CN217998171U - Face assembled subway station medium plate trompil structure that combines forever - Google Patents

Abstract

The utility model discloses an assembled subway station medium plate open cell structure who faces combination forever, including prefabricated ground even wall, prefabricated center pillar and middle plate structure, the middle plate structure passes through medium plate bracket structure and prefabricated ground even wall fixed connection, and prefabricated center pillar includes the prefabricated center pillar of double-deck prefabricated center pillar and individual layer, and double-deck prefabricated center pillar is located the both sides of medium plate structure trompil department, and the prefabricated center pillar of individual layer is located medium plate structure trompil department below, and is provided with prefabricated center pillar and the prefabricated center pillar of individual layer between the prefabricated center pillar of individual layer and the double-deck prefabricated center pillar longeron. The prefabricated quality of each part is controllable, the quality is uniform, the construction period is short, the construction precision is improved, the overall prefabricated assembly is realized by the profile steel combined middle plate, the construction is convenient, the stress is more stable after the prefabricated hole edge beam and the hole edge longitudinal beam splicing block are connected and reinforced, the hole edge longitudinal beam splicing block is tensioned and fastened through the prestressed reinforcement beam, and the pre-embedded angle steel is adopted for welded connection, so that the strength is high, the integrity is good, and the safety and the rapidness are realized.

Description

Face assembled subway station medium plate trompil structure that combines forever

Technical Field

The utility model belongs to underground structure engineering field especially relates to an assembled subway station medium plate trompil structure that faces combination forever.

Background

Under the support and guidance of national policies, the assembly type construction technology of high-rise buildings is developed rapidly, underground stations are still constructed mainly by cast-in-place reinforced concrete, the construction period is long, a large amount of construction waste is generated, and the national double-carbon strategy is not met.

When assembled underground station medium plate adopts prefabricated construction, need be in big division of hole of medium plate staircase department, installation building staircase structure, present medium plate trompil all adopts the prefabricated plate with other position the same specification in the position of medium plate trompil when mostly constructing, will need the position chisel of trompil to remove after the whole construction of station is accomplished again, work load and cost have been increased, very big difficulty has been caused for the construction, and medium plate stress structure after the chisel removes can change, simultaneously because the medium plate structure of chiseling hole limit department lacks the connection, lead to whole very big potential safety hazard that exists.

Therefore, a need exists for designing a permanently temporary combined opening structure for a middle plate of an assembly type subway station to solve the problems.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide an assembled subway station medium plate trompil structure that faces combination forever to medium plate trompil department construction complicated problem in solving traditional construction has eliminated the process that temporary support demolishd simultaneously, faces the combination through forever and saves cost reduction.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model provides an assembled subway station medium plate trompil structure that faces combination forever, includes that prefabricated ground is wall, prefabricated center pillar and well plate structure even, the medium plate structure pass through medium plate bracket structure with prefabricated ground is wall fixed connection, its characterized in that even: prefabricated center pillar includes double-deck prefabricated center pillar and the prefabricated center pillar of individual layer, double-deck prefabricated center pillar is located the both sides of medium plate structure trompil department, the prefabricated center pillar of individual layer is located medium plate structure trompil department below, just the prefabricated center pillar of individual layer with be provided with prefabricated well longeron between the double-deck prefabricated center pillar, medium plate structure trompil department comprises two at least prefabricated hole limit crossbeams and a plurality of shaped steel combination medium plate, prefabricated hole limit crossbeam is located a plurality of the both sides of shaped steel combination medium plate, and fixes through prestressing force muscle bundle stretch-draw, shaped steel combination medium plate is constituteed including supporting shaped steel and combination medium plate, the combination medium plate sets up the both ends of supporting shaped steel the one end of combination medium plate is provided with hole limit longeron concatenation piece, it passes through to support shaped steel hole limit longeron concatenation piece with the combination medium plate links to each other.

