- 摘 要
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（1 重慶大學(xué)山地城鎮(zhèn)建設(shè)與新技術(shù)教育部重點實驗室， 重慶 400045；2 重慶大學(xué)土木工程學(xué)院， 重慶 400045）
［摘要］全螺紋錨栓與半螺紋錨栓單錨剪切試驗結(jié)果表明，半螺紋錨栓的剪切剛度明顯高于全螺紋錨栓，對于可判定為只承擔(dān)剪力的錨栓，建議采用半螺紋錨栓。直接剪切型錨栓群錨、普通安裝半螺紋群錨和普通安裝全螺紋群錨的剪切試驗結(jié)果表明，直接剪切型錨栓群錨剪切剛度顯著高于對應(yīng)的普通安裝半螺紋群錨和普通安裝全螺紋群錨，在用于固定加固鋼板對混凝土構(gòu)件進行承載力加固時，有利于保證加固鋼板與被加固構(gòu)件之間的協(xié)同受力。
［關(guān)鍵詞］群錨； 受剪承載力； 普通錨栓； 直接剪切型錨栓； 剪切剛度
中圖分類號：TU375文獻標(biāo)識碼：A文章編號：1002-848X(2020)11-0076-04
Experimental study on shear performance of direct-shear anchor group
QUAN Xueyou1,2, LUO Chen1,2, ZHANG Xinxiang1,2, LIU Bao1,2
(1 Key Laboratory of New Technology for Construction of Cities in Mountain Area， Chongqing University， Chongqing 400045， China; 2 School of Civil Engineering， Chongqing University， Chongqing 400045， China)
Abstract:The shear test results of single full-screw bonded anchors (FSBAs) and half-screw bonded anchors (HSBAs) show that the shear stiffness of the HSBAs is significantly higher than that of the FSBAs. For the anchor bolt that can be judged as bearing direct shear, HSBAs is recommended. The shear test results of direct-shear type anchor bolt group, HSBAs and FSBAs show that the shear rigidity of direct shear type anchor bolt group is significantly higher than that of the corresponding HSBAs and FSBAs. When used to fix the steel plate to strengthen the bearing capacity of concrete components, it is conducive to ensure the mechanical compatibility between steel plate and the member to be strengthened.
Keywords:anchors group; shear capacity; ordinary anchor bolt; direct shear anchor bolt; shear rigidity
作者簡介：全學(xué)友，博士，教授，Email: quanxueyou@163.com。
