CN203807931U - Connecting structure for prefabricated pier and foundation - Google Patents
Connecting structure for prefabricated pier and foundation Download PDFInfo
- Publication number
- CN203807931U CN203807931U CN201320832723.9U CN201320832723U CN203807931U CN 203807931 U CN203807931 U CN 203807931U CN 201320832723 U CN201320832723 U CN 201320832723U CN 203807931 U CN203807931 U CN 203807931U
- Authority
- CN
- China
- Prior art keywords
- steel plate
- anchor cable
- pier
- basic
- precast pier
- 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.)
- Expired - Fee Related
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a connecting structure for a prefabricated pier and a foundation. The connecting structure is characterized in that a top steel plate is pre-buried in the top of the foundation; an anchoring rope fixing device is buried in the foundation; an anchoring rope passage is pre-formed in the prefabricated pier; the two ends of an anchoring rope are respectively fixed in the anchoring rope fixing device on the top of the foundation and the prefabricated pier; a bottom steel plate is arranged on the bottom of the prefabricated pier and is connected with the top steel plate in the way that a high-strength bolt penetrates through a preset bolt hole; after the prefabricated pier is connected with the foundation, the anchoring rope passage is grouted, and prestress is applied to the anchoring rope. The connecting structure is high in construction speed and connection strength, the prefabricated pier can be replaced, and compared with the traditional connecting structure for the prefabricated pier and the foundation, the connecting structure provided by the utility model has the advantage of relatively good technical and economic benefits.
Description
Technical field
The utility model relates to a kind of precast pier and foundation connection structure.Belong to bridge engineering field, be applicable to the bridge engineering that bonding strength requirement is high, precast pier need be changed at any time.
Background technology
Along with the fast development of China's economy, domestic each big and medium-sized cities, particularly coastal cities, the size of population is surged, and vehicle flowrate is also thereupon soaring, and road is supplied with wretched insufficiency.Each city often changes grade separation by existing road being widened to upgrading, level crossing, the measures such as overhead and tunnel multilevel traffic of building increase the ability of being open to traffic, these alteration works are except meeting safe, durable basic demand, also need to reduce the duration as far as possible, to reduce the impact on traffic around, shorten the urban traffic blocking time.
At present, the bridge pier structure of Urban Bridge adopts cast-in-place construction conventionally, execute man-hour requirement road pavement and carry out shutoff, add that the cast-in-place construction duration is long, construction quality is wayward, and support, template consumption in construction are large, and operating expenses is high, and the direct road passage capability of impact construction point, with urban construction and development require incompatible with.If bridge pier adopts precast yard prefabricated, on-site hoisting rear and basic direct-connected form of construction work in place, can parallel construction, greatly shorten the construction period, reduce the impact on traffic around, resident living, and the distortion that element precast can reduce concrete shrinkage, creep and cause, construction quality is guaranteed, has society, environmental benefit preferably.But it is large technological difficulties that precast pier designs with basic being connected.
Tradition precast pier mainly passes through at basic top and the pre-buried junction steel plate in precast pier bottom with basic being connected, again upper and lower junction steel plate welding anchoring is completed, such connected mode is too simple to the processing of structure, shearing resistance, the shock resistance of junction are poor, and steel quantity consumption is larger,, there is potential safety hazard in the durable and stress performance that also has a strong impact on agent structure.
In sum, although existing precast pier and foundation connection structure improve than the existing larger technology of traditional cast-in-place construction, speed of application is fast, and traffic impact is few, but still have that shear resistance is weak, structure bonding strength is low, poor durability, precast pier be difficult to the deficiencies such as replacing.Given this, need at present a kind of precast pier and foundation connection structure that can simultaneously meet the multipurposes such as supporting capacity is strong, bonding strength is high, easy construction is effective, good in economic efficiency of invention badly.
Summary of the invention
The purpose of this utility model is to provide that a kind of to have higher integrated connection intensity, precast pier replaceable, has again easy construction, precast pier and foundation connection structure that technical economic benefit is good simultaneously.
