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（1 北京工業(yè)大學(xué)建筑工程學(xué)院， 北京 100124； 2 中國(guó)地震局地球物理研究所， 北京 100081）

［摘要］設(shè)計(jì)并進(jìn)行了3個(gè)1/5縮尺模型的核電工程結(jié)構(gòu)的巨厚雙鋼板混凝土組合墻體面外低周往復(fù)擬靜力試驗(yàn)，分析了軸壓力、混凝土強(qiáng)度對(duì)墻體的破壞形式、開(kāi)裂荷載、極限承載能力、延性以及耗能能力的影響。研究表明：在面外荷載作用下，巨厚雙鋼板混凝土組合墻體出現(xiàn)典型的脆性破壞、延性較差、耗能能力較弱；適當(dāng)?shù)靥岣咻S壓力能有效地提高墻體的抗裂性能和一定程度地提高其極限承載能力；混凝土強(qiáng)度變化對(duì)該結(jié)構(gòu)墻體開(kāi)裂荷載影響不明顯，但提高混凝土強(qiáng)度能一定程度地提高墻體的極限承載能力。

［關(guān)鍵詞］雙鋼板混凝土結(jié)構(gòu)； 面外彎剪性能； 模型試驗(yàn)

中圖分類號(hào)：TU398文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)16-0083-04

Experimental study on the bending shear performance of steel plate reinforced concrete structure for nuclear power plants under out-plane load

Liu Jin1, Li Xiaojun1,2

(1 The College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124， China; 2 Institute of Geophysics, China Earthquake Administration, Beijing 100081， China)

Abstract:The quasi-static tests with out-plane low-cycle loading were made. Three 1/5 scale models of the nuclear power plant structures were tested to study the bending shear performance of steel plate reinforced concrete structure shear wall. The effects of axial pressure and concrete strength on   failure mode, the cracking load, ultimate bearing capacity，ductility and energy dissipation capacity  of the shear walls were analyzed. The test results show that the walls have the typical brittle failure, poor ductility and weak energy consumption under out-plane load. Appropriately increasing the axial pressure can effectively improve the crack resistance of the wall and improve its ultimate bearing capacity. The increase of the concrete strength has little effect on the cracking load of the wall, but it can increase the ultimate bearing capacity of the walls.

Keywords:steel plate reinforced concrete structure; out\|plane bending shear performance; model test

*國(guó)家自然科學(xué)基金創(chuàng)新研究群體科學(xué)基金（51421005），北京市屬高等學(xué)校創(chuàng)新團(tuán)隊(duì)建設(shè)提升計(jì)劃（IDHT20130507），國(guó)家科技重大專項(xiàng)（2011ZX06002-010-16）。

作者簡(jiǎn)介：劉進(jìn)，碩士，Email: 867379062@qq.com。