工字钢-张弦柱的研究与应用

STEEL I-BEAM RESEARCH AND APPLICATION OF COLUMN STRING

张弦结构一般指张弦梁结构,张弦梁系指用支撑杆连接受弯构件和抗拉构件而形成的自平衡体系。张弦梁常应用于一些超大跨结构中,而张弦柱的工程应用则相对较少。在建筑工程施工中,工字钢作为受弯构件被大量应用,旨在研究新的回顶支撑构件形式,通过对工字钢进行简单改造而成为张弦柱,使工字钢在不加大截面情况下成为承载力更高的受压构件,尝试将工程项目上大量闲置的工字钢利用率最大化。

Cable-supported structures is generally referred to beam string structure.Beam string system refers to a self balanced system formed by connecting flexural members and tensile members with support rods.Beam string structure is often used in some super span structures.However,the engineering application of the string column is less relatively.In the construction of building engineering,steel I–beams are widely used as flexural members.The purpose of this paper is to study a new form of jacking support members.Through the simple transformation of the I–beam,it becomes a column string,which makes the I-beam become a compression member with higher bearing capacity without increasing the section,and tries to maximize the utilization rate of a large number of idle I-beams in the project.