CN206368306U - A kind of dismountable composite structure layer - Google Patents

Abstract

The utility model discloses a detachable composite structure layer, which comprises a base, a prefabricated concrete beam and a prefabricated concrete slab, one end of the prefabricated concrete beam is provided with a first block, and the other end of the prefabricated concrete beam is provided with a second block. A first clamping slot matched with a clamping block, steel cages are arranged at equidistant intervals inside the precast concrete beam, and a second fixing rod is pre-embedded between the two connected steel cages, and two fixed bars are pre-embedded in the precast concrete beam , and a precast concrete slab is detachably installed above two adjacent precast concrete beams, and a settlement joint is provided between the two connected precast concrete slabs. Matching second through holes, and a grouting opening is opened at the middle position of the prefabricated concrete slab. The utility model effectively ensures the flatness of the composite structure layer, and simultaneously improves the driving comfort of the structure.

Description

A detachable composite structural layer

technical field

The utility model relates to the technical field of highway engineering, in particular to a detachable composite structure layer.

Background technique

At present, the domestic cement concrete pavement is mainly based on on-site pouring. On-site construction will generate a large amount of waste water, waste gas, and waste residue. The construction work takes a long time, the construction machinery operates a large amount, and the degree of specialization of personnel is low. After on-site pouring, long-term maintenance is required. And other unfavorable factors, due to the rapid economic development, it is necessary to build expressways faster, stronger and more environmentally friendly.

In recent years, prefabricated assembly structures have been widely used in the construction industry, promoting the development of the construction industry to be more green and environmentally friendly, better guaranteeing the quality of buildings, and greatly shortening the construction period. In the transportation industry, prefabricated assembly pavement The prefabricated concrete pavement is concentrated on site, and then the prefabricated concrete slab whose strength meets the design requirements is transported to the construction site, and the cement concrete pavement formed is assembled.

However, ordinary prefabricated pavement has defects such as poor pavement flatness, many functional holes on the surface of the pavement, and affecting the integrity of the pavement surface.

Utility model content

The purpose of this utility model is to provide a detachable composite structure layer to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a detachable composite structure layer, including a base, a precast concrete beam and a precast concrete slab, one end of the precast concrete beam is provided with a first block, and the precast concrete The other end of the beam is provided with a first card slot matching the first block, and the two precast concrete beams connected are detachably connected to the first card slot through the first block, and the first block and the first card There are first through holes on the grooves, and a base is provided at the bottom of the connection between the two precast concrete beams. A first fixing rod is detachably installed at the middle position inside the base, and the end of the first fixing rod is far away from the base. The first through hole that runs through the first clamping block and the first clamping groove extends to the position above the precast concrete beam, and the inside of the precast concrete beam is provided with steel cages at equidistant intervals, and a second The top of the second fixing rod runs through the precast concrete beam and extends to the position above the precast concrete beam. Two prefabricated concrete beams are pre-embedded, and precast concrete slabs are detachably installed above the two adjacent precast concrete beams. One end of the precast concrete slab is provided with a second clamping block, and the other end of the precast concrete slab is provided with a second clamping groove matching the second clamping block, and the two precast concrete slabs are connected through the second clamping block and the second clamping slot. The card slot is detachably connected, and a settlement joint is provided between the two connected precast concrete slabs. The precast concrete slab is provided with a second through hole matching the direction of the first fixing rod and the second fixing rod, and the precast concrete slab A grouting opening is opened at the middle position.

Preferably, the lengths of the first fixing rod and the second fixing rod extending above the precast concrete beam are equal to the thickness of the precast concrete slab.

Preferably, the inner side of the grouting opening is provided with embedded parts for hoisting.

Preferably, the reinforcement cage is a hollow structure.

Preferably, the settlement seam is a zigzag structure.

