CN109853980A - The prestressed reinforcement device of Cracks On Concrete Floors closure - Google Patents
The prestressed reinforcement device of Cracks On Concrete Floors closure Download PDFInfo
- Publication number
- CN109853980A CN109853980A CN201910083367.7A CN201910083367A CN109853980A CN 109853980 A CN109853980 A CN 109853980A CN 201910083367 A CN201910083367 A CN 201910083367A CN 109853980 A CN109853980 A CN 109853980A
- Authority
- CN
- China
- Prior art keywords
- floor
- strand wires
- steel strand
- steering block
- cracks
- 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.)
- Pending
Links
Abstract
The present invention provides the prestressed reinforcement device of Cracks On Concrete Floors closure, comprising: a floor, two beam bodies, two anchorages, a steel strand wires and a steering block；Two beam bodies are connect with floor respectively, steering block is set on floor, steering block is set between two beam bodies, a perforation is offered in each beam body, one end of steel strand wires passes through perforation and connect with an anchorage, the other end passes through another perforation and connect with another anchorage, and steel strand wires are connect with steering block, steel strand wires apply upward reagency to floor by steering block and form hogging moment, offset the sagging moment that floor is self-possessed and upper load is formed down, when the upward reagency of application is more than floor self weight and upper load, floor can upward antiarch slight deformation occurs, it is repaired with this and reduces floor due to Lack of support, deform cracks on floor slab that is excessive and generating.Beam body is reinforced by the External prestressed of steel strand wires and steering block, has without being unloaded to load thereon, there is the advantages of easy construction, short time limit.
Description
Technical field
The present invention relates to technical field of buildings, more particularly to the prestressed reinforcement device of Cracks On Concrete Floors closure.
Background technique
Crack is most common, most easily one of generation and the disease of earliest period generation in all kinds of breakages of building roof, it is adjoint
The entire validity period of building, and aggravated with the growth of age of the building.There is crack and is easy to expand in building iron concrete structural slab
Exhibition causes the structural destruction of building roof, shortens the service life of building roof.Therefore there is crack in building roof, should be timely
It is sealed repairing, otherwise rainwater will enter surface layer structure along crack, and corrosion reinforcing bar causes under building roof bearing capacity
Drop accelerates building roof part or damage in flakes.
Summary of the invention
To solve the above problems, the present invention adopts the following technical scheme: the prestressed reinforcement of Cracks On Concrete Floors closure
Device, comprising: an at least floor, at least two beam bodies, at least two anchorages, at least a steel strand wires and an at least steering block；
Two beam bodies are connect with the floor respectively, two beam body interval settings, and two beam bodies are flat
Row setting；
The steering block is set on the floor, and the steering block is set between two beam bodies, the steering
Block is arranged in parallel with two beam bodies respectively；
A perforation is at least offered in each beam body, and the perforation in two beam bodies is correspondingly arranged,
One end of the steel strand wires passes through a perforation and connect with an anchorage, and the other end passes through another perforation and another institute
Anchorage connection is stated, and the steel strand wires are connect with the steering block.
Further, the steering block is set to the bottom of the floor, and the middle part of the steel strand wires and the steering
Block abuts.
Further, the steering block includes steel pipe and girder steel, and the girder steel is set to the bottom of the floor, the steel
Pipe is connect with the girder steel, and is abutted against in the middle part of the steel pipe and the steel strand wires.
Further, wear-resistant gasket is provided on the steel pipe, the steel strand wires pass through the wear-resistant gasket and the steel
Pipe abuts.
Further, the anchorage is strand tapered anchorage.
Further, the quantity of the steel strand wires is two.
Further, the quantity of the anchorage is four.
Further, the perforation there are two being opened up in each beam body, and described in one in each beam body
Perforation is corresponding with the perforation in another beam body to be opened up.
Further, two steel strand wires are arranged in parallel.
Further, the middle part of the steel strand wires is abutted with one end of the steering block, in another steel strand wires
Portion is abutted with the other end of the steering block.
