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30
2023
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10
What has changed from steel reinforced concrete column to steel reinforced concrete column?
Source:
Network
For different building structure systems, when steel reinforced concrete
For different building structure systems, when steel reinforced concrete is used in the lower part of the structure and steel reinforced concrete columns are used in the upper part, the mutation of structural stiffness and bearing capacity should be avoided as much as possible to avoid the formation of weak layers. Therefore, a transition layer shall be set between the two structure types, and the setting of the transition layer shall meet the following requirements:
When it is determined from the design calculation that a certain layer of column can be changed from steel reinforced concrete beam to concrete column, the lower section steel concrete column steel should extend upward one or two layers as the transition layer, and the section size of the middle section steel can be changed appropriately according to the specific situation of the beam. In the longitudinal reinforcement structure, the transition layer column shall be calculated as the reinforced concrete column, and the stirrup shall be densified along the height of the column.
The section steel in the structural transition layer shall be provided with studs, the horizontal and vertical spacing between the studs and the plate wall shall not be greater than 200mm, and the distance from the studs to the edge of the section steel plate wall shall not be less than 50mm. According to the calculation results, there is a reliable basis for determining the number of studs.
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