CN204898700U - Bridge foundation structure - Google Patents

Bridge foundation structure Download PDF

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Publication number
CN204898700U
CN204898700U CN201520583397.1U CN201520583397U CN204898700U CN 204898700 U CN204898700 U CN 204898700U CN 201520583397 U CN201520583397 U CN 201520583397U CN 204898700 U CN204898700 U CN 204898700U
Authority
CN
China
Prior art keywords
caisson
multilateral
side plate
curb plate
connecting reinforcement
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
Application number
CN201520583397.1U
Other languages
Chinese (zh)
Inventor
洪英维
赖伟东
嵇其伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
COMMUNICATIONS DESIGN RESEARCH INSTITUTE Co Ltd OF JIANGXI PROV
Original Assignee
COMMUNICATIONS DESIGN RESEARCH INSTITUTE Co Ltd OF JIANGXI PROV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by COMMUNICATIONS DESIGN RESEARCH INSTITUTE Co Ltd OF JIANGXI PROV filed Critical COMMUNICATIONS DESIGN RESEARCH INSTITUTE Co Ltd OF JIANGXI PROV
Priority to CN201520583397.1U priority Critical patent/CN204898700U/en
Application granted granted Critical
Publication of CN204898700U publication Critical patent/CN204898700U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a bridge foundation structure, it includes the caisson, and the caisson is the upper and lower communicating frame box structure compriseed multilateral curb plate, is sidelong the slope in the multilateral curb plate bottom, and the cross -section is the closed angle form, upwards reserving in the multilateral curb plate and being equipped with vertical connecting reinforcement, the inside reservation of multilateral curb plate bottom level is equipped with horizontal connecting reinforcement, and multilateral curb plate is through vertical connecting reinforcement and roof castable, and multilateral curb plate is through horizontal connecting reinforcement and bottom plate castable, and the caisson sets up to one or more, and the caisson sets up when a plurality of, through the connecting piece connection between the caisson. The utility model discloses a caisson passes through prefabrication back fortune to scene, then makes the caisson sink gradually through excavating the caisson within range soil body, and whole work progress need not to excavate the foundation ditch, and because the caisson is prefabricated for the mill, can guarantee engineering construction quality, when adopting a plurality of caisson, can reduce the singly weight of a caisson.

Description

A kind of bridge foundation structure
Technical field
The utility model belongs to ground foundation engineering field, relates to a kind of bridge foundation, is specifically related to a kind of bridge foundation structure.
Background technology
Bridge foundation is the structure of bridge foot, is directly seated on rock or soil base, and its top connects bridge pier or abutment, and effect ensures pier safety and by dynamic changes process to ground.Therefore, in order to safety and the normal use of full-bridge, require that will there be enough intensity, rigidity and resistance to overturning in ground and basis, make it not produce excessive horizontal displacement or differential settlement.Building of bridge foundation, occupies very consequence in whole bridge engineering.
Bridge foundation of the prior art, in construction, need excavation pit to construct, when the above thicker soil of bearing stratum and very soft time, often be difficult to excavate out foundation ditch simply, when especially upper soil horizon water content is very large, cannot foundation ditch be formed at all, great difficulty is brought to construction, even if formation foundation ditch, also cannot ensure concrete pouring quality, bring hidden danger of quality to engineering.
Utility model content
For above-mentioned the deficiencies in the prior art, the utility model provides a kind of for the foundation structure in bridge laying foundation.
The technical solution adopted in the utility model is:
A kind of bridge foundation structure, it comprises caisson, and caisson is the framework box body structure communicated up and down be made up of polygon side plate, and be sidelong slope in polygon side plate bottom, cross section is tip-angled shape; Upwards reserve in polygon side plate and be provided with vertical connecting reinforcement, polygon side plate bottom level is inwardly installed with lateral connection reinforcing bar in advance, polygon side plate is by vertical connecting reinforcement and top board castable, polygon side plate is by lateral connection reinforcing bar and base plate castable, caisson is set to one or more, when caisson is set to multiple, connected by connector between caisson.
Caisson is the framework box body structure communicated up and down be made up of four side plates.
Connector is anchor, and the polygon side plate of caisson is provided with one or more eyelet for installing anchor; The eyelet at the same position place on side plate adjacent between caisson is connected and is connected by anchor.
Caisson of the present utility model is transported to scene after prefabricated, and then by the soil body within the scope of excavation caisson, caisson is sunk gradually, whole work progress is without the need to excavation pit.Compared with prior art, be more applicable to that bearing stratum is deep and weak, the geological conditions of rich groundwater; And due to caisson be prefabrication, can engineering construction quality be ensured.When adopting multiple caisson, the weight of single caisson can be reduced, making caisson be convenient to transport, being applicable to the job location that conditions of transportation is very poor.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the utility model caisson.
Fig. 2 is the utility model caisson plan structure schematic diagram.
Fig. 3 is the top plan view of the utility model embodiment 1 caisson.
Fig. 4 is the top plan view of the utility model embodiment 2 caisson.
Fig. 5 is the utility model anchor structure chart.
Fig. 6 is the utility model using state schematic diagram.
Reference numeral: bridge pier 1, top board 2, vertical connecting reinforcement 3, caisson 4, lateral connection reinforcing bar 5, base plate 6, anchor 7, anchor cable 8, ground tackle 9.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described further, but scope of the present utility model is not limited to following embodiment.
Embodiment 1:
A kind of bridge foundation structure, it comprises caisson 4, and caisson 4 is the framework box body structure communicated up and down be made up of four side plates, and four side plate bottom inside put slope, and cross section is tip-angled shape.
Upwards reserve in four side plates and be provided with vertical connecting reinforcement 3, four side plate bottom levels are inwardly installed with lateral connection reinforcing bar 5 in advance, four side plates are by vertical connecting reinforcement 3 and top board 2 castable, and four side plates are by lateral connection reinforcing bar 5 and base plate 6 castable.
Caisson 4 is set to two, is connected between caisson 4 by connector.
Connector is anchor 7, and the polygon side plate of caisson 4 is provided with one or more eyelet for installing anchor 7; The eyelet at the same position place on side plate adjacent between caisson 4 is connected and is connected by anchor 7.
Anchor 7 is made up of anchor cable 8 and the ground tackle 9 being placed in two ends.
Caisson 4 prefabrication can be transported to job site again, then by digging out the soil body of caisson 4 internal range, caisson 4 is progressively sunk, until arrive bearing stratum bottom caisson 4, then bottom caisson, cast-in-place concrete forms base plate 6, and top board 2 and bridge pier 1 are formed at top again fluid concrete.
Embodiment 2:
On the basis of embodiment 1, caisson 4 is four, and four caissons 4 are consolidated by anchor 7.
This bridge foundation structure Specific construction order is as follows:
(1) precast caisson 4, vertical connecting reinforcement 3 and lateral connection reinforcing bar 5 in advance on caisson 4, and are transported to job site, locate.
(2) excavate the caisson 4 internal range soil body, caisson 4 is progressively sunk, in sinking watching, can adopt the mode of placing weight at caisson 4 top, auxiliary caisson 4 sinks.
(3) caisson 4 progressively sinks down into bearing stratum design elevation.
(4) formwork concreting forms base plate 6.
(5) other caisson 4 adopts preceding method to sink down into design attitude, builds and forms base plate 6, be consolidated by adjacent caisson 4 by anchor 7.
At this point, bridge foundation structure is formed and locates and fixedly completes.
Finally, formed by integrally casting concrete forms bridge pier 1 and top board 2, forms bridge laying foundation.

