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How to improve the overall structure of the grid?
1, the overall lifting of the frame can be installed on the structure of the lifting equipment to lift the frame, also can be carried out in the construction of column sliding mode at the same time to lift the frame, at this time the frame can be used as a lifting platform.
2. In order to improve the load capacity of the equipment, the rated load capacity shall be multiplied by the reduction factor. Electric screw plate lifter can be 0.7-0.8; Other equipment is determined by testing.
Three, the network frame lifting should be guaranteed to achieve synchronization. The allowable lift difference between two adjacent lifting points and the two highest and lowest lifting points shall be determined by checking calculation. The allowable lift difference between two adjacent lifting points: when the lift trigger is used, it should be 1/400 of the distance between the adjacent points, and should not be greater than 15mm; When a piercing hydraulic jack is used, it shall be 1/250 of the adjacent distance and shall not be greater than 25mm. The allowable lift difference between the highest point and the lowest point shall be 35mm when a plate lifter is used and 50mm when a piercing hydraulic jack is used.
4. The resultant point of lifting equipment should be aligned with the lifting point, and the allowable deviation value should be 10mm.
Five, the overall lifting method of the lower support column should be carried out stability check.
Shenyang jianwei steel structure engineering co., ltd. is a comprehensive large-scale construction steel structure enterprise, which includes the general contracting of construction projects; Professional steel structure design, manufacturing, installation and corresponding decoration decoration, with the ministry of construction issued by the national steel structure installation of grade a qualification, steel structure special design grade a qualification and China steel structure association issued by the production of grade a qualification. The company was founded in 1999, the registered capital of the company is 15 million yuan. The total assets of the company are RMB 280 million and the annual output value is RMB 300 million. The company is a sino-foreign joint venture, and its shareholders are shenyang jianwei industrial co., LTD and China (Hong Kong) construction steel structure engineering co., LTD. Company now employees nearly 780 people, of which nearly 140 people, managers and senior management personnel above 46 people, master degree or above in 4 people, 3 senior accountants, senior engineer 4 people, professor engineer 1 person, 1 doctoral student, 1st class registered structural division 2, 1 1st class registered architect, registered cost division 1, 17 associate constructor, college degree or above 100%. Especially in the field has 3 d3s STeel structure design, X - STeel, and other international well-known software, is in the domestic first-class level in the figure, design, technical support and other American VP company technical support to make the company in terms of light STeel in the STeel quantity and optimization design in the international leading position, at the same time the company has nearly 30 project managers at all levels, multiple projects get the national award.