框支配筋砌块砌体剪力墙墙梁的试验研究
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摘要
混凝土小型空心砌块符合节地、节能、利废的墙改方向,具有明显的经济和社会效益,成为替代粘土砖的首选新型墙体材料,在工程中得到了广泛的应用和推广。我校王凤来教授提出的配筋砌块短肢砌体剪力墙是一种新型的承重结构体系。配筋砌块短肢砌体剪力墙结合底部框支结构增大了底层的使用空间,满足了底层作为商业用房的需求。因此对该类结构进行试验和理论研究既有工程应用价值和理论意义,同时又对混凝土小型空心砌块应用范围的扩大起到了积极的促进作用。
本文在拟动力试验完成之后进行了底层框架配筋砌块短肢砌体剪力墙结构的三层足尺模型试验。试验内容共分为两部分:第一部分内容是对在拟动力试验过程中未破坏的单洞口框支墙梁进行竖向力静载试验,分析研究了在竖向荷载作用下托梁与其上部墙体的受力模式;第二部分内容是对在拟动力试验过程中有损伤的双洞口框支墙梁进行静载试验,研究了拟动力试验后双洞口框支墙梁的受力模式。研究结果表明,托梁与上部墙体表现出良好的协同工作能力,其工作模式为拉杆拱,完全符合墙梁的受力模式。同时根据拟动力试验过程中所采集的墙体和托梁内钢筋应变数据,对水平地震作用对墙梁受力影响进行了分析,得出了水平地震作用下双洞口框支墙梁的传力模式。
以试验为基础,利用ANSYS有限元分析软件对单洞口框支墙梁进行了受力性能分析,在单元选取、模型建立、参数设置及单元划分等方面得到了可靠验证的基础上,进行了扩大参数分析,获得了托梁高度、砌体强度、托梁混凝土强度对单洞口框支墙梁工作性能的影响。通过有限元分析得出了托梁内力等效系数,并且与砌体结构规范中所给公式计算值相比较发现剪力系数相当,弯矩系数要小很多,因此规范中设计公式是偏于安全的。
Small hollow concrete block is used as a substitute for fired clay brick and has been widely used in engineering due to its advantages of soil-saving and energy-saving, which also brings distinct economic and social benefits as a new type of building materials. The reinforced block short-leg masonry shear wall(RBSMSW) structure proposed by professor Wang Fenglai is a new type of bearing structure system. The frame supported reinforced block short-leg masonry shear wall(FSRBSMSW) structure can increase the ground floor’s available space, and also be used for commercial buildings. Therefore, the study on capacity subjected to vertical load through experimental and theoretical analysis is not only significant to practical application, but also helpful to extend the applied range of small hollow concrete block.
In this paper, the full-scale model of FSRBSMSW is tested subjected to vertical load after pseudo-dynamic test. The test content can be divided into two parts. Firstly, the static load test of frame supported wall-beam with single hole which has been undamaged after substructure pseudo-dynamic test is carried out to study the bearing mode of joist and its above wall. Secondly, the static load test about frame supported wall-beam with double hole which is badly destroyed after substructure pseudo-dynamic test is done. The experimental results indicate the joist and its above wall cooperate harmoniously, just like the frame supported wall-beam works as a tied arch. At the same time, we can gain the transmitting force model of frame supported wall-beam with double hole under horizontal earthquake action through analyzing the data of rebar strain, which is collected in pseudo-dynamic test.
FEA program ANSYS is adopted to simulate the behaviors of frame supported wall-beam with single hole. On the basis of the analytic results agreeing well with the selection of elements, the establishment of models, the setting of parameters and the division of elements, an extensive parametric study is conducted to analyze the effects of different factors, including section height of joist, intensity of the wall, intensity of the concrete of joist on the working performance. The equivalent of joist internal force could be obtained by analysing the finite element. Besides, comparing with values calculated of code for design of masonry structure, The design formulate in code is safer.
