指出传力杆模型对模态频率和主振型有直接影响，动力分析中应当考虑接缝的剪力传递和弯矩传递。
The transfer of shearing and moment must be considered in dynamic analysis because the model of dowel bar affects the modal frequency and modal shape directly.
应力平衡法以主梁弯矩合理为目标，通过主梁上下缘应力平衡来求得拉索索力。
The stress balance method aims at the girders' reasonable moment, getting the cable forces by balancing the stress in girder's upper and lower margin.
结论吊重起升加速度对起重机动载荷的影响较大，特别对主臂内的动弯矩的激励更加明显。
The influence of load hoisting acceleration on dynamic forces is obvious, especially on dynamic bending moment of the main boom.
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