The invention has the benefit that steel strand wires are fixed by anchorage, steel strand wires by steering block to floor apply to
Upper reagency forms hogging moment, to offset the sagging moment conducting the upper load come on floor self weight and floor and being formed down, when
The upward reagency applied is more than that floor is self-possessed and when upper load, floor can upward antiarch generation slight deformation, repaired with this
Reduce floor due to Lack of support, deformation it is excessive and generate cracks on floor slab.Pass through the External prestressed of steel strand wires and steering block
Beam body is reinforced, has without being unloaded to load thereon, there is the advantages of easy construction, short time limit.
Detailed description of the invention
The invention will be further described for attached drawing, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.
Fig. 1 is the direction section view signal of the prestressed reinforcement device for the Cracks On Concrete Floors closure that an embodiment provides
Figure；
Fig. 2 is a direction section view of the prestressed reinforcement device for the Cracks On Concrete Floors closure that another embodiment provides
Figure；
Fig. 3 is a direction section view of the prestressed reinforcement device for the Cracks On Concrete Floors closure that another embodiment provides
Figure；
Fig. 4 is the schematic diagram of the section structure in Fig. 1 along A-A hatching.
Specific embodiment
Below with reference to the attached drawing of the embodiment of the present invention, technical solution of the present invention is described further, the present invention is not
It is only limitted to following specific embodiments.It should be noted that in the absence of conflict, embodiment and embodiment in the present invention
In feature can be combined with each other.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention；Term " first ", " second ", " third "
It is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance；In addition, unless otherwise specific regulation and limit
Fixed, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to detachably connect
It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through
Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
As shown in Figure 1, its prestressed reinforcement device for 100 crack closure of concrete floor of one embodiment of the invention,
It include: 100, two, floor beam body 200, two anchorage 300, a steel strand wires 400 and a steering block 500；Two beams
Body 200 is connect with the floor 100 respectively, two interval of beam body 200 settings, and two beam bodies 200 are arranged in parallel；
The steering block 500 is set on the floor 100, and the steering block 500 is set between two beam bodies 200, described
Steering block 500 is arranged in parallel with two beam bodies 200 respectively；A perforation is at least offered in each beam body 200
310, and the perforation 310 in two beam bodies 200 is correspondingly arranged, one end of the steel strand wires 400 pass through one described in wear
Hole 310 is connect with an anchorage 300, and the other end passes through another perforation 310 and connect with another anchorage 300, and institute
Steel strand wires 400 are stated to connect with the steering block 500.
Specifically, two beam bodies 200 are load bearing beam, and for carrying the weight of floor 100, two beam bodies 200 are fixedly connected
On the bottom surface of floor 100, in the present embodiment, two beam bodies 200 are the beam of reinforced concrete structure, since floor 100 has
There is crack, steering block 500 is set on floor 100, and steering block 500 covers crack, it is worth mentioning at this point that, steering block
500 are placed on crack, and steering block 500 is parallel to each other with two beam bodies 200 respectively, and in the present embodiment, each anchorage 300 is distinguished
Beam body 200 is connected in the one side of steering block 500, and one end of steel strand wires 400 passes through the perforation 310 in a beam body 200
It is connect with the anchorage 300 being connected in beam body 200, the other end passes through the perforation 310 in another beam body 200 and is connected to another beam
Another anchorage 300 on body 200 connects, and further, steel strand wires 400 are connected on steering block 500, and is tensed by both ends,
Steel strand wires 400 are well fixed steering block 500, support force are provided for steering block 500, as floor 100
There is provided better support force, that is to say, that the steering block 500 is set to the bottom of the floor 100, and the steel strand wires
400 middle part is abutted with the steering block 500.I.e. steering block 500 is set to floor 100 in the one side on floor, and steel twists
Line 400 is connected in one side of the steering block 500 far from floor 100, and specifically, the bottom of floor 100 is floor 100 vertical
Steering block 500, is set to the bottom of floor 100 by minimum position on direction, and after 400 tensioning of steel strand wires, steel strand wires 400 will
Apply power straight up to floor 100 by steering block 500, and then floor 100 is supported.
In above-described embodiment, by anchorage 300 that steel strand wires 400 are fixed, steel strand wires 400 are by steering block 500 to floor
100, which apply upward reagency, forms hogging moment, to offset the downward shape of upper load that the self weight of floor 100 and the conduction of floor 100 come
At sagging moment, when the upward reagency of application is more than that floor 100 is self-possessed and when 100 upper load of floor, floor 100 can be upward
Slight deformation occurs for antiarch, repaired with this reduce former floor 100 due to Lack of support, deformation is excessive and the crack that generates.It is logical
The External prestressed for crossing steel strand wires 400 and steering block 500 reinforces floor 100, without unloading to the load on floor 100, has and applies
The advantages of work is easy, short time limit.
