Michel J. Murillo, C. A. Gaviria, Y. Cantillo, Carlos A. Acosta
{"title":"A low-cost approach to monitoring the structural health of pedestrian bridges","authors":"Michel J. Murillo, C. A. Gaviria, Y. Cantillo, Carlos A. Acosta","doi":"10.31808/5CA6E03E5CA4F0D406AC88AD","DOIUrl":"https://doi.org/10.31808/5CA6E03E5CA4F0D406AC88AD","url":null,"abstract":"Changes in dynamic properties of structures, such as damping ratios and natural frequencies can be detected by periodic monitoring (e.g. one time by year). These changes are often indications of structural damage thereby, the maintenance or demolition of the structure can be doing in due time. In the case of pedestrian bridges, people’s movements may produce a resonance state, which leads to excessive deflection that accelerates the deterioration of these structures. Typically, these dynamic properties are detected by using high-cost vibration measurement equipment to achieve high levels of precision (i.e. a very low noise levels). This article studies the measurement of dynamic properties in pedestrian bridges using a tri-axial accelerometer integrated into a mobile phone as a low-cost and alternative practice. Accelerations were recorded on a steel pedestrian bridge (flexible) and on a post-tensioned concrete pedestrian bridge (rigid) located in Barranquilla City (Colombia). Vibrations were induced by a person (e.g., by jumping). Previous studies based on traditional measuring techniques show that two dominant frequencies in both types of bridges can be identified. However, in this study a reliable damping ratio could only be established for the steel bridge that it is associated with the flexibility and the low amplitude of the induced vibrations by a single pedestrian user.","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121725603","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}
{"title":"Concrete reinforced with polypropylene and polyester fibers exposed to fire","authors":"D. Dias, J. Calmon, G. L. Vieira","doi":"10.31808/5ca6e03b5ca4f0d406ac888c","DOIUrl":"https://doi.org/10.31808/5ca6e03b5ca4f0d406ac888c","url":null,"abstract":"","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","volume":"149 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":"122648670","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}
{"title":"Evaluation of geopolymer coatings to prevent bio-corrosion in wastewater concrete pipes","authors":"N. Roghanian, N. Banthia","doi":"10.31808/5CA6E03D5CA4F0D406AC88A5","DOIUrl":"https://doi.org/10.31808/5CA6E03D5CA4F0D406AC88A5","url":null,"abstract":"","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","volume":"352 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":"121899758","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}
{"title":"New perspective in design of innovative UHPFRC structures","authors":"D. Čítek, J. Kolísko, S. Řeháček, D. Dobiáš","doi":"10.31808/5CA6E03D5CA4F0D406AC889B","DOIUrl":"https://doi.org/10.31808/5CA6E03D5CA4F0D406AC889B","url":null,"abstract":"","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","volume":"71 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":"114786865","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}
C. Balestra, G. Savaris, R.J.M. Fakhye, E. Silva, S. Feiber
{"title":"Influence of wind on chloride profiles of concrete structures in marine environment: case study of Arvoredos Island","authors":"C. Balestra, G. Savaris, R.J.M. Fakhye, E. Silva, S. Feiber","doi":"10.31808/5ca6e03f5ca4f0d406ac88b9","DOIUrl":"https://doi.org/10.31808/5ca6e03f5ca4f0d406ac88b9","url":null,"abstract":"","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","volume":"6 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":"124458364","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}
M. Prisco, M. Colombo, P. Martinelli, D. Coronelli
{"title":"Annone overpass: assessment of reinforcement damage effects on collapse","authors":"M. Prisco, M. Colombo, P. Martinelli, D. Coronelli","doi":"10.31808/5CE8B27A1C23164AD13B5239","DOIUrl":"https://doi.org/10.31808/5CE8B27A1C23164AD13B5239","url":null,"abstract":"","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","volume":"AES-19 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":"126548083","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}
{"title":"Permeability and condition of concrete in the Argentine Antarctic‘Carlini’ Base","authors":"A. Benitez, M. Polzinetti","doi":"10.31808/5CA6E03D5CA4F0D406AC88A4","DOIUrl":"https://doi.org/10.31808/5CA6E03D5CA4F0D406AC88A4","url":null,"abstract":"","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","volume":"30 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":"128126058","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}
{"title":"Diagnosis and prognosis for cantilevered beam in multi-family condominium of 40 years of age in the city of Fortaleza","authors":"P. Paiva","doi":"10.31808/5ca6e03b5ca4f0d406ac888b","DOIUrl":"https://doi.org/10.31808/5ca6e03b5ca4f0d406ac888b","url":null,"abstract":"","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","volume":"61 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":"115804089","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}
M. Jabbour, O. Omikrine-Metalssi, M. Quiertant, V. Baroghel-Bouny
{"title":"Physico-mechanical aspects of external sulfate attack: impact of the cement mix design and the sample shape on the expansion","authors":"M. Jabbour, O. Omikrine-Metalssi, M. Quiertant, V. Baroghel-Bouny","doi":"10.31808/5CA6E03B5CA4F0D406AC8893","DOIUrl":"https://doi.org/10.31808/5CA6E03B5CA4F0D406AC8893","url":null,"abstract":"","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","volume":"93 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":"132713368","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}
{"title":"S-N curves for RC beams post-strengthened with prestressed CFRP based on experimental data","authors":"M. Garcez, L. Meneghetti, R. Teixeira","doi":"10.31808/5CA6E03D5CA4F0D406AC88A1","DOIUrl":"https://doi.org/10.31808/5CA6E03D5CA4F0D406AC88A1","url":null,"abstract":"","PeriodicalId":268116,"journal":{"name":"Proceedings 9th International Conference On Concrete Under Severe Conditions - Environment and Loading","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":"124723601","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}