Damage Caused by Typhoon Haiyan in the Philippines, Review of Structural Regulations and Practice, and Research Developments in Wind Engineering

Hernandez, Jaime Y.; Aquino, Ronwaldo Emmanuel R.; Pacheco, Benito M.; Cruz, Eric C.

doi:10.5359/jawe.40.270

Cited by 8 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the aftermath of Typhoon Haiyan, Chen et al [29] applied a structural damage rating system to concrete framed structures in Tacloban to profile the extent of damage across the site, concluding that wind was a more significant cause of damage than flood. Hernandez et al [30] carried out a damage survey in Leyte and Samar following Haiyan on a range of buildings including timber, concrete, and steel. Here, it is reported that the majority of non-engineered buildings surveyed suffered total collapse, whilst in engineered buildings, much of the damage was to non-structural components.…”

Section: Introductionmentioning

confidence: 99%

A Risk-Based Approach to Shelter Resilience following Flood and Typhoon Damage in Rural Philippines

Stephenson¹,

Finlayson

Morel³

2018

Geosciences

View full text Add to dashboard Cite

The Philippines is exposed to numerous typhoons every year, each of which poses a potential threat to livelihoods, shelter, and in some cases life. Flooding caused by such events leads to extensive damage to land and buildings, and the impact on rural communities can be severe. The global community is calling for action to address and achieve disaster risk reduction for communities and people exposed to such events. Achieving this requires an understanding of the nature of the risks that flooding and typhoons pose to these communities and their homes. This paper presents the findings from a field based case study assessment of three rural settlements in the Philippines, where typhoons and associated flooding in recent years has caused significant damage to houses and livelihoods, leading to the reconstruction of homes that more often than not reproduce similar structural vulnerabilities as were there before these hazards occurred. This work presents a methodology for risk assessment of such structures profiling the flood and wind hazards and measuring physical vulnerability and the experience of communities affected. The aim of the work is to demonstrate a method for identifying risks in these communities, and seeks to address the challenge faced by practitioners of assisting communities in rebuilding their homes in more resilient ways. The work set out here contributes to the discussion about how best to enable practitioners and communities to achieve the sought for risk reduction and especially highlights the role that geoscience and engineering can have in achieving this ambition.

show abstract

Section: Introductionmentioning

confidence: 99%

A Risk-Based Approach to Shelter Resilience following Flood and Typhoon Damage in Rural Philippines

Stephenson¹,

Finlayson

Morel³

2018

Geosciences

View full text Add to dashboard Cite

show abstract

“…To compensate for such limitations, intensity readings of neighbouring international weather agencies were used. Additionally, estimated intensities evident from impact signs to infrastructure as derived in some studies were referenced 55 – 57 . However, without officially recorded intensity readings of some of the largest typhoons in the Philippines, estimates will always be confined within the proxied or assumed values.…”

Section: Discussionmentioning

confidence: 99%

Deriving expert-driven seismic and wind fragility functions for non-engineered residential typologies in Batanes, Philippines

Hadlos,

Opdyke,

Hadigheh

2023

Sci Rep

View full text Add to dashboard Cite

Natural hazards inflict significant damage to dwellings in the Philippines where housing is often the most valued asset of households. Residential fragility functions estimate structural damage to mitigate risk but these are challenging to derive when empirical and analytical data are lacking, as is common in rural areas. Too often, conventional fragility estimates overlook the characteristics of informally built or non-engineered dwellings common in rural areas. We used a heuristic alternative of deriving fragility functions relying on experts’ judgements to understand the housing performance of non-engineered residential typologies in the Province of Batanes in the Philippines. Drawing on field surveys in the Municipality of Itbayat, we identified and defined seven prominent typologies. Based on the Applied Technology Council’s expert-driven method of deriving fragility functions, 18 experts estimated the damage states of these typologies against the impacts of earthquakes and typhoons which are the two most prominent hazards in the region. Our findings provide first-generation fragility functions for Batanes as a step towards more localised risk assessment in the Philippines. More broadly, these functions can be used for typologies identified beyond Batanes where similar structural characteristics are prevalent.

show abstract

“…The joint damage survey during typhoon Yolanda in 2013, reveals that many of the non-engineered houses were extensively damaged or completely collapsed. Most of the observed damage on engineered buildings occurred on the building envelope that is non-structural elements and seldom checked in design computations [5], [6]. These observed damages reveal the need to update conventional construction details that can no longer resist the demands of increased wind loading.…”

Section: Introductionmentioning

confidence: 99%

“…These observed damages reveal the need to update conventional construction details that can no longer resist the demands of increased wind loading. Hernandez et.al [5] suggested reviewing the Building Codes for Wind Resilient Design. During that time, the latest edition of the NSCP was published in 2010 with wind loading provisions based on the ASCE 7-05 and design wind speed for Eastern Samar is just 250kph.…”

Section: Introductionmentioning

confidence: 99%

Typhoon Guard: Windows Protection System for Typhoon

Dexter M. Toyado

2024

jes

View full text Add to dashboard Cite

Typhoons are hazard that is threatening the Philippines every year. Design and construction of the houses and shelter in Catanduanes changes rapidly incorporating provision against wind speed. The effect of typhoon become the basis in the design of structures and the windows components. The study sought to answer what is the type of house built in Catanduanes, what is typical window system used for houses/building in Catanduanes, what are the protection and provision being implemented to withstand the effect of high winds pressure, and what are the safety practices to counter the effect of high winds of typhoon? Most designs and houses constructed in the late 80’s already introduced these provisions that make them easy to install the windows shutter locally termed as “typhoon guard”. This was also implemented by architects, engineers, and owners as a mandatory inclusion in the building construction and design. The selection criteria for designer and owner include the budget, structural integrity of the window, and aesthetical appearance. Respondents acknowledge that windows must be protected from the force of gusty winds and debris impact and this will also ensure that your entire house or building stays safe and intact. Many respondents agree that it is vital to protect the window from breakage by using materials that can withstand the full force of the wind pressure or employing protection components to keep the window intact and safe. However, most owners of nipa hut and a handful of owners of bungalow houses suffer minor and major damages during super typhoon Rolly, and they have common concerns about their safety and evacuation to safe buildings is the ultimate safety practice to mitigate the risk pose by the typhoon. It is recommended that typical windows systems to be used in homes and buildings must be rigid enough to withstand wind forces. Safety practices to counter the effect of high winds of typhoon includes removal of possible debris and projectile must be practiced. Also, Integrated windows protection design such as windbreaker must be re-integrated into the design of the building and adopt new window design to mitigate typhoon wind forces.

show abstract

Damage Caused by Typhoon Haiyan in the Philippines, Review of Structural Regulations and Practice, and Research Developments in Wind Engineering

Cited by 8 publications

References 0 publications

A Risk-Based Approach to Shelter Resilience following Flood and Typhoon Damage in Rural Philippines

A Risk-Based Approach to Shelter Resilience following Flood and Typhoon Damage in Rural Philippines

Deriving expert-driven seismic and wind fragility functions for non-engineered residential typologies in Batanes, Philippines

Typhoon Guard: Windows Protection System for Typhoon

Contact Info

Product

Resources

About