有粘结预应力空腹式钢骨混凝土梁受力性能研究
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摘要
预应力钢骨混凝土结构(PSRC)是一种新的结构型式,具有同钢骨混凝土结构(SRC)一样的特点：承载能力大,刚度好,抗震性能优良等。它分为实腹式和空腹式两种,兼具了钢结构和混凝土结构的优点,对于受弯构件而言,钢骨混凝土结构仍然具有变形大、在连续梁等超静定结构的负弯矩区域混凝土处于受拉等缺点,预应力钢骨混凝土结构正是克服了这些缺点,减少或防止了混凝土组合梁在静荷载和施加活荷载作用下发生开裂,增加组合梁刚度、减少组合梁挠度和防止钢筋锈蚀等,具有钢与混凝土组合结构与预应力结构的优点,充分发挥了钢结构,约束核心混凝土,预应力技术和空间结构等诸多优越性。为此弄清预应力钢骨混凝土结构机理对应用和推广这种结构具有重要意义。
近年来,许多专家学者对预应力组合梁工作性能进行了研究,但对有粘结预应力钢骨混凝土梁的研究比较少,通过本文的分析,能为工程设计及应用提供一定的技术支持。
本文采用理论分析和数值计算相结合的方法给出了有粘结预应力钢骨混凝土简支梁受力性能；给出了直线布筋的在不同受力阶段各截面的应力计算公式,建立了有粘结预应力钢骨混凝土简支梁的抗裂承载力、弹性抗弯承载力、极限抗弯承载力的计算公式；给出了有粘结预应力钢骨混凝土连续梁在不同力学阶段截面的应力计算方法,建立了其开裂承载力、弹性抗弯承载力和极限抗弯承载力的计算公式；利用合成法,编制了有粘结预应力钢骨混凝土简支梁的非线性全过程分析程序,计算了有粘结预应力钢骨混凝土梁的弯矩—曲率、荷载—变形的关系曲线,探讨了其影响因素。
Prestressed steel reinforced concrete structure is a new structure type, including the same features as the SRC:large bearing capacity, good rigidity, good seismic behavior and so on. It is divided into two kinds:solid-web and open-spandrel, and It combines the merits of the steel structure and the concrete structure. For the flexural member, the SRC structure still has some disadvantages, such as large distortion, tension concrete plate in negative bending moment section of statically indeterminable structure like continuous beam and so on. PSRC structure overcomes these defects, decreases or prevents cracks of the composite girder in dead loads and live loads, increases rigidity of the composite girder, reduces deflections of the composite girder and prevents the Corrosion of the steel bar. It fully exerts the superiority of the steel structure, constrained core concrete, prestress technology and spatial structure. So the study of the Structure Mechanism of the prestressed SRS has important significance for the application and popularization of this type of structure.
Recently, many experts and scholars have worked on the mechanical analysis of prestressed composite girders, but there are fewer studies on this type of bonded prestressed SRC composite girders. The analysis of this thesis can provide some technical supporting in the engineering design and applying.
In this paper, the mechanical properties of bonded prepressed steel reinforced concrete beam are studied by the methods of theory analysis and numerical evaluation. For the simply supported bonded PSRC, formulas for calculating stress of the section in different loading stage of the beam with linear bar-arrangement; the calculation formula of anti-crack capacity, elastic flexural bearing capacity and ultimate flexural bearing capacity is established. For the continuous bonded PSRC, formulas for calculating stress of the section in different loading stage of the beam with linear bar-arrangement; the calculation formula of anti-crack capacity, elastic flexural bearing capacity and ultimate flexural bearing capacity is established. The nonlinear analysis program of bonded prepressed steel reinforced concrete beams is developed. The curve of the bending moment-curvature and load-deformation are received, and the influencing factors are discussed.