Claims (3)

1. a bridge foundation structure, it comprises caisson (4), it is characterized in that, caisson (4) is the framework box body structure communicated up and down be made up of polygon side plate, and be sidelong slope in polygon side plate bottom, cross section is tip-angled shape; Upwards reserve in polygon side plate and be provided with vertical connecting reinforcement (3), polygon side plate bottom level is inwardly installed with lateral connection reinforcing bar (5) in advance, polygon side plate is by vertical connecting reinforcement (3) and top board (2) castable, polygon side plate is by lateral connection reinforcing bar (5) and base plate (6) castable, caisson (4) is set to one or more, when caisson (4) is set to multiple, caisson is connected by connector between (4).
2. a kind of bridge foundation structure as claimed in claim 1, is characterized in that, described caisson (4) is the framework box body structure communicated up and down be made up of four side plates.
3. a kind of bridge foundation structure as claimed in claim 1 or 2, is characterized in that, described connector is anchor (7), and the polygon side plate of caisson (4) is provided with one or more eyelet for installing anchor (7); The eyelet at the same position place on side plate adjacent between caisson (4) is connected and is connected by anchor (7).
CN201520583397.1U 2015-08-06 2015-08-06 Bridge foundation structure Expired - Fee Related CN204898700U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520583397.1U CN204898700U (en) 2015-08-06 2015-08-06 Bridge foundation structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520583397.1U CN204898700U (en) 2015-08-06 2015-08-06 Bridge foundation structure

Publications (1)

Publication Number Publication Date
CN204898700U true CN204898700U (en) 2015-12-23

Family

ID=54920889

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520583397.1U Expired - Fee Related CN204898700U (en) 2015-08-06 2015-08-06 Bridge foundation structure

Country Status (1)

Country Link
CN (1) CN204898700U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106087701A (en) * 2016-08-10 2016-11-09 上海市城市建设设计研究总院 Elevated bridge and underground pipe gallery build structure jointly
CN113026460A (en) * 2019-12-25 2021-06-25 河海大学 High moisture content peat soil foundation assembled reinforcing apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106087701A (en) * 2016-08-10 2016-11-09 上海市城市建设设计研究总院 Elevated bridge and underground pipe gallery build structure jointly
CN106087701B (en) * 2016-08-10 2017-09-12 上海市城市建设设计研究总院(集团)有限公司 Elevated bridge and underground pipe gallery build structure jointly
CN113026460A (en) * 2019-12-25 2021-06-25 河海大学 High moisture content peat soil foundation assembled reinforcing apparatus
CN113026460B (en) * 2019-12-25 2022-06-14 河海大学 High moisture content peat soil foundation assembled reinforcing apparatus

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151223

Termination date: 20170806

CF01 Termination of patent right due to non-payment of annual fee