SU588281A1 - Figured reinforced concrete unit of sectional-monolithic support - Google Patents

Description

The invention relates to bridge construction and, in particular, to contour reinforced concrete blocks of prefabricated monolithic supports.

Known contour reinforced concrete block prefabricated monolithic support having a front surface, upper and lower beds and an inclined surface 1.

The disadvantage of this block is that it is intended only for the assembly of supports of a strictly specified size and shape.

The closest to the described invention to the technical essence and the achieved result is a contour reinforced concrete block prefabricated monolithic support, having a vertical front surface, an inner surface with reinforcement outlets, the upper bed and the T-shaped bed in the form, vertical side faces 2J.

One of the major drawbacks of this block is the unreliability of the linking of the block with the monolithic core of the support due to the presence on its inner surface of horizontal ceiling planes.

The purpose of the invention is to increase the quality of the block mating with the monolithic core of the support.

The unallocated goal is achieved due to the fact that in a contour reinforced concrete block there is a precast-monolithic support having a vertical front surface, an internal surface with reinforcing outlets, an upper bed and a lower bed T-shaped in plan and vertical side faces,

The inner surface of the block is made with symmetrical bevels to the lateral edges and symmetrical bevels extending downwards to the lower bed, located on the end portions of the inner surface of the block.

FIG. 1 shows a contour of reinforced concrete block in perspective, top view; in fig. 2 - the same, bottom view; in fig. 3 - frontal monolithic support from contour reinforced concrete blocks; in fig. four-

section A-A of FIG. 3

The contour reinforced concrete block has a vertical front surface 1, an internal surface 2 with reinforcement outlets 3, the upper bed 4 is trapezoidal

forms, bottom bed T-shaped in terms of forms 5 and vertical side faces 6.

On the koitsy areas 7 of the inner surface 2, symmetrical bevels 8 to the lateral edges 6 and symmetrical downward slopes 9 and 10 to the lower bed 5 are made. The bevels 8, 9, 10 are located mainly at an angle of 45 °, which ensures the unit's contact with the solid core B pillars and secured anchoring into the masonry.

Precast monolithic support 11 is erected from

contour blocks as follows. Spread blocks B, D, D over the entire height of support 11. The overall stability of the assembled support blocks is provided by horizontal and vertical links 12 and 13.

Through the use of different length types of straight blocks B and curvilinear blocks D and D, various butt-sized supports can be assembled with a certain step in length and width (for example, 1.0 m and 0.5 m), and also re-stitching is required. . After the blocks are mounted, layer-by-layer stacking of monolithic concrete of the support shaft is carried out.

Claims (2)

1.Bobrikov B.V. and others. "Technologi, organization and planning of the construction of bridges," Transport, M., 1967, p. 171-172. 2. Kryltsov EI, et al. "Modern reinforced concrete bridges," Transnort, M., 1974, p. 244. BUT ;; / / d) in g / one / T BUT Rig.