CN108396985B - Hole plugging structure - Google Patents
Hole plugging structure Download PDFInfo
- Publication number
- CN108396985B CN108396985B CN201810269624.1A CN201810269624A CN108396985B CN 108396985 B CN108396985 B CN 108396985B CN 201810269624 A CN201810269624 A CN 201810269624A CN 108396985 B CN108396985 B CN 108396985B
- Authority
- CN
- China
- Prior art keywords
- hole
- steel
- edge
- steel plate
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 157
- 239000010959 steel Substances 0.000 claims abstract description 157
- 229910000746 Structural steel Inorganic materials 0.000 claims description 21
- 239000004570 mortar (masonry) Substances 0.000 claims description 16
- 229920000642 polymer Polymers 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a hole plugging prefabricated structure, which comprises two steel plates and an H-shaped steel rib plate, wherein the two steel plates comprise a first steel plate and a second steel plate; the H-shaped steel rib plate is arranged between the two steel plates; the two side plates of the H-shaped steel rib plate are respectively connected with the two steel plates; the edge of the first steel plate protrudes out of the edge of the second steel plate. The invention further provides a hole plugging structure. Through the structure, the hole plugging prefabricated structure has the advantages of good integrity, high rigidity, light weight and high bearing capacity; the bearing capacity and the seepage-proofing capacity of the structure after hole plugging are improved, and crack development and damage of the new and old weak bonding surfaces are reduced.
Description
Technical Field
The invention relates to a hole plugging structure, in particular to a hole plugging structure for plugging reserved holes.
Background
After the construction of the main structure is completed, the construction engineering generally leaves a plurality of holes to be plugged later. The later plugging of the holes is caused by a plurality of reasons, such as a top plate and a middle plate of the end well part of the main body structure of the subway station need to be reserved with a shield originating well and a receiving well; in the construction period, temporary construction holes are reserved for facilitating the transportation of construction materials or meeting the requirement of soil discharge. At present, the hole plugging is generally carried out by firstly planting ribs and then pouring concrete, a formwork and a support are needed, the working procedure is complex, the plugging material consumption is large, the hole plugging quality is difficult to ensure, on one hand, the patch-shaped bad appearance is formed by repeated repair, and the overall attractiveness is reduced; on the other hand, if the plugging structure has small rigidity and poor stress performance, the difference between the new and old bonding surfaces is large, so that the bonding degree between the plugging structure and the original structure surface is weak, and under the action of various loads, a plurality of cracks can appear at the edges of the holes, so that the leakage phenomenon is caused. Therefore, it is necessary to invent a simple and reliable structure to reduce the damage caused by poor hole blocking quality and ensure the normal use and the beautiful appearance of the building.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a prefabricated hole plugging structure which can effectively plug reserved holes.
Another object of the present invention is to provide a hole plugging structure.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the hole plugging prefabricated structure comprises two steel plates and an H-shaped steel rib plate, wherein the two steel plates comprise a first steel plate and a second steel plate; the H-shaped steel rib plate is arranged between the two steel plates; the two side plates of the H-shaped steel rib plate are respectively connected with the two steel plates; the edge of the first steel plate protrudes out of the edge of the second steel plate.
Preferably, the steel plate is a rectangular steel plate, and the H-shaped steel rib plate and the steel plate are welded in full-scale.
Preferably, the thickness of the steel plate is 18-25 mm, ribs are arranged on the surface of the steel plate, and the thickness of the ribs is 4-8 mm; the welding thickness of the H-shaped steel rib plate and the steel plate is 7-10 mm.
Preferably, the H-shaped steel rib plates are arranged along the length direction of the steel plate; the H-shaped steel rib plates are arranged at intervals of 0.8-1.2 m along the long side direction of the steel plate.
