SAFS steel structure space frame introduces spherical space frame assembly in five steps.Space frame is a new type of large-span building roof structure.
Before the spherical space frame is assembled, solve the steel structure space frame support positioning axis, design elevation, flatness and support steel anchorage position to carry out accurate measurement of the construction line, and use a spirit level and a steel tape to carry out evaluation.
The type, specification, model, location and orientation of the supporting protective layer pads must comply with the design requirements. Because the internal work of the component and the deformation of the connection point are all calculated according to the connection point of the support under certain constraints, and the type, specification, placement and orientation of the pad of the support protection layer are all changes in the connection point of the spherical space frame. Binding standards cause immediate harm.
For example, the positions and orientations of the support points include nearby supports, point supports, close combination of nearby supports and point supports, three-sided supports with openings on one side, and two-sided supports with openings on both sides, etc. If the location and orientation of the support points change, the distribution of the support points will inevitably be changed, which will cause changes in the initial conditions of the steel structure space frame.
The excessive plates of the spherical space frame support cannot be changed or substituted arbitrarily. If chemical bolts should be used, chemical bolts must be used, and the plate welding of the plate must meet the design requirements, otherwise random constraints may become ductile constraints or fixed constraints may become forced constraints, resulting in deformation of the support rod. Formed into a compression bar, the component exceeds the allowable stress, loses stability, and produces a psychologically distorted spherical space frame.
The support mode of the spherical space frame cannot be changed or substituted at will. For example, changing the ball type, flat vulcanized rubber bearing, etc. will change the boundary constraint conditions, and the change of boundary constraints will inevitably lead to changes in the structure of the system, which may turn the stable system into a variable system, resulting in structural imbalance.
