Columns

Column – a vertical element of the building frame, designed for load perception from the overlapping elements and walling. Precast concrete columns used in the construction of single- and multi-storey buildings.Plant “Oberbeton” produces precast concrete columns of different lengths and cross sections. The minimum section size is 300×300 mm, maximum – 1200×1200 mm. The maximum height of a column is 24 m. Columns height from 20 m to 24 m can be manufactured as one piece (uncut), and composite. Fire resistance of precast concrete columns – R150 (according to the DBN V.1.1.7-2002). Certificate of conformity № UA1.003.0049231-13.

Колонны

Parameters of rectangular columns

Columns
Колонны
Колонны фото
*З Per unit weight of concrete value adopted 2500 kg/m3
** The table shows the most commonly used parameters of columns. Plant “Oberbeton” can make columns of any size, according to your wishes
 
 

Console protrusions

Columns can be with consoles for supporting overlapping, roof beams, supporting cranes elements, etc.
Колонны
Колонны фото
Колонны

Connection between the elements of a column

When installing the composite columns elements connected by junction “column-to-column”.
Joints are made by bolting connectors that are connected by an anchor in certain elements (Fig. 1).

Also, joints are made by armature releases through the channels with their subsequent monolithing (Fig. 2).

(fig.1)

Колонны

(fig. 2)

Колонны

Column connection with the foundation

Fixing concrete columns with the foundation is performed by their monolithing in foundation glasses (Fig. 3), Fig. 4).

(fig. 3)

Колонны

(fig. 4)

Колонны

In case without using glasses – by connecting embedded parts of columns with anchor bolts of foundation (Fig. 5, Fig. 6).

(fig.5)

Колонны

(fig. 6)

Колонны

When applying foundation with anchor used column shoes. This are fixing elements, which provide fast, rigid connection between precast concrete columns and foundations. (Fig. 7).

Load of the column is transmitted through shoes and bolts on supporting structure of the building. Finished column fixed by anchor bolts. Locking is provided with nuts and washers, which allow to adjust the height of the right level and vertical position of the column. Connection between the base of the column and the bottom structure is concreted. Number of shoes in the column depends on its size, the load on the column, mark of concrete and the type of shoe; calculated individually for each project.

(fig. 7)

Колонны схема

Node connections of a beam and a column

Node connections of a beam and a column, depending on constructive scheme of the building, can be hinge (Fig. 8), hinge with a hard disk of overlap (Fig. 9).

(fig. 8)

Колонны

(fig. 9)

Колонны
Production tolerances (according to DSTU B B.2.6-60: 2008)
1. Length (L)
± 10 mm or L/1000
2. Cross-section (a, b)
 ± 10 mm
3. Curvature (a)
± 10 mm or L/750
4. Orthogonal cross-section (p)
± 5 mm
5. Orthogonality of end planes (s)
± 5 mm
6. Position of consoles (lk, hk)
±8 mm
7. Dimensions of consoles (lk, bk, hk)
±8 mm
8. Orthogonality of console (r)
±5 mm
9. Placement of embedded parts (t):
– Binding in height (t1)
±15 mm
– The size of embedded parts in height (t2)
±10 mm
– Binding on width (t3)
±5 mm
10. Placement of holes, voids
±20 mm
Колонны
Колонны