杭州湾跨海大桥钢箱梁耳板模型试验研究

Model Test Study of Ear Plate of Steel Box Girder of Hangzhou Bay Sea-Crossing Bridge

对杭州湾跨海大桥钢箱梁耳板式索梁锚固结构进行了1∶3缩尺模型试验,并通过模型试验和仿真分析相结合,研究大跨度钢箱梁斜拉桥中耳板式索梁锚固结构的应力分布、传力途径、安全性能和使用性能。研究结果表明,该桥的耳板式索梁锚固结构传力可靠,构造合理,是较为理想的索梁锚固形式。

The 1 ：3 scaled-down model test is carried out for the ear plate type cable and girder anchor structure of the steel box girder of Hangzhou Bay Sea-Crossing Bridge, and further, through the model test and simulation analysis, the type of the anchor structure of steel box girder of long span cable-stayed bridge is studied from aspect of stress distribution, force transformation path, safety and workability of the structure. The results of the test and study indicate that the force transformation of the anchor structure of the Hangzhou Bay Sea-Crossing Bridge is reliable, the structure formation is reasonable and the structure is an ideal type of anchor of cable and girder.