CN109024220A - Steel plate reinforces method and low deck-molding i shaped steel slab and girder - Google Patents
Steel plate reinforces method and low deck-molding i shaped steel slab and girder Download PDFInfo
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- CN109024220A CN109024220A CN201810974866.0A CN201810974866A CN109024220A CN 109024220 A CN109024220 A CN 109024220A CN 201810974866 A CN201810974866 A CN 201810974866A CN 109024220 A CN109024220 A CN 109024220A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 193
- 239000010959 steel Substances 0.000 title claims abstract description 193
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000000465 moulding Methods 0.000 title claims abstract description 16
- 238000005266 casting Methods 0.000 claims abstract description 10
- 238000007711 solidification Methods 0.000 claims abstract description 7
- 230000008023 solidification Effects 0.000 claims abstract description 7
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 26
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 210000001364 upper extremity Anatomy 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000012360 testing method Methods 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
- 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
- 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
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
-
- 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
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
- E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
- E04C2003/0452—H- or I-shaped
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to steel structure technology fields more particularly to a kind of steel plate to reinforce method, comprising the following steps: step 1: carrying out pre- tensioning to steel plate, so that steel plate obtains extruding force, and steel plate is made to keep pressured state；Step 2: the casting concrete layer at least one surface parallel with extruding force of steel plate；Step 3: after concrete layer solidification, removing original holding structure for making steel plate keep pressured state, and concrete layer is made to obtain the prestressing force contrary with extruding force simultaneously.According to the technical solution of the present invention, steel construction can be solved the problems, such as because span is big and loads insufficient rigidity brought by weight by least rolled steel dosage.Meanwhile a kind of low deck-molding i shaped steel slab and girder is also claimed in the present invention.
Description
Technical field
The present invention relates to steel structure technology fields more particularly to a kind of steel plate to reinforce method and low deck-molding i shaped steel plate-girder
Structure.
Background technique
In recent years, steel construction building, in bridge using more and more extensive.At present in the application process of steel construction
In, in order to solve the problems, such as bring insufficient rigidity due to large span heavy structure, generally use improve Design of Steel Structural Element Sections height with
And provide prestressed mode to steel construction and be resolved, however the former increases the dosage of steel, and the latter then needs using big
The presstressed reinforcing steel of amount, two methods have the defects that certain from economic considerations.
In view of the presence of the above problem, the present inventor is based on being engaged in such product design manufacture practice warp abundant for many years
It tests and professional knowledge, and cooperates the utilization of scientific principle, be actively subject to research and innovation, reinforce method and low beam to found a kind of steel plate
High i shaped steel slab and girder makes it with more practicability.By constantly studying, designing, and sample is studied repeatedly and is changed
Into rear, the present invention having practical value is created finally.
Summary of the invention
It is a primary object of the present invention to, a kind of steel plate is provided and reinforces method and low deck-molding i shaped steel slab and girder, with
Steel construction is solved by least rolled steel dosage because span is big and loads Rigidity brought by weight.
The object of the invention to solve the technical problems adopts the following technical solutions to realize: steel plate reinforces method,
The following steps are included:
Step 1: pre- tensioning being carried out to steel plate, so that the steel plate obtains extruding force, and steel plate is made to keep pressured state；
Step 2: the casting concrete layer at least one surface parallel with the extruding force of the steel plate；
Step 3: after the concrete layer solidification, removing original holding structure for making steel plate keep pressured state, and make simultaneously
The concrete layer obtains the prestressing force contrary with the extruding force.
Further, pre- tensioning is carried out to the steel plate, specifically: at least parallel side-by-side is provided with two in the steel plate
Through through-hole, be inserted into the through-hole for carrying out pretensioned presstressed reinforcing steel to the steel plate, and after tensioning to steel plate by
Pressure condition is kept.
Further, the concrete layer is covered in the compression face of the steel plate.
Low deck-molding i shaped steel slab and girder, comprising: top flange steel plate and lower flange steel plate, and for the upper limb
At least one longitudinal steel plate that balsh plate and lower flange steel plate are attached；
Wherein, the top flange steel plate and lower flange steel plate are pre-stressed steel plate, wherein at least described top flange steel plate uses
Following steps obtain the prestressing force:
Step 1: pre- tensioning being carried out to the top flange steel plate, so that the top flange steel plate obtains extruding force, and keeps steel plate
Pressured state；
Step 2: the casting concrete layer on the top flange upper surface of steel plate；
Step 3: after the concrete layer solidification, removing the holding structure of original steel plate pressured state and make simultaneously described
Concrete layer obtains the prestressing force contrary with the extruding force.