The hole plugging structure is characterized by comprising the hole plugging prefabricated structure;
the wall of the hole, the structural steel bars at the edge of the hole, the polymer waterproof mortar layer and the steel armpit angle are also included;
the side wall is a two-stage step side wall, and the hole is divided into a narrow hole site and a wide hole site; the reinforcing steel bars of the hole edge periphery at the top of the wide hole site are partially exposed, and the exposed part extends from the hole edge to the edge structure direction;
the hole plugging prefabricated structure is arranged at the wide hole site; the edge of the first steel plate is arranged on the edge structure of the hole, and grooves are respectively formed in the edge of the first steel plate; the structural steel bars around the exposed hole edges of the wide holes are placed in the grooves and welded with the first steel plate;
the steel armpit angle is arranged on the narrow hole site and is tightly attached to the side wall, one wing edge of the steel armpit angle is welded with structural steel bars around the hole edge of the narrow hole, and the other wing edge is welded with the surface of the second steel plate;
the polymer waterproof mortar layer is arranged on the outer side face of the first steel plate and extends to the edge structure of the hole, and covers the exposed structural steel bars around the edge of the hole.
Preferably, the length of the exposed hole side structural reinforcement at the wide hole site is 22 times the diameter of the hole side structural reinforcement.
Preferably, the length of the portion of the first steel plate placed on the edge structure is 0.1 times of the length of the hole edge, and the length of the portion is not less than 22 times of the diameter of the hole edge structure steel bar.
Preferably, the thickness of the polymer waterproof mortar layer exceeds the original structural surface by 8-12 mm, and the side length of the polymer waterproof mortar layer exceeds the side length of the first steel plate by 90-110 mm respectively.
Preferably, the welding length of the first steel plate and the structural steel bars around the hole edge is 20 times the diameter of the structural steel bars around the hole edge.
Preferably, the steel axillary angles are distributed along the short sides of the steel plate, and are arranged at intervals of 0.4-0.6 m; two H-shaped steel rib plates positioned at the outermost side are respectively arranged on the steps.
Compared with the prior art, the invention has the following beneficial effects:
through the structure, the hole plugging prefabricated structure is convenient to produce, transport and stack, a large number of formwork supporting works are saved, construction conditions are improved, rigidity is high, self weight is light, bearing capacity and seepage prevention capacity of the hole plugging structure are improved, and crack development and damage of new and old and weak bonding surfaces are reduced.
Drawings
Fig. 1 is a schematic plan view of a structure according to the present invention.
Fig. 2 is a schematic cross-sectional view of a structure according to the present invention.
In the figure:
1-edge structure; 2-hole edge structural steel bars; 3-a first steel plate; 31-slotting; 4-a polymer waterproof mortar layer; 5-H-shaped steel rib plates; 6-steel armpit angle; 7-a second steel plate.
A, reinforcing steel bars of hole edge structures hidden in the edge structures; b is exposed hole edge structural steel bar.
The invention will now be further described with reference to the drawings and specific examples.
Detailed Description
The invention provides a hole plugging prefabricated structure, which comprises two steel plates and an H-shaped steel rib plate, wherein the two steel plates comprise a first steel plate and a second steel plate; the H-shaped steel rib plate is arranged between the two steel plates, and two side plates of the H-shaped steel rib plate are respectively connected with the two steel plates; the edge of the first steel plate protrudes out of the edge of the second steel plate, namely the orthographic projection area of the second steel plate is smaller than that of the first steel plate and is positioned in the orthographic projection of the first steel plate.
The steel plate is rectangular, and the H-shaped steel rib plate is welded with the steel plate in a full-welded mode. The H-shaped steel rib plate adopts Q235-B steel, and the model is Hhx x11x18. The welding thickness of the H-shaped steel rib plate and the steel plate is 8mm. The steel plate adopts Q235-B steel, the thickness of the steel plate is 20mm, ribs are arranged on the surface of the steel plate, and the thickness of the ribs is 5mm. The H-shaped steel rib plates are arranged along the length direction of the steel plate; two H-shaped steel rib plates positioned at the outermost sides are respectively arranged on the steps; the H-shaped steel rib plates are arranged at intervals of 1.0m along the long side direction of the steel plate.
The invention relates to a hole plugging structure, which comprises a hole plugging prefabricated structure; the wall of the hole, the structural steel bars at the edges of the hole, the polymer waterproof mortar layer and the steel armpit angle are also included.
The side wall is a two-stage step side wall, and the hole is divided into a narrow hole site and a wide hole site; the reinforcing steel bars of the hole edge surrounding structure at the top of the wide hole site are exposed, and the exposed part extends from the hole edge to the edge structure direction.
