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(中鐵城建集團(tuán)有限公司，長(zhǎng)沙 410208)

［摘要］針對(duì)銀川綠地中心型鋼混凝土柱鋼筋較多、部分鋼筋穿透型鋼，造成節(jié)點(diǎn)構(gòu)造復(fù)雜、施工難度大等缺點(diǎn)，結(jié)合工程實(shí)際設(shè)計(jì)了兩種不同于標(biāo)準(zhǔn)做法的構(gòu)造措施，進(jìn)行了縮尺構(gòu)件的抗震性能試驗(yàn)，對(duì)比分析三種不同構(gòu)造措施的型鋼混凝土柱在低周往復(fù)荷載作用下的破壞形態(tài)、滯回曲線、骨架曲線、承載力、剛度退化、耗能能力等。結(jié)果表明，三種不同構(gòu)造措施的型鋼混凝土柱承載力相差不大，耗能性能相當(dāng)。設(shè)計(jì)的兩種代替構(gòu)造措施可以應(yīng)用于工程。 

［關(guān)鍵詞］銀川綠地中心； 梁柱節(jié)點(diǎn)； 型鋼混凝土； 構(gòu)造措施； 抗震性能； 低周往復(fù)荷載試驗(yàn) 

中圖分類(lèi)號(hào)：TU397-1 文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)12-0044-05

Experimental study on seismic performances of steel reinforced concrete beam-column joints in Yinchuan Green Space Center 

ZHENG  Shuren

(China Railway Urban Construction Group Co., Ltd.，Changsha 410208， China) 

Abstract: In view of the fact that there are many steel bars in the steel reinforced concrete columns of Yinchuan Green Space Center and some steel bars penetrate the steel, which has the disadvantages of complicated joint structure and difficult construction. Combined with engineering practice, two  structural measures different from the standard were designed and the seismic performance test of the scale members was carried out. The failure modes, hysteresis curves, skeleton curves, bearing capacity，stiffness degradation and energy dissipation capacity of steel reinforced concrete columns with three different structural measures under low cycle reciprocating load were compared and analyzed. The results show that the bearing capacity of steel reinforced concrete columns with three different structural measures is not much different, and the energy dissipation performance is almost the same. Therefore, the two alternative construction measures designed  can be applied to engineering. 

Keywords:Yinchuan Green Space Center； beam-column joint； steel reinforced concrete； construction measure； seismic performance； low cyclic reciprocating loading test

作者簡(jiǎn)介：鄭書(shū)仁，學(xué)士，高級(jí)工程師，Email：14757741@qq.com。