CN110004844B - Rectangular section underground passage wall structure and underground passage reinforcing steel bar skeleton paving method - Google Patents
Rectangular section underground passage wall structure and underground passage reinforcing steel bar skeleton paving method Download PDFInfo
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- CN110004844B CN110004844B CN201910397357.0A CN201910397357A CN110004844B CN 110004844 B CN110004844 B CN 110004844B CN 201910397357 A CN201910397357 A CN 201910397357A CN 110004844 B CN110004844 B CN 110004844B
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- underground passage
- steel bars
- top plate
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- longitudinal distribution
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- 229910001294 Reinforcing steel Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 91
- 239000010959 steel Substances 0.000 claims abstract description 91
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 230000002787 reinforcement Effects 0.000 claims abstract description 14
- 238000007665 sagging Methods 0.000 claims abstract description 5
- 210000000988 bone and bone Anatomy 0.000 claims 2
- 210000003205 muscle Anatomy 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 241001669679 Eleotris Species 0.000 description 2
- 101100366060 Caenorhabditis elegans snap-29 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Reinforcement Elements For Buildings (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A rectangular section underground passage reinforcing steel bar skeleton laying method aims at solving the technical problem that reinforcing steel bars at the top of a culvert are easy to sag. The method comprises the steps that arch truss supports are adopted to support longitudinally distributed steel bars on the top layer of a top plate which is arranged at the easily-drooping part of a rectangular section underground passage, and the arch truss supports are fixed together with support steel bars embedded in side walls; the longitudinally distributed steel bars at the bottom layer of the top plate are lapped on the lower cross beam supported by the arched truss. The utility model provides a rectangle section underground passage wall structure includes concrete and framework of steel reinforcement, and the framework of steel reinforcement includes the arch truss support that is in the same place with burying the reinforcing bar joint that is fixed in the side wall to be in the same place with the roof top layer longitudinal distribution reinforcing bar that supports, roof bottom longitudinal distribution reinforcing bar is set up and is fixed on the bottom beam that the arch truss supported. The steel bars at the top of the underground passage can be prevented from sagging, and the arched truss support also becomes a part of the steel bars in the underground passage with the rectangular cross section.
Description
Technical Field
The invention relates to the technical field of underpass railway culvert construction, in particular to a rectangular section underground passage wall structure and a rectangular section underground passage reinforcing steel bar skeleton paving method.
Background
The existing business line railway mainly comprises sleeper paved on ballast and steel rail installed on sleeper. The business line railway is also provided with a track circuit, when the track is in an occupied state, the circuit between two tracks in the track occupied section is in a short circuit state, and a red light strip is displayed on a console; when the track is in an unoccupied state, the circuit between the two tracks is in an open circuit state, and the track occupying lamp on the console is extinguished; when the track circuit loses the function of detecting the track occupation state, the section on the control console displays a white light band. Based on this, station control personnel can know the track occupation information through the control console.
The construction of the underpass railway culvert has the following difficulties: the space is limited, particularly the steel bar binding space at the top of the culvert is limited, so that the steel bars are not conveniently bound; may affect the operation of the business line, e.g., affect equipment, circuitry, etc.
In order to avoid unsupported sagging of the top steel bars of the culvert, in the prior art, after the concrete lining trolley is adopted in place, the elevation and the center of the concrete trolley are adjusted, and then the top plate steel bars are arranged above the concrete trolley, so that the steel bar binding space at the top of the culvert is further limited. According to statistics, 3.5 days are required for binding a group of roof steel bars, and after the concrete is cured until the strength reaches 100%, the lining trolley can be demolded, and 3.5 days are required, so that a great amount of time is wasted. In addition, the steel bar binding space at the corner of the culvert is smaller, and the steel bar binding space is reinforced by adding steel bars, so that the upper track circuit can be possibly touched, and the situation that the track is not occupied by a vehicle but red light strips are displayed is formed.
Disclosure of Invention
The invention aims to provide a rectangular section underground passage wall structure and an underground passage reinforcing steel bar skeleton paving method, so as to solve the technical problem that reinforcing steel bars at the top of a culvert are easy to sag when the existing underpass railway type culvert is constructed.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for paving a rectangular section underground passage reinforcing steel bar skeleton is designed, which comprises the following steps:
the arched truss supports are adopted to support the top plate top layer longitudinal distribution steel bars arranged at the easily-drooping part of the rectangular section underground passage, and the arched truss supports are fixed together with the support steel bars buried in the side walls;
and longitudinally distributing steel bars at the bottom layer of the top plate are lapped on the lower cross beam supported by the arched truss.
