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对日照某沿街楼混凝土框架短柱出现斜向贯通裂缝进行了现场勘查,利用回弹法和钻芯法检测评定了混凝土短柱强度。并取横向一榀框架为结构计算单元,将车库楼盖温度变形作用附加于横向框架,并以是否考虑回填土的侧向约束的影响,利用SAP2000结构软件分析两种情况下的结构内力,最终给出了混凝土短柱斜裂缝的出现原因,并对受损的混凝土柱给出了相应的加固修复对策,可为同类工程检测鉴定与加固处理提供依据。
On the spot of Rizhao concrete block along the street, cracks were found obliquely, and the strength of concrete short column was evaluated by rebound method and core drilling method. And taking the horizontal frame as the structural calculation unit, the temperature deformation of the garage floor is added to the transverse frame. Based on whether the lateral constraint of the backfill soil is taken into account, SAP2000 structural software is used to analyze the structural internal forces in both cases. Finally, The causes of oblique cracks in concrete short columns are given, and the corresponding reinforcement and repair measures are given to the damaged concrete columns, which can provide the basis for the detection, identification and reinforcement of similar projects.