CN110409708A - A kind of combination beam permanent post-tensioned prestressing set decking and its installation method - Google Patents
A kind of combination beam permanent post-tensioned prestressing set decking and its installation method Download PDFInfo
- Publication number
- CN110409708A CN110409708A CN201910660820.6A CN201910660820A CN110409708A CN 110409708 A CN110409708 A CN 110409708A CN 201910660820 A CN201910660820 A CN 201910660820A CN 110409708 A CN110409708 A CN 110409708A
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- China
- Prior art keywords
- base plate
- decking
- end plate
- abdomen mould
- plate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
- E04C3/26—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members prestressed
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/04—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention discloses a kind of permanent post-tensioned prestressings of combination beam to cover decking and its installation method, and set decking includes base plate, left and right abdomen mould and the end plate for being installed on pedestal board ends；Base plate two sides are provided with the longitudinal socket for installing abdomen mould, and pedestal board ends are provided with the lateral slot for installing the end plate, and base plate is provided with bellows and forms prestressed pore passage.The set decking later period of the invention is not necessarily to demoulding, and base plate part substitutes the tensile region of beam body, the bearing capacity and anti-crack ability of girder construction can be improved.The present invention can simplify the cumbersome construction process such as existing steel form installation, disassembly, and structure durability can be improved while guaranteeing precast beam weight, reduce maintenance and the maintenance cost of later period girder construction.The present invention is a kind of permanent formwork, can form entirety with rear pouring concrete, has wide applicability and very high reliability.
Description
Technical field
The present invention relates to field of civil engineering, in particular to a kind of combination beam with permanent post-tensioned prestressing cover decking and
Its installation method.
Background technique
It is general to select steel form for prefab-form in the prefabrication process of precast concrete beam, in the prefabrication process of beam
It first to found steel form and carry out fixation appropriate and detailed treatment, steel form is removed after concrete hardening.Steel form is in reality
It is had the following deficiencies: in work progress first is that working procedure is complicated, cumbersome, in template installation process, once installation accuracy is poor,
Template surface is dealt with improperly, and the open defect of beam body can be caused；During form removable, once misoperation can be to incomplete
The concrete beam body of hardening causes appearance and internal injury, influences safety and the durability of girder construction.Second is that steel form steel
Amount is big, cost is high, and long-time service will cause template deformation, influence using effect.
Ultra-high performance concrete (UHPC) although have excellent Physical and mechanical properties, toughness and durability, its
Contraction under the conditions of material price is high and natural curing is larger.Girder construction is poured with pure UHPC, not only cost is high, but also constructs
It is big that quality controls difficulty.
Summary of the invention
Goal of the invention: it is an object of the invention to overcome, conventional template construction is complicated, cumbersome, steel using amount is big, cost is high
Problem provides a kind of combination beam permanent post-tensioned prestressing set decking and its installation method.
Technical solution: a kind of combination beam permanent post-tensioned prestressing set decking of the present invention, the set are die-filling
Plate includes base plate, left and right abdomen mould and the end plate for being installed on the pedestal board ends；The base plate two sides are provided with
For installing the longitudinal socket of the abdomen mould, the pedestal board ends are provided with the transverse direction for installing the end plate and insert
Slot.
The base plate, abdomen mould and end plate is prefabricated using UHPC, and preferably UHPC intensity is 150MPa, and steel is fine
Dimension hplc is 2-4%.
The key teeth of several genesis analysis is provided on the inside of the abdomen mould, the setting of the key teeth requires to set according to interface shearing-resistance
Fixed, key teeth is preferably shaped to cylindricality or square column type, and the key teeth is along abdomen mould upper end to lower end longitudinal direction uniform intervals point
Cloth.
