CN207525757U

CN207525757U - A kind of deformation and the controllable earthing recurvation formula cantilever design of internal force

Info

Publication number: CN207525757U
Application number: CN201721517463.0U
Authority: CN
Inventors: 黄伟达; 赵剑豪; 方家强
Original assignee: Engineering Consulting Co Ltd Fujian Academy Of Building Research
Current assignee: Engineering Consulting Co Ltd Fujian Academy Of Building Research
Priority date: 2017-11-14
Filing date: 2017-11-14
Publication date: 2018-06-22
Anticipated expiration: 2027-11-14

Abstract

The utility model provides a kind of deformation and the controllable earthing recurvation formula cantilever design of internal force, the cantilever design includes a campshed, one armored concrete Guan Liang, one armored concrete loading plate and an earthing, the armored concrete Guan Liang is set to the top of the campshed, the one side of the armored concrete loading plate and the one side of the earthing are resisted against on the one side of the armored concrete Guan Liang, the bottom of the earthing is placed on the armored concrete loading plate, the bottom of the armored concrete Guan Liang and the bottom of the armored concrete loading plate are located in same level；The dead weight of the earthing is converted into reverse bending moment to the campshed by the armored concrete loading plate by the armored concrete Guan Liang, so as to control the deformation of the campshed.The utility model construction technology is simple, easy to implement, at low cost.

Description

A kind of deformation and the controllable earthing recurvation formula cantilever design of internal force

Technical field

The utility model is related to technical field of buildings more particularly to a kind of deformation and the controllable earthing recurvation formula cantilevers of internal force Structure.

Background technology

In the shallower foundation pit of some cutting depths (side slope) or the preferable deep basal pit of soil property (high slope), using outstanding Often because calculating displacement, either moment of flexure is excessive and limited and then using the side for adding anchor pole or support construction for arm configuration Formula causes the waste of support cost.Therefore, it is desirable to have, a kind of at low cost, construction technology is simple, can reduce and deforms and internal force hangs Arm configuration.

Cantilever design system is simple, this is its advantage, but deformation and moment of flexure are larger, and applicable supporting and retaining system highly has Limit, this is the deficiency of cantilever design maximum, according to《Architecture Foundation Pit Engineering Specifications of Monitoring Technology》Regulation, cantilever ties up to weak soil Area or depth will meet Deformation control requirement when larger be highly difficult.

Related domestic documents are concentrated mainly on the research and engineering practice of the theoretical aspect of calculating of cantilever pile at present, and for Cantilever design deformation and the research of internal force are how reduced, is nearly at blank at present；In terms of patent, the Shen of related content is also had no Please.Therefore, the mode of research earthing recurvation improves the deformation of cantilever design and internal force has huge social benefit and economic effect Benefit, this is a kind of novel composite construction system, is the improve and perfect to cantilever design.

Invention content

The technical problems to be solved in the utility model is to provide a kind of deformation and the controllable earthing recurvation formula cantilever of internal force Structure, construction technology is simple, easy to implement, at low cost.

The utility model is realized in this way：

A kind of deformation and the controllable earthing recurvation formula cantilever design of internal force, the cantilever design include a campshed, a reinforcing bar Concrete Guan Liang, an armored concrete loading plate and an earthing, the armored concrete Guan Liang are set to the top of the campshed, The one side of the armored concrete loading plate and the one side of the earthing are resisted against set on the armored concrete Guan Liang One side on, the bottom of the earthing is placed on the armored concrete loading plate, the bottom of the armored concrete Guan Liang Portion and the bottom of the armored concrete loading plate are located in same level；The armored concrete loading plate is by the earthing Dead weight reverse bending moment to the campshed is converted by the armored concrete Guan Liang, so as to control the change of the campshed Shape.

Further, the length range of the armored concrete loading plate is：1m~3m, altitude range are：1m~3m.

Further, the length range of the earthing is：1m~3m, altitude range are：1m~3m.

The utility model has the advantage of：

The utility model further plays the advantage of cantilever design, and cantilever design is basic by the way of earthing recurvation Principle is that dead weight is applied on armored concrete loading plate by earthing, is formed by the overburden load on loading plate to reinforced concrete The reverse bending moment of native Guan Liang plays the role of inverted constraint by armored concrete Guan Liang to campshed, adds similar at the top of campshed If the constraint of certain rigidity, unidirectionally deformed and by curved situation so as to change campshed so that the pile body displacement of campshed is reduced, pile body Bending moment distribution form is optimized.

Description of the drawings

The utility model is further described in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the structure diagram of the utility model.

Figure label explanation：

1- campsheds, 2- armored concrete Guan Liang, 3- armored concrete loading plate, 4- earthing.

Specific embodiment

The utility model is made with reference to specific embodiment and being further described in detail, but the structure of the utility model It is not limited in following embodiment.

