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(1 鄭州大學(xué)土木工程博士后流動(dòng)站，鄭州 450001; 2 同濟(jì)大學(xué)建筑工程系，上海 200092; 3 同濟(jì)大學(xué)建筑設(shè)計(jì)研究院，上海 200092;4 中建三局股份鋼結(jié)構(gòu)公司，深圳 518040)
［摘要］依據(jù)有關(guān)規(guī)范和工程實(shí)踐，提出了對(duì)高強(qiáng)螺栓直接施加預(yù)拉力的思路和方法，研制了高強(qiáng)螺栓液壓預(yù)拉力張拉器，解決了扭矩系數(shù)不合規(guī)范要求的高強(qiáng)螺栓預(yù)拉力的施加及質(zhì)量驗(yàn)收問題。工程實(shí)踐表明，新工藝具有良好的應(yīng)用效果和推廣價(jià)值。
［關(guān)鍵詞］高強(qiáng)螺栓; 熱浸鍍鋅; 預(yù)拉力; 預(yù)張拉施工工藝; 液壓張拉器
Study on technology of exerting pretension strength on high-strength bolts in steel structures
Zhang Meng1,2, Ma Renle2, Lü Zhaohua3, Liang Feng3, Yin Changhong4(1 Postdoctoral Station of Civil Engineering, Zhengzhou University, Zhengzhou  450001, China; 2 Department of Building Engineering, Tongji University, Shanghai 200092, China; 3 The Architectural Design & Research Institute of Tongji University, Shanghai 200092, China; 4 Steel Structure Co. of China Construction Third Engineering Bureau, Shenzhen 518040, China)
Abstract:Based on codes and engineering practice, a new method, which is used to directly exert pretension strength of high-strength bolts, is proposed for the first time. Hydraulic tensioner of high-strength bolt has also been developed to solve the problems of high-strength bolts with unqualified torque coefficients during construction. Engineering practice indicates that the new technology is very effective and valuable.
Keywords:high-strength bolt; hot dip galvanizing; pretension strength; pre-tension technology; hydraulic tensioner
河南省教育廳科技攻關(guān)項(xiàng)目(2008A560015)。
作者簡(jiǎn)介：張猛，博士，講師，Email:zhangmeng@zzu.edu.cn。
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