CN118881096B - Tensioning anchoring structure for integral seamless terrace - Google Patents
Tensioning anchoring structure for integral seamless terrace Download PDFInfo
- Publication number
- CN118881096B CN118881096B CN202411092624.0A CN202411092624A CN118881096B CN 118881096 B CN118881096 B CN 118881096B CN 202411092624 A CN202411092624 A CN 202411092624A CN 118881096 B CN118881096 B CN 118881096B
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- tensioning
- anchoring
- concrete
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- 238000004873 anchoring Methods 0.000 title claims abstract description 29
- 238000010276 construction Methods 0.000 claims abstract description 16
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 238000007788 roughening Methods 0.000 claims abstract description 5
- 238000005336 cracking Methods 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004904 shortening Methods 0.000 claims 1
- 230000000452 restraining effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 210000002435 tendon Anatomy 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/125—Anchoring devices the tensile members are profiled to ensure the anchorage, e.g. when provided with screw-thread, bulges, corrugations
-
- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
本发明涉及无缝地坪施工领域，公开了一种用于整体无缝地坪的张拉锚固结构，包括与第一板块中锚索的一端连接的张拉端、与第二板块中锚索的一端连接的锚固端以及与张拉端、锚固端分别连接的连接器，第二板块与所第一板块紧邻设置，且锚固端对应设置于靠近张拉端的一侧。通过设置的连接器，使得第一板块与第二板块之间的拼接缝不会因为混凝土的收缩位移而分开变大，从而约束了混凝土的开裂；通过设置的张拉端、锚固端以及连接器，使得本发明在进行大面积的整体混凝土无缝地坪施工时，不再需要在相邻板块之间留置后浇带，不仅可以缩短施工工期，还可以规避后浇带清理与凿毛所带来的渗漏隐患。
The present invention relates to the field of seamless floor construction, and discloses a tensioning and anchoring structure for an integral seamless floor, including a tensioning end connected to one end of an anchor cable in a first plate, an anchoring end connected to one end of an anchor cable in a second plate, and a connector respectively connected to the tensioning end and the anchoring end, wherein the second plate is arranged adjacent to the first plate, and the anchoring end is correspondingly arranged on a side close to the tensioning end. By means of the arranged connector, the joint seam between the first plate and the second plate will not separate and become larger due to the shrinkage displacement of the concrete, thereby restraining the cracking of the concrete; by means of the arranged tensioning end, anchoring end and connector, the present invention does not need to leave a post-cast strip between adjacent plates when constructing an integral concrete seamless floor over a large area, which can not only shorten the construction period, but also avoid the leakage risk caused by cleaning and roughening the post-cast strip.
Description
Technical Field
The invention relates to the field of seamless terrace construction, in particular to a tensioning anchoring structure for an integral seamless terrace.
Background
When the integral concrete terrace is constructed, concrete changes along with time, hydration reaction is deepened continuously, self plasticity is reduced, and compressive strength is improved continuously. In the process, the concrete floor board can be subjected to hydration thermal stress, temperature and humidity stress, self-gravity, friction force at the bottom of the board and other internal and external forces to expand, shrink and deform, so that various cracks, hollows, staggered tables and other defects with different widths and different directions are formed.
In order to solve the above-mentioned defect, in the prior art, a prestressed tendon is usually arranged in a concrete terrace plate, and after the strength of the concrete reaches the design requirement, a prestressed pressure is applied to the concrete by stretching the prestressed tendon. When the area of the concrete terrace is large, the terrace is generally divided into blocks, a post-cast strip is reserved between adjacent plates, and when the prestressed tendons of the adjacent plates are fully tensioned, micro-expansion concrete with a mark higher than that of the original structure is used for post-cast strip construction.
However, the method has the problems that (1) before the post-cast strip is constructed, the post-cast strip construction can be carried out only after the concrete pouring of the adjacent plates and the tensioning of the prestressed tendons are completed, so that the construction period is long due to long time interval, and (2) when the post-cast strip is constructed, the working procedures of cleaning and roughening the structural surfaces on two sides of the post-cast strip are numerous and hidden leakage hazards exist.