As shown in figure 4, in order to preferably support floor 100, and play the role of support at slight crack well, at one
In embodiment, the steering block 500 includes steel pipe 520 and girder steel 510, and the girder steel 510 is set to the bottom of the floor 100
Portion, the steel pipe 520 are connect with the girder steel 510, and the steel pipe 520 and the middle part of the steel strand wires 400 abut against.This reality
It applies in example, the girder steel 510 is fashioned iron, and the fashioned iron is " H " shape fashioned iron, that is to say, that there are two " H " the shape fashioned iron tools
Plane, a plane and the bottom plane of the floor 100 abut against, another plane is abutted with the steel pipe 520, due to steel
Beam 510 has plane, therefore increases the contact area of girder steel 510 and steel pipe 520 well, and then increases entire 510 He of girder steel
Steel pipe 520 is to the force area of floor 100, and in the present embodiment, the arcuate surface of steel pipe 520 is conducive to fill with steel strand wires 400
Divide and abut, and avoid steel strand wires 400 and contacted with the edges and corners of rigid objects, so that the stress pressure that steel strand wires 400 are subject to
It is smaller, be conducive to the long-time service of steel strand wires 400, effectively extend the service life of steel strand wires 400；In addition, the shape of steel pipe 520
Be conducive to steel strand wires 400 to exert a force to floor 100, so that support effect is more preferably.
In above-described embodiment, in order to avoid being caused in the state of tensioning because of abrasion between steel strand wires 400 and steel pipe 520
The service life of steel strand wires 400 shortens, and wear-resistant gasket is provided on the steel pipe 520, and the steel strand wires 400 pass through the abrasionproof
Gasket is abutted with the steel pipe 520.Further, the height of the position of the perforation 310 in each beam body 200 is twisted higher than steel
The position of the height for the position that line 400 is abutted with steel pipe 520, i.e., each perforation 310 is located at the highest in the vertical direction of beam body 200
Position, and two perforation 310 open up height it is identical, it is corresponding, in this way, the both ends of steel strand wires 400 is enabled to be connected to
Higher position in beam body 200, and then power straight up is applied to floor 100 by steering block 500 after tensioning, it can
Good support is played to floor 100.
In one embodiment, the anchorage 300 is strand tapered anchorage 300.That is two anchorages 300 are all strand tapered anchorage
300, by using strand tapered anchorage 300, when the both ends of steel strand wires 400 are each passed through two anchorages 300 and consolidate to steering block 500
After fixed, steel strand wires 400 are fixed using strand tapered anchorage 300, and by 400 both ends excess portion sub-cut of steel strand wires
Fall, completes entire fixation procedure.
As shown in Figures 2 and 3, in one embodiment, the quantity of the steel strand wires 400 is two, the anchorage 300
Quantity is four, and is opened up in each beam body 200 there are two the perforation 310, and one in each beam body 200
The perforation 310 is corresponding with the perforation 310 in another beam body 200 to be opened up.Specifically, two steel strand wires
400 are arranged in parallel, and the middle part of the steel strand wires 400 is abutted with one end of the steering block 500, another steel strand wires
400 middle part is abutted with the other end of the steering block 500.Further, by abutting one respectively at the both ends of steering block 500
Steel strand wires 400, and each steel strand wires 400 are fixed between two beam bodies 200 by two anchorages 300 respectively, and by each
The middle part of steel strand wires 400 is abutted with steering block 500, can steering block 500 be fixed and be given well one vertically
Upward power can play good branch to floor 100 so that steering block 500 applies a power straight up to floor 100
Support.It is noted that due between two steel strand wires 400 mutually usually, at the same time tense in the state of, for turn to
The active force of block 500 be it is identical, therefore steering block 500 at both ends simultaneously by the power straight up of steel strand wires 400 when, can be very
It is connected to well on the bottom surface of floor 100, and by using two steel strand wires 400 steering block 500 is risen to floor 100
To good support.
