预应力钢—混凝土组合梁抗弯性能研究
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摘要
钢-混凝土组合结构是将钢材与混凝土通过剪力连接件组合成整体而共同受力的一种新型结构。钢-混凝土组合结构兼有混凝土结构和钢结构的优点,具有显著的技术经济效益和社会效益,因而被广泛运用于高速公路和城市桥梁建设中。尽管钢-混凝土组合梁在国内外都有广泛的研究,然而其理论体系还不完善,国内现行设计规范也没有相应的条款,这大大影响了该结构体系在工程中的应用。基于此,本文就预应力钢-混凝土组合梁的抗弯承载力进行了研究。
在广泛收集国内外己有研究资料的基础上,文章探讨了影响预应力钢-混凝土组合梁抗弯性能的各项因素,详细介绍了将钢结构与混凝土结构连接成整体而共同工作的重要部件——剪力连接件的承载能力以及由其引起的界面滑移现象,并且推导了相应公式。
为了分析预应力钢箱-混凝土组合梁的受力性能,文章以内蒙古星光互通连接线跨线桥为原型进行了模型试验研究,研究其变形发展及破坏过程,得到组合梁跨中荷载挠度曲线、交界面相对滑移曲线、跨中截面应变沿梁高的变化曲线。利用弹性分析理论,建立适合于在跨中两点对称荷载作用下钢-混凝土简支组合梁交界面滑移的计算公式;通过对组合梁在不同受力阶段的分析,得出了组合梁的承载能力计算公式;分析了由于滑移效应对预应力组合梁的刚度影响效果。并将计算结构与实测结果相比较,吻合较好。
论文通过模型试验和对预应力钢-混凝土组合结构承载能力的分析,为预应力钢-混凝土组合梁的进一步研究提供了数据资料,为预应力钢-混凝土组合梁抗弯性能的进一步研究及理论分析提供参考,具有一定的理论意义和实用价值。
Steel and concrete composite structure are new structures in which the steel and the concrete are integrated by connectors to take advantage of the respective properties of tension and compression. Steel and concrete composite structure have both the advantages of steel structure and concrete structure, remarkable benefit of technology economics and society have been achieved, so it has been widely used in freeway and urban bridge construction. Despite of steel and concrete composite beams have comparatively broad research in home and abroad, but there still are not respective provisions in the Chinese design specifications till now, so these aspects have a great influence on the application of this reasonable structure system. Based on these, the research on the Flexural Capacity of Prestressed steel and concrete composite beams is presented.
Based on comprehensive collection of the existing research documents home and abroad, this paper expounds the factors which influenced the flexural performance of the steel and concrete composite structure, describes the especially important part of the steel and concrete composite structure-- shear connector, which integrate the steel structure and concrete structure
For the sake of analyzing the mechanical properties of prestressed steel-concrete composite beams, the paper carry through model test research which prototyped the Xingguang linking route overpass in Inner Mongolia, study the process of the composite beams being deformed, developed and broken. Then we get the midspan load-deflection curve, the slip of interface curve and strain curve which varies with its profile height. Based on the theory of elastic analysis, we can establish the calculation formula of steel and concrete composite beams which adapt to its bear symmetrical loading; through the analysis to different phase of loading of the composite beams, we can establish the calculation of bearing capacity about composite beams; analyze composit beams rigidity which influenced by slip effect. The results of calculation and testing are consistented.
Through the model load test and bear capacity analysis of prestressed steel-concrete composite beams, the paper provides data information for more studies of prestressed steel-concrete composite beams, provides reference for advanced study and theoretic analysis of flexural performance of prestressed steel-concrete composite beams, and this dissertation has the certain theoretical meaning and practical value.
