Prestressed concrete hollow plate reinforcing device and method

Abstract

The invention discloses a prestressed concrete hollow plate reinforcing device and method. The device comprises a prestressed concrete hollow plate and an unbonded steel strand for reinforcing the prestressed concrete hollow plate. The unbonded steel strand penetrates into a hollow hole of the prestressed concrete hollow plate from one end of the prestressed concrete hollow plate, and the unbondedsteel strand penetrates out of a reinforcing hole in the other end of the prestressed concrete hollow plate after steering through a steering block. The two ends of the unbonded steel strand are anchored to support beams of the prestressed concrete hollow plate through anchoring devices. According to the prestressed concrete hollow plate reinforcing device and method, the aim of improving the bearing capacity of the prestressed concrete hollow plate is achieved without increasing the dead weight and section height of the prestressed concrete hollow plate. Due to the fact that the prestressedconcrete hollow plate can be reinforced simply on the plate face, the limitation that according to an existing reinforcing method, the plate bottom needs to be reinforced is solved, and certain special needs are met. In addition, the device and method are clear in reinforcing structure stress, convenient to construct, short in construction period and low in reinforcing cost, and have high application value.

Description

technical field [0001] The invention relates to a prestressed concrete hollow slab reinforcing device and method. Background technique [0002] Prestressed concrete hollow slabs have been widely used in construction projects and bridge projects in my country because of their unique advantages such as reasonable stress, factory production, light weight, and economical applicability. However, due to the change of its function or application needs, it is necessary to improve the bearing capacity of the prestressed concrete hollow slab; or when it is found in some projects that the prestressed concrete hollow slab has insufficient bearing capacity and other quality risks that affect the safety of the building structure, it must be Take steps to strengthen. [0003] When improving the structural bearing capacity of prestressed concrete hollow slabs, it is first necessary to reinforce the prestressed concrete hollow slabs. In the existing prestressed concrete hollow slab reinfor...

AI Technical Summary

Problems solved by technology

In the existing prestressed concrete hollow slab reinforcement technology, the commonly used reinforcement method is to paste steel plates or carbon fibers on the bottom of the prestressed concrete hollow slab and pour concrete laminated layers on the slab surface for reinforcement. This is not only difficult to construct, but also expensive to reinforce High, long construction period, and increase the self-weight and section height of the prestressed concrete hollow slab, and even affect its use function

Especially under certain special conditions that do not allow reinforcement construction at the bottom of the slab, it is difficult to reinforce the prestressed concrete hollow slab with existing reinforcement methods

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