|
|
|
Numerical analysis on interface behavior of
adhesive bonded steel-concrete composite beams |
| WANG Yu-qiang1,ZHANG Kuan-di2,CHEN Xiao-dong1 |
1. Department of Hydraulic Engineering,Zhejiang University of Water Resources and Electric Power,
Hangzhou 310018,China ;2.College of Water Conservancy and Architectural Engineering, Northwest
Agricultural and Forestry University, Yangling 712100,China |
|
|
|
Abstract The shear-slip behavior of adhesive/concrete interface was simulated by using the spring element with a damage-type law from the push-out experiment data. A three-dimensional nonlinear finite element model for the adhesive bonded steel-concrete composite beams was proposed. Based on the simulation results, the bonding stress distribution and the debonding process in the adhesive/concrete interface were revealed. Adhesive with less value of elastic modulus makes the shear transformation more evenly, but it may induce a bigger relative slip between the concrete slab and the steel girder, which may impair the carrying capacity of the composite beams. Numerical results reveal that the debonding failure is a typical brittle destroy process with a catastrophic failure of the composite beams and must be paid enough attention during the design process．
|
|
Published: 01 September 2013
|
|
|
胶黏钢-混凝土组合梁的界面行为数值分析
根据推出的试验测试数据,将黏胶/混凝土界面的剪切-滑移行为用具备损伤本构关系的弹簧单元来模拟,建立胶黏钢-混凝土组合梁的三维非线性有限元模型.基于模拟结果,揭示了组合梁黏胶/混凝土界面的黏结应力分布规律及脱胶剥离过程.分析结果表明：弹性模量小的黏胶剂更有利于界面的剪力均匀传递,但会引起混凝土板和钢梁间产生大的相对滑动,导致结构整体承载力降低.胶黏组合梁的界面脱胶剥离是一个突发的典型脆性破坏过程,会产生灾难性后果,在设计过程中需引起足够重视.
|
|
| ［1］ 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): 3-8．
NIE Jian-guo,YU Zhi-wu. Research and practice of composite steel-concrete beams in China ［J］. China Civil Engineering Journal, 1999, 32(2): 3-8．
［2］ 蒋秀根, 剧锦三, 傅向荣. 考虑滑移效应的钢-混凝土组合梁弹性应力计算［J］. 工程力学, 2007, 24(1): 143-146．
JIANG Xiu-gen,JU Jin-san, FU Xiang-rong. Analysis of elastic stress of composite steel-concrete beams considering slip effect［J］. Engineering Mechanics, 2007, 24(1): 143-146．
［3］ SWAMY R N, JONES R, BLOXHAM J W. Structural behaviour of reinforced concrete beams strengthened by epoxy-boned steel plates［J］. Structural Engineer: Part A, 1987, 65(2): 59-68．
［4］ LU X Z, TENG J G, YE L P, JIANG J J. Bond-slip models for FRP sheets/plates bonded to concrete［J］. Engineering Structures, 2005, 27(6): 920-937．
［5］ FERRIER E, QUIERTANT M, BENZARTI K, et al. Influence of the properties of externally bonded CFRP on the shear behavior of concrete/composite adhesive joints［J］. Composites Part B: Engineering, 2010, 41(5): 354-362．
［6］ YUAN H, TENG J G, SERACINO R, et al. Full-range behavior of FRP-to-concrete bonded joints［J］. Engineering Structures, 2004, 26(5): 553-565．
［7］ NORDIN H, TLJSTEN B. Testing of hybrid FRP composite beams in bending［J］. Composites Part B: Engineering, 2004, 35(1): 27-33．
［8］ BOUAZAOUI L, PERRRNOT G, DELMAS Y, et al. Experimental study of bonded steel concrete composite structures［J］. Journal of Constructional Steel Research, 2007, 63: 1268-1278．
［9］ THOMANN M, LEBET J P. A mechanical model for connections by adherence for steel-concrete composite beams［J］. Engineering Structures, 2008, 30(1): 163-173．
［10］ ZHAO G, LI A. Numerical study of a bonded steel and concrete composite beam［J］. Computers and Structures, 2008, 86: 18301838．
［11］ SI LARBI A, FERRIER E, JURKIEWIEZ B, et al . Static behaviour of steel concrete beam connected by bonding［J］. Engineering Structures, 2007, 29(6): 1034-1042．
［12］ BERTHET J F, YURTDAS I, DELMAS Y, et al. Evaluation of the adhesion resistance between steel and concrete by push out test［J］. International Journal of Adhesion and Adhesives, 2011, 31(2): 75-83．
［13］ Eurocode 4. Design of composite steel and concrete structures, Part 1-1: General rules and rules for buildings［S］. London ：European Committee for Standardization (CEN), 2004．
［14］ CARREIRA D J, CHU K H. Stress-strain relationship for plain concrete in compression［J］. ACI Journal Proceedings, 1985, 82(6): 797-804．
［15］ ACI 318R-08. Building code requirements for structural concrete and commentary［S］. Farmington Hills, MI ：American Concrete Institute, 2008． |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