Preferably, the arched truss support is fixed with the top layer longitudinal distribution steel bars of the top plate supported by the arched truss support, and the arched truss support is fixed with the bottom layer longitudinal distribution steel bars of the top plate.
Preferably, before the arched truss support is provided, the method further comprises: constructing a bottom plate and a short side wall of a rectangular section underground passage, and embedding reinforcing steel bar connectors for supporting upright posts and side wall vertical reinforcing steel bars in the short side wall;
and fixing two ends of the top plate top layer transverse main bars of the underground passage with side wall vertical bars at two sides, and arranging top plate top layer longitudinal distribution bars at the easily-drooping part of the underground passage with the rectangular cross section, wherein the top plate top layer longitudinal distribution bars are fixed with the top plate top layer transverse main bars.
Preferably, after the arched truss support is arranged, the longitudinally distributed steel bars on the top plate of the position of the rectangular section underground passage, which is not easy to droop, are distributed, and the longitudinally distributed steel bars on the top plate are fixed with the transverse main bars on the top plate.
Preferably, after the longitudinal distribution steel bars of the bottom plate are arranged, a transverse main bar of the bottom plate is arranged below the longitudinal distribution steel bars of the bottom plate, and the transverse main bar of the bottom plate and the longitudinal distribution steel bars of the bottom plate are fixed together.
Preferably, two adjacent arched truss supports are spaced apart by 2 m.
Preferably, the rectangular section of the rectangular section underground passage is 6400mm multiplied by 3600mm, the thickness of the bottom plate is 500mm, the thickness of the top plate is 500mm, the thickness of the side wall is 450mm, and the arch height of the arch truss support of the underground passage is 330mm.
Furthermore, the easily-drooping parts of the rectangular section underground passage are respectively in 1.5m areas on two sides of the central line of the rectangular section underground passage.
The utility model provides a rectangle section underground passage wall structure, includes concrete and reinforcement cage, reinforcement cage includes the vertical reinforcing bar of side wall, the horizontal main muscle of roof top layer, the vertical distribution reinforcing bar of roof bottom, the horizontal main muscle of roof bottom and arch truss support, arch truss support is in the same place with the reinforcing bar joint that buries in the side wall to it is together fixed with the vertical distribution reinforcing bar of roof top layer that supports, the vertical distribution reinforcing bar of roof bottom is set up and is fixed on the truss underbeam that arch truss supported.
Preferably, the arched truss support is welded and fixed with the steel bar joint, the arched truss support is welded and fixed with longitudinally distributed steel bars on the top layer of the top plate supported by the arched truss support, and longitudinally distributed steel bars on the bottom layer of the top plate are welded and fixed with the arched truss support.
Further, in the extending direction of the rectangular section underground passage, one of the arch truss supports is provided every 2 m.
The beneficial effects of the invention are as follows: the arch truss support is adopted, so that the sagging of the steel bars at the top of the underground passage can be avoided, and the arch truss support also becomes a part of the steel bars in the underground passage with the rectangular cross section. Compared with the existing mode of adopting the concrete lining trolley to prevent the steel bars at the top of the underground passage from sagging, the steel bar binding space is large, the construction period is short, the steel bar reinforcement is not required to be additionally arranged in the process of turning angles, and the secondary problem caused by the steel bar binding space is avoided.
Drawings
FIG. 1 is a schematic view of a rectangular section underground passage according to the present invention.
FIG. 2 is a schematic view of another steel bar structure of a rectangular section underground passage according to the present invention.
In the figure, 1-bottom plate, 21-short side wall, 211-side wall vertical steel bar, 212-side wall vertical steel bar, 213-steel bar joint for supporting column, 22-short side wall, 221-side wall vertical steel bar, 222-side wall vertical steel bar, 223-steel bar joint for supporting column, 41-top plate top layer transverse main steel bar, 42-top plate top layer longitudinal distribution steel bar, 43-top plate bottom layer longitudinal distribution steel bar, 44-top plate bottom layer transverse main steel bar and 5-arch truss support.
