Journal of Asian Architecture and Building Engineering
Online ISSN : 1347-2852
Print ISSN : 1346-7581
Building Structures and Materials
Comparison of High-Strength Steel Pipe and H-Shaped Steel in the Strut of a Braced Wall System
Sangyong KimSeoung-Wook WhangYoung-Do LeeYoonseok ShinGwang-Hee Kim
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2017 Volume 16 Issue 1 Pages 179-184

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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.

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© 2017 Architectural Institute of Japan
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