CN109505242A - A kind of composite beam for interim bedding system - Google Patents
A kind of composite beam for interim bedding system Download PDFInfo
- Publication number
- CN109505242A CN109505242A CN201811324083.4A CN201811324083A CN109505242A CN 109505242 A CN109505242 A CN 109505242A CN 201811324083 A CN201811324083 A CN 201811324083A CN 109505242 A CN109505242 A CN 109505242A
- Authority
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- Prior art keywords
- segment
- concrete layer
- crossbeam
- metal beam
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 239000002184 metal Substances 0.000 claims abstract description 66
- 229910052751 metal Inorganic materials 0.000 claims abstract description 66
- 238000010276 construction Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention discloses a kind of composite beam for interim bedding system, comprising: the height of metal beam, the metal beam becomes smaller gradually from the middle part of the metal beam to both ends；The metal beam includes multiple in the sequentially connected crossbeam segment of line-styled, and the height at crossbeam segment both ends is inconsistent, and the connection component for connecting the adjacent crossbeam segment is provided between the crossbeam segment；Concrete layer, the concrete layer, which pours, to be arranged in the metal beam, and the readily removable arrangement for connecting the metal beam Yu the concrete layer is provided between the metal beam and the concrete layer.The invention also discloses the installation method of the composite beam and method for dismounting.Composite beam of the invention, span is adjustable, and globality is strong, and material is recyclable, increases the practicability of interim bedding system.
Description
Technical field
The invention belongs to interim bedding technical fields, and in particular to one kind get higher can assembled nonexpondable composite beam and its
Installation method.
Background technique
Subway construction is mostly underground engineering, and route is set to below major urban arterial highway road more, and station more options are in traffic convenience
Level crossing.But along with the construction of subway station, the traffic diversion of construction period often causes greatly the passage in city
Pressure.The duration of station subject construction engineering is often longer, uses interim bedding system to become at this moment to reduce urban road
The Normal practice of current pressure.Interim bedding system, predominantly using the integrated system of interim column combination carriageway plate, the system
Mainly serve for ensuring the traffic capacity of urban road.
The principal mode of current interim bedding system has concrete cover and army just two kinds of forms of beam, wherein concrete cover
Have the following problems: 1, concrete cover need to generally cooperate corresponding transverse and longitudinal beam, the generally not super 10m of maximum width, for needing entirety
The station for carrying out bedding, need to increase central post.And central post can bring greater impact station construction；2, using coagulation earth mulch
It is larger that the plate later period abolishes range, and needs a large amount of concrete squares, and waste is serious.
If station integrally needs to carry out bedding construction, army's just beam is generally used.But still have the following problems: 1, just beam is general for army
It is spliced for more Pin, globality poor；2, due to army just beam cannot directly fleet vehicles or carry out pitch pour, need to increase on top
If concrete cast-in-situ layer, and then increase army's just beam load；3, for large-span structure, the vertical rigidity of army's just beam is poor, so that road
Face driving comfort level is poor；4, army just beam use unit construction, highly cannot with across footpath increase and increase, therefore rise span by
Limit.
Summary of the invention
The object of the present invention is to provide a kind of composite beams for interim bedding system, solve in current interim bedding system
Concrete cover needs to increase central post and needs a large amount of concrete squares and army just beam globality poor, load be excessive, span by
The technical issues of limit.
To solve the above-mentioned problems, the present invention is achieved by following technical scheme:
A kind of composite beam for interim bedding system, comprising: metal beam, the height of the metal beam is by the gold
The middle part for belonging to crossbeam becomes smaller gradually to both ends；It is in the sequentially connected crossbeam segment of line-styled that the metal beam, which includes multiple,
The height at crossbeam segment both ends is inconsistent, is provided between the crossbeam segment for connecting the adjacent crossbeam segment
Connection component；
Concrete layer, the concrete layer, which pours, to be arranged in the metal beam, the metal beam and the coagulation
The readily removable arrangement for connecting the metal beam Yu the concrete layer is provided between soil layer.
