CN108103962A - A kind of bracing means and its construction method of concrete-bridge crackle - Google Patents
A kind of bracing means and its construction method of concrete-bridge crackle Download PDFInfo
- Publication number
- CN108103962A CN108103962A CN201711417779.7A CN201711417779A CN108103962A CN 108103962 A CN108103962 A CN 108103962A CN 201711417779 A CN201711417779 A CN 201711417779A CN 108103962 A CN108103962 A CN 108103962A
- Authority
- CN
- China
- Prior art keywords
- reinforcing bar
- concrete
- bridge
- crackle
- thread
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of bracing means and its construction method of concrete-bridge crackle.The bracing means of the concrete-bridge crackle is taken root in including 2 into reinforcing bar（1）, 1 piece high-strength screw-thread steel muscle（2）, 2 pieces of punched steel plates（3）With 2 nuts（4）.It is implanted into reinforcing bar（1）It is implanted by the method for bar planting in concrete slab, by punched steel plate（3）With being implanted into reinforcing bar（1）It is welded in position, passes through high-strength screw-thread steel muscle（2）Connect the punched steel plate of both sides（3）, pass through rotating nuts at both ends（4）Adjust high-strength screw-thread steel muscle（2）With punched steel plate（3）Connection it is elastic, draw crackle over to one's side, make its closure, prevent crackle from extending again.The present invention has the advantages that effective reinforced concrete bridge crack, and easy to operate, the common easy acquirement of material requested, whole implementation process safety is efficient, has a good application prospect.
Description
Technical field
The invention belongs to concrete-bridge field of reinforcement, are related to bracing means and its construction of a kind of concrete-bridge crackle
Method.
Background technology
Concrete is one of most important construction material in engineering now.Concrete is due to abundant raw material, cheap, anti-
The features such as Compressive Strength is high so that extensive use concrete material in engineering, thus it is also increasing to the demand of concrete.However
Concrete material itself is there is also some defects, such as is easy to dry shrinkage and cracking, and tensile strength is low etc..Reinforced Concrete Bridge is mesh
The primary structure form of front axle beam, so far, China have built substantial amounts of Reinforced Concrete Bridge, bridge construction technical merit
Reach world-class.But while attention bridge is newly-built, the maintenance management to the concrete-bridge later stage is but ignored, is occurred
Substantial amounts of disease bridge.
In numerous bridge defects, bridge crack is one of main disease.Therefore, there is an urgent need for one kind quickly to add
Gu the bracing means of bridge crack, effective reinforced concrete bridge crack reduce the danger that bridge crack generates concrete-bridge
Evil.
The content of the invention
Goal of the invention：The present invention provides a kind of bracing means and its construction party of new reinforced concrete bridge crack
Method, can effective reinforced concrete bridge crack, operation is simple, the common easy acquirement of material requested, whole implementation process peace
Overall height is imitated, and reduces the harm that bridge crack generates concrete-bridge.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of bracing means of concrete-bridge crackle is taken root in including 2 into 1,2 piece of the reinforcing bar high-strength screw-thread steel of punched steel plate 3, one
Muscle 2 and 2 nuts 4,2 take root in the both sides that reinforcing bar 1 is implanted into crackle in concrete slab respectively, and 2 pieces of punched steel plates 3 are individually fixed in
2 take root in the outside of the free end into reinforcing bar 1, and the through hole on 2 pieces of punched steel plates 3 is coaxial, and high-strength screw-thread steel muscle 2 is worn through 2 pieces
The through hole of hole steel plate 3, the both ends of high-strength screw-thread steel muscle 2 are locked respectively by 2 nuts 4.
Implantation reinforcing bar 1 is close by bar planting method and concrete-bridge and together with being securely attached to.
Implantation reinforcing bar 1 is linked together with punched steel plate 3 by the method for welding, implantation reinforcing bar 1 and high-strength screw-thread steel muscle 2
Angle in 90 °.
The both ends of high-strength screw-thread steel muscle 2 are respectively equipped with long external screw thread, and the external screw thread of high-strength screw-thread steel muscle 2 is interior with nut 4
Screw thread mutually agrees with.
