Prestressed concrete H-shaped beam plate

Abstract

The invention discloses a prestressed concrete H-shaped beam plate. The H-shaped beam plate is an H-shaped prefabricated part formed by a horizontal web and two edge beams arranged in the length direction of the horizontal web, the horizontal web is a reinforced concrete dense-rib sandwich slab, and the two vertical edge beams are prestressed concrete rectangular beams arranged on two sides of the web in the length direction of the horizontal web and have the length equal to that of the horizontal web. The horizontal web adopts a frame type structure defined by upper and lower panels and longitudinal and transverse ribs which are located between the upper and lower panels and arranged in a crossed manner, and the longitudinal and transverse ribs are arranged in length and width directions of the upper and lower panels to divide an area between the upper and lower panels into multiple independent cavities filled with corresponding light filling blocks. The section height of the two edge beams of the H-shaped beam plate is greatly increased, the prestressed structure is adopted, the rigidity and bearing capacity are improved, meanwhile, the horizontal web adopts a dense-rib sandwich construction form, the consumption of concrete in the horizontal web is reduced, the self-weight is reduced, and the material cost is saved. Therefore, the construction cost is reduced and construction is simplified on the premise that the bearing capacity, the integrity and the safety are guaranteed, and the beam plate is applied to overpass construction and has very obvious economic benefit.

Description

technical field [0001] The invention relates to a prefabricated H-shaped beam slab, in particular to a prestressed concrete H-shaped beam slab. Background technique [0002] In the construction of pedestrian bridges in cities and high-grade highways and pedestrian passage bridges on small rivers, there are currently two types of steel structures and cast-in-place reinforced concrete structures commonly used. The cast-in-place reinforced concrete structures are low in cost and easy to maintain. Advantages, but the construction is complicated and the construction period is long, which affects urban traffic; the steel structure installation period is short, but the cost is high, and the later maintenance cost is high. With the increasing congestion of urban traffic and the speeding up of comprehensive treatment of small rural rivers, various pedestrian access bridges will increase day by day. Therefore, in order to reduce the construction cost and shorten the construction peri...

AI Technical Summary

Problems solved by technology

[0002] In the construction of pedestrian bridges in cities and high-grade highways and pedestrian passage bridges on small rivers, there are currently two forms of steel structures and cast-in-place reinforced concrete structures. The cast-in-place reinforced concrete structures are low in cost and easy to maintain. Advantages, but the construction is complicated and the construction period is long, which affects urban traffic; the steel structure installation period is short, but the cost is high, and the later maintenance cost is high

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