Dapeng Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province, China
In the course of modern architectural development, space structure occupies an important position with its unique charm. It can not only realise the construction of large-span space, but also has good stability and aesthetics. The following article will discuss the installation method of space structure, from overhead bulk installation to overall lifting, analyse its applicable scenes, and at the same time, comprehensively sort out the scope of application to show its key role in the field of construction.
1.Installation Methods of Space Structure
(1) Aerial Bulk Installation Method
Operation Procedure: On the aerial working platform, the construction personnel assemble the rods and nodes of the net frame piece by piece according to the design drawings. Starting from one end of the net frame and gradually advancing to the other end, the lower chord bar is installed first, and then the web and upper chord bar are installed.
Applicable Scenario: It is suitable for bolted net frame structure, especially when the site of construction site is narrow and it is difficult for large lifting equipments to enter, the overhead bulk method can be carried out flexibly. However, the method has a large amount of overhead work, low construction efficiency, high construction safety risk, and high technical level requirements for construction personnel.
(2) Split strip or block installation method
Operation process: according to the structural characteristics of the net frame and on-site construction conditions, the net frame will be divided into a number of strips or blocks. Pre-assembly is carried out on the ground, and then lifting equipment such as cranes and hoists are used to lift it to the design position for splicing. When splicing, attention should be paid to the connection precision between the strips and blocks to ensure the integrity of the whole space structure.
Applicable scene: applicable to medium and small span mesh frame structure. This method can effectively reduce the amount of overhead work and improve the construction efficiency, and at the same time, it has relatively low requirements for the lifting equipment, and it is a more ideal installation method in the case of relatively good site conditions.
(3) the whole lifting method
operation process: on the ground in accordance with the design requirements of the entire net frame structure assembly is completed, and then through the large lifting equipment, such as crawler cranes, tower cranes, etc., will be a one-time lifting of the net frame to the design position. In the process of lifting, it is necessary to reinforce the net frame to prevent deformation in the lifting process.
Applicable scenario: It is suitable for space structures with large span and large weight. Overall lifting method construction speed, can effectively shorten the construction period, but on the lifting equipment lifting capacity and site bearing capacity requirements are very high, need to carry out detailed site investigation and lifting programme design before construction.
2.Application scope of space structure
(1) Stadium
Stadiums usually need large span space to meet the demands of sports events and spectators. Space structure can easily achieve a large span of dozens of metres or even hundreds of metres, and its diverse shapes can create a unique appearance according to the requirements of architectural design, such as the complex shape of the Bird’s Nest is achieved through space structure.
(2) Exhibition hall
Exhibition halls need spacious and column-free display space to facilitate the arrangement of exhibits and audience’s visit. Space structure can provide large space, and can flexibly adjust the internal space layout according to the characteristics of exhibits and display needs, so it is widely used in the construction of exhibition halls.
(3) Industrial factory building
Industrial factory building has high space requirements and needs the structure to have certain load-bearing capacity. Space structure, with light weight, fast construction speed and relatively low cost, can meet the requirements of industrial production on space and structural strength, and is widely used in the construction of various types of industrial plants.
(4) Commercial Complexes
In commercial complexes, space structure is commonly used in large atriums, roofs and other parts. It can not only provide large space to meet the needs of commercial activities, but also enhance the overall image of commercial complexes and attract consumers through unique modelling design.
The installation method and application range of space structure are closely related to the characteristics of the building project, site conditions and other factors. In the actual project, it is necessary to consider various factors comprehensively, choose the most suitable installation method, give full play to the advantages of space structure, and realise the perfect combination of functionality and artistry of the building.
