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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。
BFRP pull precast concrete sandwich wall insulation is a new type of non-load-bearing insulation wall panels, with the main structure of the upper line between the support, the lower point of the support connection, BFRP pull the knot in accordance with the oblique Set. In order to evaluate the stress and deformation performance of this kind of exterior wallboard under the action of out-of-plane loads such as wind load and horizontal earthquake, a five-foot quasi-static wall panel was adopted to study the external Wall bending out of plane performance. The experimental results show that the number and spacing of point supports at the bottom of exterior wall panels have a significant influence on the out-of-plane bending resistance and the recommended spacing of point supports. When the point support is set reasonably, the exterior panel has a good bearing Force, ductility and crack resistance. When there is a door and window opening, the corner of the wall opening tends to have oblique cracks, and the load level of the crack is much smaller than that of the opening board.