斜拉桥索梁销铰连接锚固区空间应力分析

索梁锚固区是斜拉桥受力的关键部位，受力集中且复杂，一般的平面分析很难反映实际的应力分布,简要介绍了舟山桃天门大桥斜拉索钢箱梁销铰连接模型试验和有限元数值分析，对箱梁各构件的应力大小和分布进行了研究．结果表明，斜拉索钢箱梁通过销铰连接，不会在连接区附近箱梁的顶板、腹板、底板等构件上引起明显的应力集中，不必对箱梁锚固区进行额外的加强，销铰连接是一种可靠而又简洁的斜拉桥索梁连接方式．

Spatial Stress Analysis in Anchorage Zone in Cable-Stayed Steel Box Girder

The anchorage of a cable with a beam is the key part of the cable-stayed bridge. The behavior of the anchorage is intensive and complicated.It is hard to get the actual stress status from the general plane analysis. The model test of Taoyaomen Bridge is presented in this paper, and the distribution of parts is studied. The result of the model test is compared with that of finite element analysis and some useful conclusions are obtained.