建筑膜材的材性试验研究  

EXPERIMENTAL STUDY ON MATERIAL PROPERITES OF STRUCTURAL FABRIC

作　　者：卫东[1] 王臣[1] 向阳 沈世钊[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090 [2]北京光翌空间膜公司,北京101300

出　　处：《空间结构》2002年第1期37-43,共7页Spatial Structures

基　　金：国家自然科学基金重大项目 (5989541 0 )

摘　　要：为深入了解膜材的力学性能 ,本文采用单轴拉伸试验对 PVDF1 0 0 2 T和PVDF1 2 0 2 T两种膜材进行了弹性常数测定。并将 PVDF1 2 0 2 T的张拉刚度单轴拉伸测试结果与所搜集到的国外双轴拉伸测试结果进行了比较 ,证明采用单轴拉伸试验进行膜材弹性常数测定是可行的。本文还对 PVDF1 0 0 2 T进行了 9小时的徐变试验测定并对测试结果进行了分析 。Elastic constants for two types of membrane fabric materials PVDF1002T and PVDF 1202T are determined through uniaxial tensile tests. The results for PVDF1202T are compared with those obtained from biaxial tensile tests, and it is shown to be feasible to adopt uniaxial tensile tests for the determination of elastic constants for the structural fabric In addition, 9 hour creep tests are carried out for PVDF1202T, and the test results show that creep has an important effect on the cutting analysis of membrane structures.

关 键 词：建筑膜材 复合材料 弹性常数 徐变 单轴拉伸实验 双轴拉伸试验 

分 类 号：TU35[建筑科学—结构工程]