Compared with prior art, the present invention forms metal beam by several crossbeam segments, and the length of metal beam can lead to
The quantity of adjustment crossbeam segment is crossed to change, so that the span of composite beam is adjustable.The both ends height of the crossbeam segment
It is inconsistent, metal beam can be formed by the crossbeam segment of selection respective numbers and certain height, so that the height of metal beam
Degree increases gradually from both ends to middle part, and can efficiently solve composite beam as span increases must increase asking for beam height degree
Topic.Composite beam is formed by metal beam and Combined concrete, increases the globality of composite beam, and vertical rigidity is preferable, reduces
The use of concrete, while decreasing the load of composite beam.Connected between metal beam and concrete layer by readily removable arrangement
It connects, not only enhances the stability between metal beam and concrete layer, moreover it is possible to is readily removable by removing after the completion of making composite beam use
Arrangement, dismantling concrete layer, and then crossbeam segment is recycled, so that crossbeam segment is reused.
Further, the connection component include several first through hole being arranged on the crossbeam segment, it is corresponding described in
First through hole is provided with the connecting plate of the second through-hole, is serially connected with fastening assembly between the first through hole and second through-hole.
Further, the crossbeam segment is the steel plate that cross section is in " I " fonts, and the crossbeam segment includes web, sets
Set the web top top plate and the bottom plate of the web bottom end is set；The top plate is in horizontally disposed, the bottom
Inclination or bending segment are provided on plate.
Further, the readily removable arrangement includes sleeve and bolt, and the bolt is removably mounted on the metal
On crossbeam, the sleeve is set to concrete layer, and the sleeve is connect with the bolt thread.
Further, the one end of the sleeve in concrete layer is provided with dowel, and the dowel protrusion is arranged described
On the lateral surface of sleeve.
Further, the dowel being arranged on adjacent sleeve is non-interference.
Further, the height of the crossbeam segment at the metal beam both ends is fixed height.
Further, the construction method of the composite beam, comprising the following steps:
S1: the crossbeam segment of corresponding number and respective heights is selected according to the span of composite beam；
S2: the crossbeam segment is placed according to the line-styled order that height is gradually increased from edge to middle part, and
The end height phase copper of the adjacent crossbeam segment；
S3: the adjacent crossbeam segment is connected by the fastening assembly, so that the crossbeam segment is formed the metal horizontal
Beam；
S4: installing the bolt in the metal beam, and the telescopic screw is mounted on the bolt.
S5: the concrete layer described in the metal beam upper pouring covers the sleeve.
Further, it is followed the steps below when removing composite beam:
S6: dismantling the bolt in the metal beam, and the bolt is separated with institute's sleeve, and the concrete layer and metal are horizontal
Beam separates；
S7: concrete layer piecemeal being cut, and cuts concrete layer, recycles sleeve；
S8: removing fastening assembly, recycles respective girders segment.
Further, the crossbeam segment is the steel plate that cross section is in " I " fonts, and the crossbeam segment includes web, sets
Set the web top top plate and the bottom plate of the web bottom end is set；It is provided on the top plate several through institute
The top plate aperture of top plate is stated, in step s 4, the bolt passes through the top plate aperture and the sleeve from the top plate lower part
Connection.
Composite beam of the invention is made of metal beam and concrete layer, reduces the use of concrete, makes the lotus of composite beam
Load becomes smaller, while increasing the stability of interim bedding system；Meanwhile the span of metal beam can be by adjusting crossbeam segment
Quantity change, strong flexibility only changes the crossbeam segment in the middle part of metal beam when needing to change the span of composite beam
Quantity can reach the effect, more reasonable to change beam body length by increasing tip lengths than common composite beam, and crossbeam
Segment can recycle use, reduce the waste of material.
In conclusion a kind of composite beam for interim bedding system provided by the invention can be widely applied to road
The technical fields such as construction, road and bridge construction have very high market value.
Detailed description of the invention
Fig. 1 is composite beam structural schematic diagram；
Fig. 2 is the web schematic diagram of crossbeam segment；
Fig. 3 is that crossbeam segment is in that line-styled is sequentially connected with schematic diagram；
Fig. 4 is connecting plate schematic diagram；
Fig. 5 is the top plate schematic diagram of crossbeam segment；
Fig. 6 is bolt, sleeve and dowel schematic diagram；
Fig. 7 is composite beam sectional view；
Fig. 8-1 and Fig. 8-2 are the different metal beam schematic diagram of span.
