超大型预制桥墩吊装过程数值计算

摘要

Based on the lifting option of ultra large precast abutments of a cross-sea project, the finite element software ANSYS was used to build a numerical model of ultra large precast abutments. The lifting process was simulated in the field of gravity, which deduced the stress on the abutment in the lifting process, showed the merit and demerit of the lifting option, and analyzed the risky stress zone in the lifting process of abutments and hoisting members. In addition, the optimized suggestions were proposed.%以某跨海工程超大型预制桥墩吊装方案为例，基于有限元分析软件ANSYS建立超大型预制桥墩的数值模型，施加重力场模拟吊装过程，得到了吊装过程中桥墩的受力状态，评定了吊装方案的优劣。针对吊装过程中桥墩及吊装件较危险的受力区域进行分析，提出了优化建议。