CN216405501U - Connecting structure of CT type assembled underground structure seam - Google Patents

Abstract

The utility model discloses a connecting structure of a CT type assembly type underground structure joint, which comprises a first precast block and a second precast block, wherein a first main rib is arranged in the first precast block, a T-shaped component is embedded and arranged on the side wall of the first precast block, one end of the first main rib is fixedly connected with the T-shaped component, a second main rib is arranged in the second precast block, a C-shaped component is fixedly arranged at one end of the second main rib, the C-shaped component is embedded and arranged on the second precast block, the T-shaped component is matched with the C-shaped component, and after the T-shaped component is inserted into the C-shaped component, post-plugging steel and grouting body are sequentially arranged between the T-shaped component and the C-shaped component. By adopting the CT type seam connection structure, the construction progress can be accelerated, the efficiency can be improved, and the influence of the complex construction and the long construction period of the concrete cast-in-place wet connection can be avoided; the main reinforcement of the structure can be effectively communicated, the stress safety of the structure is ensured, the steel consumption for joint connection is small, and the manufacturing cost is saved.

Description

Connecting structure of CT type assembled underground structure seam

Technical Field

The utility model belongs to the field of assembled underground structure engineering, and particularly relates to a connecting structure of a CT type assembled underground structure joint.

Background

At present, China is greatly promoting prefabricated assembled structures, and building industrialization can not only improve construction efficiency and construction quality, but also shorten construction period and reduce cost. The assembly type structure is mostly limited to an upper building structure, and for an underground structure, a shield method is mainly used for constructing a tunnel. Along with the expansion of cities and the increase of population, the construction pace of urban underground structures is also urgently needed to be accelerated, the urban underground structures are built in an assembly mode to meet the current industrial policy, and the market demand is extremely high.

The assembled underground structure joint is a weak link of the structure, and the joint connection mode influences the construction mode of the structure and the stress performance during use, and is the most basic guarantee of the structure safety. The prefabricated concrete structure is connected in a wet connection mode and a dry connection mode. The wet connection is mainly post-cast in-place concrete connection, and has the problems of complex construction and long construction period. The dry connection is bolted connection, welded connection, prestressed connection, and the like. The connection mode of the joint is influenced by engineering hydrogeology condition, surrounding environment, engineering cost and the like, so that the structure is guaranteed to be stressed reliably, construction is convenient, the construction cost is proper, and the joint is the best choice.

Based on the structure, the utility model provides a novel joint connection structure, which can accelerate the construction progress, improve the efficiency, avoid the cast-in-place wet connection of concrete, ensure the effective communication of the main reinforcement of the structure, ensure the stress safety of the structure, reduce the steel consumption for joint connection and save the manufacturing cost. After industrial technologies and equipment become mature, market demands are great.

Therefore, a connecting structure of a CT-type fabricated underground structural joint needs to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a connecting structure of a CT type assembled underground structure joint.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a connection structure of CT type assembled underground structure seam, includes first prefabricated section and second prefabricated section be provided with first main muscle in the first prefabricated section, and the embedding is provided with T type component on the lateral wall of first prefabricated section, the one end of first main muscle with T type component fixed connection be provided with second main muscle in the second prefabricated section, the fixed C type component that is provided with in one end of second main muscle, C type component embedding sets up on the second prefabricated section, just T type component with C type component phase-match, T type component is inserting behind the C type component T type component with back plug steel and slip casting body still set gradually between the C type component.

Preferably, the first main reinforcement is connected with the T-shaped component through a reinforcement sleeve, and the second main reinforcement is connected with the C-shaped component through a reinforcement sleeve.

So set up, convenient connection can accelerate the construction progress, raises the efficiency.

Preferably, the rear plug steel is inserted from one end of the T-shaped member and the C-shaped member, and the rear plug steel is cast steel.

So set up, fix connection structure, prevent to remove because of the seam is too big.

Preferably, the grouting body is made of organic or inorganic grouting materials.

So set up, can seal the seam department, guarantee not take place the percolating water in the seam.

