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1·The author explores a new way of erecting molding board in the construction of job-placed reinforced concrete cockle stairs.

本文就现浇钢筋混凝土螺旋楼梯施工提出一种模板支设方法。

2·Based on an engineering case, a brief discussion is made of the structure feature of the cockle stairs and the relevant calculation principle for it, with a flowchart for the calculation provided.

针对螺旋楼梯的特点及计算原理，结合工程实例，论述螺旋楼梯的结构计算流程。