In my model I analyze and design a G+8 RCC Structure, and the column is designed for only the first load case even though other load combinations give maximum axial force and moments. I attached the screenshots of output file below.

Hi, Based on NBCC 2015 4.1.8.11 4) single storey buildings with steel or wood deck as diaphragms can have a higher fundamental period compared to 4.1.8.11 3) as seen in the snap below. However, in the current RAM frame the Ta is only based on clause…

I'm getting some conflicting graphical information and output. I'm designing a special concentrically braced frame (SCBF) with wide flange beams and columns and HSS braces. The frame column webs are oriented in the plane of the frame and all beam and…

Hi. I am working on a steel structure and i have some issues with the seismic loads. That are the flexure MZ diagrams for the pure seismic load case in X direction (longitudinal). It caught my attention the results for the beam element marked in…

Hi, how to check soft storey using Eurocode in Staad.Pro (Response Spectrum)

Seismic load combinations are: 1.2D + 1.0E + L + 0.2S 0.9D + 1.0E + 1.6H While calculating the E loading, shall we do it for 1.0D + 1.0L OR based on the factors indicated in the mentioned combinations: 1.2D + 1.0L 0.9D **It is known that no…

I have a large warehouse type building that has a heavy bridge crane in it. The bridge itself runs along two stationary rails at each end of the bridge. The crane moves along the length of the bridge. I add the load as a transportation load to account…

I am using the seismic load generator for the first time. Can you please verify that I have applied it correctly? This is a viaduct with a long through-truss span. CRT ped LL straight PRATT TRUSS w MBTA ELEV.std

Dear All, I am trying to consider vertical component of seismic load using National building code of Canada NBCC. I assume 70% of acceleration is vertical direction (see below), but I am getting errors. I would appreciate if you tell me where is the…

I am looking at the requirements of the beam at the second story of the chevron BRBF. Why is RAM Frame checking Beam ductility using the Diagonal Brace requirements of AISC 341-16? The output clearly says it does not check the axial demand in the beam…

Good day, I would like to kindly query a few observations I have gathered from a shear wall model I am currently undertaking. The structure being modelled is an rectilinear shear wall system which comprises 4 walls, similar to an elevator core in…

Hello.sir i m comparative study of elevated water tank resting on sloping ground & take slope varies from 0 to upto 30degree..I have dout in staad model.. actually I already model but my result not getting correct..means as per our study base shear will…

Hi, I wanted to clarify the output for the seismic provisions joint code check in regards to continuity plate. I am unclear of what the 0.66" under "Tf Prov (in)" is indicating. Do I need a 0.66" thick continuity plate? Also, how is RAM arriving at…

When (-)FY is inserted, it works without any problem. By the way, in the case of (+) FY load, is the FY value of DL reaction force and seismic load different?

sir i want to konw can i do performance based seismic design in staad pro. and pushover analysis.

for Seismic design category A structure, 10% of story dead load is required to consider (refer 11.7.2 of ASCE7-05). Does STAAD apply 1% of story dead load as Seismic load or it will calculate as per prescribed procedure based on chapter 12~15 of ASCE7…

Hi! I'm a plan reviewer with the city of San Jose. I'm reviewing a new hockey arena and I have some questions about how RAM processes automated ELF procedures and seismic drifts for structures that have collector columns. It's a BRB building, but thin…

Dear All, I hope you are all doing well. I am in the middle of a crucial assignment for which I am doing Response Spectrum analysis using custom spectrum. Base Shear and load sign.txt Seismic Spectrum.xlsx Client has provided the Ct and x values…

Dear all, Error found during the seismic definition analysis. Found the error "no unsupported masses found - check densities" . Kindly help me out from this . COLLEGE PROKECT.STD

Hi, I have a doubt in STAADP.ro CE about how can I implement the factor Bheta 1 and Bheta 2 in Steel Design (Appendix 8 AISC 360-16). I know that it possible to perform P-Delta Analysis, but for seismic design with modal analysis/response spectra, I…

Hello, Currently, I am using STAAD pro Connect edition's latest version. Following are question mainly targeting of RCC and Steel structure design in STAAD Pro and in other Bentley tools per Eurocode with German N ational Annex (NA). 1. Can…

How does RAM calculate the period for a building that has separated diaphragms. Attached is an image of two towers that are connected on the bottom three floors and then are separate the rest of the way up.

hello i am student working on project Rc frame subjected to seismic forces (ibc) and wind also but i couldn't because most of tutorials are on steel frames and i need to work in rc frames can any one provide some examples also i dont understand…

Hi all, 1) Is there a way to set the ground level in STAAD Pro or is the y=0 level the permanent ground level? This is for the purpose of computing the seismic forces because, from what I know, distribution of the computed base shear per level of a structure…

Dear Members, can u please guide me how to do seismic analysis in staad for the portal type structure(Integral). span is for 24.0 portal-model .std m and here am attaching a model for 10.0m