Source Journal for Chinese Scientific and Technical Papers
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Volume 50 Issue 8
Oct.  2020
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Article Contents
GUO Zhen, MA Zhangyong, LIU Yan, YANG Boyi, DENG Peng. ANALYSIS OF COMPRESSIVE BEARING CAPACITY OF DAMAGED TUBULAR T-JOINTS REINFORCED BY CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(8): 166-171. doi: 10.13204/j.gyjzG20041404
Citation: GUO Zhen, MA Zhangyong, LIU Yan, YANG Boyi, DENG Peng. ANALYSIS OF COMPRESSIVE BEARING CAPACITY OF DAMAGED TUBULAR T-JOINTS REINFORCED BY CFRP SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(8): 166-171. doi: 10.13204/j.gyjzG20041404

ANALYSIS OF COMPRESSIVE BEARING CAPACITY OF DAMAGED TUBULAR T-JOINTS REINFORCED BY CFRP SHEETS

doi: 10.13204/j.gyjzG20041404
  • Received Date: 2020-04-20
  • By setting the activation and deactivation elements and the Bao-Wierzbickis damage criterion, the loading and carbon fiber reinforcement process and the damage situation of the joint area can be simulated, and the ideal calculation accuracy can be obtained. 111 models (0.63≤β ≤ 0.76, 9.70 ≤ γ≤16.92) were numerically analyzed, and the mechanism of CFRP reinforcement was analyzed by comparing the equivalent plastic strains of the measuring points around the intersection line. And by comparing with the reference specimen, the influence of different damage conditions on the bearing capacity of the joints was analyzed. The research results showed that CFRP almost lost the reinforcement effect when the depression displacement of the chord is about one-fifth of the diameter of the chord; the maximum bearing capacity of the damaged joint increased with the increase of the diameter of the chord and the elastic modulus and thickness of the CFRP, and decreased with the thickness of the chord. When the winding orientations of CFRP was close to the circumferential direction, the reinforcement effect of the damaged joint was better.
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  • 中国工程建设标准化协会. 碳纤维片材加固混凝土结构技术规程:CECS 146:2003[S]. 北京:中国计划出版社,2003.
    SHULLEY S B, HUANG X, KARBHARI V M, et al. Fundamental Consideration of Design and Durability in Composite Rehabilitation Schemes for Steel Girders with Web Distress[C]//Infrastructure:New Materials and Methods of Repair. ASCE, 1994:1187-1194.
    DENG J, LEE M M, MOY S S. Stress Analysis of Steel Beams Reinforced with a Bonded CFRP Plate[J]. Composite Structures, 2004, 65(2):205-215.
    SHAAT A, FAM A. Slender Steel Columns Strengthened Using High-Modulus CFRP Plates for Buckling Control[J]. Journal of Composites for Construction, 2014, 18(1):2-12.
    AL-SAIDY A H. Structural Behavior of Composite Steel Beams Strengthened Repaired with Carbon Fiber Reinforced Polymer Plates[D]. Iowa:Iowa State University, 2001.
    杨勇新,岳清瑞,彭福明. 碳纤维布加固钢结构的黏结性能研究[J].土木工程学报,2006(10):1-5,18.
    陈沿辰. CFRP布加固钢管桁架K形节点静力性能有限元分析[D]. 西安:长安大学,2017.
    宋生志,魏建军,陈成. 碳纤维布(CFRP)加固T形圆钢管节点的静力性能研究[J]. 建筑钢结构进展,2015(2):57-64.
    LESANI M, BAHAARI M M, SHOKRIEH M M. Numerical Investigation of FRP-Strengthened Tubular T-Joints Under Axial Compressive Loads[J]. Composite Structures, 2013, 100:71-78.
    LESANI M, BAHAARI M R, SHOKRIEH M M. Experimental Investigation of FRP-Strengthened Tubular T-Joints Under Axial Compressive Loads[J]. Construction and Building Material, 2014, 53:243-252.
    LESANI M, BAHAARI M R, SHOKRIEH M M. FRP Wrapping for the Rehabilitation of Circular Hollow Section (CHS) Tubular Steel Connections[J]. Thin-Walled Structure, 2015, 90:216-234.
    马栋.碳纤维加固圆钢管T型相贯节点受压性能试验研究[D]. 青岛:山东科技大学,2016.
    中华人民共和国住房和城乡建设部. 钢结构设计标准:GB 50017-2017[S]. 北京:中国建筑工业出版社,2018.
    BAO Y B, WIERZBICKI T. On Fracture Locus in the Equivalent Strain and Stress Triaxiality Space[J]. International Journal of Mechanical Sciences, 2004, 46(1):81-98.
    周天华,李文超,管宇. 基于应力三轴度的钢框架循环加载损伤分析[J].工程力学,2014,31(7):146-155.
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