CN111980013B - Large-span building supporting structure and construction method thereof - Google Patents
Large-span building supporting structure and construction method thereof Download PDFInfo
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- CN111980013B CN111980013B CN201910431243.3A CN201910431243A CN111980013B CN 111980013 B CN111980013 B CN 111980013B CN 201910431243 A CN201910431243 A CN 201910431243A CN 111980013 B CN111980013 B CN 111980013B
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
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- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a large-span building supporting structure which comprises a pile body extending into foundation soil and a column body inserted into the pile body, wherein limit mechanisms matched with each other are also arranged in the foundation soil where the pile body is located and on the column body, and the limit mechanisms are partially positioned in the pile body and are connected with the foundation soil and the column body. The invention has the advantages that the limiting mechanism is poured in the pile body, so that the pile body is stably connected with the column body. The pile body is firmly combined with the foundation soil because of extending into the foundation soil, so that the pile body has strong horizontal force resistance, and the pile body and the column body are poured together, so that the pile body and the column body are stronger in integrity, and the pile body has stronger horizontal force resistance. In addition, the effect of the length of the column body inserted into the pile body can be conveniently controlled by arranging the limiting mechanism.
Description
Technical Field
The invention relates to the technical field of building supporting structures, in particular to a large-span building supporting structure and a construction method thereof.
Background
The horizontal load borne by the building main body is mainly wind load, and in a large-span building, because the contact surface between the vertical face of the building and horizontal wind is larger, the horizontal force borne by the building from the wind load is also larger. The structure of a large span building for resisting horizontal force is mainly a support column, and in order to enable the building to have higher ability of resisting horizontal force, the support column must be reinforced. At present, a method for reinforcing a support column is to pour cement piers at the bottom end of the support column, and the cement piers belong to a rear reinforcing structure, and the integrity of the cement piers and the support column is poor, so that the cement piers have a limited function.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a large-span building supporting structure and a construction method thereof, and the large-span building supporting structure has the advantage of higher horizontal force resisting capability.
The first technical purpose of the invention is realized by the following technical scheme: the utility model provides a large-span building bearing structure, is including stretching into the pile body in the foundation soil to and insert the cylinder in the pile body, still be provided with the stop gear of mutually supporting in the foundation soil at pile body place and on the cylinder, the stop gear part is arranged in the pile body, and connects foundation soil and cylinder.
Through adopting above-mentioned technical scheme, stop gear is pour in the pile body, therefore pile body and cylinder are firm to be connected. The pile body is firmly combined with the foundation soil because of extending into the foundation soil, so that the pile body has strong horizontal force resistance, and the pile body and the column body are poured together, so that the pile body and the column body are stronger in integrity, and the pile body has stronger horizontal force resistance. In addition, the length of the column body inserted into the pile body can be conveniently controlled by arranging the limiting mechanism.
The invention is further configured to: the column body is tubular, and concrete is poured in the column body.
Through adopting above-mentioned technical scheme, at the inside pouring of cylinder there is the concrete, and after the concrete concreties, the common atress of concrete and cylinder, therefore the support column has better compressive strength.
The invention is further configured to: the upper end of the pile body extends upwards to form a reinforcing part, the lower end of the column body is surrounded by the reinforcing part, and the reinforcing part and the pile body are integrally cast.
Through adopting above-mentioned technical scheme, reinforcing part and pile body integrative the pouring form, consequently have stronger wholeness between reinforcing part and the pile body. The lower extreme of rib with the cylinder surrounds, and then makes pile body and cylinder junction receive better finishing, has also further strengthened the intensity of cylinder with the pile body junction.
The invention is further configured to: stop gear is including setting up the first connecting block on the cylinder outside surface to and set up the mounting that corresponds with first connecting block on pile body place stake hole inner wall, first connecting block distributes two with equidistance circumference mode on the cylinder at least.
Through adopting above-mentioned technical scheme, during the pile body was inserted to the in-process cylinder of construction, received the cooperation of first connecting block and mounting, restricted the length that the pile body stretched into to the cylinder for the length that the pile body was stretched into to the cylinder keeps in suitable within range.
The invention is further configured to: the fixing piece comprises a fixing shaft and a fixing block fixed at one end of the fixing shaft, an insertion hole is formed in the inner wall of the pile hole, the fixing shaft is poured in the insertion hole, a T-shaped mounting groove is formed in the fixing block, and the first connecting block is a T-shaped block and is inserted into the mounting groove.
