CN208151875U - A kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction - Google Patents
A kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction Download PDFInfo
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- CN208151875U CN208151875U CN201820538963.0U CN201820538963U CN208151875U CN 208151875 U CN208151875 U CN 208151875U CN 201820538963 U CN201820538963 U CN 201820538963U CN 208151875 U CN208151875 U CN 208151875U
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- side wall
- arch bridge
- prestressed
- ruggedized construction
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Abstract
The utility model discloses a kind of steel flanged beam cemented rock arch bridge side wall ruggedized constructions, it is reinforced for the side wall to stone arch bridge, including casing, prestressed anchor, sash beam, anchor plate, fastening nut, centering rack, several anchor pole through-holes are provided on the side wall of stone arch bridge, casing is placed in anchor pole through-hole, several centering racks are placed on prestressed anchor, prestressed anchor is supported in casing by centering rack, the both ends of prestressed anchor are respectively mounted anchor plate, cement slurry is filled between prestressed anchor and casing, all prestressed anchors are fixedly connected by sash beam, the side wall of sash beam and stone arch bridge is connected by plant anchor, and the both ends of all prestressed anchors are locked by fastening nut.The problems such as horizontal anti-pressure ability of arch bridge side wall is greatly improved in the utility model, can solve within the walls side wall bulge caused by filler is heavier, earth lateral pressure is excessive, cracking, to prevent side wall disease from further deepening, it is ensured that bridge monolithic stability.
Description
Technical field
The utility model relates to a kind of bridge strengthening technical field of construction, more particular to a kind of steel flanged beam cemented rock
Arch bridge side wall ruggedized construction.
Background technique
Steel flanged beam cemented rock arch bridge is largely present in China's mountain highway, and mountain highway is the important of highway in China net
Component part connects vast county, township, village, directly serves in agricultural, rural economic development and rural transportation, raw to rural area is developed
Force of labor accelerates the rural area stream of people, logistics, information flow, optimizes allocation of resources and play a crucial role, and is to realize local economy hair
The solid communications and transportation guarantee of exhibition.Since early stage is backward in economy, bridge construction standard is lower, by prolonged use and fortune
Battalion, there is situations such as different degrees of service ability weakens or loses service ability in many bridges, while some bridges are located again
It on transport artery, cannot interrupt, it is therefore desirable to take some special construction technology measures to carry out consolidation process to bridge, reach
Bearing capacity is designed to it, to enable existing bridge normal operation.
Utility model content
The purpose of this utility model is to be to grout that stone arch bridge side wall cracking, bulge isostructuralism disease asks for steel flanged beam
Topic, proposes a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction.
The purpose of this utility model is achieved through the following technical solutions：A kind of steel flanged beam cemented rock arch bridge side wall
Ruggedized construction is reinforced for the side wall to stone arch bridge, including casing, prestressed anchor, sash beam, anchor plate, fastening spiral shell
Female, centering rack is provided with several anchor pole through-holes on the side wall of the stone arch bridge, casing is placed in anchor pole through-hole, in prestressed anchor
It is upper to place several centering racks, prestressed anchor is supported in casing by centering rack, the both ends of prestressed anchor are respectively mounted anchor
Backing plate reserves injected hole and gas vent on anchor plate, and cement slurry, all prestressed anchors are filled between prestressed anchor and casing
Bar is fixedly connected by sash beam, and the side wall of sash beam and stone arch bridge is connected by plant anchor, and all prestressed anchors
Both ends pass through fastening nut lock.
Further, the sash beam is built by armored concrete.
Further, the anchor plate is disposed with prestressed anchor at 90 degree of angles.
Further, described sleeve pipe uses steel sleeve.
Further, length=hole depth+2 of the single prestressed anchor × stretching end length, prestressed anchor use
Finish rolling deformed bar.
Further, the prestressed anchor and anchor plate exposed parts are using hot galvanizing or paint preservative treatment.
Further, the anchor head of prestressed anchor is wrapped with the cement mortar that strength of cement grade is 42.5.
Further, the cement slurry uses M30 cement slurry.
