Study on Seismic Performance of Concrete Frame-Bent Structure of Power Plant Main Building

A power plant is a kind of critical infrastructure. The single-span, concrete, frame-bent structure - called a "single frame structure" - is often used in the main building because of the equipment layout optimized design. The Kobe, Chi-Chi, and Wenchuan earthquakes show that the single-span frames are easily damaged. So, the "Code for Seismic Design of Buildings" (GB50011) and the electric industry codes make strict rules for the use of single-frame structures. In order to distinguish the similarities and differences between a "single frame structure" in the main power plant and a conventional single-frame structure, a dynamic elastic-plastic time-history analysis is carried out based on the characteristics of the main building structure in power plant. The scope of application is given for this kind of structure and the design guide specifically complies with the engineering design.