Compared with the prior art, the beneficial effect of the utility model is: the detachable composite structure layer adopts the prefabricated concrete slab laid by the prefabricated concrete beam, and there is a certain gap between the prefabricated concrete slab and the base, and then passes through The grouting port pours the grouting material under the precast concrete slab to form a composite structural layer. The existence of gaps is conducive to the flow of the grouting material between the precast concrete slab and the base layer, so as to ensure that the grouting material is evenly and fully filled in the precast concrete slab. In this way, the supporting foundation of the composite structural layer is denser, thereby ensuring the bearing capacity of the structural layer, and by setting the hollow steel cage in the precast concrete beam, the weight of the precast concrete beam is effectively reduced, which is convenient for transportation and installation , at the same time, with the settlement joint between the two precast concrete slabs, the precast concrete beam has good shock resistance, increases the service life, and adopts the hollow structure, which can also reduce the material consumption of the precast concrete beam and reduce the production cost. A settlement joint with a zigzag structure is set between two adjacent precast concrete slabs, which effectively increases the contact area between the two precast concrete slabs, thereby increasing the pulling force between the two precast concrete slabs, and reducing the settlement difference between adjacent precast concrete slabs. The flatness of the composite structural layer is effectively guaranteed, and the driving comfort of the structure is improved at the same time.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a top view of the utility model.

In the figure: 1-first through hole; 2-precast concrete slab; 3-second fixing rod; 4-first fixing rod; Beam; 9-first clamping block; 10-settlement joint; 11-second through hole; 12-grouting opening; 13-second clamping slot; 14-second clamping block.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1-2, an embodiment provided by the utility model: a detachable composite structure layer, including a base 7, a precast concrete beam 8 and a precast concrete slab 2, and one end of the precast concrete beam 8 is provided with a second A block 9, the other end of the precast concrete beam 8 is provided with a first slot 6 that matches the first block 9, and two precast concrete beams 8 are connected to each other through the first block 9 and the first slot 6. To disassemble the connection, the first block 9 and the first slot 6 are provided with a first through hole 1, and the bottom of the connection between the two prefabricated concrete beams 8 is provided with a base 7, and the middle position inside the base 7 is detachable A first fixed rod 4 is installed, and the end of the first fixed rod 4 away from the base 7 passes through the first through hole 1 of the first block 9 and the first slot 6 and extends to the position above the precast concrete beam 8 , the precast concrete beam 8 Reinforcement cages 5 are arranged at equidistant intervals in the inner part of the steel cage, and a second fixing rod 3 is pre-embedded between the two connecting reinforcement cages 5. The top of the second fixing rod 3 penetrates the precast concrete beam 8 and extends to the position above the precast concrete beam 8. Two concrete beams 8 are pre-embedded, and precast concrete slabs 2 are detachably installed above the adjacent two prefabricated concrete beams 8. One end of the precast concrete slabs 2 is provided with a second clamping block 14, and the other end of the precast concrete slabs 2 is provided with There is a second card slot 13 matched with the second block 14, and the two precast concrete slabs 2 are detachably connected to the second card slot 13 through the second block 14, and the two precast concrete slabs 2 are connected to each other. There are settlement joints 10, by adding settlement joints 10, it is convenient for the shock resistance of the composite structure, and the service life is increased. The precast concrete slab 2 is provided with a second through hole matching the first fixing rod 4 and the second fixing rod 3 directions 11, and the middle position of the precast concrete slab 2 is provided with a grouting port 12, the grouting port 12 is reserved, and the grouting material can be poured into the precast concrete slab 2, the precast concrete beam 8 and the base layer through the grouting port 12 after installation In the gaps between them, the supporting foundation of the composite structural layer is denser, thereby ensuring the bearing capacity of the structural layer. The lengths of the first fixing rod 4 and the second fixing rod 3 extending to the top of the precast concrete beam 8 are the same as those of the prefabricated concrete beam 8. The thickness of the concrete slab 2 is equal, which is convenient to ensure the smoothness of the surface of the precast concrete slab 2 after the precast concrete slab 2 is installed. It is convenient for the transportation and installation of the precast concrete slab 2. The steel cage 5 is a hollow structure, which effectively reduces the weight of the precast concrete beam 8 and is convenient for transportation and installation. At the same time, the precast concrete beam 8 has good shock resistance and increases the service life. Moreover, the hollow structure can also reduce the material consumption of the precast concrete beam 8 and reduce the production cost. The settlement joint 10 has a zigzag structure, which is convenient for increasing the contact area between the adjacent precast concrete slabs 2, thereby increasing the distance between the two precast concrete slabs 2. The pulling force is convenient to reduce the settlement difference between adjacent prefabricated concrete slabs 2 .

Working principle: when in use, the precast concrete beam 8 and the precast concrete slab 2 are first transported to the construction site, the base 7 is placed on the leveled base, and the precast concrete beam 8 is placed flat on the base 7 through the corresponding lifting equipment. Make the first block 9 connecting the two prefabricated concrete beams 8 coincide with the first through hole 1 on the first slot 6, then insert the first fixing rod 4 into the base 7 through the first through hole 1, and use In the connection state between the fixed and connected precast concrete beams 8, and so on until the entire base is covered, then the precast concrete slab 2 is lifted and transported to the precast concrete beam by using the hoisting embedded parts inside the grouting port 12 through the lifting equipment 8 above, so that the second through hole 11 on the precast concrete slab 2 is located directly above the first fixed rod 4 and the second fixed rod 3, and then slowly put the precast concrete slab 2 down so that the first fixed rod 4 and the second fixed rod The fixing rod 3 runs through the second through hole 11. After the placement is completed, the grouting material is poured into the gap between the precast concrete slab 2, the precast concrete beam 8 and the base layer through the reserved grouting opening 12, and the strength of the grouting material meets the design requirements. , pave the road surface on the upper surface of the precast concrete slab 2, and the road surface can be opened to traffic after the construction of the road surface is completed and meets the design requirements.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. A detachable composite structure layer, comprising base (7), prefabricated concrete beam (8) and prefabricated concrete slab (2), is characterized in that: one end of described prefabricated concrete beam (8) is provided with first Block (9), the other end of the precast concrete beam (8) is provided with a first slot (6) matching the first block (9), and two precast concrete beams (8) are connected through the first clip The block (9) is detachably connected to the first card slot (6), the first card block (9) and the first card slot (6) are provided with a first through hole (1), and two prefabricated The bottom of the joint of the concrete beam (8) is provided with a base (7), and a first fixed rod (4) is detachably installed at the middle position inside the base (7), and the first fixed rod (4) is far away from the base (7). ) passes through the first through hole (1) of the first clamping block (9) and the first clamping groove (6) and extends to the position above the precast concrete beam (8), the inside of the precast concrete beam (8), etc. Reinforcement cages (5) are arranged at intervals, and a second fixing rod (3) is pre-embedded between two connected reinforcement cages (5), and the top of the second fixing rod (3) penetrates the prefabricated concrete beam (8) and extends to the prefabricated concrete beam (8). The position above the concrete beam (8), two prefabricated concrete beams (8) are pre-buried, and a precast concrete slab (2) is detachably installed above the adjacent two prefabricated concrete beams (8), and the prefabricated concrete slab (2) One end of (2) is provided with a second clamping block (14), and the other end of the precast concrete slab (2) is provided with a second clamping groove (13) matching the second clamping block (14), and two prefabricated The concrete slab (2) is detachably connected with the second clamping groove (13) through the second clamping block (14), and a settlement joint (10) is provided between the connected two prefabricated concrete slabs (2), and the prefabricated concrete slab ( 2) A second through hole (11) matching the first fixing rod (4) and the second fixing rod (3) is opened on the top, and a grouting opening (12) is opened in the middle of the precast concrete slab (2) . 2. A detachable composite structural layer according to claim 1, characterized in that: the first fixing rod (4) and the second fixing rod (3) extend to the top of the precast concrete beam (8) The lengths are all equal to the thickness of the prefabricated concrete slab (2). 3. A detachable composite structural layer according to claim 1, characterized in that: the inner side of the grouting opening (12) is provided with a hoisting embedded part. 4. A detachable composite structure layer according to claim 1, characterized in that: the reinforcement cage (5) is a hollow structure. 5. A detachable composite structural layer according to claim 1, characterized in that: the settlement joint (10) is a zigzag structure.