1. Main technical content Computer controlled overall lifting and lifting technology is an advanced steel structure and large equipment installation technology. It integrates mechanical, hydraulic, computer control, sensor monitoring and other technologies to solve the traditional lifting process and large lifting machinery lifting. Problems that cannot be overcome in terms of height, lifting weight, structural surface connection, and work site. The construction technology is safe and reliable, the technology is mature, the technology is advanced, and the economic benefit is remarkable. The technology adopts the principle of “flexible steel strand load bearing, hydraulic cylinder cluster and computer control synchronous liftingâ€. The computer is used to precisely control the synchronism of each point during lifting or jacking construction. 2. Technical indicators The determination of the lifting or jacking scheme must take into account both the load-bearing structure (permanent or temporary) and the strength, stiffness and stability of the steel structure being upgraded or the equipment itself. It is necessary to check the overall mechanical performance of the structure under construction conditions, and calculate the force of each and lifting points, equipped with a jack. For the construction support or substructure and foundation foundation, the bearing capacity and overall stability should be checked to ensure sufficient safety in the most unfavorable conditions. The unsynchronized value of each action point during construction shall be reasonably selected by calculation. The principle of selection of lifting mode is to strive to reduce the height of the load-bearing structure and ensure its stability, and secondly to ensure the stability and safety of the upgraded steel structure or equipment during lifting. The basic principle for determining the number and location of lifting points is: firstly ensure the stability of the upgraded steel structure or equipment during the lifting process; under the premise of ensuring safety and quality, minimize the number of lifting points; improve the carrying capacity of the equipment itself to meet the design requirements . The principle of lifting equipment selection is: it can meet the requirements of lifting, compact, sturdy and durable, easy to maintain, meet engineering needs (such as travel, speed, safety protection, etc.). 3. The main technical features of the slip method The  slip method has broad applicability. In addition to the one-way truss, the two-way truss or grid with less structural rigidity can be installed by sliding method by increasing the support point (reducing the span), increasing the width of the assembly platform, and increasing the number of trusses assembled on the platform at the same time. The slidable propulsion device can be computer controlled synchronous hydraulic crawler. The equipment has high degree of automation, convenient and flexible operation, good safety, high reliability, wide use and strong versatility. 4. The main technical measures of the slip method 1) Preparation of construction plan The construction plan is prepared to guide the construction, including: slip unit division, assembly platform and slide erection, high-altitude assembly, traction system, strip slip or cumulative slip, drop-off position, construction monitoring, emergency plan, etc. 2) High-altitude assembly platform erection and truss assembly. 3) Set the slide track. 4) Install the synchronous slip system. 5) Stress and strain monitoring: Ensure that the construction is carried out under controlled conditions. 5. Scope of application (1) Large-span roofs and steel structures such as stadiums, theaters, hangars, steel flyovers (corridors), etc., with ground assembly conditions and good surrounding support conditions, can be used for overall jacking and lifting technology. (2) The overall improvement of ultra-high components such as TV tower steel truss antennas and power station boilers. (3) The overall improvement of large equipment such as main girders and boilers of large gantry cranes. 6. Typical engineering that has been applied The overall structure of the main library steel structure (10800t) of the National Library, the overall structure of the A380 aircraft maintenance warehouse roof steel structure (10500t) of the Capital International Airport, the Shenzhen Civic Center Large Roof, Guangzhou New TV Tower, Dongfang Boiler Factory 130mm × 4200mm CNC hydraulic coil Machine installation, offshore oil engineering (Qingdao) Co., Ltd. 800t × 185m gantry crane (4750t) overall upgrade. PVDF PE Aluminum Honeycomb Panel Pvdf Pe Aluminum Honeycomb Panel,Aluminum Sandwich Panel,Honeycomb Structural Panels,Aluminium Honeycomb Composite Panel Foshan Nanhai Lianxing Deli Decoration Materials Co.,Ltd , https://www.fstuodeli.com
Large steel structure sliding installation technology