CN109653534A - Set building club-footed pile strip footing straining beam and set building - Google Patents
Set building club-footed pile strip footing straining beam and set building Download PDFInfo
- Publication number
- CN109653534A CN109653534A CN201910120036.6A CN201910120036A CN109653534A CN 109653534 A CN109653534 A CN 109653534A CN 201910120036 A CN201910120036 A CN 201910120036A CN 109653534 A CN109653534 A CN 109653534A
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- China
- Prior art keywords
- straining beam
- bottom plate
- building
- club
- existing building
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/06—Separating, lifting, removing of buildings; Making a new sub-structure
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Foundations (AREA)
Abstract
The present invention provides a kind of set building club-footed pile strip footing straining beam and set buildings, belong to set and builds building foundation technical field, including straining beam bottom plate and basic straining beam, the ratcheting connection in straining beam bottom plate side and existing building basis, the opposite other side extends outwardly beyond the outer edge of the cushion cap below frame column, and straining beam bottom plate is equipped with two-way steel mesh；Basic straining beam is set to the upper surface of described straining beam bottom plate, it is connected between two adjacent cushion caps, by stirrup together with straining beam bottom plate hoop, the width of basic straining beam is less than the width of cushion cap, and the center line of basic straining beam is overlapped with the line of centres of two adjacent cushion caps.Set provided by the invention builds club-footed pile strip footing straining beam, pass through the ratcheting connection of strip footing straining beam and existing building basis, it is combination stressed, transmit set building column bottom internal force effectively, set builds building foundation and only undertakes structure vertical force, the spacing that set is built between building foundation and existing building basis can be reduced, economize the land resource utilization.
Description
Technical field
It is to be related to a kind of set building club-footed pile item more specifically the invention belongs to cover to build building foundation technical field
Shape basis straining beam and set building.
Background technique
With the rapid development of our country's economy, the paces of urbanization are quickly grown, and skyscraper rises sheer from level ground like the mushrooms after rain
And rise, cause the soil of downtown urban land fewer and fewer.And in Old City Reconstruction, generally take changing for " tearing open build in large scale greatly "
Method is made, Old building bring building waste is removed and nowhere discharges, Land Environment is caused seriously to pollute.
And build the normal life for influencing people in large scale in order to avoid tearing open greatly, one, which is built, in the outer cover of an existing building creates
Building is a kind of good processing mode.Set building is generally skyscraper, and foundation bearing force request is high, and basis is general to be used
The form of pile foundation, buried depth are greater than existent building, and newly-built set build the spacing between building foundation and existing building basis compared with
It is small, it cannot guarantee that set builds the stress of building pile foundation using usual manner.
Summary of the invention
The purpose of the present invention is to provide a kind of sets to build club-footed pile strip footing straining beam, to solve to cover building laterally
The technical issues of basic straining beam can not be arranged in large span direction.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of set building club-footed pile strip footing is provided
Straining beam is set to the outside on existing building basis, comprising:
Straining beam bottom plate, the ratcheting connection in side and existing building basis, the opposite other side extends outwardly beyond frame
The outer edge of cushion cap below column, straining beam bottom plate are equipped with two-way steel mesh；
Basic straining beam is set to the upper surface of described straining beam bottom plate, is connected between two adjacent cushion caps, by hoop
Muscle is together with the straining beam bottom plate hoop, and the width of the basis straining beam is less than the width of the cushion cap, the basis straining beam
Center line is overlapped with the line of centres of two adjacent cushion caps.
Further, the structure of the ratcheting connection are as follows: the straining beam bottom plate connect with the existing building basis one
The section configuration of side, for the tooth-shape structure that matches with the existing building foundation outline, the two-way steel mesh is laid with to leaning on
The nearly existing building is basic, and after formed by integrally casting, straining beam bottom plate is closely connect with the existing building basis.
Further, the elevation of bottom of the straining beam bottom plate is equal to or higher than the grey earth foundation on the existing building basis
Absolute altitude, elevation of top are high not higher than the top mark that the brick of the existing building ash earth foundation puts foot.
