Six kinds of steel space frame structure installation methods and scope of application

Large-span space frame structure is increasingly widely used in construction projects. It is a new type of steel structure with reasonable force, light total weight, low cost and lively and novel appearance, as well as good stability and safety. The emergence of space frame structure has attracted people’s great attention, and its unique appearance modeling highlights the characteristics of human artistic creativity. Space frame structure meets the requirements of people’s living and living environment, it provides people with more space to cover, so it is adopted by more and more steel structure project construction, especially the large-scale cultural and sports centers mostly adopt space frame structure project, the representative buildings in China are: Shanghai Stadium, Shanghai Swimming Pool, and Liaoning Stadium are all unique and elegant. These structures are novel in appearance, the overall grandeur, and the field is not set up a column, the view is wide, so that people are happy.

The installation method of the space frame structure should be based on the structure of the space frame force appearance, in order to meet the quality, safety, progress and economic effects of the conditions, combined with the local construction technology conditions to determine the space frame structure of the specific installation methods are: high altitude bulk loading method, divided into strips or pieces of the installation method, high altitude skidding method, the whole method of lifting the whole lifting method, the whole method of the whole method of the whole jacking method; regardless of which installation method, in the formal construction of the former should be test splicing and test installation. Trial splicing and trial installation should be carried out to make sure that there is no error, and at the same time, meet the design requirements and then carry out formal construction. What are the installation methods and scope of application of space frame structure.

1.High altitude bulk installation method

Refers to the small unit or bulk (single rod and single node) directly in the design position for the total assembly method, applicable to bolt connection nodes of various types of space frame, especially suitable for lifting difficulties, its construction focus is to determine a reasonable assembly sequence, control the elevation and axis of the position.

2.Strip or block installation method

Refers to the space frame is divided into strips or blocks of units were lifted by lifting equipment to the overhead design position in place shelving, and then into the overall installation method. Applicable to the segmentation of the stiffness and force conditions change less space frame, such as two-way orthogonal orthogonal release quadrangular cone, orthogonal evacuation quadrangular cone and other space frame. This installation method is conducive to improving the quality of the project, and can save most of the assembled bracket.

3.High altitude sliding method

Refers to the slitting of the space frame unit in the pre-set slide single (or one by one) slip to the design position spliced into a whole installation method. It is applicable to the space frame such as positive release quadrangular cone, positive release evacuation quadrangular cone, two-way orthogonal orthogonal release quadrangular cone and so on. The slip unit should be guaranteed to be geometrically invariant system when sliding.

4.The whole lifting method

Refers to the space frame on the ground after the total spell, with lifting equipment will be lifted in place of the construction method. The welding work of the whole frame is carried out on the ground to better ensure the quality of construction, this method is applicable to various types of frames, lifting can be lifted in the high altitude pan or rotate in place.

5.Overall lifting method

It refers to the construction method of installing lifting equipment on the structural columns, and lifting the space frame put together on the ground into position. space frame overall lifting method can be installed in the structure of lifting equipment to lift the space frame, but also in the column of the construction of the slip film at the same time to lift the space frame. Applicable to peripheral support and multi-point support space frame, can rise board machine, hydraulic jack and other small equipment for construction.

6.The whole jacking method

Refers to the design position of the ground will be assembled into a whole frame, and then jack up the frame to the design height of the lifting method. Applicable to less support points of the multi-point support space frame.