Aseismic performance evaluation of existing concrete piers based on effectiveness assessment of reinforcement construction details
Sun Haipeng1 Zhuo Weidong2,3
1. Jinan Civil Air Defense Security Emergency Rescue Center, Jinan 250014, China;
2. College of Civil Engineering, Fuzhou University, Fuzhou 350116, China;
3. Fujian Provincial Key Lab on Multi-Disasters Prevention and Mitigation in Civil Engineering, Fuzhou University, Fuzhou 350116, China
Abstract： A method is proposed to evaluate the aseismic performance of existing concrete piers based on the effectiveness assessment of reinforcement construction details. The influence of reinforcement construction details on the aseismic performance of the piers are discussed from four aspects: the longitudinal reinforcement and stirrup anchorage structure, the stirrups to prevent buckling of longitudinal reinforcement between two stirrups, the stirrups to prevent buckling of longitudinal reinforcement through stirrups, and the stirrups to confine core concrete. By the proposed method, the shear capacity, flexural capacity, and ductile deformation capacity can be calculated based on the effectiveness assessment of structural details, and thus the seismic performance of bridge piers can be assessed. The performance of stirrups, longitudinal reinforcement, concrete, and other materials can be predicted when the earthquake occur. The weak parts with bad seismic performance in the member can be shown, which can provide reference for the strengthening of piers.
孙海朋 卓卫东. 基于配筋构造细节有效性评估的既有钢筋混凝土桥墩抗震性能评估方法[J]. 土木工程学报, 2016, 49(10): 64-70.
Sun Haipeng Zhuo Weidong. Aseismic performance evaluation of existing concrete piers based on effectiveness assessment of reinforcement construction details. 土木工程学报, 2016, 49(10): 64-70.
