Authors : Won Mo Gal, Cho Seong Yul and Ki Sang Son
Abstract: This study set out to find a practical method to secure the stability of a supporting structure in cases of tower crane or large formwork in which the use of a reinforcing anchor body is inevitable. The parameters of reinforced concrete reinforcement were determined as the diameter, type of anchor and embedded depth. The concrete compressive strengths used in this experiment were 21, 24 and 27 MPa which are generally used on construction sites. Reinforcing steel bars of D13, D16 and D22 diameters were also used and the strengths and failure modes were investigated in these different conditions. The following conclusions were drawn from the experimental results. The experimental results for the D22 reinforcing bar showed that anchors can be designed and fabricated in a balanced manner when the ratio of the reinforcing bars to the cross-sectional area of the concrete is maintained above 0.95%. The increase in the cross-sectional area of reinforced concrete as compared with the surface area of reinforced concrete is about 2 or 3 times. This suggests that in order to increase the tensile strength of reinforcing bars, a method to optimize the landfill depth rather than the diameter of the reinforcing steel bar can easily be applied on construction sites.
Won Mo Gal, Cho Seong Yul and Ki Sang Son, 2018. Measuring the Resistance Capacity of an Anchoring Concrete Weight Body for Tower Crane. Journal of Engineering and Applied Sciences, 13: 5835-5837.