基于找形分析的大尺度单层平面索网玻璃幕墙自平直施工方法

AUTOMATIC EMPLACEMENT CONSTRUCTION METHODS OF LARGE SINGLE-LAYER PLANE CABLE NET CURTAIN WALL BASED ON FORM-FINDING ANALYSIS

针对大尺度单层平面索网幕墙施工中常用的配重施工法存在的多种弊端,通过深入分析竖索在施工过程中的弹性变形规律,基于前期研究提出的改进非线性逆迭代面内找形方法,灵活运用配重施工方法的原理,结合现场可操作性,形成了一种适用于单层平面索网幕墙的自平直施工方法。该施工方法通过增加结构施工模拟分析,取消了配重,实现相同竣工效果,却节省了大量施工成本,减少了安全隐患。工程应用表明,自平直方法完全可以替代配重施工法,适用性更强、更经济、简单、安全,具有较强的可操作性和显著的优越性。

Counterweight construction method, which is commonly used in installation of a large single-layer plane cable net curtain wall, has lots of disadvantages. It is intended to present a new method to overcome these shortcomings. The elastic deformation in the construction process of the vertical cable is deeply analyzed. Based on the improved form-finding method with nonlinear inverse iteration that was proposed in preliminary study, an automatic emplacement construction method for single-layer plane cable net curtain wall is brought forward. The proposed method combines the principles and the fundamental purposes of the counterweight method, as well as the feasibility of the construction site. This construction simulation-based method without counterweight can achieve the same effect as the counterweight method, so as to save a lot of construction costs and reduce security risks. The practice applications show that the self-horizontal and self-vertical construction method can completely replace the counterweight construction method, which has strong feasibility and significant superiority in application because it is a more economic, safer and simpler method.