Further, at least parallel side-by-side is provided with two through through-hole in the top flange steel plate, described to run through through-hole
Length direction be parallel to the length direction of the beam body, the parallel direction through through-hole is parallel to the width of the beam body
Direction；
For carrying out to the top flange steel plate, pretensioned presstressed reinforcing steel insertion is described to be run through in through-hole to the upper limb balsh
Plate carries out tensioning, and keeps before concrete layer solidification to the steel plate pressured state.
Further, after the completion of the concrete layer of the top flange upper surface of steel plate pours, the presstressed reinforcing steel is removed,
For secondary use.
Further, the lower flange steel plate obtains the prestressing force using following methods:
At least parallel side-by-side is provided with two through through-hole in the lower flange steel plate, and the length direction through through-hole is parallel
In the length direction of the beam body, the parallel direction through through-hole is parallel to the width direction of the beam body；
Be inserted into the through-hole for carrying out pretensioned presstressed reinforcing steel to the lower flange steel plate, and after tensioning to steel plate by
Tension state is kept.
Further, it is inserted into the presstressed reinforcing steel used in the lower flange steel plate and is derived from the top flange steel plate.
Further, the lower flange steel plate is covered with the second concrete layer, and the thickness of second concrete layer is less than
The thickness of the concrete layer.
By above-mentioned technical proposal, the present invention is at least had the advantage that
The depth of section greatly across beam body in heavy structure is reduced, increases concrete parts in its compressive region, and will be pre- after tensioning
Stress rib carries out secondary use, reduces difficulty of construction, reduces rolled steel dosage, improves prestressing force service efficiency, thus more suitable for
It is practical, and with the utility value in industry.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram that light plate of the present invention is reinforced；
Fig. 2 is the schematic diagram of steel plate tensioning；
Fig. 3 is a kind of casting position schematic diagram of concrete layer；
Fig. 4 is the schematic diagram of low deck-molding i shaped steel slab and girder；
Fig. 5 is the schematic diagram of box steel plate girder construction；
Fig. 6 ~ Fig. 8 is respectively the schematic diagram of each processing step in an embodiment；
Mark meaning in figure: presstressed reinforcing steel 1, runs through through-hole 21, concrete layer 3, top flange steel plate 4, lower flange steel plate at steel plate 2
5, longitudinal steel plate 6.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, detailed description of specific embodiments of the present invention as after.
The embodiment of the present invention is write in a progressive manner.
Steel plate reinforces method, comprising the following steps:
Step 1: pre- tensioning being carried out to steel plate 2, so that steel plate 2 obtains extruding force, and steel plate is made to keep pressured state；
Step 2: the casting concrete layer 3 at least one surface parallel with extruding force of steel plate 2；
Step 3: after concrete layer 3 solidifies, removing original holding structure for making steel plate keep pressured state, and make coagulation simultaneously
Soil layer 3 obtains the prestressing force contrary with extruding force.
As shown in Figure 1, making concrete layer 3 obtain pre-tensile stress in above-mentioned steel plate reinforcement method by steel plate 2, saving
The holding structure of pre-tensile stress to reduce the usage amount of steel, while passing through the setting of concrete layer 3, can not only play
Protective effect to steel plate 2 is more able to achieve transmitting of the prestressing force between steel plate 2 and concrete layer 3, thus in identical performance
Under it is required that, the thickness of steel plate 2 is effectively reduced, thus the dosage for saving steel to a greater extent.
As the preferred of above-described embodiment, as shown in Fig. 2, carrying out pre- tensioning to steel plate 2 specifically: at least flat in steel plate 2
Row is set side by side with two and is inserted into through-hole 21 through through-hole 21 for carrying out pretensioned presstressed reinforcing steel 1 to steel plate 2, and
Steel plate pressured state is kept after tensioning.In this prioritization scheme, prestressed acquisition can refer to post-tensioned construction process pair
Steel plate 2 carries out pre- tensioning, and construction technology is mature, it is easy to accomplish, through this embodiment in steel plate reinforce method steel plate 2 existed
The tension structure of presstressed reinforcing steel 1 etc. is detached from during use (after the completion of i.e. concrete layer 3 pours), presstressed reinforcing steel 1 can be at it
Secondary use during remaining steel plate 2 is reinforced.