1- crossbeam segment, 11- top plate, 12- web, 13- top plate aperture, 14- first through hole, the second through-hole of 15-, 16- connect
Fishplate bar, 17- bottom plate；
2- concrete layer, 21- sleeve, 22- bolt, 23- dowel；
3- metal beam.
Specific embodiment
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention.But the present invention can be with
The other methods for being much different from this description are next true, and those skilled in the art can be without violating the connotation of the present invention
Similar popularization is done, therefore the present invention is not limited by the specific embodiments disclosed below.
Clear, complete description is carried out to technical solution of the present invention with attached drawing 1 combined with specific embodiments below.
Embodiment one:
It is a kind of structural representation of composite beam for interim bedding system of the embodiment of the present invention 1 as shown in Fig. 1 to 7
Figure.
The composite beam includes: metal beam 3 and concrete layer 2, the height of metal beam 3 from the middle part of metal beam 3 to
Both ends become smaller gradually.Metal beam 3 is sequentially connected with by multiple crossbeam segments 1 in line-styled, the height at 1 both ends of crossbeam segment
It spends between inconsistent, adjacent crossbeam segment 1 and is connected by connecting plate 16.
What the height positioned at the crossbeam segment 1 at 3 both ends of metal beam was usually fixed, when needing to change metal beam 3
When span, only metal beam 3 need to can be achieved with by the quantity of the crossbeam segment 1 of the respective heights among increase and decrease metal beam 3
The change of span.
The casting of concrete layer 2 is arranged in metal beam 3, passes through bolt 22 and set between metal beam 3 and concrete layer 2
Cylinder 21 connects.
Crossbeam segment 1 is the steel plate that cross section is in " I " fonts, which includes web 12, is arranged in web
The top plate 11 on 12 tops and the bottom plate 17 that 12 bottom end of web is set.Top plate 11 is in horizontally disposed.As shown in Fig. 2, web 12
In being vertically arranged, the height at 12 both ends of web is inconsistent, and several first through hole 14 are provided on web 12, is arranged on bottom plate 17
There are inclination or bending segment.
As shown in figure 3, metal beam 3 is formed by connecting by crossbeam segment 1,1 end height of adjacent beams segment identical one
End is placed adjacent, and the connecting plate 16 (as shown in Figure 4) for being provided with the second through-hole 15 is placed on the adjacent of adjacent beams segment 1,
The second through-hole 15 on connecting plate is connect with the first through hole 14 on the web 12 of adjacent beams segment 1 by fastener respectively.
As shown in figure 5, being provided with the top plate aperture 13 through top plate on " I " fonts steel plate top plate 11.As shown in fig. 7, spiral shell
Bolt 22 passes through top plate aperture 13 from bottom to top, is removably mounted in metal beam 3.Sleeve 21 is arranged in concrete layer 2,
And the porose one end of sleeve 21 is corresponding with top plate aperture 13, bolt 22 passes through top plate aperture 13 and screws in sleeve 21.
As shown in fig. 6, the one end of sleeve 21 in concrete layer 2 is provided with dowel 23, the protrusion of dowel 23 is arranged in sleeve
On 21 lateral surface.
As shown in fig. 7, non-interference between adjacent dowel 23 in concrete layer 2.
Sleeve 21 and dowel 23 increase the contact area between metal beam 3 and concrete layer 2, tie composite beam integrally
Structure is stronger, and between adjacent dowel 21 and is not connected to, so that after the completion of composite beam use, it can be easily by 2 He of concrete layer
Steel plate group 3 separates, and is more convenient recycling crossbeam segment 1, realizes the reuse of crossbeam segment 1.
Embodiment two:
Present embodiments provide the installation method of composite beam, comprising the following steps:
S1: the crossbeam segment 1 of corresponding number and respective heights, the composite beam of different spans are selected according to the span of composite beam
The crossbeam segment 1 that different number and different height may be selected, as shown in Fig. 8-1, Fig. 8-2；
S2: crossbeam segment 1 is placed according to the line-styled order that height is gradually increased from edge to middle part, and guarantees phase
The end height of adjacent crossbeam segment 1 is identical；
The connecting plate 16 for being provided with the second through-hole 15: being placed on the adjacent of adjacent beams segment 1 by S3, on connecting plate 16
The second through-hole 15 cross fasteners with the first through hole on the web 12 of adjacent beams segment 1 logical 14 respectively and connect, make crossbeam section
The 1 composition metal beam of section.
