CN109736298B - Steel bar anchoring structure of cast-in-place pile and crown beam - Google Patents
Steel bar anchoring structure of cast-in-place pile and crown beam Download PDFInfo
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- CN109736298B CN109736298B CN201910180396.5A CN201910180396A CN109736298B CN 109736298 B CN109736298 B CN 109736298B CN 201910180396 A CN201910180396 A CN 201910180396A CN 109736298 B CN109736298 B CN 109736298B
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- piles
- crown beam
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- 238000004873 anchoring Methods 0.000 title claims abstract description 108
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 86
- 239000010959 steel Substances 0.000 title claims abstract description 86
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The invention relates to the technical field of anchoring of cast-in-place piles and crown beams, and discloses a steel bar anchoring structure of cast-in-place piles and crown beams, which comprises a plurality of supporting piles arranged in a row, crown beams above the supporting piles and a plurality of anchoring plates arranged in a one-to-one correspondence with the supporting piles, wherein each supporting pile is provided with a plurality of longitudinal steel bars arranged longitudinally, the upper ends of the longitudinal steel bars extend to the upper parts of the supporting piles, and the crown beams are arranged in an anchoring manner with each supporting pile through the longitudinal steel bars; and each longitudinal steel bar of the support pile and the anchoring plate are fixedly arranged. The crown beam and the support piles are anchored through the longitudinal steel bars to form a whole, and all the longitudinal steel bars are integrated through the anchor plates, so that the steel bars are effectively prevented from being bent when the length of the steel bars is large, and the construction difficulty is reduced; and the anchoring plate effectively improves the relative anchoring force of the support pile and the crown beam, and can effectively standardize the processing and construction of the reinforcing steel bars.
Description
Technical Field
The invention relates to the technical field of anchoring of cast-in-place piles and crown beams, in particular to a steel bar anchoring structure of cast-in-place piles and crown beams.
Background
With the continuous development of technology in the engineering construction field, large deep foundation pits are more and more, and the adoption of large-diameter concrete cast-in-place piles as supporting piles has become a common phenomenon in the industry.
When the pile top crown beam of the support pile is used as a supporting point of the support in the first passage, the crown beam is designed as a structural stress member, and at the moment, the technical specification of building foundation pit support (JGJ 120-2012) requires that the anchoring length of the longitudinal stress steel bar of the pile body penetrating into the crown beam is required to be implemented according to the specification of concrete structural design specification (GB 50010).
Because the depth of the foundation pit is increased and the environmental protection requirements are improved, the longitudinal stressed steel bars of the support piles are all large-diameter longitudinal steel bars, the anchoring length of the longitudinal steel bars is larger than the height of the crown beam according to the related standard requirements, and at the moment, the longitudinal steel bars are required to be bent to meet the anchoring length required by the standard, so that inconvenience is brought to construction, and meanwhile, the anchoring effect of the longitudinal steel bars is greatly reduced.
Disclosure of Invention
The invention aims to provide a steel bar anchoring structure of a cast-in-place pile and a crown beam, and aims to solve the problem of poor anchoring effect of longitudinal steel bars in the prior art.
The invention is realized in such a way that the steel bar anchoring structure of the cast-in-place pile and the crown beam comprises a plurality of supporting piles which are arranged in a row, the crown beam above the supporting piles and a plurality of anchoring plates which are arranged in a one-to-one correspondence with the supporting piles, wherein the supporting piles are provided with a plurality of longitudinal steel bars which are longitudinally arranged, the upper ends of the longitudinal steel bars extend to the upper parts of the supporting piles, and the crown beam is in anchoring arrangement with each supporting pile through the longitudinal steel bars; and each longitudinal steel bar of the support pile and the anchoring plate are fixedly arranged.
Further, the top of the longitudinal steel bar is provided with a threaded head, the anchor plate is provided with a plurality of connecting holes, the connecting holes are provided with fixed threads fixedly connected with the threaded heads, the threaded heads of the longitudinal steel bars are respectively embedded into the connecting holes of the anchor plate, and when the threaded heads are positioned on the fixed threads of the connecting holes, the longitudinal steel bars and the anchor plate are fixedly arranged.
Further, a plurality of connecting holes are circularly arranged in a surrounding mode, and longitudinal steel bars of the support piles are circularly arranged in a ring mode.