在广泛收集国内外己有研究资料的基础上,文章探讨了影响预应力钢-混凝土组合梁抗弯性能的各项因素,详细介绍了将钢结构与混凝土结构连接成整体而共同工作的重要部件——剪力连接件的承载能力以及由其引起的界面滑移现象,并且推导了相应公式。
为了分析预应力钢箱-混凝土组合梁的受力性能,文章以内蒙古星光互通连接线跨线桥为原型进行了模型试验研究,研究其变形发展及破坏过程,得到组合梁跨中荷载挠度曲线、交界面相对滑移曲线、跨中截面应变沿梁高的变化曲线。利用弹性分析理论,建立适合于在跨中两点对称荷载作用下钢-混凝土简支组合梁交界面滑移的计算公式;通过对组合梁在不同受力阶段的分析,得出了组合梁的承载能力计算公式;分析了由于滑移效应对预应力组合梁的刚度影响效果。并将计算结构与实测结果相比较,吻合较好。
论文通过模型试验和对预应力钢-混凝土组合结构承载能力的分析,为预应力钢-混凝土组合梁的进一步研究提供了数据资料,为预应力钢-混凝土组合梁抗弯性能的进一步研究及理论分析提供参考,具有一定的理论意义和实用价值。
Steel and concrete composite structure are new structures in which the steel and the concrete are integrated by connectors to take advantage of the respective properties of tension and compression. Steel and concrete composite structure have both the advantages of steel structure and concrete structure, remarkable benefit of technology economics and society have been achieved, so it has been widely used in freeway and urban bridge construction. Despite of steel and concrete composite beams have comparatively broad research in home and abroad, but there still are not respective provisions in the Chinese design specifications till now, so these aspects have a great influence on the application of this reasonable structure system. Based on these, the research on the Flexural Capacity of Prestressed steel and concrete composite beams is presented.
Based on comprehensive collection of the existing research documents home and abroad, this paper expounds the factors which influenced the flexural performance of the steel and concrete composite structure, describes the especially important part of the steel and concrete composite structure-- shear connector, which integrate the steel structure and concrete structure
For the sake of analyzing the mechanical properties of prestressed steel-concrete composite beams, the paper carry through model test research which prototyped the Xingguang linking route overpass in Inner Mongolia, study the process of the composite beams being deformed, developed and broken. Then we get the midspan load-deflection curve, the slip of interface curve and strain curve which varies with its profile height. Based on the theory of elastic analysis, we can establish the calculation formula of steel and concrete composite beams which adapt to its bear symmetrical loading; through the analysis to different phase of loading of the composite beams, we can establish the calculation of bearing capacity about composite beams; analyze composit beams rigidity which influenced by slip effect. The results of calculation and testing are consistented.
Through the model load test and bear capacity analysis of prestressed steel-concrete composite beams, the paper provides data information for more studies of prestressed steel-concrete composite beams, provides reference for advanced study and theoretic analysis of flexural performance of prestressed steel-concrete composite beams, and this dissertation has the certain theoretical meaning and practical value.
引文
[1]聂建国.钢-混凝土组合梁结构—试验、理论与应用[M].北京:科学出版社, 2005:44-46
[2]聂建国,樊建生.国内钢-混凝土组合梁的研究及其应用综述[R].北京:第十届全国结构工程学术会议, 2001
[3]聂建国,余志武,钢-混凝土组合梁在我国的研究及应用[J].土木工程学报, 1999, 32(2)
[4]王元清,石永久.大连新世纪大厦钢-混凝土组合结构方案的设计与分析[J].钢结构, 1997. 12(1)
[5]王福春,钢-混凝土组合结构在沈阳市东西快速干道工程中的应用[J].城市道路与防洪. 2002(2)
[6]舒赣平,吕志涛.预应力组合梁的分析和设计计算[J].工业建筑, 1996. 26(5):21-26
[7]舒赣平,吕志涛.预应力钢结构与组合结构的应用和发展[J].工业建筑, 1997. 27(7)1-39
[8]黄侨主编.桥梁钢-混凝土组合结构设计原理.北京:人民交通出版社, 2004
[9]周学军,王敦强.钢与混凝土组合结构设计与施工,济南:山东科学技术出版社, 2004.
