钢-混凝土组合梁的研究与展望
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摘要
介绍国内外叠合式钢-混凝土组合梁应用及研究成果,分析这种组合梁存在的主要问题,重点探讨各种最新研究的型钢-混凝土组合梁的受力及变形特点,在分析的基础上,认为加强钢-混凝土间的锚固、纵向截面的抗剪承载力以及斜截面的抗剪承载力是叠合式钢-混凝土组合梁发展应解决的关键问题,提出的新型组合梁加强了钢与混凝土间的粘结,提高了结构的抗剪能力及抵抗变形的能力,加强了结构的整体性及抗火能力
The applications of steel-concrete composite beams are introduced. The main problems of this type of composite beams, especially the characteristic of the force and deformation of the newly developed steel-concrete composite beams are analyzed. Based on the analysis, it is proposed that the increase of the bond strength between concrete and steel, shearing force in longitudinal section and resisting shearing force of inclined section are key issues in the development and applications of steel-concrete composite beams. A new-style composite beam is designed which will not only strengthen the coherence of steel-concrete but also increase the ability of resisting deformation and shearing forces, resisting fire, and keeping integrity of structure as well.
The applications of steel-concrete composite beams are introduced. The main problems of this type of composite beams, especially the characteristic of the force and deformation of the newly developed steel-concrete composite beams are analyzed. Based on the analysis, it is proposed that the increase of the bond strength between concrete and steel, shearing force in longitudinal section and resisting shearing force of inclined section are key issues in the development and applications of steel-concrete composite beams. A new-style composite beam is designed which will not only strengthen the coherence of steel-concrete but also increase the ability of resisting deformation and shearing forces, resisting fire, and keeping integrity of structure as well.
引文
[1] 聂建国,余志斌.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):3-8NIEJian guo,YUZhi bin.Researchandpracticeofcompositesteel concretebeamsinChina[J].ChainCivilEngineeringJournal,1999,32(2):3-8 (inChinese)
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[4] 钟新谷,舒小娟.钢-混凝土组合梁正截面承载力的初步研究[J].土木工程学报,2002,35(6):73-78ZHONGXin gu,SHUXiao juan.Resachonbearingcapacityofbox concretecompositebeams[J].ChainCivilEngineeringJournal,2002,35(6):73-78 (inChinese)
[5] Shun ichiNakamura.BendingbehaviorofcompositegirderswithcoldformedsteelUsection[J].JournalofStructuralEngineering,2002,128(9):1169-1176
[6] 林于东,宗周红.帽型截面钢-混凝土组合梁受弯强度[J].工业建筑,2002,32(9):11-14LINYu dong,ZONGZhou hong.Bendingstrengthofcap stylesectionofsteel concretecompositebeam[J].IndustrialConstruction,2002,32(9):11-14 (inChinese)
[7] 范旭红,石启印 结构地震反应分析的状态空间法[J] 江苏大学学报(自然科学版),2003,24(4):74-77FANXu hong,SHIQi yin.Statespaceequationmethodintheseismicresponseanalysis[J].JournalofJiangsuUniversity(NaturalScienceEdition),2003,24(4):74-77 (inChinese)
[2] Shun ichiNakamura.Constructionconsiderationsforcompositesteel and concretefloorsystems[J].JournalofStructuralEngineering,2002,128(9):1099-1110
[3] 顾 萍,陈世鸣.连续组合梁的局部失稳与弯矩重分布[J].工业建筑,2002,32(9):5-7GUPing,CHENShi ming.Localbuckingandmomentredistributionincontinousbeams[J].IndustrialConstruction,2002,32(9):5-7 (inChinese)
[4] 钟新谷,舒小娟.钢-混凝土组合梁正截面承载力的初步研究[J].土木工程学报,2002,35(6):73-78ZHONGXin gu,SHUXiao juan.Resachonbearingcapacityofbox concretecompositebeams[J].ChainCivilEngineeringJournal,2002,35(6):73-78 (inChinese)
[5] Shun ichiNakamura.BendingbehaviorofcompositegirderswithcoldformedsteelUsection[J].JournalofStructuralEngineering,2002,128(9):1169-1176
[6] 林于东,宗周红.帽型截面钢-混凝土组合梁受弯强度[J].工业建筑,2002,32(9):11-14LINYu dong,ZONGZhou hong.Bendingstrengthofcap stylesectionofsteel concretecompositebeam[J].IndustrialConstruction,2002,32(9):11-14 (inChinese)
[7] 范旭红,石启印 结构地震反应分析的状态空间法[J] 江苏大学学报(自然科学版),2003,24(4):74-77FANXu hong,SHIQi yin.Statespaceequationmethodintheseismicresponseanalysis[J].JournalofJiangsuUniversity(NaturalScienceEdition),2003,24(4):74-77 (inChinese)
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