CN114351755A - Combined shell pipe gallery top L-shaped joint and construction method thereof - Google Patents
Combined shell pipe gallery top L-shaped joint and construction method thereof Download PDFInfo
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- CN114351755A CN114351755A CN202111583438.3A CN202111583438A CN114351755A CN 114351755 A CN114351755 A CN 114351755A CN 202111583438 A CN202111583438 A CN 202111583438A CN 114351755 A CN114351755 A CN 114351755A
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- 230000002787 reinforcement Effects 0.000 claims abstract description 21
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 46
- 238000009826 distribution Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 18
- 239000011241 protective layer Substances 0.000 claims description 8
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- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009415 formwork Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 13
- 238000011900 installation process Methods 0.000 description 5
- 239000002131 composite material Substances 0.000 description 2
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- 238000005265 energy consumption Methods 0.000 description 1
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Abstract
The invention discloses a combined shell pipe gallery top L-shaped node and a construction method thereof. And after splicing, pouring concrete on the construction site to complete the structural construction of the L-shaped node. The combined shell top plate consists of a steel reinforcement framework, a connecting piece and a high-strength bottom template. The combined shell side wall plate is composed of a steel reinforcement framework, a counter-pull connecting piece and inner and outer side high-strength templates. According to the invention, the top plate and the side wall plate are connected by adopting cast-in-place concrete, and the connecting position has no seam and a good waterproof effect; the mass of the combined shell component is only one fifth of the weight of the whole prefabricated component, and the transportation cost of the component is low; the concrete section and the steel bar connection mode of the cast-in-place member are not changed by the node, and the integrity is kept consistent with the cast-in-place property. Roof and side wall board link together high-strength formwork material and framework of steel reinforcement through the connecting piece, and the standardized degree of component is high.
Description
Technical Field
The invention belongs to the technical field of construction engineering construction, and is mainly used for construction of a pipe gallery structure.
Background
The city of China now enters the golden period of underground space utilization and development, and the construction of urban underground pipe galleries is rapidly developed. At present, a large amount of cast-in-place modes are adopted in the structure construction stage, so that the problems of large wet operation amount of a construction site, large water resource consumption, obvious low industrialization level, low construction efficiency, high overall energy consumption of the industry and the like are caused, and a new construction method is urgently needed to replace the traditional cast-in-place method.
The section form of the pipe gallery is single, which creates conditions for standardized production. But as underground structure, its waterproof requirement is higher, and this also brings certain challenge for the application of assembled piping lane.
The most central part of the assembly construction technology is the node connection between the components. The existing assembled pipe gallery node connection technology has three main problems in general: 1, the assembled member has more joints and poor waterproof effect; 2, the construction cost is higher than that of cast-in-place, and the main reasons are heavy components and high transportation cost. 3, the nodal connection of assembled piping lane adopts modes such as prestressing force, bolt, sleeve more, compares cast-in-place wholeness poor.
Disclosure of Invention
The invention aims to design an L-shaped node at the top of a combined shell pipe gallery, which is used for overcoming the problems of more joints, poor waterproof effect, heavy components, high transportation cost and poor overall performance existing in the assembly type construction in the background art.
In order to achieve the purpose, the technical scheme adopted by the invention is that the L-shaped node at the top of the combined shell pipe gallery comprises a combined shell top plate and a combined shell side wall plate which are prefabricated in a factory, and the combined shell top plate and the combined shell side wall plate are spliced at a construction site to form the L-shaped node at the top of the combined shell pipe gallery. And after splicing, pouring concrete on the construction site to complete the structural construction of the L-shaped node. The combined shell top plate consists of a steel reinforcement framework, a connecting piece and a high-strength bottom template. The combined shell side wall plate is composed of a steel reinforcement framework, a counter-pull connecting piece and inner and outer side high-strength templates.
