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  1. Yesterday
  2. catch the discussion at http://www.eng-tips.com/viewthread.cfm?qid=426349 I'm surprised that no one has filed a complaint with the Royal Institute of British Architects; in most jurisdictions, the architects would be responsible for the building envelope and the insurance that the building was not a death trap. Dik
  3. Last week
  4. Hi there! Trying to build up a store of Civil/Structural Engineering Spreadsheets. Mainly interested in Eurocode based calculations but will take anything. Please send anything you have to my email and let me know if you have any requests and if I have them I'll send them back! (Free/unrestricted spreadsheets only) Email: civsoc1980@gmail.com Thanks very much!
  5. Can you contact your Local LUSAS Distributor and ask for the Fast Solver key. You may send your test model and text .log and .out files to support@lusas.com and they will point you to the right direction.
  6. Hallo. In general shear walls are design using strut-and-tie models. This allows a way to design for both shear and longitudinal stresses. Cheers
  7. Hallo. What is that you want to calculate? The uniform component of the temperature variation? Cheers
  8. In simple words, EHF's represent a percentage of all loads on a particular floor, so they are proportionate to the individual load types on that floor. For examples, on one floor you have a dead load, superimposed load and imposed load. Each of these loads has their own partial factors. When you've derived design dead loads, superimposed loads and imposed loads you just multiply each of these loads on the particular floor but the respective percentage and you arrive at your EHF's, which represent the sum of the previously mentioned components. Hope I"ve made myself clear enough, Reinis
  9. Hallo. A sketch of the current situation would go a long way. Anyhow, don't hope for definitive answers to your question as they're something we all are earning our living for. Cheers
  10. cohesive soil

    Check out the book: "Single Piles and Pile Groups Under Lateral Loading". I haven't used it myself but from what I understand the best method for practical design of laterally loaded piles using spreadsheet etc is "p-y" method in the book mentioned above (it is called the same in many other books as well). Best of luck, Reinis
  11. Hallo. You can if the basement foundations slab is thick enough so that you can assume it to be rigid, which in general you cannot do, as usually foundations slabs are not that thick. If they were thick enough to be classified as rigid they wouldn't be economic. Anyway, a design of foundations slabs is a complex process and one must have some experience in design of such foundations to achieve safe and economic result which will yield good in-service performance. Best of luck, Reinis
  12. Hello everyone, i am designing a two storey RC Frame house according to Eurocode. My question is, is there any EC8 provision that sets a minimum for the fundamental frequencies for certain types of structures? if not, then what is your advise? Regards
  13. Earlier
  14. Took a brief tour... logging in was a breeze... the calculation page could use a bit of work to make it a little easier/faster to navigate. The one example, I ran, yielded values that represented numbers from doing an independent calculation. You should also have a disclaimer to keep silly people from abusing your efforts; you have no control over how the information is being used. You've put a lot of work into the sheet and it shows. Thanks, Dik
  15. Hello, Is there anybody interested in design of steel beams in torsion? I hope so, because some time ago, I have developed web application for this purposes and I strongly encourage you to tests! Web application is available at www.test.be4m.net page. You can use the default credentials, i.e. username: "be4mtest", password: "Haslo1". You can also register yourself and use your own account. General assumptions: > Beam has one span (simply supported beam) > Support condition is the fork support > Beam load is the concentrated force with eccentrity with respect to the cross section shear centre > Beam cross section is hot rolled I or H section > Beam cross section class due to bending is 1 It is also important to know, that this application uses: > Finite Element Method - for calculating the internal forces (linear static) > SCI P385 Design of steel beams in torsion - for calculating the influence of torsion (degree of torsion and its derivatives, additional bending moments) > Eurocode 1993-3-1 - for global stability checks (this module is still in implementation) Any feedback would be greatly appreciated!
