CN203393755U - Direct layer adding foundation structure for existing building - Google Patents

Direct layer adding foundation structure for existing building Download PDF

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Publication number
CN203393755U
CN203393755U CN201320407690.3U CN201320407690U CN203393755U CN 203393755 U CN203393755 U CN 203393755U CN 201320407690 U CN201320407690 U CN 201320407690U CN 203393755 U CN203393755 U CN 203393755U
Authority
CN
China
Prior art keywords
foundation
existing building
digging hole
newly
lift
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
CN201320407690.3U
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Chinese (zh)
Inventor
董有
鞠树森
谢建明
万兆
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BEIJING AEIDO INTERNATIONAL ENGINEERING TECHNOLOGY Co Ltd
Original Assignee
BEIJING AEIDO INTERNATIONAL ENGINEERING TECHNOLOGY Co Ltd
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.)
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Priority to CN201320407690.3U priority Critical patent/CN203393755U/en
Application granted granted Critical
Publication of CN203393755U publication Critical patent/CN203393755U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a direct layer adding foundation structure for an existing building, and belongs to the field of existing building transformation. Wall lifting beams penetrate through the lower parts of in-situ ring beams of the existing building, are supported on the new foundation continuous beams on the two sides of original strip foundations, and are transmitted to artificially digging hole cast-in-place piles. The artificially digging hole cast-in-place piles are distributed on the two sides of the original strip foundations; the depths of the artificially digging hole cast-in-place piles are determined by calculating according to the situations of upper increased load and foundation soil. The plane positions of the artificially digging hole cast-in-place piles are close to the original foundation as possible under the condition of the minimum operating space, so that the piles and the original foundation can bear the upper load together, meanwhile, inside artificially digging hole piles can serve as posts to add layers underground. Through the treatment of the method, the strength, the rigidity, and the stability of the foundation are greatly improved, and the requirement on building layer adding can be met.