Furthermore, a high-strength bottom template of the combined shell top plate is arranged on the outer side of the steel reinforcement framework, occupies the position of the cast-in-place structure protection layer, and serves as a template in the concrete pouring process to bear the lateral pressure in the concrete pouring process. After the concrete pouring is finished, the high-strength bottom template is used as a reinforcing steel bar protection layer to participate in stress.
Furthermore, the inner and outer high-strength templates of the combined shell side wall plate are arranged on the outer side of the steel reinforcement framework, occupy the position of the cast-in-place structure protective layer, and serve as the inner and outer templates in the concrete pouring process to bear the lateral pressure in the concrete pouring process. After the concrete pouring is finished, the high-strength template is used as a reinforcing steel bar protection layer to participate in stress.
Furthermore, the size of the concrete outer contour of the top plate of the combined shell is consistent with that of a common cast-in-place member; the size of the concrete outer contour of the combined shell side wall plate is consistent with that of a common cast-in-place member.
Furthermore, in the side wall plates of the adjacent combined shell pipe gallery, the distributed reinforcing steel bars of the side wall plates are in lap joint with the distributed reinforcing steel bars of the adjacent side wall plates; the reinforcing bar is distributed to the side wall board in the component manufacturing process, considers adjacent side wall board distribution reinforcing bar position, and side wall board distribution reinforcing bar makes dodges. The high-strength templates of the side wall plate inner and outer side combination shells of the adjacent members are spliced to form the vertical seams of the side wall plates.
Further, the method for constructing the L-shaped node at the top of the combined shell pipe gallery is as follows, S1 produces the top plate of the combined shell pipe gallery in a factory, and the top plate of the combined shell pipe gallery is composed of top plate distribution steel bars, top plate truss steel bars, top plate stress steel bars, a top plate integrated connecting piece and a top plate combined shell high-strength bottom template. The top plate stress steel bars are of U-shaped structures, and the mounting positions of the top plate stress steel bars are controlled through the top plate integrated connecting piece.
S2 the side wall board of the combined shell and tube gallery is produced in a factory, and the side wall board of the combined shell and tube gallery is composed of a high-strength template of a combined shell on the inner side of the side wall board, a high-strength template of a combined shell on the outer side of the side wall board, distributed reinforcing steel bars of adjacent side wall boards, stressed reinforcing steel bars of the side wall boards and oppositely-pulled connecting pieces of the side wall boards.
The reinforcing steel bar framework of the side wall plate is formed by the side wall plate distributed reinforcing steel bars, the adjacent side wall plate distributed reinforcing steel bars and the side wall plate stressed reinforcing steel bars. The steel reinforcement framework, the high-strength template of the combined shell on the inner side of the side wall board and the high-strength template of the combined shell on the outer side of the side wall board form a whole through the opposite-pulling connecting pieces of the side wall board. The side wall board plays the effect of fixed steel reinforcement skeleton to drawing the connecting piece, bears the side pressure that concrete placement process produced to the side wall board simultaneously.
The side wall plate stress steel bars are U-shaped, and the installation positions of the side wall plate stress steel bars are controlled through the side wall plate opposite-pulling connecting pieces.
And after the construction of the S3 member is completed, hoisting the combined shell and tube gallery side wall plate, and fixing the side wall plate by using a side wall plate supporting system.
And S4, installing a top plate supporting system and hoisting the top plate of the combined shell pipe gallery.
S5, installing axillary corner reinforcing steel bars and corner reinforcing steel bars on site;
s6 installs adjacent combination shell piping lane roof and combination shell piping lane boundary plate, and adjacent boundary plate concatenation forms the boundary plate perps.
S7, pouring roof concrete, and connecting adjacent roofs through roof post-cast plate strips; and pouring side wallboard concrete, and finishing the connection of the adjacent side wallboards through the lap joint of the side wallboard distribution reinforcing steel bars and the adjacent side wallboard distribution reinforcing steel bars. And finishing the construction of the node structure.