  16. Any information on the type of construction? Particular interest on the type of cladding used. Fire seemed to quickly engulf the building via the cladding. Dik
  17. Hello forum, We want to increase the capacity of existing working crane as part of expansion. For this purpose I have checked column of building supporting the Gantry girder(GG). They are ok. Now as far as GG is concern it is hot rolled I beam with channel section (open face down) from top, but this current GG size is not ok for for the increased capacity. Now task is to increase the capacity without changing existing GG set-up (without breaking and replacing it with new increased size GG), addition is allowed to current setup(only for GG, no addn columnn will be added) So does any one have idea how It could be done? Please share any refference examples from document or book or it's link for manual calculations. I am planning to add hot rolled I beam from bottom to existing GG with flange of existing bolted to new one. Refference may be from any national code or book. Thanks in advance.
  18. In publication "Eurocode load combinations for Steel structures" in Chapter 4.1.2 state "Frame imperfections may be incorporated directly into the structural analysis by defining an initial sway for the frame. However, the more general approach is to replace this geometric imperfection with a system of equivalent horizontal forces (EHF), referred to as notional horizontal loads in BS 5950. Whereas in BS 5950, equivalent horizontal forces were only required in the vertical load case, in the Eurocodes it is deemed that since frame imperfections are inherently present, they should be included in all ULS load combinations. This appears entirely rational. EHF are not required in SLS load combinations. The EHF should be determined separately for each load combination since they depend on the level of design vertical loads. For each storey, the EHF may be calculated as the design vertical load for that storey (not the cumulative vertical load) multiplied by 1/200 (i.e. 0.5%). Depending on the height of the structure and the number of columns in a row, reductions to this basic value of 1/200 are possible, as detailed in Clause 5.3.2(3) of EN 1993-1-1. If horizontal loads (H Ed) exceed 15% of vertical loads (VEd cr) these cr sway imperfections may be disregarded, and EHF ignored – this would more oftern apply to low rise buildings. So in Chapter 4.2.1 Load combination for ULS (based on equation 6.10 from EC1990) is: 1,35G+1,5Q+0,75W+EHF where EHF is "Efective horisontal force" I strongly recommend to read publication.
  19. Hi all, I have recently been looking at the load combinations for my first RC frame to Eurocode and one thing that I don't fully understand is what factor (Ψ) to apply to the EHF in ULS combinations. Can anyone help please? I realise there is no partial factor to apply but not sure on the Ψ factor. There seems to be a bit of ambiguity on whether EHF’s are considered a permanent, variable or accidental load case. One thing I read said it could be treated as a dead load because it predominately comes from dead loads in which case there would be no Ψ factor applied. But then looking at something in an IStructe Article, it applies a factor of 0.2 to the EHF so I thought I’d best check if anyone knows or has any useful links to anything on this subject? Thank you.
  20. Hi, I was wondering could anybody help me, in relation to RC Shear walls, when shear walls are subject to lateral loads such as wind and notional loads in a tall structure, is there a specific check for horizontal shear in plane/or traverse of the wall which should be checked? or is it just based on section 6.2 of EC2 as per beam and slabs etc. Section 12 gives a shear check for plain walls however this would be based on the section remaining plain, i.e. no tension/uplift in the wall, thus section is un-cracked. However if you have a tall structures with shear walls there is usually tension, thus does section 6.2. apply in this case? I have checked literature etc. on RC wall designs and there doesn't seem to be any examples or commentary on checking for shear in walls in accordance with the Eurocodes. if anyone has any comment or already done this I would like hear your thoughts? Thanks, S
  21. cohesive soil

    Hi Reinigailitis,Can anyone share the equation or any source to calculate the VRd, max & VRd for the foundation resistance calculation as per attached image(Eurocode 7), please. http://www.sefindia.org/forum/viewtopic.php?p=77020#77020 Thanks,Regards,Saikiran Gone.
  22. Dear All,Can anyone share the equation or any source to calculate the VRd, max & VRd for the foundation resistance calculation as per attached image(Eurocode 7), please. http://www.sefindia.org/forum/viewtopic.php?p=77020#77020 Thanks,Regards,Saikiran Gone.
