FLEXURAL BEHAVIOR OF PROPOSED STEEL-TIMBER-CONCRETE COMPOSITE FLOOR SYSTEMS FOR MID-TO-HIGH-RISE BUILDINGS

  • Chae Yeon Kim
  • , Min Su Kang
  • , Jong Soo Choi
  • , Jin Won Shin
  • , Kyong Soo Yom
  • , Sung Mo Choi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This study experimentally evaluates the flexural performance of an STC (Steel-Timber-Concrete) slab composed of steel (Z-section), concrete, and CLT, and aims to derive cross-sectional configurations and allowable spans applicable to mid-to-high-rise timber buildings. A total of six specimens were fabricated and tested under a two-point loading setup, comparing flexural stiffness and strength before and after concrete hardening. The results show improved flexural performance with increasing Z-section thickness and rebar diameter, and that STC slabs could achieve an allowable span of up to 6.25 m after concrete hardening. In particular, the STCJZ slab, with its thermal storage effect of concrete and joist reinforcement, showed favorable fire resistance characteristics. This study experimentally demonstrates the practical feasibility of STC slabs as a structural alternative for high-rise timber construction.

Original languageEnglish
Title of host publicationProceedings from the 14th World Conference on Timber Engineering
Subtitle of host publicationAdvancing Timber for the Future Built Environment, WCTE 2025
EditorsKelly Rischmiller, Mahmoud Abu Saleem, Chloe Downey, Joe Gattas, Duncan Hossy, Lisa Ottenhaus, Wenxuan Wu, Yuhao Zhang, Zidi Yan
PublisherWorld Conference on Timber Engineering (WCTE)
Pages1581-1588
Number of pages8
ISBN (Electronic)9798331320898
DOIs
StatePublished - 2025
Event14th World Conference on Timber Engineering, WCTE 2025 - Brisbane, Australia
Duration: 22 Jun 202526 Jun 2025

Publication series

NameProceedings from the 14th World Conference on Timber Engineering: Advancing Timber for the Future Built Environment, WCTE 2025

Conference

Conference14th World Conference on Timber Engineering, WCTE 2025
Country/TerritoryAustralia
CityBrisbane
Period22/06/2526/06/25

Keywords

  • Composite floors
  • Flexural behavior
  • Mid-to-high-rise timber buildings
  • Steel-timber-concrete

Fingerprint

Dive into the research topics of 'FLEXURAL BEHAVIOR OF PROPOSED STEEL-TIMBER-CONCRETE COMPOSITE FLOOR SYSTEMS FOR MID-TO-HIGH-RISE BUILDINGS'. Together they form a unique fingerprint.

Cite this