Preferably, a tenon is arranged on the first precast block, a mortise is arranged on the second precast block, and the tenon is matched with the mortise.

Preferably, the first main rib and the second main rib are two sets, and the first main rib is symmetrically arranged on two sides of the tenon, and the second main rib is symmetrically arranged on two sides of the mortise.

So set up, further strengthened the joint strength of seam department, can effectively resist the shearing force.

Preferably, the steel bar sleeve is welded and fixed with the T-shaped member and the C-shaped member respectively, and the first main rib and the second main rib are connected with the steel bar sleeve through threads respectively.

So set up, can guarantee the joint strength of structure owner muscle and component, guarantee structure atress safety.

The utility model has the advantages and positive effects that:

by adopting the CT type seam connection structure, the construction progress can be accelerated, the efficiency can be improved, and the influence of the complex construction and the long construction period of the concrete cast-in-place wet connection can be avoided; the main reinforcement of the structure can be effectively communicated, the stress safety of the structure is ensured, the steel consumption for joint connection is small, and the manufacturing cost is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the arrangement of first and second main ribs of the present invention;

FIG. 2 is a schematic longitudinal cross-sectional view of a CT connection of the present invention;

FIG. 3 is a schematic view of a first preform structure of the present invention;

FIG. 4 is a schematic view of a second preform structure of the present invention;

FIG. 5 is an enlarged partial view of a CT connection;

FIG. 6 is an isometric view of the T-shaped member;

FIG. 7 is an isometric view of the C-shaped member.

The reference numerals are explained below:

1. a first precast block; 2. a first main rib; 3. a T-shaped member; 4. a second precast block; 5. a second main rib; 6. a C-shaped member; 7. a steel bar sleeve; 8. back plug steel; 9. a tenon; 10, mortises and 11; and (4) grouting.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts conventional means such as bolts, rivets, welding and the like mature in the prior art, the machines, the parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, so that the detailed description is omitted.

The utility model will be further described with reference to the accompanying drawings in which:

example 1

As shown in fig. 1-7, a CT-type connecting structure for an underground structural joint, which includes a first prefabricated block 1 and a second prefabricated block 4, a first main rib 2 is disposed in the first prefabricated block 1, a T-shaped member 3 is embedded in a side wall of the first prefabricated block 1, one end of the first main rib 2 is fixedly connected to the T-shaped member 3, a second main rib 5 is disposed in the second prefabricated block 4, one end of the second main rib 5 is fixedly provided with a C-shaped member 6, the C-shaped member 6 is embedded in the second prefabricated block 4, the T-shaped member 3 is matched with the C-shaped member 6, and after the C-shaped member 6 is inserted into the T-shaped member 3, a rear plug steel 8 and a grouting material 11 are sequentially disposed between the T-shaped member 3 and the C-shaped member 6.

As shown in fig. 3 and 4, the first main reinforcement 2 is connected with the T-shaped member 3 through the steel sleeve 7, the second main reinforcement 5 is connected with the C-shaped member 6 through the steel sleeve 7, so that the connection is convenient, the construction progress can be accelerated, and the efficiency is improved.

As shown in fig. 2 and 5, the rear plug steel 8 is inserted from one end of the T-shaped member 3 and the C-shaped member 6, and the material of the rear plug steel 8 is cast steel, so that the connection structure is fixed to prevent movement due to an excessively large joint.

The grouting body 11 is made of organic or inorganic grouting materials, and the arrangement can seal the joint so as to ensure that no water leakage occurs in the joint.

As shown in fig. 3 and 4, a tenon 9 is arranged on the first precast block 1, a mortise 10 is arranged on the second precast block 4, the tenon 9 is matched with the mortise 10, the first main ribs 2 and the second main ribs 5 are both two groups, the two groups of first main ribs 2 are symmetrically arranged on two sides of the tenon 9, the two groups of second main ribs 5 are symmetrically arranged on two sides of the mortise 10, so that the joint strength of the joint is further strengthened, and the shearing force can be effectively resisted.