Compared with the prior art, the invention provides the L-shaped node at the top of the combined shell pipe gallery, the node adopts cast-in-place concrete to connect the top plate and the side wall plate, the connecting position has no seam, and the waterproof effect is good; the mass of the combined shell component is only one fifth of the weight of the whole prefabricated component, and the transportation cost of the component is low; the concrete section and the steel bar connection mode of the cast-in-place member are not changed by the node, and the integrity is kept consistent with the cast-in-place property. Roof and side wall board link together high-strength template material and framework of steel reinforcement through the connecting piece, and the standardized degree of component is high, has industrial production's design basis.
Drawings
Fig. 1 is an elevation view of a top L-shaped node of a composite shell tube lane.
Fig. 2 combined shell tube lane top plate.
Fig. 3 a combination shell tube lane edge wall panel.
Fig. 4 combined shell tube lane top L-shaped node installation process 1.
Fig. 5 combined shell tube lane top L-shaped node installation process 2.
Fig. 6 combined shell tube lane top L-shaped node installation process 3.
Fig. 7 combined shell tube lane top L-shaped node installation process 4.
Fig. 8 is a plan view of a top L-shaped node of a composite shell tube lane.
Fig. 9 combined shell tube lane top L-shaped node installation process 5.
Description of the drawings: 1. a top plate of the combined shell; 2. assembling shell side wall boards; 3. axillary angle reinforcing steel bars; 4. reinforcing the corner of the steel bar; 5. a sidewall panel support system; 6. a roof support system; 7. side wall panel perps; 8. post-pouring of the top plate; 9. reinforcing steel bars are distributed on the top plate; 10. top plate stressed steel bars; 11. roof truss ribs; 12. a top plate integrated connector; 13. a top plate combined shell high-strength bottom template; 14. the stressed steel bar of the side wall plate; 15a, distributing steel bars 1 on the side wall plates; 15b, distributing reinforcing steel bars 2 on the adjacent side wall plates; 16. the inner side of the side wall plate is provided with a shell high-strength template; 17. the outer side of the side wall plate is combined with a shell high-strength template; 18. the side wall plates are oppositely pulled to form connecting pieces;
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples.
Through comprehensive summary and intensive research on the prior art, the invention mainly solves the following problems:
(1) the invention provides an L-shaped node at the top of a combined shell pipe gallery, which is characterized in that a top plate and a side wall plate are connected by cast-in-place concrete, and the connecting position has no seam, so that the waterproof effect is good;
(2) the mass of the combined shell component is only one fifth of the weight of the whole prefabricated component, and the transportation cost of the component is low;
(3) the concrete section and the steel bar connection mode of the cast-in-place member are not changed by the node, and the integrity is kept consistent with the cast-in-place property.
(4) Roof and side wall board link together high-strength template material and framework of steel reinforcement through the connecting piece, and the standardized degree of component is high, has industrial production's design basis.
The main body part of the invention is formed by splicing a combined shell top plate and a combined shell side wall plate prefabricated in a factory on a construction site to form a combined shell pipe gallery top L-shaped node. And after splicing, pouring concrete on the construction site to complete the construction of the node structure. The top plate consists of a steel reinforcement framework, a connecting piece and a high-strength bottom template. The side wall plate consists of a steel reinforcement framework, a counter-pull connecting piece and inner and outer high-strength templates.
1. Pipe gallery top L type node comprises at prefabricated combination shell roof and combination shell side wall board in the mill, forms combination shell pipe gallery top L type node at the job site concatenation.
2. The high-strength bottom template of the top plate is arranged on the outer side of the steel reinforcement framework, occupies the position of the cast-in-place structure protective layer, and serves as a template in the concrete pouring process to bear the lateral pressure in the concrete pouring process. After the concrete pouring is finished, the high-strength bottom template is used as a reinforcing steel bar protection layer to participate in stress. The concrete outline size of the top plate is consistent with that of a common cast-in-place member.
