Transverse drawing formwork construction process for large span hollow concrete beam

Application Number: 00110331
Application Date: 2000.04.19
Publication Number: 1318678
Publication Date: 2001.10.24
Priority Information:
International: E04B1/20
Applicant(s) Name: Heilongjiang Prov. Land Reclamation Construction Corp.
Inventor(s) Name: Chen Wanli;Fang Rongle
Patent Agency Code: 23100
Patent Agent: li changchun
Abstract A construction process of transverse drawing formwork for making large span concrete hollow beam includes depositing and tamping 3-3.5 m of concrete on the base plate with the concrete level as the base plate thickness, inserting the base formworking for 2.5-3 m and mounting a section of top core formwork. After levelling and calibrating, and then the concrte depositing will be engaged on two sides base formwork and the top plate and then as concrete depositing as the base formwork and the mounted top formwork drawing by the pulling device. The drawing speed of base formwork is normally 3-5 m per hour and the pulling length of each time is about 0.5-1.0m with the interval of a half hour to maintain it until concrete deposition finish.