Further, the straining beam bottom plate lower section be laid with concrete cushion, the concrete cushion side be laid with to
The grey earth foundation on the existing building basis connects, and the other side is laid with the outer edge beyond the straining beam bottom plate outward.
Further, the elevation of bottom of the concrete cushion is higher than the bottom mark of the grey earth foundation of the existing building
Height, and lower than the elevation of top of the grey earth foundation.
Further, the lower section of the frame column is coaxial with the frame column and is deep into the club-footed pile in ground, institute
The upper end that cushion cap is set to the club-footed pile is stated, the lower end of the club-footed pile is equipped with the base expanding and base expanding portion for increasing bearing capacity.
Further, grey earth foundation of the maximum outer edge in the base expanding and base expanding portion on the existing building basis is formed by just
In drop shadow spread.
Further, the maximum outer edge in the base expanding and base expanding portion exceeds the outer edge of the straining beam bottom plate.
Another object of the present invention is to provide a kind of set building, based on the strip footing straining beam.
The beneficial effect of set building club-footed pile strip footing straining beam provided by the invention is: compared with prior art,
Set of the present invention builds club-footed pile strip footing straining beam, passes through the ratcheting connection of strip footing straining beam and existing building basis, group
Stress is closed, the horizontal shear and column bottom moment of flexure at the top of club-footed pile are effectively undertaken, transmits set building column bottom internal force effectively, set is built
Building foundation only undertakes structure vertical force, can reduce the spacing that set is built between building foundation and existing building basis, reduce soil
Ground occupies, and economize the land resource utilization.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the planar structure schematic diagram that set provided in an embodiment of the present invention builds club-footed pile strip footing straining beam；
Fig. 2 is the schematic cross-sectional view of the line A-A along Fig. 1；
Fig. 3 is the schematic view of facade structure that set provided in an embodiment of the present invention builds club-footed pile and strip footing straining beam.
Wherein, marked in the figure:
1- frame column；The basis 2- straining beam；3- straining beam bottom plate；4- club-footed pile；41- base expanding and base expanding portion；42- cushion cap；5- existing building
Basis；51- ash earth foundation；52- brick puts foot；6- stirrup；7- two-way steel mesh；8- concrete cushion.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie below
Accompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Also referring to Fig. 1 and Fig. 2, now set provided by the invention building 4 strip footing straining beam of club-footed pile is said
It is bright.The set builds 4 strip footing straining beam of club-footed pile, is set to the outside on existing building basis 5, including 3 He of straining beam bottom plate
Basic straining beam 2,3 side of straining beam bottom plate and the basic 5 ratcheting connections of the existing building, the opposite other side extends outwardly beyond frame
The outer edge of the cushion cap 42 of 1 lower section of trestle, straining beam bottom plate 3 are equipped with two-way steel mesh 7；Basic straining beam 2 is set to straining beam bottom plate 3
The upper surface of, it is connected between the cushion cap 42 of adjacent two, is bound round together by stirrup 6 and the straining beam bottom plate 3, the base
The width of plinth straining beam 2 is less than the width of the cushion cap 42, the center line and two adjacent cushion caps 42 of the basis straining beam 2
The line of centres be overlapped.
Set building 4 strip footing straining beam of club-footed pile provided by the invention is drawn by strip footing compared with prior art
The ratcheting connection of beam and existing building basis 5, it is combination stressed, the horizontal shear and column bottom moment of flexure at 4 top of club-footed pile are effectively undertaken,
Transmit set building column bottom internal force effectively, set builds building foundation and only undertakes structure vertical force, can reduce set and build building foundation
With the spacing between existing building basis 5, land seizure is reduced, economize the land resource utilization.
Wherein, the spacing for the steel mesh being laid in the straining beam bottom plate 3 of basic 2 two sides of straining beam is greater than in basic straining beam 2
Reinforcing bar spacing, economize on resources.