3. The inside and outside high-strength templates of the side wall plates are arranged on the outside of the steel reinforcement framework, occupy the position of the cast-in-place structure protective layer, and serve as the inside and outside templates in the concrete pouring process to bear the lateral pressure in the concrete pouring process. After the concrete pouring is finished, the high-strength template is used as a reinforcing steel bar protection layer to participate in stress. The concrete outline size of the side wall plate is consistent with that of a common cast-in-place member.
4. In adjacent combination shell piping lane boundary plate, boundary plate distribution reinforcing bar 15a adopts overlap joint (direct overlap joint) with adjacent boundary plate distribution reinforcing bar 15 b. Side wall board distribution reinforcing bar 15a considers adjacent side wall board distribution reinforcing bar 15b position in the component manufacturing process, and the reinforcing bar is made and is dodged. The high-strength templates of the side wall plate inner and outer side combination shells of the adjacent members are spliced to form a side wall plate vertical seam 7.
5. Construction process
(1) As shown in fig. 2: at the production combination shell pipe gallery roof of mill, combination shell pipe gallery roof comprises roof distribution reinforcing bar 9, roof truss muscle 11, roof atress reinforcing bar 10, roof integration connecting piece 12, roof combination shell high-strength bottom formwork 13. The top plate stress steel bar 10 is in a U shape. The high-strength template for the axillary corner parts of the pipe gallery is produced in the top plate component. The thickness of the top plate combined shell high-strength bottom template 13 is 2cm, and the protective layer of the top plate stressed steel bar 10 is 3cm, so that the clear distance between the top plate combined shell high-strength bottom template 13 and the top plate stressed steel bar 10 is 1 cm. This position is controlled by the top plate integral connector 12.
(2) As shown in fig. 3: the combined shell and tube gallery side wall plate is produced in a factory and consists of a side wall plate inner side combined shell high-strength template 16, a side wall plate outer side combined shell high-strength template 17, side wall plate distribution reinforcing steel bars 15a, adjacent side wall plate distribution reinforcing steel bars 15b, side wall plate stress reinforcing steel bars 14 and side wall plate opposite-pulling connecting pieces 18.
The reinforcing steel bar framework of the side wall plate is composed of side wall plate distributed reinforcing steel bars 15a, adjacent side wall plate distributed reinforcing steel bars 15b and side wall plate stress reinforcing steel bars 14. The steel reinforcement framework, the high-strength template 16 of the combined shell at the inner side of the side wall board and the high-strength template 17 of the combined shell at the outer side of the side wall board are integrated through the opposite-pulling connecting piece 18 of the side wall board.
The wallboard counter-pull connector 18 plays a role in fixing the steel reinforcement framework and bears the lateral pressure generated by the wallboard in the concrete pouring process.
The wallboard stressed steel bar 14 is in a U shape. The thickness of the high-strength template of the combined shell of the inner side wall plate and the outer side wall plate is 2 cm. Because the protective layer of the stressed reinforcing steel bars on the inner side of the side wall board is 3cm, the clear distance between the high-strength template 16 of the combined shell on the inner side of the side wall board and the stressed reinforcing steel bars on the inner side of the side wall board is 1 cm. Because the protective layer of the outside atress reinforcing bar of side wall board is 5cm, the clear distance of side wall board outside combination shell high-strength formwork 17 and the outside atress reinforcing bar of side wall board is 3 cm. This position is controlled by the edge panel pull-up connector 18.
(3) FIG. 4: after the component construction is finished, the combined shell and tube gallery side wall plate is hoisted firstly, and the side wall plate is fixed by the side wall plate supporting system 5.
(4) Fig. 5 and 6: and installing a top plate supporting system 6 and hoisting the top plate of the combined shell pipe gallery.
(5) FIG. 7: installing axillary angle reinforcing steel bars 3 and corner reinforcing steel bars 4 on site;
(6) FIG. 8: installing adjacent combination shell pipe gallery roof and combination shell pipe gallery boundary plate, adjacent boundary plate concatenation forms boundary plate perps 7.