本文在拟动力试验完成之后进行了底层框架配筋砌块短肢砌体剪力墙结构的三层足尺模型试验。试验内容共分为两部分:第一部分内容是对在拟动力试验过程中未破坏的单洞口框支墙梁进行竖向力静载试验,分析研究了在竖向荷载作用下托梁与其上部墙体的受力模式;第二部分内容是对在拟动力试验过程中有损伤的双洞口框支墙梁进行静载试验,研究了拟动力试验后双洞口框支墙梁的受力模式。研究结果表明,托梁与上部墙体表现出良好的协同工作能力,其工作模式为拉杆拱,完全符合墙梁的受力模式。同时根据拟动力试验过程中所采集的墙体和托梁内钢筋应变数据,对水平地震作用对墙梁受力影响进行了分析,得出了水平地震作用下双洞口框支墙梁的传力模式。
以试验为基础,利用ANSYS有限元分析软件对单洞口框支墙梁进行了受力性能分析,在单元选取、模型建立、参数设置及单元划分等方面得到了可靠验证的基础上,进行了扩大参数分析,获得了托梁高度、砌体强度、托梁混凝土强度对单洞口框支墙梁工作性能的影响。通过有限元分析得出了托梁内力等效系数,并且与砌体结构规范中所给公式计算值相比较发现剪力系数相当,弯矩系数要小很多,因此规范中设计公式是偏于安全的。
Small hollow concrete block is used as a substitute for fired clay brick and has been widely used in engineering due to its advantages of soil-saving and energy-saving, which also brings distinct economic and social benefits as a new type of building materials. The reinforced block short-leg masonry shear wall(RBSMSW) structure proposed by professor Wang Fenglai is a new type of bearing structure system. The frame supported reinforced block short-leg masonry shear wall(FSRBSMSW) structure can increase the ground floor’s available space, and also be used for commercial buildings. Therefore, the study on capacity subjected to vertical load through experimental and theoretical analysis is not only significant to practical application, but also helpful to extend the applied range of small hollow concrete block.
In this paper, the full-scale model of FSRBSMSW is tested subjected to vertical load after pseudo-dynamic test. The test content can be divided into two parts. Firstly, the static load test of frame supported wall-beam with single hole which has been undamaged after substructure pseudo-dynamic test is carried out to study the bearing mode of joist and its above wall. Secondly, the static load test about frame supported wall-beam with double hole which is badly destroyed after substructure pseudo-dynamic test is done. The experimental results indicate the joist and its above wall cooperate harmoniously, just like the frame supported wall-beam works as a tied arch. At the same time, we can gain the transmitting force model of frame supported wall-beam with double hole under horizontal earthquake action through analyzing the data of rebar strain, which is collected in pseudo-dynamic test.
FEA program ANSYS is adopted to simulate the behaviors of frame supported wall-beam with single hole. On the basis of the analytic results agreeing well with the selection of elements, the establishment of models, the setting of parameters and the division of elements, an extensive parametric study is conducted to analyze the effects of different factors, including section height of joist, intensity of the wall, intensity of the concrete of joist on the working performance. The equivalent of joist internal force could be obtained by analysing the finite element. Besides, comparing with values calculated of code for design of masonry structure, The design formulate in code is safer.