近年来,许多专家学者对预应力组合梁工作性能进行了研究,但对有粘结预应力钢骨混凝土梁的研究比较少,通过本文的分析,能为工程设计及应用提供一定的技术支持。
本文采用理论分析和数值计算相结合的方法给出了有粘结预应力钢骨混凝土简支梁受力性能；给出了直线布筋的在不同受力阶段各截面的应力计算公式,建立了有粘结预应力钢骨混凝土简支梁的抗裂承载力、弹性抗弯承载力、极限抗弯承载力的计算公式；给出了有粘结预应力钢骨混凝土连续梁在不同力学阶段截面的应力计算方法,建立了其开裂承载力、弹性抗弯承载力和极限抗弯承载力的计算公式；利用合成法,编制了有粘结预应力钢骨混凝土简支梁的非线性全过程分析程序,计算了有粘结预应力钢骨混凝土梁的弯矩—曲率、荷载—变形的关系曲线,探讨了其影响因素。
Prestressed steel reinforced concrete structure is a new structure type, including the same features as the SRC:large bearing capacity, good rigidity, good seismic behavior and so on. It is divided into two kinds:solid-web and open-spandrel, and It combines the merits of the steel structure and the concrete structure. For the flexural member, the SRC structure still has some disadvantages, such as large distortion, tension concrete plate in negative bending moment section of statically indeterminable structure like continuous beam and so on. PSRC structure overcomes these defects, decreases or prevents cracks of the composite girder in dead loads and live loads, increases rigidity of the composite girder, reduces deflections of the composite girder and prevents the Corrosion of the steel bar. It fully exerts the superiority of the steel structure, constrained core concrete, prestress technology and spatial structure. So the study of the Structure Mechanism of the prestressed SRS has important significance for the application and popularization of this type of structure.
Recently, many experts and scholars have worked on the mechanical analysis of prestressed composite girders, but there are fewer studies on this type of bonded prestressed SRC composite girders. The analysis of this thesis can provide some technical supporting in the engineering design and applying.
In this paper, the mechanical properties of bonded prepressed steel reinforced concrete beam are studied by the methods of theory analysis and numerical evaluation. For the simply supported bonded PSRC, formulas for calculating stress of the section in different loading stage of the beam with linear bar-arrangement; the calculation formula of anti-crack capacity, elastic flexural bearing capacity and ultimate flexural bearing capacity is established. For the continuous bonded PSRC, formulas for calculating stress of the section in different loading stage of the beam with linear bar-arrangement; the calculation formula of anti-crack capacity, elastic flexural bearing capacity and ultimate flexural bearing capacity is established. The nonlinear analysis program of bonded prepressed steel reinforced concrete beams is developed. The curve of the bending moment-curvature and load-deformation are received, and the influencing factors are discussed.
引文
1.谢醒悔,韩选江,叶湘菡.现代予力混凝土结构设计理论及应用[M],北京：机械工业出版社,2006
2.房贞政.无粘结与部分预应力结构[M],北京：人民交通出版社,1999
3.竺存宏,李广远.预弯复合梁的设计与施工[M],北京：人民交通出版社,1993
4.徐亚丰.钢骨—钢管混凝土压弯构件受力性能分析.博士后研究工作报告,东北大学,2006.
5.贾金青,赵国藩.钢骨高强混凝土短柱力学性能[M].大连：大连理工大学出版社,2006.
