A study to determine the probability of structural failure on selected large billboards in Madaluyong City under extreme wind speeds

Date of Publication

2013

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Civil Engineering with Specialization in Structural Engineering

College

Gokongwei College of Engineering

Department/Unit

Civil Engineering

Thesis Adviser

Lessandro Estelito O. Garciano

Defense Panel Chair

Alden Paul D. Balili

Defense Panel Member

Bernardo A. Lejano
Andres Winston C. Oreta

Abstract/Summary

Billboards are vertical structures which are exposed to wind forces and are designed to withstand these forces even under extreme conditions. Unfortunately, not all billboards constructed are designed to resist extreme wind speeds during typhoons. It has also been observed globally that the typhoons or hurricanes are increasing in magnitude each year and therefore pose a threat to the structural reliability of billboards during extreme events. In view of these, the authors studied the probability of failure of billboards in Mandaluyong city under extreme wind speeds. To attain this objective, the authors gathered information on the strength and resistances of the selected billboards by acquiring the structural plans from the Office of the Building Official of Mandaluyong City. The extreme wind load is obtained from NSCP 2010 provisions. However since extreme wind speeds are stochastic in nature, the basic wind speed which is an input the NSCP 2010 wind load is modeled using the generalized extreme value (GEV) distribution. The parameters of the GEV are determined using annual wind speed maxima acquired from PAG-ASA four (4) wind stations namely: Port Area, Sangley Point, NAIA, and Science Garden. Having obtained the resistance and the loads on the billboards the probability of failure can then be determined. In the study, it was determined that the probabilities of failure range from 0% to more than 81% given the assumptions and conditions in the study.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU18718

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

xi, 264 leaves : illustrations (some colored) ; 28 cm.

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