引文
1唐岱新.现代砌体结构.哈尔滨工业大学土木工程学院, 2002:1~2
2费洪涛.配筋砌块短肢砌体剪力墙抗震性能的试验研究.哈尔滨工业大学硕士论文. 2005:7~14, 74~76
3许祥训.配筋砌块短肢砌体剪力墙抗剪性能试验研究.哈尔滨工业大学硕士论文. 2006:1~14,18~22
4李新.配筋砌块短肢砌体剪力墙偏心受压性能的试验研究.哈尔滨工业大学硕士论文. 2006:1~10
5唐岱新,龚绍熙,周炳章.砌体结构设计规范理解与应用.中国建筑工业出版社, 2002:134~146
6张云杰.混凝土砌块砌体轴压应力应变关系试验研究.哈尔滨工业大学硕士论文. 2002:121~128
7马旻.砌块墙体温度裂缝形成机理和控制方法的研究.哈尔滨工业大学硕士论文. 2003:25~43
8姜洪斌.配筋混凝土砌块砌体高层结构抗震性能研究.哈尔滨建筑大学博士论文. 2000:29~63
9翟希梅.砌块空腔墙体与约束配筋砌块结构的抗震性能研究.哈尔滨工业大学博士论文. 2001:13~29
10全成华.配筋砌块砌体剪力墙抗剪静动力性能研究.哈尔滨工业大学博士论文. 2002:36~82
11于芳.配筋砌块墙体平面外偏压承载力的试验研究.哈尔滨工业大学硕士论文. 2005:41~53
12李启鑫.设置构造柱混凝土砌块墙体受压承载力的试验研究.哈尔滨工业大学硕士论文. 2005:24~42
13田玉滨.配筋砌块砌体剪力墙砌块连梁的抗震性能研究.哈尔滨工业大学博士论文. 2002:19~43
14贺艳丽.约束灌芯混凝土砌块砌体的轴压力学性能试验研究.哈尔滨工业大学硕士论文. 2005:1~12,77
15刘洧骥.框支配筋砌块短肢砌体剪力墙墙梁受力性能试验研究.哈尔滨工业大学硕士论文. 2007:1~7,61~62
16国艳锋.带洞口配筋混凝土砌块墙梁的受力性能试验研究.哈尔滨工业大学硕士论文. 2007:62~66,65~70
17黄靓.框支配筋砌块砌体剪力墙多自由度子结构拟动力试验研究及非线性地震反应分析.湖南大学博士论文. 2005:1~13,27~58
18 M. J. N. Priestley. Seismic Resistance of Reinforced Concrete Masonry Shear Walls with High Steel Percentages. Bull.New Zealand Nat.Soc.Earthquake Engrg. 1977, 10(1):226~236
19 F. Seible, G. A. Hegemier, A. Igarashi and G. R. Kingsley. Simulated Seismic Load Tests in Full Scale Five Story Masonry Building. Journal of Structural Engineering. 1994, 120(3):903~924
20 F. Seible, M. J. N. Priestley, G. R. Kingsley, and A. G. Kurkchubasche. Seismic Response of Full Scale Five Story Reinforced Masonry Building. Journal of Structural Engineering. 1994, 120(3):925~947
21 T.鲍雷, M.J.N.普里斯特利.钢筋混凝土和砌体结构的抗震设计.中国建筑工业出版社,1999:333~400
22胡庆国.配筋砌块砌体剪力墙抗剪承载力非线性有限元分析.长沙交通学院学报. 2003, 19(2):16~20
23 M. Tomazevic, I. Klemenc. Verification of Seismic Resistance of Confined Masonry Buildings. Earthquake Engineering and Structural Dynamics.1997, (26):1073~1088
24 M. Tomazevic. Earthquake Resistant Design of Masonry Buildings. Imperial College Press , 1999
25 R. T. Horton, M. K. Tadros. Deflection of Reinforced Masonry Members. ACI Structural Journal. 1990, 87(4):453~463
26 M. Tomazevic, P. Weiss. Seismic Behavior of Plain and Reinforced Masonry Buildings. Journal of Structural Engineering. 1994, 120(2):323~339
27 B. S. Smith, L. Pradolin, J. R. Riddington. Composite Design Method of Masonry Walls on Steel Beams.Can.J.Civ.eng. 1982, (9):96~106
28 B. S. Smith, L. Pradolin. Design Method of Masonry Walls on Concrete Beams. CanJ.Civ.eng10. 1983:337~349
29 Z. A. Zielinski, M. Rigotti. Tests on Shear Capacity of Reinforced Concrete. Journal of Structural Engineering. 1995, (9):1660~1666
30施楚贤,杨伟军.配筋砌块砌体剪力墙的受剪承载力及可靠度分析.建筑结构. 2001, 31(3):41~44
31杨伟军,施楚贤.配筋砌块剪力墙抗剪承载力研究.建筑结构. 2001, 31(9)
