摘要
基于钢筋混凝土压弯构件可能的截面应变分布,针对截面材料组成复杂、需要分区解决的钢筋混凝土压弯构件,提出了计算轴力不变的桥墩截面弯矩-曲率关系的逐级应变法。以考虑约束混凝土的矩形截面桥墩的弯矩-曲率关系计算为例,推导了相关计算公式,阐述了逐级应变法的计算过程。
Based on the possible strain distribution in the cross-section of compressive and flexural reinforced concrete members,an incremental strain method was proposed to calculate the cross-sectional moment-curvature relationship of bridge pier with constant axial force.This method can solve the relationship problems with complex material composition section,or sectional zoning needs.Taking the calculation of a rectangular section bridge pier considering confined concrete as an example,this research derived related calculation formulas and described the procedure of the proposed incremental strain method.
作者
赖伟
LAI Wei(Sichuan Institute of Building Research,Chengdu 610081,China)
出处
《四川建筑科学研究》
2023年第1期35-39,共5页
Sichuan Building Science
关键词
逐级应变法
桥墩
弯矩-曲率关系
约束混凝土
incremental strain method
bridge pier
moment-curvature relationship
confined concrete