Referring to Fig. 2, a kind of specific embodiment party as set provided by the invention building 4 strip footing straining beam of club-footed pile
Formula, the structure of the ratcheting connection are as follows: the section configuration for the side that the straining beam bottom plate 3 is connect with the existing building basis 5,
For the tooth-shape structure matched with basic 5 shapes of the existing building, the two-way steel mesh 7 is laid with to close to described and existing builds
Basis 5 is built, after formed by integrally casting, straining beam bottom plate 3 is closely connect with the existing building basic 5.Wherein, existing basis includes dirt
Basis 51 and brick put foot 52, wherein the width of grey earth foundation 51 is greater than the width that brick puts foot 52, therefore, grey earth foundation 51 and brick
One step of formation between foot 52 is put, a tooth form can be also formed, be put for shape with the brick of step on grey earth foundation 51
Foot 52, each step that brick puts foot 52 can form a tooth form, after strip footing straining beam pours, the side of straining beam bottom plate 3
Face can form the tooth-shape structure tightly engaged with existing building basis 5, and so after combination, strip footing straining beam can undertake water
Straight snips power and column bottom moment of flexure, namely share set and build the part internal force of building foundation, and improve set building total bearing capacity；Separately
Outside, by the way of ratcheting connection, existing building can also be shortened and set builds the distance between building foundation, soil is reduced and account for
With effectively improving the utilization rate of space.
Referring to Fig. 2, a kind of specific embodiment party as set provided by the invention building 4 strip footing straining beam of club-footed pile
Formula, the elevation of bottom of the straining beam bottom plate 3 are equal to or higher than the absolute altitude of the grey earth foundation 51 on the existing building basis 5, top
Portion's absolute altitude is high not higher than the top mark that the brick of the existing building ash earth foundation puts foot 52.
Referring to Fig. 2, a kind of specific embodiment party as set provided by the invention building 4 strip footing straining beam of club-footed pile
Formula, the lower section of the straining beam bottom plate 3 are laid with concrete cushion 8,8 side of concrete cushion be laid with to the existing building
The grey earth foundation 51 on basis 5 connects, and the other side is laid with the outer edge beyond the straining beam bottom plate 3 outward.
Referring to Fig. 2, a kind of specific embodiment party as set provided by the invention building 4 strip footing straining beam of club-footed pile
Formula, the elevation of bottom of the concrete cushion 8 are higher than the elevation of bottom of the grey earth foundation 51 of the existing building, and lower than described
The elevation of top of grey earth foundation 51.Referring to fig. 2, wherein the height of straining beam bottom plate 3 is H1, and the height of straining beam entirety is H2, coagulation
The height of soil padding 8 is H3, and basic straining beam 2 to the outer peripheral distance of straining beam bottom plate 3 is A2, and basic straining beam 2 arrives existing building base
The shortest distance of the grey earth foundation 51 of plinth 5 is A1, wherein A1 and A2 can be equal, and concrete cushion 8 is beyond outside straining beam bottom plate 3
The width at edge is the distance of A3, above-mentioned each parameter and frame column 1 to basic 5 centers of existing building, according to engineering design requirements
Depending on.
Refering to fig. 1 and Fig. 3, a kind of specific reality as set provided by the invention building 4 strip footing straining beam of club-footed pile
Mode is applied, the lower section of the frame column 1 is club-footed pile 4 that is coaxial with the frame column 1 and being deep into ground, the cushion cap 42
Set on the upper end of the club-footed pile 4, the lower end of the club-footed pile 4 is equipped with the base expanding and base expanding portion 41 for increasing bearing capacity.Pass through base expanding and base expanding
Stake 4 increases the bearing capacity of frame column 1, meanwhile, using club-footed pile 4, the distance between existing building can also be shortened.
Fig. 1 and Fig. 3 is please referred to, one kind as set provided by the invention building 4 strip footing straining beam of club-footed pile is specific
Embodiment, grey earth foundation 51 of the maximum outer edge in the base expanding and base expanding portion 41 on the existing building basis 5 are formed by positive throwing
Within the scope of shadow.Wherein, partly overlapping for base expanding and base expanding portion 41 and existing building basis 5 is utilized, reduces the occupancy to surrounding ground.
