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The support system consists of two parts: inter-column support and roof support. Its function is to strengthen the overall spatial stiffness and stability of the factory building structure, and mainly transfer the horizontal wind load and the punching force generated between cranes.
cause
The quick dismantling system of the combined roof formwork with woodworker I-beam and square steel tube is a simple quick dismantling support system for the roof formwork developed by Beijing Urban Construction Fifth Construction Engineering Co., Ltd. aiming at the shortcomings of traditional roof formwork support methods.
This technology is based on the effective utilization of formwork support materials commonly used in the market before 2005, and does not need to import and process a large number of special components. The construction technology is simple and practical, easy to popularize, and the wood consumption is small, which conforms to the national environmental protection policy. The key technology "adjustable quick disassembly and jacking" has been declared as a national invention patent. By adjusting the jack-up fine-tuning device, the formwork support is safer and more reasonable.
Characteristics of construction methods
1. The quick-release formwork system for the combined roof of woodworker I-beam and square steel tube adopts an adjustable quick-release jack-up device, which can remove the formwork unaffected by the construction load in advance on the premise of meeting the specification requirements and ensuring the structural safety, so as to maximize the turnover times of materials, improve the utilization rate of materials, greatly reduce the cost of non-physical consumables and improve the market competitiveness of construction enterprises.
2. The adjustable quick-release jack-up in this system solves the problems that the top elevation of other similar equipment in the market is not suitable to be controlled before 2005, and the jack-up and false roof appear after formwork support, which further improves the safety of formwork support and effectively controls the construction quality.
3. This technology effectively utilizes the template supporting materials commonly used in the market before 2005. For the current construction enterprises, they can give up the original uneconomical mode of formwork support without investing a lot of money to buy complete sets of equipment. According to this method, the construction of roof formwork support system is simple and clear, and workers can master this construction method without too much training, which is an important condition for popularizing this method.
4. Square steel pipes and woodworker I-beams are used instead of ordinary square timber as the main keel, which reduces the use of wood and is beneficial to environmental protection. The traditional roof formwork support system mostly uses 50 mm× 100 mm or 100 mm square timber, which is not uniform in size and specifications, poor in bending performance, large in deflection and deformation, large in construction input, few in turnover times, serious in waste and uneconomical.
5. The mechanical properties of woodworking I-beams and square steel pipes are better than those of ordinary square timber. The combination of the two can give full play to the advantages of materials, and the amount of reusable materials is greatly reduced, thus reducing the labor intensity of workers.