Reinforcing bar sleeve 7 respectively with T type component 3 and C type component 6 welded fastening, first main muscle 2 and second main muscle 5 are connected through the screw thread with reinforcing bar sleeve 7 respectively, so set up the joint strength that can guarantee structure main muscle and component, guarantee structure atress safety.

The working process of the embodiment: this connection structure at first needs to carry out prefabricated processing in the mill, the staff at first in the reinforcing bar sleeve 7 with first main muscle 2 screw in, be connected first main muscle 2 and T type component 3 through the screw thread, be connected second main muscle 5 through reinforcing bar sleeve 7 and C type component 6 again, the staff ties up first main muscle 2 in first prefabricated section 1 after that, then tie up second main muscle 5 in second prefabricated section 4, pour after tying up, assemble after finishing waiting first prefabricated section 1 and second prefabricated section 4 to reach intensity, first fix second prefabricated section 4 before assembling, insert first prefabricated section 1 from the one end of second prefabricated section 4 after second prefabricated section 4 is fixed, and guarantee that T type component 3 and C type component 6 align, align tenon 9 with tongue-and-groove 10 simultaneously, insert T type plug-in component 3 and C type component after first prefabricated section 1 inserts second prefabricated section 4 and insert after second prefabricated section 4 inserts Between the type component 6, can accomplish and fix first prefabricated section 1 and second prefabricated section 4, in the space between back plug steel 8 inserts C type component 6 and T type component 3, can guarantee C type component 6 and T type component 3 and reliably extrude under the exogenic action, prevent that the seam from producing too big opening, fix and accomplish after the completion in C type component 6 pouring slip casting body 11 and consolidate once more, also can seal simultaneously and prevent leaking, slip casting body 11 can adopt grout, cement base epoxy thick liquid or other organic or inorganic slip casting material.

While one embodiment of the present invention has been described in detail, the present invention is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims (7)

1. A connection structure of CT type assembled underground structure seam which characterized in that: comprises a first precast block (1) and a second precast block (4), wherein a first main rib (2) is arranged in the first precast block (1), and a T-shaped component (3) is embedded and arranged on the side wall of the first precast block (1), one end of the first main rib (2) is fixedly connected with the T-shaped component (3), a second main rib (5) is arranged in the second precast block (4), the second main rib (5) is arranged opposite to the first main rib (2), and a C-shaped member (6) is fixedly arranged at one end of the second main rib (5), the C-shaped component (6) is embedded on the second precast block (4), and the T-shaped component (3) is matched with the C-shaped component (6), after the T-shaped component (3) is inserted into the C-shaped component (6), rear plug steel (8) and grouting body (11) are further arranged between the T-shaped component (3) and the C-shaped component (6) in sequence.

2. A CT-style fabricated underground structural seam joining structure according to claim 1, wherein: the first main rib (2) is connected with the T-shaped component (3) through a steel bar sleeve (7), and the second main rib (5) is connected with the C-shaped component (6) through the steel bar sleeve (7).

3. A CT-style fabricated underground structural seam joining structure according to claim 1, wherein: the rear plug steel (8) is inserted from one end of the T-shaped member (3) and one end of the C-shaped member (6), and the rear plug steel (8) is made of cast steel.

4. A CT-style fabricated underground structural seam joining structure according to claim 1, wherein: the grouting body (11) is made of organic or inorganic grouting materials.

5. A CT-style fabricated underground structural seam joining structure according to claim 1, wherein: the first precast block (1) is provided with a tenon (9), the second precast block (4) is provided with a mortise (10), and the tenon (9) is matched with the mortise (10).

6. The connecting structure of a CT-type fabricated underground structural seam according to claim 5, wherein: the first main rib (2) and the second main rib (5) are two groups, the first main rib (2) is symmetrically arranged on two sides of the tenon (9), and the second main rib (5) is symmetrically arranged on two sides of the mortise (10).

7. A CT-style fabricated underground structural seam joining structure according to claim 2, wherein: the steel bar sleeve (7) is fixedly welded with the T-shaped component (3) and the C-shaped component (6) respectively, and the first main rib (2) and the second main rib (5) are connected with the steel bar sleeve (7) through threads respectively.

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