Abstract
Abstract: An efficient and robust finite‐element‐based method for estimating nonlinear responses of complex three‐dimensional structures with partially restrained connections under dynamic and seismic loading is presented. The method is developed using the assumed stress‐based finite‐element method in which the tangent stiffness can be expressed in explicit form and fewer elements are needed to model a structure. Geometric and material nonlinearities and the nonlinear behavior of partially restrained connections are considered. For the dynamic and seismic analyses, three major sources of damping are considered. They are viscous damping, hysteretic damping in the PR connections, and the hysteretic damping at the plastic hinges, if plastic hinges are developed in the structure. It is observed from the examples considered in this study that proper consideration of PR connections is essential in modeling the realistic dynamic and seismic behavior of structures. Numerical results show that the presence of partially restrained connections may not cause failure of a structure due to insufficient strength but may make serviceability constraints, e.g., the lateral deformation, more critical.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 27-37 |
| Number of pages | 11 |
| Journal | Computer‐Aided Civil and Infrastructure Engineering |
| Volume | 10 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1995 |
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ASJC Scopus subject areas
- Civil and Structural Engineering
- Computer Science Applications
- Computer Graphics and Computer-Aided Design
- Computational Theory and Mathematics
Cite this
Nonlinear Seismic Analysis of Space Structures with Partially Restrained Cnnections. / Gao, Liwei; Haldar, Achintya.
In: Computer‐Aided Civil and Infrastructure Engineering, Vol. 10, No. 1, 1995, p. 27-37.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nonlinear Seismic Analysis of Space Structures with Partially Restrained Cnnections.
AU - Gao, Liwei
AU - Haldar, Achintya
PY - 1995
Y1 - 1995
N2 - Abstract: An efficient and robust finite‐element‐based method for estimating nonlinear responses of complex three‐dimensional structures with partially restrained connections under dynamic and seismic loading is presented. The method is developed using the assumed stress‐based finite‐element method in which the tangent stiffness can be expressed in explicit form and fewer elements are needed to model a structure. Geometric and material nonlinearities and the nonlinear behavior of partially restrained connections are considered. For the dynamic and seismic analyses, three major sources of damping are considered. They are viscous damping, hysteretic damping in the PR connections, and the hysteretic damping at the plastic hinges, if plastic hinges are developed in the structure. It is observed from the examples considered in this study that proper consideration of PR connections is essential in modeling the realistic dynamic and seismic behavior of structures. Numerical results show that the presence of partially restrained connections may not cause failure of a structure due to insufficient strength but may make serviceability constraints, e.g., the lateral deformation, more critical.
AB - Abstract: An efficient and robust finite‐element‐based method for estimating nonlinear responses of complex three‐dimensional structures with partially restrained connections under dynamic and seismic loading is presented. The method is developed using the assumed stress‐based finite‐element method in which the tangent stiffness can be expressed in explicit form and fewer elements are needed to model a structure. Geometric and material nonlinearities and the nonlinear behavior of partially restrained connections are considered. For the dynamic and seismic analyses, three major sources of damping are considered. They are viscous damping, hysteretic damping in the PR connections, and the hysteretic damping at the plastic hinges, if plastic hinges are developed in the structure. It is observed from the examples considered in this study that proper consideration of PR connections is essential in modeling the realistic dynamic and seismic behavior of structures. Numerical results show that the presence of partially restrained connections may not cause failure of a structure due to insufficient strength but may make serviceability constraints, e.g., the lateral deformation, more critical.
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U2 - 10.1111/j.1467-8667.1995.tb00383.x
DO - 10.1111/j.1467-8667.1995.tb00383.x
M3 - Article
VL - 10
SP - 27
EP - 37
JO - Computer-Aided Civil and Infrastructure Engineering
JF - Computer-Aided Civil and Infrastructure Engineering
SN - 1093-9687
IS - 1
ER -