Title:
Prediction and Measurement of Slab Construction Load of Wall-Type Residential Building
Author(s):
Hyeon-Jong Hwang
Publication:
Web Session
Volume:
ws_F24_Hwang.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
11/3/2024
Abstract:
During construction, construction load on slabs can be up to 2 to 3 times their self-weight, which can damage serviceability and structural safety of the slabs with early-age concrete. In the present study, an existing model to predict the load on slabs during construction was modified to properly predict construction load when using aluminum formwork and shores and incorporating reshoring practices. A safety assessment model was devised to predict the failure probability of slabs for cracking, flexure, and shear, by considering measured construction load and construction error of placement of longitudinal reinforcement. To verify the accuracy of the modified model and apply the safety assessment model, loads on shores were measured at a wall-type residential building under construction in South Korea. For 4 stories, the loads on shores and distribution of cover thickness of slabs were measured and the measurement lasted for 58 days. The comparison between the predicted and measured slab construction loads showed that the predicted construction load agreed with the measured construction load. The result of safety assessment of the building showed significantly low failure probability of the slabs.