[10]李海军,钢-混凝土组合梁桥概率极限状态设计方法研究.长安大学硕士学位论文, 2005
[11]宗周红,车惠民,房贞政.预应力钢-混凝土组合梁受弯承载力简化计算.福州大学学报, 2000 ,28(1) :56-61
[12] GB50017-2003,钢结构设计规范[S].北京:中国计划出版社, 2003
[13]朱聘儒.钢-混凝土组合梁设计原理.北京:中国建筑工业出版社. 1989
[14]陈缔欣.预应力钢-混凝土组合连续梁预加力效应研究[D].福州:福州大学, 2005
[15] J. B. Kennedy, N. F. Grace. Prestressed Continuous composite Bridge under Dynamic loading [J]. Struct. Engrg. ASCE,1990,11(S):1357-1370
[16] K. F. Dunker, R. W. Klaiber, F. K. Daoud, W. W. Sanders. Jr. Strengthening continuous composite bridges [J]. Struct. Engrg. ASCE,1990,116(9):2464-2480
[17] Troitsky,micheal s;Zielinsky,Zenon A;Nour aeyan ,Abdol rahim Pre-tensioned and post oned composi tegirders sourse:journal of Structural and engineering, V115, n12, Dec, 1989, p 3142-3153
[18] Wenxia Tong, H. saadatmanesh. Parametric Study of Continuous Prestressed Composite Girders [J]. Struct. Engrg. ASCE,l992,118(1):186-206
[19] L. Dezi, G. Leomi, AM. Tarantino. Time-Dependent Analytical of Prestressed Composite Beams [J]. Struct. Engrg. ASCE,1995,121(4):621-633
[20]舒赣平,吕志涛,段建中.预应力连续钢梁的理论分析与试验研究[J].东南大学学报, 1994,124 (3) :41-46
[21]宗周红,车惠民,房贞政.预应力钢-混凝土组合梁有限元非线性分析[J].中国公路, 2000,113 (2):48-51
[22]陈艳.预应力钢-混凝土组合连续梁的受力性能[D].福州:福州大学, 2000. 01
[23]郑则群.剪力连接件对预应力钢-混凝土组合梁受力性能影响的研究[D].福州:福州大学, 2001. 01
[24]沈为民,宗周红。预应力组合简支梁试验研究[J]福州大学学报。2001, 29(10): 77-80
[25]宗周红,车慧民。预应力钢-混凝土组合梁有限元非线性分析[J]中国公路学报。2000, 13(4): 48-51
[26]余志武,周凌宇,罗小勇.钢-部分预应力混凝土组合连续梁内力重分布研究[J].建筑结构学报, 2002( 6 ): 64-69
[27]薛伟辰,王骅.钢-混凝土组合梁体外预应力筋极限应力研究[J].建筑结构。2004, 34(4): 57-59
[28]聂建国,周天然,秦凯,高璀旭.预应力钢-混凝土组合梁的抗弯承载力研究[J].工业建筑, 2003, 33(12): 1-5
[29]聂建国,高璀旭,周天然.预应力钢-混凝土组合梁承载力计算方法[J].建筑结构, 2002, (10): 56-59
[30]聂建国,沈聚敏,余志武.考虑滑移效应的钢-混凝土组合梁变形计算的折减刚度法[J].土木工程学报, 1995, (6): 11-17
[31]聂建国,李绍敬,李晨光,刘航.预应力钢-混凝土连续组合梁内力重分布试验研究[J].工业建筑, 2003, 33(12): 12-15
[32]李昆,薛伟辰,李杰.预应力组合梁抗震性能试验研究[J].工程力学增刊, 2001
[33]何池,薛伟辰,李杰.预应力组合梁长期性能试验研究[J].工程力学增刊, 2001
[34]薛伟辰. 1年持续荷载下预应力组合梁的受力性能[[J].桥梁建设, 2003,(2).
[35]聂建国,沈聚敏.滑移效应对钢-混凝土组合梁弯曲强度的影响及其计算.土木工程学报, 1997 , 30(1) :31-36
[36]胡少伟.组合梁抗扭分析与设计[M].北京:人民交通出版社, 2004
[37]聂建国.钢-混组合梁长期变形的计算与分析[J].建筑结构, 1997(1): 42-45
[38]章关永.桥梁结构试验[M].北京:人民交通出版社, 2001. 10
[39]徐挺.相似理论与模型试验[M].北京:中国农业机械出版社, 1982
[40]钟善桐.钢-混凝土组合结构在我国的研究与应用[J].钢结构2000.4(15)
[41]周浩,张勇.浅谈钢-混凝土组合梁的剪力连接件.四川建筑, 2004,24(5):50-53
[42]赵鸿铁.钢与混凝土组合结构[M] .北京:科学出版社, 2001
[43]赵鸿铁.组合结构设计原理[M].北京:高等教育出版社, 2005
[44]潘有昌.单轴对称箱形梁的整体稳定性.全国钢结构标准技术委员会《钢结构论文报告选集》第二册, 1983
[45]周惟德,贾冬云. T型连接件在整体测试中的性能研究.合肥工业大学学报(自然科学版), 1994,17(3):16-21.