6.白国良,秦福华.型钢钢筋混凝土原理与设计[M],上海：科学技术出版社,2000
7. R.P.Johnson. Composite structures of steel and concrete[M], Halsted Press, New York, 1975
8.中华人民共和国行业标准,型钢混凝土组合结构设计规程(JGJ138-2001),北京：中国建筑工业出版社,2002
9. British Standard Institution, Steel Concrete and Composite Building Part5, Code of Practice for design of Composite Bridges,1979
10. ACI-ASCE 333, Tentative Recommendation for Design of Composite Beams and Girders for Bulildings, Proceeding of ASCE, ST12,1960
11.日本建筑学会.冯乃谦,叶列平,陈延年,石云兴译.钢骨钢筋混凝土结构计算标准及解说[M],原子能出版社,1998
12. Moore W P. Composite construction in steel and concrete[M], New York:ASCE,1987
13. Ivan M V, Joseph P C. Composite construction design for building[M], New York: McGraw-Hill Co-published by ASCE,1997
14.赵世春.型钢混凝土组合结构计算原理[M],成都：西南交通大学出版社,2004
15.劳埃·杨.钢—混凝土组合结构设计[M],上海：通同济大学出版社,1991
16.刘大海,杨翠如.型钢(钢管)混凝土高楼计算和构造[M],北京：中国建筑工业出版社,2003
17.王连广.钢与混凝土组合结构理论与计算[M],北京：科学出版社,2005
18.王连广,刘之洋.型钢混凝土结构在国内外研究与研究进展[J],东北大学学报, 1995,21(3)：93-94
19.张顺利.钢骨混凝土结构的研究进展综述[J],山西建筑,2007,33(27)：87-88
20.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,2005,17(3)：189-190
21.于庆荣,姜维山,高永孚,徐天禄.型钢混凝土结构在我国的发展[J],天津建设科技,2003,300072(5)：8-9
22.宋玉普.新型预应力混凝土结构[M],北京：机械工业出版社,2005
23.刘燕飞,程新春,李承章.预应力技术的发展[J],工程建设与档案,2005,19(2)
24.郭正兴.预应力技术的新发展[J],中华建筑报,2003,32(7)
25.傅传国,娄宇.预应力型钢混凝土结构试验研究及工程应用[M],北京：科学出版社,2005
26.吴培明.混凝土结构(上册)[M],武汉：武汉工业大学出版社,2001.8,161-165
27.朱瑞.预应力混凝土工业技术及其现代化[M],北京：中国铁道出版社,2002
28.H.尼尔森著,姚玲森,沈莲芬译.预应力混凝土设计[M],北京：人民交通出版社,1984
29.杜拱辰.现代预应力混凝土结构[M],北京：中国建筑工业出版社,1988
30.洪英维,李宏波.预应力钢—混凝土组合梁的应用研究[J],建筑技术开发,2004,31(9)：20-22
31.王龙,刘惠萍.预应力混凝土超静定结构中次弯矩的合理利用[J],山西建筑,2006,32(19)
32．王有志.预应力混凝土结构[M],北京：中国水利电力出版社,1999
33.叶列平,方鄂华.钢骨混凝土构件的受力性能研究综述[J],土木工程学报,2000,33(5)：1-11
34.胡翔,薛伟辰.预应力钢骨混凝土梁研究与应用进展[J],建筑技术,2006,37(5)：336-339
35.冯大斌.预应力技术的创新与应用[J],预应力技术,2005,3(50)：32-35
36.尹超.用力法计算预应力钢筋混凝土连续梁[J],四川建筑科学研究,2006,32(2)
37.蒋丽娜.矩形和T型截面受弯构件承载力计算[J],广西工学院学报,1995,6(2)
38.H.尼尔森著,姚玲森,沈莲芬译.预应力混凝土设计[M],北京：人民交通出版社,1984
39.薛建阳.刚与混凝土组合结构[M],武汉：华中科技大学出版社,2006
40.王连广,李立新,王德选.钢与混凝土组合结构非线性分析[M],沈阳：东北大学 出版社,2000
41.吕西林.钢筋混凝土结构非线性有限元理论与应用[M],上海：同济大学出版社,1999
42.朱伯龙.钢筋混凝土非线性分析[M],上海：同济大学出版社,1986
43.王连广,李立新,周风雨.钢骨混凝土梁非线性有限元分析[J],沈阳建筑工程学院学报,2001,17(1)
2.房贞政.无粘结与部分预应力结构[M],北京：人民交通出版社,1999
3.竺存宏,李广远.预弯复合梁的设计与施工[M],北京：人民交通出版社,1993
4.徐亚丰.钢骨—钢管混凝土压弯构件受力性能分析.博士后研究工作报告,东北大学,2006.
5.贾金青,赵国藩.钢骨高强混凝土短柱力学性能[M].大连：大连理工大学出版社,2006.