Bellows, anchorage zone Indirect reinforcement and dowel are disposed in the base plate.The pedestal plate thickness should
Meet the arrangement of Indirect reinforcement and dowel requirement under bellows, anchor.The bellows is preferably the zinc-plated ripple of diameter 55mm
Pipe, arrangement should meet the requirement in pre-stress design, and beam body wears prestressed strand in bellows after the completion of pouring, tensioning is answered in advance
Power.
The anchorage zone Indirect reinforcement setting requires determination according to crack-resisting design under anchor, and preferably reinforcing bar type is diameter
14 hot rolled ribbed bars of Φ.
The set decking is prepared by the following method:
(1a) is using UHPC difference precast base plate, abdomen mould and end plate, the bellows, anchorage zone Indirect reinforcement
And dowel pours when the base plate is prefabricated with UHPC integral, the longitudinal socket and lateral slot are pre- in base plate
It reserves and is formed when processed；
Prefabricated two panels abdomen mould is inserted into the longitudinal socket of base plate by (1b)；
Prefabricated two panels end plate is inserted into the lateral slot of base plate by (1c)；
(1d) carries out simultaneously abutment joint appropriate of reinforcing to abdomen mould and end plate and is sealed processing, and set decking installs
At.
The edge 1-2cm of the longitudinal socket and lateral slot apart from base plate；The width of the longitudinal socket is than abdomen mould
The big 1-2mm of thickness, the width of the lateral slot is 1-2mm bigger than the thickness of end plate；
The depth of the longitudinal socket is 1-2 times of the abdomen mould thickness；The depth of the lateral slot is the end
1-2 times of plate thickness；The length of the longitudinal socket is 1-2mm bigger than abdomen mould length, and the lateral slot width is inserted than end
The big 1-2mm of the width in board bottom portion.
The height of the abdomen mould is identical as the height of the end plate, the thickness of the abdomen mould and the end plate
Thickness is identical.
The dowel is equally spaced on base plate along longitudinal, and the spacing of the adjacent dowel is 30-50cm,
Embedment length of the dowel in base plate is 3-5 times of bar diameter.Dowel it is preferable to use reinforcing bar type be Φ 12
Hot rolled ribbed bars.
Combination beam of the present invention covers the installation method of decking with permanent post-tensioned prestressing, comprising the following steps:
(2a) is using UHPC difference precast base plate, abdomen mould and end plate, the bellows, anchorage zone Indirect reinforcement
And dowel pours when the base plate is prefabricated with UHPC integral, the longitudinal socket and lateral slot are pre- in base plate
It reserves and is formed when processed；
(2b) cleans up base plate upper surface, longitudinal socket and lateral slot, and prefabricated two panels abdomen mould is inserted into
Into the longitudinal socket of base plate, prefabricated two panels end plate is inserted into the lateral slot of base plate；
(2c) carries out simultaneously abutment joint appropriate of reinforcing to abdomen mould and end plate and is sealed processing, and set decking installs
At.
The utility model has the advantages that UHPC is fabricated to permanent formwork to (1) present invention and normal concrete pours into combination beam, not only
The mechanical property and endurance quality that the defect of steel form can be made up, and make full use of UHPC excellent, strengthened beam harsh environment
The durability of lower beam structure reduces the construction cost and later period maintenance maintenance cost of construction period；(2) present invention simplifies existing template
The construction method of installing and dismounting, avoids that traditional steel form complicated construction technique, work progress is cumbersome, steel using amount is big and high cost
Problem ensure that the construction quality of beam body；(3) present invention simplifies existing anchoring structure using the template of UHPC preparation, improves
Anchorage zone construction efficiency；(4) present invention is by UHPC material and retarded adhesive prestressed combination, and for the tensile region of beam, part is substituted
The bearing capacity and crack resistance of beam can be improved in the tensile region of beam body；(5) template of the invention have it is high it is durable, permanent, can
Apply prestressing force and the features such as without dismantling, the durability, anti-crack ability and bearing capacity of beams of concrete can be improved, after reduction
The maintenance cost of phase structure reduces the construction time；(6) present invention is a kind of permanent formwork, and the later period is not necessarily to demoulding, has
Wide applicability and very high reliability.