Referring to Fig. 1, a kind of specific embodiment party as set provided by the invention building 4 strip footing straining beam of club-footed pile
Formula, the maximum outer edge in the base expanding and base expanding portion 41 exceed the outer edge of the straining beam bottom plate 3.By base expanding and base expanding portion 41, bored concrete pile is improved
Foundation bearing capacity, further increase the stability of monolithic architecture.
Another object of the present invention is to provide a kind of set building, based on the strip footing straining beam.
Set building provided by the invention, due to passing through the ratcheting connection of strip footing straining beam and existing building basis 5, group
Stress is closed, the horizontal shear and column bottom moment of flexure at 4 top of club-footed pile are effectively undertaken, set building column bottom internal force is transmitted effectively, covers
It builds building foundation and only undertakes structure vertical force, the spacing that set is built between building foundation and existing building basis 5 can be reduced, reduce
Land seizure, economize the land resource utilization.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. set building club-footed pile strip footing straining beam, is set to the outside on existing building basis characterized by comprising
Straining beam bottom plate, the ratcheting connection in side and existing building basis, the opposite other side extends outwardly beyond under frame column
The outer edge of the cushion cap of side, the straining beam bottom plate are equipped with two-way steel mesh；And
Basic straining beam is set to the upper surface of described straining beam bottom plate, is connected between two adjacent cushion caps, by stirrup with
Together, the width of the basis straining beam is less than the width of the cushion cap, the center of the basis straining beam to the straining beam bottom plate hoop
Line is overlapped with the line of centres of two adjacent cushion caps.
2. set building club-footed pile strip footing straining beam as described in claim 1, which is characterized in that the knot of the ratcheting connection
Structure are as follows: the section configuration for the side that the straining beam bottom plate is connect with the existing building basis is basic with the existing building
The tooth-shape structure that shape matches, the two-way steel mesh are laid with to behind existing building basis, formed by integrally casting, straining beam
Bottom plate is closely connect with the existing building basis.
3. set building club-footed pile strip footing straining beam as described in claim 1, which is characterized in that the bottom of the straining beam bottom plate
Portion's absolute altitude is equal to or higher than the absolute altitude of the grey earth foundation on the existing building basis, and elevation of top is not higher than the existing building
The top mark that the brick of grey earth foundation puts foot is high.
4. set building club-footed pile strip footing straining beam as described in claim 1, which is characterized in that under the straining beam bottom plate
Side is laid with concrete cushion, and the concrete cushion side, which is laid with to the grey earth foundation on the existing building basis, to connect, separately
Side is laid with the outer edge beyond the straining beam bottom plate outward.
5. set building club-footed pile strip footing straining beam as claimed in claim 4, which is characterized in that the concrete cushion
Elevation of bottom is higher than the elevation of bottom of the grey earth foundation of the existing building, and lower than the elevation of top of the grey earth foundation.
6. set building club-footed pile strip footing straining beam as described in claim 1, which is characterized in that the lower section of the frame column
Be it is coaxial with the frame column and be deep into the club-footed pile in ground, the cushion cap is set to the upper end of the club-footed pile, the expansion
The lower end of bottom stake is equipped with the base expanding and base expanding portion for increasing bearing capacity.
7. set building club-footed pile strip footing straining beam as claimed in claim 6, which is characterized in that the maximum in the base expanding and base expanding portion
Grey earth foundation of the outer edge on the existing building basis is formed by within the scope of orthographic projection.
8. set building club-footed pile strip footing straining beam as claimed in claim 6, which is characterized in that the maximum in the base expanding and base expanding portion
Outer edge exceeds the outer edge of the straining beam bottom plate.
9. set building, which is characterized in that based on such as the described in any item strip footing straining beams of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910120036.6A CN109653534A (en) | 2019-02-18 | 2019-02-18 | Set building club-footed pile strip footing straining beam and set building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910120036.6A CN109653534A (en) | 2019-02-18 | 2019-02-18 | Set building club-footed pile strip footing straining beam and set building |
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| Publication Number | Publication Date |
|---|---|
| CN109653534A true CN109653534A (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910120036.6A Pending CN109653534A (en) | 2019-02-18 | 2019-02-18 | Set building club-footed pile strip footing straining beam and set building |
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