Description

Existing building the direct increase of the floor foundation structure
Technical field
The utility model relates to a kind of existing building the direct increase of the floor (above and below ground increases layer simultaneously) foundation structure, belongs to reconstruction of existing building field.
Background technology
Development along with China's economy, continuous development of the reform, many existing buildings are subject to the restriction of economic condition and Building technology at that time, use function and structure form can not meet epoch needs, if by these demolishing buildings, planning construction again, China's economic condition still can not meet at present, if but adopted the method that increases layer transformation, transformation existing building just could reach economic, applicable object.On existing building, increase layer, in the constant situation of floor space, increase the building density in this region, save the area and also do not affect the coordination of surrounding enviroment.
Increase that first layer engineering run into and what will solve is foundation problem, owing to increasing layer engineering, directly increased building upper load, building is to be transferred the load in ground and gone by basis, and therefore, the design of foundation has very important status in increasing layer engineering.For guaranteeing safety and normal use of building, basis should ensure enough intensity, rigidity and durability.
Utility model content
The purpose of this utility model is to overcome the above-mentioned defect of prior art, a kind of existing building the direct increase of the floor foundation structure is provided, while increasing layer in order to solve existing building to the basic problems such as strength and stiffness requirement, structure of the present utility model and method will be lifted wall beam through under the ground collar tie beam of inhering architecture, be supported on the newly-increased concrete foundation continuous beam in former basic both sides, then pass to manually digging hole filling pile.Manually digging hole filling pile is arranged in former basic both sides, and its degree of depth increases load and foundation soil situation according to top, passes through calculative determination.The plan-position of manually digging hole filling pile, is meeting under minimum operation steric requirements, as far as possible near former basis, guarantees that stake and former basis can shared upper loads, can carry out underground increasings layer using inner side hand excavated pile as post simultaneously, to meet, increases a layer needs.
The technical solution of the utility model is as follows:
A kind of existing building the direct increase of the floor foundation structure, comprise the former strip foundation of existing building, in former strip foundation, be provided with original place collar tie beam, on the collar tie beam of original place, be provided with original wall body, it is characterized in that: in former strip foundation both sides, be provided with manually digging hole filling pile, manually digging hole filling pile center of top is provided with newly-increased basic continuous beam; Described newly-increased basic continuous beam is arranged at respectively former strip foundation inner side and outside, forms " returning " font of two sealings, and inside and outside each is as a whole; In the former strip foundation of collar tie beam bottom, described original place, offer hole, in hole, be equipped with and lift wall beam, lift wall beam two end supports on newly-increased basic continuous beam.
Further, described existing building the direct increase of the floor foundation structure, the pilespacing of described manually digging hole filling pile is not less than 3m.
Described former strip foundation corner is furnished with manually digging hole filling pile.
Described newly-increased basic continuous beam is reinforced concrete cast-in-situ structure.
The diameter of described manually digging hole filling pile is 800mm.
Described spacing of lifting wall beam is 1500mm.
The described wall beam of lifting is provided with built-in connection.
Describedly lift the constructional column lower position that wall beam correspondence is arranged in existing building, to meet newly increased load, by constructional column, be delivered on newly-increased basic continuous beam, then pass to manually digging hole filling pile.
The job practices of above-mentioned existing building the direct increase of the floor foundation structure, construction sequence is as follows:
Step 1: according to design drawing, at former strip foundation both sides earth excavation, to Design of Artificial Drilled Piles absolute altitude, carry out reinforcing cage and hang, concreting forms manually digging hole filling pile, builds simultaneously, need reserved steel bar, to meet effective connection of the newly-increased basic continuous beam in top, during soil excavation, to carry out soil body protection, in case the earthwork is caved in and existing building tilts;
Step 2: after construction of manual-excavation cast-in-place pile finishes, increase reinforcing bar binding, template construct and the concreting of basic continuous beam newly, when reinforcing bar binding, need to lift wall beam place built-in connection in support, to meet, lift wall beam and be connected with newly-increased the effective of basic continuous beam;
Step 3: newly-increased basic Construction of continuous beam finishes evenly to punch in the former strip foundation under the collar tie beam of Hou, original place, arranges and lifts wall beam; Lift the plan-position of wall beam and should avoid existing building one deck door and window hole, in the time of can not avoiding, the door and window hole that reply is lifted on wall beam is taked strengthening measure; Build while lifting wall beam, abundant vibration compacting, guarantees that Qi Yu original place collar tie beam combines closely, or lifting wall beam, to make slightly expanded concrete Liang,Yu original place collar tie beam compacted; Lifting wall beam root adopts steel plate drift ping tight;
Step 4: after lifting wall beam and having constructed, increase layer transformation, when top increases layer transformation, load is passed to the constructional column of existing building, then going down successively, pass to respectively and lift wall beam, newly-increased basic continuous beam, manually digging hole filling pile; During underground increasing layer, former strip foundation is carried out to grouting and reinforcing.
Further, the built-in connection in described step 2 is the bar with hooked end that two diameters are not less than 20mm.
Beneficial effect:
Adopt the utility model to carry out the direct increase of the floor based process, can meet and increase layer to basic requirement.This method all can be constructed in indoor and outdoor, adopts manually digging hole filling pile, easy construction, bearing capacity of single pile is high, give full play to the native end load of stake end, single pile can bear the load of several multifarious oxen of several thousand Niu Naizhi, and has solved the narrow place machinery difficult problem of marching into the arena.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model increases layer transformation and based process;
Fig. 2 based process plan view;
Fig. 3 based process elevation;
Fig. 4 based process sectional drawing;
Fig. 5 built-in connection schematic diagram;
In figure, 1: lift wall beam; 2: newly-increased basic continuous beam; 3: former strip foundation; 4: manually digging hole filling pile; 5: original place collar tie beam; 6: underground increasing layer segment; 7: increase layer segment on the ground; 8: original structure.
The specific embodiment
Below in conjunction with accompanying drawing 1-5, the specific embodiment of the present utility model is further described:
A kind of existing building the direct increase of the floor foundation structure, comprise the former strip foundation 3 of existing building, in former strip foundation 3, be provided with original place collar tie beam 5, on original place collar tie beam 5, be provided with original wall body, in former strip foundation both sides, be provided with manually digging hole filling pile 4, manually digging hole filling pile 4 center of top are provided with newly-increased basic continuous beam 2; Newly-increased basic continuous beam 2 is arranged at respectively former strip foundation 3 inner sides and outside, forms " returning " font of two sealings, and inside and outside each is as a whole; In the former strip foundation 3 of original place collar tie beam 5 bottoms, offer hole, in hole, be equipped with and lift wall beam 1, lift wall beam 1 two end supports on newly-increased basic continuous beam 2.Wherein, the pilespacing of manually digging hole filling pile 4 is not less than 3m, the diameter of manually digging hole filling pile 4 is 800mm, the spacing of lifting wall beam 1 is 1500mm, and former strip foundation corner is furnished with manually digging hole filling pile 4, newly-increased basic continuous beam 2 is reinforced concrete cast-in-situ structure, lifts wall beam 1 and is provided with built-in connection.
Lift the constructional column lower position that wall beam 1 correspondence is arranged in existing building, to meet newly increased load, by constructional column, be delivered on newly-increased basic continuous beam 2, then pass to manually digging hole filling pile 4.
The concrete construction method of above-mentioned existing building the direct increase of the floor foundation structure, construction sequence is as follows:
Step 1: according to design drawing, at former strip foundation 3 both sides earth excavations, to manually digging hole filling pile 4 design elevations, carry out reinforcing cage and hang, concreting forms manually digging hole filling pile 4, builds simultaneously, need reserved steel bar, to meet effective connection of the newly-increased basic continuous beam 2 in top, during soil excavation, to carry out soil body protection, in case the earthwork is caved in and existing building tilts;
Step 2: after manually digging hole filling pile 4 constructions finish, increase reinforcing bar binding, template construct and the concreting of basic continuous beam 2 newly, when reinforcing bar binding, need to lift wall beam 1 place's built-in connection in support, to meet, lift wall beam 1 and be connected with newly-increased the effective of basic continuous beam 2, built-in connection is the bar with hooked end that two diameters are not less than 20mm;
Step 3: newly-increased basic continuous beam 2 constructions finish evenly to punch in the former strip foundation 3 under Hou, original place collar tie beam 5, arrange and lift wall beam 1; Lift the plan-position of wall beam 1 and should avoid existing building one deck door and window hole, in the time of can not avoiding, the door and window hole that reply is lifted on wall beam 1 is taked strengthening measure; Build while lifting wall beam 1, abundant vibration compacting, guarantees that Qi Yu original place collar tie beam 5 combines closely, or lifting wall beam 1, to make slightly expanded concrete Liang,Yu original place collar tie beam 5 compacted; Lifting wall beam 1 root adopts steel plate drift ping tight;
Step 4: after lifting wall beam 1 and having constructed, increase layer transformation, when top increases layer transformation, load is passed to the constructional column of existing building, then going down successively, pass to respectively and lift wall beam 1, newly-increased basic continuous beam 2, manually digging hole filling pile 4; During underground increasing layer, former strip foundation 3 is carried out to grouting and reinforcing.
Be more than an exemplary embodiments of the present utility model, enforcement of the present utility model is not limited to this.

