Comparison of High-Strength Steel Pipe and H-Shaped Steel in the Strut of a Braced Wall System. Issue 1 (1st January 2017)

• Record Type: Journal Article
• Authors: Kim, Sangyong; Whang, Seoung-Wook; Lee, Young-Do; Shin, Yoonseok; Kim, Gwang-Hee
• Is Part Of: Journal of Asian architecture and building engineering. Volume 16:Issue 1(2017)
• Page Start: 179
• Page End: 184
• Publication Date: 2017-01-01
• Subjects: deep excavation -- braced wall system -- high strength steel pipe strut -- H-shaped steel strut; Structural engineering -- East Asia -- Periodicals; Architectural design -- East Asia -- Periodicals; Architectural design; Structural engineering; Periodicals; Electronic journals; 720.95
• DOI: 10.3130/jaabe.16.179
• Languages: English
• ISSNs: 1346-7581

Abstract

Abstract : Excavation work accounts for a high percentage of the total building construction cost. The most widely used method for excavation work in an urban area is a braced wall system with struts or rakers. H-shaped steel, which is the most commonly used component for struts in braced wall systems, has disadvantages such as cost-ineffectiveness and increased work interference associated with narrow strut spacing. Therefore, the use of high-strength steel pipe struts in braced wall systems can be an effective alternative to widening the strut spacing. In this study, the construction costs of a braced wall system using H-shaped steel and a braced wall system made with high strength steel pipe were compared by analyzing the required amounts of materials and the construction costs for four practical cases. All analyzed cases considered a change from H-shaped steel to high strength steel pipe in a design change during the construction stage. The results of this study show that the required amount of materials and the construction costs of a braced wall system with high strength steel pipe were lower than those of a braced wall system with H-shaped steel. Consequently, this study suggests that a high strength steel pipe strut is a more economical alternative than an H-shaped steel strut in braced wall systems for deep excavation work.