地震工程与工程振动 Pub Date : 2021-09-01 DOI: 10.7712/120121.8564.19069

G. Minafó, G. Camarda

引用次数: 2

LARGE-DISPLACEMENT RESPONSE OF UNREINFORCED MASONRY STRUCTURES: COMPARISON BETWEEN ANALYTICAL SOLUTIONS AND DEM MODELS INCLUDING OPEN-SOURCE SOFTWARE 无筋砌体结构的大位移响应:解析解与含开源软件的dem模型的比较

地震工程与工程振动 Pub Date : 2021-06-28 DOI: 10.7712/120121.8788.19942

Igor Bouckaert, M. Godio, J. Almeida

引用次数: 1

3D ROCKING MOTION: BLIND PREDICTION CONTEST RESULTS AND INFLUENCE OF EVALUATION METRIC ON THE RANKINGS 三维摇摆运动:盲预测竞赛结果及评价指标对排名的影响

地震工程与工程振动 Pub Date : 2021-06-01 DOI: 10.7712/120121.8590.18977

Michalis F. Vassiliou, M. Broccardo, C. Cengiz, M. Dietz, L. Dihoru, S. Günay, K. Mosalam, G. Mylonakis, A. Sextos, B. Stojadinović

引用次数: 0

CYCLIC TESTING OF 1:40 SCALE CANTILEVER RC ELEMENTS WITH DIGITALLY MANUFACTURED REINFORCEMENT 数字制造钢筋的1:40比例悬臂钢筋混凝土构件的循环试验

地震工程与工程振动 Pub Date : 2021-06-01 DOI: 10.7712/120121.8545.18965

L. Giudice, R. Wróbel, Antonios A. Katsamakas, C. Leinenbach, Michalis F. Vassiliou

{"title":"CYCLIC TESTING OF 1:40 SCALE CANTILEVER RC ELEMENTS WITH DIGITALLY MANUFACTURED REINFORCEMENT","authors":"L. Giudice, R. Wróbel, Antonios A. Katsamakas, C. Leinenbach, Michalis F. Vassiliou","doi":"10.7712/120121.8545.18965","DOIUrl":"https://doi.org/10.7712/120121.8545.18965","url":null,"abstract":"Time history analysis is considered as the state-of-the-art in modeling of the seismic response of RC structures. Its validation involves predicting the response of an RC structure tested on a shaking table. However, blind prediction contests show that most contestants fail to predict the seismic response of the tested specimens. Given that numerical models are able to accurately capture the behavior of RC members at a component level, we can conclude that a large part of the error sources from the assumptions made to pass from component level to system level, i.e. assumptions related to damping formulation, component interaction, boundary conditions etc. In parallel, the prediction of the response of a structure subjected to a single ground motion has been proven to be too strict of a validation procedure. Oftentimes, a statistical approach involving many specimens and ground motions is necessary. Such an approach is clearly only feasible at a very small scale. At such scales, the reinforcement fabrication and positioning become major issues. We propose to use additive manufacturing technology to digitally fabricate the reinforcement cage necessary for the micro RC element. This paper presents the results from cyclic tests on 1:40 scale RC cantilever columns. The reinforcing cages were manufactured using a Selective Laser Melting 3D printer that was able to print rebars with submillimeter diameter and yield strength 378MPa. Two different microconcrete mixtures were used based on cement and gypsum. Each sample was reinforced with 18 longitudinal rebars of 0.6mm diameter, and 0.35mm stirrups with 2.5mm of spacing. The cyclic behavior of the columns closely resembles the behavior of full-scale columns indicating that such small-scale specimens can be used of the statistical validation of global level assumptions that numerical models make.","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80506133","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}

引用次数: 0

SEISMIC RETROFITTING TECHNIQUES FOR EXISTING MASONRY BUILDINGS 现有砖石建筑的抗震加固技术

地震工程与工程振动 Pub Date : 2021-01-01 DOI: 10.7712/120121.8514.19628

Ida Mascolo, A. Fortunato, C. Olivieri, A. Gesualdo

引用次数: 4

A NEW PARALLEL ALGORITHM FOR THE OPTIMUM EMBEDDED REBAR MESH GENERATION FOR LARGE-SCALE REINFORCED CONCRETE STRUCTURES 一种大型钢筋混凝土结构内嵌钢筋网格优化并行生成算法

地震工程与工程振动 Pub Date : 2021-01-01 DOI: 10.7712/120121.8771.18591

Dewald Z. Gravett, G. Markou

引用次数: 0

APPLICATION OF THE EMPIRICAL PREDICTIVE DAMAGE MODEL OF HISTORICAL CHURCHES 历史教堂实证预测损害模型的应用

地震工程与工程振动 Pub Date : 2021-01-01 DOI: 10.7712/120121.8663.18917

Claudia Canuti, M. Morici, A. Dall'asta, G. Leoni

引用次数: 0

FRAGILITY OF EXISTING ITALIAN BRIDGES TO TRAFFIC LOADS 意大利现有桥梁对交通负荷的脆弱性

地震工程与工程振动 Pub Date : 2021-01-01 DOI: 10.7712/120121.8614.18818

Giacomo Miluccio, D. Losanno, F. Parisi, E. Cosenza

引用次数: 0

OPTIMIZATION OF THE SLIP FORCE IN A NOVEL FRICTION-BASED CONNECTION FOR THE E-CLT TECHNOLOGY e-clt技术新型摩擦连接的滑移力优化

地震工程与工程振动 Pub Date : 2021-01-01 DOI: 10.7712/120121.8631.18620

A. Aloisio, F. Boggian, R. Tomasi

{"title":"OPTIMIZATION OF THE SLIP FORCE IN A NOVEL FRICTION-BASED CONNECTION FOR THE E-CLT TECHNOLOGY","authors":"A. Aloisio, F. Boggian, R. Tomasi","doi":"10.7712/120121.8631.18620","DOIUrl":"https://doi.org/10.7712/120121.8631.18620","url":null,"abstract":"The European Union has sponsored the development of a new friction dissipating system, for improving seismic behaviour of existing buildings. The proposed system consists of CLT-elements connected to the external beams of existing reinforced concrete building using steel profiles. Each of the steel profiles consists of two separate plates connected by a friction connection made by preloaded bolts in elongated holes. The authors carried out the experimental testing of the friction connection by estimating the corresponding hysteresis curve. A Duhem-like mechanical model, matching with the experimental results, simulates the cyclic response of the connection. The authors investigate the seismic performance of a structural archetype, a plane RC frame with CLT shear walls equipped with this sort of friction dampers. It is assessed the optimum preload condition to achieve an optimal seismic performance according to the Italian seismic scenario by the fragility assessments. A selected suite of earthquakes is the basis of Incremental Dynamic Analysis (IDA) of the structural archetype, without and with the friction device. The optimum preload of the dissipating systems descends by optimizing the structural performance: maximizing the dissipated energy by preventing damage to the CLT panel and the reinforced concrete frame.","PeriodicalId":66281,"journal":{"name":"地震工程与工程振动","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75496392","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}

引用次数: 0

FIRST RESULTS OF LONG-TERM MONITORING OF PORTICO VARANO IN THE CAMERINO DUCAL PALACE (ITALY) 卡梅里诺公爵宫瓦拉诺柱廊长期监测的初步结果(意大利)

地震工程与工程振动 Pub Date : 2021-01-01 DOI: 10.7712/120121.8744.19033

Leonardo Cipriani, A. Dall'asta, G. Leoni, M. Morici, A. Zona

引用次数: 2

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