6.白国良,秦福华.型钢钢筋混凝土原理与设计[M],上海：科学技术出版社,2000
7. R.P.Johnson. Composite structures of steel and concrete[M], Halsted Press, New York, 1975
8.中华人民共和国行业标准,型钢混凝土组合结构设计规程(JGJ138-2001),北京：中国建筑工业出版社,2002
9. British Standard Institution, Steel Concrete and Composite Building Part5, Code of Practice for design of Composite Bridges,1979
10. ACI-ASCE 333, Tentative Recommendation for Design of Composite Beams and Girders for Bulildings, Proceeding of ASCE, ST12,1960
11.日本建筑学会.冯乃谦,叶列平,陈延年,石云兴译.钢骨钢筋混凝土结构计算标准及解说[M],原子能出版社,1998
12. Moore W P. Composite construction in steel and concrete[M], New York:ASCE,1987
13. Ivan M V, Joseph P C. Composite construction design for building[M], New York: McGraw-Hill Co-published by ASCE,1997
14.赵世春.型钢混凝土组合结构计算原理[M],成都：西南交通大学出版社,2004
15.劳埃·杨.钢—混凝土组合结构设计[M],上海：通同济大学出版社,1991
16.刘大海,杨翠如.型钢(钢管)混凝土高楼计算和构造[M],北京：中国建筑工业出版社,2003
17.王连广.钢与混凝土组合结构理论与计算[M],北京：科学出版社,2005
18.王连广,刘之洋.型钢混凝土结构在国内外研究与研究进展[J],东北大学学报, 1995,21(3)：93-94
19.张顺利.钢骨混凝土结构的研究进展综述[J],山西建筑,2007,33(27)：87-88
20.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,2005,17(3)：189-190
21.于庆荣,姜维山,高永孚,徐天禄.型钢混凝土结构在我国的发展[J],天津建设科技,2003,300072(5)：8-9
22.宋玉普.新型预应力混凝土结构[M],北京：机械工业出版社,2005
23.刘燕飞,程新春,李承章.预应力技术的发展[J],工程建设与档案,2005,19(2)
24.郭正兴.预应力技术的新发展[J],中华建筑报,2003,32(7)
25.傅传国,娄宇.预应力型钢混凝土结构试验研究及工程应用[M],北京：科学出版社,2005
26.吴培明.混凝土结构(上册)[M],武汉：武汉工业大学出版社,2001.8,161-165
27.朱瑞.预应力混凝土工业技术及其现代化[M],北京：中国铁道出版社,2002
28.H.尼尔森著,姚玲森,沈莲芬译.预应力混凝土设计[M],北京：人民交通出版社,1984
29.杜拱辰.现代预应力混凝土结构[M],北京：中国建筑工业出版社,1988
30.洪英维,李宏波.预应力钢—混凝土组合梁的应用研究[J],建筑技术开发,2004,31(9)：20-22
31.王龙,刘惠萍.预应力混凝土超静定结构中次弯矩的合理利用[J],山西建筑,2006,32(19)
32．王有志.预应力混凝土结构[M],北京：中国水利电力出版社,1999
33.叶列平,方鄂华.钢骨混凝土构件的受力性能研究综述[J],土木工程学报,2000,33(5)：1-11
34.胡翔,薛伟辰.预应力钢骨混凝土梁研究与应用进展[J],建筑技术,2006,37(5)：336-339
35.冯大斌.预应力技术的创新与应用[J],预应力技术,2005,3(50)：32-35
36.尹超.用力法计算预应力钢筋混凝土连续梁[J],四川建筑科学研究,2006,32(2)
37.蒋丽娜.矩形和T型截面受弯构件承载力计算[J],广西工学院学报,1995,6(2)
38.H.尼尔森著,姚玲森,沈莲芬译.预应力混凝土设计[M],北京：人民交通出版社,1984
39.薛建阳.刚与混凝土组合结构[M],武汉：华中科技大学出版社,2006
40.王连广,李立新,王德选.钢与混凝土组合结构非线性分析[M],沈阳：东北大学 出版社,2000
41.吕西林.钢筋混凝土结构非线性有限元理论与应用[M],上海：同济大学出版社,1999
42.朱伯龙.钢筋混凝土非线性分析[M],上海：同济大学出版社,1986
43.王连广,李立新,周风雨.钢骨混凝土梁非线性有限元分析[J],沈阳建筑工程学院学报,2001,17(1)