CN104674648A - Leaf bud type bridge pier - Google Patents
Leaf bud type bridge pier Download PDFInfo
- Publication number
- CN104674648A CN104674648A CN201510068873.0A CN201510068873A CN104674648A CN 104674648 A CN104674648 A CN 104674648A CN 201510068873 A CN201510068873 A CN 201510068873A CN 104674648 A CN104674648 A CN 104674648A
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- CN
- China
- Prior art keywords
- steel tube
- anchoring
- concrete filled
- filled steel
- pier stud
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a pedestrian overcrossing bridge pier, in particular to a leaf bud type bridge pier. The leaf bud type bridge pier comprises a foundation bearing platform, wherein an anchoring embedded part is embedded into the foundation bearing platform and is welded with the bottom ends of steel tube concrete pier studs; anchoring bolts are arranged on the surface of the bottom end of each steel tube concrete pier stud; an anchoring bearing platform is poured at the bottom ends of the steel tube concrete pier studs; a stressed beam is arranged between every two adjacent steel tube concrete pier studs; a rubber supporting seat is arranged on each stressed beam; a reinforced steel plate is arranged at the part, positioned at the lower end of each rubber supporting seat, of the corresponding stressed beam. The bridge pier is integrally stressed, the pier studs can be integrally and uniformly stressed by virtue of the design of all construction details, the vertical load of a main beam is borne together, theoretic stress is matched with design stress, the shape and the structure of an urban pedestrian overcrossing are integrated in the shape design, and the leaf bud type bridge pier is attractive, practical, and worthy of popularization.
Description
(1) technical field
The present invention relates to a kind of pedestrian overcrossing bridge pier, particularly a kind of leaf bud type bridge pier.
(2) background technology
Current pedestrian overcrossing adopts circular reinforced concrete bridge pier mostly, and it is simple that it has construction, and construction technology is ripe, and the advantages such as profile brief introduction is attractive in appearance, are therefore widely adopted in Medium and small span bridge.But existing circular bridge pier column majority adopts solid circles cross section, concrete generally all adopts non-high-strength concrete, concrete material large usage quantity.Field cast-in-place construction period is long, also can produce certain destruction to the environment of surrounding.
Focus in durability, the feature of environmental protection, economy, aesthetic property etc. in modern bridge design theory, original cylindrical pier stud and post-stressed bridge pier can not meet the demands under specific circumstances, must technological innovation be passed through, adapt to the demand of the development of new century traffic engineering.
(3) summary of the invention
The present invention, in order to make up the deficiencies in the prior art, enriches view and the practicality of Selection of Urban Pedestrian Overpass substructure, provides a kind of pedestrian overcrossing bridge pier of novel solid geometry.
The present invention is achieved through the following technical solutions:
A kind of leaf bud type bridge pier, comprises foundation platform, and the inner landfill of described foundation platform has anchoring built-in fitting, and this anchoring built-in fitting top is positioned at foundation platform upper surface; Described anchoring built-in fitting top welds together with 4 concrete filled steel tube pier stud bottoms respectively; Described concrete filled steel tube pier stud bottom end surface is provided with anchoring peg, and anchoring cushion cap has been built in this concrete filled steel tube pier stud bottom; Described concrete filled steel tube pier stud is curved, and 2 relative concrete filled steel tube pier studs are symmetrical arranged, and 4 concrete filled steel tube pier stud tops are interconnected; Described adjacent 2 are provided with bearing beam with in the middle of concrete filled steel tube pier stud; Described bearing beam is provided with neoprene bearing, and this bearing beam place, neoprene bearing lower end is provided with stiffened steel plates.
Described foundation platform and anchoring cushion cap form by concreting.
Described anchoring peg diameter 16mm, spacing 100mm, and anchoring peg is distributed in the 0-550mm altitude range of concrete filled steel tube pier stud bottom.
Described concrete filled steel tube pier stud outside is steel pipe, and the steel duct below bearing beam has built concrete.
Described bearing beam is rectangle steel box-beam structure.
Entirety of the present invention is rendered as " leaf bud " type, the entirety that four curved steel tube performance of concrete column confineds are arranged symmetrically with composition is rendered as the bridge pier structure of leaf bud, concrete filled steel tube pier stud about 1/2 height and position establishes bearing beam, bearing beam is steel work rectangular box section, bearing beam supporting bridge socle structure, four arc bridge piers are connected into entirety simultaneously, guarantee bridge abutment integral is stressed, and offset the outer tension force of the stressed generation of arc pier, bearing beam establishes neoprene bearing, it bridge girder falls within neoprene bearing, and the bearing beam below neoprene bearing position adds intrinsic stiffened steel plates.