[46] O llgaard J G, Slutter R G, Fisher J W. Shearstrength of stud connectors in lightweigh t and normalweight concrete. AISC, 1971 (1) : 55-64
[47]聂建国,谭英,王洪全.钢-高强混凝土组合梁栓钉剪力连接件的设计计算.清华大学学报. 1999 39 (12):94-97
[48]宗周红,车惠民,房贞政.预应力钢-混凝土组合梁受弯承载力简化计算.福州大学学报, 2000 , 28(1) :56-61
[49]聂建国,沈聚敏,余志武.考虑滑移效应的钢-混凝土组合梁变形计算的折减刚度法[J].土木工程学报, 1995, (6): 11-17
[50]聂建国,沈聚敏.滑移效应对钢-混凝土组合梁弯曲强度的影响及其计算.土木工程学报, 1997 ,30(1) :31-36
[51]陈惠发.梁-柱分析与设计.北京:人民交通出版社, 1997
[52]宗周红.预应力钢-混凝土组合梁静动载行为研究[D].西南交通大学博士学位论文.成都: 1998
[53]郝文化. ANSYS土木工程应用实例[M].北京:中国水利水电出版社, 2005
[2]聂建国,樊建生.国内钢-混凝土组合梁的研究及其应用综述[R].北京:第十届全国结构工程学术会议, 2001
[3]聂建国,余志武,钢-混凝土组合梁在我国的研究及应用[J].土木工程学报, 1999, 32(2)
[4]王元清,石永久.大连新世纪大厦钢-混凝土组合结构方案的设计与分析[J].钢结构, 1997. 12(1)
[5]王福春,钢-混凝土组合结构在沈阳市东西快速干道工程中的应用[J].城市道路与防洪. 2002(2)
[6]舒赣平,吕志涛.预应力组合梁的分析和设计计算[J].工业建筑, 1996. 26(5):21-26
[7]舒赣平,吕志涛.预应力钢结构与组合结构的应用和发展[J].工业建筑, 1997. 27(7)1-39
[8]黄侨主编.桥梁钢-混凝土组合结构设计原理.北京:人民交通出版社, 2004
[9]周学军,王敦强.钢与混凝土组合结构设计与施工,济南:山东科学技术出版社, 2004.
[10]李海军,钢-混凝土组合梁桥概率极限状态设计方法研究.长安大学硕士学位论文, 2005
[11]宗周红,车惠民,房贞政.预应力钢-混凝土组合梁受弯承载力简化计算.福州大学学报, 2000 ,28(1) :56-61
[12] GB50017-2003,钢结构设计规范[S].北京:中国计划出版社, 2003
[13]朱聘儒.钢-混凝土组合梁设计原理.北京:中国建筑工业出版社. 1989
[14]陈缔欣.预应力钢-混凝土组合连续梁预加力效应研究[D].福州:福州大学, 2005
[15] J. B. Kennedy, N. F. Grace. Prestressed Continuous composite Bridge under Dynamic loading [J]. Struct. Engrg. ASCE,1990,11(S):1357-1370
[16] K. F. Dunker, R. W. Klaiber, F. K. Daoud, W. W. Sanders. Jr. Strengthening continuous composite bridges [J]. Struct. Engrg. ASCE,1990,116(9):2464-2480
[17] Troitsky,micheal s;Zielinsky,Zenon A;Nour aeyan ,Abdol rahim Pre-tensioned and post oned composi tegirders sourse:journal of Structural and engineering, V115, n12, Dec, 1989, p 3142-3153
[18] Wenxia Tong, H. saadatmanesh. Parametric Study of Continuous Prestressed Composite Girders [J]. Struct. Engrg. ASCE,l992,118(1):186-206
[19] L. Dezi, G. Leomi, AM. Tarantino. Time-Dependent Analytical of Prestressed Composite Beams [J]. Struct. Engrg. ASCE,1995,121(4):621-633
