Factors Affecting Vulnerability of Ready-Made Garment Factory Buildings in Bangladesh: An Assessment Under Vertical and Earthquake Loads

Tanmay Das,Mehedi Ahmed Ansary,Uttama Barua

doi:10.1007/s13753-018-0177-6

Abstract

The importance of workplace safety in the ready-made garment (RMG) industry in Bangladesh came to the forefront after a series of disastrous events in recent years. In order to reduce the loss of lives and to ensure sustainable development, an in-depth understanding of the determining factors governing structural vulnerability in the RMG industry is needed. This research explores the key factors influencing the vulnerability of factory buildings under both vertical and earthquake loads. For this purpose, an ordered probit model was applied to 3746 RMG factory buildings to determine the key factors that influenced their vertical load vulnerability. A smaller subset of the original sample, 478 buildings, was examined by the same modeling method in greater detail to assess the key factors that influenced their earthquake load vulnerability. This research reveals that column capacity, structural system, and construction materials are the most influential factors for both types of vulnerabilities. Among other factors, soil liquefaction and irregular internal frame affect earthquake load vulnerability significantly. These findings are expected to enable factory owners and designers to better weigh the appropriate vulnerability factors in order to make informed decision that increase workplace safety. The research findings will also help the designated authorities to conduct successful inspections of factory buildings and take actions that reduce vulnerability to both vertical and earthquake loads.

Highlights

Over the last three decades, the ready-made garment (RMG) industry has enjoyed significant growth in Bangladesh (Wadud et al 2014)
Two datasets were collected: individual vertical load vulnerability assessment reports of all the 3746 factory buildings assessed by DIFE (2016) and individual earthquake load vulnerability assessment reports of all the 478 factory buildings assessed by Bangladesh University of Engineering and Technology (BUET)
After collection of individual reports, we prepared two compiled datasets separately for vertical load vulnerability and earthquake load vulnerability based on factors selected for this research, which are discussed

Summary

Introduction

Over the last three decades, the ready-made garment (RMG) industry has enjoyed significant growth in Bangladesh (Wadud et al 2014). It has become the single most important sector contributing to the country’s export earnings (Ansary and Barua 2015). The RMG industry emerged as an important contributor in employment generation, poverty alleviation, and women’s empowerment (Rahman and Hossain 2010). Despite many efforts made to address safety issues, assuring the safety of workers remains a challenge. This in turn adversely affects worker livelihood, dependent families, and those living in the vicinity of the RMG industry

Methods

Results

Conclusion