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: Earthquake
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…
Member behaviours are classified as flexural dominated and shear dominated.
Today let’s talk about how member behaviours are classified as flexural dominated and shear dominated. There is an term(beta) which is basically ratio of flexural stiffness to shear stiffness. Please refer the screenshot on the left for it. To simplify this ratio depends on poisson ratio, span/depth ratio and end…
Ductility is a structural design requirement
Ductility is a structural design requirement in most design codes. In steel reinforced concrete (RC) structures, ductility is defined as the ratio of post-yield deformation to yield deformation which usually comes from steel yield. Properly reinforced and dimensioned concrete members exhibit a good ductile behavior. Ductility is the ability of…