Further, the anchor plate has and deviates from the up end of support stake, the up end of anchor plate has the anchor strip, the both ends of anchor strip form respectively and are the arc portion that the arc was arranged, two the arc portion encircles respectively and contradicts two the surface of screw thread head.
Further, the arc-shaped part is provided with side end openings, and the side end openings of the two arc-shaped parts of the anchoring strip are arranged in opposite and opposite directions.
Further, the upper end face of the anchoring plate is provided with a plurality of anchoring strips, each anchoring strip is provided with a downward concave overlapping groove, and every two anchoring strips are staggered through the overlapping grooves along the horizontal direction; along the horizontal direction, each anchor strip is arranged in a flush way.
Further, the arc-shaped part is provided with an inner end surface which is in conflict with the thread head, and the inner end surface of the arc-shaped part is provided with the fixed thread.
Further, each of the support piles is arranged in a row along a transverse direction, each of the support pile combinations has a support length along the transverse direction, and the crown beam has a transverse length along the transverse direction; when the transverse length is smaller than the supporting length and the crown beam extends to the middle of the supporting pile, the supporting pile is provided with longitudinal steel bars which are arranged in a naked mode, one end of the anchoring plate is anchored into the crown beam, and the other end of the anchoring plate is fixedly arranged with the longitudinal steel bars which are arranged in a naked mode.
Further, the outer edge of the upper end surface of the anchoring plate is recessed downwards to form a butt joint groove, and the butt joint groove is annularly arranged; the outer edges of the lower end faces of the adjacent anchor plates are recessed upwards to form splicing grooves, and when the adjacent anchor plates are anchored on the adjacent support piles, the splicing grooves are overlapped with the butt joint grooves.
Further, the crown beam has a top end surface facing away from the support piles; the longitudinal steel bars penetrate through the crown Liang Waixing to form a penetrating section, and the penetrating section penetrates through the anchoring plate; the penetrating segment has a longitudinal length in a longitudinal direction, the anchor plate has a longitudinal height in the longitudinal direction, the longitudinal height of the anchor plate is consistent with the longitudinal length of the penetrating segment; the anchoring plate is attached and fixed to the top end face of the crown beam.
Compared with the prior art, the steel bar anchoring structure of the cast-in-place pile and the crown beam, provided by the invention, has the advantages that the crown beam and the support pile are anchored into a whole through the longitudinal steel bars, and each longitudinal steel bar is integrated through the anchor plate, so that the steel bars are effectively prevented from being bent when the length of the steel bars is large, and the construction difficulty is reduced; and the anchoring plate effectively improves the relative anchoring force of the support pile and the crown beam, and can effectively standardize the processing and construction of the reinforcing steel bars.
Drawings
Fig. 1 is a schematic perspective view of a steel bar anchoring structure of a cast-in-place pile and a crown beam provided by the invention;
fig. 2 is a schematic perspective view of another embodiment of a steel bar anchoring structure of a cast-in-place pile and a crown beam according to the present invention;
fig. 3 is a schematic top view of an anchor plate of the steel bar anchoring structure of the cast-in-place pile and the crown beam provided by the invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The implementation of the present invention will be described in detail below with reference to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely illustrative and should not be construed as limitations of the present patent, and specific meanings of the terms described above may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-3, a preferred embodiment of the present invention is provided.
The steel bar anchoring structure of the cast-in-place pile and the crown beam is used for solving the problem of poor anchoring effect of longitudinal steel bars.
The steel bar anchoring structure of the cast-in-place pile and the crown beam comprises a plurality of support piles 10, a crown beam 30 and anchor plates 20, wherein the plurality of support piles 10 are arranged in an array manner, the crown beam 30 is positioned above the support piles 10, each anchor plate 20 is arranged in a one-to-one correspondence with each support pile 10, the support piles 10 are provided with a plurality of longitudinal steel bars 11, the longitudinal steel bars 11 are longitudinally arranged, the upper ends of the longitudinal steel bars 11 extend to the upper sides of the support piles 10, and the crown beam 30 is arranged in an anchoring manner with each support pile 10 through the longitudinal steel bars 11; the longitudinal bars 11 of the support piles 10 are fixedly arranged with the anchor plates 20.
According to the steel bar anchoring structure of the cast-in-place pile and the crown beam, the crown beam 30 and the support pile 10 are anchored into a whole through the longitudinal steel bars 11, and each longitudinal steel bar 11 is integrated through the anchor plate 20, so that the steel bars are effectively prevented from being bent when the length of the steel bars is large, and the construction difficulty is reduced; in addition, the anchoring plate 20 effectively improves the relative anchoring force of the support pile 10 and the crown beam 30, and can effectively standardize the processing and construction of the reinforcing steel bars.
