Bridge assessment in Cavite using bridge inventory condition considering large-scale earthquakes

• Main Author: Santos, Kathryn Joy F.
• Format: text
• Language: English
• Published: Animo Repository 2019
• Subjects: Bridges—Philippines—Cavite (Province); Structural analysis (Engineering)—Philippines—Cavite (Province); Civil Engineering
• Online Access: https://animorepository.dlsu.edu.ph/etd_masteral/6396; https://animorepository.dlsu.edu.ph/context/etd_masteral/article/13470/viewcontent/SANTOS___MEP__Bridge_Assessment_3_28_19b.pdf
• Institution: De La Salle University

As the years have gone by, different methodologies of construction of a bridge are not adequately conservative. Many bridges’ serviceability is no longer sufficient as they are used in service for how many years already as the car loads also change over time. That is why many bridges are rehabilitated and or widened for continued operation of bridges, for smooth and safe passage of vehicles and pedestrians. Several studies show that one way to boost the national economy is to increase the trade flow and road networks, bridges, ports and other transport infrastructure improvements that can increase the trade flow. Rapid Assessment is one way to deal with the collection and at the same time, assortment of factual knowledge about something, which can also be an augmentation or a fortification of an existing data. The data is associated with the type, depth, and scope of a problem. It becomes a quick evaluation that is done in a short period of time and becomes a major representation of the accessible resources in the available amount of time in order to determine recovery-orientated requirements, magnitude, and gaps. A variety of assessment methodologies and tools are available to better understand the construction of bridges and to assist with the design of appropriate interventions. Especially in life-threatening situations, rapid 5 assessment can supply the necessary accurate information to make an immediate counter reaction and can provide an immediate overview of a possible danger to an infrastructure that is currently in a critical situation. Particularly, when Philippine Institute of Volcanology and Seismology (PhilVolcs) persisted that there would be a possibility for the Big One, a disastrous earthquake with a magnitude of 7.2 to likely happen in the Philippines anytime now. Irregular movements of the West Valley fault could possibly affect Metro Manila and its nearby provinces such as Laguna, Bulacan and Cavite. According to the head of Operations of the Provincial Disaster Risk and Reduction Management Council for Cavite, Ronnie Trinidad, in case the 7.2 magnitude along West Valley Fault will hit the Philippines, 90% of Cavite will be devastated as it appears in Figure 2. Carmona, Silang and General Mariano Alvares are the locations that could be greatly affected in terms of infrastructure and building damages once the West Valley Fault moves and the Big One hits Cavite while Bacoor, Dasmariñas, Tagaytay and General Trias will not be directly stroked but will still experience impact. The need for Rapid Assessment of the bridges in Cavite is to have a comprehensive look on the quality of the bridges that have been built, and other bridge widening projects of the Department of Public Works and Highways.