- 摘 要
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(1 廣東省建筑設計研究院， 廣州 510010； 2 華南理工大學建筑設計研究院有限公司， 廣州 510640；3 華南理工大學亞熱帶建筑科學國家重點實驗室, 廣州 510640)
［摘要］為研究鋼管混凝土剪力墻-板結構體系的抗震性能，對一個比例為1∶8的結構縮尺模型進行模擬地震振動臺試驗，得到試驗模型在4個不同強度水平地震作用下的損傷和位移等宏觀地震反應。試驗結果表明：結構在多遇地震作用下表現(xiàn)出較大的抗震剛度，在罕遇、極罕遇地震作用下彈塑性發(fā)展充分，表現(xiàn)出良好的抗震延性，滿足“小震不壞、中震可修、大震不倒”的抗震設防標準；鋼管混凝土剪力墻構件在試驗過程中未發(fā)現(xiàn)損壞，是結構良好延性的保證；板-墻連接節(jié)點是結構抗震的薄弱部位。在試驗基礎上，分別建立新型板-墻結構和傳統(tǒng)板-墻結構兩個分析模型，進行數(shù)值模擬分析對比。結果顯示新型板-墻結構在地震作用下剛度退化更慢，極限承載力更高，延性發(fā)展充分，具有更好的抗震性能。
［關鍵詞］鋼管混凝土剪力墻； 混凝土板-墻結構； 振動臺試驗； 彈塑性分析； 抗震性能對比
中圖分類號：TU317文獻標識碼：A文章編號：1002-848X(2020)10-0051-08
Study on shaking table tests of steel tube-confined concrete shear wall and slab structure
LAI Zerong1,3, WANG Fan2,3, FANG Xiaodan2，3, ZHOU Jing3
(1 Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China;2 Architecture Design & Research Institute, SCUT, Guangzhou 510640, China;3 State Key Laboratory of Subtropical Building Science, SCUT, Guangzhou 510640, China)
Abstract:In order to study the seismic performance of steel tube-confined concrete shear wall and slab structural system, a scale-up model with a scale of 1∶8 was tested on a shaking table to obtain the macro seismic responses of the structure, such as the damage and displacement, under the action of four different seismic intensity levels. The test results show that the structure has a large seismic stiffness under the action of frequent earthquakes, a full development of elastoplasticity under the action of rare and extremely rare earthquakes, and a good seismic ductility, which meets the seismic fortification standard of "not damage under the frequent earthquake, repairable under the fortification earthquake, and not collapsing under the rare earthquake"; the steel tube-confined concrete shear wall component has not been found damaged in the test process, which is the guarantee of good ductility of the structure; the slab-wall joint is the weak position of the structure. On the basis of the test, two analytical models of the new-type slab-wall structure and the traditional slab-wall structure were established respectively, and the numerical simulation analysis and comparison were carried out. The results show that the rigidity degradation of the new-type slab-wall structure is slower, the ultimate bearing capacity is higher, the ductility development is sufficient, and the seismic performance is better.
Keywords:steel tube-confined concrete shear wall; concrete slab and wall structure; shaking table test; elastoplastic analysis; seismic performance comparison
*廣州市節(jié)能專項基金(J-2016-01)，華南理工大學亞熱帶建筑科學國家重點實驗室項目(2017KC18)。
作者簡介：賴澤榮，碩士，助理工程師，Email:137090493@163.com。
