12th International Conference on Structural Analysis of Historical Constructions最新文献_第9页

Automated Model Updating of a Masonry Historical Church Based on Operational Modal Analysis: the Case Study of San Giovanni in Macerata 基于操作模态分析的砖石历史教堂模型自动更新——以马切拉塔圣乔瓦尼为例

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.038

Silvia Santini, C. Baggio, Enrico DA Gai, V. Sabbatini, C. Sebastiani

{"title":"Automated Model Updating of a Masonry Historical Church Based on Operational Modal Analysis: the Case Study of San Giovanni in Macerata","authors":"Silvia Santini, C. Baggio, Enrico DA Gai, V. Sabbatini, C. Sebastiani","doi":"10.23967/sahc.2021.038","DOIUrl":"https://doi.org/10.23967/sahc.2021.038","url":null,"abstract":". Over the past few decades, the conservation and seismic assessment of historical buildings has gained great importance. In particular, the prediction of the dynamic response of masonry constructions plays a central role in retrofitting and conservation interventions. Finite element modelling has become the most common and accessible approach to study the behavior of complex masonry structures, however, the gap between numerical and experimental analysis may lead to erroneous results. This work describes the model updating procedure applied to the finite element model of San Giovanni’s church in Macerata, condemned in October 2016 after the Central Italy Earthquake. The laboratory of Proof and Research on Structures and Materials of Roma Tre University carried out an extensive in-situ testing campaign including geometric survey, video endoscopy, flat-jack test, sonic tomography and ambient vibrations test in order to investigate the state of the building. The work involved both numerical and experimental analysis: the results of the testing campaign were interpreted and correlated with an accurate finite element model developed with the software Midas Gen. Operational modal analysis was performed in order to extract the modal parameters of the building (modal frequencies, shape vectors and modal damping). Material characteristics and boundary conditions were updated according to the Douglas-Reid method. In the end, the final model was compared to the initial model to evaluate and discuss the process.","PeriodicalId":176260,"journal":{"name":"12th International Conference on Structural Analysis of Historical Constructions","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121566261","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

Influence of the Spatial Variability of Joints Characteristics on the Elastic Properties of Masonry 节理空间变异性对砌体弹性性能的影响

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.133

Maria Laura De Bellis, Vincenzo Sepe, Marcello Vasta

引用次数: 0

A Comparison Between Empirical Procedures for the Definition of Vulnerability Classes of Masonry Buildings: Application to Five Historical Centres Struck by 2016 Central Italy Earthquake 砌体建筑易损性等级界定的经验程序比较——以2016年意大利中部地震五个历史中心为例

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.003

Y. Saretta, L. Sbrogiò, M. Valluzzi

{"title":"A Comparison Between Empirical Procedures for the Definition of Vulnerability Classes of Masonry Buildings: Application to Five Historical Centres Struck by 2016 Central Italy Earthquake","authors":"Y. Saretta, L. Sbrogiò, M. Valluzzi","doi":"10.23967/sahc.2021.003","DOIUrl":"https://doi.org/10.23967/sahc.2021.003","url":null,"abstract":". The definition of seismic risk scenarios necessarily depends on the attribution of a vulnerability class to each building of a stock. In the macroseismic scale (EMS-98) the vulnerability class – from A to F – results from the combination between horizontal and vertical structures. On the basis of post-event surveys carried out in Italy after the earthquakes occurred in the last 50 years, many rules for converting the masonry quality and the stiffness of horizontal diaphragms into a vulnerability class have been proposed. However, despite the now high number of retrofitted or strengthened buildings in Italy, structural interventions are not mentioned in these procedures, except for metal tie rods and r.c. tie beams. The paper proposes a critical approach to the definition of vulnerability classes, by the means of applying the conversion rules to the same sample of 525 masonry buildings located in five historical centres struck by 2016 Central Italy earthquake: Acquasanta Terme, Campi Alto di Norcia, Castelsantangelo sul Nera, Muccia and Vezzano. They have been chosen due to the extensive strengthening campaigns that had been carried out after earlier seismic events. The preliminary recognition of the structural features of each building happens at the terms of the MUSE-DV Masonry, a rapid visual screening procedure recently proposed by the authors. The damage probability matrices (DPMs), obtained from each conversion, are compared to those from a theoretical model proposed for the EMS-98. Given the same poor masonry quality, the existing rules","PeriodicalId":176260,"journal":{"name":"12th International Conference on Structural Analysis of Historical Constructions","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130507419","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: 1

Typological Classification and Observed Damage Patterns of Masonry Churches After the 2016 Central Italy Earthquake 2016年意大利中部地震后砖石教堂的类型分类和观察到的破坏模式

