Paper Title:
Evaluation of Cracked Beam-to-Column Connection from Brittle Failure Using Finite Element Method
  Abstract

The bolted end-plate composite beam-CCSHRC column connection was validated to be ductile and offered an alternative to pre-Northridge connection. This study aims at the beam lower flange fracture in the connection test, and applies the J-integral criteria to examine the connection’s nonlinear fracture behavior. Advanced 3-D connection models containing initial crack in the high stress zone at lower flange are created, and the J values at the crack tip are calculated with considering the influences of certain parameters. The results demonstrate that the J values are strongly affected by the initial crack length and interstory drift. For 0.94, 1.35, 1.86 and 2.50 mm long crack, the J values sharply increase during loading history. The crack with a length of 2.50 mm propagates at a 66 mm drift, while the 1.35 mm long crack grows at a 120 mm drift. For 0.94 or 0.61 mm long crack, it keeps stable without growing upon loading. Besides, the J values exhibit a weak sensitivity to the beam concrete strength and tensile reinforcement ratio for beam. Under the same drift, the J-integral increases by about 3.5% when concrete strength changes from 15 to 24 MPa, and the J values at 0.6% tensile reinforcement ratio for beam are 1.5% larger than those at 0.3% or 1% reinforcement ratio.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
1021-1024
DOI
10.4028/www.scientific.net/KEM.353-358.1021
Citation
H. W. Ma, C. D. Cho, C. B. Kim, H. G. Beom, "Evaluation of Cracked Beam-to-Column Connection from Brittle Failure Using Finite Element Method", Key Engineering Materials, Vols. 353-358, pp. 1021-1024, 2007
Online since
September 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Cheol Min Yang, Young Moon Kim, Nag Ho Ko, Dong Pyo Hong
Abstract:This paper proposes a new semi-rigid detail used high-strength bolts for use in earthquake resistant structures. These specimens were...
2081
Authors: Zhi Ping Yin, Jiong Zhang, Jin Guo, Qi Qing Huang
Abstract:The finite element software ANSYS was employed to create a finite element model of the cracked wing beam integrated structure, and the stress...
101
Authors: Qiong Fen Wang, Yuan Cai Liu, Liang Cao, Ji Yao, Jian Feng Huang
Dynamic Mechanical Analysis, Optimization and Control
Abstract:Calculations of the end-plate semi-rigid joints are carried out with a FE-program ANSYS. Some results of the calculations are introduced in...
1625
Authors: Jing Feng Wang, Bo Wang, Zhong Ming Zheng
Chapter 9: New Technology for the Preparation and Construction of Building Materials
Abstract:To research the mechanical behaviour of the novel composite beam with concrete filled steel tubular (CFST) truss, an experimental study of...
1680
Authors: Li Ying Xu
Chapter 7: Computational Mechanics
Abstract:In order to meet the necessity of the code for seismic design of buildings: Principle for strong connections and feebleness member. The...
3269