Connecting structure suitable for ultra-deep glass fiber reinforced plastic structures

The T-rib and steel bar snap-fit ​​connection structure solves the problem of poor overall integrity of the connection between the FRP pump cylinder and the structure, thereby improving construction speed and efficiency. It is suitable for FRP structures in ultra-deep foundation pits.

CN223766855UActive Publication Date: 2026-01-06NO 2 CONSTR GRP CO LTD OF SHANGHAI CONSTR GRP
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Patent Information

Application Number
CN202423289883.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-06
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

The existing FRP pump cylinder has poor overall connection with the structure, resulting in slow and inconvenient construction, especially when installed in ultra-deep foundation pits, where there is a risk of it being lifted.

Method used

The structure employs a T-shaped rib and steel bar clip connection, using strong adhesive to connect the bottom of the fiberglass structure to the bottom slab steel bars, increasing overall integrity. Two layers of bottom slab steel bars are welded using I-beams to enhance connection strength and ease of construction.

Benefits of technology

It improves the overall integrity of fiberglass structures, avoids the risk of jacking, increases construction speed and efficiency, and promotes the implementation of green construction concepts.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a connecting structure of an ultra-deep glass fiber reinforced plastic structure, which comprises the glass fiber reinforced plastic structure and a bottom plate reinforcing steel bar, a plurality of T-shaped ribs are fixedly arranged at the bottom of the glass fiber reinforced plastic structure, reinforcing steel bar buckles are fixedly connected on the T-shaped ribs, and the bottom plate reinforcing steel bar is clamped in the reinforcing steel bar buckles. Preferably, the T-shaped rib comprises a horizontal part and a vertical part which are integrally formed, and the front side, the rear side, the left side and the right side of the horizontal part are each fixedly connected with a steel bar buckle. The utility model is suitable for all deeply buried underground glass fiber reinforced plastic structures including the glass fiber reinforced plastic pump cylinder. The T-shaped ribs at the bottom are connected with the bottom plate reinforcing steel bars, so that the prefabricated glass fiber reinforced plastic structure has good integrity, the situation that the glass fiber reinforced plastic structure is light and jacked by confined water can be effectively avoided, meanwhile, compared with welding construction, the reinforcing steel bar buckle connection mode is convenient and fast, the construction speed is increased, and implementation of the green construction concept is promoted.
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Description

Technical Field

[0001] This utility model relates to a connection structure for ultra-deep fiberglass structures, which is particularly suitable for underwater concrete pouring and installation in foundation pits, and belongs to the technical fields of foundation pit engineering and water supply and drainage engineering. Background Technology

[0002] Ultra-deep fiberglass structures are commonly used in foundation pit and water supply and drainage engineering. For example, fiberglass pump cylinders are widely used in urban sewage treatment systems, industrial wastewater treatment, rainwater collection, and flood drainage. Compared to on-site concrete pump cylinders with formwork and pouring, which are more difficult to construct, have higher quality control requirements, and slower construction speeds, fiberglass pump cylinders are widely used due to their lightweight, easy hoisting, good corrosion and wear resistance, and low maintenance costs. However, fiberglass pump cylinders also have certain drawbacks. For instance, the overall integrity of the connection between the fiberglass pump cylinder and the structure is relatively poor. When the pump cylinder needs to be pumped out for maintenance, its low weight makes it susceptible to being lifted up by pressurized water. Currently, the installation of precast fiberglass pump cylinders in ultra-deep foundation pits is done by welding, which is slow and inconvenient. Utility Model Content

[0003] The present invention aims to provide a connection structure for ultra-deep fiberglass structures, which can enhance the integrity of the fiberglass pump cylinder and the base plate, facilitate construction, and effectively overcome the shortcomings of the existing technology.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A connection structure for an ultra-deep fiberglass reinforced plastic (FRP) structure includes the FRP structure and a base slab reinforced with steel bars.

[0006] Several T-shaped ribs are fixed to the bottom of the fiberglass structure, and steel bar clips are fixed to the T-ribs. The bottom plate steel bars are clipped in the steel bar clips.

[0007] Furthermore, the T-rib includes an integrally formed horizontal part and a vertical part. A steel bar clip is fixed to the front and rear sides of the horizontal part at the same height position, and a steel bar clip is fixed to the left and right sides of the horizontal part at another height position.

[0008] Furthermore, the steel bar clip is connected to the T-rib by strong adhesive.

[0009] Furthermore, the cross-section of the fiberglass structure is circular, and the T-ribs are evenly distributed on the circular bottom surface of the fiberglass structure.