2 both ends of high-strength screw-thread steel muscle are respectively equipped with keyway vertically, and the through hole of punched steel plate 3 is equipped with to match with keyway
Key.
By locking 2 nuts 4 in opposite directions, the connection adjusted between high-strength screw-thread steel muscle 2 and 2 punched steel plates 3 is elastic, and 2
Chucking power is delivered separately to 2 by root punched steel plate 3 to be taken root in take root in into reinforcing bar 1,2 and draws crackle over to one's side into reinforcing bar 1.
The construction method of the bracing means of concrete-bridge crackle, comprises the following steps：
Step 1: first implantation reinforcing bar 1 is fixedly connected with punched steel plate 3；
Step 2: being implanted into the both sides of concrete-bridge internal fissure by reinforcing bar 1 is implanted into using bar planting method, and make 2 pieces of punched steel plates 3
The outside into reinforcing bar 1 is taken root in 2, and the through hole on 2 pieces of punched steel plates 3 is coaxial；
Step 3: after reinforcing bar 1 to be implanted is completely fixed in concrete, by high-strength screw-thread steel muscle 2 through 2 pieces of punched steel plates 3
Through hole, the both ends of high-strength screw-thread steel muscle 2 are socketed 2 nuts 4 respectively；
Step 4: the connection of high-strength screw-thread steel muscle 2 and punched steel plate 3 is adjusted by rotating the nut 4 at 2 both ends of high-strength screw-thread steel muscle
Elastic, chucking power is passed to implantation reinforcing bar 1 by punched steel plate 3, and implantation reinforcing bar 1 draws crackle over to one's side, makes crack closure.
In step 2, first the both sides drilling in the crack on concrete-bridge, then injects high-strength plant into the hole drilled out
Muscle glue is inserted into implantation reinforcing bar 1, and reinforcing bar and solidifying native bridge are bonded as one after high-strength bar planting adhesive curing.
Compared with the prior art, the invention has the advantages that：
（1）Simple in structure, the common easy acquirement of material requested is conducive to largely standardization production；
（2）With good reinforcement performance, operation is simple, can carry out bridge crack easily and fast and fix.Its own
Structure is very secured, easy for installation, time saving and energy saving, and whole implementation process safety is efficient, suitable for concrete-bridge crackle
It reinforces.
（3）It is particularly suitable for that crackle is wider, bridge plates of negligible amounts, easy for construction, cost is relatively low.
Description of the drawings
The present invention is best understood from order to realize, the present invention is made further specifically in conjunction with drawings and examples
It is bright.
Fig. 1 is the structure diagram of the bracing means of the concrete-bridge crackle of the present invention；
Fig. 2 is half broken away view of the bracing means of the concrete-bridge crackle of the present invention；
Fig. 3 is the front view of the bracing means of the concrete-bridge crackle of the present invention；
Fig. 4 is the side view of the bracing means of the concrete-bridge crackle of the present invention；
Fig. 5 is the top view of the bracing means of the concrete-bridge crackle of the present invention；
Fig. 6 is the partial enlarged view of high-strength screw-thread steel muscle;
Fig. 7 is the structure diagram of punched steel plate；
Fig. 8 is the bracing means operating diagram of the concrete-bridge crackle of the present invention；
Fig. 9 is the bracing means of the concrete-bridge crackle of the present invention and crack position schematic diagram.
Wherein, 1 it is implantation reinforcing bar, 2 be high-strength screw-thread steel muscle, 3 be punched steel plate, 4 is nut.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
As shown in figs 1-9, a kind of bracing means of concrete-bridge crackle is taken root in including 2 into 1,2 piece of punched steel plate of reinforcing bar
3rd, a high-strength screw-thread steel muscle 2 and 2 nuts 4,2 take root in the both sides that reinforcing bar 1 is implanted into crackle in concrete slab respectively, and 2 pieces are worn
Hole steel plate 3 is individually fixed in 2 outsides for taking root in free end into reinforcing bar 1, and the through hole on 2 pieces of punched steel plates 3 is coaxial, high-strength spiral shell
Line reinforcing bar 2 through the through hole of 2 pieces of punched steel plates 3, by 2 nuts 4 locked respectively by the both ends of high-strength screw-thread steel muscle 2.
