CN204151698U - T beam transverse prestress reinforcing construction - Google Patents

Abstract

The utility model discloses a T-beam transverse prestress reinforcement structure, which belongs to the field of bridge structure reinforcement. It mainly solves the problem of insufficient transverse rigidity between T beams. The main technical solution is: as shown in the attached figure, according to the size of the T-beam, drill a prestressed reserved hole at a suitable position near the bottom of the T-beam web, calculate the position of the beam according to the cross-sectional size of the T-beam and the position of the hole, and in this Reinforced concrete beams are poured with formwork on the position, and prestressed channels are reserved in the beams. When the strength of the concrete meets the requirements, it is prestressed and anchored to strengthen the transverse connection between T beams.

Description

T-beam transverse prestressed strengthening structure

technical field

The utility model relates to a T-beam transverse prestress reinforcement structure, which belongs to the field of bridge reinforcement.

Background technique

T-beams Many bridge structures were built in my country in the 1970s and 1980s. With the passage of time, a considerable part of these T-beams have been severely damaged, such as beam deflection and many cracks. The development of the economy has led to the rapid development of logistics in today's society, and the transportation of various large-scale equipment has brought a great burden to these diseased bridges. The frequent appearance of overloaded vehicles and extra-heavy vehicles has caused serious damage to bridges and threatened the safety of people's lives and properties. Therefore, it is imperative to repair and strengthen this part of the bridge. The utility model proposes a structural form in which a prestressed beam is used to strengthen a T beam, which is characterized by safety and reliability, convenient and fast construction, and good economy.

Utility model content

In order to strengthen the transverse rigidity of the T-beam bridge, the utility model proposes a structure for transverse prestressed reinforcement of the bridge. The construction of this structure is convenient and fast, and the cost is extremely economical.

The utility model is realized through the following technical solutions: T-beam transverse prestressed reinforcement structure, a crossbeam is poured between two T-beams, and prestressed steel bars are used to apply prestress, so that the crossbeam is in a state of compressive stress. Through the above steps, the transverse connection of the T-beams is strengthened to achieve the purpose of strengthening the transverse stiffness of the bridge and strengthening the bridge.

Description of drawings

Figure 1. Plan view of T-beam structure strengthened by prestressed concrete beams

Figure 2. Side view of the T-beam structure reinforced with prestressed concrete beams

Among them: 1. T beam, 2. Concrete beam, 3. Prestressed steel bar, 4. Anchor bolt.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

For the T-beam transverse reinforcement structure shown in Figure 1 and Figure 2, according to the actual internal force distribution of the T-beam web, two prestressed reinforcement holes are drilled at a suitable position from the bottom of the T-beam ① web, and poured at the corresponding position Reinforced concrete beams ②, reserve prestressed holes in the middle of the beams. After the strength of the crossbeam meets the requirements, pass the prestressed steel bar ③ through the reserved hole, and apply prestress, and use the anchor bolt ④ to anchor the prestressed steel bar. As mentioned above, the utility model can be realized.

Claims (1)

1. A kind of T beam transverse prestressed reinforcing structure, it is characterized in that: T beam transverse prestressed reinforced structure, pouring crossbeam between two T beams, and use prestressed steel bar to apply prestressing force, make crossbeam be in compressive stress state. the