Through adopting above-mentioned technical scheme, the fixed axle is pour in the patchhole for the mounting can combine with the foundation soil and obtain sufficient holding power in order to carry out the bearing support to the column body.
The invention is further configured to: the limiting mechanism comprises a limiting ring embedded in foundation soil and a limiting plate arranged on the column body, the limiting ring and the pile hole are coaxially arranged, and the inner diameter of the limiting ring is smaller than that of the pile hole.
Through adopting above-mentioned technical scheme, at the in-process of construction, the cylinder inserts and makes limiting plate and spacing ring contact in the pile body, and then the length that the restriction cylinder got into the pile body.
The invention is further configured to: the limiting plate is arranged in the column body, two ends of the limiting plate penetrate out of the column body, a bottom plate is fixed at the lower end of the part, located outside the column body, of the limiting plate, and the bottom plate abuts against the limiting ring.
Through adopting above-mentioned technical scheme, the bottom plate is compared with the limiting plate, and its area when contacting with the spacing ring is bigger, consequently can be with the pressure dispersion of cylinder effect on the limiting plate for the spacing ring is difficult because pressure is too big and damage.
The second technical purpose of the invention is realized by the following technical scheme: a construction method of a large-span building supporting structure comprises the following construction steps:
the method comprises the following steps: excavating to form pile holes;
step two: excavating insertion holes on the inner wall of the pile hole, wherein the insertion holes are distributed at the same height in a circumferential equidistant mode;
step three: hoisting a reinforcement cage into the pile body;
step four: inserting the fixing shaft of the fixing member into the insertion hole, and then injecting cement mortar into the insertion hole;
step five: the direction guide piece is connected with the fixing pieces to ensure the relative positions of the fixing pieces and the orientation of the mounting groove;
step six: pouring concrete into the pile hole after the cement mortar inserted into the hole is solidified;
step seven: taking down the azimuth guide piece, then inserting the column body into the pile hole, and inserting the first connecting block into the mounting groove;
step eight: supporting a template above the pile hole to surround the lower end of the column body;
step nine: pouring concrete in the template, filling the pile hole and the template with the concrete, and integrally pouring to form a pile body and a reinforcing part;
step ten: and pouring concrete into the column body.
Through adopting above-mentioned technical scheme to reasonable construction step high efficiency construction forms the structure that is used for large-span building to support. Step three is arranged after step two, so that the insertion hole is conveniently arranged on the inner wall of the pile hole, and the opening of the insertion hole can be blocked if a reinforcement cage is placed in the pile body; step six is arranged before step seven, mortar inserted into the holes is ensured to be solidified, and then supporting force enough for the column body is improved; and step ten, pouring concrete into the column body after the pile body reaches a certain strength, because the fixing piece fixed in the insertion hole is not enough to supply the support force of the column body and the concrete in the column body, and pouring the concrete into the column body after the pile body reaches a certain strength, so that the pile body can share the weight of a part of the column body and the internal concrete thereof, and the phenomenon that the fixing piece cannot provide enough support force and is damaged by the self weight of the column body and the internal concrete thereof, so that the column body falls into the pile body is avoided.
The invention is further configured to: the orientation guide member includes a connection ring, a second connection block is fixed on the outer circumference of the connection ring, and the second connection block on the connection ring is inserted into the installation groove when the orientation guide member is used.
Through adopting above-mentioned technical scheme, the mounting receives the effect of position guide, can keep suitable position each other to first connecting block on the cylinder inserts to the mounting groove in.
The third technical purpose of the invention is realized by the following technical scheme: a construction method of a large-span building supporting structure comprises the following construction steps:
the method comprises the following steps: excavating to form pile holes;
step two: continuously digging downwards at the upper end of the pile hole to form a circular embedded groove coaxial with the pile hole;
step three: hoisting a reinforcement cage into the pile body;
step four: a limiting ring coaxial with the pile hole is arranged in the embedded groove, and the limiting ring can be of a ground concrete structure formed by cast-in-place or a prefabricated metal structure;
step five: pouring concrete into the pile hole until the position of the limiting ring is below 500 mm;
step six: inserting the column body into the pile hole through the limiting ring;
step seven: supporting a template above the pile hole to surround the lower end of the column body;
step eight: pouring concrete in the template, filling the pile hole and the template with the concrete, and integrally pouring to form a pile body and a reinforcing part;
step nine: and pouring concrete into the column body.