Implantation reinforcing bar 1 is close by bar planting method and concrete-bridge and together with being securely attached to.
Implantation reinforcing bar 1 is linked together with punched steel plate 3 by the method for welding so that two parts securely connect, implantation
Reinforcing bar 1 and 2 angle in 90 ° of high-strength screw-thread steel muscle.
The both ends of high-strength screw-thread steel muscle 2 are respectively equipped with long external screw thread, and the external screw thread of high-strength screw-thread steel muscle 2 is interior with nut 4
Screw thread mutually agrees with.
2 both ends of high-strength screw-thread steel muscle are respectively equipped with keyway vertically, and the through hole of punched steel plate 3 is equipped with to match with keyway
Key.To prevent that own rotation occurs for high-strength screw-thread steel muscle 2 during tightening nut 4, realizes the position rotating of nut 4,
Enhance tension effect.
By locking 2 nuts 4 in opposite directions, the connection adjusted between high-strength screw-thread steel muscle 2 and 2 punched steel plates 3 is elastic, and 2
Chucking power is delivered separately to 2 by root punched steel plate 3 to be taken root in take root in into reinforcing bar 1,2 and draws crackle over to one's side into reinforcing bar 1.
The construction method of the bracing means of concrete-bridge crackle, comprises the following steps：
Step 1: first implantation reinforcing bar 1 is fixedly connected with punched steel plate 3；
Step 2: being implanted into the both sides of concrete-bridge internal fissure by reinforcing bar 1 is implanted into using bar planting method, and make 2 pieces of punched steel plates 3
The outside into reinforcing bar 1 is taken root in 2, and the through hole on 2 pieces of punched steel plates 3 is coaxial；
Step 3: after reinforcing bar 1 to be implanted is completely fixed in concrete, by high-strength screw-thread steel muscle 2 through 2 pieces of punched steel plates 3
Through hole, the both ends of high-strength screw-thread steel muscle 2 are socketed 2 nuts 4 respectively；
Step 4: the connection of high-strength screw-thread steel muscle 2 and punched steel plate 3 is adjusted by rotating the nut 4 at 2 both ends of high-strength screw-thread steel muscle
Elastic, chucking power is passed to implantation reinforcing bar 1 by punched steel plate 3, and implantation reinforcing bar 1 draws crackle over to one's side, makes crack closure.
In step 2, first the both sides drilling in the crack on concrete-bridge, then injects high-strength plant into the hole drilled out
Muscle glue is inserted into implantation reinforcing bar 1, and reinforcing bar and solidifying native bridge are bonded as one after high-strength bar planting adhesive curing.
The structure height of the bracing means of concrete-bridge crackle is symmetrical, is all by implantation reinforcing bar 1, punched steel plate 3 per side
Form, and pass through high-strength screw-thread steel muscle 2, nut 4 connect it is integral.2 both ends of high-strength screw-thread steel muscle are equipped with longer external screw thread,
External screw thread size and the internal thread of nut 4 match.At the same time, the nut 4 at both ends can rotate adjusting, independent work respectively
Make, therefore, can further adjustable rooting device active position, performance bracing means maximum utility, better reinforcement bridge
Crackle.
As shown in Figure 6 and Figure 7,2 both ends of high-strength screw-thread steel muscle contain keyway, punched steel plate 3 and 2 contact site of high-strength screw-thread steel muscle
There is the key to match with keyway on the endoporus divided so that together with high-strength screw-thread steel muscle is well fixed on punched steel plate,
While rotating nuts, 2 rotation of itself of limitation high-strength screw-thread steel muscle, the position rotating of realization nut 4.Reinforcing bar 1 is implanted into wearing
Hole steel plate 3 is fixed together by the method for welding.The both ends for being implanted into reinforcing bar 1 are equipped with external screw thread, and nut 4 can be with high-strength screw-thread steel
Muscle 2 carries out screw connection.When rotating one side nut, distance can change between two nuts, be located at rotating nuts same
The punched steel plate 3 of one side will occur equidistant displacement and change, and the implantation reinforcing bar 1 that the same side is located at punched steel plate 3 is sent out simultaneously
Raw equidistant displacement changes, and so as to draw crackle over to one's side, makes crack closure, prevents from extending again.
