Pub Date : 2021-01-01DOI: 10.7712/120121.8688.19522
G. Manos
{"title":"STUDY OF THE INFLUENCE OF UNDERLYING SOFT-SOIL LAYERS ON THE DYNAMIC AND EARTHQUAKE RESPONSE OF BELL TOWERS","authors":"G. Manos","doi":"10.7712/120121.8688.19522","DOIUrl":"https://doi.org/10.7712/120121.8688.19522","url":null,"abstract":"","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"148 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77341446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.7712/120121.8484.19046
P. Zampieri, Riccardo Piazzon, B. Pantò, C. Pellegrino
{"title":"A DISCRETE-MACRO-ELEMENT-MODEL FOR THE IN-PLANE ANALYSIS OF MASONRY STRUCTURES STRENGTHENED BY FRCMS","authors":"P. Zampieri, Riccardo Piazzon, B. Pantò, C. Pellegrino","doi":"10.7712/120121.8484.19046","DOIUrl":"https://doi.org/10.7712/120121.8484.19046","url":null,"abstract":"","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85318240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.7712/120121.8754.19593
N. Bakas, G. Markou, D. Charmpis, K. Hadjiyiannakou
{"title":"PERFORMANCE AND SCALABILITY OF DEEP LEARNING MODELS TRAINED ON A HYBRID SUPERCOMPUTER: APPLICATION IN THE PREDICTION OF THE SHEAR STRENGTH OF SLENDER RC BEAMS","authors":"N. Bakas, G. Markou, D. Charmpis, K. Hadjiyiannakou","doi":"10.7712/120121.8754.19593","DOIUrl":"https://doi.org/10.7712/120121.8754.19593","url":null,"abstract":"","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84831656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.7712/120121.8494.19238
Francesca Faleri, N. Grillanda, S. Tezcan, R. Perucchio, G. Milani
{"title":"ROLE OF REPEATED SEISMIC EVENTS ON THE COLLAPSE OF TWO CALIDARIA IN ROME DATING BACK TO THE IMPERIAL AGE","authors":"Francesca Faleri, N. Grillanda, S. Tezcan, R. Perucchio, G. Milani","doi":"10.7712/120121.8494.19238","DOIUrl":"https://doi.org/10.7712/120121.8494.19238","url":null,"abstract":"","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"61 3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89795842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.7712/120121.8832.19560
Carolina Rojas Cabrera, Lizeth F. Ortega Escobar, Ingrid E. Madera Sierra, Daniele Lossano, Albert R. Ortíz Lasprilla
This paper presents the research on recycled rubber material design, made from vehicle tires, to be used as a matrix of low-cost seismic isolators' prototypes for risk mitigation in South America buildings. Four mixes were contrasting to determine the influence of the particle size distribution on the recycled rubber characteristics, three of them with different size particle composition and the last one with a non-control distribution. Mechanical properties such as density, hardness, and tensile stress, were studied, and stereoscopic images were taken. In the controlled size distribution case, the experimental results showed an improvement in the packing capacity of the particles with a better consolidation of the material under the same processing conditions as a consequence. Regarding the tension stress, the controlled mixes achieved a maximum strength higher than the non-controlled mix (up to 70%), and their spectroscopy images show consolidated materials without voids or pores. All the samples presented a similar hardness with values higher than the natural rubber one (60). Therefore, the development of recycled rubber material with a control size distribution allowed to improve the material behavior without changes in the manufactured process.