Through adopting above-mentioned technical scheme to reasonable construction step high efficiency construction forms the structure that is used for large-span building to support. Step three is arranged after step two, so that the insertion hole is conveniently arranged on the inner wall of the pile hole, and the opening of the insertion hole can be blocked if a reinforcement cage is placed in the pile body; and step nine, pouring concrete into the column body after the pile body reaches certain strength, because the limiting ring is not enough to supply the support force of the column body and the concrete in the column body, and pouring the concrete into the column body after the pile body reaches certain strength, so that the pile body can share the weight of a part of the column body and the weight of the concrete in the column body, and the phenomenon that the position limitation cannot provide enough support force and the column body is damaged by the self weight of the column body and the concrete in the column body, and the column body is sunk into the pile body is avoided.
In conclusion, the invention has the following beneficial effects:
1. the limiting mechanism is poured in the pile body, so that the pile body is stably connected with the column body. The pile body is firmly combined with the foundation soil because of extending into the foundation soil, so that the pile body has stronger horizontal force resistance, and the pile body and the column body are poured together, so that the pile body and the column body are stronger in integrity, and have stronger horizontal force resistance;
2. the reinforcing part and the pile body are integrally cast, so that the reinforcing part and the pile body have strong integrity. The reinforcement part surrounds the lower end of the column body, so that the joint of the pile body and the column body is better finished, and the strength of the joint of the column body and the pile body is further enhanced;
3. the column body is inserted into the pile body in the construction process and is acted by the limiting mechanism, the length of the column body extending into the pile body is limited, and the length of the column body extending into the pile body is kept in a proper range.
Drawings
FIG. 1 is a schematic view of the overall structure of the first and second embodiments;
FIG. 2 is a schematic cross-sectional view of the first and second embodiments;
FIG. 3 is a schematic structural view of an azimuth guide according to the first and second embodiments;
fig. 4 is a schematic view of the overall structure of the third and fourth embodiments.
Reference numerals: 1. a pile body; 2. a cylinder; 3. foundation soil; 4. a first connection block; 5. a fixing member; 6. a fixed shaft; 7. a fixed block; 8. mounting grooves; 9. an insertion hole; 10. a reinforcing portion; 11. an azimuth guide; 12. a connecting ring; 13. a second connecting block; 14. a limiting ring; 15. a limiting plate; 16. mounting holes; 17. a base plate; 19. pile holes; 20. and (6) pre-burying the groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 and 2, the large-span building supporting structure comprises a pile body 1 of a cast-in-place pile, which is arranged at the position of a supporting column, and a steel column body 2, the lower end of which is vertically inserted into the pile body 1, wherein a limiting mechanism which is matched with the pile body 1 is also arranged in foundation soil 3 where the pile body 1 is arranged and on the column body 2.
The column body 2 is in a square long tubular shape, and the limiting mechanism comprises a first connecting block 4 fixed on each side surface of the column body 2 and a fixing piece 5 arranged on the inner wall of the pile hole 19 where the pile body 1 is located and corresponding to the first connecting block 4. The fixing member 5 includes a fixing shaft 6 and a fixing block 7 fixed to one end of the fixing shaft 6, a T-shaped mounting groove 8 is formed in the fixing block 7, and the first connecting block 4 is a T-shaped block and is inserted into the mounting groove 8.
An inclined insertion hole 9 is opened on the inner wall of the pile hole 19 where the pile body 1 is located, the fixing shaft 6 is inserted into the insertion hole 9, and the fixing shaft 6 is fixed therein by cement mortar poured into the insertion hole 9. The first connecting block 4 and the fixing block 7 are both poured in the pile body 1, so that the pile body 1 and the column body 2 are stably connected. And because the pile body 1 and the column body 2 are poured together, the pile body 1 and the column body 2 have stronger integration, and therefore have stronger horizontal force resistance.
Concrete is poured inside the column body 2, and after the concrete is solidified, the concrete and the column body 2 bear force together, so that the support column has better compressive strength. Further, a reinforcing portion 10 extends upward from the upper end of pile body 1, and reinforcing portion 10 is cylindrical and surrounds the lower end of column body 2. The reinforcing portion 10 is formed by casting integrally with the pile body 1, and therefore the reinforcing portion 10 and the pile body 1 have strong integrity. The external diameter of reinforcing part 10 is greater than the external diameter of pile body 1, and then makes pile body 1 and post 2 junction receive better finishing, has also further strengthened the intensity of post 2 and pile body 1 junction.