As shown in figure 8, implantation reinforcing bar makes it be fixed with concrete by bar planting method.It drills on concrete-bridge, then
High-strength anchoring adhesive is injected, implantation reinforcing bar 1 is inserted into, reinforcing bar and concrete-bridge is bonded as one after adhesive curing, reaches and takes root
Purpose.
As shown in Fig. 3, Fig. 4 and Fig. 5, implantation reinforcing bar 1 and 2 angle in 90 ° of high-strength screw-thread steel muscle are straight that is, where fixing device
Line and take-up are presented vertical relation, during nut at rotary fixing device, it should be noted that make high-strength screw-thread steel muscle 2 and concrete
Surface keeping parallelism, convenient and strength-saving to reach the maximal efficiency of work where crackle.
When as shown in Figure 8 and Figure 9, using its bracing means, two reinforcing bars are implanted in the both sides of concrete-bridge crackle,
Make two to take root in as far as possible and connect straight line with straight line where crackle into vertical relation into reinforcing bar, implement to operate to facilitate.Fix reinforcing bar
Afterwards, single unit system, rotating nut 4 are assembled, concrete-bridge crackle can constantly be reduced with the change of implantation reinforcing bar distance, into
And reach closure state, realize the purpose of reinforcing.
Using above-mentioned desirable embodiment according to the invention as enlightenment, by above-mentioned description, relevant staff is complete
Variation, replacement, modification and the deformation of equivalent form can without departing from the scope of the technological thought of the present invention', be carried out entirely.
The technical scope of this invention is not limited to the content on specification, it is necessary to determine its technology according to right
Property scope.
Claims (8)
1. a kind of bracing means of concrete-bridge crackle, it is characterised in that：It is taken root in including 2 into reinforcing bar（1）, 2 pieces of punched steel plates
（3）, a high-strength screw-thread steel muscle（2）With 2 nuts（4）, 2 take root in into reinforcing bar（1）Two of crackle in concrete slab is implanted into respectively
Side, 2 pieces of punched steel plates（3）2 are individually fixed in take root in into reinforcing bar（1）Free end outside, and 2 pieces of punched steel plates（3）On
Through hole is coaxial, high-strength screw-thread steel muscle（2）Through 2 pieces of punched steel plates（3）Through hole, high-strength screw-thread steel muscle（2）Both ends lead to respectively
Cross 2 nuts（4）Locking.
2. the bracing means of concrete-bridge longitudinal crack according to claim 1, it is characterised in that：It is implanted into reinforcing bar（1）
It is close by bar planting method and concrete-bridge and together with being securely attached to.
3. the bracing means of concrete-bridge crackle according to claim 1, it is characterised in that：It is implanted into reinforcing bar（1）With wearing
Hole steel plate（3）It is linked together by the method for welding, is implanted into reinforcing bar（1）With high-strength screw-thread steel muscle（2）Angle in 90 °.
4. the bracing means of concrete-bridge crackle according to claim 1, it is characterised in that：High-strength screw-thread steel muscle（2）
Both ends be respectively equipped with long external screw thread, high-strength screw-thread steel muscle（2）External screw thread and nut（4）Internal thread mutually agree with.
5. the bracing means of concrete-bridge crackle according to claim 1, it is characterised in that：High-strength screw-thread steel muscle（2）
Both ends are respectively equipped with keyway, punched steel plate vertically（3）Through hole be equipped with the key that matches with keyway.
6. the bracing means of concrete-bridge crackle according to claim 1, it is characterised in that：By locking 2 in opposite directions
Nut（4）, adjust high-strength screw-thread steel muscle（2）With 2 punched steel plates（3）Between connection it is elastic, 2 punched steel plates（3）It will folder
Holding force is delivered separately to 2 and takes root in into reinforcing bar（1）, 2 take root in into reinforcing bar（1）Draw crackle over to one's side.
