Dapeng Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province, China
When selecting the types of space frame structures, their different characteristics should be considered. In the light steel structure workshop, when there is a large suspension load or moving load, the frame processing manufacturer can consider giving up the portal steel structure and choose the spherical frame. In areas with high snow pressure on the flat roof, the flat roof curve should be beneficial to snow slipping (the snow load should be taken into account if the line is broken at 50 degrees). Nearly half of the total snow load was released. Areas with heavy rainfall are similarly considered.
For the engineering and building capacity of the frame, it is more reasonable to arrange the support points in the frame processing structure than the simple connection point just connected structure. In engineering buildings with large spans covered by flat roofs, suspension bridges or cable-membrane structural systems dominated by prefabricated component tension can be selected.
In the structural design of high-rise residential buildings, steel concrete is often used to form a structure. In high-rise residential buildings with high seismic fortification intensity or very irregular, it is not simple to choose a core tube with a poor seismic rating and a frame for better economic development way. It is advisable to choose a nearby super-large src column, and the key is the structural system of the frame processing support point structure. At present, most of the high-rise residential buildings in many countries are the former. The earthquake resistance level is not good. (It is important to use the characteristics of raw materials flexibly to lay the load-bearing modules as far as possible from the structure, just like hollow bamboo, so it’s important to be strong on the outside and weak on the inside.)
The layout of the space frame structure should be comprehensively considered according to the characteristics of the system, the conditions and characteristics of the load spreading. Generally speaking, the bending stiffness should be symmetrical. The solid model of structural mechanics is clear. Try to limit the hazard category of large loads or moving loads, so that they can be transmitted to the base in an immediate route. The spread of anti-side support between columns should be symmetrical. Its centroid should be as close as possible to the function line of the lateral force (wind shock). Otherwise, the distortion of the structure should be considered. The anti-side of the structure requires multiple defenses. For example, if there is a support point structure, the column head should be able to independently bear at least 1/4 of the total horizontal force.
The layout of the secondary beams of the space frame structure of the building plan can sometimes adjust the load transmission direction to achieve different regulations. Generally, in order to better reduce the cross section, the secondary beams are arranged in the short direction, but this will increase the cross section of the load-bearing beam and reduce the height of the building. On the load-bearing beam, the secondary beam can be discarded to save the load-bearing beam and stigma.
