Reinforced concrete thin-wall solid pier and building method thereof

Abstract

The invention provides a reinforced concrete thin-wall solid pier which comprises a pier body. The reinforced concrete thin-wall solid pier is characterized by further comprising an FRP layer which is arranged on the outer side of the pier body and wraps the pier body. The reinforced concrete thin-wall solid pier is suitable for meeting structure anti-corrosion requirements under the special conditions such as sea water, special concrete matching ratio and additive are of no need, and manufacturing cost of structure concrete under the special conditions such as sea water is lowered. Templates are of no need, support construction is simplified, support expenditure is saved, high-altitude working construction risks are lowered, a fixing support system structure is light in weight, construction is easy to control, and construction efficiency is improved. The invention further provides a building method of the reinforced concrete thin-wall solid pier.

Description

technical field [0001] The invention relates to the technical field of civil engineering bridges, in particular to a reinforced concrete thin-wall solid pier. The invention also relates to a construction method of the reinforced concrete thin-wall solid pier. Background technique [0002] Reinforced concrete thin-walled solid bridge piers are widely used bridge piers at present, please refer to Figure 1 to Figure 4 As shown in , it is a double thin-walled solid pier of a continuous rigid frame bridge. figure 1 Schematic diagram of the longitudinal layout of the bridge piers, figure 2 It is a structural schematic diagram of the horizontal arrangement of bridge piers, image 3 for figure 1 A schematic diagram of the structure of the A-A sectional view (section at the bottom of the pier), Figure 4 for figure 2 Schematic diagram of the structure of the B-B sectional view (standard section in the middle of the pier). Pier 01 is composed of two thin-walled solid piers ...

AI Technical Summary

Problems solved by technology

[0006] First of all, the ordinary reinforced concrete structure has obvious advantages when it is under pressure, but it is a working structure with cracks, and cracks will appear when it is subjected to bending and torsion. Solid bridge piers need to withstand unbalanced forces during construction, such as wind force, bending and torsion are inevitable, and cracks are prone to appear

Moreover, although the anti-cracking steel welded mesh is installed in the concrete structure to prevent temperature cracks on the concrete surface during concrete curing, due to the practical difficulties of high-altitude concrete curing, the concrete cannot completely avoid temperature cracks after demoulding

[0007] Secondly, the stress and temperature cracks of the reinforced concrete thin-walled solid bridge piers aggravated the corrosion of the steel bars and reduced the durability of the structure; Difficult to ensure consistent appearance and color of concrete, some structures need to be painted and modified, which will increase the cost

[0008] Again, the concrete of ordinary reinforced concrete thin-walled solid bridge piers cannot meet the structural anticorrosion requirements under special conditions such as seawater, and special concrete mix ratios and additives are often used, resulting in high cost of concrete; Pouring construction, high cost of support, and high construction risk in high-altitude operations; when the reinforced concrete thin-walled solid pier is high, sliding form and turning form construction are used. Difficult to manage

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