Seismic Strengthening with Minimum Occupant Disruption Using Performance Based Seismic Design Criteria

1994 ◽  
Vol 10 (1) ◽  
pp. 65-79 ◽  
Author(s):  
Gary C. Hart ◽  
Rami M. Elhassan
Keyword(s):  
Seismic Design ◽  
Base Isolation ◽  
Performance Based Design ◽  
Design Solution ◽  
Design Criteria ◽  
Seismic Rehabilitation ◽  
Concrete Frame ◽  
Frame Building ◽  
Performance Based Seismic Design ◽  
A Performance

A performance based design criteria for seismic rehabilitation requires considerable communication with building owners to develop a mutual understanding of the design constraints and the product that is delivered. This communication becomes even more complex when the goal is to minimize the occupant disruption. This paper presents a discussion of two seismic rehabilitation projects in Southern California where minimizing occupant disruption was essential and where the seismic design was a performance based design. One building was a midrise concrete-frame building housing computer facilities and executive personnel. The other building was an unreinforced masonry residence for business and movie professionals. In both situations base isolation was the best design solution.

Optimal Performance-Based Seismic Design

2012 ◽  
pp. 174-207
Author(s):  
Hamid Moharrami
Keyword(s):  
Sensitivity Analysis ◽  
Performance Evaluation ◽  
Nonlinear Analysis ◽  
Seismic Design ◽  
Optimization Algorithms ◽  
Optimal Performance ◽  
Performance Based Design ◽  
Real Performance ◽  
Performance Based Seismic Design

In this chapter, the reader gets acquainted with the philosophy of performance-based design, its principles, and an overview of the procedures for performance evaluation of structures. The essential prerequisites of optimal performance-based design, including nonlinear analysis, optimization algorithms, and nonlinear sensitivity analysis, are introduced. The methods of nonlinear analysis and optimization are briefly presented, and the formulation of optimal performance-based design with emphasis on deterministic type, rather than probabilistic- (or reliability)-based formulation is discussed in detail. It is revealed how real performance-based design is tied to optimization, and the reason is given for why, without optimization algorithms, multilevel performance-based design is almost impossible.

A PERFORMANCE-BASED SEISMIC DESIGN METHODOLOGY FOR STEEL BRIDGE SYSTEMS

2009 ◽  
Vol 03 (03) ◽  
pp. 175-193 ◽  
Author(s):  
TSUTOMU USAMI ◽  
HANBIN GE
Keyword(s):  
Seismic Design ◽  
Design Methodology ◽  
Evaluation Method ◽  
Ultimate Strain ◽  
Steel Bridge ◽  
Performance Matrix ◽  
Bridge Structures ◽  
Performance Based Seismic Design ◽  
Displacement Based ◽  
A Performance

This paper outlines a performance-based seismic design methodology for steel bridge systems. Two kinds of menus are proposed. The first is the displacement-based evaluation method which compares the response displacement with the ultimate displacement, and the second is the strain-based evaluation method which compares the response strain and the ultimate strain. Moreover, the seismic required performance matrix for bridge structures and soundness matrix for members are presented and discussed.

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