佛山平胜大桥钢锚箱简化模型分析研究

自锚式悬索桥索梁锚固区域结构复杂,容易产生应力集中,研究锚固区域在索作用下的应力大小、分布是十分重要的。该文针对某市市内的自锚式悬索桥吊杆锚箱进行了足尺模型试验,利用了材料力学理论及ANSYS有限元进行简化模型的对比分析,进一步分析了索梁锚固区的应力状态、分布情况和传力途径,对自锚式悬索桥锚箱设计和施工具有一定指导意义。

Analysis and Study of Simplifying Model of Steel Anchor Box for Pingsheng Bridge in Foshan

The areal structure of cable beam anchorage for the self-anchorage suspension cable bridge is complicated and easily produces the stress centralization. It is important to study the stress size and distribution of the anchorage area under the cable action. In the light of the boom anchored box of the self-anchorage suspension cable bridge within a city, the article introduces the full-sized model test, carries out the contrasting analysis of the simplifying model by utilizing the material mechanics theory and ANSYS finite element, and further analyzes the stress status, distributing condition and actuating way of the cable beam anchorage area, which are some guiding meaning for the design and construction of the anchorage box of the self-anchorage suspension cable bridge.