Buildings with Torsional Irregularity

03-Analytical/modelling capabilities
Post Reply
juansa
Posts: 5
Joined: 04 Jul 2019, 17:56

Buildings with Torsional Irregularity

Post by juansa » 12 Jul 2019, 01:12

I am analyzing a 2 stories building according to ASCE 41-17 and nonlinear static analysis. It is a Category I building. Using the Immediate Occupancy (1-B) and the 5% @ 50 years spectrum all elements of the building check OK for rotational, shear and displacement. The building is OK according to the nonlinear results. I have a discussion with a colleague because he defends the anyway we have to check the building to see if it comply with the following regulation included in 7.3.1.2.3 (Limitations for the linear analysis). It is my understanding that we don't have to check it because all elements are OK after the nonlinear analysis.

User avatar
seismosoft
Posts: 605
Joined: 06 Jul 2007, 04:55

Re: Buildings with Torsional Irregularity

Post by seismosoft » 12 Jul 2019, 10:36

Section 7.3.1.2 describes the limitation in the use of the LSP and it is irrelevant to the nonlinear types of analysis NSP and NDP.
Even if there were failures in the nonlinear checks, you would not have to check 7.3.1.2. On the contrary however, one has to consider the limitations in the use of the NSP in section 7.3.2.1
Seismosoft Support

juansa
Posts: 5
Joined: 04 Jul 2019, 17:56

Re: Buildings with Torsional Irregularity

Post by juansa » 12 Jul 2019, 17:58

Thank you.

Post Reply