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Local News

First ‘Earthquake-Resistant’ Bridge, Itatayo ng Gobyerno

Nasa kalagitanaan na ng termino ang Duterte Administration pero tuloy-tuloy pa rin ang pagratsada ng mga proyekto ng pamahalaan.

Isa sa malugod na ibinahagi ng Department of Public Works and Highways (DPWH) ay ang pagpapalit ng Anao-aon Bridge sa Surigao Del Norte na nasira noong 2017 6.7 magnitude earthquake.

Ayon sa ahensiya, ang ipapalit na bagong tulay ay magsisilbi bilang kauna-unahang “earthquake-resistant” bridge sa Pilipinas. Gagamitan daw ito ng modernong diseniyo. Sinimulan daw itong itayo noong Agosto 2018 at ngayo’y nasa 85% nang tapos. Aabot sa P179,919,988 ang nagastos para sa tulay.

Ang tulay ay ginamitan din daw ng corrugated steel plates (CSP) bilang pangunahing materyales. Sabi ng DPWH, ang CSP ay gagamitin na sa karamihan sa mga proyekto ng ahensiya. Isa daw sa katangian ng CSP ay ang pagiging matibay at madaling i-install.

“CSP is a lightweight construction material that is economical as it cuts off the construction time because it is easier to install. It is also durable to corrosion as the material is coated through Hot-Dip Process to extend its life service…. Additionally, concrete bridges are only expected to last 40 to 50 years; however, bridges built with CSP have a lifespan of 70 years. In case of deterioration, the affected portion can be effortlessly replaced with new CSP material to restore the integrity of the structure… On top of that, the flexibility and the lightweight characteristic of steel make it earthquake-resistant compared to concrete structures… In contrast, the arch bridge design is fresh to the visual satisfaction. In terms of weight distribution, it has no weaker portion as the weight in all of its part is evenly distributed, employing the design of rounded structure to push the weight outwards toward each end…
Seemingly a breakthrough in the public works engineering in this country, with the introduction of CSP materials, the cost of building arch bridges has become more economical,”
sabi ng DPWH

Source: Top Gear | Flying Ketchup

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