{"title":"ANALYSIS OF THE PARTICLES DISTRIBUTION INFLUENCE ON THE RECYCLED RUBBER PROPERTIES TO BE USED AS A MATRIX OF LOW-COST SEISMIC ISOLATORS","authors":"Carolina Rojas Cabrera, Lizeth F. Ortega Escobar, Ingrid E. Madera Sierra, Daniele Lossano, Albert R. Ortíz Lasprilla","doi":"10.7712/120121.8832.19560","DOIUrl":"https://doi.org/10.7712/120121.8832.19560","url":null,"abstract":"This paper presents the research on recycled rubber material design, made from vehicle tires, to be used as a matrix of low-cost seismic isolators' prototypes for risk mitigation in South America buildings. Four mixes were contrasting to determine the influence of the particle size distribution on the recycled rubber characteristics, three of them with different size particle composition and the last one with a non-control distribution. Mechanical properties such as density, hardness, and tensile stress, were studied, and stereoscopic images were taken. In the controlled size distribution case, the experimental results showed an improvement in the packing capacity of the particles with a better consolidation of the material under the same processing conditions as a consequence. Regarding the tension stress, the controlled mixes achieved a maximum strength higher than the non-controlled mix (up to 70%), and their spectroscopy images show consolidated materials without voids or pores. All the samples presented a similar hardness with values higher than the natural rubber one (60). Therefore, the development of recycled rubber material with a control size distribution allowed to improve the material behavior without changes in the manufactured process.","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"63 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89654226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.7712/120121.8593.18667
Panagiotis Sioulas, T. Chrysanidis, N. Alamanis, G. Papageorgiou
Greece is divided into three seismic hazard zones ZI, ZII, ZIII. In the present research work, the same building in the three seismic zones of Greece is modeled, analysed and dimensioned and then the construction cost of its structural body is estimated. The building modeling was performed in SAP2000 using linear finite elements. The analysis of the building was performed by dynamic spectral analysis methods using the design spectrum of EC8. A ten-storey building with a standard floor plan per floor was used. The purpose of this research paper is through comparative analytical estimation of construction costs to demonstrate whether the cost of construction of the bearing structure of a reinforced concrete building is affected by the area seismic hazard, if this influence is significant and to what extent. Useful conclusions are drawn regarding the influence of seismicity on the construction cost of the load-bearing structure of reinforced concrete buildings.
{"title":"STUDY OF THE INFLUENCE OF SEISMIC ACTION ON THE CONSTRUCTION COST OF THE LOAD-BEARING STRUCTURE OF A TEN-STOREY R/C BUILDING","authors":"Panagiotis Sioulas, T. Chrysanidis, N. Alamanis, G. Papageorgiou","doi":"10.7712/120121.8593.18667","DOIUrl":"https://doi.org/10.7712/120121.8593.18667","url":null,"abstract":"Greece is divided into three seismic hazard zones ZI, ZII, ZIII. In the present research work, the same building in the three seismic zones of Greece is modeled, analysed and dimensioned and then the construction cost of its structural body is estimated. The building modeling was performed in SAP2000 using linear finite elements. The analysis of the building was performed by dynamic spectral analysis methods using the design spectrum of EC8. A ten-storey building with a standard floor plan per floor was used. The purpose of this research paper is through comparative analytical estimation of construction costs to demonstrate whether the cost of construction of the bearing structure of a reinforced concrete building is affected by the area seismic hazard, if this influence is significant and to what extent. Useful conclusions are drawn regarding the influence of seismicity on the construction cost of the load-bearing structure of reinforced concrete buildings.","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89264743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.7712/120121.8548.19314
M. D. Domenico, P. Ricci, G. Verderame
The expected lateral response of reinforced concrete (RC) elements strongly depends on their failure mode. Code-conforming RC members are supposed to exhibit a flexural (F) ductile failure, with complete exploitation of their post-peak displacement/deformation capacity. However, substandard RC elements, which are typical of existing structures, may undergo a shear failure after yielding (FS) or even before yielding (S) of longitudinal reinforcement. In this case, the element is classified as “shear - sensitive” and may be characterized by an abrupt collapse after the attainment of the peak load-capacity, with a fast loss of lateral load-bearing capacity up to the onset of the progressive reduction of the axial load-bearing capacity. This condition may trigger structural collapse, as also shown from surveys of damages due to strong earth-quakes in past and recent times. So, the determination of the failure mode of RC members is paramount for a reliable assessment of the seismic safety of structures. In general, static criteria are applied to pre-classify the expected failure mode of RC members and their response backbone is defined dependently on the determined failure mode. However, a comprehensive approach for modelling, with a unique set of predictive equations, the response envelope of RC members without pre-determining with a deterministic approach their failure mode is missing. In this paper membership functions are defined to determine for RC columns the possibility that they exhibit an F, an FS, or an S failure. A set of basic predictive equations are defined, based on experimental data, to define a multilinear response envelope. The proposed equations may be combined with membership functions to use a unique set of equation able to reproduce the behaviour of RC columns with different expected failure modes.