Specifically, the top of the longitudinal steel bar 11 is formed with a screw thread head 22, the anchor plate 20 is provided with a plurality of connecting holes 21, the connecting holes 21 are provided with fixed threads fixedly connected with the screw thread heads 22, the screw thread heads 22 of each longitudinal steel bar 11 are respectively embedded into the connecting holes 21 of each anchor plate 20, and when the screw thread heads 22 are positioned in the fixed threads of the connecting holes 21, the longitudinal steel bar 11 and the anchor plate 20 are fixedly arranged; the anchor plate 20 is effectively anchored to each longitudinal bar 11 by the engagement of the threaded head 22 with the connecting hole 21.
The plurality of connecting holes 21 are circularly arranged around, and the longitudinal steel bars 11 of the support pile 10 are circularly arranged in a ring shape; the advantage of this arrangement is that the anchoring forces of the anchoring plate 20 to the respective longitudinal bars 11 are made more uniform, and the anchoring effect of the anchoring plate 20 is improved.
The anchor plate 20 is provided with an upper end surface deviating from the support pile 10, the upper end surface of the anchor plate 20 is provided with an anchor bar 23, two ends of the anchor bar 23 are respectively provided with arc-shaped parts 24 which are arranged in an arc shape, and the two arc-shaped parts 24 respectively surround and abut against the outer surfaces of the two thread heads 22; under the action of the anchoring bars 23, the two thread heads 22 are anchored relatively, so that the anchoring effect of the anchoring plate 20 is improved.
Furthermore, the longitudinal bars 11 are fixed in pairs by the plurality of anchor bars 23, thereby improving the overall anchoring effect of the anchor plate 20.
The arc-shaped parts 24 are provided with side end openings, and the side end openings of the two arc-shaped parts 24 of the anchoring strip 23 are arranged in opposite and separated directions, so that the acting force applied by the two arc-shaped parts 24 to the two longitudinal steel bars 11 is inconsistent in direction, the whole gravity center is caused, the deflection of the anchoring plate 20 is effectively avoided, and the anchoring effect of the anchoring plate 20 is ensured.
The upper end face of the anchor plate 20 is provided with a plurality of anchor strips 23, the anchor strips 23 are provided with downward concave overlapping grooves, and every two anchor strips 23 are staggered through the overlapping grooves along the horizontal direction; in the horizontal direction, the anchoring bars 23 are arranged in a flush manner; in this way, the anchoring forces applied to each longitudinal bar 11 are in the same horizontal plane, so that the anchoring forces of each anchoring bar 23 combine to form a better anchoring effect.
The arc-shaped part 24 is provided with an inner end surface which is abutted against the thread head 22, and the inner end surface of the arc-shaped part 24 is provided with fixed threads; thus, under the action of the fixed threads of the arc-shaped part 24, the anchoring strip 23 is prevented from affecting the connection and fixation of the anchoring plate 20 and the longitudinal steel bar 11 when the anchoring plate 20 is anchored; and, under the effect of the arc-shaped portion 24, the interference area of the anchor plate 20 with the longitudinal steel bars 11 is increased, thereby improving the anchoring effect of the anchor plate 20.
Each of the support piles 10 is arranged in a row in a lateral direction in which each of the support piles 10 is combined to have a support length, and in which the crown beam 30 has a lateral length; when the transverse length is smaller than the supporting length and the crown beam 30 extends to the middle of the supporting pile 10, the supporting pile 10 is provided with longitudinal steel bars 11 which are arranged in a naked way, one end of the anchoring plate 20 is anchored into the crown beam 30, and the other end of the anchoring plate 20 is fixedly arranged with the longitudinal steel bars 11 which are arranged in a naked way; because one end of the anchoring plate 20 is anchored into the crown beam 30, the setting stability of the anchoring plate 20 is enhanced, thereby improving the anchoring effect of the anchoring plate 20; in addition, the other end of the anchor plate 20 is used for processing the longitudinal steel bars 11 which are exposed, and the steel bars do not need to be bent, so that the construction difficulty is reduced.
In addition, according to the arrangement of the anchor plate 20, reference is made to the construction of the crown beam 30, so that the construction of the crown beam 30 is facilitated.