Claims (8)

1. an existing building the direct increase of the floor foundation structure, comprise the former strip foundation of existing building (3), in former strip foundation (3), be provided with original place collar tie beam (5), original place collar tie beam is provided with original wall body on (5), it is characterized in that: in former strip foundation both sides, be provided with manually digging hole filling pile (4), manually digging hole filling pile (4) center of top is provided with newly-increased basic continuous beam (2); Described newly-increased basic continuous beam (2) is arranged at respectively former strip foundation (3) inner side and outside, forms " returning " font of two sealings, and inside and outside each is as a whole; In the former strip foundation (3) of described original place collar tie beam (5) bottom, offer hole, in hole, be equipped with and lift wall beam (1), lift wall beam (1) two end supports on newly-increased basic continuous beam (2).
2. existing building the direct increase of the floor foundation structure according to claim 1, is characterized in that: the pilespacing of described manually digging hole filling pile (4) is not less than 3m.
3. existing building the direct increase of the floor foundation structure according to claim 1, is characterized in that: described former strip foundation corner is furnished with manually digging hole filling pile (4).
4. existing building the direct increase of the floor foundation structure according to claim 1, is characterized in that: described newly-increased basic continuous beam (2) is reinforced concrete cast-in-situ structure.
5. existing building the direct increase of the floor foundation structure according to claim 1, is characterized in that: the diameter of described manually digging hole filling pile (4) is 800mm.
6. existing building the direct increase of the floor foundation structure according to claim 1, is characterized in that: described in lift wall beam (1) spacing be 1500mm.
7. existing building the direct increase of the floor foundation structure according to claim 1, is characterized in that: described in lift wall beam (1) and be provided with built-in connection.
8. existing building the direct increase of the floor foundation structure according to claim 1, is characterized in that: described in lift the constructional column lower position that wall beam (1) correspondence is arranged in existing building.
CN201320407690.3U 2013-07-09 2013-07-09 Direct layer adding foundation structure for existing building Expired - Fee Related CN203393755U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320407690.3U CN203393755U (en) 2013-07-09 2013-07-09 Direct layer adding foundation structure for existing building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320407690.3U CN203393755U (en) 2013-07-09 2013-07-09 Direct layer adding foundation structure for existing building

Publications (1)

Publication Number Publication Date
CN203393755U true CN203393755U (en) 2014-01-15

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397667A (en) * 2013-07-09 2013-11-20 北京筑福国际工程技术有限责任公司 Existing building direct storey-adding foundation structure and construction method thereof
CN104499727A (en) * 2014-12-02 2015-04-08 兰州理工大学 Non-anchor construction method for light steel structure floor adding reconstruction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397667A (en) * 2013-07-09 2013-11-20 北京筑福国际工程技术有限责任公司 Existing building direct storey-adding foundation structure and construction method thereof
CN104499727A (en) * 2014-12-02 2015-04-08 兰州理工大学 Non-anchor construction method for light steel structure floor adding reconstruction

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Addressee: Beijing Aeido International Engineering Technology Co., Ltd.

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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: 20140115

Termination date: 20170709