7. the construction method of the bracing means of concrete-bridge crackle according to claim 1, it is characterised in that：Including with
Lower step：
Step 1: it will first be implanted into reinforcing bar（1）With punched steel plate（3）It is fixedly connected；
Step 2: reinforcing bar will be implanted into using bar planting method（1）The both sides of concrete-bridge internal fissure are implanted into, and make 2 pieces of punched steel plates
（3）It is taken root in positioned at 2 into reinforcing bar（1）Outside, and 2 pieces of punched steel plates（3）On through hole it is coaxial；
Step 3: reinforcing bar to be implanted（1）After being completely fixed in concrete, by high-strength screw-thread steel muscle（2）Through 2 pieces of punched steel plates
（3）Through hole, high-strength screw-thread steel muscle（2）Both ends be socketed 2 nuts respectively（4）；
Step 4: by rotating high-strength screw-thread steel muscle（2）The nut at both ends（4）Adjust high-strength screw-thread steel muscle（2）With punched steel plate
（3）Connection it is elastic, punched steel plate（3）Chucking power is passed into implantation reinforcing bar（1）, it is implanted into reinforcing bar（1）It draws crackle over to one's side, makes crackle
It is closed.
8. the construction method of the bracing means of concrete-bridge crackle according to claim 7, it is characterised in that：Step 2
In, first the both sides drilling in the crack on concrete-bridge, high-strength anchoring adhesive is then injected into the hole drilled out, is inserted into implantation
Reinforcing bar（1）, reinforcing bar and solidifying native bridge are bonded as one after high-strength bar planting adhesive curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711417779.7A CN108103962A (en) | 2017-12-25 | 2017-12-25 | A kind of bracing means and its construction method of concrete-bridge crackle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711417779.7A CN108103962A (en) | 2017-12-25 | 2017-12-25 | A kind of bracing means and its construction method of concrete-bridge crackle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108103962A true CN108103962A (en) | 2018-06-01 |
Family
ID=62212788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711417779.7A Pending CN108103962A (en) | 2017-12-25 | 2017-12-25 | A kind of bracing means and its construction method of concrete-bridge crackle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108103962A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616646A (en) * | 2019-10-17 | 2019-12-27 | 辽宁省交通规划设计院有限责任公司 | Method and structure for reinforcing concrete original bridge |
| CN111501578A (en) * | 2020-04-14 | 2020-08-07 | 中铁二十四局集团江苏工程有限公司 | Reinforcing structure for bridge pier cracks and reinforcing method thereof |
| CN114370173A (en) * | 2022-01-07 | 2022-04-19 | 宝武集团鄂城钢铁有限公司 | Reinforcement treatment method for construction defects of high-level water tower |
| CN114717982A (en) * | 2022-05-17 | 2022-07-08 | 山东交通学院 | Concrete box girder web crack reinforcing device and reinforcing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19742210A1 (en) * | 1997-09-24 | 1999-03-25 | Goehler Bernhard Dipl Ing | Concrete-strengthening and repairing system |
| CN1576497A (en) * | 2003-07-07 | 2005-02-09 | M&S工业株式会社 | Reinforced material for concrete building repairing ,repairing and reinforcing technology for concrete building |
| CN1740445A (en) * | 2005-09-23 | 2006-03-01 | 重庆交通学院 | External pre-stress reinforcing structure for common hollow reinforced concrete slab beam |
| CN104878948A (en) * | 2015-04-07 | 2015-09-02 | 淮海工学院 | Reinforced concrete frame beam hogging moment region reinforcing method and reinforcing device |
| CN205975389U (en) * | 2016-08-28 | 2017-02-22 | 江苏省交通技师学院 | Reinforcing structure for road and bridge crack |
-
2017
- 2017-12-25 CN CN201711417779.7A patent/CN108103962A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19742210A1 (en) * | 1997-09-24 | 1999-03-25 | Goehler Bernhard Dipl Ing | Concrete-strengthening and repairing system |
