884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（華東建筑設(shè)計(jì)研究院有限公司， 上海 200041）

［摘要］通過(guò)分析收集到的84根彎曲破壞型鋼混凝土柱和96根矩形鋼管混凝土柱的擬靜力試驗(yàn)數(shù)據(jù)，得到了其極限位移角。分析了影響型鋼混凝土柱與矩形鋼管混凝土柱極限位移角的主要參數(shù)，擬合了兩類柱子的極限位移角計(jì)算公式?；阡?混凝土組合柱變形能力一致的原則，得到了型鋼混凝土柱在不同軸壓比下的最小配箍特征值要求以及不同抗震等級(jí)的矩形鋼管混凝土柱的軸壓比限值，為《組合結(jié)構(gòu)設(shè)計(jì)規(guī)范》(JGJ 138—2016)的進(jìn)一步修正提供參考。

［關(guān)鍵詞］軸壓比； 極限位移角； 型鋼混凝土柱； 矩形鋼管混凝土柱； 配箍特征值

中圖分類號(hào)：TU398-7文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2020)18-0076-08

Study on deformation capacity and axial compression ratio limits of steel-concrete composite columns

LI Yinghui

(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200041, China)

Abstract:The quasi-static test data of 84 steel reinforced concrete (SRC) columns and 96 rectangular concrete-filled tube (RCFT) columns failing in flexural mode were collected, and the ultimate drifts of columns were obtained. The effects of design parameters on the ultimate drift were analyzed for SRC columns and RCFT columns respectively, and the calculation formulas for ultimate drift were derived by fitting. Based on the principle that the deformation capacity of steel-concrete composite columns is consistent, the minimum hoop characteristic value of SRC columns with different axial compression ratios and the axial compression ratio limit of RCFT columns were obtained. This study provides a reference for the further revision of  Code for Design of Composite Structures (JGJ 138—2016).

Keywords:axial compression ratio; ultimate drift; steel reinforced concrete column; rectangular concrete-filled tube column; hoop characteristic value

*國(guó)家重點(diǎn)研發(fā)計(jì)劃專項(xiàng)項(xiàng)目資助(2017YFC0703401)。

作者簡(jiǎn)介：李瑩輝，博士，工程師，Email:yinghui_li@arcplus.com.cn。