﻿ 二次设计钢楼梯的结构设计

# 二次设计钢楼梯的结构设计The Structural Design of the Steel Stair in Secondary Design

Abstract:
The steel stair is widely used in engineering practice and is usually designed and installed by professional construction company after the main structure of building was completed. As a typical space system, the steel stair’s analysis is quite complicated. As no special codes for design, it is usually designed as a beam structure under static load. In this paper, the static design method and dynamic design method are suggested. Firstly, the design load is discussed. The strength, the deformation and the stability should be analyzed by the space model. Secondly, the dynamic characteristic, such as the vibration frequency and the vertical peak acceleration should be restricted according to the passing condition of the stair.

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