框架梁斜裂缝检测分析及加固建议

Detection and analysis of oblique cracks in frame beams and suggestions for reinforcement

某新建框架结构主体完工后,框架梁产生了斜裂缝,为了明确梁开裂原因及其是否对房屋结构安全造成了影响,业主委托有资质的检测单位对该框架梁开裂进行了检测鉴定。通过对该梁进行检测及分析开裂原因,提出了对参与斜截面抗剪的斜向布置箍筋进行数量折减,建议了针对斜向布置箍筋的梁斜截面抗剪承载力计算公式,给出了检测鉴定结论和加固处理意见。

After the completion of the main body of a new frame structure,cracks occurred in the frame beam.In order to clarify the causes of cracking of the beam and whether it has an impact on the safety of the building structure,the owner consigned a qualified testing unit to detect and identify the cracking of the frame structure beam.Through analyzing the beams detection and cracking reason,this paper proposed to participate in the oblique section shear oblique layout stirrup quantity reduction,suggested that the beam inclined section for oblique layout stirrup formula of shear,and gave the testing result and the opinion of reinforcement.