S4: installing the bolt in metal beam, and bolt passes through top plate aperture from the top plate lower part, and by sleeve spiral shell
Rotation is mounted on bolt；
S5: in metal beam upper pouring concrete layer, concrete layer covers above-mentioned sleeve；
The present embodiment additionally provides the method for dismounting of composite beam, comprising the following steps:
S6: the bolt in disassembly metal beam, bolt are separated with sleeve, at this time the company between concrete layer and metal beam
Decrease is connect, concrete layer and metal beam can be separated；
S7: above-mentioned concrete layer is cut according to the distribution piecemeal of sleeve, concrete layer is then cut, recycles sleeve；
S8: removing the connecting plate and fastening assembly being mounted between adjacent beams segment, metal beam opened, and recycles phase
Answer crossbeam segment.
The above described is only a preferred embodiment of the present invention, limitation in any form not is done to the present invention, therefore
All contents without departing from technical solution of the present invention, it is made to the above embodiment according to the technical essence of the invention any simply to repair
Change, equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of composite beam for interim bedding system characterized by comprising
The height of metal beam, the metal beam becomes smaller gradually from the middle part of the metal beam to both ends；The metal is horizontal
Beam includes multiple in the sequentially connected crossbeam segment of line-styled, and the height at crossbeam segment both ends is inconsistent, the crossbeam
The connection component for connecting the adjacent crossbeam segment is provided between segment；
Concrete layer, the concrete layer, which pours, to be arranged in the metal beam, the metal beam and the concrete layer
Between be provided with readily removable arrangement for connecting the metal beam Yu the concrete layer.
2. a kind of composite beam for interim bedding system according to claim 1, it is characterised in that:
The connection component includes that several first through hole being arranged on the crossbeam segment, the corresponding first through hole are provided with
The connecting plate of second through-hole is serially connected with fastening assembly between the first through hole and second through-hole.
3. a kind of composite beam for interim bedding system according to claim 1 or 2, it is characterised in that:
The crossbeam segment is the steel plate that cross section is in " I " fonts, and the crossbeam segment includes web, is arranged in the web
The top plate on top and the bottom plate that the web bottom end is set；
The top plate is provided with inclination or bending segment in being horizontally disposed on the bottom plate.
4. a kind of composite beam for interim bedding system according to claim 1, which is characterized in that
The readily removable arrangement includes sleeve and bolt, and the bolt is removably mounted in the metal beam, the set
Cylinder is set to concrete layer, and the sleeve is connect with the bolt thread.
5. a kind of composite beam for interim bedding system according to claim 4, which is characterized in that
The one end of the sleeve in concrete layer is provided with dowel, and the lateral surface of the sleeve is arranged in the dowel protrusion
On.
6. a kind of composite beam for interim bedding system according to claim 5, which is characterized in that
The dowel being arranged on adjacent sleeve is non-interference.
7. a kind of composite beam for interim bedding system according to claim 1, which is characterized in that
The height of the crossbeam segment at the metal beam both ends is fixed height.
8. a kind of construction method of such as described in any item composite beams of claim 4-7, which comprises the following steps:
S1: the crossbeam segment of corresponding number and respective heights is selected according to the span of composite beam；
S2: the crossbeam segment is placed according to the line-styled order that height is gradually increased from edge to middle part, and adjacent
The end height of the crossbeam segment is identical；
S3: the adjacent crossbeam segment is connected by the fastening assembly, and the crossbeam segment is made to form the metal beam；
S4: installing the bolt in the metal beam, and the telescopic screw is mounted on the bolt；
S5: the concrete layer described in the metal beam upper pouring covers the sleeve.
