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Flexural Performance Evaluation of Novel Wide Long-Span Composite Beams Used to Construct Lower Parking Structures

1
Department of Architectural System Engineering, Chungwoon University, Incheon 22100, Korea
2
The Korea Institute of Civil Engineering and Building Technology, Gyeonggi-do 10223, Korea
3
Department of Architectural Engineering, Hanyang University, Ansan 15588, Korea
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(1), 98; https://doi.org/10.3390/su12010098
Received: 10 November 2019 / Revised: 17 December 2019 / Accepted: 18 December 2019 / Published: 21 December 2019
(This article belongs to the Section Sustainable Engineering and Science)
Efficient parking structures are urgently required in Korea. The design of parking structures more than 8 m in height is difficult because both fire and seismic resistance must be considered. Existing designs are uneconomical and conservative. However, the design of parking structures less than 8 m in height is relatively simple and there are few restrictions to the construction. It is essential to optimize the design of parking structures less than 8 m in height. Here, we describe novel wide long-span composite beams that reduce the story height of low parking structures. The flexural capacity of seven of the beams was evaluated; all beams were loaded at two points prior to monotonic bending tests. We also performed finite element analysis (FEA) based on the material properties of the test specimens, and compared the results to those of the structural tests. The flexural strength of the wide composite steel beams increased by approximately 20% as the steel thickness rose by 3 mm, from 6 to 9 mm. The rebar shape (triangular or rectangular) did not affect flexural strength. The flexural strength of beams without rebar was 10% less than that of beams with rebar. The FEA and test results were in good agreement. The section plastic moments were free from global and local instability. View Full-Text
Keywords: wide composite beam; flexural strength; parking structure; long-span; lower-story wide composite beam; flexural strength; parking structure; long-span; lower-story
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MDPI and ACS Style

Choi, Y.-C.; Choi, D.-S.; Park, K.-S.; Lee, K.-S. Flexural Performance Evaluation of Novel Wide Long-Span Composite Beams Used to Construct Lower Parking Structures. Sustainability 2020, 12, 98. https://doi.org/10.3390/su12010098

AMA Style

Choi Y-C, Choi D-S, Park K-S, Lee K-S. Flexural Performance Evaluation of Novel Wide Long-Span Composite Beams Used to Construct Lower Parking Structures. Sustainability. 2020; 12(1):98. https://doi.org/10.3390/su12010098

Chicago/Turabian Style

Choi, Yun-Chul, Doo-Sung Choi, Keum-Sung Park, and Kang-Seok Lee. 2020. "Flexural Performance Evaluation of Novel Wide Long-Span Composite Beams Used to Construct Lower Parking Structures" Sustainability 12, no. 1: 98. https://doi.org/10.3390/su12010098

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