The difference between dark columns, pilasters, structural columns, and core columns

Most of the pilasters are also set in brick concrete, also called brick stacks, and the structural columns set in the wall can also be called pilasters in general, in fact, pilasters can also be stressed alone! In this case, depending on how you calculate, if you calculate it in it, it is a stressed member!

The core column is a construction method in the column, when the axial compression ratio of the column is not enough, or the cross-section of the column is too large, the core column is generally set!

After a few more steps, the situation suddenly changed.

The core column is not a column inside a hollow block?

You've explained in enough detail, there's really nothing to add.

Pilasters are a kind of reinforcing columns that are attached to the inside and outside of the wall. The core column is the column that is poured inside the masonry wall.

Dark columns and end columns are columns in the shear wall, and there are generally two kinds, one is a constrained end (dark) column and a structural end (dark) column.

Distinguish. 1. The length and thickness are different: the width of the hidden column is equal to the thickness of the wall. The width of the end column is greater than the wall thickness, and the length and width of the side column are greater than or equal to 2 times the wall thickness.

2. Different arrangement positions: In a simple shear wall structure, the end column layout position is generally at both ends or corners of the shear wall, and the column width is generally greater than or equal to the thickness of the shear wall. A dark column is a column whose width is equal to the thickness of the shear wall.

If it is ranked last, it can also be used as the closing column of the analysis.

Details: The dark column of shear wall is a kind of edge member, which mainly bears the tensile and compressive stress caused by the bending moment of the wall plane. Conceptually, a shear wall can be thought of as a deep beam placed vertically, with a dark column at the edge of the wall being the curved longitudinal reinforcement area of the deep beam.

If there is a single side beam outside the plane of the wall limb, and there is no dark column at the shelving point, because the shear wall does not consider bearing the out-of-plane bending moment, a dark column should be arranged at the beam position to bear the out-of-plane bending moment. Depending on the location and seismic design level, there are generally two types of dark columns: one is the constrained end (dark) column and the other is the structural end (dark) column.

The end column and the dark column are both shear wall structural wall columns, and the 03G101-1 atlas is collectively referred to as "edge members", and is divided into two categories: "constrained edge members" and "structural edge members".

The width of the dark pillar is equal to the thickness of the wall.

The width of the end column is larger than the thickness of the wall, and page 18 of the 03G101-1 atlas stipulates that the size of the length and width of the end column YDZ at the constraint edge should be greater than or equal to 2 times the wall thickness; The end post acts as a frame column. As long as the wall is protruding in the software, it is calculated according to the end post, regardless of the category of dark post or end post.

1.The dark column and the end column are the columns in the shear wall, and there are generally two kinds, one is the constrained end column and the other is the structural end column.

2.In a simple shear wall structure, the end column arrangement position is generally at both ends or corners of the shear wall, and the column width is generally greater than or equal to the thickness of the shear wall.

3.The dark column refers to the column arranged in the shear wall with the column width equal to the thickness of the shear wall, which is generally not out of the outside, and if the layout position is at the end, it can also be used as an end column analysis.

4.The structural column is a column arranged in accordance with the structural construction requirements, the scope of use is relatively large, the brick-concrete structure, the frame structure, etc. have structural columns, generally not as a separate load-bearing component, the main root is quietly set up according to the local seismic fortification, and the relatively long one-way wall generally needs to be arranged.

5.As the name suggests, frame columns are columns in frame structures that are used to support vertical loads in the structure.

1. Core column: refers to the reinforced concrete column inside the masonry formed after inserting the vertical steel bar in the internal cavity of the block and pouring the concrete (the one without inserting the steel bar is called the plain concrete core column), which is divided into two types: block core column and frame column core column.

2. There are two differences between the core column and the structural column:

1. The roles of the two are different:

1) The function of the core column: in order to improve the seismic performance of the masonry structure of the multi-storey building, the code requires that the reinforced concrete local cavity column should be set at the appropriate part of the masonry of the house and connected with the ring beam to jointly strengthen the stability of the building, and this reinforced concrete column is usually called the block core column.

2) Structural column effect: under the action of periodic repeated horizontal loads, the core column has good ductility and energy dissipation capacity, which can effectively improve the seismic performance of reinforced concrete columns under the condition of high axial compression ratio.

2. The meaning of the two is different:

1) The meaning of the core column: in order to improve the seismic performance of the masonry structure of the multi-storey building, the code requires that the reinforced concrete column should be set at the appropriate part of the masonry of the house and connected with the ring beam to jointly strengthen the stability of the building, and the reinforced concrete column is usually called the block core column.

2) The meaning of the structural column: the reinforced concrete structural column should also be set in the wall of the multi-storey brick-concrete structure building, and connected with the ring beams of each layer to form a space frame that can resist bending and shearing, which is an effective measure to prevent the collapse of the house. The setting of the structural columns is at the four corners of the outer wall, the junction of the transverse wall and the outer longitudinal wall at the staggered part, the two sides of the larger opening, and the junction of the inner and outer walls of the large house.

Core column refers to the reinforced concrete column inside the masonry formed after inserting vertical steel bars into the internal cavity of the block and pouring concrete (those without inserting steel bars are called plain concrete core columns), which are divided into two types: block core columns and frame columns.

Structural columns refer to the reinforced concrete structural columns that should also be arranged in the walls of multi-storey brick-concrete buildings in order to enhance the integrity and stability of the building, and be connected with the ring beams of each layer to form a spatial framework that can resist bending and shearing.

The main differences between core columns and structural columns are as follows: core columns mainly resist vertical loads; The structural column is mainly responsible for resisting shear force, seismic and other lateral loads.