组合梁混凝土受拉开裂计算方法

Crack of Concrete due to Tensile Stress in Continuous Composite Beams

组合梁除了发生抗弯承载力、挠度变形和整体及局部失稳等可能的主要破坏形式之外 ,还可能发生混凝土翼缘板横向及纵向开裂。本文针对这种次要破坏情况的各种文献进行了综合分析和比较。对明确组合梁混凝土开裂机理的分析有一定的理论和实践指导意义。

Except for taking the failure forms of moment, deformation and instability as the main failure circumstances, composite beams have subordinate failure forms including the cases of longitudinal and transversal cracking in concrete flanges. In this paper, many articles concerning with this scopes are carefully picked up and intensively compared with the hope to make it clear that how it works when this two cases happpens and to make it helpful that how right decision can be reached to implement complicated structural design.