Disclosure of Invention
Based on the above problems, the present invention aims to provide a tensioning and anchoring structure for an integral seamless terrace, so as to solve the problems of the prior art.
The invention adopts the following technical scheme:
The invention provides a tensioning anchoring structure for an integral seamless terrace, which comprises the following components:
the tensioning end is connected with one end of the anchor cable in the first plate;
The anchoring end is connected with one end of an anchor rope in the second plate, the second plate is arranged close to the first plate, and the anchoring end is correspondingly arranged on one side close to the tensioning end;
And the two ends of the connector are respectively connected with the tensioning end and the anchoring end.
Furthermore, the anchor cable is movably arranged in the protective sleeve in a penetrating way, and a cementing body is arranged between the protective sleeve and the anchor cable.
Still further, stretch-draw end is including the cover to be established the first spiral muscle of protective sheath periphery, the one end and the anchor pad of first spiral muscle are connected, the laminating is provided with first anchor plate in the anchor pad, can dismantle on the first anchor plate and be connected with first anchor ring, the one end of the anchor rope in the first plate runs through in proper order the anchor pad first anchor plate first anchor ring, just first anchor ring with the anchor rope is through first clamping piece clamp fastening.
Still further, the anchor end includes the second anchor plate, can dismantle on the second anchor plate and be connected with the second anchor ring, the one end of the anchor rope in the second plate runs through in proper order the second anchor plate the second anchor ring, just the second anchor ring with the anchor rope is through the tight fixedly of second clamping piece clamp.
Still further, the connector comprises a bolt, wherein the screw rod end of the bolt sequentially penetrates through the second anchor plate and the first anchor plate and then is in threaded connection with the anchor seat, a spring is arranged between the second anchor plate and the first anchor plate, the spring is sleeved on the screw rod of the bolt, and the two ends of the spring respectively prop against the second anchor plate and the first anchor plate.
Still further still, still include the stiff end, the stiff end includes the second spiral muscle, the second spiral muscle cover is established the protective sheath is keeping away from the periphery of stretch-draw end one side, the second spiral muscle is connected with the backing plate, be provided with the extrusion cover in the mounting hole at backing plate middle part, the one end of anchor rope inserts in the extrusion cover and with fixed connection.
Compared with the prior art, the invention has the beneficial technical effects that:
The connector is arranged, so that the splicing seam between the first plate and the second plate cannot be separated and enlarged due to shrinkage displacement of the concrete, and cracking of the concrete is restrained; through the tensioning end, the anchoring end and the connector, when the large-area integral concrete seamless terrace construction is carried out, a post-cast strip is not needed to be reserved between adjacent plates, so that the construction period can be shortened, and the leakage hidden trouble caused by cleaning and roughening of the post-cast strip can be avoided.
Drawings
The invention is further described with reference to the following description of the drawings.
FIG. 1 is a schematic illustration of the installation and use of a tension anchor structure for an integral seamless floor of the present invention;
FIG. 2 is a schematic perspective view of a tensile anchor structure for an integral seamless floor of the present invention;
FIG. 3 is an exploded view of the tensioning end of the present invention;
FIG. 4 is a schematic perspective view of an anchor according to the present invention;
FIG. 5 is a schematic perspective view of a fixed end of the present invention;
fig. 6 is an exploded view of the fixed end of the present invention.
The reference numerals are 1, a tensioning end, 101, a first spiral rib, 102, an anchor seat, 1021, a bulge, 1022, a nut, 1023, a connecting plate, 1024, a through hole, 103, a first anchor plate, 104, a first anchor ring, 105, a first clamping piece, 2, a first plate, 3, an anchor rope, 4, an anchor end, 401, a second anchor plate, 402, a second anchor ring, 5, a second plate, 6, a connector, 601, a bolt, 602, a spring, 7, a protective sleeve, 8, a fixed end, 801, a second spiral rib, 802, a backing plate, 8021, a mounting hole, 8022, a binding hole, 803 and an extrusion sleeve.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1-6, the embodiment discloses a tensioning anchoring structure for an integral seamless terrace, which comprises a tensioning end 1, wherein the tensioning end 1 is connected with one end of an anchor rope 3 in a first plate 2, an anchoring end 4 is connected with one end of the anchor rope 3 in a second plate 5, the second plate 5 is closely adjacent to the first plate 2, the anchoring end 4 is correspondingly arranged on one side close to the tensioning end 1, a connector 6 is arranged between the tensioning end 1 and the anchoring end 4, and two ends of the connector 6 are respectively connected with the tensioning end 1 and the anchoring end 4.
