Pub Date : 2022-01-01DOI: 10.1504/ijmri.2022.10051379
M. Alam, S. Anas
{"title":"Dynamic behaviour of free-standing unreinforced masonry and composite walls under close-range blast loadings: a finite element investigation","authors":"M. Alam, S. Anas","doi":"10.1504/ijmri.2022.10051379","DOIUrl":"https://doi.org/10.1504/ijmri.2022.10051379","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66764110","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 : 2021-01-08DOI: 10.1504/ijmri.2020.10032221
Mónica Y. Oña Vera, G. Metelli, J. Barros, G. Plizzari
Nowadays, existing masonry buildings are frequently modified to satisfy living demands. These modifications may require the addition of new windows or doors in walls of structural functionality. In engineering practice, such modifications are generally designed and verified for vertical loads while, for seismic loads, the changes in the walls' structural behaviour are not yet fully understood. Consequently, current design may incorrectly estimate the in-plane response of the perforated walls. This paper presents an evaluation of the effects of the introduction of new openings in masonry walls under in-plane loads by a numerical and experimental approach. Two parameters are considered for the numerical studies: opening size and eccentricity. The results show that the loss in stiffness and strength due to new openings are proportional to the opening area and that the eccentricity might change the wall response going from rocking to shear dominant behaviour, depending on the load direction.
{"title":"New openings in unreinforced masonry walls under in-plane loads: a numerical and experimental study","authors":"Mónica Y. Oña Vera, G. Metelli, J. Barros, G. Plizzari","doi":"10.1504/ijmri.2020.10032221","DOIUrl":"https://doi.org/10.1504/ijmri.2020.10032221","url":null,"abstract":"Nowadays, existing masonry buildings are frequently modified to satisfy living demands. These modifications may require the addition of new windows or doors in walls of structural functionality. In engineering practice, such modifications are generally designed and verified for vertical loads while, for seismic loads, the changes in the walls' structural behaviour are not yet fully understood. Consequently, current design may incorrectly estimate the in-plane response of the perforated walls. This paper presents an evaluation of the effects of the introduction of new openings in masonry walls under in-plane loads by a numerical and experimental approach. Two parameters are considered for the numerical studies: opening size and eccentricity. The results show that the loss in stiffness and strength due to new openings are proportional to the opening area and that the eccentricity might change the wall response going from rocking to shear dominant behaviour, depending on the load direction.","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42461742","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: 10.1504/IJMRI.2021.10038417
I. R. Mithanthaya, Shriram Marathe
{"title":"Investigations on eco-friendly masonry structural elements developed using slag-fly ash-glass powder-based alkali activated concrete","authors":"I. R. Mithanthaya, Shriram Marathe","doi":"10.1504/IJMRI.2021.10038417","DOIUrl":"https://doi.org/10.1504/IJMRI.2021.10038417","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66763413","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: 10.1504/ijmri.2021.112067
C. Chisari, L. Macorini, B. Izzuddin, C. Amadio
35 Performing a realistic assessment of unreinforced masonry structures involves designing and executing 36 appropriate experimental tests on masonry components for determining the material model parameters 37 to be used in structural analysis. Considering recent developments in which inverse analysis was used 38 as calibration framework, a vertical flat-jack test is investigated in this paper. Two simplified models 39 are described for the analysis of the stress state in the masonry due to the pressure transferred by the 40 flat-jack. Furthermore, with the aim of designing the sensor setup for the test, a POD analysis on the 41 deformation state of the structure is carried out, highlighting the basic deformation modes which 42 govern the response. The results show that high stresses and local modes can occur in the proximity 43 of the flat-jack, and thus local use of FRP reinforcement is recommended to avoid undesired brittle 44 crack propagation which may prevent accurate calibration of mortar joint mechanical characteristics. 45
{"title":"Analysis of the stress and deformation states in the vertical flat-jack test","authors":"C. Chisari, L. Macorini, B. Izzuddin, C. Amadio","doi":"10.1504/ijmri.2021.112067","DOIUrl":"https://doi.org/10.1504/ijmri.2021.112067","url":null,"abstract":"35 Performing a realistic assessment of unreinforced masonry structures involves designing and executing 36 appropriate experimental tests on masonry components for determining the material model parameters 37 to be used in structural analysis. Considering recent developments in which inverse analysis was used 38 as calibration framework, a vertical flat-jack test is investigated in this paper. Two simplified models 39 are described for the analysis of the stress state in the masonry due to the pressure transferred by the 40 flat-jack. Furthermore, with the aim of designing the sensor setup for the test, a POD analysis on the 41 deformation state of the structure is carried out, highlighting the basic deformation modes which 42 govern the response. The results show that high stresses and local modes can occur in the proximity 43 of the flat-jack, and thus local use of FRP reinforcement is recommended to avoid undesired brittle 44 crack propagation which may prevent accurate calibration of mortar joint mechanical characteristics. 45","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66763516","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: 10.1504/ijmri.2021.10040997
S.B. Singh, Vinay Shimpi, M. Sivasubramanian
{"title":"Present Day Status and Numerical Modeling of Heritage Masonry Bridges of Kalka-Shimla Mountain Railways","authors":"S.B. Singh, Vinay Shimpi, M. Sivasubramanian","doi":"10.1504/ijmri.2021.10040997","DOIUrl":"https://doi.org/10.1504/ijmri.2021.10040997","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66763608","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: 10.1504/ijmri.2021.10043691
F. Demarco, S. Porzio, G. Alì, C. Scuro
{"title":"Development of a structural health monitoring system with IoT smart nodes based on Mathematical model of inverted pendulums equipped with accelerometers","authors":"F. Demarco, S. Porzio, G. Alì, C. Scuro","doi":"10.1504/ijmri.2021.10043691","DOIUrl":"https://doi.org/10.1504/ijmri.2021.10043691","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66763505","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: 10.1504/ijmri.2021.10039867
S. Praburanganathan, S. Chithra
{"title":"Stimulus on strength and durability of granite powder in the waste-based masonry units with copper slag and crumb rubber as partial substitute of fine aggregate","authors":"S. Praburanganathan, S. Chithra","doi":"10.1504/ijmri.2021.10039867","DOIUrl":"https://doi.org/10.1504/ijmri.2021.10039867","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66763541","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: 10.1504/ijmri.2021.10039926
Vasillis Sarhosis, T. Bui, X. Nguyen, Tien Nguyen, Minh-Cuong Le, T. Bui
{"title":"Mechanical behaviour of novel earth concrete walls","authors":"Vasillis Sarhosis, T. Bui, X. Nguyen, Tien Nguyen, Minh-Cuong Le, T. Bui","doi":"10.1504/ijmri.2021.10039926","DOIUrl":"https://doi.org/10.1504/ijmri.2021.10039926","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66763552","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: 10.1504/ijmri.2021.10041000
S. Bennati, R. Barsotti, F. Barsi
{"title":"Studying the equilibrium of oval-base pointed masonry domes: the case of Pisa Cathedral","authors":"S. Bennati, R. Barsotti, F. Barsi","doi":"10.1504/ijmri.2021.10041000","DOIUrl":"https://doi.org/10.1504/ijmri.2021.10041000","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66763199","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: 10.1504/ijmri.2021.10042914
M. Vicario, C. Balocco
{"title":"An integrated experimental and numerical approach for preventive Cultural Heritage conservation. The San Marco Museum case study.","authors":"M. Vicario, C. Balocco","doi":"10.1504/ijmri.2021.10042914","DOIUrl":"https://doi.org/10.1504/ijmri.2021.10042914","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66763372","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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