【作者】 杨晓杰； 耿悦； 孙建运； 王玉银；

【Author】 Yang Xiaojie;Geng Yue;Sun JianYun;Wang Yuyin;China State Construction Engrg. Corp. LTD. Technical Center;Harbin Institute of Technology;Key Lab of Structures Dynamic Behavior and Control (Harbin Institute of Technology),Ministry of Education;

【机构】 中国建筑股份有限公司技术中心结构工程研究所； 哈尔滨工业大学土木工程学院； 哈尔滨工业大学结构工程灾变与控制教育部重点实验室；

【摘要】 通过对比国内外规范中关于外围护墙体抗冲击性能的评价方法与评价标准,确定了适用于轻钢龙骨外围护墙体的抗冲击性能评价标准与试验方法。遵循该试验方法,进行6片腹板开孔轻钢龙骨墙体在冲击荷载作用下的抗冲击性能试验,验证墙体抗冲击性能是否满足规范要求。考虑的参数包括:覆面形式、龙骨腹板高度。分析墙体在冲击荷载作用下的破坏模式,同时基于试验结果提出改善墙体抗冲击性能的方法。分析发现,采用欧洲规范EN14019:2004中关于外围护墙体的抗冲击性能的评价方法与评价标准评价轻钢龙骨外围护墙体的抗冲击性能较为合理。采用市场上的纸面石膏板与耐火石膏板作覆面的轻钢龙骨外围护墙体不能满足抗冲击性能要求。当采用腹板开孔的轻钢龙骨墙体作外围护墙体时,龙骨两侧可采用纤维增强水泥压力板作覆面,以满足墙体的抗冲击性能要求。更多还原

【Abstract】 Different available codes were compared to find the proper method to evaluate the impact resistance of enclosing walls with light-gauge steel studs. According to the specified experimental method, 6 wall elements with slotted light-gauge steel studs were tested to failure under impact loading. Considered parameters include the type of the board sheets, and the height of the web for steel studs. The measures to improve the impact resistance of the enclosing walls with light-gauge steel studs were brought up. It was concluded that the Eurocode EN14019:2004 is proper to evaluate the impact resistance of enclosing walls with light-gauge steel studs. Neither the paper-based gypsum board nor fire resistance gypsum board that available from the market can fulfil the requirement for the impact resistance of enclosing walls. The fibre reinforced cement board can be used in the enclosing walls to ensure their impact resistance capacity.更多还原