单层平面索网玻璃幕墙索预拉力评估  

Evaluation of Pretension of Glass Curtain Wall Cable in Single Plane Cable Mesh

作　　者：杨浩 YANG Hao(Wall Tech-Care Building Technology(Shanghai)Company Ltd.,Shanghai 201108,China)

机构地区：[1]墙管家建筑科技(上海)有限公司,上海201108

出　　处：《上海建材》2023年第2期63-69,共7页Shanghai Building Materials

摘　　要：单层平面索网是指由单层横向和纵向钢索作为结构受力构件来支承玻璃面板的点支承玻璃幕墙。由于单层平面索网属于柔性结构,不能按刚性结构分析其内力,从而无法得到实际的预拉力值。以某在役单层平面索网的预拉力检测评估为案例,提出在役的单层平面索网幕墙实际预拉力的评估方法,分析影响评估精度的几个因素,并提出相应的解决方法。采用案例中索网的纵索和横索实际检测索力与按非线性结构进行的有限元计算得到的索力的理论值进行比较,评估索网预拉力损失,进行2种数值间误差分析,并据此提出改进建议。A plane single-layer cable net belongs to a flexible structure which is different from that of a rigid structure and its pre-tension is not available and cannot be compared with the designed pre-tension directly.This paper has advised a method to appraise the actual pre-tension of serviced plane single-layer cable net based on a case study.The factors which affect the accuracy of appraisal were analyzed and the solutions were advised.It advises comparing the measured cable forces with the ones which are available from the nonlinear analysis as the way of the appraisal of actual pre-tensions,in addition,the deviation between the measured cable forces and the calculated forces has been analyzed and the improvement advice has been proposed.

关 键 词：玻璃幕墙 索网 钢索 索力计算 索预拉力 

分 类 号：TU381[建筑科学—结构工程]