RU1784058C - Foundation for paired columns - Google Patents

Abstract

Usage: the construction of foundations for paired columns at sedimentary joints. SUMMARY OF THE INVENTION: The foundation consists of a reinforced concrete cage with vertical and horizontal reinforcement. A vertical partition is installed in the grooves, which extends along the sliding seam. 2 ill. CO C

Description

The invention relates to construction, with predominant use for foundations on a sealed base for paired columns at upsetting joints.

Known pile foundation on a compacted base, containing several piles, united by a foundation reinforced concrete block and. The constructive implementation of this model may be monolithic, concreted by a spur of a well, or alternatively monolithic, concreted in a cavity of a reinforced concrete cage submerged in the ground.

The disadvantage of the foundation is the need to arrange paired columns for the foundation supporting the structures of adjacent sections of the building separated by a seam seam, which leads to a specific high material consumption and the complexity of its construction, because the device of the second foundation is possible not earlier than a set of 75% of the strength of monolithic concrete of the previously arranged foundation block.

The closest in technical essence and the achieved effect to the invention is the foundation for paired columns at the expansion joint by tamping the foundation pit in two tracks with the device in the foundation of two cups for installing columns.

The lack of foundation - its high complexity and material consumption due to not

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the cost of building two foundations near the sedimentary joints.

The purpose of the invention is to reduce the material consumption and the complexity of the construction of the foundation.

This goal is achieved in that the foundation for paired columns, including a reinforced concrete block placed in the ground, is equipped with a reinforced concrete cage covering the block and made with opposite grooves on the inner surface, and a partition placed in plan between the columns and brought its ends into grooves clips, wherein the horizontal reinforcement of the clip is made open at the locations of the grooves.

This construction of the foundation allows two foundations to be constructed in one go under the twin columns, while the material and labor costs of erecting the foundation are reduced by 2 times.

Figure 1 shows the foundation for paired columns, a longitudinal section; figure 2 is the same, cross section.

The foundation for paired columns consists of a reinforced concrete cage 1 reinforced with a longitudinal vertical 2 and horizontal reinforcement 3, open at the locations of the grooves 4 of the cage. The vertical partition 5 is placed in the plan between the columns (not shown) and inserted at its ends into the grooves of the cage. Paired glasses 6 are arranged symmetrically with respect to the vertical partition 5. The seal is formed by piles 7 located symmetrically to the longitudinal axis of the glasses or can be formed by a compacted gravel-crushed stone core 8 (not shown).

Before installing the foundation, it is necessary to make a reinforced concrete cage with special reinforcement.

To arrange the foundation for the paired columns, the yoke 1 is immersed in the ground, and the bottom is locked with a punch using a known technique. After that, in the holder 1 form a seam of sliding 9, for which the external additional structural reinforcement is previously cut

10 (for example, using electric welding) Then, between the head of the cage 1 and the headgear (not shown), an inventory gasket 11 is installed, 50-100 mm high.

By hammer blows, they immerse part of the holder 1 to a depth not exceeding the height of the inventory strip 11, thereby creating a slip seam 9, in the locations of the grooves 1, because there is horizontal reinforcement 3

open. Then, inclined and vertical piles 7 are immersed in the cavity of the block 1 coaxially with the longitudinal axes of the future cups b using the known technology. A compacted foundation base can be formed by tamping aggregate (gravel-crushed stone core) 8. Partitions 5 made of any sheet material are inserted into the grooves 4 of the holder 1, and if it is wetted by concrete

pre-coated (for example, with oil).

If necessary (at the request of the project), reinforcing cages are installed in the well and jointly produced

concreting the kneecaps, while forming glasses 6 under the paired column. After a set of 70% concrete strength, further installation of the columns is possible. The work of the foundation on a compacted base for paired columns is as follows: during the redistribution of forces and loads, parts of the foundations unevenly settle into a pound, while moving them along the sliding joint.

Claims (1)

SUMMARY OF THE INVENTION Foundation for twin columns, including a reinforced concrete block placed in the ground, characterized in that that, in order to reduce the material consumption and the complexity of the construction of the foundation, it is equipped with a reinforced concrete cage covering the block and made with opposite grooves on the inside surface, and a partition placed in plan between the columns and brought its ends into the grooves of the cage, while the horizontal reinforcement of the cage is made open at the locations of the grooves. .1 I. -L "