The hole plugging prefabricated structure is arranged at the wide hole site; the edge of the first steel plate is arranged on the edge structure of the hole, and grooves are respectively formed in the edge of the first steel plate; and the structural steel bars around the exposed hole edges of the wide holes are placed in the grooves and welded with the first steel plate. The welding length is 20 times of the diameter of the hole edge structural steel bar. The length of the exposed hole side structural steel bars positioned in the wide hole sites is 22 times of the diameter of the hole side structural steel bars. The length of the part of the first steel plate placed on the edge structure is 0.1 time of the length of the edge of the hole, and the part is not less than 22 times of the length of the diameter of the reinforcing steel bar of the hole edge structure. The second steel plate is supported on the step structure of the side wall of the second step, the width of the step is larger than 300mm, and the height is 1/3 of the thickness of the hole.
The steel armpit angle is arranged on the narrow hole site and is tightly attached to the side wall, one wing edge of the steel armpit angle is welded with the hole edge structural steel bar positioned on the narrow hole (the exposed end part of the hole edge structural steel bar is welded here), and the other wing edge is welded with the surface of the second steel plate. The steel axillary angle adopts Q235-B steel, the thickness is 20mm, the right triangle, the ratio of the short right angle side to the long right angle side is 1:2. the steel axillary angles are distributed along the short sides of the steel plate, and are arranged at intervals of 0.5 m.
The polymer waterproof mortar layer is arranged on the outer side surface of the first steel plate and extends to the edge structure of the hole, and covers the exposed structural steel bars around the edge of the hole. The thickness layer of the polymer waterproof mortar exceeds the original structural surface by 10mm, and is paved right above the steel plates, and the side lengths of the polymer waterproof mortar layer respectively exceed the side lengths of the first steel plates by 100mm. The construction of the hole plugging structure comprises the following steps: firstly, chiseling the periphery of the reserved hole into a step shape, wherein the step width is 300-400 mm, and the height is 1/3 of the hole thickness. According to the step-shaped hole size, a steel plate rear prefabricated structure is selected, H-shaped steel rib plates are welded with the steel plate in a full-welded mode, one layer is arranged at intervals of 1.0m along the long side direction of the steel plate, the upper steel plate and the lower steel plate are combined into a whole, and a hole forming hole prefabricated plugging structure is formed. And placing the hole prefabricated plugging structure in the step-shaped hole, and welding the first steel plate with structural steel bars around the hole edge. And welding the right triangle steel armpit angle with the steel bar of the narrow hole site and welding with the surface of the second steel plate. The steel axillary angles are distributed along the short sides of the steel plate, and are arranged at intervals of 0.5 m. And finally, paving polymer waterproof mortar right above the first steel plate, wherein the thickness of the polymer waterproof mortar exceeds the original structural surface. In the invention, as shown in the figure, the hole edge structure reinforcing steel bars are originally buried in the hole edge structure, and in order to realize the blocking, part of the hole edge structure reinforcing steel bars are exposed by chiseling out the concrete structure of part of the edge structure.
According to the hole plugging prefabricated structure, the thickness of the prefabricated structure is smaller than that of the original structure, the consumption of plugging materials is reduced, the rigidity is obviously enhanced through the combination of the steel plate and the rib plates, and the integral bending resistance is improved under the condition of reducing dead weight; steel armpit angles are arranged on the side walls of steps at two sides of the hole edge, so that the shearing resistance and the shearing resistance of the structure are enhanced; after the hole is plugged, a part of load is borne by the first steel plate, a part of load is transmitted to the second steel plate through the H-shaped steel rib plate by the upper steel plate and then transmitted to the hole step and the steel armpit angle, and the stress is effectively diffused, so that the stability of the structure is ensured. And polymer waterproof mortar is paved right above the first steel plate, so that crack development of a new and old joint surface caused by temperature change and other factors is prevented, and the seepage-proofing capacity after hole plugging is improved.
The present invention is not limited to the above-described embodiments, but it is intended that the present invention also includes modifications and variations if they fall within the scope of the claims and the equivalents thereof, if they do not depart from the spirit and scope of the present invention.
