Collapses in drystone prehistoric Scottish broch towers probably started from localised failures at the supports of roofs or decks, settlements, ill-conceived modifications or gradual decay producing long-term accumulation of debris. Another source of instability is their precarious state during excavations. Some of these effects have been simulated as excessive lateral thrust or settlement and are studied here through experimental analysis on wallettes in 1/15 scale, expanding on earlier insight from complete broch models tested to settlement. Wallettes in typical bonds were tested following a parametric study on the effect of thickness, bond and architectural features (openings, corbelled chambers, uneven supports). Failure patterns at overturning and settlement were established triggered at a minimum lateral displacement of one-fifth of the wall thickness. The walls could resist a lateral earth pressure representing debris accumulation at least five times their active earth pressure and resistance to settlement was by arch formation at the base.
{"title":"Local effects of bonding on the strength of drystone masonry in Iron-age brochs","authors":"Dimitris Theodossopoulos, Jenny Gilbertson, Wei He, Katherine Primavesi, Bowen Qiu, Franziska Reutter","doi":"10.1504/ijmri.2023.134183","DOIUrl":"https://doi.org/10.1504/ijmri.2023.134183","url":null,"abstract":"Collapses in drystone prehistoric Scottish broch towers probably started from localised failures at the supports of roofs or decks, settlements, ill-conceived modifications or gradual decay producing long-term accumulation of debris. Another source of instability is their precarious state during excavations. Some of these effects have been simulated as excessive lateral thrust or settlement and are studied here through experimental analysis on wallettes in 1/15 scale, expanding on earlier insight from complete broch models tested to settlement. Wallettes in typical bonds were tested following a parametric study on the effect of thickness, bond and architectural features (openings, corbelled chambers, uneven supports). Failure patterns at overturning and settlement were established triggered at a minimum lateral displacement of one-fifth of the wall thickness. The walls could resist a lateral earth pressure representing debris accumulation at least five times their active earth pressure and resistance to settlement was by arch formation at the base.","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136307771","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 : 2023-01-01DOI: 10.1504/ijmri.2023.10056673
A. Bhaumik, Janani Selvam, B. Mansour
{"title":"The role of sustainability and quality on the relationship between management practices and risks management in construction industry","authors":"A. Bhaumik, Janani Selvam, B. Mansour","doi":"10.1504/ijmri.2023.10056673","DOIUrl":"https://doi.org/10.1504/ijmri.2023.10056673","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66764450","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 : 2023-01-01DOI: 10.1504/ijmri.2023.10059525
José V. Lemos
{"title":"Damping models for dynamic analysis of masonry vaults with discrete elements","authors":"José V. Lemos","doi":"10.1504/ijmri.2023.10059525","DOIUrl":"https://doi.org/10.1504/ijmri.2023.10059525","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135913104","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 : 2023-01-01DOI: 10.1504/ijmri.2023.10053442
A. Carpinteri, O. Borla, S. Invernizzi, G. Lacidogna, G. Olivetti, A. Tommaso
{"title":"Garisenda Tower in Bologna (Italy): health monitoring by different nondestructive testing techniques","authors":"A. Carpinteri, O. Borla, S. Invernizzi, G. Lacidogna, G. Olivetti, A. Tommaso","doi":"10.1504/ijmri.2023.10053442","DOIUrl":"https://doi.org/10.1504/ijmri.2023.10053442","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66764440","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 : 2023-01-01DOI: 10.1504/ijmri.2023.129560
N. Chandrakar
{"title":"Review of thermal performance, hygrothermal behaviour, and carbon sequestration in hemp concrete in order to make it an energy-efficient and eco-friendly material","authors":"N. Chandrakar","doi":"10.1504/ijmri.2023.129560","DOIUrl":"https://doi.org/10.1504/ijmri.2023.129560","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66764711","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 : 2023-01-01DOI: 10.1504/ijmri.2023.131838
E. Giordano, A. Ferrante, G. P. Salachoris, M. Schiavoni, F. Clementi, S. Lenci
{"title":"Dynamic identification and numerical model updating of an old bell-tower in Marche Region (Italy)","authors":"E. Giordano, A. Ferrante, G. P. Salachoris, M. Schiavoni, F. Clementi, S. Lenci","doi":"10.1504/ijmri.2023.131838","DOIUrl":"https://doi.org/10.1504/ijmri.2023.131838","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66764769","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 : 2023-01-01DOI: 10.1504/ijmri.2023.129574
Eloisa Fazzi, Giulia Misseri, Luisa Rovero
In this study, a composite system designed for the reinforcement of masonry structures is investigated. The constituents of the composite system are a basalt-fibre mesh and a lime-based mortar matrix. Two basalt-fibre mesh textiles showing one double the reinforcement of the other due to a tighter spacing of yarns were considered. Three solutions were tested: one layer of the looser textile, one layer of the tighter, and two layers of the looser one, which provided the same reinforcement ratio of the tighter. The experimental campaign addressed single-lap shear tests on bricks. Also, within a fracture process zone approach, bond behaviour of the composite system, is modelled in closed form assuming a trilinear cohesive material law, CML, and solving the system of differential equations. Further, a numerical finite-difference model, based on the same trilinear CML of the analytical model, is set up and compared to experimental results.
