Seismic Response Coefficient in Every District of Steel Building from Code of Public Works and Town & Country Planning (DPT 1301/1302-61)

Abstract

This article shows the guidelines for calculate the seismic response coefficient (Cs) by DPT. 1301/1302-61, equivalent lateral force procedure of all districts nationwide of steel buildings for being basic information or references by specifying information are that not over 2 storey building calculate at 6 meters height and 3 storey building or higher calculate at 50 meters height. The building risk categories are low, normal, high and very high. Building systems are steel moment resisting frame include ordinary steel moment frame, intermediate steel moment frame and special steel moment frame. The results are the Cs value of 926 districts, seismic design category, prohibit or available building systems. The overview of the area that have to seismic design in each region consistent to the existing laws, Ministerial Regulation B.E.2550. It is a guideline to improve the laws or related code and standard to be easy to use in the future.