Detailed Description
The following examples are given to illustrate the invention in detail, but are not intended to limit the scope of the invention in any way.
Example 1: a method for paving a rectangular section underground passage reinforcing steel bar skeleton comprises the following steps:
the arched truss support 5 is adopted to be distributed on the top plate top layer longitudinal distribution steel bars 42 of the easily-drooping part of the rectangular section underground passage, and the arched truss support 5 is fixed with the support steel bars embedded in the side walls; referring to FIGS. 1-2, the rectangular section of a rectangular section underground passage is 6400mm×3600mm, the thickness of the bottom plate is 500mm, the thickness of the top plate is 500mm, and the thickness of the side wall is 450mm. The transverse main bars of the top plate top layer are phi 22 steel bars, the longitudinal distribution bars 42 of the top plate top layer are phi 12 steel bars, and the easily-drooping part of the rectangular section underground passage can be considered to be in the 1.5m regions on two sides of the central line of the rectangular section underground passage. The arch truss support 5 is intended to support the top sheet top longitudinally distributed rebar 42 in this area. The support bars embedded in the side wall can be side wall vertical bars 211 and 221, or alternatively embedded support column bar joints 213 and 223. The arched truss support 5 and the support steel bars can be fixed in a welding mode.
The longitudinally distributed steel bars 43 on the bottom layer of the top plate are lapped on the lower cross beam of the arched truss support 5.
Example 2: a method for paving a rectangular section underground passage reinforcing steel bar skeleton comprises the following steps:
constructing a bottom plate, a short side wall 21 and a short side wall 22 of a rectangular section underground passage, embedding a reinforcing steel bar joint 213 for a supporting column, side wall vertical reinforcing steel bars 211 and side wall vertical reinforcing steel bars 212 in the short side wall 21, embedding a reinforcing steel bar joint 223 for a supporting column, side wall vertical reinforcing steel bars 221 and side wall vertical reinforcing steel bars 222 in the short side wall 22, wherein the reinforcing steel bars 211 for the side wall, the reinforcing steel bars 212 for the side wall vertical reinforcing steel bars 221 and the reinforcing steel bars 222 for the side wall can adopt phi 22 reinforcing steel bars, and the reinforcing steel bar joint 213 for the supporting column and the reinforcing steel bar joint 223 for the supporting column can adopt phi 28 reinforcing steel bars;
welding and fixing two ends of a top plate top layer transverse main rib 41 of the underground passage with side wall vertical steel bars 211 and 221 on two sides, arranging top plate top layer longitudinal distribution steel bars 42 at the easily-drooping part of the underground passage with rectangular cross section, and welding and fixing the top plate top layer longitudinal distribution steel bars 42 with the top plate top layer transverse main rib 41;
the arch truss support 5 is arranged below the top plate top layer longitudinal distribution steel bars 42, the arch truss support 5 is welded and fixed with the steel bar joints 213 for the support columns on two sides and the steel bar joints 223 for the support columns, and can also be welded and fixed with the side wall vertical steel bars 212 and 222 according to the needs, and welded and fixed with the top plate top layer longitudinal distribution steel bars 42 in an L-shaped connection mode;
distributing longitudinally distributed steel bars 42 on the top layer of the top plate of the position which is not easy to sag of the rectangular section underground passage, and welding and fixing the longitudinally distributed steel bars 42 on the top layer of the top plate with transverse main steel bars 41 on the top layer of the top plate; the longitudinal distribution steel bars 43 of the top plate bottom layer are distributed on the truss lower cross beam of the arched truss support 5, the longitudinal distribution steel bars 43 of the top plate bottom layer are welded and fixed with the truss lower cross beam of the arched truss support 5, the transverse main steel bars 44 of the top plate bottom layer are arranged below the longitudinal distribution steel bars 43 of the top plate bottom layer, the transverse main steel bars 44 of the top plate bottom layer are welded and fixed with the longitudinal distribution steel bars 43 of the top plate bottom layer, and two ends of the transverse main steel bars 44 of the top plate bottom layer are welded and fixed with the vertical steel bars 212 of the side wall and the vertical steel bars 222 of the side wall respectively.
Preferably, two adjacent arched truss supports 5 are disposed at a spacing of 2 m.
Preferably, the arch height of the arch truss support 5 is 330mm. Furthermore, the easily drooping parts of the rectangular section underground passage are respectively in the 1.5m areas on the two sides of the central line of the rectangular section underground passage.