Precast pier and a basic syndeton, at pre-buried top, basic top steel plate, arrange bolt hole and anchor cable device fixing hole on the steel plate of top, pre-buried anchor cable fastening devices in anchor cable device fixing hole;
The inner reserved anchor cable passage of precast pier, bridge pier top arranges anchor cable fastening devices, and bottom arranges end steel plate; Corresponding setting and bolt hole anchor cable access opening on end steel plate;
Precast pier, is separately fixed at precast pier top and basic above anchor cable fastening devices and fixes through two ends after the anchor cable passage of precast pier in conjunction with anchor cable by bolt fixedly top steel plate and end steel plate with basis; Slip casting in anchor cable duct;
Top steel plate is doughnut-shaped steel plate, and bottom even arranges vertical basic steel floor, and basic steel floor is embedded in basis;
Vertical bridge pier steel floor is evenly set on end steel plate; Bridge pier steel floor is partly embedded in precast pier.
The utlity model has following feature and beneficial effect:
(1) adopt precast pier, and adopt high-strength bolt to be combined the connected mode of prestress anchorage cable with basis, but not cast in situs or traditional welding connected mode, for bridge pier is provided by the strong condition that provides in the future.
(2) precast pier inside arranges prestress anchorage cable slip casting, can effectively improve precast pier and basic bonding strength.
(3) basic top steel plate is set to doughnut-shaped steel plate, when guaranteeing bonding strength, can reduce rolled steel dosage, reduces construction costs.
Accompanying drawing explanation
Fig. 1 is the utility model precast pier and foundation connection structure elevation;
In figure: 1-basis, top, 2-basis steel plate, 5-basis steel floor, steel plate at the bottom of 6-bridge pier, 7-bridge pier steel floor, 8-high-strength bolt, 9-anchor cable, 10-anchor cable passage, 11-precast pier, 12-anchor cable fastening devices.
The specific embodiment
Prefabricated parameter and the technological requirement of bridge pier, the cast-in-place construction technique requirement on basis, grout pouring construction technical requirements etc., are not repeated in present embodiment, and emphasis is set forth the embodiment that the utility model relates to structure.
Fig. 1 is the utility model precast pier and foundation connection structure vertical cross-sectional.
With reference to a kind of precast pier shown in Fig. 1 and basic syndeton, at basic 1 embedded foundation top, top steel plate 2, and run through the pre-buried anchor cable fastening devices of basic top steel plate 2 in basis 1; The inner reserved anchor cable path 10 that runs through prestress anchorage cable 9 of precast pier 11, after prestress anchorage cable 9 is connected with the anchor cable fastening devices of basis in 1, through anchor cable path 10 through after precast pier 11 with to be fixed on bridge pier top anchor cable fastening devices 12 fixing, precast pier 11 bottoms arrange steel plate 6 at the bottom of bridge pier, and at the bottom of bridge pier, steel plate 6 is connected by high-strength bolt 8 with basic top steel plate 2; Precast pier 11 to the slip casting of anchor cable path 10, and applies prestressing force to anchor cable 9 after being connected with basis 1.
Basis 1 is reinforced concrete structure, adopts C35 concreting, is of a size of 6500mm * 4500mm * 2500mm, and its top is pre-buried for connecting the basic top steel plate 2 of precast pier; Top, basis steel plate 2 adopts prefabricated the forming of Q345 steel plate, for circulus, outer shroud straight flange overall length 1800 * 2mm, arc length radius is 1400mm, interior ring straight flange overall length 1000 * 2mm, arc length radius is 800mm, surface uniform is reserved 8 bolt hole and 4 anchor cable device fixing holes that diameter is 150mm that diameter is 20mm, pre-buried anchor cable fastening devices (not shown) in hole, 4 vertical basic steel floors 5 of bottom even welding of basic top steel plate 2; Basis steel floor 5 is right-angled triangle, and the right-angle side length of side is 1000mm.
