刘才华, 蒋庆, 种迅, 完海鹰, 朱惠锋, 李浩然, 王礼平, 郝祝林. BFRP拉结件预制混凝土夹心保温外墙板抗弯性能试验研究[J]. 工程力学, 2017, 34(增刊): 111-115. DOI: 10.6052/j.issn.1000-4750.2016.03.S015
引用本文: 刘才华, 蒋庆, 种迅, 完海鹰, 朱惠锋, 李浩然, 王礼平, 郝祝林. BFRP拉结件预制混凝土夹心保温外墙板抗弯性能试验研究[J]. 工程力学, 2017, 34(增刊): 111-115. DOI: 10.6052/j.issn.1000-4750.2016.03.S015
LIU Cai-hua, JIANG Qing, CHONG Xun, WAN Hai-ying, ZHU Hui-feng, LI Hao-ran, WANG Li-ping, HAO Zhu-lin. EXPERIMENTAL STUDY ON FLEXURAL BEHAVIOR OF PRECAST CONCRETE SANDWICH FACADE PANELS WITH BFRP CONNECTORS[J]. Engineering Mechanics, 2017, 34(增刊): 111-115. DOI: 10.6052/j.issn.1000-4750.2016.03.S015
Citation: LIU Cai-hua, JIANG Qing, CHONG Xun, WAN Hai-ying, ZHU Hui-feng, LI Hao-ran, WANG Li-ping, HAO Zhu-lin. EXPERIMENTAL STUDY ON FLEXURAL BEHAVIOR OF PRECAST CONCRETE SANDWICH FACADE PANELS WITH BFRP CONNECTORS[J]. Engineering Mechanics, 2017, 34(增刊): 111-115. DOI: 10.6052/j.issn.1000-4750.2016.03.S015

BFRP拉结件预制混凝土夹心保温外墙板抗弯性能试验研究

EXPERIMENTAL STUDY ON FLEXURAL BEHAVIOR OF PRECAST CONCRETE SANDWICH FACADE PANELS WITH BFRP CONNECTORS

  • 摘要: BFRP拉结件预制混凝土夹心保温外墙板是一种新型的非承重保温外墙板,其与主体结构之间采用上部线支撑、下部点支撑的连接方式,BFRP拉结件按照斜向八字形设置。为了评估该类外墙板在风荷载、水平地震作用等平面外荷载作用下的受力和变形性能,以合肥某工程项目为背景,通过五片足尺外墙板拟静力试验,以研究外墙板的平面外抗弯性能。试验研究结果表明:外墙板底部点支撑的个数和间距对其平面外抗弯性能影响显著,并提出了点支撑建议间距;当点支撑设置合理时,该外墙板具有较好的承载力、延性和抗裂性能;当带有门窗洞口时,其墙板洞口角部易出现斜向裂缝,出现裂缝的荷载级别远小于不开洞外墙板。

     

    Abstract: Precast concrete sandwich facade panels with BFRP connectors are a kind of non-load bearing facade panels, which are attached to main structures with linear braces on top and point braces at the bottom. BFRP connectors are arranged obliquely. In order to assess the structural behavior of the facade panel subjected to wind and seismic loads, a pseudo-static test of five full-scale facade panels was carried out to investigate their out of plane flexural behavior.The test is based on an engineering project in Hefei. The test results show that the number of linear braces and their interval have a significant impact on the flexural behavior. A recommended interval is proposed. If the facade panel have a rational arrangement of point braces, it will have better load-bearing capacity, ductility and crack resistance. Facade panels with structural openings for doors and windows exhibits cracks in the corners of the structural openings. The cracking load of this kind of panels is much smaller than that of panels without structural openings.

     

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