Example 3: the utility model provides a rectangle section underground passage wall structure, including concrete and reinforcement cage, reinforcement cage includes side wall vertical reinforcement 211, side wall vertical reinforcement 212, side wall vertical reinforcement 222, side wall vertical reinforcement 221, the horizontal main muscle of roof top layer 41, roof top layer longitudinal distribution reinforcing bar 42, roof bottom longitudinal distribution reinforcing bar 43, roof bottom horizontal main muscle 44 and arch truss support 5, arch truss support 5's both ends respectively with bury the reinforcing bar joint 213 in the side wall, reinforcing bar joint 223 welded fastening, and with the roof top layer longitudinal distribution reinforcing bar 42 welded fastening that its supported, roof bottom longitudinal distribution reinforcing bar 43 sets up and fixes on the truss underbeam of arch truss support 5.
Further, in the extending direction of the rectangular cross section underground passage, one arch truss support 5 is provided every 2 m.
While the present invention has been described in detail with reference to the drawings and the embodiments, those skilled in the art will understand that various specific parameters in the above embodiments may be changed without departing from the spirit of the invention, and a plurality of specific embodiments are common variation ranges of the present invention, and will not be described in detail herein.
Claims (7)
1. The method for paving the rectangular section underground passage reinforcing steel bar skeleton is characterized by comprising the following steps of:
the arched truss supports are adopted to support the top plate top layer longitudinal distribution steel bars arranged at the easily-drooping part of the rectangular section underground passage, and the arched truss supports are fixed together with the support steel bars buried in the side walls;
longitudinally distributing steel bars at the bottom layer of the top plate are lapped on a lower cross beam supported by the arched truss;
the arched truss support is fixed with the top layer longitudinal distribution steel bars of the top plate supported by the arched truss support, and the arched truss support is fixed with the bottom layer longitudinal distribution steel bars of the top plate;
before setting up the arched truss support, further comprising: constructing a bottom plate and a short side wall of a rectangular section underground passage, and embedding reinforcing steel bar connectors for supporting upright posts and side wall vertical reinforcing steel bars in the short side wall;
fixing two ends of a top plate top layer transverse main rib of the underground passage with side wall vertical ribs on two sides, and arranging top plate top layer longitudinal distribution ribs at the easily-drooping part of the underground passage with the rectangular cross section, wherein the top plate top layer longitudinal distribution ribs are fixed with the top plate top layer transverse main rib;
the wall structure of the rectangular section underground passage comprises concrete and a steel reinforcement framework, wherein the steel reinforcement framework comprises side wall vertical steel bars, top plate top layer transverse main bars, top plate top layer longitudinal distribution steel bars, top plate bottom layer longitudinal distribution steel bars and top plate bottom layer transverse main bars, the steel reinforcement framework further comprises an arched truss support, the arched truss support is fixed with a steel bar joint buried in the side wall and fixed with the top plate top layer longitudinal distribution steel bars supported by the arched truss support, and the top plate bottom layer longitudinal distribution steel bars are erected and fixed on truss lower beams supported by the arched truss support.
2. The method for laying the steel bar bones of the rectangular-section underground passage according to claim 1, wherein after the arch truss support is arranged, the longitudinally distributed steel bars on the top plate layer of the rectangular-section underground passage are laid at the position which is not easy to sag, and the longitudinally distributed steel bars on the top plate layer are fixed with the transverse main steel bars on the top plate layer.
3. The method for laying rectangular cross-section underground passage reinforcing bars according to claim 1, wherein after the longitudinal distribution bars of the bottom plate are arranged, a transverse main bar of the bottom plate is arranged below the longitudinal distribution bars of the bottom plate, and the transverse main bar of the bottom plate and the longitudinal distribution bars of the bottom plate are fixed together.
4. The method for laying rectangular cross-section underground passage reinforcing steel bars according to claim 1, wherein two adjacent arched truss supports are arranged at a spacing of 2 m.
5. The method for laying reinforcing steel bar bones of the underground passage with the rectangular cross section according to claim 1, wherein the rectangular cross section of the underground passage with the rectangular cross section is 6400mm multiplied by 3600mm, the thickness of the bottom plate is 500mm, the thickness of the top plate is 500mm, the thickness of the side wall is 450mm, and the arch height of the arch truss support of the underground passage is 330mm.
