Paper Title:
Nonlinear Dynamic Response Analysis of the Braced Steel Frame with Wedge Devices
  Abstract

In order to research the nonlinear dynamic respond analysis of a new braced steel frame with wedge devices under the action of earthquake, its damping mechanism is analyzed, and the computational model is obtained. Based on the mechanism of multiple resistant lateral system, the explicit nonlinear dynamic analysis and dynamic contact algorithm are adopted to separately analyze the steel frame with no brace, with centric and eccentric brace, and with the new braced wedge block. During the analysis, in order to take the material and geometrical bi-nonlinear into account, the material model is chosen as the bilinear equivalent strength, and the explicit centered difference algorithm is adopted. It can be obtained from structural deformation and energy and so on. The results show that the stiffness of structure decays after plastic deformation in the earthquake effect, and the hysteresis energy consumption and system dumping appear. The nonlinear dynamic response of steel frame is affected by resistant lateral stiffness, plastic deformation, and system damping. The braced steel frame with wedge block regulates the displacement and acceleration response with yield energy dissipation of brace, as it provides resistance lateral stiffness to control the deformation. This kind of structure has strong adaptability to earthquake intensity and good seismic performance.

  Info
Periodical
Advanced Materials Research (Volumes 368-373)
Chapter
Chapter 2: Disaster Prevention and Reduction of Civil Engineering
Edited by
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
Pages
685-689
DOI
10.4028/www.scientific.net/AMR.368-373.685
Citation
J. S. Lei, Y. S. Zou, Y. L. Wang, Q. Ma, "Nonlinear Dynamic Response Analysis of the Braced Steel Frame with Wedge Devices", Advanced Materials Research, Vols. 368-373, pp. 685-689, 2012
Online since
October 2011
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: Yong Sheng Qi, Feng Hua Zhao, Jun Wen Zhou
Abstract:Influence of strength variability of braces on the weak shear type concentrically-braced steel frames is studied by pushover and nonlinear...
1396
Authors: Dui Xian Gao, Zhi Wei Chen
Chapter 23: Meso/Micro Manufacturing Equipment and Processes
Abstract:Using the time history analytical method to study the location effecting of the braces to the lateral displace of the steel frame. Base on...
6181
Authors: Ricky W.K. Chan, Zhe Fei Zhao
Chapter 5: Earthquake and Seismic Engineering
Abstract:Soft-storey mechanism is characterized by a sudden reduction of lateral stiffness in one or more levels of a structure. Soft-storey is often...
833