A Structural Engineers Practical Guide To Seismic Design: Fundamental Period You can determine the approximate fundamental period of a structure from ASCE 7 Eqs. 12.8-7, 12.8-8, or 12.8-9. The type of SFRS you have will determine what equation you use. The approximate period helps determine initial loading. Your computer model…
Category: E-tabs
What is the difference between membrane and shell in ETABS?
Not just ETABS. This is a global differentiation in all the finite element software. Membrane elements are used to represent only inplane stiffness of members. It acts like the bedsheet on your bed. The bedsheet does not have any kind of bending stiffness and so it bends without any resistance.…
An ETABS file of a 40 story tower was shared with the problem.
An ETABS file of a 40 story tower was shared with the problem. The advance solver cannot run P Delta, the standard solver cannot complete the run for more than 48 hours run time…modal results were not seen…. The engineer tried to run the analysis for more than a week…also…
STABILITY OF STRUCTURE
A structure is called stable if for any given force it has a load path to ground it to support(foundation) without yielding an infinite deformation. [1] Stability is a general term that is referred for lateral forces and the stability system is referred to as a lateral load resisting system.…
Shear wall dual system
few important points in this image – There is no shear wall along the other orthogonal direction. Then, how the base shear will be carried by the shear walls in that direction? If this is a dual system, the shear walls need to carry most of the base shears and…