[0010] Furthermore, the bottom plate reinforcement has two layers, and the two layers of bottom plate reinforcement are respectively connected to the two layers of reinforcement clips on the T-shaped rib at the same height. I-beams are welded between the two layers of bottom plate reinforcement.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model is applicable to all deep-buried fiberglass structures, including fiberglass pump cylinders. It connects the precast fiberglass structure to the bottom slab reinforcement via a bottom T-rib, giving the structure better overall integrity and effectively preventing it from being lifted by pressurized water. Furthermore, the steel bar snap-fit ​​connection method is more convenient than welding, increasing construction speed and promoting the implementation of green construction concepts.

[0013] 2. This utility model is applicable to ultra-deep foundation pits, and the depth of the foundation pit can reach 17m during on-site construction.

[0014] 3. The connection structure of this utility model improves efficiency by about 30% compared with the traditional construction process of first pouring the base plate and then installing the pump cylinder. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 2 This is a bottom view of a fiberglass structure according to an embodiment of the present invention.

[0017] Figure 3 This is a partial view of the bottom of a fiberglass structure according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the T-rib structure according to an embodiment of the present invention.

[0019] Figure 5 This is a bottom view of the connection between the fiberglass structure and the reinforcing steel of the base plate in one embodiment of the present invention.

[0020] Figure 6 This is a partial view of the connection between the fiberglass structure and the reinforcing steel of the base slab in one embodiment of this utility model. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The objectives, technical solutions, and advantages of the present invention will become clearer from the following description. It should be noted that the described embodiments are preferred embodiments of the present invention, but not all embodiments.

[0022] Example

[0023] This utility model proposes a connection structure for ultra-deep fiberglass structures, applicable to all deeply buried fiberglass structures and fiberglass structures of all cross-sectional shapes. Combined with... Figures 1 to 3As shown, this embodiment includes a fiberglass structure 1 and reinforcing steel bars 2 in the base slab. The cross-section of the fiberglass structure 1 is circular, and 43 T-shaped ribs 3 are evenly distributed at the bottom of the fiberglass structure 1. (Reference) Figure 4 As shown, the T-rib 3 includes an integrally formed horizontal portion 3a and a vertical portion 3b. A steel bar clip 4 is fixed to the front and rear sides of the horizontal portion 3a at the same height, and a steel bar clip 4 is fixed to the left and right sides of the horizontal portion 3a at another height. The steel bar clips 4 are connected to the T-rib by strong adhesive, and their dimensions are adapted to the diameter of the bottom plate steel bars. Two layers of four steel bar clips 4 are arranged on each T-rib 3 for installing the bottom plate steel bars 2.

[0024] refer to Figure 5 and Figure 6 The T-rib 3 is fixedly connected with a reinforcing bar clip 4, and the bottom plate reinforcing bar 2 is clipped into the reinforcing bar clip. Eight I-beams 5 are arranged between the upper and lower bottom plate reinforcing bars 2, and the I-beams 5 are welded to the bottom plate reinforcing bars 2 at the lap joint.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Obviously, any person skilled in the art can easily conceive of substitutions or variations based on the above embodiments to obtain other embodiments, and these should all be covered within the scope of protection of the present utility model.

Claims

1. A connecting structure of an ultra-deep glass steel structure, comprising a glass steel structure and a bottom plate steel bar, characterized in that: a plurality of T-shaped ribs are fixedly arranged at the bottom of the glass steel structure, and a steel bar buckle is fixedly arranged on each T-shaped rib, and the bottom plate steel bar is buckled in the steel bar buckle.

2. The connecting structure of the ultra-deep glass steel structure according to claim 1, characterized in that: the T-shaped rib comprises an integrally formed horizontal part and a vertical part, a steel bar buckle is fixedly arranged on the front and rear sides of the horizontal part at the same height position, and a steel bar buckle is fixedly arranged on the left and right sides of the horizontal part at another height position.

3. The connecting structure of the ultra-deep glass steel structure according to claim 1, characterized in that: the steel bar buckle is connected to the T-shaped rib by strong glue.

4. The connecting structure of the ultra-deep glass steel structure according to claim 1, characterized in that: the cross section of the glass steel structure is circular, and the T-shaped ribs are uniformly arranged on the circular bottom surface of the glass steel structure.

5. The connecting structure of the ultra-deep glass steel structure according to claim 1, characterized in that: the bottom plate steel bar has two layers, the two layers of bottom plate steel bars are respectively at the same height as the two layers of steel bar buckles fixedly arranged on the T-shaped ribs, and an I-shaped steel is welded between the two layers of bottom plate steel bars. ​ ​ ​ ​ ​