The Role of Nonlinear Analysis in Modern Engineering Practice Related to Performance-Based Seismic Design

2000 ◽  
Author(s):  
James O. Malley ◽  
Darrick B. Hom
Keyword(s):  
Nonlinear Analysis ◽  
Seismic Design ◽  
Engineering Practice ◽  
Modern Engineering ◽  
Performance Based Seismic Design

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.

Rosenhain Centenary Conference - 4. The future role of physical metallurgy in relation to engineering practice

1976 ◽  
Vol 282 (1307) ◽  
pp. 451-460
Keyword(s):  
Solid State ◽  
Structural Design ◽  
Engineering Practice ◽  
Physical Metallurgy ◽  
Future Role ◽  
Professional Activities ◽  
Modern Engineering ◽  
The World ◽  
The Future

Engineering practice is all about designing, constructing and maintaining structures for the comfort and use of mankind. In order to achieve his purpose the engineer takes materials from the world around him and assembles them into an artefact to meet a defined need. In earlier times need could be satisfied quite simply by gathering materials as they are found in nature and assembling them into useful forms with a minimum amount of modification, such as chiselling rough stones into simple geometrical forms to make walls. The early engineer was his own materials scientist and the great pyramids, cathedrals, aqueducts and the like remain as testimonies to his understanding of the properties of natural materials. The progress of science and technology has changed all that. The improvement of properties made possible by separating metals from their ores opened up entirely new vistas for structural design. But the intricacy and complexity of all the intervening stages from ore in the ground to a useful modern engineering structure are so diverse that engineering practice has to be seen now as only the last step in a long sequence of professional activities encompassing geological prospecting, through mining to smelting, refining and fabrication. Thus engineering practice has come to depend for its successful prosecution on many sciences and technologies among which metallurgy is paramount. But metallurgy itself is now subdivided, as the subtitle of our conference shows, and throughout the papers you will find reference to a variety of sub-subspecies including ‘solid state physical metallurgy’. In reflecting on the scope of my contribution to the conference I was led to seek the origin of this adjectival division of the discipline because I believe it has an important bearing on the future

scholarly journals Special Issue “Applications of Finite Element Modeling for Mechanical and Mechatronic Systems”

2021 ◽  
Vol 11 (11) ◽  
pp. 5170
Author(s):  
Marek Krawczuk ◽  
Magdalena Palacz
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Modeling ◽  
Engineering Practice ◽  
The Finite Element Method ◽  
Special Issue ◽  
Mechatronic Systems ◽  
Modeling And Analysis ◽  
Modern Engineering ◽  
Concise Description

Modern engineering practice requires advanced numerical modeling because, among other things, it reduces the costs associated with prototyping or predicting the occurrence of potentially dangerous situations during operation in certain defined conditions. Different methods have so far been used to implement the real structure into the numerical version. The most popular have been variations of the finite element method (FEM). The aim of this Special Issue has been to familiarize the reader with the latest applications of the FEM for the modeling and analysis of diverse mechanical problems. Authors are encouraged to provide a concise description of the specific application or a potential application of the Special Issue.

Research Situation on the Performance-Based Seismic Design Method for Reinforced Concrete Structure

2010 ◽  
Vol 163-167 ◽  
pp. 1757-1761
Author(s):  
Yong Le Qi ◽  
Xiao Lei Han ◽  
Xue Ping Peng ◽  
Yu Zhou ◽  
Sheng Yi Lin
Keyword(s):  
Reinforced Concrete ◽  
Seismic Design ◽  
Design Method ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Seismic Evaluation ◽  
Seismic Codes ◽  
Performance Based Seismic Design ◽  
Capacity Calculation ◽  
Seismic Design Method

Various analytical approaches to performance-based seismic design are in development. Based on the current Chinese seismic codes，elastic capacity calculation under frequent earthquake and ductile details of seismic design shall be performed for whether seismic design of new buildings or seismic evaluation of existing buildings to satisfy the seismic fortification criterion “no damage under frequent earthquake, repairable under fortification earthquake, no collapse under severe earthquake”. However, for some special buildings which dissatisfy with the requirements of current building codes, elastic capacity calculation under frequent earthquake is obviously not enough. In this paper, the advanced performance-based seismic theory is introduced to solve the problems of seismic evaluation and strengthening for existing reinforced concrete structures, in which story drift ratio and deformation of components are used as performance targets. By combining the features of Chinese seismic codes, a set of performance-based seismic design method is established for reinforced concrete structures. Different calculation methods relevant to different seismic fortification criterions are adopted in the proposed method, which solve the problems of seismic evaluation for reinforced concrete structures.

Implementing the performance-based seismic design for new reinforced concrete structures: Comparison among ASCE/SEI 41, TBI, and LATBSDC

2021 ◽  
pp. 875529302098196
Author(s):  
Siamak Sattar ◽  
Anne Hulsey ◽  
Garrett Hagen ◽  
Farzad Naeim ◽  
Steven McCabe
Keyword(s):  
Reinforced Concrete ◽  
Los Angeles ◽  
Seismic Design ◽  
Common Ground ◽  
Seismic Analysis ◽  
Tall Buildings ◽  
The United States ◽  
Analysis And Design ◽  
Performance Based Seismic Design ◽  
New Buildings

Performance-based seismic design (PBSD) has been recognized as a framework for designing new buildings in the United States in recent years. Various guidelines and standards have been developed to codify and document the implementation of PBSD, including “ Seismic Evaluation and Retrofit of Existing Buildings” (ASCE 41-17), the Tall Buildings Initiative’s Guidelines for Performance-Based Seismic Design of Tall Buildings (TBI Guidelines), and the Los Angeles Tall Buildings Structural Design Council’s An Alternative Procedure for Seismic Analysis and Design of Tall Buildings Located in the Los Angeles Region (LATBSDC Procedure). The main goal of these documents is to regularize the implementation of PBSD for practicing engineers. These documents were developed independently with experts from varying backgrounds and organizations and consequently have differences in several degrees from basic intent to the details of the implementation. As the main objective of PBSD is to ensure a specified building performance, these documents would be expected to provide similar recommendations for achieving a given performance objective for new buildings. This article provides a detailed comparison among each document’s implementation of PBSD for reinforced concrete buildings, with the goal of highlighting the differences among these documents and identifying provisions in which the designed building may achieve varied performance depending on the chosen standard/guideline. This comparison can help committees developing these documents to be aware of their differences, investigate the sources of their divergence, and bring these documents closer to common ground in future cycles.

Performance-based seismic design and optimization of damper devices for cable-stayed bridge

2021 ◽  
Vol 237 ◽  
pp. 112043
Author(s):  
Jianian Wen ◽  
Qiang Han ◽  
Yazhou Xie ◽  
Xiuli Du ◽  
Jian Zhang
Keyword(s):  
Seismic Design ◽  
Design And Optimization ◽  
Cable Stayed Bridge ◽  
Performance Based Seismic Design
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