A displacement based approach for seismic analysis and design of cantilever sheet pile walls under surcharge loading

2021 ◽  
Vol 140 ◽  
pp. 104481
Author(s):  
Akshay Pratap Singh ◽  
Kaustav Chatterjee
Keyword(s):  
Seismic Analysis ◽  
Sheet Pile ◽  
Analysis And Design ◽  
Surcharge Loading ◽  
Displacement Based

scholarly journals Myths and fallacies in earthquake engineering

1993 ◽  
Vol 26 (3) ◽  
pp. 329-341 ◽  
Author(s):  
M. J. Nigel Priestley
Keyword(s):  
Earthquake Engineering ◽  
Seismic Analysis ◽  
Design Development ◽  
Capacity Design ◽  
Analysis And Design ◽  
Shear Design ◽  
Strength Based ◽  
Displacement Based ◽  
Mixed Blessing ◽  
Current Emphasis

Current practice in seismic analysis and design is examined, with particular reference to reinforced concrete structures. The attitude of the paper is deliberately iconoclastic, tilting at targets it is hoped will not be seen as windmills. It is suggested that our current emphasis on strength-based design and ductility leads us in directions that are not always rational. A pure displacement-based design approach is advanced as a viable alternative. Improvements resulting from increased sophistication of analyses are seen to be largely illusory. Energy absorption is shown to be a mixed blessing. Finally, accepted practices for flexural design, shear design, development of reinforcement, and the philosophic basis of capacity design are questioned.

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.

PERPETUATE Project: The Proposal of a Performance-Based Approach to Earthquake Protection of Cultural Heritage

2010 ◽  
Vol 133-134 ◽  
pp. 1119-1124 ◽  
Author(s):  
Sergio Lagomarsino ◽  
Hormoz Modaressi ◽  
Kiriazis Pitilakis ◽  
Vlatko Bosiljkov ◽  
Chiara Calderini ◽  
...  
Keyword(s):  
Cultural Heritage ◽  
Seismic Risk ◽  
Seismic Analysis ◽  
Destructive Testing ◽  
Limit States ◽  
European Guidelines ◽  
Construction Knowledge ◽  
Performance Limit States ◽  
Displacement Based ◽  
Artistic Assets

The paper describes the methodology proposed in the PERPETUATE Project (funded by the Seventh Framework Programme – Theme ENV.2009.3.2.1.1). The methodology proposed in PERPETUATE uses a displacement-based approach for the vulnerability evaluation and design of interventions. The use of safety verification in terms of displacement, rather than strength, orients to new strengthening techniques and helps in the comprehension of interaction between structural elements and unmovable artistic assets. The procedure is based on the following fundamental steps: definition of performance limit states, specific for the cultural heritage assets (considering both structural and artistic assets); evaluation of seismic hazard and soil-foundation interactions; construction knowledge (non-destructive testing, material parameters, structural identification); development of structural models for the seismic analysis of masonry structures and artistic assets and design of interventions; application and validation of the methodology to case studies. Two main scales are considered: the seismic risk assessment at territorial scale and at the scale of single historic building or artistic assets. The final aim of the project is to develop European Guidelines for evaluation and mitigation of seismic risk to cultural heritage assets.

scholarly journals ABOUT METHODS OF SEISMIC ANALYSIS OF UNDERGROUND STRUCTURES

2018 ◽  
Vol 14 (3) ◽  
pp. 14-25
Author(s):  
Alexander M. Belostotsky ◽  
Pavel A. Akimov ◽  
Dmitry D. Dmitriev
Keyword(s):  
Seismic Analysis ◽  
General Structure ◽  
Underground Structure ◽  
Modern Society ◽  
Coupled System ◽  
Earthquake Activity ◽  
Underground Structures ◽  
Current State ◽  
Displacement Based ◽  
Methods Numerical

As is known, underground facilities are an integral part of the infrastructure of modern society. These objects have some specific characteristics such as complex construction, high cost, long life cycle, etc. Once it is destroyed, the direct and indirect losses are more seriousness than the general structure in the ground. Under-ground facilities built in areas subject to earthquake activity must withstand both seismic and static loading. Therefore, it is very important to carry on the seismic design of the underground structure in a safe and economi-cal way. The distinctive paper presents a summary of the current state of seismic analysis for underground struc-tures. Classification and brief overview of methods of seismic analysis of underground structures (force-based methods, displacement-based methods, numerical methods of seismic analysis of coupled system “soil – under-ground structure”) are presented, problems of soil-structure interaction are under consideration as well. So-called static finite element method with substructure technique for seismic analysis of underground structures is de-scribed.

scholarly journals Seismic Analysis Method for Underground Structure in Loess Area Based on the Modified Displacement-Based Method

2021 ◽  
Vol 11 (23) ◽  
pp. 11245
Author(s):  
Ruijie Zhang ◽  
Dan Ye ◽  
Jianting Zhou ◽  
Dengzhou Quan
Keyword(s):  
Design Research ◽  
Seismic Analysis ◽  
Design Method ◽  
Underground Structure ◽  
Time History ◽  
Shaking Table ◽  
Underground Structures ◽  
Loess Area ◽  
Geological Conditions ◽  
Displacement Based

At present, the seismic design research of underground structures in loess areas is lagging behind compared with practical engineering requirements. The selection of seismic calculation methods and parameters does not consider the influences of the special geological conditions in various regions, so their usefulness is limited. Based on the above problems, a modified displacement-based method (DBM) was proposed and its application was compared with the most commonly used methods of analysis (force-based design method, displacement-based design method, detailed equivalent static analysis numerical method, and the full dynamic time-history method). The results were also validated by considering data from shaking table tests conducted on a case study involving the underground Feitian Road subway station in Xi’an. The results show that compared with DBM, the average accuracy of the modified DBM technique is improved by 41.65%. The modified DBM offers good accuracy, simplicity in its model, a rapid analysis time, and easy convergence.

Sign in / Sign up

Export Citation Format

Share Document