鋼筋混凝土超高層建筑層間位移的模型試驗研究*
蔣利學 胡紹隆 忻鼎康 鄧景紋 貢春成 俞偉根
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蔣利學 胡紹隆 忻鼎康 鄧景紋 貢春成 （上海市建筑科學研究院 上海 200032）俞偉根 （江蘇省建筑科學研究院 南京 210008）
[提要] 通過11層框架一剪力墻平面截斷模型的靜力加載試驗，研究了原型為52層的鋼筋混凝土超高層建筑在正常使用狀態(tài)下的受力和變形，重點考察了層問位移與構件裂縫的關系，同時研究了豎向荷載及加強層對層間位移限值的影響。試驗結果表明，正常使用狀態(tài)下將鋼筋混凝土超高層建筑的層間位移角控制在1/500以內(nèi)時，其豎向構件不會開裂，框架梁、連梁與填充墻的裂縫均可以控制在允許范圍內(nèi)?，F(xiàn)行《高規(guī)》的層間位移限值可以放松。
[關鍵詞] 鋼筋混凝土 超高層建筑 層間位移
Through the statical loading test of an ll-story plane frame-shear wall model,the deformation properties under loading of its original 52-story reinforced concrete super high-rise building at serviceability limit state are studicd. The relationship between interstory drift and the cracks of concrete members is especially inspected, and the effects of vertical loading and strengthened story on the allowabte value of interstory drift are also studied. It is proved by the test results that the vertical members won't fracture and the cracks of frame beams, link beams and partition fitted walls can be controlled within their allowable values as long as the interstory drift of reinforced concrete super high-rise buildings is not beyond l/500 at serviceability limit state.The allowable value of interstory drift in the present code can be loosened.
Keywords: reinforced concrete; super high-rise building; interstory drift
