Hello everyone, thank you for attending today's webinar. It's a very critical situation right in India, so probably all of you are working from home and I request you to be safe at your home and take all the necessary precautions. So before we start I would like to inform you that we have a particular program where we recognize our users so all the Bentley users who are using Bentley Software. I understand that all of you are using some of excellent projects or you have already completed some of the excellent project. So if you can just share those projects with us with your account manager or the person with you know with Bentley. We will be in a position to recognize you. We will be simply uploading the projects on behalf of you and there is a chance that you will be in a year in infrastructure program. So for today's session, it's before we start. Let me explain a little bit thing to you. 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So we are providing you with a certificate. If you are attending that one even eligible for certificate. I mean in person or if you're attending in a group, there is a process. I will explain that one in a later state. So this is a bowl. You know we are eager to know. If you need any help from our, the Bentley sales representative. So if you require really any help please. Click on the yes option and definitely we will get back to you. To solve any problem you have. So let us begin to decisions. In my past sessions, I was able to cover some of the basics of earthquake engineering and then we moved into IS1890 part one which is the mother code for Indian standard earthquake. So before we start we need to understand that India is proud to strong earthquake seeking and hints art quick resistance design is very very essential. So IS1893. But one code is providing an earthquake map which is based on the maximum intensities at each location as recorded from the damage service of the past earthquake and taking into account the unknown magnitude and known epicenters. Assuming all the conditions being average and tectonics and lithologies are also being considered in that one, so it's very important that we follow this particular. Code I just wanted 90 part one and there are some methodologies that we need to follow. So today I will be discussing on equivalent static analysis and this particular type of analysis Watt you should consider and what and what are the things that you need to do. In Stackpoole that will be discussed. So today I will start with some of the basics things. So introduction to art quick list and design and then I will move into you know, the equivalent static methodology and discussions on IS189 three 2016 para meters in Statpro Connect edition minimum based share criteria dealing with the underground structures and then we will come to a conclusion why this static analysis is is necessary for the building like structures. So before we begin, you know the past earthquake being some of the scary thing for us. So if you look into the pictures you can understand if you're building is, you know the is collapse like anything you will be scared. This is another picture so you can see one of the water tank is brutally being collapsed in earthquake and you know a parking stand is being collapsed so it gives it gives us a good amount of you know or encouragement that we come up with a good art quake resistant structure that can withstand the major earthquake. So if we move forward we need to understand that. The structure that we will be designing. We are expecting no structural damage. Dude, in case we have got the frequent checking and we can even even for the moderate checking, we can expect some of the non stop. I mean damage in the non structural elements and in case of a severe which is eventually an infrequent seeking there is no. There is really a structural damage in elastic deformation in the. The lateral load listing elements will be there, but we will ensure that there is no collapse. So we understand that design approach adopted in the standard standard is to ensure the structural causes at least minimum strength to withstand the minor earthquake. We call it as a design basic earthquake and which occur very frequently, you know and. That image and it will be able to resist moderate earthquake without significant structural damage, and you know, under the. Game sea level of art quake maximum considered earthquake level. We'll ensure that there will be no collapse. So even we move forward, we need to understand that design. We will come up with the force which we call as a design lateral force with which we will analyze our structure an will design. Apart from that, you know. The structure that we will be designing should have a good configuration. Should have sufficient strength. Sufficient stiffness, duct Ality Redundancy And if these are called the five Golden Rules of a systemic design and we need to ensure that the structure should have these things while you are designing. So coming to the design lateral force method, this is an part of it. I mean, it is equivalent static analysis. So what we're doing is that we are calculating a factor. AH. Rev uhm, you know this particular factor is consisting of some other factors of for any international standard and it is clubbed with zone factor, important factor and essay by G which is the design spectral acceleration even for. Particularly, consider that an if you're considering the static analysis, there will be one value of SVG Becausr. We are considering one mode into the analysis and