The utility model has the beneficial effects that：Under the premise of uninterrupted traffic transport, pass through the side of structural strengthening and repairing
Formula effectively improves the horizontal anti-pressure ability of arch bridge side wall, solves side wall drum caused by filler is heavier within the walls, earth lateral pressure is excessive
The problems such as packet, cracking, to prevent side wall disease from further deepening, it is ensured that bridge monolithic stability.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples；
Fig. 1 is the utility model Bridge structural facades figure；
Fig. 2 is the utility model Bridge view in transverse section；
Fig. 3 is the plan view of Counter-pulled bolts when the utility model Bridge side and the other side are not parallel；
Fig. 4 is the enlarged drawing of prestressed anchor head structure A in Fig. 3；
Fig. 5 is the enlarged drawing of prestressed anchor head structure B in Fig. 3；
In figure, arch bridge base 1, side wall 2, sash beam 3, prestressed anchor 4, steel sleeve 5, centering rack 6, fastening nut 7, anchor
Backing plate 8, sealing off and covering anchorage cement mortar 9, taper liner block 10, steel mesh 11.
Specific embodiment
Referring to Fig. 1-Fig. 5, the utility model provides a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction, for stone
The side wall of arch bridge is reinforced, including steel sleeve 5, prestressed anchor 4, sash beam 3, anchor plate 8, fastening nut 7, centering rack 6,
It is provided with several anchor pole through-holes on the side wall 2 of the stone arch bridge, places steel sleeve 5 in anchor pole through-hole, is placed on prestressed anchor 4
Prestressed anchor 4 is supported in steel sleeve 5 by several centering racks 6 by centering rack 6, and the both ends of prestressed anchor 4 are respectively mounted anchor
Backing plate 8 reserves injected hole and gas vent on anchor plate 8, and cement slurry is filled between prestressed anchor 4 and steel sleeve 5, all pre-
Stress anchor pole 4 is fixedly connected by sash beam 3, and sash beam 3 is connect with the side wall 2 of stone arch bridge by plant anchor, and is owned
It is locked by fastening nut 7 at the both ends of prestressed anchor 4.The sash beam 3 is built by armored concrete.
The construction method of above-mentioned steel flanged beam cemented rock arch bridge side wall ruggedized construction is described below, it is specific as follows：
Step 1：Operation platform is set up in 1 two sides of arch bridge base, platform expires boarding, places drilling machine.
Step 2：According to 4 distributing position setting-out of prestressed anchor and drill；Anchor pole hole drilling is by arch bridge cemented rock
One side of side wall 2 is carried out to the other side.Using diamond bit rotary drilling, blown hole flushing deslagging with air compressor machine, after pore-forming under
Enter steel sleeve 5 to aperture；The mode wherein to drill connects core casing spreading drilling mode using core drill bit, wall and takes within the walls
Core, avoiding drill bit from repeating disengaging coring can effectively prevent the soil body in hole from collapsing, while also can effectively guarantee construction precision control
Deviation ratio processed.After bolthole pore-forming, steel sleeve 5 follows drilling rod closely and is synchronized by outlet side with proceeding to the other side aperture when drilling rod exits,
The soil body collapses in hole when can prevent drilling rod from exiting.
Step 3：Prestressed anchor 4 is inserted into rigid casing 5, and anchor plate 8 is installed, the same prestressed anchor of anchor plate 8
4 dispose at 90 degree of angles, as shown in Figure 4；As shown in figure 3, for bridge side and the other side it is not parallel when, that is, exist inclined-plane or
Then when cambered surface, a taper liner block 10 need to be built at inclined-plane or cambered surface, as shown in figure 5, so that the same prestressing force of anchor plate 8
Anchor pole 4 is disposed at 90 degree of angles, and steel mesh 11 is laid in taper liner block 10, to increase its intensity.On anchor plate 8 reserve injected hole and
Gas vent, prestressed anchor 4 use finish rolling deformed bar, length=hole depth+2 × stretching end length of single anchor rod, every anchor
Centering rack 6 is installed on bar, is evenly arranged by 1.5m spacing.
Step 4：Both walls wall pours vertical and transverse steel concrete frame lattice beam 3, will be all pre- by sash beam 3
Stress anchor pole 4 connects；Sash beam 3 is cast-in-place using C30 concrete formwork erection, and sash beam 3 and cemented rock side wall 2 pass through plant anchor
Connection, bar planting use A grades of anchoring adhesives, must not be implanted into puzzle joint.
Step 5：After 3 concrete strength of sash beam reach design strength 90% after can stretch-draw prestressing force anchor pole 4, pre-
Anchorage is installed at the both ends of stress anchor pole 4, then carries out tensioning load；First used when tensioning centre-hole jack stretching end with answer in advance
Power anchor pole 4 docks, and after being pulled to 5 tons of design value, is kept for 2 minutes, and locked with fastening nut 7.
Step 6：Slip casting in pipe is carried out after tensioning, prevents the exposed corrosion of prestressed anchor 4；Slip casting uses M30 cement slurry.