Detailed description of the invention
Fig. 1 is the base plate three-dimensional figure that combination beam of the present invention covers decking with permanent post-tensioned prestressing；
Fig. 2 is the base plate top view that combination beam of the present invention covers decking with permanent post-tensioned prestressing；
Fig. 3 is the base plate sectional view that combination beam of the present invention covers decking with permanent post-tensioned prestressing；
Fig. 4 is the schematic cross-section that combination beam of the present invention covers decking with permanent post-tensioned prestressing；
Fig. 5 is the base plate elevation that combination beam of the present invention covers decking with permanent post-tensioned prestressing；
Fig. 6 is the abdomen mould three-dimensional figure that combination beam of the present invention covers decking with permanent post-tensioned prestressing；
Fig. 7 is the end plate three-dimensional figure that combination beam of the present invention covers decking with permanent post-tensioned prestressing.
Specific embodiment
To facilitate the understanding of the structure of the invention, it is illustrated with reference to the accompanying drawings and embodiments.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
Embodiment 1: as a kind of permanent post-tensioned prestressing of combination beam Fig. 1 of the invention covers decking 1, including base plate
10, left and right abdomen mould 20 and end plate 30.Base plate 10, left and right abdomen mould 20 and end plate 30 are prefabricated components, in work
Prefabricated using UHPC difference in factory, UHPC intensity is 150MPa, content of steel fiber 2-4%.
The present invention is inserted by the end of UHPC prefabricated base plate 10, the peritonaeum and both ends that are installed on 10 two sides of base plate
Plate 30, cavity for accommodating concrete of encircling a city, fill concrete can form prefabricated board in cavity, without removing surrounding mould
Plate gives one of precast construction and method for prefabricating of the set decking in the present embodiment.
As depicted in figs. 1 and 2, base plate 10 is rectangular block shape bottom plate, and the longitudinal direction of rectangle is as heretofore described
Longitudinal direction, the short side direction of rectangle is heretofore described transverse direction, and the upper bottom surface of base plate 10 is respectively first end face 11
With second end face 12, two long sides of second end face 12 are respectively first side 13 and second side 14, are located at second end face 12
Two articles of short sides at both ends are respectively third side 15 and four side 16.12 edge of second end face is recessed the slot of frame shape,
Respectively two longitudinal sockets 101 and two lateral slots 102, edge of the frame shape slot apart from second end face are 1-2cm.
From figure 2 it can be seen that two 101 parallelly distribute ons of longitudinal socket are in the first side 13 or the second of second end face 12
Side 14, the longitudinal socket close to first side are first longitudinal direction slot 1011, and the longitudinal socket close to second side 14 is the
Two longitudinal sockets 1012, distance and second longitudinal direction slot 1012 distance of the first longitudinal direction slot 1011 apart from first side 13
The distance of dual side-edge 14 is between 1-2cm, and similarly, two 102 parallelly distribute ons of lateral slot are in the third side of second end face 12
Side 15 or four side 16, the lateral slot close to third side 15 is the first lateral slot 1021, close to four side 16
Lateral slot is the second lateral slot 1022, and distance and second of first lateral slot 1021 apart from third side 15 are laterally inserted
The distance of 1022 distance four side 16 of slot is between 1-2cm；It is for subsequent set decking at a distance from slot and side are reserved
It is assembled to form stable formwork structure.
The shape of longitudinal socket 101 of the invention matches with size and 20 bottom end of web, the shape of lateral slot 102 with
The lower shape of end plate 30 matches, but since the component of set decking of the invention is independent prefabricated installation, therefore for pacifying
The need of the longitudinal socket 101 and the lateral slot 102 for installing end plate 30 that fill abdomen mould reserve certain installation space,
Preferably, the width of longitudinal socket 101 is 1-2mm bigger than the thickness of abdomen mould 20, and the length of longitudinal socket 101 is bigger than 20 length of abdomen mould
1-2mm facilitates web 20 to be inserted into.Similarly, the width of lateral slot 102 is 1-2mm bigger than the thickness of end plate 30, laterally inserts
The length of slot 102 is 1-2mm bigger than 30 length of end plate, and end plate 30 is facilitated to be inserted into.