Claims (9)
1. The hole plugging structure is characterized by comprising a hole plugging prefabricated structure, wherein the hole plugging prefabricated structure comprises two steel plates and an H-shaped steel rib plate, and the two steel plates comprise a first steel plate and a second steel plate; the H-shaped steel rib plate is arranged between the two steel plates; the two side plates of the H-shaped steel rib plate are respectively connected with the two steel plates; the edge of the first steel plate protrudes out of the edge of the second steel plate;
the wall of the hole, the structural steel bars at the edge of the hole, the polymer waterproof mortar layer and the steel armpit angle are also included;
the side wall is a two-stage step side wall, and the hole is divided into a narrow hole site and a wide hole site; the reinforcing steel bars of the hole edge periphery at the top of the wide hole site are partially exposed, and the exposed part extends from the hole edge to the edge structure direction;
the hole plugging prefabricated structure is arranged at the wide hole site; the edge of the first steel plate is arranged on the edge structure of the hole, and grooves are respectively formed in the edge of the first steel plate; the structural steel bars around the exposed hole edges of the wide holes are placed in the grooves and welded with the first steel plate;
the steel armpit angle is arranged on the narrow hole site and is tightly attached to the side wall, one wing edge of the steel armpit angle is welded with structural steel bars around the hole edge of the narrow hole, and the other wing edge is welded with the surface of the second steel plate;
the polymer waterproof mortar layer is arranged on the outer side face of the first steel plate and extends to the edge structure of the hole, and covers the exposed structural steel bars around the edge of the hole.
2. The hole plugging structure of claim 1, wherein the steel plate is a rectangular steel plate, and the H-shaped steel rib plate is welded with the steel plate in a full-welded manner.
3. The hole plugging structure according to claim 1, wherein the thickness of the steel plate is 18-25 mm, ribs are arranged on the surface of the steel plate, and the thickness of the ribs is 4-8 mm; the welding thickness of the H-shaped steel rib plate and the steel plate is 7-10 mm.
4. The hole plugging structure of claim 1, wherein the H-shaped steel rib plates are arranged along a length direction of the steel plate; the H-shaped steel rib plates are arranged at intervals of 0.8-1.2 m along the long side direction of the steel plate.
5. The hole plugging structure of claim 1, wherein the exposed hole edge structural rebar at the wide hole site has a length that is 22 times the diameter of the hole edge structural rebar.
6. The hole plugging structure of claim 1, wherein a length of a portion of the first steel plate disposed on the edge structure is 0.1 times a length of an edge of the hole, and the portion is not less than 22 times a length of a diameter of the reinforcing bar of the edge structure of the hole.
7. The hole plugging structure according to claim 1, wherein the thickness of the polymer waterproof mortar layer exceeds the original structural surface by 8-12 mm, and the side length of the polymer waterproof mortar layer exceeds the side length of the first steel plate by 90-110 mm respectively.
8. The hole plugging structure of claim 1, wherein the welded length between the first steel plate and the structural bars around the hole edge is 20 times the diameter of the structural bars around the hole edge.
9. The hole plugging structure according to claim 1, wherein the steel axillary angles are distributed along the short sides of the steel plate and are arranged at intervals of 0.4-0.6 m; two H-shaped steel rib plates positioned at the outermost side are respectively arranged on the steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269624.1A CN108396985B (en) | 2018-03-29 | 2018-03-29 | Hole plugging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269624.1A CN108396985B (en) | 2018-03-29 | 2018-03-29 | Hole plugging structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108396985A CN108396985A (en) | 2018-08-14 |
| CN108396985B true CN108396985B (en) | 2023-11-24 |
Family
ID=63096831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810269624.1A Active CN108396985B (en) | 2018-03-29 | 2018-03-29 | Hole plugging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108396985B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914373A (en) * | 2021-11-24 | 2022-01-11 | 中建丝路建设投资有限公司 | Post-cast strip construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410173A (en) * | 2013-08-21 | 2013-11-27 | 天津二十冶建设有限公司 | Construction method for vertical post pouring belt plugging of underground structural outer wall |
