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(1湖南大學(xué)土木工程學(xué)院，長沙410082；2 奧克蘭大學(xué)土木與環(huán)境工程系，奧克蘭1023)
［摘要］建立了一個包含259個矩形截面鋼筋混凝土剪力墻的試驗(yàn)數(shù)據(jù)庫，將數(shù)據(jù)分類篩選后與中國《高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程》（JGJ 3—2010）、美國規(guī)范ACI 318-11、新西蘭規(guī)范NZS 3101∶2006以及歐洲規(guī)范Eurocode 8的抗剪承載力公式進(jìn)行對比。結(jié)果表明，各規(guī)范抗剪承載力公式的計算結(jié)果與試驗(yàn)實(shí)測結(jié)果的比值離散性均較大，中國規(guī)范JGJ 3—2010和美國規(guī)范ACI 318-11的抗剪承載力公式較為安全準(zhǔn)確，歐洲規(guī)范Eurocode 8抗剪承載力公式最為離散。經(jīng)分析發(fā)現(xiàn)，對于上述四種規(guī)范，抗剪承載力公式中混凝土部分抗剪公式過于保守和不準(zhǔn)確是導(dǎo)致整個抗剪承載力公式離散性較大的一個重要原因。在中國規(guī)范JGJ 3—2010的抗剪承載力公式的基礎(chǔ)上，基于數(shù)據(jù)庫對混凝土部分抗剪公式進(jìn)行調(diào)整，調(diào)整后的抗剪承載力公式的準(zhǔn)確性比原有公式有明顯提高。
［關(guān)鍵詞］抗剪承載力； 鋼筋混凝土； 矩形截面剪力墻； 數(shù)據(jù)庫； 剪壓破壞
中圖分類號：TU375文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)09-0083-09
Research on shear capacity of rectangular section reinforced concrete shear wall based on experimental data
Lu Yiqiu1,2， Huang Liang1
(1 College of Civil Engineering, Hunan University, Changsha 410082, China；2 Department of Civil and Environmental Engineering, The University of Auckland, Auckland 1023, New Zealand)
Abstract:An experimental database of 259 rectangular section reinforced concrete shear walls was established. The data were classified and screened and compared with the shear capacity formulas of Chinese Technical specification concrete structures of tall building (JGJ 3—2010), American code ACI 318-11, New Zealand code NZS 3101∶2006 and European code Eurocode 8. The results show that the ratio of calculation results of shear capacity formulas in various codes to actual test data are quite discrete. The shear capacity formulas in Chinese code JGJ 3—2010 and American code ACI 318-11 are relatively safe and accurate, while the shear capacity formulas in European code Eurocode 8 are the most discrete. Through analysis, it is found that for the above four codes, the shear formulas of concrete part are too conservative and inaccurate, which is one of the important reasons for the large dispersion of the whole shear capacity formula. Based on the shear capacity formula of Chinese code JGJ 3—2010, the shear formula of concrete part was adjusted based on the database. The accuracy of the shear capacity formula is significantly improved compared with the original formula.
Keywords:shear capacity; reinforced concrete; rectangular section reinforced concrete shear wall; database; diagonal tension failure
*國家重點(diǎn)研發(fā)計劃（2017YFC0703305），國家自然科學(xué)基金（51078132）。
通訊作者：黃靚，博士，教授，Email: huangliangstudy@126.com。
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