  23. GRAB THE OPPORTUNITY BEFORE ITS TOO LATE OFFER VALID ONLY FOR 24 HRS. 70% OFF for 3 YEAR MEMBERSHIP https://www.civilax.com/join-civilax-vip-today-save-100-usd-valid-24-hrs/ About Us Civilax.com is designed for Civil Engineering Professionals, Undergraduates to update them selves with latest versions of civil engineering software, E-books, software training videos & Manuals. In Civilax.com you can find E-books covering all areas of civil engineering, gigabytes of software to solve any kind of civil engineering related problems, standards and codes from all around the world, thousands of multiple fresh download links, years of experience and advices provided by senior engineers, new friends to meet, tons of lectures for young engineers and students, engineering support 365/24/7 and many more. Benefits of Civilax.com Membership - Complete access to Civilax.com - Unlimited Downloads from direct links - No waiting time Our Strength - 3000+ Civil Engineering E-Books - 100+ Civil Engineering Software - 3000+ Civil Engineering Tutorials, Manuals and Videos - Civil Engineering Spreadsheet Library - AutoCAD Drawing Collection
  24. GRAB THE OPPORTUNITY BEFORE ITS TOO LATE OFFER VALID ONLY FOR 24 HRS. 70% OFF for 3 YEAR MEMBERSHIP https://www.civilax.com/join-civilax-vip-today-save-100-usd-valid-24-hrs/ About Us Civilax.com is designed for Civil Engineering Professionals, Undergraduates to update them selves with latest versions of civil engineering software, E-books, software training videos & Manuals. In Civilax.com you can find E-books covering all areas of civil engineering, gigabytes of software to solve any kind of civil engineering related problems, standards and codes from all around the world, thousands of multiple fresh download links, years of experience and advices provided by senior engineers, new friends to meet, tons of lectures for young engineers and students, engineering support 365/24/7 and many more. Benefits of Civilax.com Membership - Complete access to Civilax.com - Unlimited Downloads from direct links - No waiting time Our Strength - 3000+ Civil Engineering E-Books - 100+ Civil Engineering Software - 3000+ Civil Engineering Tutorials, Manuals and Videos - Civil Engineering Spreadsheet Library - AutoCAD Drawing Collection
  25. GRAB THE OPPORTUNITY BEFORE ITS TOO LATE OFFER VALID ONLY FOR 24 HRS. 70% OFF for 3 YEAR MEMBERSHIP https://www.civilax.com/join-civilax-vip-today-save-100-usd-valid-24-hrs/ About Us Civilax.com is designed for Civil Engineering Professionals, Undergraduates to update them selves with latest versions of civil engineering software, E-books, software training videos & Manuals. In Civilax.com you can find E-books covering all areas of civil engineering, gigabytes of software to solve any kind of civil engineering related problems, standards and codes from all around the world, thousands of multiple fresh download links, years of experience and advices provided by senior engineers, new friends to meet, tons of lectures for young engineers and students, engineering support 365/24/7 and many more. Benefits of Civilax.com Membership - Complete access to Civilax.com - Unlimited Downloads from direct links - No waiting time Our Strength - 3000+ Civil Engineering E-Books - 100+ Civil Engineering Software - 3000+ Civil Engineering Tutorials, Manuals and Videos - Civil Engineering Spreadsheet Library - AutoCAD Drawing Collection
  26. Dear All, I request to comment on the above query. Thanks, Kind Regards, Saikiran Gone.
  27. DOES ANYONE HAVE A HAND CALCULATIONS FOR CAST IN ANCHOR BOLTS DESIGN BY EURO CODE?
  28. Dear all,Please guide me in calculating the base shear as per euro code 8.In following a formula Sd(T1) value getting in term of (g), say 0.1g. Do I need to use Sd(T1) value as 0.1 or 0.1*9.81 =0.981 m/sec2 for base shear calculation in place if Sd(T1). Please suggest.Fb = Sd(T1).m.(Lamda)Eurocode ref image also attached for your ready reference. http://www.sefindia.org/forum/viewtopic.php?p=76915#76915Thanks,Regards,Saikiran Gone.
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