{"title":"Experimental, analytical, and numerical investigations on bond behaviour of basalt TRM systems","authors":"Eloisa Fazzi, Giulia Misseri, Luisa Rovero","doi":"10.1504/ijmri.2023.129574","DOIUrl":"https://doi.org/10.1504/ijmri.2023.129574","url":null,"abstract":"In this study, a composite system designed for the reinforcement of masonry structures is investigated. The constituents of the composite system are a basalt-fibre mesh and a lime-based mortar matrix. Two basalt-fibre mesh textiles showing one double the reinforcement of the other due to a tighter spacing of yarns were considered. Three solutions were tested: one layer of the looser textile, one layer of the tighter, and two layers of the looser one, which provided the same reinforcement ratio of the tighter. The experimental campaign addressed single-lap shear tests on bricks. Also, within a fracture process zone approach, bond behaviour of the composite system, is modelled in closed form assuming a trilinear cohesive material law, CML, and solving the system of differential equations. Further, a numerical finite-difference model, based on the same trilinear CML of the analytical model, is set up and compared to experimental results.","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135584269","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 : 2023-01-01DOI: 10.1504/ijmri.2023.10056765
Janani Selvam
{"title":"Evaluation of the load carrying capacity of cold formed steel stiffened web section","authors":"Janani Selvam","doi":"10.1504/ijmri.2023.10056765","DOIUrl":"https://doi.org/10.1504/ijmri.2023.10056765","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66764470","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 : 2023-01-01DOI: 10.1504/ijmri.2023.129570
M. Sassu
{"title":"How structural engineering can help archaeology","authors":"M. Sassu","doi":"10.1504/ijmri.2023.129570","DOIUrl":"https://doi.org/10.1504/ijmri.2023.129570","url":null,"abstract":"","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66764753","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}
The aim of the paper is to study the reliability of simplified numerical models (SNMs) for seismic structural assessment identification accuracy. The advantages of using SNMs with respect to the traditional finite element approaches come from their commercial availability, the structural templates already implemented, and the reduced computational burden that allow the evaluation of the seismic structural assessment in some minutes instead of days. But the drawback to using SNMs alone in the study of large-scale structures is the crude accuracy justified by the simplifications they assume. This study is conducted on an actual case: the Trentacapilli palace (Bisignano, Calabria, Italy). This palace was chosen because it is subjected to foundation subsidence and includes different structural elements, allowing different kinds of SNMs to be used.
{"title":"Seismic analysis of an ancient masonry palace through two simplified numerical methods","authors":"Carmelo Scuro, Renato Sante Olivito, Francesco Lamonaca, Domenico Luca Carnì, Cinzia Angotti","doi":"10.1504/ijmri.2023.127492","DOIUrl":"https://doi.org/10.1504/ijmri.2023.127492","url":null,"abstract":"The aim of the paper is to study the reliability of simplified numerical models (SNMs) for seismic structural assessment identification accuracy. The advantages of using SNMs with respect to the traditional finite element approaches come from their commercial availability, the structural templates already implemented, and the reduced computational burden that allow the evaluation of the seismic structural assessment in some minutes instead of days. But the drawback to using SNMs alone in the study of large-scale structures is the crude accuracy justified by the simplifications they assume. This study is conducted on an actual case: the Trentacapilli palace (Bisignano, Calabria, Italy). This palace was chosen because it is subjected to foundation subsidence and includes different structural elements, allowing different kinds of SNMs to be used.","PeriodicalId":43060,"journal":{"name":"International Journal of Masonry Research and Innovation","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134954750","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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