One preferred embodiment is：

Refering to Figure 1, a kind of deformation of the utility model and the controllable earthing recurvation formula cantilever design of internal force, described Cantilever design includes a campshed 1, an armored concrete Guan Liang 2, an armored concrete loading plate 3 and an earthing 4, the reinforcing bar and mixes Solidifying soil Guan Liang 2 is set to the top of the campshed 1, the one side of the armored concrete loading plate 3 and the side of the earthing 4 Face is resisted against on the one side of the armored concrete Guan Liang 2, and the bottom of the earthing 4 is placed in the reinforced concrete On native loading plate 3, the bottom of the armored concrete Guan Liang 2 and the bottom of the armored concrete loading plate 3 are located at same water In plane；The dead weight of the earthing 4 is converted into pair by the armored concrete loading plate 3 by the armored concrete Guan Liang 2 The reverse bending moment of the campshed 1, so as to control the deformation of the campshed 1.

The campshed 1 is the deposited reinforced concrete pile or piling bar of cast in situs, in cantilever position；

The armored concrete Guan Liang 2 is the reinforced beam of cast in situs, is to connect the campshed 1 and the reinforcing bar The key member of concrete loading plate 3, can be by the power suffered by the armored concrete Guan Liang 2 (such as：Reverse bending moment) effectively Pass to the campshed 1；

The armored concrete loading plate 3 is the armored concrete loading plate of cast in situs, is preced with the armored concrete 2 one-piece casting of beam is fixed, and the armored concrete loading plate 3 can be molded with 2 formed by integrally casting of armored concrete Guan Liang, is to add Carrying platform, for carrying the load of the earthing 4, the earthing 4 dead weight, which is converted into, has the armored concrete Guan Liang 2 Reversely by the reverse bending moment of curved effect, reverse bending moment is effectively passed to the campshed 1 using the armored concrete Guan Liang 2； The length range of the armored concrete loading plate 3 is：1m~3m, altitude range are：1m~3m, specific size can be according to institutes The dimensional conditions for stating earthing 4 are adjusted；

The earthing 4 is that itself load is applied on the armored concrete loading plate 3, the length model of the earthing 4 Enclose for：1m~3m, altitude range are：1m~3m, specific size can be adjusted according to actual requirement of engineering.

The operational process of craft of the utility model is as follows：

1. setting-out, positioning；

2. it drives piles；

3. foundation trench excavate, be laid with bed course, reinforcement placing concrete Guan Liang 2, armored concrete loading plate 3 reinforcing bar；

4. formwork erection, casting concrete, maintenance to design age；

5. backfilling the earthwork, and tamp；

6. earth excavation.

The operation principle of the utility model is as follows：

By setting armored concrete loading plate 3,4 gravity load of earthing is applied on armored concrete loading plate 3, steel 4 gravity load of earthing is converted into the reversed by curved effect of armored concrete Guan Liang 2, then by reinforcing bar by reinforced concrete loading plate 3 Concrete Guan Liang 2 passes to the top of campshed 1, is equivalent to and applies a reverse bending moment at the top of campshed 1, to a certain extent Influence of the offset by the level of active force to campshed 1 so as to which the deformation at 1 top of campshed and internal force be greatly decreased, while reduces pile body most Big moment of flexure, and the Bending moment distribution form of campshed 1 is also optimized, armored concrete loading plate 3 by with armored concrete Guan Liang 2 It is whole to pour combination, play recurvation and Unloading Effect so that cantilever system pile body deformation and Internal Force Redistribution are to cantilever pile system Improve and perfect；In addition, armored concrete loading plate 3 also plays certain Unloading Effect to the pile body back side of campshed 1, make work Active earth pressure used in 1 back side of campshed reduces, and then improves the stress performance of campshed 1 in cantilever design, can effectively expand Open up the application range of cantilever design.Construction technology is simple, ripe, is readily applied to production practices；Low engineering cost, while can save Save the concrete and amount of reinforcement of campshed 1.In short, this is the improve and perfect to pure cantilever design, and easy industrialization, to base It is a kind of very useful supporting and retaining system type for hole and slope retaining, economic benefit and social benefit are clearly.

Although the foregoing describe specific embodiment of the present utility model, those familiar with the art should Work as understanding, our described specific embodiments are merely exemplary rather than for the limit to the scope of the utility model Equivalent modification and variation fixed, that those skilled in the art are made in the spirit according to the utility model, all should Cover in the scope of the claimed protection of the utility model.

Claims

1. a kind of deformation and the controllable earthing recurvation formula cantilever design of internal force, it is characterised in that：The cantilever design includes a row Stake, an armored concrete Guan Liang, an armored concrete loading plate and an earthing, the armored concrete Guan Liang are set to the row The top of stake, the one side of the armored concrete loading plate and the one side of the earthing are resisted against and are mixed set on the reinforcing bar On the one side of solidifying soil Guan Liang, the bottom of the earthing is placed on the armored concrete loading plate, the armored concrete The bottom of Guan Liang and the bottom of the armored concrete loading plate are located in same level；The armored concrete loading plate will The dead weight of the earthing is converted into the reverse bending moment to the campshed by the armored concrete Guan Liang, so as to control the row The deformation of stake.

2. a kind of deformation as described in claim 1 and the controllable earthing recurvation formula cantilever design of internal force, it is characterised in that：It is described The length range of armored concrete loading plate is：1m~3m, altitude range are：1m~3m.

3. a kind of deformation as described in claim 1 and the controllable earthing recurvation formula cantilever design of internal force, it is characterised in that：It is described The length range of earthing is：1m~3m, altitude range are：1m~3m.