In the embodiment, after the concrete pouring of the first plate 2 is completed and the concrete strength reaches the design requirement, the anchor cable 3 in the first plate 2 is tensioned through the tensioning end 1, after the anchor cable 3 in the first plate 2 is tensioned, the anchoring end 4 is connected with the tensioning end 1 through the connector 6, and after the tensioning end 1 is connected with the anchor cable 3 in the second plate 5, the concrete of the second plate 5 is poured. The anchoring end 4 in the second plate 5 is connected with the tensioning end 1 in the first plate 2 through the connector 6, so that the position of the anchoring end 4 is not inclined and not moved in the process of pouring concrete in the second plate 5.
By adopting the scheme, the splice joint between the first plate 2 and the second plate 5 is not separated and enlarged due to shrinkage displacement of concrete through the arranged connector 6, so that cracking of the concrete is restrained, and by the arrangement of the structure, when the large-area integral concrete seamless terrace is constructed, a post-cast strip is not needed to be reserved between adjacent plates, so that the construction period is shortened, and the hidden trouble of leakage caused by cleaning and roughening of the post-cast strip can be avoided.
According to the further optimization scheme, the anchor rope 3 is movably arranged in the protective sleeve 7 in a penetrating mode, and an adhesive joint body is arranged between the protective sleeve 7 and the anchor rope 3.
Specifically, the anchor cable 3 is a steel anchor cable, the protective sleeve 7 is made of PE material, and the cementing body is set to be thermosetting, which is the prior art. After the concrete placement of the first and second panels 2, 5 is completed, the glue joint is able to bond the anchor cable 3 with the protective sleeve 7 firmly as the temperature in the concrete changes.
It should be noted that, in the conventional post Zhang Fashi man-hour, the anchor cable 3 is usually disposed in a galvanized corrugated pipe duct, and after the anchor cable 3 is tensioned, high-pressure grouting is required to be performed in the corrugated pipe duct by using high-strength cement slurry. Not only the construction process is more, but also more materials are consumed.
By adopting the scheme, after the anchor cable 3 is tensioned, high-pressure grouting is not needed to be performed in the protective sleeve 7, so that the traditional post-tensioning construction process is optimized, the construction process is simplified, the construction period is shortened, and the construction cost is reduced.
Further optimizing scheme, stretch-draw end 1 includes the cover and establishes the first spiral muscle 101 at sheath 7 periphery, and the one end and the anchor pad 102 of first spiral muscle 101 are connected, and the laminating is provided with first anchor plate 103 in the anchor pad 102, can dismantle on the first anchor plate 103 and be connected with first anchor ring 104, and anchor rope 3's in the first plate 2 one end runs through anchor pad 102, first anchor plate 103, first anchor ring 104 in proper order, and first anchor ring 104 is fixed through the clamp of first clamping piece 105 with anchor rope 3.
In this embodiment, the anchor seat 102 is made of PE, as shown in fig. 4, nuts 1022 are fixed in the protrusions 1021 on both sides of the top of the anchor seat 102, the nuts 1022 are used for connecting with the connector 6, a connecting plate 1023 is fixed on the outer wall of the left protrusion 1021, a through hole 1024 is provided on the top of the connecting plate 1023, and one end of the first spiral rib 101 is inserted into the through hole 1024, so that the connection between the first spiral rib 101 and the anchor seat 102 can be achieved.
As shown in fig. 2 and 3, the first anchor plate 103 is an oblong steel forged anchor plate, the first anchor ring 104 is detachably connected with the first anchor plate 103 through threads, the first anchor plate 103, the first anchor ring 104 and the first clamping piece 105 are all made of steel, the first clamping piece 105 is composed of two half bodies, and the two half bodies are plugged between the first anchor ring 104 and the anchor cable 3.