in the denominator we have a factor called R&R is a particular factor by which we are allowing to reduce the force considering the fact we are considering that ality an overstrength an also in denominator we have the factor 2 which is bringing down the. MC level to the DB level. So we can understand the the seismic hazard in India in India is in seismic prone zone and in Zone 4 danzon five are termed as most CVS soul and we need to think for a special type of Design in those and those things are specifically mentioned in Rs 1893 part one 2016. So if we are thinking of this π S 1893 part one, this is the mother code for earthquake engineering in India and it has got five different part. Part one deals with provisions, general provisions and buildings. So you can understand it provisions for the building will be covered into that one. And we have the revision of this code after 2002, and then if you think for what are the new, we can see that we have got two different response spectrum curve to be used for the static and dynamic analysis. Specifically the response spectrum analysis and the damping could should be considered as 5% for the all the buildings. So this particular picture is already known to you. So let us move further and we have a two methods of analysis. As per clause number six, point 4.3 or 5 S monitoring three part one, we have got evil in static analysis an as well as dynamic analysis. So in order to differentiate what should be the choice of your analysis. First, if you want to go for a static analysis, we have some rules. What is that first time rule is that there is no plan and vertically regularity, meaning that the irregular irregularity checks that have explained. In my last SIGI mean it has to be performed rigorously, and if you have, if you do not find any plan and vertically regularity, you will be in a position that you can understand that you may have a static analysis to be performed and you have to ensure that first mode of vibration dominates the response. So if you look into the code, you know it clearly mentions that you know static analysis can be performed in the building in. Buildings in zone two, which has mean height less than 15 meters an rest you have to go for the dynamic analysis. For the tall buildings, response victim of the time stream method is preferable and if and another guideline that we can take from the code is that equivalent static analysis may be performed for the regular structure and having a time period less than .4 seconds, so this is really tough. And you know, we are simply not considering and we have to make sure that we don't. Have irregularities into the structure so even considering the fact that you know the this particular IS1893 part one is. Giving you some of the ideas that we are designing our structure on the basis of Design and on the basis of capacity. So we have a specific time period calculation essay by G calculation considering 5% damping and also the method of analysis, different R factors and we have the vertical acceleration coefficient, minimum VB criteria and also the protection property and for that if you want to think for the capacity how we were ensuring that. We are just trying to avoid the irregularity or the irregularity checks should be performed unenforced missionary walls but wants to be modeled, but this is very, very strict. I believe there will be an amendment to this particular specification, otherwise the URL is a little bit tough to handle at this particular point of time and even we are ensuring that for open story building share walls are placed properly. Coming to the next one, you know. There are some background that we considered why Wiley perform the equivalent static analysis or we call it as a lateral force method in Sri S 1893. So in the equivalent static method of analysis, it is assumed that the fundamental mode of vibration is predominant and there is no mass and stiffness CD quality. Seesmic force are computed on the basis of empirical equation and you can see that. The code is providing you with some empirical equation, and these particular equations are derived on the basis of real time experience and model study, which will give you the lower bound time period as a result of that one, the AIG the horizon, to assist me, coefficient in the principal plan directions, will be the maximum one an as well as this will provide you with the maximum bass share. Again, uh, what? We're doing the we are finding out the base year and these based here is being distributed along the height of the building. And here they are not considering the distribution of mass and stiffness. The design lateral forces are obtained at each level distributed to the individual lateral force depending on the stiffness of the lateral load listing element, and we considered that you know there is rigid therefrom and rigid die from something that you, the code is simply asking you to provide and there are situations when the digital FM. Will not be there. So, uh, the class numbers Seven point 6.4 or 5 S 1893 explicitly mentions where you have to consider the region from all the flexible diaphragm. So we are coming to the most important part, the equivalent static method of analysis or the lateral forsman method here. First of all, we're finding out the base chair basheer is denoted by VB. It is being it is being a factor of two things age and WW. Is the seismic wait and we can calculate the systemic way tan for the age. What we have said by two in 2 divided by our by I and I hope you all understand what is the meaning of that one that is a zone factor. Art is the response reduction factor. I is the importance factor. An essay by G which is which has to be computed from the response victim card. Depending on the time period that is being computed using the empirical equations provided by the code. So for the static analysis, the time period is being calculated by the empirical equations. Now, once we get the VB, we need to think for the vertical distribution and the vertical distribution is a sort of parabolic distribution that is being shown over here, which is the lateral story share key. Why is equal to PB into WHI squared divided by WH Square and where you can see in the summation in? Is the number of story that you have. So coming to the TA complete computation, T is denoted as approximate natural fundamental time period. Of the structure. And for this particular purpose, we can see that the lateral load resisting system has been categorized. You know, we can have the moment resisting frame and the moment resisting frame. Maybe you know the steel frame, composite frame and RC frame, RC moment resisting frame. So for that one the first category of the equations are available and we have the building with RC structural wall. And we have got a different approach to calculate the time period for that one and for the other building the building with your arms. The time period will be calculated by the last equations, so instead there is a methodology of doing this and we have got the St parameter and we will be distributed and we will be discussing on that one in the later slides. There has been a change those who are not following the amendment. So this has come into the amendment and this is also already been there into in stack pro. So this particular amendment the Square is coming after the second bracket. So we have got the different situations where we need to compute the height of the structure. We have got the State Building where you know the weighted average has to be considered all. Some of the scenarios provided in the picture you have to consider the height an as well as the base diamonds and is something that you have to, you know, make the program understand because the program cannot understand anything over here. So here we are. Considering few facts that we will be simply dealing with these particular things. Instead flow and for that one the Statpro doesn't have any any artificial intelligence. So what you have to do is that we have some para meters. It is a parameter driven Hughes. The parameter in order to tell the program what is the height of the building DX and data. What is the best dimension X and set directions. So we will be discussing on that one in the later slide. And we have got detailed are factors. An here just one thing you have to keep it in your mind. Now there nowadays there has been a tendency to go for you know post tensioning slabs or post tensioning part into your building and for those cases the R factor has been prescribed by the code. So you can also get this particular thing from the thing from the generate option into the stack pro. Design vertical acceleration coefficient. You know we can, uh, in the last webinars. Also, I have demonstrated that we can go for the vertical acceleration consideration. You know the since before seen vertical directions in Zone 4 end zone 5, it is mandatory. You know, if you have irregular building in terms of vertical or plan, you have to go for the consideration of particle acceleration coefficient. It is mandatory for the bridge. A structure for the long span and the structure which has the horizontal overhang of the structural element or the other subsystem. How we're doing that 141893 the coefficient will be, you know, the structure is very stiff in vertical direction, so 2 third will be considered into the vertical detection. And one important thing under any case the essay by G is 2.5. We have got the consideration of minimum basheer criteria, so whatever be there may be sure depending on the zone you have to check that one with the minimum based share criteria and the clause number Seven point 2.2. Simply explain this particular thing here. One point has to be considered that we are expecting something over here important factor should should be multiplied with the row you know. I mean we till now we don't have any. You know the amendments from the Code Committee, but you know if you think for the international code this is there so anyhow, these particular minimum based share criteria provided by the code is being implemented in stack pro. So talking about we are straight away moving into the stack pro, so we understand that in our day-to-day basis jobs that pro use our only tool. You know it is and versatile tool. You can do any model, any of the structure and if you want to go for IS1893 part one 2016, we're allowing it first you go to the definition after creation of your model as shown over here seesmic definition. Then in the systemic definition from the drop down menu you choose IS 1. 9 three part one I mean IS1890 part one. 2016 if you choose that one, you can see a button called generate and in the generate button. You will be getting, uhm, all the parameters in the drop down list, right? So these are very helpful for you and let us talk about the zone factor so zone factor can be provided manually or you can use that one from generate options. So if you want to use the generated option for the zone factor, either you can choose the city or you can even choose the zone. So depending on your dropdown option that you have selected. One factor will be simply be assigned. So as it is shown over here. So it will help you in calculating H which is dead by two into I buy are interested by G and there is something zed, zed factory, something the program will take it from here. Respons deduction factor this is also present. You know you can either define it manually or use it from the generate option. If you go to the response direction vector again you have the dropdown option an all the conditions provided in the code has been through. Has been depicted so here on, you know it is also used in a calculation of the age, and it is in denominator. Important factor and you know, in ice 1893 part one we have an inclusion of new importance factor. The important factor in the previous code or the previous version of the code was one and one point five. Now we have, with the inclusion of 1.2 which is for the residential or the commercial building where the more than two 100% people it's more than 200 people staying on that particular structure so. You can simply define the important factor from, uh, from the option and then you what you can do is that you can simply click on generate option an from the generate option. You can go to the importance vector and from the drop down you can choose that one and again it is used to calculate the age value. So you know we have seen that the response reduction the response victim curve that the code has provided is on the basis of your type of soil be cause the soil is providing you with a different type of SVG value and the soil structure interaction is sometimes is very very helpful. And since we have got a generalized response spectrum curve. Available for India and this is a dependent on two things. Damping the damping is 5% throughout and it is also dependent on the type of soil where the building of the structure will be constructed so you know we have the option. We can have the hard soil, medium soil and soft soil an for that one we will get to see some of the para meters being generated in the seismic definition which is known as. Is this parameter is this one corresponds to your heart's oil? Is a Stew corresponds to your medium. Soil and ancestry correspond to your soft soil. So where this is used, this is used to consider the essay by G and the value and you have to consider the fact that you should know that I'm. Otherwise you cannot find the essay by G. So the next thing is that, uh, St parameters, so St is an important parameter, and if you are so from my past experience with the Bentley, an specifically with stack pro and I've been asked, I've been asked many times by the user, can I use and user defined time period for the static analysis? The answer to that one is no, because our intention is to calculate the lower bound time period and that. Can only be computed by using, uhm, your empirical equations provided by the code and you know there are some other methods that are available with us just like your eigen solution or model extractions method. If you if you for any any type of building that you have. If you use the. Model extraction method. And even if you use this particular empirical equations, most of the cases even more than 99% cases, you will see the time period computed by this. Empirical locations will be lesser than the one that you compute mathematical E. The reason behind that one, you know we are not in a position to model the actual real time structure. First. We are unsure of the stiffness in the sense that the. The beams and columns that we're modeling is of RCC, but in a software we considered that one is of concrete and again there are some structural part we may take part in. I in the lateral load transfer mechanism, but we're not in a position to model at one in our mathematical model using our software. So coming back to the St parameter, you can use the St parameter from the graph or assign it manually. Or you can use the generate option so we have got 45 St parameters and we will see that if we have the RC Murph then they still parameter should be 1. RC still composite moment. Resting kimmich will be ST2 RC still moment resisting building it's S T3 and then if it is an building I mean with the share with structural walls then we have to use the SD4 and the other type building, meaning that with the infield walls we have to use the SD five para meter. So the most important thing is we have gotten you inclusion. That is the St four parameter and how this should be used. We have the special recommendation that this is. This will be used for the building with RC structural where we're using the St four an the guiding equation by which the time period is being calculated. You know we have an equations where we have the factors. HNEWNEW is being computed by AAWI and it is also a factor of ill by HOK. So how we're doing that one Watt? We're asking from you if you provide the seismic definition in the seismic definition. If you're using the F4 parameter, it is mandatory that you use the Wild area parameter. An here you provide the length and the width of the wars that are. Along the X and the directions you know, but this particular world once again I'm saying, is structural wall, not a brick wall or the Flyers prequel. So if we provide those date as you know, in this particular model we have. You know, this particular wall information. And. What we're doing. We're provided that one over here, and you can see the width of the walls and length of the wall is being provided, so in eggs directions, the length by height and their areas is being computed and the submission is been provided and we are following this particular equations and we find the time period and similarly for that direction this. It WI uh for uh, you know, for that direction, wall is being computed individually and then it's a mission has been computed and what we're doing. We're finding out the time period. So considering this particular fact that I'm creating, the exhortation is .63 an in zed direction is .9 one, but we have to be careful over there, the mandated and it has to be compared with the another time period. Which is absolutely to the SD 5, which is 0.09 divided by root D. So we are internally computing that one, and we found that 0.09 H divided by root root word of D is that particularly question which is providing the lower time period than we calculate by St four parameter this particular equations, so we are taking these particular time cleared into analysis and. If you look into the stat, out would just provide it over there you can see stand is calculated absolutely taking this particular value. So damping, if you're coming to the damping, but I mean it is recommended that you know you considered 5% of the damping. 5% of the critical damping, so by default affected is 0.05 right? But sometimes you know the people we have seen. The people are quite interested to use a different damping apart from the damping that we provided, so sometimes you may provide 2% temping or 3% damping. So what will happen to those particular class? We are going be cause the code is not giving you any any. You know any clue what to be done? Even it is very strict to use the 5% damping. So what we have done we have used table tree of older version of the code which is which is coming in the clouds number Seven point 2.4 you know of the latest code for the 5% damping and if it is you know anything other than the 5% damping so we are following the table tree of the older version of the code that is in 2002 S 1893 part one. A 2002 code and Claws Number, Six Point 4.2 and we have got some factors to be considered with the essay by G, so we're considering that one. And if we're doing that one, you know we have provided the 2% of the damping. The essay by G is 1.395 for the 5%, and we're modifying that one with the factor 1.4 as shown in the table three. We're getting a value as one point. 9026 so we're doing that one, and this is something we have seen the people is wanting is eager to use this one, but you are violating the code provisions, so for that one we are simply giving you a warning. The warning says is it by G4S One 890? Two 1016 is only considered for 5% damping for any other value table, three or five S 189. Three 2002 version part one or obviously will be used and we are strictly giving you an instruction. It is highly recommended. To always use 5% damping as specified in the current version of the code. Now sometimes and we can understand that there are some situations we may use, we may need to use, you know user defined time period and that particular time period. Definitely for the equivalent static analysis should be considered following the equations and you can simply provide that one in pink sand. Apisit parameter. And there are situations you know you have a particular building where the supports in the. You know you have the support, which in the X direction is at the. I mean it is not at the same Y coordinate level. In such a case is you know the program will try to calculate the base dimension. And it will not be able to find that one. It's it's better that you simply compute the time period in the X direction and then provide it in the PX parameter. And this is one of the scenario which is as per the figure, five or five 1893. You can see this will be one of the cases in which why do you have the state you know building? So this is very critical and program will not be able to handle this and we we simply expect the user to calculate the time period and provide that exhilaration. Typing in providing the speaks parameter. Similarly for the zip direction, if the Y coordinate of the supporting the days Jason are not in the same Y coordinate, what will happen? Is that even the program cannot find the base year. Sorry, base the base dimension and it will fail to compute the time clear Dan. This is the scenario where you may have and you have to provide that one. We have two other parameters, death, the foundation. You know, this is one of the thing those who are using IS1893 part one 2000. To code the portion of the structure which is below the ground. Should be mentioned by using the DP parameter, but you know the in the present version of this particular implementation we are absolutely not recognizing the DT parameter or we'd simply suggest not to use the DT parameter rather Watt. We will ask you to do is to calculate or to provide the GL parameter. GL parameter is very very simple and Eligio para meter. What we do is that we provide the Y coordinate of the ground level anwil. Will it be used? It will be used to calculate reduce age value for this portion of the structure which is below the ground. So how we're doing it is been explained in the next slide. So here you can understand or you can see that there is a building which and some of the portion of the structure is below the ground and you have you know the retaining walls connect to that one. And what happens is that you know the behavior of the structure, which is above the ground and below the ground will not be the same. Even the code has suggested very simplified process to handle that one and Watt we do is that. We're calculating the seismic wait for the structure which is above the ground, and we're calculating the VB which is H into W and we're calculating all the factors and height of the structure is coming can be considered over here to calculate the you know the time period. Um and we can distribute the Seesmic. You know the base here in the story share using the normal formula, which is above the ground and for the ground, which is for the structure, what the portion of the structure which is below the ground. What will happen? What will happen to that? Is that you know everything will be the same, but we will use an interpolation factor. AHI mean an interpolation factor, or the multiplayer. Should be applied on age and we're calculating. You know, the portion of the weight of the structure which is below the ground and then we are distributing it in the below the ground portion. So as a result you can may have a condition like this. So how we're doing that one man for this particular structure? You know the Y coordinate of this particular and Y coordinate of the ground level is 9 meter, and we have got the 21 meter in height of the building. So what we're doing is that you. What we're doing is that we are simply finding out the, you know, the first of all, we're finding out the time period. Time period is being calculated as a time period. He's been calculated by zero .075. There is a steep. Depending on the AST parameter, an H to the Power .75, so the height is you know 21 meter. We're calculating the. You know the time period of the structure and from the depending on the type of soil, the essay by G is one by TA and it's. Value is coming out to be 1.359 this portion. This will be an reduced and you know what we're getting zapped by two into a buyer interested by G. So you are getting this particular value which is been deported over here and for the underground structure. What is happening is you know we are applying the multiplication factor. If it is, you know this particular. Interpolation factor if the structure is at 30 meter level, the factories .5 and then if it is at the ground level, there is no reduction and what will be the value at nine meter is being calculated an that has been used as a each reduced and it is being deported over here. Here we are also allowing you to use. You know value, different value of essay by G. Even this is something that is be sometimes be helpful for you. You know if you want to, if you want to provide some value of the essay by G so directly to the program. So what you can do is that you can simply use the essay parameters so they say by G value will be taken from. The is it by limited that you provide and age will be calculated depending on that one. Again, we talked about, you know, the different damping factors, and we're using the table three of the older version of the code. This particular damping factor can be Simply put as an improved to the structure at 22222 to the software in the DF parameter, which is the multiplying factor for essay. So you can use that one. So even for the factors you should use is from the table three of the older version of the code, which is I is that ability of IS1890 part one 2002. So what we're getting is a veggie modified essay by G four 5% multiplied by DF. Is the final value when we talked about the height of the building, it's it's sometimes very difficult, you know, to find out the height of the building for a software be cause we do not have the boundary conditions modeled. So if you have some portion of the structure which is underground, and even if you have the stable building, so these are the situations where you specifically need to. You know the calculate the height of the structure, so height of the structure is something that I mean that sometimes is required to be provided required to be taken as an input from the user and that is that to be and that has to be used by the HT parameter in here. If you this is I mean you know you can see the parameter list and some of the parameters are is provided with the astrex Mac marks. So these parameters are something. Are those para meters where we are simply, you know, allowing the users to? You know with some default value. So in case of a height of the building, what we're doing, we're finding out the lowermost Y coordinate, which is a supported, which is a supported one, and two the highest Y coordinate of a node in the building. And difference between these two will be the height, but that will be wrong for some of the cases and that will lead to an conservative. I'm very very conservative value of SVG or even the best so. You need to provide the HD perimetre. User defined D and what we're doing is that in the X direction and as a directions, we have this DX and visit parameters because the base dimensions sometimes has to be used, even you know. This DXD, zed and DT parameters should be used. I mean in synchronization. So here for a particular structure where St five has been provided and you know the height of the building is 15 meters based dimension is in the extraction is to help an based diamonds and instead direction is 6 meters. So in the X direction you will see the 0.09 in 215 divided by root, above 12 it's coming out as an 0.3 eight 9.97. And that is being reported over here, and similarly in that direction. The other thing, 0.09 in 215 divided by root root over of six is being provided and the time period is being calculated 0.55. Again, each and everything that we are doing over here we have to check the best year that we're computing should be compared with the I mean should be compared with the minimum base share for a particular zone. And if you're the computed based here is less than the minimum based here, you know the minimum base share should be the base ship that you should use. So this these things is being simply calculated by. The program and in the. Uh, in zone one. The factor a factor for the zone one is been computed over here, which is .7 multiplied by the seismic wait an divided by 100, so it's coming out to be 90.66, so you know calculated based here is 6 foot Seven and minimum based series 90 so. You know the Mac. The calculated based shares which will be used the program is doing that one. And most importantly, whenever we are going for a base share calculation, it is mandatory that we distribute it as is a story shut. The program does that one. So how we can? Even if we know that if you after the analysis, if you click on the static system include cases, it will be displayed but you have the option to get those generated forces reported in your output file. How to do that? One you can go to the analysis commands from analysis and design. Design tab, you go to the analysis commands and you add the command you click on define commands and from the analysis and print command you choose the option perform analysis, print load data as shown over here. So what it will do, it will report you know for a particular flow water the nodes and thus story share computed at that particular. At that particular floor. So now we can understand from our last discussions even we have explained you, what are the parameters that are to be used in a statics is weak analysis and how to do that one. But why this particular static analysis is required be cause we have so many uncertainties while modeling and structure in a software? You know we don't know what will be the actual stiffness and what will be the value of modulus of Elasticity Evalue. And even we are not modeling some of the portion of the structure, so you know it may so happen that in the mathematical model that we generate to solve, you know the model extraction. Maybe you know the approximate one. So the code has suggested a check and this particular check is mandatory for the building like structure while we compute the beige where we compute the base share using the empirical location, which is the equivalent static method and also with the dynamic method and this comparison of the base share is very very important and that is why even if you go for the dynamic analysis you know you need to go for the stat at least computation. Of the best share using the. The process we use as an equivalent static method. So, uh, once again, uh, you know, we, I have come up with the book of U IS1893 seismic analysis and this particular if you require if you want to purchase this particular book, you can send an email directly to me and I will be helping you out. I will be, you know, asking my academics, teams or Bentley place team to contact you as soon as possible. Bentley in suit press publishes a broad spectrum of textbooks and professional reference books dedicated to the needs of educational. An infrastructure communities are new, offering is a unique book title seesmic analysis using IS1893, part one 2016 and start pro connect edition. It is targeted to the needs of professional structural engineers to understand the subject in depth. It also covers how they need to apply that knowledge in solving feed problems related to Seesmic forces with start pro connect edition. This book covers a wide variety of topics from the basics of earthquake engineering to an introduction to AI is 1893, part one, 2016 code through proper modeling considerations of the geometric stiffness, and loads to the choice of proper seesmic analysis of the structure. You can get your own copy at the Bentley instant press online bookstore. Additionally, you can find the book in digital formats you can learn anytime and anywhere. Be sure to explore the offerings from Bentley, ensued press and support you. Own digital initiatives to advance infrastructure industries. So this is about the book, and if you really want to learn, you know in in in the book I have got some dedicated chapters which has the discussion of evil and static analysis and how to use the proper parameters that have explained. In short over here and even all the calculations with some sample problems are there which will simply increase your faith into our program. And, uh, you know if you want to buy it online, you can go to thisstore.bentley.com and find out the book in the book section and you can see that one. So I really thank you all. We know we're going in a crisis where COVID-19 is simply, I mean allowing us like anything. But I believe this particular session will be an interesting one. And I hope that you will be in a position to help you out with the Bentley software. Dan, I haven't won. See I mean I've got 1 announcement over here. So in my last session we had a plan to help all of you. All of the users who are using the Bentley. I mean, let us software specifically for Statpro Connect Edition. You may find that you know they're using. The little bit different than you may face some problem in doing that one. So we had thought that we will be conducting an webinar on 3rd of April to help you out, but for this particular COVID-19 spread in the community we are postponing that one and just stay tuned. We will be announcing those sessions and believe me that particular session will be very very helpful. And for those who are using. Stack broke statpro. Please update yourself to the connector nation to use this particular IS1890 part one and 2016. I'll thank you all and have a good day, bye. Hi all, I was having some issues over here to your questions I believe I you can hear me right so we have noted down all of your questions you know since we all are working from home and facing some issues this particular session you know I was able to explain you all the things and I think that there are some questions which are not been answered. So what I will do is that I have we have noted down all these questions an even we can send the reply to you even we have a community known as Ben Click community and where we will be posting, you know the answer to all your questions. Just give us some time and we are facing a really hard in India for copied 19 I mean thread. So I believe we will be in a position to. Answer all of your questions it. Once again thanks. All of you for joining. You know the next sessions? I mean we will be sending out the invite is for the the next sessions and here let me see one or two questions. Can even answer that one at this particular part time. So one of the question was What is this T parameter and know that is a particular St parameter is a particular parameter which can be used to compute the time period of the buildings with the with the RC structural wall and there you require to input, you know the vowel length and thickness in. X and the duration of the wall. Um? Next question that I can see is uh. The comparison of the question on the comparison of the base. Yet yes, the program does the comparison of vision. Actually, if you're performing respon spectrum or the dynamic analysis then the base share from the dynamic analysis has to be compared with the base share computed from the static method an this particular. This particular stuff, or this particular operation is being done internally by the problem and as a result of that one you will be getting this, particularly when all the response quantities from the response cases will be multiplied by this particular factor. So in my next session I will be explaining on that one in details. Um? X question that I can see. What is DX Ann visit parameter and look into the code and even into real structures. There are some 10s. Maybe one could be your actual base dimension of your structure, depending on the on the conditions, so the software doesn't have any information because in the software we are going for the modeling only and we're not providing any other information, so it is imperative that the software cannot understand what will be the actual base dimension in X and they direction, so we have kept that one opened for the user to use DX an these at para meters. Next question. That I can have a I can see from here how to model underground part instead. So basically, and how will the software know the part above the ground and the part will look down so it is actually very difficult for the program to understand. You know which post. The round in which person is above the ground. So even in the end, at the time of modeling we are not doing that one or we're not providing any information. Rather what we're doing is that women IS 1 eight times this week. Parameter we have got a parameter called GL parameter. So in the GL parimeter you need to provide the Y equal 8 of the ground level. So this will be a particular thing by which the program can understand which portion. Is below the ground an above the ground? So. Another question is, uh, how to apply vertical based here in case of a building in seismic zone and zone four time zones like you know. This is, uh, a particular thing that you have to do this the mandatory. So there are two parts. One is you know if you want to. You love vertical earthquake. If you want to consider the effect of vertical earthquake in in static analysis, since the two day session on static analysis, so I will be discussing on that one. So first we start. You know first we start with the. This meeting Uh, and. I just wanted to see if we definition and in the IS1890 seismic definition. What we do is we provide the system seismic parameters and then we may provide some seismic weight but it is not required. If you have got the master difference load case and now we go onto the load case details and we in the primary load cases what we do is that we find the seismic load in X&Z and then we can define invite Jason why being the vertical direction? So. Uh, I think we are running out of time and you know. We are we have all of your questions so I will be answering them. Uh, and we will be posting the answers involving clickability site. So once again thank too thanks to all of you vining. This particular session B says stay at your home. Thank you. _1594283464334

This complimentary, one-hour session will include a technology presentation and time to share questions. My presentation will include:

- Use of emperical equation to compute approximate natural fundamental time period
- Consideration of Minimum Base Shear Criteria
- Criteria for underground structures

The** Equivalent Static Analysis following the provisions of IS 1893 (Part-1): 2016 in STAAD.Pro CONNECT Edition** SIG is open to everyone, so invite your colleagues!

See you online!

***The webcast will be streamed through your computer, so there is no dial-in number. Please make sure your computer speakers (or headset) are turned on and the volume is set to an audible level so you can hear the presenters. Help*