Precast pier 11 is also reinforced concrete structure, adopts that C45 is concrete prefabricated to be formed, and be highly 7000mm, inner even 4 the anchor cable ducts 10 of reserving, and anchor cable duct 10 diameters are 200mm; Steel plate 6 at the bottom of the pre-buried bridge pier in bridge pier bottom, this steel plate is solid construction, size is identical with basic top steel plate 2, surface uniform is reserved 8 bolt hole and 4 anchor cable path 10 holes that diameter is 200mm that diameter is 20mm, the position in hole is consistent with the hole site on the steel plate of basic top, 4 vertical bridge pier steel floors 7 of uniform welding on steel plate at the bottom of bridge pier, the geomery of bridge pier steel floor 7 is identical with basic steel floor 5.
Before precast pier 11 liftings, first anchor cable 9 is run through to precast pier 11 by anchor cable path 10,11 of precast piers are winched to after design attitude, anchor cable 9 lower ends are connected with the anchor cable fastening devices in basis, transfer again precast pier 11, adjusted position postpone by high-strength bolt 8 by basic top steel plate 2 and bridge pier at the bottom of steel plate 6 anchorings, then at precast pier 11 tops, anchor cable 9 is applied to prestressing force, and to pour into strength grade be 42.5 ordinary Portland cement, finally anchor cable 9 is fixed in the anchor cable fastening devices 12 at bridge pier top, completes the integrated connection on precast pier 11 and basis 1.
Claims (4)
1. precast pier and a basic syndeton, is characterized in that, at pre-buried top, basic top steel plate, bolt hole and anchor cable device fixing hole being set on the steel plate of top, pre-buried anchor cable fastening devices in anchor cable device fixing hole;
The anchor cable passage of the inner reserved connectivity of precast pier, bridge pier top arranges anchor cable fastening devices, and bottom arranges end steel plate, and on end steel plate, corresponding top steel plate arranges bolt hole, corresponding anchor cable channel setting anchor cable access opening;
Precast pier is with basis by bolt fixedly top steel plate and end steel plate, and after passing the anchor cable passage of precast pier in conjunction with anchor cable, two ends are separately fixed at the anchor cable fastening devices on precast pier top and basis and fix; Slip casting in anchor cable duct.
2. precast pier according to claim 1 and basic syndeton, is characterized in that top steel plate is doughnut-shaped steel plate, and bottom even is symmetrical arranged vertical basic steel floor, and basic steel floor is embedded in basis.
3. precast pier according to claim 1 and basic syndeton, is characterized in that arranging symmetrically on end steel plate vertical bridge pier steel floor; Bridge pier steel floor is partly embedded in precast pier.
4. precast pier according to claim 1 and basic syndeton, is characterized in that top steel plate equates with end plate size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832723.9U CN203807931U (en) | 2013-12-18 | 2013-12-18 | Connecting structure for prefabricated pier and foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320832723.9U CN203807931U (en) | 2013-12-18 | 2013-12-18 | Connecting structure for prefabricated pier and foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203807931U true CN203807931U (en) | 2014-09-03 |
Family
ID=51446712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320832723.9U Expired - Fee Related CN203807931U (en) | 2013-12-18 | 2013-12-18 | Connecting structure for prefabricated pier and foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203807931U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294753A (en) * | 2014-09-06 | 2015-01-21 | 安徽省交通建设有限责任公司 | Bridge prefabricated hollow pier stud connecting structure and construction method thereof |
| CN104746422A (en) * | 2014-09-19 | 2015-07-01 | 杭州江润科技有限公司 | Bridge prefabricated hollow pier column post-poured connecting structure and construction method |
| CN105350475A (en) * | 2015-11-03 | 2016-02-24 | 北京鸿锐嘉科技发展有限公司 | Crash bearer and manufacturing method thereof |