In one embodiment, the quantity of the steel strand wires 400 is three, and the quantity of the anchorage 300 is six, and every
Open up that there are three the perforation 310 in one beam body 200, and the perforation 310 of one in each beam body 200 with it is another
310 correspondence of perforation in one beam body 200 opens up.Specifically, three steel strand wires 400 are arranged in parallel, and three
Steel strand wires 400 are located at the both ends of steering block 500 there are also middle position, the middle part of the steel strand wires 400 with described turn
It being abutted to one end of block 500, the middle part of another steel strand wires 400 is abutted with the other end of the steering block 500, and remaining one
The middle part of the steel strand wires 400 and the middle position of the steering block 500 abut against, further, by steering block 500
Both ends and middle position abut a steel strand wires 400 respectively, and each steel strand wires 400 are fixed on two by two anchorages 300 respectively
Between a beam body 200, and abutted by the middle part of each steel strand wires 400 with steering block 500, it can be well to steering block 500
It is fixed, and a power straight up can be given, so that steering block 500 applies a power straight up to floor 100,
Good support can be played to floor 100.In order to enable entire steering block 500 can be well secured to the bottom surface of floor 100
On, more steel strand wires 400 are abutted in the middle position of steering block 500, that is to say, that turn by three steel strand wires 400
It is more firm to block 500.
Perforation 310 is passed through for the ease of steel strand wires 400, in one embodiment, 310 width of perforating is carried on the back by beam body 200
From steering block 500 to towards steering block 500 while be gradually increased, that is, perforate 310 width by 500 direction of steering block
Beam body 200 to backwards to beam body 200 while be gradually reduced, in this way, be conducive to steel strand wires 400 beam body 200 and turn to
Position has biggish freedom degree between block 500, so that steel strand wires 400 is easy for installation, in addition, steel strand wires 400 is avoided to turn
To excessively tight between block 500 and beam body 200, effective service life for extending steel strand wires 400.Further, since perforation 310 is being carried on the back
Width to the one side of beam body 200 is smaller, the limitation by the side wall of mounting hole to steel strand wires 400, so that steel strand wires 400 are at end
The freedom degree at end is lower, is conducive to fixed steel strand wires 400, so that steel strand wires 400 are more steady in end and the connection of anchorage 300
Gu.
In one embodiment, each beam body 200 is provided in the one side of the anchorage 300 and is provided with billet
600, and the anchorage 300 is connect by the billet 600 with the beam body 200, that is, anchorage 300 passes through billet
600 abut with beam body 200, specifically, billet 600 with beam body 200 backwards to steering block 500 while abut, steel pad
The another side of plate 600 is abutted with anchorage 300, is that anchorage 300 provides support by billet 600, so that anchorage in the present embodiment
300 can be connected to beam body 200 by billet 600, increase the contact area with beam body 200, increase forced area, and then subtract
The pressure of subsection area avoids anchorage 300 from being damaged by larger pulling force, and protects the surface of beam body 200 well.
In above-described embodiment, several screw holes are offered on the billet 600, and connect with beam body 200 by bolt, made
The connection for obtaining billet 600 is more firm.Further, the billet 600 can also have through other prior arts and the beam
Body 200 connects, not burdensome description in the present embodiment.
For further reinforced ground tackle 300, anchorage 300 is enabled preferably to fix steel strand wires 400, so that steel strand wires
400 can preferably be fixed steering block 500, in one embodiment, each beam body 200 far from steering block 500 one
Concrete cover is provided on face, the concrete cover is covered in the outside of the anchorage 300, specifically, twists in steel
After line 400 is fixed, extra steel strand wires 400 are cut off, are then coated on the anchorage completely using concrete cover
300 outside.Further, concrete cover is pea gravel concreten protective layer, i.e., the material of concrete cover is microlith
Concrete.By the way that concrete cover is arranged, anchorage 300 can be protected, also, concrete cover and beam body 200
Connection further anchorage 300 can be reinforced.
In addition, used 400 tensile strength of steel strand wires can reach 1860N/m in any of the above-described embodiment2, pass through anchor
Tool 300, steering block 500 act on floor 100, can greatly increase 100 bearing capacity of floor and reduction floor 100 is bent downwardly
Floor 100, can be self-possessed by deformation and upper load passes through prestress wire 400 and is directly conducted to beam body 200, and raising has been cracked
The safety of floor 100 and durability.