The invention has the beneficial effects as follows: bridge abutment integral of the present invention is stressed, the design of possessive construction details is to reach and enables pier stud entirety, uniform stressed, the vertical load of shared girder, reach theoretical stressed with stressed the matching of design, make Selection of Urban Pedestrian Overpass reach moulding in shape-designing and structure combines together simultaneously, both beautiful and practical, be worthy to be popularized.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is three-dimensional shaft view of the present invention.
Fig. 2 is local structural graph of the present invention.
Fig. 3 is the structure chart of anchoring cushion cap of the present invention.
Fig. 4 is the linear graph of concrete filled steel tube pier stud of the present invention.
In figure, 1 foundation platform, 2 anchoring cushion caps, 3 anchoring built-in fittings, 4 concrete filled steel tube pier studs, 5 anchoring pegs, 6 bearing beams, 7 stiffened steel plates, 8 neoprene bearings.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment comprises foundation platform 1, and the inner landfill of described foundation platform 1 has anchoring built-in fitting 3, and this anchoring built-in fitting 3 top is positioned at foundation platform 1 upper surface; Described anchoring built-in fitting 3 top welds together with 4 concrete filled steel tube pier stud 4 bottoms respectively; Described concrete filled steel tube pier stud 4 bottom end surface is provided with anchoring peg 5, and anchoring cushion cap 2 has been built in this concrete filled steel tube pier stud 4 bottom; Described concrete filled steel tube pier stud 4 is curved, and 2 relative concrete filled steel tube pier studs 4 are symmetrical arranged, and 4 concrete filled steel tube pier stud 4 tops are interconnected; Described adjacent 2 are provided with bearing beam 6 with in the middle of concrete filled steel tube pier stud 4; Described bearing beam 6 is provided with neoprene bearing 8, and this bearing beam 6 place, neoprene bearing 8 lower end is provided with stiffened steel plates 7.Described foundation platform 1 and anchoring cushion cap 2 form by concreting.Described anchoring peg 5 diameter 16mm, spacing 100mm, and anchoring peg is distributed in the 0-550mm altitude range of concrete filled steel tube pier stud 4 bottom.Described concrete filled steel tube pier stud 4 outside is steel pipe, and the steel duct of bearing beam less than 6 has built concrete.Described bearing beam 6 is rectangle steel box-beam structure.
Pier Design is become leaf bud type by the present invention, and the size of the height dimension of leaf bud type, pier stud arc radius and pier stud and bearing beam all can adjust according to the needs of Practical Project.Foundation platform 1 and concrete filled steel tube pier stud 4 adopt anchoring built-in fitting 3 to realize transition to be connected, and the design of anchoring built-in fitting 3 needs to carry out in strict accordance with related specifications and force request, and the construction of anchoring built-in fitting 3 should ensure construction quality, guarantees the reliability of component.First should ensure when pier stud welds with anchoring pre-embedded steel slab that the blank size bottom pier stud meets design requirement, scale error and welding quality should require to perform in strict accordance with related specifications.Anchoring peg 5 bottom anchoring cushion cap 2 and concrete filled steel tube pier stud 4 is and strengthens the design of pier stud bottom safety, two structures all can improve bottom concrete filled steel tube pier stud 4 with the globality of anchoring cushion cap 2 and shear strength.Pier stud bearing beam less than 6 is designed to encased structures, can improve flexural strength and the shear strength of concrete filled steel tube pier stud 4, strengthens the resistance to overturning of concrete filled steel tube pier stud 4.Four concrete filled steel tube pier studs 4 connect for entirety becomes main primary structure member by bearing beam 6, and bearing beam 6 itself is also as the important component transmitting girder vertical load, and therefore the design of bearing beam is very crucial.
