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RISS 인기검색어
- 검색키워드
- 저자 : Djillali Benouar (검색결과 5 건)
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Damage Potential and Vulnerability Functions of Strategic buildings in the City of Algiers
Mustapha Remki,Djillali Benouar 대한토목학회 2014 KSCE JOURNAL OF CIVIL ENGINEERING Vol.18 No.6
The estimation of losses resulting from an earthquake requires that for each building class, the relationship between the intensity ofground shaking and damage degree must be known or developed. Potential earthquake damage to structures, human beings andpersonal property have been the scope of numerous studies. Different approaches have been employed so far to estimate earthquakecasualties and damage. This paper describe the basic concept for development of analytical vulnerability functions based essentiallyon so called damage model which was performed from probabilistic studies on seismic capacity of existing buildings in the city ofAlgiers (Algeria). Regarding the developed model for assessing the seismic damage, vulnerability functions of specific losses(potential losses for a specific urban area in terms of meter square area of building slabs which may involve causalities) weredeveloped in order to predict the expected seismic risk for a given ground motion scenario.
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Analytical fragility curves for typical Algerian reinforced concrete bridge piers
Abderrahmane Kibboua,Mounir Naili,Djillali Benouar,Fouad Kehila 국제구조공학회 2011 Structural Engineering and Mechanics, An Int'l Jou Vol.39 No.3
This paper illustrates the results of a seismic vulnerability study aimed to derive the fragility curves for typical Algerian reinforced concrete bridge piers using an analytical approach. Fragility curves express the probability of exceeding a certain damage state for a given ground motion intensity (e.g.,PGA). In this respect, a set of 41 worldwide accelerometer records from which, 21 Algerian strong motion records are included, have been used in a non-linear dynamic response analyses to assess the damage indices expressed in terms of the bridge displacement ductility, the ultimate ductility, the cyclic loading factor and the cumulative energy ductility. Combining the damage indices defined for 5 damage rank with the ground motion indices, the fragility curves for the bridge piers were derived assuming a lognormal distribution.
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Analytical fragility curves for typical Algerian reinforced concrete bridge piers
Kibboua, Abderrahmane,Naili, Mounir,Benouar, Djillali,Kehila, Fouad Techno-Press 2011 Structural Engineering and Mechanics, An Int'l Jou Vol.39 No.3
This paper illustrates the results of a seismic vulnerability study aimed to derive the fragility curves for typical Algerian reinforced concrete bridge piers using an analytical approach. Fragility curves express the probability of exceeding a certain damage state for a given ground motion intensity (e.g., PGA). In this respect, a set of 41 worldwide accelerometer records from which, 21 Algerian strong motion records are included, have been used in a non-linear dynamic response analyses to assess the damage indices expressed in terms of the bridge displacement ductility, the ultimate ductility, the cyclic loading factor and the cumulative energy ductility. Combining the damage indices defined for 5 damage rank with the ground motion indices, the fragility curves for the bridge piers were derived assuming a lognormal distribution.
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Experimental identification of the six DOF C.G.S., Algeria, shaking table system
Abdelhalim Airouche,Hakim Bechtoula,Hassan Aknouche,Bradford K.Thoen,Djillali Benouar 국제구조공학회 2014 Smart Structures and Systems, An International Jou Vol.13 No.1
Servohydraulic shaking tables are being increasingly used in the field of earthquake engineering. They play a critical role in the advancement of the research state and remain one of the valuable tools for seismic testing. Recently, the National Earthquake Engineering Research Center, CGS, has acquired a 6.1m x 6.1 m shaking table system which has a six degree-of-freedom testing capability. The maximum specimenmass that can be tested on the shaking table is 60 t. This facility is designed specially for testing a complete civil engineering structures, substructures and structural elements up to collapse or ultimate limit states. It can also be used for qualification testing of industrial equipments. The current paper presents the main findings of the experimental shake-down characterization testing of the CGS shaking table. The test programcarried out in this study included random white noise and harmonic tests. These tests were performed along each of the six degrees of freedom, three translations and three rotations. This investigation provides fundamental parameters that are required and essential while elaborating a realistic model of the CGS shaking table. Also presented in this paper, is the numerical model of the shaking table that was establishedand validated.
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Experimental identification of the six DOF C.G.S., Algeria, shaking table system
Airouche, Abdelhalim,Bechtoula, Hakim,Aknouche, Hassan,Thoen, Bradford K.,Benouar, Djillali Techno-Press 2014 Smart Structures and Systems, An International Jou Vol.13 No.1
Servohydraulic shaking tables are being increasingly used in the field of earthquake engineering. They play a critical role in the advancement of the research state and remain one of the valuable tools for seismic testing. Recently, the National Earthquake Engineering Research Center, CGS, has acquired a 6.1m x 6.1 m shaking table system which has a six degree-of-freedom testing capability. The maximum specimen mass that can be tested on the shaking table is 60 t. This facility is designed specially for testing a complete civil engineering structures, substructures and structural elements up to collapse or ultimate limit states. It can also be used for qualification testing of industrial equipments. The current paper presents the main findings of the experimental shake-down characterization testing of the CGS shaking table. The test program carried out in this study included random white noise and harmonic tests. These tests were performed along each of the six degrees of freedom, three translations and three rotations. This investigation provides fundamental parameters that are required and essential while elaborating a realistic model of the CGS shaking table. Also presented in this paper, is the numerical model of the shaking table that was established and validated.
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