Mechanical Properties of Wall-Attached Support Systems in Cloud-Based Prefabricated Concrete Shear Wall Construction Factories

The cloud-based construction factory is an industrialized and intelligent formwork platform system designed for super high-rise building construction， also referred to as a building construction machine platform. However， research on the wall-attached support systems of such platforms， specifically for prefabricated shear wall structures， remains relatively limited in China. To address this gap， this study conducted a full-scale （1∶1） test to simulate the loading conditions of the wall-attached support system in a cloud-based prefabricated shear wall construction factory. The test results were compared with refined finite element analysis to investigate the development of shear cracks， reinforcement strain， and stress levels in the wall-attached supports under a vertical load of 1400 kN. The results demonstrated that the system exhibited adequate bearing capacity under this vertical load， with a maximum crack width of 0.27 mm. Under normal service conditions with crack control measures implemented， the crack width remained below 0.2 mm at a vertical load of 1100 kN. Therefore， it was concluded that the design vertical load for the wall-attached support system should be set at 1000 kN. These findings have been successfully applied to the prefabricated shear wall project of China State Construction’s Yinghua Yuefu Development.