Tsunami-Resilient Building Design Considerations for Coastal Communities of Washington, Oregon, and California

Chock, Gary; Carden, Lyle P.; Robertson, Ian; Wei, Yong; Wilson, R. I.; Hooper, John

doi:10.1061/(asce)st.1943-541x.0002068

Cited by 10 publications

(6 citation statements)

References 6 publications

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“…Since ASCE 7-16 guideline is linked with IBC (Chock et al , 2018), ASCE 7–16 guidelines is considered as the leading benchmark of this study to form the major headings of local guideline, which is to be developed by amalgamating all the existing guidelines. Scope of the ASCE Tsunami Design Provisions as per Chapter 6 in the 2016 edition of the ASCE 7 guideline includes “Tsunami loads and effects” with 15 major aspects as Table 1.…”

Section: Discussionmentioning

confidence: 99%

Tsunami-resilient building guidelines for Sri Lankan coastal belt: a critical review and consolidation based on significant institutional perceptions

Gunarathna

Bandara

Dissanayake

et al. 2023

IJDRBE

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Purpose The lessons learned from the 2004 tsunami phenomenon fueled the government and other local authorities to strengthen the legitimate background to mitigate such devastation in future events. This study aims to propose a standardized tsunami-resilient construction guideline for Sri Lanka by integrating existing local and international standards. Design/methodology/approach A comprehensive literature survey was carried out to undertake the study, with a wide-ranging content and thematic analysis of existing tsunami-resilient construction aspects in Sri Lanka. Integrating all existing guidelines with international standards, finally, a consolidated guideline with significant tsunami-resilient building aspects was proposed for stakeholders involved with the resilient built environment in tsunami-prone areas, particularly during the building construction in the coastal belt. Findings The existing tsunami-resilient guidelines in Sri Lanka follow similar aspects but in different dimensions. Compared to the international standards, few significant aspects create a gap in local guidelines. Thus, the findings demonstrated that the existing local guidelines must be modified and strengthened by mainstreaming into international practices. Research limitations/implications Existing guidelines are more concerned with structural aspects. Nevertheless, proper integration of local and international guidelines would be more favorable to minimizing existing local guidelines’ gaps. Further, a standardized tsunami-resilient building guideline would be a referring document for all stakeholders in tsunami-resilient constructions. Practical implications By aligning local guidelines with international standards, the reliability of the guidelines will be increased and direct the built environment to quality disaster-resilient constructions. Social implications Through a standardized guideline, the community can rely on tsunami-resilient construction in coastal cities. Originality/value The consolidated guideline further contains the essentials of city resilience in tsunamis and would be an excellent reference for relevant stakeholders than aligning with several guidelines.

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Section: Discussionmentioning

confidence: 99%

Tsunami-resilient building guidelines for Sri Lankan coastal belt: a critical review and consolidation based on significant institutional perceptions

Gunarathna

Bandara

Dissanayake

et al. 2023

IJDRBE

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“…However, local jurisdictions are strongly encouraged to require tsunami design for taller TRC II buildings in order to provide secondary refuge-of-last-resort and improve community resilience. Chock et al (2018) established suitable height thresholds for communities throughout the US Pacific coast, satisfying both the prescriptive acceptance criteria and a recommended height at least 3.66 m greater than the inundation depth. For the case-study building, the upper three stories would be above ℎ max , hence they could function as a refuge according to the proposal of Chock et al (2018).…”

Section: Prototype Buildingmentioning

confidence: 99%

“…Chock et al (2018) established suitable height thresholds for communities throughout the US Pacific coast, satisfying both the prescriptive acceptance criteria and a recommended height at least 3.66 m greater than the inundation depth. For the case-study building, the upper three stories would be above ℎ max , hence they could function as a refuge according to the proposal of Chock et al (2018).…”

Section: Prototype Buildingmentioning

confidence: 99%

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A Procedure for Performing Nonlinear Pushover Analysis for Tsunami Loading to ASCE 7

et al. 2022

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The new ASCE 7-16 Chapter 6 offers a comprehensive and practical methodology for the design of structures for tsunami loads and effects. While it provides prescriptive tsunami loading and design requirements, Chapter 6 also allows for the use of performance-based nonlinear analysis tools.However, the specifics of load application protocol, and system and component evaluation for such a nonlinear approach are not provided. This paper presents a procedure for performing nonlinear static pushover analysis for tsunami loading within the framework of the ASCE 7-16 Standard. Through this approach, the user can both estimate the effective systemic lateral-resisting capacity of a building and the local component demand. This enables the identification of deficiencies in structural elements with respect to the ASCE 7-16 standard acceptance criteria. To demonstrate the procedure, a prototypical reinforced concrete multi-story building exposed to high tsunami hazard in the US Northwest Pacific coast is assessed. This is a building with sufficient height to provide last-resort refuge for people having insufficient time to evacuate outside the inundation zone. The results of the nonlinear static pushover analyses show that the structural system has sufficient lateral strength to resist ASCE 7-16 prescribed tsunami loads, but fails the checks for component-based loading, with the exterior ground story columns observed to fail in flexure and shear. The example demonstrates that use of the tsunami nonlinear static 2 analysis procedure allows the identification of structural deficiencies such that a targeted strengthening of the building can be conducted, (i.e. flexural and shear strengthening of the seaward and inland columns, for the case study building presented), leading to significantly reduced costs.

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“…The 2016 edition of ASCE 7 (ASCE 2016), Chapter 6 on tsunami loads and effects, became the first national, consensusbased standard for tsunami resilience for application in Alaska, Washington, Oregon, California, and Hawaii and has been adopted by the 2018 International Building Code (ICC 2012). Chock et al (2018) detail the process of development and discuss applications to the design of tsunami-resilient buildings within a community including the use of buildings for vertical evacuation.…”

mentioning

confidence: 99%

Structural Design and Robustness for Community Resilience to Natural Hazards

2020

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Tsunami-Resilient Building Design Considerations for Coastal Communities of Washington, Oregon, and California

Cited by 10 publications

References 6 publications

Tsunami-resilient building guidelines for Sri Lankan coastal belt: a critical review and consolidation based on significant institutional perceptions

Tsunami-resilient building guidelines for Sri Lankan coastal belt: a critical review and consolidation based on significant institutional perceptions

A Procedure for Performing Nonlinear Pushover Analysis for Tsunami Loading to ASCE 7

Structural Design and Robustness for Community Resilience to Natural Hazards

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