The research demonstrates the bending behavior and optimization of the connection joints of disc-buckle type formwork supports to improve structural stability.
Scaffold collapses represent one of the significant hazards within construction sites globally, leading to injuries and financial losses. New research sheds light on the mechanical performance of disc-buckle formwork joints, aiming to improve their structural integrity.
The study, conducted by Dong, Liao, Liu, et al., systematically investigates the bending behavior of these pivotal connection joints, documenting their semi-rigid nature.
To improve safety, the research reveals insights about the optimally determined dimensions for these joints. The thickness of the disk-plate, integral to joint performance, has been established as 10 mm, with the wedge recommended at 7 mm thickness for ideal durability.
Central to the experiments was the examination of several influence parameters, including the depth of wedge insertion and the yield strength of materials used. The researchers found, “The connection joints of the disc-buckle type formwork are typical semi-rigid connections.” They also noted, “The thickness of the disk-plate plays a decisive role in the joint bending capacity.”
For practical purposes, it was identified through extensive testing and simulation modeling—including finite element analysis—that the effective yield strength of the wedge should lie between 450 and 500 MPa, ensuring adequate performance under stress.
This combination of experimental validation and computer simulation allowed for reliable recommendations, addressing notable industry standards to increase operational safety during formwork support erection. The study concludes recommending stricter adherence to these optimally identified parameters, highlighting their significance, especially marginalized constructions historically deemed risky.
Through educational outreach and incorporation of these findings, the study aims to combat the alarming frequency of scaffold failures, advancing overall coexistence of economic efficiency and safety standards within the construction industry.