According to a further optimization scheme, as shown in fig. 2, the anchoring end 4 comprises a second anchor plate 401, a second anchor ring 402 is detachably connected to the second anchor plate 401, one end of an anchor rope 3 in the second plate 5 sequentially penetrates through the second anchor plate 401 and the second anchor ring 402, and the second anchor ring 402 and the anchor rope 3 are clamped and fixed through a second clamping piece.
In this embodiment, the second anchor plate 401, the second anchor ring 402, and the second clip are identical to the first anchor plate 103, the first anchor ring 104, and the first clip 105, respectively.
In a further optimized scheme, as shown in fig. 2, the connector 6 comprises a bolt 601, the screw rod end of the bolt 601 penetrates through the second anchor plate 401 and the first anchor plate 103 in sequence and then is connected with the anchor seat 102 in a threaded mode, a spring 602 is arranged between the second anchor plate 401 and the first anchor plate 103, the spring 602 is sleeved on the screw rod of the bolt 601, and two ends of the spring 602 respectively abut against the second anchor plate 401 and the first anchor plate 103.
In this embodiment, two bolts 601 and springs 602 are respectively provided, the screw end of the bolt 601 is in threaded connection with a nut 1022 in the anchor seat 102, and the effect of connecting and positioning the second anchor plate 401 is achieved through the provided bolts 601 and springs 602.
It is worth noting that when the length of the anchor rope 3 in the first plate 2 exceeds 80 meters, the anchor rope 3 is tensioned in a two-end tensioning mode, namely, the two ends of the anchor rope 3 are provided with tensioning ends 1;
When unidirectional tensioning is adopted, a fixed end 8 for fixing the end head of the anchor rope 3 is arranged on one side, far away from the tensioning end 1, of the anchor rope 3, as shown in fig. 5 and 6, the fixed end 8 comprises a second spiral rib 801, the second spiral rib 801 is sleeved on the periphery, far away from the tensioning end 1, of the protective sleeve 7, the second spiral rib 801 is fixedly connected with a base plate 802, an extrusion sleeve 803 is fixedly welded in a mounting hole 8021 in the middle of the base plate 802, and one end of the anchor rope 3 is inserted into the extrusion sleeve 803 and fixedly connected with the extrusion sleeve 803. Specifically, the backing plate 802 is made of cast steel, binding holes 8022 are formed in two sides of the backing plate 802, binding and fixing are performed on the second spiral rib 801 after binding wires are penetrated into the binding holes 8022, and the extrusion sleeve 803 is made of steel.
The fixed end 8, the anchoring end 4 and the tensioning end 1 are all buried in the concrete of the terrace.
The above embodiments are only illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (2)
1. A stretch-draw anchor structure for whole seamless terrace is characterized in that includes:
the tensioning end (1) is connected with one end of an anchor rope (3) in the first plate (2);
The anchoring end (4) is connected with one end of the anchor cable (3) in the second plate (5), the second plate (5) is closely adjacent to the first plate (2), and the anchoring end (4) is correspondingly arranged on one side close to the tensioning end (1);
the two ends of the connector (6) are respectively connected with the tensioning end (1) and the anchoring end (4);
The anchor cable (3) is movably arranged in the protective sleeve (7) in a penetrating way, and a cementing body is arranged between the protective sleeve (7) and the anchor cable (3);
the tensioning end (1) comprises a first spiral rib (101) sleeved on the periphery of the protective sleeve (7), one end of the first spiral rib (101) is connected with an anchor seat (102), a first anchor plate (103) is arranged in the anchor seat (102) in a fit mode, a first anchor ring (104) is detachably connected to the first anchor plate (103), one end of an anchor rope (3) in the first plate (2) sequentially penetrates through the anchor seat (102), the first anchor plate (103) and the first anchor ring (104), and the first anchor ring (104) and the anchor rope (3) are clamped and fixed through a first clamping piece (105);
The anchoring end (4) comprises a second anchor plate (401), a second anchor ring (402) is detachably connected to the second anchor plate (401), one end of an anchor rope (3) in the second plate (5) sequentially penetrates through the second anchor plate (401) and the second anchor ring (402), and the second anchor ring (402) and the anchor rope (3) are clamped and fixed through a second clamping piece;
The connector (6) comprises a bolt (601), wherein the screw rod end of the bolt (601) sequentially penetrates through the second anchor plate (401) and the first anchor plate (103) and then is in threaded connection with the anchor seat (102), a spring (602) is arranged between the second anchor plate (401) and the first anchor plate (103), the spring (602) is sleeved on the screw rod of the bolt (601), and two ends of the spring (602) respectively prop against the second anchor plate (401) and the first anchor plate (103);
The connector (6) ensures that the splice joint between the first plate (2) and the second plate (5) is not separated and enlarged due to shrinkage displacement of concrete, thereby restricting cracking of the concrete, and when the large-area integral concrete seamless terrace construction is carried out, a post-cast strip is not needed to be reserved between adjacent plates, thereby shortening the construction period and avoiding the hidden trouble of leakage caused by cleaning and roughening of the post-cast strip.
