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Comprehensive Analysis of Failures in Cantilever Type I-B Traffic Signs in Puerto Rico Due to Hurricane Maria's Impact, and Recommendations to Enhance Their Resilience to Extreme Wind Events = = Analisis comprensivo de las fallas de senales de transito en voladizo tipo I-B en Puerto Rico debidas al impacto del huracan Maria, y recomendaciones para aumentar la resiliencia de las mismas ante eventos de vientos extremos.

紀錄類型:	書目-語言資料,手稿 : Monograph/item
正題名/作者:	Comprehensive Analysis of Failures in Cantilever Type I-B Traffic Signs in Puerto Rico Due to Hurricane Maria's Impact, and Recommendations to Enhance Their Resilience to Extreme Wind Events =/
其他題名:	Analisis comprensivo de las fallas de senales de transito en voladizo tipo I-B en Puerto Rico debidas al impacto del huracan Maria, y recomendaciones para aumentar la resiliencia de las mismas ante eventos de vientos extremos.
其他題名:	Analisis comprensivo de las fallas de senales de transito en voladizo tipo I-B en Puerto Rico debidas al impacto del huracan Maria, y recomendaciones para aumentar la resiliencia de las mismas ante eventos de vientos extremos.
作者:	Vega-Rosado, Geoffrey J.
面頁冊數:	1 online resource (456 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-02, Section: B.
Contained By:	Dissertations Abstracts International85-02B.
標題:	Engineering. -
電子資源:	click for full text (PQDT)
ISBN:	9798380077446

Comprehensive Analysis of Failures in Cantilever Type I-B Traffic Signs in Puerto Rico Due to Hurricane Maria's Impact, and Recommendations to Enhance Their Resilience to Extreme Wind Events = = Analisis comprensivo de las fallas de senales de transito en voladizo tipo I-B en Puerto Rico debidas al impacto del huracan Maria, y recomendaciones para aumentar la resiliencia de las mismas ante eventos de vientos extremos.
Vega-Rosado, Geoffrey J.

Comprehensive Analysis of Failures in Cantilever Type I-B Traffic Signs in Puerto Rico Due to Hurricane Maria's Impact, and Recommendations to Enhance Their Resilience to Extreme Wind Events =Analisis comprensivo de las fallas de senales de transito en voladizo tipo I-B en Puerto Rico debidas al impacto del huracan Maria, y recomendaciones para aumentar la resiliencia de las mismas ante eventos de vientos extremos.Analisis comprensivo de las fallas de senales de transito en voladizo tipo I-B en Puerto Rico debidas al impacto del huracan Maria, y recomendaciones para aumentar la resiliencia de las mismas ante eventos de vientos extremos. - 1 online resource (456 pages)

Source: Dissertations Abstracts International, Volume: 85-02, Section: B.

Thesis (Ph.D.)--Polytechnic University of Puerto Rico, 2023.

Includes bibliographical references

Hurricane Maria impacted Puerto Rico in September 2017 and caused around $90 billion in damages, affecting almost any component of the transportation infrastructure, including the cantilever traffic signals (I-B), the focus of this study. This research performed an exhaustive investigation evaluating the damage experienced by these signals due to wind loads and identified two main failure modes: damages to the foundation system and structural damages to the pedestal. The inspected signals were geolocated and documented, and a GIS tool was developed to locate and present the gathered information. Seven representative exposure cases were identified to verify the wind pressures according to ATC Hazard by Location wind speeds. Each traffic sign was modeled using ANSYS Fluent R19.2 to perform a CFD analysis and compare the pressure results with design codes ASCE 7 and AASHTO. The code that presented the most accurate pressure results was identified as a result of this analysis. Recommendations were presented to strengthen the design of this type of sign and contribute to their resilience. In summary, Hurricane Maria caused significant damage to cantilever traffic signals in Puerto Rico, and the investigation found that the foundation and pedestal are the most vulnerable parts of these signals to high-intensity wind events.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380077446Subjects--Topical Terms:

