Prefabricated assembling type support padstone and manufacturing method thereof

Abstract

The invention discloses a prefabricated assembling type support padstone. The prefabricated assembling type support padstone comprises a padstone body, wherein the padstone body is made of ultra-high-performance concrete; bolt holes are reserved at four corners of the padstone body; and a longitudinal slope is arranged on the upper surface of the padstone body. A manufacturing method of the prefabricated assembling type support padstone comprises the following steps: manufacturing a steel template according to designed sizes; pouring the ultra-high-performance concrete, and keeping standing for 24 hours and carrying out steam conservation for 48 hours; demoulding and storing. The padstone is formed by pouring the ultra-high-performance concrete, and has ultra-high strength and is doped with fibers, and therefore, intensive reinforcing bar grids are not needed to be arranged in the padstone, thus, the problem that vibration is not compactly carried out because of intensive reinforcing bars is avoided; the ultra-high-performance concrete has excellent crack resistance performance, industrialized production and conservation can ensure the construction quality, and cracks, caused by various factors, formed on the surface of the padstone are avoided; and moreover, the padstone as well as piers and abutments of bridges can be constructed synchronously, construction processes are simple, the construction speed is quickened, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a prefabricated and assembled support pad stone and a manufacturing method thereof. Background technique [0002] In bridge engineering, the support pad stone is set between the top supports of the pier, which has the functions of adjusting the slope of the support, adjusting the height of the support and transmitting the upper load to the lower structure and foundation, and bears a large local concentrated load. It is an extremely important component in bridges due to its small size, large force, concentrated stress, densely distributed steel bars, and high construction precision requirements. [0003] At present, most of the supporting cushion stones are poured on site. Due to their small size, insufficient attention by the construction unit, and dense steel bars, etc., the quality of the concrete is often uneven, the vibration is not compact, the surface elevation ...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the supporting cushion stones are poured on site. Due to their small size, insufficient attention by the construction unit, and dense steel bars, etc., the quality of the concrete is often uneven, the vibration is not compact, the surface elevation is unqualified, the strength is low, and the surface is cracked. Defects will affect the safety and service life of bridges

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