A simplified method to select effective seismic retrofit for steel buildings based on damage cost (2018)
View/ Open
Type of Content
Conference Contributions - PublishedCollections
Abstract
Recent earthquakes have highlighted the vulnerability of nonstructural components. Nonstructural damage causes serious injuries and economic loss1) but current seismic design methodologies consider nonstructural damages indirectly by checking drift limits. Note that the drift capacity of nonstructural components varies depending on the type of component. In order to reduce loss by earthquakes, seismic retrofit is an effective option. Currently, retrofit systems are designed to increase a building’s capacity to avoid collapse, but retrofit can also be effective in reducing monetary loss due to non-structural damage if designed appropriately. In terms of monetary loss, seismic retrofit can be considered effective when reduction in repair costs (adjusted for inflation) becomes larger than the initial and maintenance costs. The process of estimating losses in future earthquakes fairly complicated because it requires a series of hazard, structural, damage and loss analyses. For retrofit projects, where cost and time in planning has severer limitations than for new building projects, it is impractical for structural engineers to conduct detailed loss estimation. Moreover, particularly in Japan, hazard analysis is commonly not considered well in practice. It is therefore difficult for structural engineers to practically undertake detailed loss estimation in addition to structural design. Considering this situation, this paper aims to develop a simplified method to roughly estimate monetary loss due to future earthquakes and to demonstrate the use of the proposed method for selecting cost-effective seismic retrofitting systems.
Citation
Takeda T, Asisi FA, Kurata M, Sullivan T, MacRae G (2018). A simplified method to select effective seismic retrofit for steel buildings based on damage cost. Architectural Institute of Japan Kinki branch meeting. Proceedings of Architectural Institute of Japan Kinki branch meeting.This citation is automatically generated and may be unreliable. Use as a guide only.
Keywords
Performance based design; Economic loss; simplified method; seismic rehabilitationANZSRC Fields of Research
40 - Engineering::4005 - Civil engineering::400506 - Earthquake engineeringRelated items
Showing items related by title, author, creator and subject.
-
Cost-Effective Consideration Of Non-Structural Elements: Lessons From The Canterbury Earthquakes
Sullivan T; Asisi FA; MacRae GA; Kurata M; Takeda T (2018)By closely examining the performance of a 22-storey steel framed building in Christchurch subject to various earthquakes over the past seven years, it is shown that a number of lessons can be learnt regarding the cost-effective ... -
Base Isolation and Damage-Resistant Technologies for Improved Seismic Performance of Buildings
Buchanan, A.H.; Bull, D.; Dhakal, Rajesh; MacRae, G.; Palermo, A.; Pampanin, Stefano (University of Canterbury. Civil and Natural Resources Engineering, 2011)Modern methods of seismic design (since the 1970s) allow structural engineers to design new buildings with the aim of predictable and ductile behaviour in severe earthquakes, in order to prevent collapse and loss of life. ... -
Investigating the impact of design criteria on the expected seismic losses of an office building
John L; Williamson M; SULLIVAN, TIMOTHY (2021)Low Damage Seismic Design (LDSD) guidance material being developed by Engineering NZ is considering a design drift limit for multi-storey buildings of 0.5% at a new damage control limit state (DCLS). The impact of this ...