首页> 外文期刊>Engineering Structures >Full-scale tests of aluminium mullion couples in unitized facades under wind actions
【24h】

Full-scale tests of aluminium mullion couples in unitized facades under wind actions

机译:在风动作下的单调立面中的铝竖置耦合的全规模测试

获取原文
获取原文并翻译 | 示例

摘要

Unitized facade systems made of aluminium frame and glass infills are widely used, particularly in high-rise buildings. The vertical load bearing member of the aluminium frame is a mullion couple (or split mullion) made of thin-walled male and female mullions. The main function of the mullion couple is to transfer the lateral wind load on the glass panes to the main structural frame. During negative wind action (or suction), the male and female mullions lean on each other, and may achieve a capacity higher than the sum of their individual moment capacities. Under positive wind action (or pressure), the glass panes are assumed to provide full lateral restraint to the compression flanges of mullions, which is questionable. In addition, clips are sometimes used to increase the capacities of mullion couples without any evidence. Therefore, currently used mullion design methods could result in either conservative or unsafe designs. This study investigates the structural behaviour and capacity of mullion couples through full-scale wind simulation tests of a real facade assembly made of two unitized facade panels with and without clips under both negative and positive wind actions. This paper presents the full-scale test results and compares them with the current design rule predictions. Based on the comparisons, suitable conclusions and recommendations are given for the structural design of mullion couples under wind actions. Overall, this study has significantly advanced the current knowledge and understanding of the structural behaviour and capacity of unitized facade mullion couples subject to wind actions.
机译:由铝框架和玻璃填充物制成的单元化立面系统被广泛使用,特别是在高层建筑中。铝框架的垂直承载构件是由薄壁较薄的雄性和女性竖液制成的竖载耦合(或分裂竖母)。竖振耦合的主要功能是将玻璃窗上的横向风负载转移到主结构框架。在负风动作(或抽吸)期间,雄性和母竖液彼此倾斜,并且可以达到高于其各个时刻容量的总和的能力。在正风动作(或压力)下,假设玻璃窗格向竖别的压缩凸缘提供完整的横向束缚,这是可疑的。此外,剪辑有时用来增加举重伴侣的能力,没有任何证据。因此,目前使用的Mullion设计方法可能导致保守或不安全的设计。本研究通过全面的外墙组件的全尺寸风仿真测试调查了举重耦合的结构行为和能力,其由两个单元化的外墙板制成的具有和没有夹子的两个单元化的外立板组件,在负面和正风动作下。本文介绍了全规模的测试结果,并将其与当前的设计规则预测进行比较。根据比较,给予了风力行动下仔细夫妇的结构设计的合适结论和建议。总体而言,本研究大大提高了目前的知识和对由风力行动进行的有组织门面举耦合的结构行为和能力的理解。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号