钢箱-混凝土组合梁试验研究与承载能力计算

英文篇名：TEST RESEARCH AND BEARING CAPACITY CALCULATION OF CONCRETE PARTIALLY FILLED STEEL BOX BEAM
中文刊名：工业建筑
英文刊名：Industrial Construction
作者：莫时旭 ; 钟新谷 ; 舒小娟 ; 赵人达
英文作者：Mo Shixu Zhong Xingu Shu Xiaojuan(Hunan University of Science and Technology Xiangtan 411201)Zhao Renda(Southwest Jiaotong University Chengdu 610000)
中文关键词：组合结构 ; 钢箱-混凝土梁 ; 试验 ; 弯矩-位移 ; 承载能力
英文关键词：composite structure concrete-partial-filled steel box beam test load-displacement loading capacity
出版日期：2006-12-30
机构：湖南科技大学土木工程学院,湖南科技大学土木工程学院,湖南科技大学土木工程学院,西南交通大学土木工程学院湘潭411201,湘潭411201,湘潭411201,成都610000
年：2006
期：S1
出版单位：工业建筑

摘要

对钢箱-混凝土组合梁这一新的结构形式进行了试验研究,通过4个钢箱-混凝土组合梁和2个钢箱梁试件的试验,考察了试验梁破坏过程、弯矩-位移曲线、弯矩-应变曲线、截面应变分布等。试验结果表明,钢箱-混凝土组合梁具有较高的承载能力、刚度和良好的延性。考虑混凝土受钢箱约束的强度提高和钢箱顶板局部屈曲影响,提出了钢箱-混凝土组合梁抗弯承载能力计算公式,计算结果与试验结果吻合良好。
The experiment of the new type of concrete-filled steel box beam was performed.Four concrete-filled steel box beams and two steel box beams were tested to investigate the damage mode,load-displacement relationship,load-strain relationship and strain distribution of section.Test results show that concretefilled steel box beam possess high bearing capacity and rigidity and good ductility.Considering the strength raise of concrete by restraint of steel box and the local buckling of top plate of the box,the calculated formula of bearing capacity of concrete-filled steel box beam is proposed.The calculated result agrees well with that of the test.

引文

1韩林海.钢管混凝土.北京:科学技术出版社,2000
    2 Kitada T.Ultimate Strength and Ductility of State-of-the-ArtConcrete-Filled Steel Bridge Piers in Japan.Engineering Struc-tures,1998,20(4-6):347-356
    3 Shun-ichi Nakamura,Yoshiyuki Momiyama,Tetsuya Hosaka,et al.New Technologies of Steel/Concrete Composite Bridges.Journal ofConstructional Steel Research,2002,58:99-130
    4 Brian Uy.Strength of Concrete Filled Steel Box Columns Incorpo-rating Local Buckling.Journal of Structural Engineering,ASCE,2000,126(3):341-352
    5 Amit H Varma,James M Ricles,Richard Sause,et al.ExperimentalBehavior of High Strength Square Concrete-Filled Tube Beam-Columns.Journal of Structural Engineering,ASCE,2002,128(3):309-318
    6 Susantha K.A.S,Ge Hanbin,Tsutomu Usami.Uniaxial Stress-Strain Relationship of Concrete Confined by Various Shaped SteelTubes.Engineering Structural,2001,23:1331-1347
    7张正国.方钢管混凝土偏压短柱基本性能研究.建筑结构学报,1989(9):10-20
    8吕西林,陆伟东.反复荷载作用下方钢管混凝土柱的抗震性能试验研究.建筑结构学报,2000(4):2-11
    9杨有福,韩林海.矩形钢管混凝土构件抗弯力学性能的试验研究.地震工程与工程振动,2001,9(3):41-48
    10陈联盟,庄一舟,朱晗迓.预应力钢管混凝土组合结构受弯构件弹塑性计算分析及应用.工业建筑,2004(2):56-58
    11钟新谷,舒小娟,郑玉国,等.钢箱-混凝土组合梁正截面承载力的初步研究.土木工程学报,2002,35(6):73-79
    12 Wright H D.Local Stability of Filled and Encased Steel Sections.Journal of Structural Engineering,ASCE,1995,121(10):8-1382
    13何保康,杨晓冰,周天华.矩形钢管混凝土轴压柱局部屈曲性能的解析分析.西安建筑科技大学学报,2002(3):210-213
    14莫时旭,钟新谷,赵人达.刚性基底上弹性约束矩形板屈曲行为.工程力学,2005,22(2):174-178