Discussion on Drift Limit of Fully Operational Performance Level for RC Structures

2010 ◽  
Vol 163-167 ◽  
pp. 1175-1179
Author(s):  
Zi Xiong Guo ◽  
Qun Xian Huang ◽  
Yang Liu
Keyword(s):  
Seismic Design ◽  
Performance Level ◽  
Service Performance ◽  
Operational Performance ◽  
Test Results ◽  
Structural Components ◽  
Rc Structures ◽  
Calculation Results ◽  
Performance Based Seismic Design ◽  
Drift Limit

In accordance with the philosophy of performance based seismic design (PBSD), the fully operational performance level (or service performance level) for frequently occurring earthquakes and the criteria for determining its allowable drift indices is discussed in this paper. To determine the allowable drift limits of the service performance level for frequently occurring earthquake, it is important that not only the degree of damage of nonstructural members but also the degree of cracking in structural components should be controlled. Based on an analysis of test results and calculation results, a series of allowable drift index limits that conform to the fully operational performance level of RC structures are presented.

Discussion and Method on Performance Based Seismic Design for Concrete-Filled Steel Tubular Structures

2010 ◽  
Vol 163-167 ◽  
pp. 372-375
Author(s):  
Wen Da Wang ◽  
Xiu Li Xia ◽  
Yan Li Shi
Keyword(s):  
Seismic Design ◽  
Earthquake Engineering ◽  
Tubular Structures ◽  
Design Code ◽  
Theory Analysis ◽  
Rc Structures ◽  
Engineering Research ◽  
Seismic Design Code ◽  
Specific Performance ◽  
Performance Based Seismic Design

The theory of performance-based seismic design (PBSD) is the key issue for the modern earthquake engineering research. With comparison of the traditional prescriptive seismic design code based on the bearing capacity design, the PBSD method presents the specific performance object for the buildings. On the base of the background and development of the PBSD about reinforced concrete (RC) structures, some researches and design approaches of PBSD were proposed for the concrete-filled steel tubular (CFST) structures based on the research results on PBSD of RC structures and the mechanical behavior of CFST structures. Some theory analysis was performed to investigate the PBSD performance of CFST structures. This is referred to further study on PBSD for CFST structures.

Test and FEM Analysis on a New Type of Anti-Wind Device

2012 ◽  
Vol 268-270 ◽  
pp. 697-701
Author(s):  
Chao Yong Shen ◽  
Yu Hong Ma ◽  
Min Hui Zhou
Keyword(s):  
Ultimate Strength ◽  
Seismic Design ◽  
Fem Analysis ◽  
Scale Model ◽  
Design Calculation ◽  
Test Results ◽  
Calculation Results ◽  
New Type ◽  
Intermediate Section

A new type of anti-wind device was put forward. 1/4 scale model about it had been tested and analyzed by FEM. Comparison of FEM, design calculation results with test results also had been done.Test and FEM results show the intermediate section will be the most weakness part, no matter that it is on the condition of in-plane load or out-plane load. During the stage of anti-wind design, it is safe for the FEM, design calculation results in which the standard strength of material is used, but at the stage of seismic design, the ultimate strength of anti-wind device should be considered in order to assure the anti-wind device to damage while earthquake happens.

scholarly journals Displacement-based Design of Frames Consisting of Composite Beams and RC Columns

2015 ◽  
Vol 9 (1) ◽  
pp. 811-825
Author(s):  
Wei Li ◽  
Linzhu Sun ◽  
Kejia Yang
Keyword(s):  
Seismic Design ◽  
Design Method ◽  
Concrete Columns ◽  
Composite Beams ◽  
Seismic Performance Assessment ◽  
Direct Displacement Based Design ◽  
Composite Frame ◽  
Calculation Results ◽  
Performance Based Seismic Design ◽  
Displacement Based

Performance-based seismic design (PBSD) method has been widely recognized in recent years, it can be used for the future structural design. And the direct displacement-based design method (DDBD) is one of the most effective ways to implement the performance-based seismic design (PBSD) theory in current. In this paper, aiming to the composite frame consisting of composite beams and continuous compound spiral hoop reinforced concrete columns (CCSHRCS), its DDBD flowchart is presented, and the structure identified performance objectives in the preliminary design process and specific seismic performance assessment methods are given. Finally, through the calculation results of CCSHRCS frame case that demonstrated the reasonableness of the method. It provides an effective tool for the seismic design of CCSHRCS frame structures