Step 7：After slip casting, extra prestressed anchor 4 is cut off；Prestressed anchor 4 and 8 exposed parts of anchor plate are adopted
With hot galvanizing or paint preservative treatment；Anchor head wraps up protection using the sealing off and covering anchorage cement mortar 9 of strength of cement grade 42.5.
In the step 4, the sash beam 3 is connect with cemented rock side wall 2 by plant anchor, specific as follows：
Step 1：According to construction drawing and live practical bolthole hole location determination block lattice beam position, bar planting hole position is released
It sets.
Step 2：It according to the hole location marked, is drilled with electric hammer, until projected depth.
Step 3：Duct is first cleared up with hard mane brush, then blows away bottom hole dust, fragment and moisture with high pressure dry air.
Step 4：By design requirement, blanking is carried out to reinforcing bar；It will be implanted into the polishing derusting of the reinforcing bar part in concrete, and
It is cleaned up with cotton yarn libation at an ancient wedding ceremony acetone.
Step 5：Anchoring adhesive is perfused by bottom hole to hole depth 2/3, is then revolved the reinforcing bar after cleaning in the direction of the clock
Turn to discharge hole air in slow implant holes, allows glue full of entire hole gap.
Step 6：After dowel is inserted into bottom hole, the extra glue in aperture is removed, glue is full, and aperture is smooth.
Step 7：Before glue is solid, avoids disturbance anchor bar and have bright water near hole location.Curing time reaches
It the side 36h can stress use.
Claims (8)
1. a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction, is reinforced, feature exists for the side wall to stone arch bridge
In, including casing, prestressed anchor, sash beam, anchor plate, fastening nut, centering rack, if being provided on the side wall of the stone arch bridge
Dry anchor pole through-hole places casing in anchor pole through-hole, several centering racks is placed on prestressed anchor, by centering rack by prestressing force
For anchor support in casing, the both ends of prestressed anchor are respectively mounted anchor plate, reserve injected hole and gas vent on anchor plate, answer in advance
Cement slurry is filled between power anchor pole and casing, all prestressed anchors are fixedly connected by sash beam, sash beam and stone arch bridge
Side wall by plant anchor connect, and the both ends of all prestressed anchors by fastening nut locking.
2. a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction according to claim 1, which is characterized in that the sash
Beam is built by armored concrete.
3. a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction according to claim 1, which is characterized in that the anchor pad
Plate is disposed with prestressed anchor at 90 degree of angles.
4. a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction according to claim 1, which is characterized in that described sleeve pipe
Using steel sleeve.
5. a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction according to claim 1, which is characterized in that described single
Length=hole depth+2 of prestressed anchor × stretching end length, prestressed anchor use finish rolling deformed bar.
6. a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction according to claim 1, which is characterized in that described pre- to answer
Power anchor pole and anchor plate exposed parts are using hot galvanizing or paint preservative treatment.
7. a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction according to claim 1, which is characterized in that prestressed anchor
The anchor head of bar is wrapped with the cement mortar that strength of cement grade is 42.5.
8. a kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction according to claim 1, which is characterized in that the cement
Slurry uses M30 cement slurry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820538963.0U CN208151875U (en) | 2018-04-16 | 2018-04-16 | A kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820538963.0U CN208151875U (en) | 2018-04-16 | 2018-04-16 | A kind of steel flanged beam cemented rock arch bridge side wall ruggedized construction |
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| CN208151875U true CN208151875U (en) | 2018-11-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086983A (en) * | 2021-11-23 | 2022-02-25 | 四川公路桥梁建设集团有限公司 | Combined reinforcing system for weak medium rock wall of extra-large-section branch tunnel |
| CN114922098A (en) * | 2022-05-07 | 2022-08-19 | 山东交通学院 | Stone arch bridge reinforcing device and method |
-
2018
- 2018-04-16 CN CN201820538963.0U patent/CN208151875U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086983A (en) * | 2021-11-23 | 2022-02-25 | 四川公路桥梁建设集团有限公司 | Combined reinforcing system for weak medium rock wall of extra-large-section branch tunnel |
| CN114086983B (en) * | 2021-11-23 | 2023-08-15 | 四川公路桥梁建设集团有限公司 | Combined reinforcing system for weak middle rock wall of super-large section bifurcation tunnel |
| CN114922098A (en) * | 2022-05-07 | 2022-08-19 | 山东交通学院 | Stone arch bridge reinforcing device and method |
| CN114922098B (en) * | 2022-05-07 | 2023-08-22 | 山东交通学院 | Stone arch bridge reinforcing device and method |
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