2. The tensioning anchoring structure for the integral seamless terrace according to claim 1, further comprising a fixed end (8), wherein the fixed end (8) comprises a second spiral rib (801), the second spiral rib (801) is sleeved on the periphery of one side, far away from the tensioning end (1), of the protective sleeve (7), the second spiral rib (801) is connected with a base plate (802), an extrusion sleeve (803) is arranged in a mounting hole (8021) in the middle of the base plate (802), and one end of the anchor cable (3) is inserted into the extrusion sleeve (803) and fixedly connected with the extrusion sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411092624.0A CN118881096B (en) | 2024-08-09 | 2024-08-09 | Tensioning anchoring structure for integral seamless terrace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411092624.0A CN118881096B (en) | 2024-08-09 | 2024-08-09 | Tensioning anchoring structure for integral seamless terrace |
Publications (2)
| Publication Number | Publication Date |
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| CN118881096A CN118881096A (en) | 2024-11-01 |
| CN118881096B true CN118881096B (en) | 2025-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202411092624.0A Active CN118881096B (en) | 2024-08-09 | 2024-08-09 | Tensioning anchoring structure for integral seamless terrace |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201459716U (en) * | 2009-08-03 | 2010-05-12 | 天津市建筑科学研究院 | Retard-bonded or unbonded post-tensioned prestressing filling pile |
| CN212715316U (en) * | 2020-05-13 | 2021-03-16 | 浙江汇元建设工程有限公司 | Ultra-long concrete building structure provided with connector prestressed tendons |
| CN114135059A (en) * | 2020-09-04 | 2022-03-04 | 南京市市政设计研究院有限责任公司 | Connector and method for connecting unbonded prestressed steel strands in post-cast strip |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101065217B1 (en) * | 2010-02-19 | 2011-09-16 | 주식회사고려이엔시 | Tension device for tension and retension |
| CN108708368B (en) * | 2018-09-13 | 2018-12-07 | 上海建工集团股份有限公司 | Multistage anchoring prestress muscle continuous underground wall structure and its construction method |
| CN210917963U (en) * | 2019-09-30 | 2020-07-03 | 安徽永昊建设工程有限公司 | Clamping piece type prestressed anchorage |
-
2024
- 2024-08-09 CN CN202411092624.0A patent/CN118881096B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201459716U (en) * | 2009-08-03 | 2010-05-12 | 天津市建筑科学研究院 | Retard-bonded or unbonded post-tensioned prestressing filling pile |
| CN212715316U (en) * | 2020-05-13 | 2021-03-16 | 浙江汇元建设工程有限公司 | Ultra-long concrete building structure provided with connector prestressed tendons |
| CN114135059A (en) * | 2020-09-04 | 2022-03-04 | 南京市市政设计研究院有限责任公司 | Connector and method for connecting unbonded prestressed steel strands in post-cast strip |
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| CN118881096A (en) | 2024-11-01 |
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