The depth of slot should not be excessively shallow, it is preferable that the depth of every longitudinal socket 101 is 1-2 times of 20 thickness of abdomen mould；It is horizontal
Depth to slot 102 is 1-2 times of 30 thickness of end plate, it is ensured that whole after abdomen mould 20 and the insertion slot of end plate 30
The structure of a set decking is relatively stable.
As shown in figure 3, figure 4 and figure 5, it is disposed with bellows 103 in base plate 10, forms prestressed pore passage, anchorage zone is indirect
Reinforcing bar 104 and dowel 105；Bellows 103 is the zinc-plated bellows of diameter 55mm in the present embodiment, and arrangement should meet pre- answer
Requirement in power design, beam body wear prestressed strand, stretch-draw prestressing force after the completion of pouring in line pipe；Anchorage zone Indirect reinforcement
104 settings require to determine according to crack-resisting design under anchor, and in the setting of 10 both ends interval of base plate, reinforcing bar type is 14 hot rolling of diameter of phi
Ribbed Bar；Dowel 105 is equally spaced, spacing 30-50cm, and the embedment length in base plate 10 is that 5 times of reinforcing bars are straight
Diameter, reinforcing bar type are 12 hot rolled ribbed bars of Φ, and dowel 105 can arrange several columns on base plate 10 according to demand；This
Base plate thickness need to meet the arrangement requirement of bellows, anchorage zone Indirect reinforcement 104 and dowel 105 in invention.
As shown in Figure 6, Figure 7, the long cylindricality key teeth 201 of several genesis analysis is provided on the inside of abdomen mould 20, key teeth 201 is arranged
It requires to set according to interface shearing-resistance, key teeth 201 increases between abdomen mould 20 and concrete when covering fill concrete in decking 1
Active force, and due to the distance between two panels abdomen mould 20 usually by Specific construction require web thickness determine, when box beam
When web thickness is less than baseplate width, in prefabricated abdomen mould 20, need that an outwardly extending horizontal transition is arranged on the downside of abdomen mould 20
Platform, so that the distance of 20 bottom end of two panels abdomen mould is matched with the width of base plate 10；Preferably, the height of abdomen mould 20 and end are inserted
The height of plate 30 is identical, and the thickness of the thickness end plate 30 of abdomen mould 20 is identical.
Said combination beam covers the installation method of decking with permanent post-tensioned prestressing, comprising the following steps:
Step 1: indirect using UHPC difference precast base plate 10, abdomen mould 20 and end plate 30, bellows, anchorage zone
Reinforcing bar 104 and dowel 105 pour integral, longitudinal socket 101 and lateral slot 102 when base plate 10 is prefabricated with UHPC
It reserves and is formed when base plate 10 is prefabricated；
Step 2: prefabricated base plate 10 being lifted on beam making bench, 10 upper surface of base plate is carried out at dabbing
Reason；
Step 2: 10 upper surface of base plate, longitudinal socket and lateral slot being cleaned up, by prefabricated two panels abdomen mould
20 are inserted into the longitudinal socket 101 of base plate 10, and prefabricated two panels end plate 30 is inserted into the transverse direction of base plate 10
In slot 102；
Step 3: reinforcing appropriate being carried out to abdomen mould 20 and end plate 30 and abutment joint is sealed processing, template installation
It completes.
The set decking 1 assembled simplifies the construction method of existing template installing and dismounting, and the later period is not necessarily to demoulding, and is set with
UHPC material and retarded adhesive prestressed combination, part are substituted the tensile region of beam body, the bearing capacity after improving structure by template 1
And anti-crack ability, for ensure that the construction quality of beam body in combination beam.The present invention is a kind of permanent formwork, can be poured with after
Concrete forms entirety, has wide applicability and very high reliability.