The outer edge of the upper end surface of the anchoring plate 20 is recessed downwards to form a butt joint groove which is annularly arranged; the outer edges of the lower end surfaces of the adjacent anchor plates 20 are recessed upwards to form splicing grooves, and when the adjacent anchor plates 20 are anchored on the adjacent support piles 10, the splicing grooves and the butting grooves are overlapped; in this way, adjacent anchor plates 20 are formed integrally, thereby enhancing the anchoring effect of each anchor plate 20.
In addition, the butt joint groove is annular, and the splice groove is annular, so that adjacent anchor plates 20 are convenient to form a whole, and influence caused by each other when the adjacent anchor plates 20 are arranged is avoided.
Along the arrangement direction of the support piles 10, the butt joint grooves of the anchor plates 20 and the splicing grooves of the anchor plates 20 are arranged in a staggered manner, so that the arrangement of the anchor plates 20 is prevented from being influenced, and the anchoring effect of the anchor plates 20 is ensured.
Crown beam 30 has a top end face facing away from stake 10; the longitudinal steel bars 11 penetrate through the crown beam 30 to form a penetrating section, and the penetrating section penetrates through the anchor plate 20; the pass-out section has a longitudinal length in the longitudinal direction and the anchor plate 20 has a longitudinal height in the longitudinal direction, the longitudinal height of the anchor plate 20 being consistent with the longitudinal length of the pass-out section; the anchoring plate 20 is attached to the top end surface of the fixed crown beam 30; thus, the length of the longitudinal steel bars 11 extending out of the crown beam 30 is prevented from being overlong, so that the requirements of the technical regulations for supporting building foundation pit (JGJ 120-2012) are not met, and the longitudinal steel bars 11 are not required to be further treated, so that the construction difficulty is reduced.
When in construction, after the anchor plate 20 is connected with each longitudinal steel bar 11 on the support pile 10, the construction of the crown beam 30 is carried out, and the anchor plate 20 is anchored in the crown beam 30, so that the arrangement of the anchor plate 20 plays a role in reference, and the overlong longitudinal steel bars 11 are avoided; and the anchoring plate 20 is arranged in the crown beam 30, so that the anchoring force of the anchoring plate 20 is enhanced, the anchoring force of each longitudinal steel bar 11 is enhanced, and the relative anchoring effect of the support pile 10 and the crown beam 30 is enhanced.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. The steel bar anchoring structure of the cast-in-place pile and the crown beam is characterized by comprising a plurality of supporting piles which are arranged in a row, the crown beam above the supporting piles and a plurality of anchoring plates which are arranged in a one-to-one correspondence with the supporting piles, wherein the supporting piles are provided with a plurality of longitudinal steel bars which are longitudinally arranged, the upper ends of the longitudinal steel bars extend to the upper parts of the supporting piles, and the crown beam is in anchoring arrangement with each supporting pile through the longitudinal steel bars; each longitudinal steel bar of the support pile and the anchoring plate are fixedly arranged;
the top of the longitudinal steel bar is provided with a threaded head, the anchoring plate is provided with a plurality of connecting holes, the connecting holes are provided with fixed threads fixedly connected with the threaded heads, the threaded heads of the longitudinal steel bars are respectively embedded into the connecting holes of the anchoring plate, and when the threaded heads are positioned in the fixed threads of the connecting holes, the longitudinal steel bars and the anchoring plate are fixedly arranged;
the plurality of connecting holes are circularly arranged in a surrounding mode, and longitudinal steel bars of the support piles are circularly arranged in a ring mode.
2. The steel bar anchoring structure of cast-in-place piles and crown beams according to claim 1, wherein the anchoring plate is provided with an upper end face deviating from the supporting pile, the upper end face of the anchoring plate is provided with an anchoring strip, two ends of the anchoring strip are respectively provided with arc-shaped parts which are arranged in an arc shape, and two arc-shaped parts respectively encircle and collide with the outer surfaces of two screw heads.
3. The steel bar anchoring structure of cast-in-place piles and crown beams according to claim 2, wherein the arc-shaped portions have side end openings, and the side end openings of the two arc-shaped portions of the anchoring strip are arranged in opposite directions.
4. The steel bar anchoring structure of cast-in-place piles and crown beams according to claim 2, wherein the upper end surface of the anchoring plate is provided with a plurality of anchoring bars, the anchoring bars are provided with downward concave overlapping grooves, and every two anchoring bars are staggered through the overlapping grooves along the horizontal direction; along the horizontal direction, each anchor strip is arranged in a flush way.
