1.Structural Integrity: Retaining walls designed for earthquakes are built to withstand the dynamic forces generated during seismic events. They incorporate reinforcement and design features that enhance their strength and stability, reducing the risk of structural failure or collapse during an earthquake. This ensures the safety of people and property in…
Category: Earthquake
An axial compression check refers to the analysis and assessment of a columns&Inclined structural members resisting earthquake
An axial compression check refers to the analysis and assessment of columns&Inclined structural members resisting earthquake in which the factored axial compressive stress considering all seismic load Combinations shall be limited to 0.4fck (fck=characteristic Compressive strength of concrete ).The purpose of this check is to ensure that the member can…
Is PSHA (Probabilistic Seismic Hazard Analysis) reliable?
In the recent draft codes released by BIS on IS 1893 Part 1 & 2, The zone factor is hiked based on PSHA. When I was searching for whether such analysis gives accurate values, I got this reference. Mulargia, F., Stark, P.B., and Geller, R.J. (2017) “Why is Probabilistic Seismic…
𝐒𝐞𝐢𝐬𝐦𝐢𝐜 𝐝𝐞𝐬𝐢𝐠𝐧 // 𝐇𝐢𝐠𝐡-𝐫𝐢𝐬𝐞 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠𝐬
Seismic design of high-rise buildings is essential to ensure the safety and integrity of structures during earthquakes. ◾ ASCE 7-22 provides guidelines and requirements for seismic design, including load and strength requirements. ◾ Deflection in a building refers to the amount of displacement that occurs in the structure when it…
2nd-order analysis
P-DELTA analysis is a geometric non-linear 2nd-order analysis. P stands for the force acting on the body and delta means the horizontal displacement. It’s basically a destabilizing effect. It’s commonly needed in tall and slender structures, where second-order effects can be significant. It can identify potential stability issues, helping to…