6. The method for laying a rectangular cross-section underground passage reinforcing steel bar skeleton of claim 5, wherein the easily sagging portions of the rectangular cross-section underground passage are in 1.5m areas on both sides of the midline of the rectangular cross-section underground passage.
7. The method of laying a rectangular cross-section underground passage reinforcing bar skeleton of claim 1, wherein one of the arch truss supports is provided every 2m in the extending direction of the rectangular cross-section underground passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910397357.0A CN110004844B (en) | 2019-05-14 | 2019-05-14 | Rectangular section underground passage wall structure and underground passage reinforcing steel bar skeleton paving method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910397357.0A CN110004844B (en) | 2019-05-14 | 2019-05-14 | Rectangular section underground passage wall structure and underground passage reinforcing steel bar skeleton paving method |
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| CN110004844A CN110004844A (en) | 2019-07-12 |
| CN110004844B true CN110004844B (en) | 2024-03-08 |
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|---|---|---|---|---|
| GB649688A (en) * | 1947-10-13 | 1951-01-31 | Zorislav Franjetich | Improvements in concrete constructional elements |
| JP2004339753A (en) * | 2003-05-14 | 2004-12-02 | Kumagai Gumi Co Ltd | Construction method for vaulted type underground structural body |
| KR20090116342A (en) * | 2008-05-07 | 2009-11-11 | 이정락 | Truss panel for retaining concrete wall and execution method used by this |
| CN202369931U (en) * | 2011-12-29 | 2012-08-08 | 浙江大东吴集团建设有限公司 | Arch ring bracket |
| CN104420538A (en) * | 2013-09-11 | 2015-03-18 | 菲森建设株式会社 | Corrugated type reinforced concrete composite structure |
| CN205637266U (en) * | 2016-05-23 | 2016-10-12 | 甘肃安居建设工程集团有限公司 | Prestressing force truss reinforced concrete bottom plate |
| CN206570928U (en) * | 2017-03-13 | 2017-10-20 | 王玉顺 | A kind of building structure of high-rise building arch type commutation layer |
| CN208280038U (en) * | 2018-04-02 | 2018-12-25 | 中铁二十一局集团第二工程有限公司 | A kind of arch culvert template system |
| CN208632986U (en) * | 2018-07-10 | 2019-03-22 | 湖南省交通规划勘察设计院有限公司 | A kind of rectangular channel structure of precast assembly |
| CN210066539U (en) * | 2019-05-14 | 2020-02-14 | 中铁隧道局集团有限公司 | Rectangular section underground passage wall structure |
-
2019
- 2019-05-14 CN CN201910397357.0A patent/CN110004844B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB649688A (en) * | 1947-10-13 | 1951-01-31 | Zorislav Franjetich | Improvements in concrete constructional elements |
| JP2004339753A (en) * | 2003-05-14 | 2004-12-02 | Kumagai Gumi Co Ltd | Construction method for vaulted type underground structural body |
| KR20090116342A (en) * | 2008-05-07 | 2009-11-11 | 이정락 | Truss panel for retaining concrete wall and execution method used by this |
| CN202369931U (en) * | 2011-12-29 | 2012-08-08 | 浙江大东吴集团建设有限公司 | Arch ring bracket |
| CN104420538A (en) * | 2013-09-11 | 2015-03-18 | 菲森建设株式会社 | Corrugated type reinforced concrete composite structure |
| CN205637266U (en) * | 2016-05-23 | 2016-10-12 | 甘肃安居建设工程集团有限公司 | Prestressing force truss reinforced concrete bottom plate |
| CN206570928U (en) * | 2017-03-13 | 2017-10-20 | 王玉顺 | A kind of building structure of high-rise building arch type commutation layer |
| CN208280038U (en) * | 2018-04-02 | 2018-12-25 | 中铁二十一局集团第二工程有限公司 | A kind of arch culvert template system |
| CN208632986U (en) * | 2018-07-10 | 2019-03-22 | 湖南省交通规划勘察设计院有限公司 | A kind of rectangular channel structure of precast assembly |
| CN210066539U (en) * | 2019-05-14 | 2020-02-14 | 中铁隧道局集团有限公司 | Rectangular section underground passage wall structure |
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| CN110004844A (en) | 2019-07-12 |
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