Finite element idealization of nonlinear structural response to tornado wind loads

1991 ◽  
Vol 10 (1) ◽  
pp. 59-74 ◽  
Author(s):  
Donita K. Eberline ◽  
Terry J. Wipf ◽  
Lowell F. Greimann
Keyword(s):  
Finite Element ◽  
Structural Response ◽  
Wind Loads ◽  
Nonlinear Structural ◽  
Nonlinear Structural Response

Reliability-based optimal design software for earthquake engineering applications

2007 ◽  
Vol 34 (7) ◽  
pp. 856-869 ◽  
Author(s):  
Hong Liang ◽  
Terje Haukaas ◽  
Johannes O Royset
Keyword(s):  
Finite Element ◽  
Design Optimization ◽  
Seismic Design ◽  
Earthquake Engineering ◽  
Structural Response ◽  
Object Oriented ◽  
Reliability Based Design Optimization ◽  
Reliability Based Design ◽  
Nonlinear Structural ◽  
Nonlinear Structural Response

This paper describes a functional tool for engineers to make rational design decisions by balancing cost and safety. Focus is on seismic design, in which nonlinear structural response must be considered. For this purpose, we implement and apply a state-of-the-art algorithm for reliability-based design optimization. The work extends the OpenSees software, which is rapidly gaining users in the earthquake engineering community. Consequently, design optimization with sophisticated nonlinear finite element models of real structures is possible. An object-oriented software architecture is employed that focuses on maintainability and extensibility of the software. This approach also offers flexibility in the choice of optimization and reliability methods for each specific problem, supported by the decoupled nature of the optimization algorithm. Our work utilizes and extends the existing tools for structural reliability analysis in OpenSees. In particular, we employ response sensitivities that are computed within the finite element code by direct differentiation. The implementation is tested through case studies with nonlinear structural response. Discontinuous response gradients are overcome by use of fibre cross sections and smoothed material models. The numerical examples include the seismic design optimization of a six-storey, three-bay, reinforced concrete building. Key words: reliability-based design optimization, nonlinear finite elements, earthquake engineering, object-oriented software development, OpenSees.

Nonlinear Structural Response

2004 ◽  
pp. 179-201
Author(s):  
Mario Paz ◽  
William Leigh
Keyword(s):  
Structural Response ◽  
Nonlinear Structural ◽  
Nonlinear Structural Response

Performance of a real-time pseudodynamic test system considering nonlinear structural response

2007 ◽  
Vol 36 (12) ◽  
pp. 1785-1809 ◽  
Author(s):  
Rae-Young Jung ◽  
P. Benson Shing ◽  
Eric Stauffer ◽  
Bradford Thoen
Keyword(s):  
Real Time ◽  
Structural Response ◽  
Test System ◽  
Pseudodynamic Test ◽  
Nonlinear Structural ◽  
Nonlinear Structural Response

scholarly journals Nonlinear Structural Response

2018 ◽  
pp. 143-170
Author(s):  
Mario Paz ◽  
Young Hoon Kim
Keyword(s):  
Structural Response ◽  
Nonlinear Structural ◽  
Nonlinear Structural Response
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