{"title":"ASSESSMENT OF THE RESPONSE ENVELOPE OF REINFORCED CONCRETE MEMBERS WITH DIFFERENT FAILURE MODES","authors":"M. D. Domenico, P. Ricci, G. Verderame","doi":"10.7712/120121.8548.19314","DOIUrl":"https://doi.org/10.7712/120121.8548.19314","url":null,"abstract":"The expected lateral response of reinforced concrete (RC) elements strongly depends on their failure mode. Code-conforming RC members are supposed to exhibit a flexural (F) ductile failure, with complete exploitation of their post-peak displacement/deformation capacity. However, substandard RC elements, which are typical of existing structures, may undergo a shear failure after yielding (FS) or even before yielding (S) of longitudinal reinforcement. In this case, the element is classified as “shear - sensitive” and may be characterized by an abrupt collapse after the attainment of the peak load-capacity, with a fast loss of lateral load-bearing capacity up to the onset of the progressive reduction of the axial load-bearing capacity. This condition may trigger structural collapse, as also shown from surveys of damages due to strong earth-quakes in past and recent times. So, the determination of the failure mode of RC members is paramount for a reliable assessment of the seismic safety of structures. In general, static criteria are applied to pre-classify the expected failure mode of RC members and their response backbone is defined dependently on the determined failure mode. However, a comprehensive approach for modelling, with a unique set of predictive equations, the response envelope of RC members without pre-determining with a deterministic approach their failure mode is missing. In this paper membership functions are defined to determine for RC columns the possibility that they exhibit an F, an FS, or an S failure. A set of basic predictive equations are defined, based on experimental data, to define a multilinear response envelope. The proposed equations may be combined with membership functions to use a unique set of equation able to reproduce the behaviour of RC columns with different expected failure modes.","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"129 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75393812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.7712/120121.8507.19406
F. Clementi, A. Ferrante, E. Giordano, S. Lenci
{"title":"CONTINUOUS AND DISCONTINUOUS DESCRIPTIONS OF BLOCKED STRUCTURES: THE CASE STUDY OF SANTISSIMO CROCIFISSO CHURCHES IN PRETARE (ITALY)","authors":"F. Clementi, A. Ferrante, E. Giordano, S. Lenci","doi":"10.7712/120121.8507.19406","DOIUrl":"https://doi.org/10.7712/120121.8507.19406","url":null,"abstract":"","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75434234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.7712/120121.8510.19449
E. Onescu, I. Onescu, M. Mosoarca
{"title":"OPTIMIZATION OF EMPIRICAL SEISMIC VULNERABILITY ASSESSMENT FOR MASONRY BUILDINGS FOLLOWING NONLINEAR ANALYSIS","authors":"E. Onescu, I. Onescu, M. Mosoarca","doi":"10.7712/120121.8510.19449","DOIUrl":"https://doi.org/10.7712/120121.8510.19449","url":null,"abstract":"","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"166 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77941487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-01DOI: 10.7712/120121.8860.18700
J. Heremans, Anass Mayou, V. Denoël
{"title":"PERSPECTIVES ON THE ACCELERATION OF THE NUMERICAL ASSESSMENT OF FLUTTER AND BUFFETING RESPONSE OF BRIDGE DECKS","authors":"J. Heremans, Anass Mayou, V. Denoël","doi":"10.7712/120121.8860.18700","DOIUrl":"https://doi.org/10.7712/120121.8860.18700","url":null,"abstract":"","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":"67 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75645027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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