宽幅变截面连续箱梁底板纵向裂缝成因及对策

The generating reasons and countermeasures of longitudinal crack of wide range variable cross-section continuous box beam bottom plate

以某一宽幅桥2号块底板纵向裂缝为例,综合分析产生裂缝的各方面原因,用ANSYS软件进行了数值模拟,从模拟结果来看,比较准确的反映了实际工程情况,最后针对宽幅桥施工过程中如何减少收缩裂缝的产生提出了合理的建议。

With a wide range bridge No.2 block bottom plate longitudinal crack as example,analyzed various aspects reasons comprehensively,the numerical simulation was carried with ANSYS software.From simulation results,it reflected practical engineering situation more accurate.At last,the proper suggestions about how to reduce shrinkage crack generation against to wide range bridge construction.