Second, there are two differences between core columns and constructional columns:
1, which have different functions:
(1) Function of core column: In order to improve the seismic performance of masonry structure of multi-storey buildings, the code requires that reinforced concrete columns should be set at appropriate positions in the masonry of buildings and connected with ring beams to enhance the stability of buildings. This kind of reinforced concrete column is usually called block core column.
(2) Function of constructional column: Under cyclic horizontal load, the core column has good ductility and energy dissipation capacity, which can effectively improve the seismic performance of reinforced concrete columns under high axial compression ratio.
2, the meaning of the two is different:
(1) Meaning of core column: In order to improve the seismic performance of masonry structure of multi-storey buildings, the code requires that reinforced concrete columns should be set at appropriate positions in the masonry of buildings and connected with ring beams to enhance the stability of buildings. This kind of reinforced concrete column is usually called block core column.
(2) Significance of constructional columns: Reinforced concrete constructional columns should also be set in the walls of multi-storey brick-concrete buildings and connected with ring beams at all levels to form a space frame that can be bent and sheared, which is an effective measure to prevent houses from collapsing. The constructional column is located at the four corners of the external wall, the intersection of the transverse wall and the external longitudinal wall, the two sides of the larger hole, and the intersection of the internal and external walls of the large room.
Extended data:
Requirements for setting constructional column:
1. According to the requirements of seismic code, constructional columns are mainly arranged in seismic walls.
2, 120 (or 100) thick wall When the wall height is less than or equal to 3 m, the width of the hole is less than or equal to 2.4m, if not, constructional columns or reinforced concrete horizontal tie beams should be added.
3. 180 (or 190) thick wall When the wall height is less than or equal to 4m, the width of the hole is less than or equal to 3.5m Otherwise, constructional columns or reinforced concrete horizontal tie beams should be added.
4. When there is no frame column at the corner of the wall and the junction of walls with different thicknesses, constructional columns should be set.
5, when the wall length is more than 5m (or the wall length is more than 2 times the height), should be in the middle of the wall length (in case of the mouth of the cave at the mouth of the cave) set the constructional column.
6. The constructional column should be set on both sides of the big hole and the end of the unconstrained wall. The Rachel reinforcement between the constructional column and the wall is 2 φ 6 @ 500, which is arranged along the full height of the wall.
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