Preferably, the hole side longitudinal beam splicing blocks are provided with tenons and prestressed rib channels, the adjacent hole side longitudinal beam splicing blocks are spliced with each other through the tenons, and a plurality of spliced hole side longitudinal beam splicing blocks are fixed by stretching the prestressed rib bundles through the prestressed rib channels.

So set up, adopt prestressing tendons stretch-draw fastening not only to realize connecting fixedly, can also adapt to the deformation of less degree.

Preferably, pre-buried angle steel is arranged on the hole side longitudinal beam splicing blocks and is arranged on the connecting surface of the supporting section steel, so that the supporting section steel is fixedly connected with the hole side longitudinal beam splicing blocks in a welding and bolt fixing mode.

So set up, guaranteed the joint strength who supports shaped steel and prefabricated combination medium plate.

Preferably, the seams of the hole side longitudinal beam splicing blocks adjacent to each other are welded and reinforced through the embedded angle steel.

So set up, adopt pre-buried angle steel welded connection, intensity is high, and the wholeness is good.

Preferably, the middle plate structure further comprises a whole prefabricated middle plate and a half prefabricated middle plate, the whole prefabricated middle plate is installed between the prefabricated hole edge beam and the double-layer prefabricated middle upright post, and the half prefabricated middle plate is installed on two sides of the double-layer prefabricated middle upright post.

So set up, the installation of the medium plate structure of being convenient for is fixed, has reduced the requirement to the concatenation precision.

Preferably, the double-layer prefabricated middle upright post and the single-layer prefabricated middle upright post are both provided with a middle upright post bracket structure, and the prefabricated middle longitudinal beam is connected with the double-layer prefabricated middle upright post and the single-layer prefabricated middle upright post through the middle upright post bracket structure.

So set up, longeron and prefabricated center pillar are connected more firmly in can making prefabrication, form stable atress structure.

Preferably, a steel mesh is arranged on the outer side of a pre-buried angle steel at the joint of the adjacent hole side longitudinal beam splicing blocks, and the pre-buried angle steel is reinforced by pouring UHPC concrete.

So set up, carry out whole reinforcement to hole limit longeron splice piece, further improve bearing capacity.

Preferably, the joints of the middle plate structure, the prefabricated diaphragm wall and the middle plate bracket structure are filled with UHPC concrete.

So set up, the packing through high strength concrete can make the connection steelframe between each part firm.

Preferably, the section of the support section steel is H-shaped.

So set up, stable in structure, the atress deformation diminishes.

The utility model has the advantages and positive effects that:

1. according to the invention, each part is prefabricated, so that the quality of each part is controllable and uniform, the construction period is shortened, and the construction precision is improved.

2. The holing department of medium plate structure has realized whole prefabrication through shaped steel combination medium plate and has assembled, cuts off H shaped steel after assembling the completion, convenient construction to accelerate the construction progress.

3. The hole side longeron that medium plate structure trompil department set up prefabricated hole limit crossbeam and hole side longeron splice block and connect and consolidate the back formation makes whole atress more stable, and hole side longeron splice block passes through prestressing force muscle bundle stretch-draw fastening to adopt pre-buried angle steel welded connection, intensity is high, and the wholeness is good, and is safe swift.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 inventive exercise.

FIG. 1 is a schematic plan view of the assembled profile steel middle plate of the present invention;

FIG. 2 is a schematic plan view of the prefabricated center longitudinal of the present invention after installation;

fig. 3 is a schematic plan view of the whole prefabricated middle plate and half prefabricated middle plate of the present invention after installation;

FIG. 4 is a schematic drawing of a stretching construction plane of the hole-side longitudinal beam splicing block by the prestressed tendons of the present invention;

FIG. 5 is a schematic plan view of the prefabricated hole edge beam according to the present invention after installation;

FIG. 6 is a schematic plan view of the support section steel of the present invention after being removed;

FIG. 7 is a schematic cross-sectional view of the steel section composite middle plate of the present invention taken along the line I-I in FIG. 5;

