边缘构件内型钢含钢率对高强混凝土中高剪力墙抗震性能影响试验研究
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摘要
随着建筑技术的快速发展,高强混凝土在高层、超高层建筑中得到了广泛的应用。在高层建筑的底部,由于承受较大的竖向荷载和水平荷载,因此采用高强混凝土柱和剪力墙不仅可以方便施工,而且节约了空间,同时剪力墙墙体厚度不变,使上下层模板统一,加快施工进度。而高强混凝土剪力墙作为高层建筑中的主要抗侧力构件,其抗震性能的好坏对结构影响很大。试验研究表明,普通混凝土剪力墙,通过合理设置型钢(加设型钢支撑、与钢桁架一起形成内藏钢桁架混凝土剪力墙等方式),形成具有良好抗震性能的型钢混凝土剪力墙,受此启示,把型钢和高强混凝土剪力墙组合,探索形成的型钢高强混凝土剪力墙的抗震性能。
本文通过对4个边缘构件内不同型钢含钢率的型钢高强混凝土中高剪力墙在低周反复水平荷载下的试验研究,首先得出了型钢高强混凝土中高剪力墙在边缘构件内不同型钢含钢率的情况下的破坏形态、滞回曲线、骨架曲线、延性、耗能性能、强度衰减、型钢和钢筋的应力应变分布等;然后在试验研究的基础上,提出型钢高强混凝土中高剪力墙的弹性刚度简化计算公式;再根据《型钢混凝土组合结构技术规程》(JGJ 138-2001)建立极限承载力的计算模型与理论公式,将实验值和计算值进行对比分析,最后对墙体的变形特征进行初步探讨。
With the development of construction technology, high-strength concrete has extensive application in high-rise building. In the bottom of high-rise buildings, due to employing high-strength concrete columns and shear wall in resisting vertical load and horizontal load, it not only helps construction, but also saves space, while the same thickness of the shear wall, it accelerates construction schedule because of unified template on upper and lower floor. As the main lateral resisting member in high-rise building, the anti-seismic performance of high-strength concrete shear wall exerts a tremendous influence over structure. Experimental investigation result make it clear that in terms of the common concrete shear wall, by means of appropriately installing the steel (additionally installing the steel bracing, forming the concrete shear wall with steel truss etc.), to form a kind of lateral resisting member-high-strength concrete shear wall which has better seismic performance. It can enlighten us about the events that it explores the seismic performance of the steel reinforced high-strength concrete (SRHC) shear wall which combines steel with high-strength concrete shear wall.
By the experimental research on four SRHC mid-rise shear wall under low cyclic reversed lateral load, failure patterns, hysteretic curves, skeleton curves, ductile coefficients, energy dissipation, strength degeneration, stress and strain distribution steel by different steel content in boundary component are obtained. Otherwise, based on the experimental results, the reduced computational formula of the elastic stiffness in SRHC mid-rise shear wall is got, Then under the "Technical Specification for Steel Reinforced Concrete Structures" (JGJ 138-2001), the article establishes the load capacity of model and the theoretical formula, compares with the experimental and calculated values, Finally, the deformation characteristic of shear walls is discussed.
本文通过对4个边缘构件内不同型钢含钢率的型钢高强混凝土中高剪力墙在低周反复水平荷载下的试验研究,首先得出了型钢高强混凝土中高剪力墙在边缘构件内不同型钢含钢率的情况下的破坏形态、滞回曲线、骨架曲线、延性、耗能性能、强度衰减、型钢和钢筋的应力应变分布等;然后在试验研究的基础上,提出型钢高强混凝土中高剪力墙的弹性刚度简化计算公式;再根据《型钢混凝土组合结构技术规程》(JGJ 138-2001)建立极限承载力的计算模型与理论公式,将实验值和计算值进行对比分析,最后对墙体的变形特征进行初步探讨。
With the development of construction technology, high-strength concrete has extensive application in high-rise building. In the bottom of high-rise buildings, due to employing high-strength concrete columns and shear wall in resisting vertical load and horizontal load, it not only helps construction, but also saves space, while the same thickness of the shear wall, it accelerates construction schedule because of unified template on upper and lower floor. As the main lateral resisting member in high-rise building, the anti-seismic performance of high-strength concrete shear wall exerts a tremendous influence over structure. Experimental investigation result make it clear that in terms of the common concrete shear wall, by means of appropriately installing the steel (additionally installing the steel bracing, forming the concrete shear wall with steel truss etc.), to form a kind of lateral resisting member-high-strength concrete shear wall which has better seismic performance. It can enlighten us about the events that it explores the seismic performance of the steel reinforced high-strength concrete (SRHC) shear wall which combines steel with high-strength concrete shear wall.
By the experimental research on four SRHC mid-rise shear wall under low cyclic reversed lateral load, failure patterns, hysteretic curves, skeleton curves, ductile coefficients, energy dissipation, strength degeneration, stress and strain distribution steel by different steel content in boundary component are obtained. Otherwise, based on the experimental results, the reduced computational formula of the elastic stiffness in SRHC mid-rise shear wall is got, Then under the "Technical Specification for Steel Reinforced Concrete Structures" (JGJ 138-2001), the article establishes the load capacity of model and the theoretical formula, compares with the experimental and calculated values, Finally, the deformation characteristic of shear walls is discussed.
引文
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[4]王连广.钢与混凝土组合结构理论与计算[M].科学出版社,2005.
[5]刘维亚.型钢混凝土组合结构构造与计算手册[M].中国建筑工业出版社, 2004.