32刘一芳,白秉三,白路.墙梁研究的现状及发展.沈阳工业大学学报. 2002, (23):60~62
33陆能源,墙梁的试验研究与考虑组合作用的墙梁设计.砌体结构研究论文集.长沙.湖南大学出版社. 1989:36~42
34王凤来.底层大开间框剪组合墙结构框支墙梁试验研究.哈尔滨工业大学博士论文. 1999:1~6, 14~17
35 B. M.Жемочкин.РacчетРaндбалокиПермычек,1960
36 R. H. Wood. The Composite Action of Brink Panel Walls Supported on Reinforced Concrete Beams. Studies in Composite Construction Part ?, National Building Studies Research Paper No.13, London ,1952
37 S. Rosenhaupt. Experimental Study of Masonry Walls on Beams. Structural Div. ASCE Proceedings.Vol.88.No.ST3.June 1962
38龚绍熙,李翔,吴承霞,陈力奋.框支墙梁的试验研究、有限元分析和承载力计算.建筑结构. 2001, 31(9):31~34
39龚绍熙,李翔,吴承霞,陈力奋.连续墙梁的试验研究、有限元分析和承载力计算.建筑结构. 2001, 31(9):38~41
40龚绍熙,李翔,张晔,缪国庆,框支墙梁的低周反复荷载试验、有限元分析及抗震设计.现代砌体结构.中国建筑工业出版社, 2000:230~235
41江见鲸.钢筋混凝土结构非线性有限元分析.陕西科学技术出版社, 1994:35~88
42 Architectural Institute of Japan. All standards for Structural Masonry Structures. 1989:66~75
43 A. W. Page. Finite Element Model for Masonry. Journal of Structural Division. 1978, (8):1121~1126
44 J. G. Rots, P. B. Lorenco. Fracture Simulation of Mansonry Using Non-linear interface Element. Proc.of 6th NAMC, Philade, 1993:983~993
45 S. S. Ali, A. W. Rage. Finite Element Methods for Masonry Subjected to Concentrated Loads. J. Struct. Engrg. 1988, 114(8):1761~1784
46 T. S. Cheema, R. E. Klingner. Compressive Strength of Concrete Masonry Prisms. ACI Journal. 1986, 83(1):88~97
47 K. Naraine, Sachchildan, Sinba. Cyclic Behavior of Brick Masonry Under Biaxial Compression. J. Struct. Engrg. 1991, 117(5):612~624
48 B. Assa, M. Dhanasekar. A Numerical Model for The Flexural Analysis of Short Reinforced Masonry Columns Including Bond-slip, 2002:506~520
49 A. F. Barbosa, G. O. Ribeiro. Analysis of Reinforced Concrete Structure Using Ansys Nonlinear Concrete Model. Computational Mechanics New Trends and Applications. 2002 :230~265
50 B. V. Rangan. Shear Design of Reinforced Concrete Beams, Slabs and Walls. Cement and Concrete Composites. 2003, (20):455~464
51 ASCE-ACI Committee 445 on Shear and Torsion. Recent Approaches to Shear Design of Structural Concrete. Journal of Structural Engineering. 1998:1375~1417
52齐良锋,张俊发,张保印.单跨简支开洞口墙梁内力计算方法的研究.西安科技学院学报. 2000, 20(4):312~314
2费洪涛.配筋砌块短肢砌体剪力墙抗震性能的试验研究.哈尔滨工业大学硕士论文. 2005:7~14, 74~76
3许祥训.配筋砌块短肢砌体剪力墙抗剪性能试验研究.哈尔滨工业大学硕士论文. 2006:1~14,18~22
4李新.配筋砌块短肢砌体剪力墙偏心受压性能的试验研究.哈尔滨工业大学硕士论文. 2006:1~10
5唐岱新,龚绍熙,周炳章.砌体结构设计规范理解与应用.中国建筑工业出版社, 2002:134~146
6张云杰.混凝土砌块砌体轴压应力应变关系试验研究.哈尔滨工业大学硕士论文. 2002:121~128
7马旻.砌块墙体温度裂缝形成机理和控制方法的研究.哈尔滨工业大学硕士论文. 2003:25~43
8姜洪斌.配筋混凝土砌块砌体高层结构抗震性能研究.哈尔滨建筑大学博士论文. 2000:29~63
9翟希梅.砌块空腔墙体与约束配筋砌块结构的抗震性能研究.哈尔滨工业大学博士论文. 2001:13~29
10全成华.配筋砌块砌体剪力墙抗剪静动力性能研究.哈尔滨工业大学博士论文. 2002:36~82
11于芳.配筋砌块墙体平面外偏压承载力的试验研究.哈尔滨工业大学硕士论文. 2005:41~53
12李启鑫.设置构造柱混凝土砌块墙体受压承载力的试验研究.哈尔滨工业大学硕士论文. 2005:24~42