Claims (10)
1. a kind of combination beam covers decking with permanent post-tensioned prestressing, which is characterized in that the set decking (1) includes pedestal
Plate (10), left and right abdomen mould (20) and the end plate (30) for being installed on the base plate (10) both ends；The base plate (10)
Two sides are provided with the longitudinal socket (101) for installing the abdomen mould (20), and base plate (10) both ends are provided with for pacifying
Fill the lateral slot (102) of the end plate (30).
2. combination beam according to claim 1 covers decking with permanent post-tensioned prestressing, which is characterized in that the pedestal
Plate (10), abdomen mould (20) and end plate (30) are prefabricated using UHPC.
3. combination beam according to claim 1 covers decking with permanent post-tensioned prestressing, which is characterized in that the abdomen mould
(20) inside is provided with the key teeth (201) of several genesis analysis.
4. combination beam according to claim 1 covers decking with permanent post-tensioned prestressing, which is characterized in that the pedestal
It is disposed with bellows (103) in plate (10), anchorage zone Indirect reinforcement (104) and dowel (105).
5. combination beam according to claim 1 covers decking with permanent post-tensioned prestressing, which is characterized in that the suit
Template (1) is prepared by the following method:
(1a) is using UHPC difference precast base plate (10), abdomen mould (20) and end plate (30)；The bellows (103),
Anchorage zone Indirect reinforcement (104) and dowel (105) pour when the base plate (10) is prefabricated with UHPC integral；It is described
Longitudinal socket (101) and lateral slot (102) are reserved when base plate (10) is prefabricated to be formed；
Prefabricated two panels abdomen mould (20) is inserted into the longitudinal socket (101) of base plate (10) by (1b)；
Prefabricated two panels end plate (30) is inserted into the lateral slot (102) of base plate (10) by (1c)；
(1d) carries out simultaneously abutment joint appropriate of reinforcing to abdomen mould (20) and end plate (30) and is sealed processing, set decking peace
It installs into.
6. combination beam according to claim 5 covers decking with permanent post-tensioned prestressing, which is characterized in that described in every
The edge 1-2cm of longitudinal socket (101) and every lateral slot (102) apart from base plate (10)；The longitudinal socket
(101) width is 1-2mm bigger than the thickness of abdomen mould (20), the thickness of the width of the lateral slot (102) than end plate (30)
Spend big 1-2mm.
7. combination beam according to claim 5 covers decking with permanent post-tensioned prestressing, which is characterized in that the longitudinal direction
The depth of slot (101) is 1-2 times of abdomen mould (20) thickness；The depth of the lateral slot (102) is that the end is inserted
1-2 times of plate (30) thickness；The length of the longitudinal socket (101) is 1-2mm bigger than abdomen mould (20) length, the lateral slot
(102) width is 1-2mm bigger than the width of end plate (30) bottom.
8. combination beam according to claim 5 covers decking with permanent post-tensioned prestressing, which is characterized in that the abdomen mould
(20) height is identical as the height of the end plate (30), the thickness of the abdomen mould (20) and the end plate (30)
Thickness is identical.
9. combination beam according to claim 1 covers decking with permanent post-tensioned prestressing, which is characterized in that the connection
Muscle (105) is equally spaced on base plate (10) along longitudinal, and the spacing of the adjacent dowel (105) is 30-50cm, institute
Stating embedment length of the dowel (105) in base plate (10) is 3-5 times of bar diameter.
