catenary action

The fire resistant capacity is enhanced a lot when considering the catenary action of the steel beam.

处于整体结构中的梁的破坏形态与单个构件的梁的破坏形态有较大差别，当考虑梁的悬链线效应时其抗火承载力明显提高。

When the beam undergoes a large deformation, compression force then quickly changes into tension force which supports the beam and reduces further deformation, that is to say, catenary action takes place.

钢梁进入大变形阶段后，轴向约束压力变为轴向约束拉力，轴向拉力有阻止钢梁自身进一步变形的作用，即发生了悬链线作用。

This paper investigates the large deflection behaviour of steel beams under fire conditions taking into consideration the effect of catenary action provided by the surrounding structures.

为了研究高温下钢梁的大变形性能，本文使用ABAQUS有限元程序建立了分析模型。

After the key column fails, the internal force is redistributed by the catenary action of the joints to prevent the progressive collapse of structures, while the joints are under the state of bending moment combined with tensional force.

结构体系中当关键柱破坏后，体系将通过节点的悬索作用实现内力的重新分配，防止结构出现连续倒塌，此时节点将承受弯矩和拉力的共同作用。