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.311

G. Cianchino, C. De Matteis, G. Brando

{"title":"Typological Classification and Observed Damage Patterns of Masonry Churches After the 2016 Central Italy Earthquake","authors":"G. Cianchino, C. De Matteis, G. Brando","doi":"10.23967/sahc.2021.311","DOIUrl":"https://doi.org/10.23967/sahc.2021.311","url":null,"abstract":". The seismic protection of cultural heritage is an important topic that has been faced by several researchers in the last decades. Seismic events of the past have highlighted the need of achieving a proper knowledge of the vulnerability of cultural heritage, in particular of churches, in order to put in the field proper mitigation measures at the large scale. According to this premise, this paper deals with the damage scenario observed on eighty seven churches hit by the 2016 Central Italy earthquake. In a first stage, the most important structural features of the studied churches are discussed and threated by the statistical standpoint. The reported information have been collected through the A-DC form, adopted by the Civil Protection Department and by the Ministry of Heritage and Cultural Activity and Tourism (MiBACT), which was used in the framing of the damage reconnaissance activity carried out by the ReLUIS Italian consortium in the aftermath of the earthquake. Also, the form has been used in order assess the damage of each macro-element and, then, to assign a damage index to each church. The presented work is framed in a wider research activity that aims at providing a predictive methodology for the vulnerability assessment of churches at the regional scale. This methodology was already calibrated on the basis of the 2009 L’Aquila seismic event. The outcomes presented in this paper will serve to further prove the reliability of the proposed model.","PeriodicalId":176260,"journal":{"name":"12th International Conference on Structural Analysis of Historical Constructions","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130675270","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

The Influence of the Passive Earth Pressure and other Factors on the Stability of the Underground Masonry Vaults of the Paris Metro 被动土压力等因素对巴黎地铁地下砌体拱顶稳定性的影响

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.289

O. Regan, E. Bourgeois, J. Douroux, A. Desbordes

{"title":"The Influence of the Passive Earth Pressure and other Factors on the Stability of the Underground Masonry Vaults of the Paris Metro","authors":"O. Regan, E. Bourgeois, J. Douroux, A. Desbordes","doi":"10.23967/sahc.2021.289","DOIUrl":"https://doi.org/10.23967/sahc.2021.289","url":null,"abstract":". This paper presents an analysis of the behavior of masonry tunnel vaults of the Paris metro when their state of equilibrium is altered. These tunnels were built with a masonry vault combined with sidewalls and a slab made of unreinforced concrete. The main case studied here is that of the spreading of the vault’s supports as a result of nearby construction works. Numerical computations are carried out using a specifically developed model for the masonry that combines a homogenization technique with damage models. An interface between the tunnel and the ground allows the study of the soil-structure interaction. The proposed model identifies the possible hinging failure mechanisms and their configuration based on the horizontal displacements and the geometry of the structure. Several other simpler constitutive laws for the masonry are also used and then compared with the proposed model. An analysis on the loss of the passive earth pressure and the deformation of the structure are also provided. Based on the numerical simulations made and real measurements, it was observed that the studied underground masonry vaults may withstand several","PeriodicalId":176260,"journal":{"name":"12th International Conference on Structural Analysis of Historical Constructions","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129476790","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

Thermal Behavior Assessment of Two Types of Roofs of the Dominican Vernacular Housing 多明尼加民居两种屋顶的热性能评估

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.303

E. Prieto-Vicioso, L. Ruiz-Valero, V. Flores-Sasso

引用次数: 0

Characterization of FRCM- and FRP-Masonry Bond Behavior FRCM-和frp -砌体粘结行为的表征

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.045

C. Gentilini, C. Carloni, R. Santoro, E. Franzoni

{"title":"Characterization of FRCM- and FRP-Masonry Bond Behavior","authors":"C. Gentilini, C. Carloni, R. Santoro, E. Franzoni","doi":"10.23967/sahc.2021.045","DOIUrl":"https://doi.org/10.23967/sahc.2021.045","url":null,"abstract":". Composites made of fibers embedded in organic or inorganic matrices are efficient systems for reinforcing historical masonry structures to provide strength and ductility with a negligible mass increment. As it is well known, the structural performance of the composites mainly relies on their adhesion to the substrate. There are different methods to test the adhesion of the composite to the substrate: in laboratory direct shear test is the most commonly employed, while on-site the bond between the reinforcement and the substrate is checked by the pull-off test. In this paper, the adhesion of different composites to the same substrate made of fired-clay bricks is investigated by both the shear test and the pull-off test to qualitatively assess the difference in the two methods. Additionally, to investigate whether the bond is affected by the presence of water in the pores, half of the specimens were tested in water saturated conditions. Three different types of matrix (based on epoxy resin, natural hydraulic lime and Portland cement) were used for the composite matrix, without changing the geometry, the type of masonry substrate and the fibers (galvanized steel cords)","PeriodicalId":176260,"journal":{"name":"12th International Conference on Structural Analysis of Historical Constructions","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129427550","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

Combined Shear-Flexural Verification of in Plane Loaded Reinforced and Unreinforced Masonry Walls 加筋与未加筋砌体墙面内剪力-弯联合验证

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.050

A. Benedetti, M. Tarozzi, L. Benedetti

引用次数: 0

Foundation Development from 1890-1942 for Long Span and High Rise Buildings at Mexico City 1890-1942年墨西哥城大跨度高层建筑地基发展

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.115

P. Ana, L. Ana, J. Baez

引用次数: 0

Iron and Steel Construction Workshops in 19th and early 20th century Belgium: Retrieving their Oeuvre via Trade Catalogues 19世纪和20世纪初比利时的钢铁建筑车间:通过贸易目录检索其作品

12th International Conference on Structural Analysis of Historical Constructions Pub Date : 1900-01-01 DOI: 10.23967/sahc.2021.142

I. Wouters, R. Wibaut

引用次数: 0