10. a kind of combination beam as described in claim 1 installation method of permanent post-tensioned prestressing set decking, including with
Lower step:
(2a) using UHPC difference precast base plate (10), abdomen mould (20) and end plate (30), the bellows (103),
Anchorage zone Indirect reinforcement (104) and dowel (105) poured when the base plate (10) is prefabricated with UHPC it is integral, it is described
Longitudinal socket (101) and lateral slot (102) are reserved when base plate (10) is prefabricated to be formed；
(2b) cleans up base plate (10) upper surface, longitudinal socket and lateral slot, by prefabricated two panels abdomen mould (20)
It is inserted into the longitudinal socket (101) of base plate (10), prefabricated two panels end plate (30) is inserted into base plate (10)
Lateral slot (102) in；
(2c) carries out simultaneously abutment joint appropriate of reinforcing to abdomen mould (20) and end plate (30) and is sealed processing, set decking peace
It installs into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910660820.6A CN110409708A (en) | 2019-07-22 | 2019-07-22 | A kind of combination beam permanent post-tensioned prestressing set decking and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910660820.6A CN110409708A (en) | 2019-07-22 | 2019-07-22 | A kind of combination beam permanent post-tensioned prestressing set decking and its installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110409708A true CN110409708A (en) | 2019-11-05 |
Family
ID=68362248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910660820.6A Pending CN110409708A (en) | 2019-07-22 | 2019-07-22 | A kind of combination beam permanent post-tensioned prestressing set decking and its installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110409708A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319717A (en) * | 2020-09-30 | 2022-04-12 | 华中科技大学 | Prefabricated assembled steel-concrete composite beam |
| CN115095067A (en) * | 2022-06-25 | 2022-09-23 | 长沙巨星轻质建材股份有限公司 | Assembled self-bearing prestressed secondary beam member |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204983391U (en) * | 2015-08-04 | 2016-01-20 | 万保金 | Exempt from to tear open precast concrete beam mold board |
| CN108755380A (en) * | 2018-06-07 | 2018-11-06 | 广州市市政工程设计研究总院有限公司 | A kind of UHPC small box girders structure |
| CN109098332A (en) * | 2018-09-13 | 2018-12-28 | 东南大学 | A kind of novel contignation and its method of construction towards marine environment |
| CN109184198A (en) * | 2018-10-01 | 2019-01-11 | 西南交通大学 | Armored concrete girder construction, the method for permanent template and its composition |
| CN109333775A (en) * | 2018-11-27 | 2019-02-15 | 中国三冶集团有限公司 | A kind of cast-in-place connector collar tie beam mold of prefabrication and assembly construction |
| KR20190074790A (en) * | 2017-12-20 | 2019-06-28 | 동서대학교 산학협력단 | Sequential filled type concrete filled steel tube column |
-
2019
- 2019-07-22 CN CN201910660820.6A patent/CN110409708A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204983391U (en) * | 2015-08-04 | 2016-01-20 | 万保金 | Exempt from to tear open precast concrete beam mold board |
| KR20190074790A (en) * | 2017-12-20 | 2019-06-28 | 동서대학교 산학협력단 | Sequential filled type concrete filled steel tube column |
| CN108755380A (en) * | 2018-06-07 | 2018-11-06 | 广州市市政工程设计研究总院有限公司 | A kind of UHPC small box girders structure |
| CN109098332A (en) * | 2018-09-13 | 2018-12-28 | 东南大学 | A kind of novel contignation and its method of construction towards marine environment |
| CN109184198A (en) * | 2018-10-01 | 2019-01-11 | 西南交通大学 | Armored concrete girder construction, the method for permanent template and its composition |
| CN109333775A (en) * | 2018-11-27 | 2019-02-15 | 中国三冶集团有限公司 | A kind of cast-in-place connector collar tie beam mold of prefabrication and assembly construction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319717A (en) * | 2020-09-30 | 2022-04-12 | 华中科技大学 | Prefabricated assembled steel-concrete composite beam |
| CN115095067A (en) * | 2022-06-25 | 2022-09-23 | 长沙巨星轻质建材股份有限公司 | Assembled self-bearing prestressed secondary beam member |
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Application publication date: 20191105 |