Claims (5)
1. a leaf bud type bridge pier, comprises foundation platform (1), it is characterized in that: described foundation platform (1) inner landfill has anchoring built-in fitting (3), and this anchoring built-in fitting (3) top is positioned at foundation platform (1) upper surface; Described anchoring built-in fitting (3) top welds together with 4 concrete filled steel tube pier stud (4) bottoms respectively; Described concrete filled steel tube pier stud (4) bottom end surface is provided with anchoring peg (5), and anchoring cushion cap (2) has been built in this concrete filled steel tube pier stud (4) bottom; Described concrete filled steel tube pier stud (4) is curved, and 2 relative concrete filled steel tube pier studs (4) are symmetrical arranged, and 4 concrete filled steel tube pier stud (4) tops are interconnected; Described adjacent 2 are provided with bearing beam (6) with in the middle of concrete filled steel tube pier stud (4); Described bearing beam (6) is provided with neoprene bearing (8), and bearing beam (6) place, this neoprene bearing (8) lower end is provided with stiffened steel plates (7).
2. leaf bud type bridge pier according to claim 1, is characterized in that: described foundation platform (1) and anchoring cushion cap (2) form by concreting.
3. leaf bud type bridge pier according to claim 1, is characterized in that: described anchoring peg (5) diameter 16mm, spacing 100mm, and anchoring peg is distributed in the 0-550mm altitude range of concrete filled steel tube pier stud (4) bottom.
4. leaf bud type bridge pier according to claim 1, is characterized in that: described concrete filled steel tube pier stud (4) outside is steel pipe, and bearing beam (6) steel duct has below built concrete.
5. leaf bud type bridge pier according to claim 1, is characterized in that: described bearing beam (6) is rectangle steel box-beam structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068873.0A CN104674648B (en) | 2015-02-10 | 2015-02-10 | A kind of leaf bud type bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068873.0A CN104674648B (en) | 2015-02-10 | 2015-02-10 | A kind of leaf bud type bridge pier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104674648A true CN104674648A (en) | 2015-06-03 |
| CN104674648B CN104674648B (en) | 2016-08-17 |
Family
ID=53310195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510068873.0A Active CN104674648B (en) | 2015-02-10 | 2015-02-10 | A kind of leaf bud type bridge pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104674648B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227177A1 (en) * | 2021-04-28 | 2022-11-03 | 福州大学 | Connection structure capable of achieving accurate positioning of multi-limb concrete-filled steel tube spatial structure and bearing platform, and construction method therefor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000240001A (en) * | 1999-02-19 | 2000-09-05 | Hitachi Zosen Corp | Over bridge |
| JP2001303515A (en) * | 2000-02-16 | 2001-10-31 | Tokushima Ken | Cable truss bridge |
| CN103643634A (en) * | 2013-12-25 | 2014-03-19 | 招商局重庆交通科研设计院有限公司 | Anchoring structure for arch spring of concrete-filled steel tube arch bridge |
| CN203639807U (en) * | 2013-12-29 | 2014-06-11 | 长安大学 | Y-shaped pier for concrete filled steel tube truss beam |
| CN203639806U (en) * | 2013-09-18 | 2014-06-11 | 中交公路长大桥建设国家工程研究中心有限公司 | Bridge tower or bridge pier with lower steel-concrete composite structure |
| CN204475151U (en) * | 2015-02-10 | 2015-07-15 | 济南城建集团有限公司 | A kind of leaf bud type bridge pier |
-
2015
- 2015-02-10 CN CN201510068873.0A patent/CN104674648B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000240001A (en) * | 1999-02-19 | 2000-09-05 | Hitachi Zosen Corp | Over bridge |
| JP2001303515A (en) * | 2000-02-16 | 2001-10-31 | Tokushima Ken | Cable truss bridge |
| CN203639806U (en) * | 2013-09-18 | 2014-06-11 | 中交公路长大桥建设国家工程研究中心有限公司 | Bridge tower or bridge pier with lower steel-concrete composite structure |
| CN103643634A (en) * | 2013-12-25 | 2014-03-19 | 招商局重庆交通科研设计院有限公司 | Anchoring structure for arch spring of concrete-filled steel tube arch bridge |
| CN203639807U (en) * | 2013-12-29 | 2014-06-11 | 长安大学 | Y-shaped pier for concrete filled steel tube truss beam |
| CN204475151U (en) * | 2015-02-10 | 2015-07-15 | 济南城建集团有限公司 | A kind of leaf bud type bridge pier |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227177A1 (en) * | 2021-04-28 | 2022-11-03 | 福州大学 | Connection structure capable of achieving accurate positioning of multi-limb concrete-filled steel tube spatial structure and bearing platform, and construction method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104674648B (en) | 2016-08-17 |
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