| CN104141351A (en) * | 2014-05-16 | 2014-11-12 | 中国建筑第四工程局有限公司 | Sealing method for reserved paying-off hole and paying-off hole mold |
| CN205012372U (en) * | 2015-06-29 | 2016-02-03 | 中铁十四局集团有限公司 | Novel waterproof post -cast strip of side wall structure |
| CN107806114A (en) * | 2017-12-01 | 2018-03-16 | 杭州江润科技有限公司 | Basement roof closes late poured band structure and construction method in advance |
| CN207144538U (en) * | 2017-08-18 | 2018-03-27 | 中铁第四勘察设计院集团有限公司 | A kind of underground structure top board reserving hole temporary plugging structure |
| CN208792804U (en) * | 2018-03-29 | 2019-04-26 | 广州地铁设计研究院股份有限公司 | Holes blocking precast construction and holes blocking structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9765541B2 (en) * | 2012-05-22 | 2017-09-19 | Gerald R. Gray | Method and apparatus to fill and fire proof holes in concrete floors |
-
2018
- 2018-03-29 CN CN201810269624.1A patent/CN108396985B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410173A (en) * | 2013-08-21 | 2013-11-27 | 天津二十冶建设有限公司 | Construction method for vertical post pouring belt plugging of underground structural outer wall |
| CN104141351A (en) * | 2014-05-16 | 2014-11-12 | 中国建筑第四工程局有限公司 | Sealing method for reserved paying-off hole and paying-off hole mold |
| CN205012372U (en) * | 2015-06-29 | 2016-02-03 | 中铁十四局集团有限公司 | Novel waterproof post -cast strip of side wall structure |
| CN207144538U (en) * | 2017-08-18 | 2018-03-27 | 中铁第四勘察设计院集团有限公司 | A kind of underground structure top board reserving hole temporary plugging structure |
| CN107806114A (en) * | 2017-12-01 | 2018-03-16 | 杭州江润科技有限公司 | Basement roof closes late poured band structure and construction method in advance |
| CN208792804U (en) * | 2018-03-29 | 2019-04-26 | 广州地铁设计研究院股份有限公司 | Holes blocking precast construction and holes blocking structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108396985A (en) | 2018-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11384501B2 (en) | Method for sealing post-cast strip in foundation with no gap | |
| KR101178381B1 (en) | Steel-concrete hybrid column using square shaped steel pipe and manufacturing method thereof | |
| CN104863274B (en) | Building dilatation joint waterproof structure | |
| CN207419711U (en) | Steel plate shear force wall and the connection structure of steel bar girder floor plates | |
| CN101807785A (en) | Prefabricated assembled cable trench and installation method thereof | |
| CN108396985B (en) | Hole plugging structure | |
| CN209907429U (en) | Industrialized dense rib plate type retaining wall | |
| CN107724540A (en) | Steel plate shear force wall and the attachment structure and its construction method of steel bar girder floor plates | |
| CN103061357A (en) | Connection joint between basement base plate and underground diaphragm wall | |
| CN208632986U (en) | A kind of rectangular channel structure of precast assembly | |
| KR101303721B1 (en) | Headed rib precast slab and construction method therefor | |
| CN208792804U (en) | Holes blocking precast construction and holes blocking structure | |
| CN203452103U (en) | Waterstop | |
| CN205382595U (en) | Integral shear force wall of steel pipe concrete edge constraint coincide | |
| CN106638679B (en) | A kind of precast concrete pipe gallery connection method | |
| CN211922707U (en) | Special-shaped deformation joint template for bottom plate of underground comprehensive pipe gallery | |
| CN209907689U (en) | Prefabricated member of floor member unit assembly | |
| CN211548122U (en) | Cable trench expansion joint structure | |
| CN103397720A (en) | Steel tube shear wall for building | |
| CN203640375U (en) | Switching structure for different tower crane bases | |
| CN201639249U (en) | Prefabricated assembly type cable duct | |
| CN102296510B (en) | Load-carrying members layer and geo-grid and manufacture method | |
| CN110821021A (en) | Floor slab capable of being installed rapidly | |
| CN104631675A (en) | Double-face prefabricated superimposed plate | |
| CN218204892U (en) | Building structure convenient to drainage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 510010 No. 204 Huanshi West Road, Guangzhou City, Guangdong Province Applicant after: GUANGZHOU METRO DESIGN & RESEARCH INSTITUTE Co.,Ltd. Address before: 510010 No. 204 Huanshi West Road, Guangzhou City, Guangdong Province Applicant before: GUANGZHOU METRO DESIGN & RESEARCH INSTITUTE Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |