WR1

you cannot directly do this! to have both the grid systems you need to first put the cylinderical grid then import from cad the other grid system. I am not sure but you can try this way! What i do when i have this type of issue is that i dont use cylinderical grids. rather i just draw the grid lines in CAD explode them so that they are not arcs or polylines just simple straight lines. If i require some curve. i dont break that arc cz i know SAP/ETABS will break them in 24 pieces of smaller segments straight lines.

did u take care of all the points i mentioned above?

well i dont believe SAFE gives wrong results as compared with manual calculations.. and here im talking about SAFE 12 But you have to consider following things:- 1) check the load size for perimeter calculation 2) apply the correct parameter for location of column...For example if it is interior column , select the point goto Design>Punhcing Overwrites and make it interior 3) Make correct cover settings. Goto Design> Design Preferences and put the correct cover and bar size 4) Make sure you are familiar with the load combos for which you will design your structure or punching After analysis, right click on the point of column you will see detailed calculations for punching and the governing combination. Make sure SAFE 12 is calculating the effective depth and the perimeter correct which will surely be correct if you follow above steps. You can also check punching calculations of other non governing combinations.

Well in SAFE the punching area is calculated based on the column or load size. When you are not placing any stiff section on the column center or the load size is not defined then you punchign area is reduced giving you more reinforcement. So when you put the right column or load size it gives you correct values of the punching!

welcome

Well check the tutorials section, i have posted my tutorials there for ETABS. You can download a very simple book i have written there but its not about tutorial its about using ETABS. I will soon upload the solved examples in ETABS too..the best thing is solve an example manually and then ur self try to get the same results (or similar of course) from ETABS! and see why not u getting the same results. This way you will better explore the options and menus.

Well im not in Pakistan but i have asked my friends in pak to start involving but due to i think lack of experience or having no job they are not posting here. Anyways i can bring other nationals here but they are much experienced and the pakistani ccommunity i interact with here is also experienced in terms of structural knowledge. Thats y i am waiting this forum to grow then they could really participate here bcz they are all seniors. they will not find much interest. Anyways i am trying...everyone should!

CSI (ETABS, SAFE, SAP) SOFTWARES ANALYSIS FILES EXTENSIONS CSI (ETABS, SAFE, SAP) SOFTWARES ANALYSIS FILES EXTENSIONS After running the structural models they create numerous analysis files with very strange file extensions. Here I am talking about CSI softwares; ETABS, SAFE and SAP. These analysis files contain information about matrices and analysis results. More information about the file extensions can be found on CSI official webpage: https://wiki.csiberk...analysis models or https://wiki.csiberk... settings files When sending the model files to someone you dont need all those temporary analysis files rather just 2 files; one model file and another its text file. Why we need to delete the files? Well, one thing is there are lot of files which we dont recognize, and the major issue is they take too much of space. A single model may be upto 10MB or less or more, but after analysis, the folder size reaches sometimes upto 1GB, using hard disk resources. So its not wise to just leave them as is because once you have model file you can get the results on any machine after running it. For example for a simple model! An increase of about 62 times!Deleting the Files 1) From program To delete the analysis files of the model, there are many ways and techniques:- Open the model, goto File>Delete analysis files> There are 2 options; one for deleting analysis files of that model only and another to delete files of all the models in that specific directory. Here it can't delete the files of models in sub directories. Just imagine if you have a large project containing many buildings having at least 2 models, all in separate directories, so would have to open all of them one by one and delete files this way. 2) Manually Deleting the Files Another method is to search and delete the files yourself. Unfortunately, I could not find on internet a complete list of all the extensions of analysis files. So I just created sample files for each of the program and then converted by some means those extensions into a text file. I will for your convenience put all those extensions here. So just goto windows search explorer and just copy paste the extensions text string the file name box of search window and delete all the files in one go. If I have missed some extensions of mixed it with other programs, please correct me. 3) The best method While writing this article, I came across a very interesting method to do all that crap. There is file called Eat.bat in ETABS and SAP program files. When I opened these files in MS DOS, I found out that this DOS files deletes all the analysis files in that directory and you can get the list of all the extensions of the files if you try to edit it. Well that would be the official extension list of analysis files from CSI. The extensions I published below were extracted by me so they miss some extensions. I will later update those. This Eat.bat is found in ETABS and SAP folders but not in SAFE. I dont know why CSI people havent included this in SAFE. So I came up with an idea to modify the program so that it can do following:- 1) Delete all the analysis files, not just in that specific directory rather in all sub directories too and for all programs like ETABS, SAFE and SAP. I will just add all the extensions and a switch for deleting files inside other directories:- ERASE /S /Q * This program can be downloaded from here. Soon it will also be available in standard EXE format. Keep looking http://www.sepakistan.com/public/style_emoticons/#EMO_DIR#/tongue.png Extensions of CSI softwares:- 1) SAP *.MSH, *.MSH, *.K , *.K_?, *.K~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sf, *.$sf, *.C4, *.C9, *.D9, *.F9, *.fbk, *.ico, *.K~0, *.K~I, *.K~J, *.K~L, *.K~M, *.K9, *.M9, *.xsdm, *.Y, *.Y$$, *.Y~, *.Y~1, *.Y00, *.Y01, *.Y02, *.Y03 If you are using all of these programs, you will most probably like to search one time all of these extensions. So here I have merged them *.MSH, *.MSH, *.K , *.K_?, *.K~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sf, $sf, C4, C9, D9, F9, fbk, ico, K~0, K~I, K~J, K~L, K~M, K9, M9, xsdm, Y, Y$$, Y~, Y~1, Y00, Y01, Y02, Y03 Rana Waseem ranawaseem.com

sway intermediate...but you have to check ur frame according to chapter 10

see these

i am using SAFE 12.3.1 and i think its the latest version to draw a design strip select the layer A or B and then put the values of start and end of strip widths For example you want to draw strips of 1m width then click on draw design strips. Select layer A and put 0.5 in all 4 boxes of left start width, left end width, right start width and right end width. This 0.5m or 0.5ft is above and top of center line of design strip so the total width is 1m. Then just replicate this line to cover all your slab. Similary draw design strips for B layer. You can draw A layer parallel to X direction and B layer parallel to y direction each 1m width. If you click on "SHOW STRIP WIDTH" in view options dialogue box you can see the widths on screen Usually it doesnt matter you select column strip or middle stip because you are designing your for unit meter width. So you get reinforcement areas per m. If your strip width is more than 1m then you have to divide the resulting moments or reinforcement areas over that width to get moment per meter or reinforcement per meter.

yar yasir sb chor me admission to kara de yar...and u know i have 2.10 gpa

welcome both of you! participate actively in the forum. it has lot more to give to you!

i think (for a guy) one of the biggest challenge in life he faces is regarding masters. when to do from where to do etc.. and so on! regardless of everything ...money, job, etc...i believe masters is minimum as far as knowledge is concerned. one would say that you can get knowledge by spending some years in industry so need for masters.. but its needed my friend..although i havent dont it yet.. 2nd thing is what is the benefit of masters apart from getting knowledge.. i think the possibilities are better job related to your own specific field good opportunity abroad the bottom line is if you can afford masters do it! when its upto u! or gimme the money i will do it

just to add it here that dont chage convergence values. I have tried many types for many many values. They are give stupid results may be im wrong..test it your self

The main difference between SAFE 8 and 12 is that SAFE 8: was analysis 2D plate behaviour only SAFE12: by default it takes full analysis rather than 2D plate I dont my self aware of the full analysis which SAFE 12 does but the answer to the question that why NON LINEAR UPLIFT analysis in SAFE 8 takes no time and why in 12 it takes hours. We faced this problem and asked CSI guyz! because personally i dont like the SAFE 8 interface but there were people saying that if you have to do the non linear analysis export it to SAFE 12 which i really dont like. SAFE 8 was doing only 2D plate analysis (so you dont have to put restraint in x and y) only vertical springs. But in SAFE 12 if you run the analysis and check the log you will find that there is instability error because of no restraint in x and y. in SAFE 12 the options to select non linear uplift analysis are also very complex. Its not clear to select NON LINEAR UPLIFT in individual load cases or to select the option CONVERT COMBO TO NON LINEAR COMBOS well dont select the first option to check UPLIFT in each load case (results will be very strange) rather convert all load combos to non linear for uplift (results will be fine) but remember here that if you are doing 3d analysis without restraining in x and y your simplest model could take upto 3 hrs to run bcz of instabilities. to compare the results with SAFE 8 and to save run time goto RUN>Advanced options> and select 2d plate analysis option so by selecting just option you convert safe 12 to 8. no need to use the older version of SAFE and also note that in SAFE 12: Tension is + and Compression is - SAFE 8: Tension is - and Compression is +

Dear Umar, the admin! here are some of my suggestions i would like to include in our forum to make it more unique! we need a section called Trusted or Solved Examples or Learning Tutorials in which we can have subsections like ETABS, SAFE, STAAD, SAP etc... or by topics e.g. FOUNDATIONS, SLABS, FEM understanding, Intrepretting results of FEM etc i think by subject is better. Now every one can submit an example. After verifying the examples by us or other members, we can make it public on forum, so that it helps new learners of FEM softwares to download and understand it. I think this is the unique thing i havent seen in other forums even in very famous international forums... 2-We need a new section called Model Review...If any one wants to ask to review his/her model. They can upload it and after checking we can upload it back so that they can learn! again unique feature. By the way its all time consuming but i assure you i can go far with that concept personally 3-New section for developing new design sheets, vba programs, writing new articles or books and authors asking for help for joint writing. like i want my self some one who can assist me in make a new book on etabs. but unfortunately i had been very busy. but tomorrow my current projc gonna finish so i will think abt it seriously! 4-Need a new section for assisting structural programs like CAD, REVIT etc where we can share LISP files..by LISP files i dont mean the drafting help files, i mean rather pure engineering or related to engineering work files and stuff and tricks 5-Now i think we need atleast two moderating members to just arrange topics and threads and warn members for not posting in right section. They should develop the appropriate policies and upload on our forum and then appropriate authorities given to those moderators. 6-I dont know if we have a image host or not..if we dont we need one! I will add more but for the time being thats it lets have a discussion public or private...to consider these!

uplift non linear analysis is used so that we get zero tension soil! it can be done by iteration process by manually applying soil springs and removing tension springs...or more easily by program non linear uplift analysis option. there is a big conceptual difference between safe 8 and 12. i bet most of the guys are still confused to see the difference between 2 programs of same example.. pls continue this topic..im willing to go in details but step by step

first of all tell us r u talking about SAFE 8 or 12?

r u done with the understanding of strength design combinations?

but if you ask me personally ( although i love my fields..but some times.....dont ask:P) i would never recommend to anyone to choose structural engineering...yes a hard truth!

Very good admin!...keep on working good things for us

Thanks Abdul Quddus! we welcome you here..enjoy!

I like it... yes its true Now see the images in sequence

NO THERE IS NO DIFFERENCE IN ETABS FOR LINES