Research on Performance-Based Seismic Levels of Nonstructural Components

2014 ◽  
Vol 580-583 ◽  
pp. 1609-1612
Author(s):  
Hai Hua Zhu ◽  
Guo Zhao
Keyword(s):  
Seismic Performance ◽  
Seismic Design ◽  
Design Theory ◽  
Functional Classification ◽  
Structural Components ◽  
Nonstructural Components ◽  
Performance Based Seismic Design ◽  
Displacement Angle

By research of the functional classification, seismic fortification performance objectives and quantified targets of non-structural components, according to the case of earthquake destruction in non-structural components, analyzed the reasons for the destruction . proposed three functional classification;Based on performance-based seismic design theory, proposed four level seismic performance objectives division and quantify seismic indicators of inter story displacement angle.

scholarly journals Performance Based Seismic Design of Reinforced Concrete Building by Non-Linear Static Analysis

2021 ◽  
Vol 9 (VII) ◽  
pp. 1748-1752
Author(s):  
Prof. Pallavi K. Pasnur
Keyword(s):  
Seismic Design ◽  
Plastic Hinge ◽  
Time History ◽  
Performance Level ◽  
Economic Losses ◽  
Earthquake Resistant Design ◽  
Non Linear ◽  
Rc Building ◽  
Performance Based Seismic Design ◽  
Design Earthquake

In past two decades earthquake disasters in the world have shown that significant damage occurred even when the buildings were designed as per the conventional earthquake-resistant design philosophy (force-based approach) exposing the inability of the codes to ensure minimum performance of the structures under design earthquake. The performance based seismic design (PBSD), evaluates how the buildings are likely to perform under a design earthquake. As compared to force-based approach, PBSD provides a methodology for assessing the seismic performance of a building, ensuring life safety and minimum economic losses. The non-linear static procedures also known as time history analysis are used to analyze the performance of structure . Plastic hinge formation patterns, plastic rotation, drift ratio and other parameters are selected as performance criterias to define different performance level. In this paper, a five-storey RC building is modelled and designed as per IS 456:2000 and analyzed for lmmediate occupancy performance level in ETABS2015 softwere. Analysis is carried out as per FEMA P58 PART 1 & 2. Plastic hinges as per FEMA273. From the analysis, it is checked that the performance level of the building is as per the assumption

scholarly journals Application of Two-Parameter Fatigue Charactersitics in Fatigue Persistence Calculations of Structural Components Under Conditions of a Broad Spectrum of Loads

2016 ◽  
Vol 23 (4) ◽  
pp. 138-145
Author(s):  
Grzegorz Szala
Keyword(s):  
Original Method ◽  
Fatigue Tests ◽  
Test Results ◽  
Structural Components ◽  
Load Spectrum ◽  
Method Of Calculation ◽  
Calculation Results ◽  
Fatigue Characteristics ◽  
Damage Summation ◽  
Two Parameter

Abstract The paper presents an original method of calculation of the fatigue persistence based on the adoption of the load spectrum in the form of a correlation table, two-parameter fatigue characteristics and the linear hypothesis of fatigue damage summation. The calculation results by the proposed method were compared with the results of fatigue tests programmed for node-seal construction. On the basis of a comparative analysis of the test results and calculations conclusions regarding the usefulness of the proposed method to evaluate the fatigue persistence of components have been reached.

Research on Material Damage Limits of RC Components for Performance-Based Seismic Design and Assessment

2013 ◽  
Vol 477-478 ◽  
pp. 1101-1104 ◽  
Author(s):  
Yong Le Qi ◽  
Xin Xian Zhou ◽  
Can Dong Xie
Keyword(s):  
Seismic Performance ◽  
Seismic Design ◽  
Performance Level ◽  
Microscopic Model ◽  
Material Damage ◽  
Deformation Index ◽  
Mechanical Description ◽  
Performance Based Seismic Design ◽  
Performance Based Evaluation ◽  
Slight Damage

This paper divided the seismic performance of RC Components into five levels: integrity, slight damage, slight ~ moderate damage and serious damage, which were defined based on material damage. Physical and mechanical description of RC components in each performance level was given, which can be used as the basis of performance-based evaluation of concrete components in microscopic model and the basis of research on deformation index limits in macro components.