[20]舒赣平,吕志涛,段建中.预应力连续钢梁的理论分析与试验研究[J].东南大学学报, 1994,124 (3) :41-46
[21]宗周红,车惠民,房贞政.预应力钢-混凝土组合梁有限元非线性分析[J].中国公路, 2000,113 (2):48-51
[22]陈艳.预应力钢-混凝土组合连续梁的受力性能[D].福州:福州大学, 2000. 01
[23]郑则群.剪力连接件对预应力钢-混凝土组合梁受力性能影响的研究[D].福州:福州大学, 2001. 01
[24]沈为民,宗周红。预应力组合简支梁试验研究[J]福州大学学报。2001, 29(10): 77-80
[25]宗周红,车慧民。预应力钢-混凝土组合梁有限元非线性分析[J]中国公路学报。2000, 13(4): 48-51
[26]余志武,周凌宇,罗小勇.钢-部分预应力混凝土组合连续梁内力重分布研究[J].建筑结构学报, 2002( 6 ): 64-69
[27]薛伟辰,王骅.钢-混凝土组合梁体外预应力筋极限应力研究[J].建筑结构。2004, 34(4): 57-59
[28]聂建国,周天然,秦凯,高璀旭.预应力钢-混凝土组合梁的抗弯承载力研究[J].工业建筑, 2003, 33(12): 1-5
[29]聂建国,高璀旭,周天然.预应力钢-混凝土组合梁承载力计算方法[J].建筑结构, 2002, (10): 56-59
[30]聂建国,沈聚敏,余志武.考虑滑移效应的钢-混凝土组合梁变形计算的折减刚度法[J].土木工程学报, 1995, (6): 11-17
[31]聂建国,李绍敬,李晨光,刘航.预应力钢-混凝土连续组合梁内力重分布试验研究[J].工业建筑, 2003, 33(12): 12-15
[32]李昆,薛伟辰,李杰.预应力组合梁抗震性能试验研究[J].工程力学增刊, 2001
[33]何池,薛伟辰,李杰.预应力组合梁长期性能试验研究[J].工程力学增刊, 2001
[34]薛伟辰. 1年持续荷载下预应力组合梁的受力性能[[J].桥梁建设, 2003,(2).
[35]聂建国,沈聚敏.滑移效应对钢-混凝土组合梁弯曲强度的影响及其计算.土木工程学报, 1997 , 30(1) :31-36
[36]胡少伟.组合梁抗扭分析与设计[M].北京:人民交通出版社, 2004
[37]聂建国.钢-混组合梁长期变形的计算与分析[J].建筑结构, 1997(1): 42-45
[38]章关永.桥梁结构试验[M].北京:人民交通出版社, 2001. 10
[39]徐挺.相似理论与模型试验[M].北京:中国农业机械出版社, 1982
[40]钟善桐.钢-混凝土组合结构在我国的研究与应用[J].钢结构2000.4(15)
[41]周浩,张勇.浅谈钢-混凝土组合梁的剪力连接件.四川建筑, 2004,24(5):50-53
[42]赵鸿铁.钢与混凝土组合结构[M] .北京:科学出版社, 2001
[43]赵鸿铁.组合结构设计原理[M].北京:高等教育出版社, 2005
[44]潘有昌.单轴对称箱形梁的整体稳定性.全国钢结构标准技术委员会《钢结构论文报告选集》第二册, 1983
[45]周惟德,贾冬云. T型连接件在整体测试中的性能研究.合肥工业大学学报(自然科学版), 1994,17(3):16-21.
[46] O llgaard J G, Slutter R G, Fisher J W. Shearstrength of stud connectors in lightweigh t and normalweight concrete. AISC, 1971 (1) : 55-64
[47]聂建国,谭英,王洪全.钢-高强混凝土组合梁栓钉剪力连接件的设计计算.清华大学学报. 1999 39 (12):94-97
[48]宗周红,车惠民,房贞政.预应力钢-混凝土组合梁受弯承载力简化计算.福州大学学报, 2000 , 28(1) :56-61
[49]聂建国,沈聚敏,余志武.考虑滑移效应的钢-混凝土组合梁变形计算的折减刚度法[J].土木工程学报, 1995, (6): 11-17
[50]聂建国,沈聚敏.滑移效应对钢-混凝土组合梁弯曲强度的影响及其计算.土木工程学报, 1997 ,30(1) :31-36
[51]陈惠发.梁-柱分析与设计.北京:人民交通出版社, 1997
[52]宗周红.预应力钢-混凝土组合梁静动载行为研究[D].西南交通大学博士学位论文.成都: 1998
[53]郝文化. ANSYS土木工程应用实例[M].北京:中国水利水电出版社, 2005