单箱单室变截面连续箱梁病害分析及理论计算

摘要

结合某桥预应力变截面连续桥梁实例，对箱梁顶板出现的纵向裂缝及底板顶面出现的横向裂缝进行了分析探讨，并结合理论计算模拟了桥梁运营过程中各工况下桥梁的受力状态，为桥梁的安全运营提供了保障。%Combining with the prestressed variable cross-section beam of some bridge, the paper explores the longitude cracks at the box girder roofs and lateral cracks on bottom roofs, and simulates the stressed status of the bridges under all kinds of conditions in the bridge operation process, so as to provide some guarantee for the safe operation of bridges.