5. The steel bar anchoring structure of cast-in-place piles and crown beams according to claim 2, wherein the arc-shaped portion has an inner end surface abutting against the screw head, and the inner end surface of the arc-shaped portion has the fixing screw.
6. A reinforced anchoring structure of a cast-in-place pile and a crown beam as defined in any one of claims 1-5, wherein each of said stake sets has a stake length in a lateral direction, and wherein said crown beam has a lateral length in a lateral direction; when the transverse length is smaller than the supporting length and the crown beam extends to the middle of the supporting pile, the supporting pile is provided with longitudinal steel bars which are arranged in a naked mode, one end of the anchoring plate is anchored into the crown beam, and the other end of the anchoring plate is fixedly arranged with the longitudinal steel bars which are arranged in a naked mode.
7. The steel bar anchoring structure of cast-in-place piles and crown beams according to any one of claims 2 to 5, wherein the outer edge of the upper end surface of the anchoring plate is recessed downwards to form a butt joint groove, and the butt joint groove is annularly arranged; the outer edges of the lower end faces of the adjacent anchor plates are recessed upwards to form splicing grooves, and when the adjacent anchor plates are anchored on the adjacent support piles, the splicing grooves are overlapped with the butt joint grooves.
8. A reinforced anchoring structure of a cast-in-place pile and a crown beam as defined in any one of claims 1-5, wherein the crown beam has a top end face facing away from the support pile; the longitudinal steel bars penetrate through the crown Liang Waixing to form a penetrating section, and the penetrating section penetrates through the anchoring plate; the penetrating segment has a longitudinal length in a longitudinal direction, the anchor plate has a longitudinal height in the longitudinal direction, the longitudinal height of the anchor plate is consistent with the longitudinal length of the penetrating segment; the anchoring plate is attached and fixed to the top end face of the crown beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180396.5A CN109736298B (en) | 2019-03-11 | 2019-03-11 | Steel bar anchoring structure of cast-in-place pile and crown beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910180396.5A CN109736298B (en) | 2019-03-11 | 2019-03-11 | Steel bar anchoring structure of cast-in-place pile and crown beam |
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| Publication Number | Publication Date |
|---|---|
| CN109736298A CN109736298A (en) | 2019-05-10 |
| CN109736298B true CN109736298B (en) | 2024-03-08 |
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| CN201910180396.5A Active CN109736298B (en) | 2019-03-11 | 2019-03-11 | Steel bar anchoring structure of cast-in-place pile and crown beam |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205062820U (en) * | 2015-09-18 | 2016-03-02 | 南京市测绘勘察研究院有限公司 | Double row pile supporting construction of stagnant water stake interpolation precast pile combination bored concrete pile |
| CN205954636U (en) * | 2015-09-25 | 2017-02-15 | 江苏东合南岩土科技股份有限公司 | Prestressing force steel sheet pile supporting construction |
| CN108360529A (en) * | 2018-02-07 | 2018-08-03 | 深圳宏业基岩土科技股份有限公司 | The joint structure of double-row pile apical cap beam and linking beam |
| CN209816837U (en) * | 2019-03-11 | 2019-12-20 | 深圳宏业基岩土科技股份有限公司 | Steel bar anchoring structure of cast-in-place pile and crown beam |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NZ610739A (en) * | 2012-05-18 | 2014-04-30 | Neturen Co Ltd | Rebar structure and reinforced concrete member |
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2019
- 2019-03-11 CN CN201910180396.5A patent/CN109736298B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205062820U (en) * | 2015-09-18 | 2016-03-02 | 南京市测绘勘察研究院有限公司 | Double row pile supporting construction of stagnant water stake interpolation precast pile combination bored concrete pile |
| CN205954636U (en) * | 2015-09-25 | 2017-02-15 | 江苏东合南岩土科技股份有限公司 | Prestressing force steel sheet pile supporting construction |
| CN108360529A (en) * | 2018-02-07 | 2018-08-03 | 深圳宏业基岩土科技股份有限公司 | The joint structure of double-row pile apical cap beam and linking beam |
| CN209816837U (en) * | 2019-03-11 | 2019-12-20 | 深圳宏业基岩土科技股份有限公司 | Steel bar anchoring structure of cast-in-place pile and crown beam |
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| CN109736298A (en) | 2019-05-10 |
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