Experimental Study on Load-Bearing Capacities of Frame-Type Scaffolds Used in Precast Construction

Jui Lin Peng, Pao Li Wang, Siu Lai Chan, Po Kai Wu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

In precast construction, because the precast beams are broader and the frame-type steel scaffolds need to bear more weight, such as that of the precast slabs and precast beams, the dimensions and load-bearing capacities of the frame-type steel scaffolds are different from those of traditional door-type steel scaffolds. The results of this study show that based on the load-bearing capacities of the five different combined setups of frame-type steel scaffolds used in this study, the horizontal members of the square-type and rectangle-type steel scaffolds are able to enhance the load-bearing capacities of the combined setups of the frame-type steel scaffolds. Therefore, when adopting combined setups of frame-type steel scaffolds, it is advisable to refrain from using only door-type steel scaffolds on construction sites. The ability of jack bases to enhance the load-bearing capacities of frame-type steel scaffolds is not significant. Under the condition of an eccentric load located at one-third of both the x-axis and y-axis, the load-bearing capacity of the frame-type steel scaffolds reduces to 60% of that when no eccentric load is involved. When a lateral force is applied, the critical load of frame-type steel scaffolds decreases with increasing lateral forces.

Original languageEnglish
Pages (from-to)400-414
Number of pages15
JournalInternational Journal of Steel Structures
Volume20
Issue number2
DOIs
Publication statusPublished - 1 Apr 2020

Keywords

  • Buckling
  • Direct analysis
  • Scaffolding
  • Second-order analysis
  • Slender structures
  • Stability

ASJC Scopus subject areas

  • Civil and Structural Engineering

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