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Showing posts from April, 2022

Structural requirements for steel structure space frame joints

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In the steel structure space frame , the nodes play the role of connecting the intersecting members and transferring the roof load and crane load. The space frame  also belongs to the space bar system, and there are at least 6 bars and as many as 13 bars that converge on a node. This adds a certain degree of difficulty to node design. The space frame  has a large number of nodes, and the amount of steel used for the nodes accounts for 1/5~1/4 of the steel used for the entire space frame  members. Reasonable design of nodes has a direct relationship with the safety of the space frame , production and installation, project progress, steel consumption indicators, and the cost of steel structure space frame  construction. Node design is one of the important links in space frame  design . Design space frame structure consultation: https://www.safsteelstructure.com/ The node structure of the steel structure space frame  should meet the following 4 points: (1) The...

Analysis of Construction Technology of Spherical Space Frame

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  1. Before the spherical space frame is assembled, the positioning axis, elevation, levelness and anchoring position of the support of the space frame structure should be accurately measured, and the theodolite, level and steel ruler should be used for actual measurement. 2. The type, specification, model, placement and orientation of the support pad must meet the design requirements. Because the internal force of the member and the deformation of the node are calculated according to the support node under certain constraints, and the change of the type, specification, placement and orientation of the support pad will have a direct impact on the constraints of the space frame nodes.  For example, the position and orientation of the support points are distributed with peripheral support, point support, combination of peripheral support and point support, opening on one side of three-side support, opening on both sides of support on both sides, etc. If the position and orienta...

Reasons of Corrosion of Large Span space frame Structures

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The aging of the space frame  structure paint is an important reason for the corrosion of the space frame  structure. No matter what kind of material basically has aging characteristics, and anti-corrosion coatings will also have aging problems. It is because of the aging problem of this kind of paint that the anti-corrosion coating of the steel structure fails, which in turn causes the space frame  structure to corrode and rust and affect the service life. It is also because of the natural environment surrounding the space frame  structure. If the air around the space frame  structure is relatively humid, it will definitely cause the space frame  structure to gradually rust under the erosion of water and air. The content of corrosive and harmful components such as carbides, nitrides and sulfides in the polluted atmosphere will also affect the service life of the space frame  structure. For the maintenance of the space frame  structure, it is n...