As the preferred of above-described embodiment, concrete layer 3 is covered in the compression face of steel plate 2, is arranged by this, be may make mixed
Solidifying soil layer 3 plays the good compressive property of concrete.Certainly, in the case where not considering the above problem, as shown in figure 3, will mix
Solidifying soil layer 3 is cast on the side wall of steel plate 2 also within protection scope of the present invention, and only side wall relative area is smaller and can make
Obtain concrete under tension, less effective.
Low deck-molding i shaped steel slab and girder, comprising: top flange steel plate 4 and lower flange steel plate 5, and for top flange
At least one longitudinal steel plate 6 that steel plate 4 and lower flange steel plate 5 are attached；Wherein, top flange steel plate 4 and lower flange steel plate 5 are
Pre-stressed steel plate, wherein at least top flange steel plate 4 obtains prestressing force using following steps:
Step 1: pre- tensioning being carried out to top flange steel plate 4, so that top flange steel plate 4 obtains extruding force, and keeps top flange steel plate 4
Pressured state；
Step 2: the casting concrete layer 3 on 4 upper surface of top flange steel plate；
Step 3: after concrete layer 3 solidifies, removing original holding structure for making top flange steel plate 4 keep pressured state, and simultaneously
So that concrete layer 3 obtains the prestressing force contrary with extruding force.
During beam body use, the power that tensioning makes it in span centre generation hogging moment is previously applied to beam body, with part
Offset beam sagging moment in use.Its upper surface is under pressure, and concrete layer has preferable anti-pressure ability, common with steel plate
It uses, reduces the usage amount of steel, while being effectively increased the intensity of beam body.Concrete layer 3 carries out the surface of beam body
Cladding also can avoid the corrosion of steel construction, to increase the service life and safety of beam body.Wherein, when stringer 6 is arranged one
When, as shown in figure 4, entire beam body is structural I-beam；When being arranged two, as shown in figure 5, beam body is box-beam structure.
As the preferred of above-described embodiment, at least parallel side-by-side is provided with two through through-hole 21 in top flange steel plate 4, passes through
The length direction of reach through hole 21 is parallel to the length direction of beam body, and the width side of beam body is parallel to through the parallel direction of through-hole 21
To；It is inserted through in through-hole 21 for carrying out pretensioned presstressed reinforcing steel 1 to top flange steel plate 4 and top flange steel plate 4 is opened
It draws, and steel plate 4 pressured state in top flange is kept before concrete layer 3 solidifies.
After the completion of the concrete layer 3 of 4 upper surface of top flange steel plate pours, presstressed reinforcing steel 1 is removed, for secondary use.
As the preferred of above-described embodiment, according to the difference of 5 loading characteristic of top flange steel plate 4 and lower flange steel plate, to two
Person obtains prestressed mode and distinguishes.Lower flange steel plate 5 obtains prestressing force using following methods:
At least parallel side-by-side is provided with two through through-hole 21 in lower flange steel plate 5, and the length direction through through-hole 21 is parallel to
The length direction of beam body is parallel to the width direction of beam body through the parallel direction of through-hole 21；For being carried out to lower flange steel plate 5
Pretensioned presstressed reinforcing steel 1 is inserted into through-hole 21, and is kept after tensioning to 5 tension state of lower flange steel plate.
During beam body use, because of the presence of moment of flexure, so that the lower surface under tension of beam body, concrete layer
Tensile capacity is poor, therefore carries out the loading characteristic that holding is more in line with lower flange steel plate 5 to prestressing force by presstressed reinforcing steel 1.
By using different prestressing force hold modes to top flange steel plate 4 and lower flange steel plate 5, so that entire low deck-molding i shaped steel
Slab and girder obtains better service performance, to can effectively reduce beam body height, and in reduction under the effect of identical load
The thickness of edge of a wing steel plate 4 and lower flange steel plate 5, so that construction cost be effectively reduced.
As the preferred of above-described embodiment, it is inserted into presstressed reinforcing steel 1 used in lower flange steel plate 5 and is derived from top flange steel plate 4.
By this preferred embodiment, the use condition of the presstressed reinforcing steel 1 of secondary use is limited, because primary answer using with the pre- of secondary use
Power muscle 1 has differences, therefore is applied to occasion and distinguishes the standardization that can effectively ensure that whole building or bridge construction.
As the preferred of above-described embodiment, lower flange steel plate 5 is covered with the second concrete layer, the thickness of the second concrete layer
Less than the thickness of concrete layer 3.Lower flange steel plate 5 can be protected in this way, avoid it from corroding, while smaller
Thickness can reduce the self weight of entire beam body, economy is more preferably.