(7) FIG. 9: pouring top plate concrete, and connecting adjacent top plates through top plate post-cast plate belts 8; and pouring side wallboard concrete, and completing the connection of the adjacent side wallboards through the lap joint of the side wallboard distribution reinforcing steel bars 15a and the adjacent side wallboard distribution reinforcing steel bars 15 b. And finishing the construction of the node structure.
Claims (6)
1. Combination shell piping lane top L type node, its characterized in that: the combined shell top plate and the combined shell side wall plate are spliced on a construction site to form a combined shell pipe gallery top L-shaped node; after splicing, pouring concrete on a construction site to complete the structural construction of the L-shaped node; the combined shell top plate consists of a steel reinforcement framework, a connecting piece and a high-strength bottom template; the combined shell side wall plate is composed of a steel reinforcement framework, a counter-pull connecting piece and inner and outer side high-strength templates.
2. The combination shell tube lane top L type node of claim 1, characterized in that: the high-strength bottom template of the combined shell top plate is arranged on the outer side of the steel reinforcement framework, occupies the position of the cast-in-place structure protective layer, and is used as a template in the concrete pouring process to bear the lateral pressure in the concrete pouring process; after the concrete pouring is finished, the high-strength bottom template is used as a reinforcing steel bar protection layer to participate in stress.
3. The combination shell tube lane top L type node of claim 1, characterized in that: the inner and outer high-strength templates of the combined shell side wall plate are arranged on the outer side of the steel reinforcement framework, occupy the position of a cast-in-place structure protective layer, and serve as the inner and outer templates in the concrete pouring process to bear the lateral pressure in the concrete pouring process; after the concrete pouring is finished, the high-strength template is used as a reinforcing steel bar protection layer to participate in stress.
4. The combination shell tube lane top L type node of claim 1, characterized in that: the size of the concrete outer contour of the top plate of the combined shell is consistent with that of the cast-in-place member; the size of the concrete outer contour of the combined shell side wall plate is consistent with that of the cast-in-place member.
5. The combination shell tube lane top L type node of claim 1, characterized in that: in the adjacent combined shell pipe gallery side wall plates, the side wall plate distributed reinforcing steel bars are in lap joint with the adjacent side wall plate distributed reinforcing steel bars; in the manufacturing process of the component, the positions of the distributed steel bars of the adjacent side wall plates are considered, and the distributed steel bars of the side wall plates are avoided; the high-strength templates of the side wall plate inner and outer side combination shells of the adjacent members are spliced to form the vertical seams of the side wall plates.
6. The combination shell tube lane top L-shaped node of any one of claims 1-5, wherein: the construction method of the L-shaped node at the top of the combined shell pipe gallery comprises the following steps that S1 a combined shell pipe gallery top plate is produced in a factory, and the combined shell pipe gallery top plate consists of top plate distribution reinforcing steel bars, top plate truss reinforcing steel bars, top plate stress reinforcing steel bars, a top plate integrated connecting piece and a top plate combined shell high-strength bottom template; the top plate stress steel bar is of a U-shaped structure, and the mounting position of the top plate stress steel bar is controlled through the top plate integrated connecting piece;
s2, producing a combined shell and tube gallery side wall plate in a factory, wherein the combined shell and tube gallery side wall plate consists of a combined shell high-strength template at the inner side of the side wall plate, a combined shell high-strength template at the outer side of the side wall plate, side wall plate distribution steel bars, adjacent side wall plate distribution steel bars, side wall plate stress steel bars and side wall plate opposite-pulling connecting pieces;