Seismic Performance Evaluation for Reinforced Concrete Buildings and Masonry Buildings

2017 ◽  
Vol 863 ◽  
pp. 305-310
Author(s):  
Jeng Hsiang Lin
Keyword(s):  
Reinforced Concrete ◽  
Seismic Performance ◽  
Seismic Design ◽  
Performance Level ◽  
Masonry Buildings ◽  
Reinforced Concrete Buildings ◽  
Design Standards ◽  
Concrete Buildings ◽  
Performance Based Seismic Design ◽  
A Performance

Performance-based seismic design is the basis of most new seismic design standards and specifications worldwide. In a performance-based seismic design, a performance objective consists of the specification of a performance level and a corresponding probability that this performance level may be exceeded. This study explored some probability information for seismic performance for reinforced concrete buildings and masonry buildings. The exceeding probabilities of various performance levels for reinforced concrete buildings and masonry buildings during their 50-year useful lives were investigated. Then, a probabilistic evaluation was performed for these buildings to examine the achievement of desired performance design objectives.

Deformation-dependent peak floor acceleration for the performance-based design of nonstructural elements attached to R/C structures

2021 ◽  
pp. 875529302098801
Author(s):  
Edmond V Muho ◽  
Chao Pian ◽  
Jiang Qian ◽  
Mahdi Shadabfar ◽  
Dimitri E Beskos
Keyword(s):  
Seismic Design ◽  
Performance Based Design ◽  
Nonstructural Components ◽  
Rc Structures ◽  
Supporting Structure ◽  
Moment Resisting Frames ◽  
Key Points ◽  
Moment Resisting ◽  
Performance Based Seismic Design ◽  
Floor Acceleration

This study introduces a simple and efficient method to determine the peak floor acceleration (PFA) at different performance levels for three types of plane reinforced concrete (RC) structures: moment-resisting frames (MRFs), infilled–moment-resisting frames (I-MRFs), and wall-frame dual systems (WFDSs). By associating the structural maximum PFA response with the deformation response, the acceleration-sensitive nonstructural components, and the building contents, can be designed to adhere to the performance-based seismic design of the supporting structure. Thus, the proposed method can accompany displacement-based seismic design methods to design acceleration-sensitive nonstructural elements to comply with the deformation target of the supporting structure. The PFA response shape is represented by line segments defined by key points corresponding to certain floor levels. These key points are defined by explicit empirical expressions developed herein. The maximum PFA response is correlated with the maximum interstory drift ratio (IDR) and other vital characteristics of the supporting structure such as the fundamental period. The proposed expressions are established based on extensive nonlinear dynamic analyses of 19 MRFs, 19 WFDSs, and 19 I-MRFs under 100 far-fault ground motions scaled to capture different deformation targets. Realistic examples demonstrate the efficiency of the proposed method to assess the PFA response at a given IDR, making the method suitable in the framework of performance-based design.

PENGARUH SISTEM INFORMASI AKUNTANSI DAN TEKNOLOGI INFORMASI TERHADAP KINERJA PELAYANAN DI SEKTOR PUBLIK

2011 ◽  
Author(s):  
Hari Wahyudi
Keyword(s):  
Information Systems ◽  
Public Sector ◽  
Service Sector ◽  
Accounting Information ◽  
Service Performance ◽  
Test Reliability ◽  
Test Results ◽  
Performance Information ◽  
Accounting Information Systems ◽  
The Public

This study aimed to investigate the influence of accounting information systems and technology to service performance information on the public sector. Samples in this study were RS. M. Djamil in Padang, PLN, PDAM in Padang and taken at random (purposive sampling). Of the 122 questionnaires had been distributed only 85 questionnaires could be processed. Test Equipment used to test the validity of this study is the test, Test Reliability, Test for multicollinearity, coefficient Determination Test, and the t test, results of this study are: (a) The first hypothesis tests can be concluded that the accounting information systems has significant influence on performance in service sector public. (2) Information technology does not significantly influence the performance of services in the public sector.

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