Specifically, by taking I-shaped beam body as an example, the implementation process that the present invention will be described in detail, comprising the following steps:
Step 1: presstressed reinforcing steel 1 being placed on and running through in through-hole 21 for top flange steel plate 4 carries out tensioning, as shown in fig. 6, making top flange
Steel plate 4 generates inside contraction distortion, and after the completion of prestress application, top flange steel plate has overhanging trend；
Step 2: as shown in fig. 7, concrete at this time is unstress state in 4 top casting concrete layer 3 of top flange steel plate,
Presstressed reinforcing steel 1 is removed, top flange steel plate 4 can apply the concrete layer 3 for pouring completion thereon pre- due to the recovery trend of shape
Tensile stress；
Step 3: as shown in figure 8, by the presstressed reinforcing steel 1 crossed used in step 2 be placed on lower flange steel plate 5 through through-hole 21
It is interior, two times tensioning is carried out, compressive pre-stress is applied to lower flange steel plate 5, presstressed reinforcing steel 1 at this time does not further take out, with bottom wing balsh
The common stress of plate 5；
Step 4: to protect lower flange steel plate 5, preventing its corrosion, a little concrete is poured on lower flange steel plate 5.
In above-described embodiment, have at least the following advantages:
(1) it by the way that the protective effect to top flange steel plate 4 can not only be played in compressive region casting concrete layer 3, can more play mixed
The solidifying good compressive property of soil；
(2) before the concrete for pouring 4 part of top flange steel plate, by tensioned prestressing bar 1, top flange steel plate 4 is made to generate receipts
Compression deformation, after the completion of concrete layer 3 pours, top flange steel plate 4 deforms pervious shape due to needing to restore, can be to top coagulation
Soil applies a pretension, this construction procedure realizes transmitting of the prestressing force between steel plate and concrete；
(3) after the completion of concrete layer 3 pours, presstressed reinforcing steel 1 is removed and placed into the tensioning at the steel plate of lower flange, realizes pre- answer
The secondary use of power；
(4) deck-molding under by identical load action, can be being reduced, is reducing lower flange plate thickness, good economy performance.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above are modified or are modified
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (9)
1. steel plate reinforces method, which comprises the following steps:
Step 1: pre- tensioning being carried out to steel plate (2), so that the steel plate (2) obtains extruding force, and steel plate is made to keep pressured state；
Step 2: the casting concrete layer (3) at least one surface parallel with the extruding force of the steel plate (2)；
Step 3: after concrete layer (3) solidification, removing original holding structure for making steel plate keep pressured state, and make simultaneously
It obtains the concrete layer (3) and obtains the prestressing force contrary with the extruding force.
2. steel plate according to claim 1 reinforces method, which is characterized in that carry out pre- tensioning to the steel plate (2), specifically
Are as follows: at least parallel side-by-side is provided with two through through-hole (21), for being opened in advance to the steel plate (2) in the steel plate (2)
The presstressed reinforcing steel (1) of drawing is inserted into the through-hole (21), and is kept after tensioning to steel plate pressured state.
3. steel plate according to claim 1 reinforces method, which is characterized in that the concrete layer (3) is covered in the steel
The compression face of plate (2).
4. low deck-molding i shaped steel slab and girder characterized by comprising top flange steel plate (4) and lower flange steel plate (5), with
And at least one longitudinal steel plate (6) for being attached to the top flange steel plate (4) and lower flange steel plate (5)；
Wherein, the top flange steel plate (4) and lower flange steel plate (5) are pre-stressed steel plate, wherein at least described upper limb balsh
Plate (4) obtains the prestressing force using following steps:
Step 1: pre- tensioning being carried out to the top flange steel plate (4), so that the top flange steel plate (4) obtains extruding force, and is protected
Hold steel plate pressured state；
Step 2: the casting concrete layer (3) on top flange steel plate (4) upper surface；
Step 3: after concrete layer (3) solidification, removing the holding structure of original steel plate pressured state, and make simultaneously
The concrete layer (3) obtains the prestressing force contrary with the extruding force.
5. low deck-molding i shaped steel slab and girder according to claim 4, which is characterized in that the top flange steel plate (4)
Inside at least parallel side-by-side is provided with two through through-hole (21), and the length direction through through-hole (21) is parallel to the beam body
Length direction, the parallel direction through through-hole (21) is parallel to the width direction of the beam body；
It is described interior to institute through through-hole (21) for carrying out pretensioned presstressed reinforcing steel (1) insertion to the top flange steel plate (4)
It states top flange steel plate (4) and carries out tensioning, and the steel plate pressured state is kept before the concrete layer (3) solidification.
