对两层钢筋混凝土纯框架及带有新型SIP填充墙板的框架结构进行足尺振动台试验，对比研究了结构及墙板的破坏过程和破坏模式，分析了新型SIP墙板对钢筋混凝土框架结构的周期、阻尼比、刚度、楼层加速度以及楼层位移的影响。研究结果表明：与裸框架相比，带有新型SIP填充墙板的框架结构每一层抗侧刚度提高了2.42倍，阻尼比提高了1.87倍且带SIP填充墙板框架结构的阻尼比为5.891%，大于通常在进行普通填充墙结构抗震设计时所采用的5%，说明SIP填充墙板比一般填充墙耗能能力强；结构的楼层位移模式呈剪切型变形特点，层间位移角小于规范限值；从弹性到塑性过程中，除了柱根和墙板上出现裂缝外，没有出现整体垮塌现象说明填充墙体与框架的连接措施可靠，可以在地震区推广使用。
Abstract
Full scale shaking table test on two layers of reinforced concrete frame without wallboard and with new SIP filling wall plate were conducted, in order to study the failure process and failure mode of reinforced concrete frame and wallboard and the influence on the cycle, damping ratio and stiffness of the reinforced concrete frame because of the addition of the new SIP wallboard. From the results, it is found that compared with reinforced concrete frame without wallboard, the lateral stiffness increases 2.42 times of each layer and the damping ratio increases1.87 times of the frame structure with new SIP filling wall plate. The damping ratio is 5.891%, more than 5%, and its energy dissipation ability is better than ordinary filler wall. The acceleration amplification coefficient of the structure decreases when the earthquake intensity increases and it increases when the floor height increases. The floor displacement mode of the structure belongs to shear deformation characteristics and the interlayer displacement angle is less than the standard limit. From elastic to plastic process, in addition to the root of the pillars and wall cracks, there is no overall collapse phenomenon. There is a reliable connection measures between the wallboard and the frame and the connection measures can be used widely in the earthquake zone.
关键词
SIP填充墙板 /
框架结构 /
振动台试验 /
动力特性 /
地震反应
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Key words
SIP filling wallboard /
frame structure /
shaking table test /
dynamic characteristics /
seismic response
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