In addition, also having the advantages that simple process, external prestressing strengthening floor 100 does not need original concrete guarantor that polishes
Sheath does not need the original upper load of removal, cancels on-site concrete operation and weld job.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
In conclusion it is restricted embodiment of the invention, all those skilled in the art that above embodiment, which is not,
The modification carried out on the basis of substantive content of the invention or equivalent deformation, in technology scope of the invention.
Claims (10)
1. the prestressed reinforcement device of Cracks On Concrete Floors closure characterized by comprising at least a floor, at least two
Beam body, at least two anchorages, at least a steel strand wires and an at least steering block；
Two beam bodies are connect with the floor respectively, two beam body interval settings, and two beam bodies are set in parallel
It sets；
The steering block is set on the floor, and the steering block is set between two beam bodies, the steering block point
It is not arranged in parallel with two beam bodies；
A perforation is at least offered in each beam body, and the perforation in two beam bodies is correspondingly arranged, it is described
One end of steel strand wires passes through a perforation and connect with an anchorage, and the other end passes through another perforation and another anchor
Tool connection, and the steel strand wires are connect with the steering block.
2. the prestressed reinforcement device of Cracks On Concrete Floors closure according to claim 1, it is characterised in that: described turn
The bottom of the floor is set to block, and the middle part of the steel strand wires is abutted with the steering block.
3. the prestressed reinforcement device of Cracks On Concrete Floors closure according to claim 1, it is characterised in that: described turn
It include steel pipe and girder steel to block, the girder steel is set to the bottom of the floor, and the steel pipe is connect with the girder steel, and described
It is abutted against in the middle part of steel pipe and the steel strand wires.
4. the prestressed reinforcement device of Cracks On Concrete Floors closure according to claim 3, it is characterised in that: the steel
Wear-resistant gasket is provided on pipe, the steel strand wires are abutted by the wear-resistant gasket with the steel pipe.
5. the prestressed reinforcement device of Cracks On Concrete Floors closure according to claim 1, it is characterised in that: the anchor
Tool is strand tapered anchorage.
6. the prestressed reinforcement device of Cracks On Concrete Floors closure according to claim 1, it is characterised in that: the steel
The quantity of twisted wire is two.
7. the prestressed reinforcement device of Cracks On Concrete Floors closure according to claim 6, it is characterised in that: the anchor
The quantity of tool is four.
8. the prestressed reinforcement device of Cracks On Concrete Floors closure according to claim 7, it is characterised in that: Mei Yisuo
The perforation there are two opening up in beam body is stated, and the perforation of one in each beam body and one in another beam body
The perforation correspondence opens up.
9. the prestressed reinforcement device of Cracks On Concrete Floors closure according to claim 8, it is characterised in that: two institutes
Steel strand wires are stated to be arranged in parallel.