[6]日本建筑学会,冯乃谦等译.钢骨钢筋混凝土结构计算标准及解说[M].原子能出版社, 1998.
[7]贾金青.钢骨高强混凝土短柱及高强混凝土短柱力学性能的研究[D].大连理工大学博士论文, 2000.
[8]胡庆昌. 1995年日本阪神大地震中神户市房屋地震结构震害简介[J].建筑结构学, 1996.3.
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[10] D. S. Bondale. Column Theory with Special Reference to Composite Columns [J]. Consulting Engineering, Vol.30,1966.
[11] A. K. Basu. Computation of Failure Load of Composite Columns [J]. Proceedings,the Institute of Civil Engineers, 1967.
[12] J. W. Roderick and D. F. Rogers. Load Carrying Capacity of Simple Composite Columns [J]. ASCE,Journal of the Structural Division,Vol.95, 1969.
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[14] Charlesw.,Poeder. Composite and Mixed Construction [J]. New York, New York Press.
[15] Composite Structures. European Convention for Construction Steel work [J]. The Construction Press, London and New York, 1981.
[16]刘西林. SRC梁受力性能试验研究[J].西安冶金建筑学院, 1991.
[17]王连广,刘之洋.型钢混凝土结构在国内外应用和研究的进展[J].东北大学学报, 1995.3.
[18]陈肇元等.高强混凝土及其应用[M].清华大学出版社. 1992.
[19]徐亚丰.钢骨混凝土结构在我国的应用与研究[J].西部探矿工程, 2005.3.
[20]张誉.劲性骨架高强混凝土结构性能研究[D].同济大学博士论文, 1999.
[21]李俊华.低周反复荷载下型钢高强混凝土柱受力性能研究[D].西安建筑科技大学博士论文, 2005.
[22]许佳.钢骨超高强混凝土短柱抗震性能的试验研究[D].大连理工大学硕士论文,2004.
[23]贾金青.钢骨高强混凝土短柱及高强混凝土短柱力学性能的研究[D].大连理工大学, 2000.
[24] Astaneh-Asl.“Seismic Behavior and Design of Composite Steel Plate Shear Walls.”Steel TIPS Report[J] .Structural Steel Educational Council. Morag, CA.2002.
[25] Zhao Qiuhong,Abolhassan Astaneh-Asl.Cyelie Behavior of Traditional and Innovative Composite shear Walls .ASCE[J], Journal of structural Engineering,2004,130(2):271-285.
[26] Tong Xiangdong, Hajjar Jerome F,Arturo E.Sehultz,Carol K.Shield. Cyclic behavior of steel frame structures with composite reinforced concrete infill walls and partially restrained connections [J]. Journal of Constructional Steel Research,2005,61(4):531-552.
[27] Katsuhiko Emori. Compressive and shear strength of concrete filled steel box wall [J]. Steel Structures,2002,26(2):29-40.
[28] Link RA, Elwi A E. Composite Concrete Steel Plate Walls: Analysis and Behavior [J]. Journal of Structural Engineering,1995,121(2):260-271.
[29] SaariWilliam K, Hajja Jerome F,Sehultz Arturo E.etal. Shield. Behavior of shear studs in steel frames with reinforced concrete infill walls [J].Journalof Constructional Steel Research. 2004(60):1453-1480.
[30] SOON, H.e.,BRYCE,T and WILLIAM D,C. Structural steel boundary elements for ductile Concrete walls[J]. Journal of Structural Engineering,ASCE,2004,130(5),763-768.
[31]王志浩,钱稼茹.钢骨混凝土剪力墙的抗弯性能[J].建筑结构,1998,(2):13-21
[32]乔彦明,钱稼茹.钢骨混凝土剪力墙抗剪性能的试验研究[J].建筑结构,1995,(8):3-7.
[33]曹万林,张建伟等,带暗支撑低矮剪力墙抗震性能试验及承载力计算[J],土木工程学报,2004,37(3):44-51.
[34]黄雄军,赵世春.带劲性钢筋混凝土边框低剪力墙的试验研究[J].西南交通大学学报,1998,33(5):535-539.
[35]刘航,蓝宗建,庞向和.劲性钢筋混凝土低剪力墙抗震性能试验研究[J].工业建筑,1997,27(5):32-37.
[36]曹万林,杨兴民,黄选明,吕西林.带钢筋及钢骨暗支撑剪力墙抗震性能试验研究[J].世界地震工程,2005,21(l):l-6.
[37]曹万林,张建伟,田宝发等,钢筋混凝土带暗支撑中高剪力墙抗震性能试验研究〔J],建筑结构学报,2002,23(6):26-32
[38]曹万林,张建伟,崔立长等,钢筋混凝土带暗支撑双功能低矮剪力墙抗震性能试验研究[J],建筑结构学报,2003,24(l):46-53.
[39] W.L.Cao,D.Xue,J.W.Zhang.Seismie Performance of RC Shear Walls with Concealed Bracing[J].Advances in Structural Engineering,vol.6No.l 2003:l-13.
[40]曹万林,张建伟,田宝发,带暗支撑剪力墙体系抗震研究及应用[J],工程力学,2004,21(增刊):l-12.
[41]吕西林,董宇光,丁子文.截面中部配置型钢的混凝土剪力墙抗震性能研究[J].地震工程与工程振动,2006,26(6):101-107.
[42]魏勇,钱稼茹等.高轴压比钢骨混凝土矮墙水平加载试验[J].工业建筑2007,37(6):76-79.
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