561152
Engineering.
Subjects--Index Terms:

AnalisisIndex Terms--Genre/Form:

554714
Electronic books.

Comprehensive Analysis of Failures in Cantilever Type I-B Traffic Signs in Puerto Rico Due to Hurricane Maria's Impact, and Recommendations to Enhance Their Resilience to Extreme Wind Events = = Analisis comprensivo de las fallas de senales de transito en voladizo tipo I-B en Puerto Rico debidas al impacto del huracan Maria, y recomendaciones para aumentar la resiliencia de las mismas ante eventos de vientos extremos.
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246 3 1 $a Analisis comprensivo de las fallas de senales de transito en voladizo tipo I-B en Puerto Rico debidas al impacto del huracan Maria, y recomendaciones para aumentar la resiliencia de las mismas ante eventos de vientos extremos.
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502 $a Thesis (Ph.D.)--Polytechnic University of Puerto Rico, 2023.
504 $a Includes bibliographical references
520 $a Hurricane Maria impacted Puerto Rico in September 2017 and caused around $90 billion in damages, affecting almost any component of the transportation infrastructure, including the cantilever traffic signals (I-B), the focus of this study. This research performed an exhaustive investigation evaluating the damage experienced by these signals due to wind loads and identified two main failure modes: damages to the foundation system and structural damages to the pedestal. The inspected signals were geolocated and documented, and a GIS tool was developed to locate and present the gathered information. Seven representative exposure cases were identified to verify the wind pressures according to ATC Hazard by Location wind speeds. Each traffic sign was modeled using ANSYS Fluent R19.2 to perform a CFD analysis and compare the pressure results with design codes ASCE 7 and AASHTO. The code that presented the most accurate pressure results was identified as a result of this analysis. Recommendations were presented to strengthen the design of this type of sign and contribute to their resilience. In summary, Hurricane Maria caused significant damage to cantilever traffic signals in Puerto Rico, and the investigation found that the foundation and pedestal are the most vulnerable parts of these signals to high-intensity wind events.
520 $a El huracan Maria impacto Puerto Rico en septiembre de 2017 y causo alrededor de $90 mil millones en danos, afectando casi todos los componentes de la infraestructura de trasportacion, incluyendo las senales de transito tipo voladizo (I-B), el objetivo de este estudio. Esta investigacion desarrollo una exploracion y evaluacion exhaustiva de los danos sufridos por estas senales debido a las cargas del viento y se identificaron dos principales modos de falla: danos en el sistema de cimentacion y danos estructurales en el pedestal. Se geolocalizaron y documentaron las senales inspeccionadas, se desarrollo una herramienta GIS para localizarlas y presentar la informacion relevante. Se identificaron siete casos de exposicion representativos para verificar las presiones en el letrero causadas por el viento de acuerdo con las magnitudes de las velocidades segun el ATC Hazard by Location. Se modelo la estructura de la senal de transito utilizando ANSYS Fluent R19.2 para realizar un CFD, en cada caso de exposicion y comparar los resultados con los codigos de diseno ASCE 7 y AASHTO. Como resultado de este analisis se identifico el codigo que presentaba mayor precision en los resultados de las presiones. Se presentaron recomendaciones para robustecer el diseno de estas senales y aportar a su resiliencia. En resumen, el huracan Maria causo danos significativos en las senales de transito tipo voladizo en Puerto Rico, y la investigacion encontro que la cimentacion y el pedestal son las partes mas vulnerables de estas senales ante eventos de alta intensidad de vientos.
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538 $a Mode of access: World Wide Web
650 4 $a Engineering. $3 561152
650 4 $a Transportation. $3 558117
650 4 $a Civil engineering. $3 561339
653 $a Analisis
653 $a Codigos
653 $a Letreros
653 $a Presion
653 $a Resiliencia
653 $a Vientos
653 $a Puerto Rico
653 $a Hurricane Maria
653 $a Traffic signals
653 $a GIS tool
653 $a Wind events
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710 2 $a Polytechnic University of Puerto Rico. $b Engineering and Applied Sciences. $3 1465720
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