Example two:
as shown in fig. 1 and 2, a construction method of a large-span building support structure according to an embodiment of the present invention includes:
the method comprises the following construction steps:
the method comprises the following steps: excavating to form pile holes 19;
step two: four insertion holes 9 are dug on the inner wall of the pile hole 19, and the insertion holes 9 are distributed in a circumferential equidistant mode at the same height;
step three: hoisting a reinforcement cage (not shown in the figure) into the pile body 1;
step four: inserting the fixing shaft 6 of the fixing member 5 into the insertion hole 9 and then injecting cement mortar into the insertion hole 9;
step five: is connected with the fixing pieces 5 by an orientation guide 11 (refer to fig. 3) to ensure the relative position between the fixing pieces 5 and the orientation of the mounting groove 8; the azimuth guide 11 comprises a connecting ring 12, a second connecting block 13 is fixed on the outer circumference of the connecting ring 12, and four second connecting blocks 13 are arranged along the circumferential direction; when the orientation guide 11 is used, the second connecting block 13 on the connecting ring 12 is inserted into the mounting groove 8;
step six: pouring concrete into the pile hole 19 after the cement mortar in the insertion hole 9 is solidified, wherein the concrete is poured to the position of the insertion hole 9 below 500 mm;
step seven: removing the azimuth guide 11, then inserting the column body 2 into the pile hole 19, and allowing the second connection block 13 to be inserted into the installation groove 8;
step eight: a template is arranged above the pile hole 19 to surround the lower end of the column body 2;
step nine: pouring concrete in the template, filling the pile hole 19 and the template with the concrete, and integrally pouring to form the pile body 1 and the reinforcing part 10;
step ten: after the pile body 1 reaches a certain strength, concrete is poured into the column body 2.
Example three:
the differences compared with the first embodiment are that:
as shown in fig. 4, the limiting mechanism includes a limiting ring 14 embedded in the foundation soil 3 and a limiting plate 15 provided on the column body 2. Wherein the stop collar 14 is coaxially disposed with the stake hole 19 and the inner diameter of the stop collar 14 is smaller than the inner diameter of the stake hole 19. The stop collar 14 may be a cast earth concrete structure or a metal structure. Corresponding mounting holes 16 are formed in two opposite side surfaces of the pile body 1, and the limiting plates 15 are arranged in the column body 2 and two ends of the limiting plates penetrate out of two ends of the mounting holes 16. The lower end of the part of the limit plate 15 outside the column body 2 is fixed with a bottom plate 17, and the bottom plate 17 abuts against the limit ring 14. The part of the limiting ring 14 within the pile hole 19 and the limiting plate 15 are both poured into the pile body 1, so that the pile body 1 and the column body 2 are firmly connected and have strong integrity.
Example four:
aiming at the construction method of the large-span building supporting structure recorded in the third embodiment, the construction method comprises the following steps:
the method comprises the following construction steps:
the method comprises the following steps: excavating to form pile holes 19;
step two: continuously digging downwards at the upper end of the pile hole 19 to form a circular embedded groove 20 coaxial with the pile hole 19;
step three: hoisting a reinforcement cage into the pile body 1;
step four: a limiting ring 14 which is coaxial with the pile hole 19 is arranged in the embedded groove 20, and the limiting ring 14 can be of a ground concrete structure formed by cast-in-place or a prefabricated metal structure;
step five: pouring concrete into the pile hole 19 until the position of the limiting ring 14 is below 500 mm;
step six: inserting the column body 2 into the pile hole 19 through the limiting ring 14;
step seven: a template is arranged above the pile hole 19 to surround the lower end of the column body 2;
step eight: pouring concrete in the template, filling the pile hole 19 and the template with the concrete, and integrally pouring to form the pile body 1 and the reinforcing part 10;
step nine: after the pile body 1 reaches a certain strength, concrete is poured into the column body 2.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (2)
1. A construction method of a large-span building supporting structure is characterized by comprising the following steps: the large-span building supporting structure comprises a pile body (1) extending into foundation soil (3) and a column body (2) inserted into the pile body (1), wherein limiting mechanisms matched with each other are also arranged in the foundation soil (3) where the pile body (1) is located and on the column body (2), and the limiting mechanisms are partially located in the pile body (1) and are connected with the foundation soil (3) and the column body (2);
