Ultra high performance concrete rib plate with rib bottom steel plate and machining method thereof

Abstract

The invention provides an ultra high performance concrete rib plate with a rib bottom steel plate and a machining method thereof. The ultra high performance concrete rib plate with the rib bottom steel plate is mainly to solve technical problems, such as easy fatigue cracking, poorer tensile and compressive performance, low section utilization efficiency and high cost, of an existing ultra high performance concrete rib plate. The key point of the technical scheme is that more than three plate ribs (2) are arranged at the bottom of a panel (1) to be connected with the panel (1) to form a wholebody; a reinforcing mesh (5) is arranged in the panel (1); the rib bottom steel plate (3) is arranged at the bottom of a rib body (7); a shear connector (4) is arranged on the upper surface of the ribbottom steel plate (3); a hoop (6) is arranged at the lower part of the reinforcing mesh (5); the hoop (6) is fixedly connected with the shear connector (4) so that the reinforcing mesh (5) is connected with the hoop (6) and the shear connector (4) to form an integral reinforcement structure; and ultra high performance concrete is poured outside the reinforcing mesh (5), the hoop (6) and the shear connector (4) to form the panel (1) and the plate ribs (2) which are connected to form a whole body.

Description

technical field [0001] The invention relates to an ultra-high-performance concrete rib plate using a rib-bottom steel plate and a processing method thereof. Background technique [0002] The bridge deck directly bears the vehicle load and the environment, and is the most direct component affected by overload, corrosion, fatigue and other unfavorable factors. Therefore, its working status will directly affect the durability and driving comfort of the main structure of the inverted bridge. Orthotropic steel decks and ordinary concrete decks are two main types of decks currently used in bridge engineering. Ordinary concrete bridge decks can better adapt to asphalt concrete bridge deck pavement or cement pavement, and the driving effect is better. The demand for span bridges, and it is easy to crack near the wet joints, negative bending moment area, and stay cable anchorage area. Orthotropic steel bridge decks have the advantages of light weight, large ultimate bearing capacit...

AI Technical Summary

Problems solved by technology

However, this type of structure is only suitable for ordinary concrete composite bridge decks. For ultra-high performance concrete composite bridge decks, the strong confinement steel plate is easy to cause shrinkage and cracking of ultra-high performance concrete, and the excellent compressive and tensile properties of ultra-high performance concrete cannot be exerted. Moreover, the steel plate with holes in the head welded at both ends of the bottom steel plate in the width direction will block the continuous and random distribution of steel fibers, which will have an adverse effect on structural safety

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