Taking the new terminal project in Zhongchuan airport as an example,according to the project actual situation and steel temporary bridge design standards,this paper made scheme design to construction used temporary steel bridge,and created appropriate calculation model, using finite element software made stress analysis and calculation,through the calculation results,pointed out that each main stress component strength and stiffness of steel bridge meet the specification requirements.%以中川机场新建航站楼工程为例，根据工程实际情况和钢便桥设计标准，对施工用临时钢便桥进行了方案设计，并创建了合适的计算模型，采用有限元软件进行了受力分析计算，通过计算结果，指出钢便桥各主要受力构件强度和刚度均满足相关规范要求。
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