双面钢板钢筋混凝土梁界限破坏弯矩理论计算分析  

The theoretical calculation and analysis on limit bending moment of double-sided steel plate reinforced concrete beam

作　　者：牛小玲[1] 郑全平[1] 王晓峰[1] 刘国军[1] 曹海[1] 

机构地区：[1]总参工程兵科研三所,洛阳471023

出　　处：《防护工程》2013年第6期47-51,共5页Protective Engineering

摘　　要：为了给双面钢板钢筋混凝土梁合理配筋和抗弯承载力设计计算提供理论依据和参考，基于梁的平截面假定，并忽略受拉区混凝土抗拉强度作用，提出了双面钢板钢筋混凝土梁抗弯承载力的理论分析方法。分析了梁界限破坏时梁截面压区混凝土与拉区钢板受力和破坏状态；推导了界限破坏时的配筋理论计算公式和弯矩理论计算公式。In order to provide theoretical basis and reference for the design calculation of reasonable reinforcement and anti-bending capacity of double-sided steel plate RC concrete beams, based on the assumption of plane section of beam, and ignoring the tensile strength of concrete, the theoretical analysis method of anti-bending capacity of double plate reinforced concrete beams is given;the analysis of the force and damage state of concrete in the tensile zone and the steel plate in the pressure zone on the cross-section of RC beam with limit failure is made ; the theoreti- cal calculation formulas of reinforcement and bending moment of RC beam with limit failure are derived.

关 键 词：钢筋混凝土梁 双面钢板加固 界限弯矩 弹性极限弯矩 塑性极限弯矩 

分 类 号：TU375.1[建筑科学—结构工程]