裝配式鋼梁預(yù)制柱組合框架抗震性能試驗研究*
伍云天1,2，明亮3，肖巖4,5，薛梅1
- 摘 要
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伍云天1,2，明亮3，肖巖4,5，薛梅1（1 重慶大學(xué)土木工程學(xué)院， 重慶 400045； 2 重慶大學(xué)山地城鎮(zhèn)建設(shè)與新技術(shù)教育部重點實驗室，重慶 400045； 3 重慶建工集團股份有限公司設(shè)計研究院，重慶 400042； 4 湖南大學(xué)建筑安全與節(jié)能教育部重點實驗室， 長沙 410082； 5 南加州大學(xué)土木與環(huán)境工程系, 洛杉磯 CA90089）［摘要］為了研究中、高烈度地震區(qū)裝配式鋼梁-預(yù)制柱組合框架結(jié)構(gòu)的抗震性能，進行了兩個大比例鋼梁-預(yù)制混凝土柱-基礎(chǔ)組合框架子結(jié)構(gòu)試件的低周往復(fù)加載試驗，介紹并討論了主要試驗結(jié)果。兩個組合框架子結(jié)構(gòu)試件中，鋼梁均通過端板、預(yù)應(yīng)力高強螺栓與預(yù)制柱連接，而預(yù)制柱分別通過機械連接器和縱筋錨固的方式與基礎(chǔ)連接。試驗結(jié)果表明，當(dāng)層間位移延性系數(shù)達到5.0時，構(gòu)件仍然具有較好的抗側(cè)剛度與強度，沒有出現(xiàn)明顯的剛度與強度退化現(xiàn)象，合理設(shè)計后的裝配式鋼梁預(yù)制柱組合框架結(jié)構(gòu)在強度、側(cè)移延性和屈服后變形能力等方面能夠滿足抵抗地震作用的需要。根據(jù)試驗結(jié)果，還比較了兩種預(yù)制柱和基礎(chǔ)連接方式對整體結(jié)構(gòu)性能的影響。［關(guān)鍵詞］鋼梁-預(yù)制柱節(jié)點；組合結(jié)構(gòu)；子結(jié)構(gòu)；抗震性能中圖分類號：TU398+.9 文獻標識碼：A 文章編號：1002-848X(2013)09-0066-06Experimental study on seismic behavior of assembled steel beam-PC column composite framesWu Yuntian1,2, Ming Liang3, Xiao Yan4,5, Xue Mei1(1 College of Civil Engineering, Chongqing University, Chongqing 400045, China; 2 Key Lab of Chinese Education Ministry for Construction and New Technology of Mountain Cities, Chongqing University, Chongqing 400045, China; 3 Chongqing Constrution Engineering Group Co., Ltd., 400042, China; 4 The Key Laboratory of Building Safety and Energy Efficiency of the Ministry of Education, Hunan University, Changsha 410082, China; 5 Department of Civil and Environmental Engineering, University of Southern California, Los Angeles CA90089, USA)Abstract: In order to investigate the seismic behavior of assembled steel beam-PC column composite frames in medium and high seismic regions, two large scale beam-column-footing frame subassemblies were tested under cyclic horizontal loading. The main experimental results were presented and discussed. In the two test subassemblies, steel beams were connected to the precast columns by endplates and post-tensioned high strength bolts. The precast columns were connected to the footings through mechanical couplers and dowel anchorage methods respectively. Test results indicate that the test subassemblies can exhibit excellent strength and stiffness retention capacity even when the layer displacement ductility factor reaches 5.0. The assembled steel beam-PC column composite frames can be designed for resisting seismic load in terms of strength, drift ductility, and post-yield deformation capacity. In addition, the influences of the two different column-footing connection types are evaluated.Keywords: steel beam-PC column joint; composite structure; subassembly; seismic behavior*國家自然科學(xué)基金（51108484）,中央高?；究蒲袠I(yè)務(wù)費資助（CDJRC10200017）。作者簡介：伍云天，博士，副教授，Email: yuntianwcqu@gmail.com。參考文獻［1］STONE W C, CHEOK G S, STANTON J F. Performance of hybrid moment-resisting precast beam-column concrete connections subjected to cyclic loading ［J］. ACI Structural Journal, 1995, 91(2): 229-249.［2］KURAMA Y C, PESSIKI S, SAUSE R, et al. Seismic behavior and design of unbonded posttensioned precast concrete walls ［J］. PCI Journal, 1999, 44(3): 72-89.［3］DEIERLEIN G G, NOGUCHI H. Overview of U.S. Japan research on the seismic design of composite reinforced concrete and steel moment frame structures ［J］. Journal of Structural Engineering, 2004, 130(2): 361-367.［4］Li X, Wu Y T, Mao W F, et al. Bolted end plate connections for steel reinforced concrete composite structures ［J］. Structural Engineering and Mechanics, 2006,24(3)：291-306.［5］毛煒峰,伍云天,肖巖，等.高強螺栓連接鋼梁混凝土柱組合節(jié)點的抗震性能［J］. 工業(yè)建筑, 2005, 35（11）：1-4.［6］Seismic provisions for structural steel buildings［S］. Chicago: American Institute of Steel Construction, 2001.