| CN1576497A (en) * | 2003-07-07 | 2005-02-09 | M&S工业株式会社 | Reinforced material for concrete building repairing ,repairing and reinforcing technology for concrete building |
| CN1740445A (en) * | 2005-09-23 | 2006-03-01 | 重庆交通学院 | External pre-stress reinforcing structure for common hollow reinforced concrete slab beam |
| CN104878948A (en) * | 2015-04-07 | 2015-09-02 | 淮海工学院 | Reinforced concrete frame beam hogging moment region reinforcing method and reinforcing device |
| CN205975389U (en) * | 2016-08-28 | 2017-02-22 | 江苏省交通技师学院 | Reinforcing structure for road and bridge crack |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110616646A (en) * | 2019-10-17 | 2019-12-27 | 辽宁省交通规划设计院有限责任公司 | Method and structure for reinforcing concrete original bridge |
| CN111501578A (en) * | 2020-04-14 | 2020-08-07 | 中铁二十四局集团江苏工程有限公司 | Reinforcing structure for bridge pier cracks and reinforcing method thereof |
| CN114370173A (en) * | 2022-01-07 | 2022-04-19 | 宝武集团鄂城钢铁有限公司 | Reinforcement treatment method for construction defects of high-level water tower |
| CN114717982A (en) * | 2022-05-17 | 2022-07-08 | 山东交通学院 | Concrete box girder web crack reinforcing device and reinforcing method |
| CN114717982B (en) * | 2022-05-17 | 2023-05-30 | 山东交通学院 | Concrete box girder web crack reinforcing device and reinforcing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108103962A (en) | A kind of bracing means and its construction method of concrete-bridge crackle | |
| CN203655328U (en) | Shear type expansion anchor bolt | |
| CN102322152B (en) | Prestressed carbon fiber board tensioning system and tension reinforcing method | |
| CN103074959A (en) | Steel plate and high-strength concrete combination connecting beam | |
| CN203510449U (en) | Novel tension device for pipe pile production | |
| CN204662672U (en) | A kind of foldable girder steel junction plate and girder steel | |
| CN205444968U (en) | Bar planting anchor structure | |
| CN203080799U (en) | Coupling beam combining steel plates and high-strength concrete | |
| CN103469967A (en) | Reinforced concrete component assembled building component reinforcement connection sleeve | |
| CN206722449U (en) | A kind of building iron support frame | |
| CN108660947A (en) | A kind of reinforcing device and method of concrete hollow slab girder bridge longitudinal crack | |
| CN206928692U (en) | A kind of structure of very-high performance fiber concrete prefabricated pipe section grouting and reinforcing concrete column | |
| CN203007839U (en) | External prestressed anchor device of CFRP (carbon fiber reinforced polymer) tendon wedge anchor | |
| CN206128624U (en) | Complete wooden structural grouping instrument formula wall form system | |
| CN206770120U (en) | A kind of Polygonal composite pylon | |
| CN107448003A (en) | The structure and method of very-high performance fiber concrete prefabricated pipe section grouting and reinforcing concrete column | |
| CN204113133U (en) | A kind of drilling machine drilling rod | |
| CN208280034U (en) | The bracing means of Combined concrete Hollow Slab Beam Bridge longitudinal crack | |
| CN208712573U (en) | A kind of Simple steel plate apparatus for bending | |
| CN207904784U (en) | A kind of bracing means of concrete-bridge crackle | |
| CN203096731U (en) | Pre-stressed hollow square pile assembly without end plate at one end | |
| CN206928691U (en) | A kind of device of very-high performance fiber concrete prefabricated pipe section hoop constraint reinforced concrete column | |
| CN105240224B (en) | A kind of levelling device for foundation ring of wind generating set and method | |
| CN205474883U (en) | Carbon cloth of pier, angle steel reinforced structure | |
| CN202674063U (en) | Reinforced reel coupling |
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: 20180601 |
|
| RJ01 | Rejection of invention patent application after publication |