the side wall plate distributed reinforcing steel bars, the adjacent side wall plate distributed reinforcing steel bars and the side wall plate stressed reinforcing steel bars form a reinforcing steel bar framework of the side wall plate; the reinforcing steel bar framework, the high-strength template of the combined shell at the inner side of the side wall plate and the high-strength template of the combined shell at the outer side of the side wall plate are integrated through the opposite-pulling connecting pieces of the side wall plate; the side wall plate opposite-pulling connecting piece plays a role in fixing a steel bar framework and bears the side pressure generated by the side wall plate in the concrete pouring process;
the stressed steel bars of the side wall plate are U-shaped, and the installation positions of the stressed steel bars of the side wall plate are controlled through the opposite pull connecting pieces of the side wall plate;
after the construction of the S3 member is completed, firstly hoisting the side wall plate of the combined shell and tube gallery, and fixing the side wall plate by using a side wall plate supporting system;
s4, installing a top plate supporting system and hoisting a top plate of the combined shell pipe gallery;
s5, installing axillary corner reinforcing steel bars and corner reinforcing steel bars on site;
s6, installing adjacent combined shell pipe gallery top plates and combined shell pipe gallery side wall plates, and splicing the adjacent side wall plates to form side wall plate perps;
s7, pouring roof concrete, and connecting adjacent roofs through roof post-cast plate strips; pouring side wallboard concrete, and completing the connection of the adjacent side wallboards through the lap joint of the side wallboard distribution steel bars and the adjacent side wallboard distribution steel bars; and finishing the construction of the node structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111583438.3A CN114351755A (en) | 2021-12-22 | 2021-12-22 | Combined shell pipe gallery top L-shaped joint and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111583438.3A CN114351755A (en) | 2021-12-22 | 2021-12-22 | Combined shell pipe gallery top L-shaped joint and construction method thereof |
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| CN106245674A (en) * | 2016-08-01 | 2016-12-21 | 中建五局第三建设有限公司 | Hollow wallboard mixes prefabricated assembled pipe gallery and construction method thereof |
| WO2018072366A1 (en) * | 2016-10-20 | 2018-04-26 | 北京工业大学 | Self-resetting and assembly-type flexible anti-seismic structure for subway station |
| CN108005116A (en) * | 2017-12-15 | 2018-05-08 | 哈尔滨鸿盛房屋节能体系研发中心 | Assembled cast-in-place concrete structure non-dismantling formwork piping lane |
| CN108086353A (en) * | 2017-12-05 | 2018-05-29 | 中建五局第三建设有限公司 | A kind of hollow wallboard spliced with cast-in-place hidden girder mixes prefabricated assembled pipe gallery and its construction method |
| JP2018168561A (en) * | 2017-03-29 | 2018-11-01 | 新日鐵住金株式会社 | Underground structure and method of constructing underground structure |
| CN108797638A (en) * | 2018-06-01 | 2018-11-13 | 中国建筑股份有限公司 | Integrated assembled piping lane based on composite bottom board and its construction method |
| CN109797777A (en) * | 2019-03-18 | 2019-05-24 | 江西万和建筑科技有限公司 | Assembled is constructed from sealing underground pipe gallery and construction method |
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2021
- 2021-12-22 CN CN202111583438.3A patent/CN114351755A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106245674A (en) * | 2016-08-01 | 2016-12-21 | 中建五局第三建设有限公司 | Hollow wallboard mixes prefabricated assembled pipe gallery and construction method thereof |
| WO2018072366A1 (en) * | 2016-10-20 | 2018-04-26 | 北京工业大学 | Self-resetting and assembly-type flexible anti-seismic structure for subway station |
| JP2018168561A (en) * | 2017-03-29 | 2018-11-01 | 新日鐵住金株式会社 | Underground structure and method of constructing underground structure |
| CN108086353A (en) * | 2017-12-05 | 2018-05-29 | 中建五局第三建设有限公司 | A kind of hollow wallboard spliced with cast-in-place hidden girder mixes prefabricated assembled pipe gallery and its construction method |
| CN108005116A (en) * | 2017-12-15 | 2018-05-08 | 哈尔滨鸿盛房屋节能体系研发中心 | Assembled cast-in-place concrete structure non-dismantling formwork piping lane |
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Application publication date: 20220415 |
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