| CN107090841A (en) * | 2017-04-17 | 2017-08-25 | 广州电力设计院 | Prefabricated cushion cap foundation, transmission tower and its construction method |
| CN113957800A (en) * | 2020-12-29 | 2022-01-21 | 中铁大桥局集团第六工程有限公司 | Synchronous installation method for prestressed steel bundles and prefabricated pier segments |
-
2013
- 2013-12-18 CN CN201320832723.9U patent/CN203807931U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104294753A (en) * | 2014-09-06 | 2015-01-21 | 安徽省交通建设有限责任公司 | Bridge prefabricated hollow pier stud connecting structure and construction method thereof |
| CN104294753B (en) * | 2014-09-06 | 2016-05-04 | 安徽省交通建设有限责任公司 | A kind of hollow pier stud syndeton of bridge prefabrication and construction |
| CN104746422A (en) * | 2014-09-19 | 2015-07-01 | 杭州江润科技有限公司 | Bridge prefabricated hollow pier column post-poured connecting structure and construction method |
| CN105350475A (en) * | 2015-11-03 | 2016-02-24 | 北京鸿锐嘉科技发展有限公司 | Crash bearer and manufacturing method thereof |
| CN105350475B (en) * | 2015-11-03 | 2017-10-17 | 北京鸿锐嘉科技发展有限公司 | Crash bearer and preparation method thereof |
| CN107090841A (en) * | 2017-04-17 | 2017-08-25 | 广州电力设计院 | Prefabricated cushion cap foundation, transmission tower and its construction method |
| CN113957800A (en) * | 2020-12-29 | 2022-01-21 | 中铁大桥局集团第六工程有限公司 | Synchronous installation method for prestressed steel bundles and prefabricated pier segments |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203807931U (en) | Connecting structure for prefabricated pier and foundation | |
| CN104746422B (en) | A kind of hollow pier stud delay-pour joint structure of bridge prefabrication and construction method | |
| CN102296525B (en) | Support system mixed combined beam cable-stayed bridge and construction method thereof | |
| CN206376276U (en) | A kind of prefabricated pipe gallery | |
| CN201560780U (en) | Ultra-small clear distance tunnel rock pillar pre-stress opposite-pull anchor rod structure | |
| CN203755334U (en) | Single-pipe tower prefabricated spiral steel pipe pile foundation | |
| CN103924525B (en) | Urban interchange industrialization short-term precast assembly construction method | |
| CN102767141A (en) | Construction method for huge capping beam utilizing reinforced concrete thin wall as permanent formwork | |
| CN203961012U (en) | A kind of prefabricated housing element of construction that is applied to big-and-middle-sized building | |
| CN205530344U (en) | Utility tunnel is pour to split type no mould | |
| CN206467561U (en) | Prefabricated assembled twin columns vase bridge pier | |
| CN205662838U (en) | Prestressing force joint construction of pier is assembled to prefabricated segment | |
| CN105970803A (en) | Shear-resistant energy dissipation device of assembled pier and construction method | |
| CN204097864U (en) | A kind of bridge prefabrication hollow pier stud delay-pour joint structure | |
| CN212561127U (en) | Straddle type single-track viaduct assembled pier | |
| CN203284750U (en) | Cast-in-place concrete anti-collision guardrail | |
| CN203961014U (en) | A kind of precast concrete building structure | |
| CN103343503A (en) | Bridge type wear-resistant pavement structure system with prefabricated reinforced concrete trough plate and construction method | |
| CN102392417A (en) | Dual-cantilever bearing support structure for large steel pipe and installation method | |
| CN208632948U (en) | The circumferential weld connection structure of prefabricated stand column and adjacent members | |
| CN204370831U (en) | The additional Fabricated balcony structure in old community | |
| CN206512585U (en) | A kind of adjustable box-structure viaduct of the gradient | |
| CN106320184A (en) | Novel fabricated bridge construction method | |
| CN204753363U (en) | Hollow pier stud connection structure of bridge | |
| CN110055905A (en) | A kind of reinforcement means of novel fabricated bricklaying donor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170417 Granted publication date: 20140903 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200417 Granted publication date: 20140903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20161218 |