the column body (2) is tubular, and concrete is poured in the column body (2);
the upper end of the pile body (1) extends upwards to form a reinforcing part (10), the lower end of the column body (2) is surrounded by the reinforcing part (10), and the reinforcing part (10) and the pile body (1) are integrally cast;
the limiting mechanism comprises first connecting blocks (4) arranged on the outer side surface of the column body (2) and fixing pieces (5) which are arranged on the inner wall of a pile hole (19) where the pile body (1) is located and correspond to the first connecting blocks (4), and at least two first connecting blocks (4) are distributed on the column body (2) in an equidistant circumferential mode;
the fixing piece (5) comprises a fixing shaft (6) and a fixing block (7) fixed at one end of the fixing shaft (6), an insertion hole (9) is formed in the inner wall of the pile hole (19), the fixing shaft (6) is poured into the insertion hole (9), a T-shaped mounting groove (8) is formed in the fixing block (7), and the first connecting block (4) is a T-shaped block and is inserted into the mounting groove (8);
the construction method of the large-span building supporting structure comprises the following construction steps:
the method comprises the following steps: excavating to form pile holes (19);
step two: digging insertion holes (9) on the inner wall of the pile hole (19), wherein the insertion holes (9) are distributed at the same height in a circumferential equidistant mode;
step three: hoisting a reinforcement cage into the pile body (1);
step four: inserting the fixing shaft (6) of the fixing member (5) into the insertion hole (9), and then injecting cement mortar into the insertion hole (9);
step five: the fixed parts (5) are connected by an orientation guide (11) to ensure the relative positions of the fixed parts (5) and the orientation of the mounting groove (8);
step six: pouring concrete into the pile hole (19) after the cement mortar inserted into the hole (9) is solidified;
step seven: removing the azimuth guide (11), then inserting the column (2) into the pile hole (19), and inserting the first connecting block (4) into the mounting groove (8);
step eight: a template is supported above the pile hole (19) to surround the lower end of the column body (2);
step nine: pouring concrete in the template, filling the pile hole (19) and the template with the concrete, and integrally pouring to form a pile body (1) and a reinforcing part (10);
step ten: concrete is poured into the column body (2).
2. The construction method of a large-span building support structure according to claim 1, wherein: the orientation guide (11) comprises a connecting ring (12), a second connecting block (13) is fixed on the outer circumference of the connecting ring (12), and when the orientation guide (11) is used, the second connecting block (13) on the connecting ring (12) is inserted into the mounting groove (8).
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| CN201910431243.3A CN111980013B (en) | 2019-05-22 | 2019-05-22 | Large-span building supporting structure and construction method thereof |
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| CN201910431243.3A CN111980013B (en) | 2019-05-22 | 2019-05-22 | Large-span building supporting structure and construction method thereof |
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| CN111980013B true CN111980013B (en) | 2021-12-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1109165C (en) * | 1995-09-27 | 2003-05-21 | 福州市建筑设计院 | Reinforced concrete post containing steel pipe high-strength column for basement building and construction method |
| CN202730793U (en) * | 2012-02-29 | 2013-02-13 | 中国电力科学研究院 | Micropile flange excavated tower foundation |
| CN203891009U (en) * | 2014-03-25 | 2014-10-22 | 中国建筑第四工程局有限公司 | Structure for installing reverse steel pipe column in rotary excavating pile hole |
| CN203960896U (en) * | 2014-07-25 | 2014-11-26 | 成都城电电力工程设计有限公司 | Batter post pile foundation |
| CN104912062A (en) * | 2015-07-02 | 2015-09-16 | 广东省第四建筑工程有限公司 | Concrete pile steel pipe column continuous construction method |
| CN106013206B (en) * | 2016-06-03 | 2017-12-29 | 广东省源天工程有限公司 | Steel pipe column positioning device, steel core concrete column and pile foundation attachment structure |
| CN106245627A (en) * | 2016-08-30 | 2016-12-21 | 中铁三局集团有限公司 | A kind of quick positioning construction method of steel pipe stanchion |
| CN107288357A (en) * | 2017-08-18 | 2017-10-24 | 云南省建设投资控股集团有限公司 | In reverse construction steel pipe column plumbing device and utilize the device carry out pile integrated construction technique |
| CN107859052A (en) * | 2017-11-02 | 2018-03-30 | 重庆大学 | The adjustable single pile foundation and its construction method of a kind of connecting bridge rear column |
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