9. construction method according to claim 8, which is characterized in that followed the steps below when removing composite beam:
S6: dismantling the bolt in the metal beam, and the bolt is separated with the sleeve, the concrete layer and metal beam
It separates；
S7: concrete layer piecemeal being cut, and cuts concrete layer, recycles sleeve；
S8: removing fastening assembly, recycles respective girders segment.
10. construction method according to claim 8, which is characterized in that
The crossbeam segment is the steel plate that cross section is in " I " fonts, and the crossbeam segment includes web, is arranged in the web
The top plate on top and the bottom plate that the web bottom end is set；
Several top plate apertures through the top plate are provided on the top plate, in step s 4, the bolt is from the top plate
Lower part passes through the top plate aperture and the sleeve connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324083.4A CN109505242B (en) | 2018-11-08 | 2018-11-08 | Superimposed beam for temporary covering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811324083.4A CN109505242B (en) | 2018-11-08 | 2018-11-08 | Superimposed beam for temporary covering system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109505242A true CN109505242A (en) | 2019-03-22 |
| CN109505242B CN109505242B (en) | 2024-05-17 |
Family
ID=65747916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811324083.4A Active CN109505242B (en) | 2018-11-08 | 2018-11-08 | Superimposed beam for temporary covering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109505242B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359966A (en) * | 2020-10-27 | 2021-02-12 | 广州地铁设计研究院股份有限公司 | Connecting joint of superposed beam and concrete column and construction method thereof |
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| KR20030013608A (en) * | 2001-08-08 | 2003-02-15 | (주)스틸엔콘크리트 | Method of division manufacturing and construction of prestressed composite beam using supporting members |
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| CN203603073U (en) * | 2013-11-27 | 2014-05-21 | 中铁第四勘察设计院集团有限公司 | Reinforced concrete lattice type composite platform beam of elevated station |
| CN204077686U (en) * | 2014-08-29 | 2015-01-07 | 南车二七车辆有限公司 | Heavy－duty railway truck central sill forms |
| CN106087711A (en) * | 2016-08-09 | 2016-11-09 | 湖南联智桥隧技术有限公司 | Antinode work beam-steel concrete top board-external prestressing combines T-shaped simply supported beam |
| CN106835951A (en) * | 2017-03-28 | 2017-06-13 | 宁波金蛟龙重工钢构有限公司 | A kind of replaceable prefabricated assembled combined beam structure and manufacturing process |
| CN206616421U (en) * | 2017-03-01 | 2017-11-07 | 广州地铁设计研究院有限公司 | A kind of interim bedding structure across Metro station excavation |
| CN206815384U (en) * | 2017-04-23 | 2017-12-29 | 中建三局基础设施工程有限公司 | A kind of Bailey beam board combining structure as ground drive cap excavation construction cover plate |
| CN209508808U (en) * | 2018-11-08 | 2019-10-18 | 广州地铁设计研究院股份有限公司 | A kind of composite beam for interim bedding system |
-
2018
- 2018-11-08 CN CN201811324083.4A patent/CN109505242B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030013608A (en) * | 2001-08-08 | 2003-02-15 | (주)스틸엔콘크리트 | Method of division manufacturing and construction of prestressed composite beam using supporting members |
| CN2723508Y (en) * | 2004-05-18 | 2005-09-07 | 贵阳铁路分局贵阳工务大修段 | Fish belly assembly construction beam |
| CN203603073U (en) * | 2013-11-27 | 2014-05-21 | 中铁第四勘察设计院集团有限公司 | Reinforced concrete lattice type composite platform beam of elevated station |
| CN204077686U (en) * | 2014-08-29 | 2015-01-07 | 南车二七车辆有限公司 | Heavy－duty railway truck central sill forms |
| CN106087711A (en) * | 2016-08-09 | 2016-11-09 | 湖南联智桥隧技术有限公司 | Antinode work beam-steel concrete top board-external prestressing combines T-shaped simply supported beam |
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| CN206815384U (en) * | 2017-04-23 | 2017-12-29 | 中建三局基础设施工程有限公司 | A kind of Bailey beam board combining structure as ground drive cap excavation construction cover plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112359966A (en) * | 2020-10-27 | 2021-02-12 | 广州地铁设计研究院股份有限公司 | Connecting joint of superposed beam and concrete column and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109505242B (en) | 2024-05-17 |
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