10. the prestressed reinforcement device of Cracks On Concrete Floors closure according to claim 9, it is characterised in that: an institute
The middle part for stating steel strand wires is abutted with one end of the steering block, the middle part of another steel strand wires and the other end of the steering block
It abuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083367.7A CN109853980A (en) | 2019-01-29 | 2019-01-29 | The prestressed reinforcement device of Cracks On Concrete Floors closure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083367.7A CN109853980A (en) | 2019-01-29 | 2019-01-29 | The prestressed reinforcement device of Cracks On Concrete Floors closure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109853980A true CN109853980A (en) | 2019-06-07 |
Family
ID=66896689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910083367.7A Pending CN109853980A (en) | 2019-01-29 | 2019-01-29 | The prestressed reinforcement device of Cracks On Concrete Floors closure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109853980A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201310201Y (en) * | 2008-11-20 | 2009-09-16 | 贵阳铝镁设计研究院 | Reinforced structure on concrete floor crack |
| CN103388408A (en) * | 2013-07-28 | 2013-11-13 | 桂林理工大学 | External pre-stressed tendon reinforcing steering block for building structure |
| CN104929381A (en) * | 2015-06-02 | 2015-09-23 | 项剑锋 | Steel-support non-cohesive steel strand lower support type prestress floor reinforcing method |
| CN107654085A (en) * | 2017-09-20 | 2018-02-02 | 浙江剑锋加固工程有限公司 | A kind of method for reinforcing H-shaped girder steel and more Span Continuous steel Eurya plant bars |
| CN208105927U (en) * | 2018-03-19 | 2018-11-16 | 保定市建筑设计院有限公司 | A kind of later period strenthening member of existing building steel truss |
| CN208280652U (en) * | 2018-06-13 | 2018-12-25 | 广东庆余堂建筑科技有限公司 | A kind of flooring ruggedized construction |
-
2019
- 2019-01-29 CN CN201910083367.7A patent/CN109853980A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201310201Y (en) * | 2008-11-20 | 2009-09-16 | 贵阳铝镁设计研究院 | Reinforced structure on concrete floor crack |
| CN103388408A (en) * | 2013-07-28 | 2013-11-13 | 桂林理工大学 | External pre-stressed tendon reinforcing steering block for building structure |
| CN104929381A (en) * | 2015-06-02 | 2015-09-23 | 项剑锋 | Steel-support non-cohesive steel strand lower support type prestress floor reinforcing method |
| CN107654085A (en) * | 2017-09-20 | 2018-02-02 | 浙江剑锋加固工程有限公司 | A kind of method for reinforcing H-shaped girder steel and more Span Continuous steel Eurya plant bars |
| CN208105927U (en) * | 2018-03-19 | 2018-11-16 | 保定市建筑设计院有限公司 | A kind of later period strenthening member of existing building steel truss |
| CN208280652U (en) * | 2018-06-13 | 2018-12-25 | 广东庆余堂建筑科技有限公司 | A kind of flooring ruggedized construction |
Non-Patent Citations (1)
| Title |
|---|
| 王春武等: "《钢筋工长》", 31 October 2012, 华中科技大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101022853B1 (en) | Composite girder for constructing bridge | |
| CA2918395C (en) | Pre-stressed steel structure and method for pre-stressing a steel structure | |
| KR100989586B1 (en) | Girder for rahmen structure, the making method and bridge construction method using girder for rahmen structure | |
| KR100664698B1 (en) | Complementing apparatus of tensile strength in a prestress concrete gurder bridge | |
| US20030093961A1 (en) | Composite structural member with longitudinal structural haunch | |
| CN219034078U (en) | Protective structure for slow-bonding prestressed reinforcement sheath rib groove | |
| KR102027813B1 (en) | Built-Up Beam | |
| JP3728391B2 (en) | Continuous girder bridge structure | |
| JP4416337B2 (en) | Construction method of the replacement composite floor slab girder bridge | |
| CN100465377C (en) | Baseboard cable horizontal arrangement prestress concrete variable cross-section box girder bridge and construction method thereof | |
| CN207812307U (en) | The construction system of Cable stayed Bridge Main Tower and steel anchor beam | |
| CN109137710A (en) | Curve combination beam bridge hogging moment area inner lining concrete floor combination structure | |
| CN109853980A (en) | The prestressed reinforcement device of Cracks On Concrete Floors closure | |
| KR102132338B1 (en) | Steel Composite PSC Girder Including Arched Reinforcement | |
| JPS6257773B2 (en) | ||
| CN208844443U (en) | A kind of box beam ruggedized construction based on arch | |
| CN109826457A (en) | Concrete building structures and beams of concrete prestressed reinforcement device | |
| CN112323619A (en) | Novel hinge joint connecting structure of assembled beam (plate) bridge | |
| JP2003293323A (en) | Reinforcement structure of continuous girder bridge | |
| KR100485060B1 (en) | Joint between steel superstructure and reinforced concrete substructure of rahmen typed hybrid bridge | |
| CN205576717U (en) | External prestress 's back continuous bridge of letter is earlier adopted to construction time | |
| CN220685787U (en) | Bridge deck connecting device for steel structure arch bridge | |
| KR100439470B1 (en) | Beam for Bridge | |
| KR101120245B1 (en) | reverse triangle shaped prestressed concrete girder | |
| CN212956124U (en) | Combined multi-span bridge plate connecting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190607 |
|
| RJ01 | Rejection of invention patent application after publication |