13田玉滨.配筋砌块砌体剪力墙砌块连梁的抗震性能研究.哈尔滨工业大学博士论文. 2002:19~43
14贺艳丽.约束灌芯混凝土砌块砌体的轴压力学性能试验研究.哈尔滨工业大学硕士论文. 2005:1~12,77
15刘洧骥.框支配筋砌块短肢砌体剪力墙墙梁受力性能试验研究.哈尔滨工业大学硕士论文. 2007:1~7,61~62
16国艳锋.带洞口配筋混凝土砌块墙梁的受力性能试验研究.哈尔滨工业大学硕士论文. 2007:62~66,65~70
17黄靓.框支配筋砌块砌体剪力墙多自由度子结构拟动力试验研究及非线性地震反应分析.湖南大学博士论文. 2005:1~13,27~58
18 M. J. N. Priestley. Seismic Resistance of Reinforced Concrete Masonry Shear Walls with High Steel Percentages. Bull.New Zealand Nat.Soc.Earthquake Engrg. 1977, 10(1):226~236
19 F. Seible, G. A. Hegemier, A. Igarashi and G. R. Kingsley. Simulated Seismic Load Tests in Full Scale Five Story Masonry Building. Journal of Structural Engineering. 1994, 120(3):903~924
20 F. Seible, M. J. N. Priestley, G. R. Kingsley, and A. G. Kurkchubasche. Seismic Response of Full Scale Five Story Reinforced Masonry Building. Journal of Structural Engineering. 1994, 120(3):925~947
21 T.鲍雷, M.J.N.普里斯特利.钢筋混凝土和砌体结构的抗震设计.中国建筑工业出版社,1999:333~400
22胡庆国.配筋砌块砌体剪力墙抗剪承载力非线性有限元分析.长沙交通学院学报. 2003, 19(2):16~20
23 M. Tomazevic, I. Klemenc. Verification of Seismic Resistance of Confined Masonry Buildings. Earthquake Engineering and Structural Dynamics.1997, (26):1073~1088
24 M. Tomazevic. Earthquake Resistant Design of Masonry Buildings. Imperial College Press , 1999
25 R. T. Horton, M. K. Tadros. Deflection of Reinforced Masonry Members. ACI Structural Journal. 1990, 87(4):453~463
26 M. Tomazevic, P. Weiss. Seismic Behavior of Plain and Reinforced Masonry Buildings. Journal of Structural Engineering. 1994, 120(2):323~339
27 B. S. Smith, L. Pradolin, J. R. Riddington. Composite Design Method of Masonry Walls on Steel Beams.Can.J.Civ.eng. 1982, (9):96~106
28 B. S. Smith, L. Pradolin. Design Method of Masonry Walls on Concrete Beams. CanJ.Civ.eng10. 1983:337~349
29 Z. A. Zielinski, M. Rigotti. Tests on Shear Capacity of Reinforced Concrete. Journal of Structural Engineering. 1995, (9):1660~1666
30施楚贤,杨伟军.配筋砌块砌体剪力墙的受剪承载力及可靠度分析.建筑结构. 2001, 31(3):41~44
31杨伟军,施楚贤.配筋砌块剪力墙抗剪承载力研究.建筑结构. 2001, 31(9)
32刘一芳,白秉三,白路.墙梁研究的现状及发展.沈阳工业大学学报. 2002, (23):60~62
33陆能源,墙梁的试验研究与考虑组合作用的墙梁设计.砌体结构研究论文集.长沙.湖南大学出版社. 1989:36~42
34王凤来.底层大开间框剪组合墙结构框支墙梁试验研究.哈尔滨工业大学博士论文. 1999:1~6, 14~17
35 B. M.Жемочкин.РacчетРaндбалокиПермычек,1960
36 R. H. Wood. The Composite Action of Brink Panel Walls Supported on Reinforced Concrete Beams. Studies in Composite Construction Part ?, National Building Studies Research Paper No.13, London ,1952
37 S. Rosenhaupt. Experimental Study of Masonry Walls on Beams. Structural Div. ASCE Proceedings.Vol.88.No.ST3.June 1962
38龚绍熙,李翔,吴承霞,陈力奋.框支墙梁的试验研究、有限元分析和承载力计算.建筑结构. 2001, 31(9):31~34
39龚绍熙,李翔,吴承霞,陈力奋.连续墙梁的试验研究、有限元分析和承载力计算.建筑结构. 2001, 31(9):38~41
40龚绍熙,李翔,张晔,缪国庆,框支墙梁的低周反复荷载试验、有限元分析及抗震设计.现代砌体结构.中国建筑工业出版社, 2000:230~235
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