建筑用铅芯橡胶隔震支座温度性能研究

英文篇名：Temperature properties of lead rubber bearings for building
中文刊名：世界地震工程
英文刊名：World Information On Earthquake Engineering
作者：刘文光 ; 杨巧荣 ; 周福霖
英文作者：LIU Wenguang1 ; 2 ; YANG Qiaorong2 ; ZHOU Fulin2(1.College of Civil and Architecture Engineering ; Beijing Polytechnic University ; Beijing 100022 ; China ; 2.Earthquake Engineering Research and Test Center ; Guangzhou University ; Guangzhou 510405 ; China)
中文关键词：铅芯橡胶隔震支座 ; 温度 ; 老化
英文关键词：lead rubber bearings ; temperature ; aging
出版日期：2003-06-20
机构：北京工业大学建筑工程学院,广州大学地震工程研究与试验中心,广州大学地震工程研究与试验中心北京100022,广州大学地震工程研究与试验中心,广东,广州510405 ,广东,广州510405 ,广东,广州510405
年：2003
期：02
出版单位：世界地震工程

摘要

详细研究了建筑隔震结构中铅芯橡胶隔震支座的温度特性。内容包括三个方面:首先是一定温度条件下进行的温度相关性试验,温度范围由-20℃至40℃;其次进行了高温燃烧并经冷却后的基本性能及界限性能试验;最后研究完成了恒温100℃状态下老化185小时和240小时的长期性能试验。在试验结果的基础上,提出了支座屈服后刚度及屈服荷载的温度修正方程。
The temperature properties of lead rubber bearings used in isolated buildings are studied in the paper. Firstly, the temperature dependence with temperature from 20℃ to 40℃ are tested for grasping the characteristics of the yield stiffness and damping of the isolator. Then a fireproof test is performed as a similar engineering condition according to the standards published in China recently. Finally, two aging tests are completed under the condition of the specification and the rubber material test results in order to compare to original mechanical properties when rubber bearings have been used for 60 years. The temperature modified formulas of both yield stiffness and yield load for the lead rubber bearing are provided in the paper based on the test results.

引文

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