FIG. 8 is a partial enlarged view of the joint of the support section steel and the hole-side longitudinal beam splice of the present invention;

FIG. 9 is a schematic cross-sectional view of the prefabricated hole plate beam of the present invention taken along line II-II of FIG. 5;

FIG. 10 is a schematic view of a partial longitudinal section taken along the line III-III in FIG. 5 of the middle plate structure opening of the present invention;

fig. 11 is a schematic view of a longitudinal beam splice block along the section IV-IV in fig. 5 after the hole side longitudinal beam splice block is fixed by the prestressed reinforcement;

fig. 12 is a schematic view of the local enlargement of the seam of the hole-side longitudinal beam splice of the present invention.

The reference numerals are explained below:

1. prefabricating a diaphragm wall; 2. prefabricating a middle plate in a whole width; 3. semi-prefabricating a middle plate; 4. prefabricating a hole edge beam; 5. prefabricating a combined middle plate; 6. supporting the section steel; 7. prefabricating a middle upright column in a single layer; 8. splicing blocks of the hole edge longitudinal beams; 9. pre-stressed tendons; 10. prefabricating a middle longitudinal beam; 11. a prestressed tendon duct; 12. a middle plate bracket structure; 13. a tenon and a mortise; 14. double-layer prefabricated middle upright columns; 15. reinforcing mesh sheets; 16. embedding angle steel in advance; 17. UHPC concrete; 18. middle standing pillar bracket structure.

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 the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

The present invention will be further explained with reference to the accompanying drawings:

example 1

As shown in fig. 1-12, an assembled subway station medium plate trompil structure that faces combination forever, including prefabricated ground even wall, prefabricated center pillar and well plate structure, the medium plate structure pass through the medium plate bracket structure with prefabricated ground even wall fixed connection, its characterized in that: prefabricated center pillar includes double-deck prefabricated center pillar and the prefabricated center pillar of individual layer, double-deck prefabricated center pillar is located the both sides of medium plate structure trompil department, the prefabricated center pillar of individual layer is located medium plate structure trompil department below, just the prefabricated center pillar of individual layer with be provided with prefabricated well longeron between the double-deck prefabricated center pillar, medium plate structure trompil department comprises two at least prefabricated hole limit crossbeams and a plurality of shaped steel combination medium plate, prefabricated hole limit crossbeam is located a plurality of the both sides of shaped steel combination medium plate, and fixes through prestressing force muscle bundle stretch-draw, shaped steel combination medium plate is constituteed including supporting shaped steel and combination medium plate, the combination medium plate sets up the both ends of supporting shaped steel the one end of combination medium plate is provided with hole limit longeron concatenation piece, it passes through to support shaped steel hole limit longeron concatenation piece with the combination medium plate links to each other.

The hole side longitudinal beam splicing blocks are provided with tenons and prestressed rib holes, the tenons and the prestressed rib holes are arranged on the hole side longitudinal beam splicing blocks, the tenon splicing blocks are adjacent to each other, the hole side longitudinal beam splicing blocks penetrate through prestressed ribs, the prestressed rib holes are tensioned and fixed, the stress can be more quickly and stably achieved through the tenon splicing blocks, the prestressed rib tensioning fastening is adopted, the connection is fixed, and the deformation of a smaller degree can be adapted.

The hole side longitudinal beam splicing blocks are provided with embedded angle steel, the embedded angle steel is arranged on the connecting faces of the supporting section steel, the supporting section steel is fixedly connected with the hole side longitudinal beam splicing blocks in a welding and bolt fixing mode, the supporting section steel is stable in structure, stress deformation is reduced, the construction precision is guaranteed, and the hole side longitudinal beam splicing blocks are adjacent to each other, the joint seam of the hole side longitudinal beam splicing blocks passes through the embedded angle steel, the embedded angle steel is welded and reinforced, the strength is high, and the integrity is good. And the outer sides of the embedded angle steels at the joint of the adjacent two hole-edge longitudinal beam splicing blocks are provided with steel bar meshes, and the holes-edge longitudinal beam splicing blocks can be integrally reinforced by pouring UHPC concrete, so that the bearing capacity is further improved.

In this embodiment, the medium plate structure still includes whole width of cloth prefabricated medium plate and half width of cloth prefabricated medium plate, whole width of cloth prefabricated medium plate is installed prefabricated hole limit crossbeam with between the prefabricated center pillar of bilayer, half width of cloth prefabricated medium plate is installed the both sides of double-deck prefabricated center pillar have so only reduced the construction degree of difficulty, and the installation of the medium plate structure of still being convenient for is fixed, has reduced the requirement to the makeup precision, though disconnected construction cycle double-deck prefabricated center pillar with all be provided with the center pillar bracket structure on the prefabricated center pillar of monolayer, longeron passes through in the prefabrication the center pillar bracket structure with double-deck prefabricated center pillar with the prefabricated center pillar of monolayer links to each other, can make longeron and prefabricated center pillar be connected more firmly like this, forms stable atress structure.

The construction process of the embodiment comprises the following steps: during construction, when a foundation pit is excavated to the middle plate structure, a middle plate bracket structure is firstly installed on a prefabricated underground diaphragm wall, then the whole prefabricated middle plate is used as a second support for installation, a profile steel combined middle plate is adopted for installation at the position of the middle plate needing to be perforated, the prefabricated combined middle plate is respectively fixed at two ends of supporting profile steel, a hole-edge longitudinal beam splicing block is also fixedly connected to the connecting end of the prefabricated combined middle plate and the supporting profile steel, embedded angle steel is fixed on the hole-edge longitudinal beam splicing block, the supporting profile steel is connected with the hole-edge longitudinal beam splicing block in a bolt connection and welding mode, excavation of the residual foundation pit is completed after the second support is built, hoisting of prefabricated middle upright columns is carried out, and double-layer prefabricated middle uprights are installed at two sides of the perforated position of the middle plate during installation of the prefabricated middle uprights, installing a single-layer prefabricated middle upright post at the position of the opening to ensure that the top of the installed single-layer prefabricated middle upright post cannot exceed a middle plate structure, then installing a prefabricated middle longitudinal beam on the prefabricated middle upright post, fixedly connecting the prefabricated middle longitudinal beam and the prefabricated middle upright post through a middle upright post bracket structure, filling UHPC (ultra high performance concrete) concrete at the joint, then hoisting the rest parts of the middle plate structure, installing a profile steel combined middle plate at the position of the opening of the middle plate structure, ensuring that the concave-convex tenon structures on the splicing blocks of the adjacent hole side longitudinal beams are connected in a matching manner, then installing prefabricated hole side cross beams at two sides of the opening of the middle plate, connecting the prefabricated hole side cross beams and the prefabricated middle longitudinal beam in a cast-in-situ manner, then penetrating prestressed tendons through the prestressed tendon pore channels on the hole side longitudinal beam splicing blocks, performing tensioning connection through the prestressed tendons to ensure that the stress structure connected with the hole side longitudinal beam splicing blocks is stable, meanwhile, pre-embedded angle steel at the joint of adjacent hole edge longitudinal beam splicing blocks is welded and fixed in a groove welding mode, then a reinforcing mesh is laid on the pre-embedded angle steel at the joint and poured through UHPC concrete, a plurality of hole edge prefabricated splicing blocks are connected into a whole, a whole hole edge longitudinal beam stress system is formed, then a whole prefabricated middle plate is installed between a prefabricated hole edge cross beam and a double-layer prefabricated middle upright post, half prefabricated middle plates are installed on two sides of the double-layer prefabricated middle upright post, the installation of a middle plate structure is completed, and finally support section steel at the opening of the middle plate is detached after the structure is stressed stably.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.

Claims (9)

1. The utility model provides an assembled subway station medium plate open pore structure faces combination forever, includes prefabricated ground even wall (1), prefabricated center pillar and well plate structure, the medium plate structure pass through medium plate bracket structure (12) with prefabricated ground even wall (1) fixed connection, its characterized in that: prefabricated center pillar includes double-deck prefabricated center pillar (14) and the prefabricated center pillar of individual layer (7), double-deck prefabricated center pillar (14) are located the both sides of middle plate structure trompil department, the prefabricated center pillar of individual layer (7) are located middle plate structure trompil department below, just prefabricated center pillar of individual layer (7) with be provided with prefabricated well longeron (10) between double-deck prefabricated center pillar (14), middle plate structure trompil department comprises two at least prefabricated hole limit crossbeams (4) and a plurality of shaped steel combination medium plate, prefabricated hole limit crossbeam (4) are located a plurality of the both sides of shaped steel combination medium plate, and fix through prestressing force tendon (9) stretch-draw, shaped steel combination medium plate is constituteed including supporting shaped steel (6) and combination medium plate, the combination medium plate sets up support the both ends of shaped steel (6) the one end of combination medium plate is provided with hole limit longeron splice (8), support shaped steel (6) pass through hole limit longeron splice (8) with the combination medium plate links to each other.

2. The assembled subway station middle plate hole structure of claim 1, wherein said hole structure comprises: the hole side longitudinal beam splicing blocks (8) are provided with tenons and tenons (13) and prestressed rib channels (11), the adjacent hole side longitudinal beam splicing blocks (8) are spliced with the tenons and the tenons (13), and the hole side longitudinal beam splicing blocks (8) are stretched and fixed by penetrating prestressed rib bundles (9) through the prestressed rib channels (11).

3. The assembled subway station middle plate hole structure of claim 2, wherein said hole structure comprises: the hole side longitudinal beam splicing blocks (8) are provided with embedded angle steel (16), the embedded angle steel (16) is arranged on the connecting surface of the supporting section steel (6), and the supporting section steel (6) is fixedly connected with the hole side longitudinal beam splicing blocks (8) in a welding and bolt fixing mode.

4. The assembled subway station middle plate hole structure of claim 3, wherein said hole structure comprises: and the joints of the adjacent hole-edge longitudinal beam splicing blocks are welded and reinforced through the embedded angle steel (16).

5. The permanently-combined plate opening structure in the assembled subway station as claimed in claim 1, wherein: the middle plate structure further comprises a whole prefabricated middle plate (2) and a half prefabricated middle plate (3), the whole prefabricated middle plate (2) is installed between the prefabricated hole edge cross beam (4) and the double-layer prefabricated middle upright post (14), and the half prefabricated middle plate (3) is installed on two sides of the double-layer prefabricated middle upright post (14).

6. The assembled subway station middle plate hole structure of claim 1, wherein said hole structure comprises: double-deck prefabricated center pillar (14) with all be provided with center pillar bracket structure (18) on the prefabricated center pillar of individual layer (7), prefabricated center sill (10) pass through center pillar bracket structure (18) with double-deck prefabricated center pillar (14) with the prefabricated center pillar of individual layer (7) link to each other.

7. The assembled subway station middle plate hole structure that faces forever of claim 4 combines, characterized in that: and a reinforcing mesh (15) is arranged on the outer side of the embedded angle steel (16) at the joint of the two adjacent hole side longitudinal beam splicing blocks (8), and is reinforced by pouring UHPC concrete (17).

8. The assembled subway station middle plate hole structure of claim 1, wherein said hole structure comprises: filling by UHPC concrete (17) at the joint of the middle plate structure, the prefabricated diaphragm wall (1) and the middle plate bracket structure (12).

9. The assembled subway station middle plate hole structure of claim 1, wherein said hole structure comprises: the section of the supporting section steel (6) is H-shaped.

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