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Large-span truss hydraulic multi-point synchronous lifting construction method

A construction method and synchronous lifting technology, which is applied in the direction of construction and building construction, can solve the problems of heavy workload of assembly operation platform, low reuse rate of tire frame materials, and low construction efficiency of high-altitude operations, so as to reduce high-altitude operations The effect of reducing the quantity, shortening the construction period and saving labor

Inactive Publication Date: 2014-05-14
YONGSHENG CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the conventional scheme has the following problems: the material used for supporting and splicing tire frames is large, and the reuse rate of tire frame materials is very low; a large crane with a large tonnage is required and the cost is high; high-altitude operations have low construction efficiency and poor safety; high-altitude tailor welding construction The difficulty is high and the quality is not easy to control; the construction time is long and is greatly affected by environmental factors such as strong winds and precipitation, and special measures must be taken to prevent the components from overturning when the components are spliced ​​at high altitude; the construction of the assembly operation platform is heavy and labor-intensive

Method used

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Embodiment 1

[0069] In this embodiment, the upper anchorage, the lifting cylinder and the lower anchorage are connected from top to bottom on the steel strand, wherein the lifting cylinder is connected with the hydraulic pump station, and a sensor detector is installed on the lifting cylinder, and the hydraulic pump station and The sensor detector is connected with the main control computer.

[0070] In the above, the steel strand and the lifting cylinder are the load-bearing parts of the system, which are used to bear the weight of the lifting component. The number of lifting cylinders is configured according to the lifting weight of the component and the size of the load, and the lifting cylinders in each lifting point can be used in parallel.

[0071] In the above, the hydraulic pump station is the power-driven part of the lifting system, and its performance and reliability have the greatest impact on the stable and reliable operation of the entire lifting system; in the hydraulic syste...

Embodiment 2

[0104] 1) Overview of truss lifting:

[0105]The roof is installed after the hoisting of the giant trusses, and the overall lifting installation is adopted; the roof is mainly composed of three trusses, a number of steel beams, and diagonal braces. Due to the heavy weight of the trusses in this division, the total weight is about 190t, and the span of C area is about 27.4m, and the installation height is 30m. Combined with the construction conditions on site, the lower part of the roof of this partition is overhead, and the concrete floor below is suitable for in-situ assembly. Therefore, the truss is installed on site after the floor assembly is completed, using a hydraulic lifter for synchronous lifting and installation;

[0106] 2) On-site layout of the hydraulic lifter:

[0107] The roof is lifted as a whole, using 6 hydraulic lifters, and lifting brackets are set on the top of the giant truss, and the trusses assembled on the floor are synchronously lifted into place by ...

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Abstract

Disclosed is a large-span truss hydraulic multi-point synchronous lifting construction method. The construction method includes the steps of lifting point selection, calculation of load power of each lifting point position, upper and lower anchor point arrangement of a truss, lifting device selection, calculation of overall lifting conditions, lifting trial and steel truss lifting. Deformation caused by truss lifting can be reduced by adopting the flexible steel strand hydraulic synchronous lifting technology, reasonably selecting lifting point positions and utilizing an original structure to serve as upper and lower anchor points for lifting as much as possible; after assembled on the ground, components are integrally lifted to a preset position to be assembled in place; the large-span components can be synchronously integrally lifted at ultra-high altitude, high-altitude operating quantity can be reduced, quality can be improved, workload can be reduced, labor is saved, convenience in mounting and demounting is achieved, stress bearing is unaffected, cost is lowered, funds are saved, duration of work is shortened, and difficulty of safety protection is remarkably reduced.

Description

technical field [0001] The invention relates to a large-span steel structure installation technology in the general building structure of the international patent classification E04B, in particular to a large-span truss hydraulic multi-point synchronous lifting construction method. Background technique [0002] Since the strength of steel is higher than that of reinforced concrete, and its weight is lighter than that of reinforced concrete, it is widely used in high-rise buildings, especially in some large stadium buildings. Steel structures are mostly used in some large venues with a construction area of ​​over 10,000 square meters. However, the steel structure technology is complicated, the construction is difficult, and the construction cost is high. Moreover, the construction quality, construction speed, and construction cost cannot meet the requirements. The installation of the two longitudinal main trusses in this type of giant building is the key process of constructi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/342
Inventor 殷波缪建国金鹭卢江华赵建雷于佳
Owner YONGSHENG CONSTR GRP
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