6. low deck-molding i shaped steel slab and girder according to claim 5, which is characterized in that the top flange steel plate (4)
After the completion of the concrete layer (3) of upper surface pours, the presstressed reinforcing steel (1) is removed, for secondary use.
7. low deck-molding i shaped steel slab and girder according to claim 6, which is characterized in that the lower flange steel plate (5)
The prestressing force is obtained using following methods:
At least parallel side-by-side is provided with two through through-hole (21) in the lower flange steel plate (5), described through through-hole (21)
Length direction is parallel to the length direction of the beam body, and the parallel direction through through-hole (21) is parallel to the width of the beam body
Spend direction；
It is inserted into the through-hole (21) for carrying out pretensioned presstressed reinforcing steel (1) to the lower flange steel plate (5), and in tensioning
The steel plate tension state is kept afterwards.
8. low deck-molding i shaped steel slab and girder according to claim 7, which is characterized in that be inserted into the lower flange steel plate
(5) presstressed reinforcing steel (1) used in is derived from the top flange steel plate (4).
9. low deck-molding i shaped steel slab and girder according to claim 7, which is characterized in that the lower flange steel plate (5)
It is covered with the second concrete layer, the thickness of second concrete layer is less than the thickness of the concrete layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974866.0A CN109024220A (en) | 2018-08-24 | 2018-08-24 | Steel plate reinforces method and low deck-molding i shaped steel slab and girder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974866.0A CN109024220A (en) | 2018-08-24 | 2018-08-24 | Steel plate reinforces method and low deck-molding i shaped steel slab and girder |
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|---|---|
| CN109024220A true CN109024220A (en) | 2018-12-18 |
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| CN201810974866.0A Pending CN109024220A (en) | 2018-08-24 | 2018-08-24 | Steel plate reinforces method and low deck-molding i shaped steel slab and girder |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059953A (en) * | 1990-09-14 | 1992-04-01 | 同济大学 | Prepressed anchor fixing device with steel tube |
| CN1099086A (en) * | 1993-04-01 | 1995-02-22 | 大能产业株式会社 | Prestressing force composite beam works job practices and be used for the prestressing force composite beam of this method |
| KR20010044745A (en) * | 2001-03-21 | 2001-06-05 | 강창구 | A Steel Beam Adapted Prestress in Web Width of Steel Beam Using H-beam or I-beam and Method of Fabricating the same |
| US6588160B1 (en) * | 1999-08-20 | 2003-07-08 | Stanley J. Grossman | Composite structural member with pre-compression assembly |
| CN201411822Y (en) * | 2009-05-27 | 2010-02-24 | 北京京诚华宇建筑设计研究院有限公司 | Novel pre-tensioned steel-concrete composite beam |
| CN101845851A (en) * | 2010-04-09 | 2010-09-29 | 武汉理工大学 | Tendon-free prestressed concrete structure |
| CN106284046A (en) * | 2016-10-09 | 2017-01-04 | 北京市市政工程设计研究总院有限公司 | Bridge steel concrete equals curved combination beam manufacture method |
-
2018
- 2018-08-24 CN CN201810974866.0A patent/CN109024220A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059953A (en) * | 1990-09-14 | 1992-04-01 | 同济大学 | Prepressed anchor fixing device with steel tube |
| CN1099086A (en) * | 1993-04-01 | 1995-02-22 | 大能产业株式会社 | Prestressing force composite beam works job practices and be used for the prestressing force composite beam of this method |
| US6588160B1 (en) * | 1999-08-20 | 2003-07-08 | Stanley J. Grossman | Composite structural member with pre-compression assembly |
| KR20010044745A (en) * | 2001-03-21 | 2001-06-05 | 강창구 | A Steel Beam Adapted Prestress in Web Width of Steel Beam Using H-beam or I-beam and Method of Fabricating the same |
| CN201411822Y (en) * | 2009-05-27 | 2010-02-24 | 北京京诚华宇建筑设计研究院有限公司 | Novel pre-tensioned steel-concrete composite beam |
| CN101845851A (en) * | 2010-04-09 | 2010-09-29 | 武汉理工大学 | Tendon-free prestressed concrete structure |
| CN106284046A (en) * | 2016-10-09 | 2017-01-04 | 北京市市政工程设计研究总院有限公司 | Bridge steel concrete equals curved combination beam manufacture method |
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Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |