CN116607387A - Connecting structure of concrete lining plate and corrugated steel plate and construction method thereof - Google Patents
Connecting structure of concrete lining plate and corrugated steel plate and construction method thereof Download PDFInfo
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- CN116607387A CN116607387A CN202310472456.7A CN202310472456A CN116607387A CN 116607387 A CN116607387 A CN 116607387A CN 202310472456 A CN202310472456 A CN 202310472456A CN 116607387 A CN116607387 A CN 116607387A
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- concrete lining
- corrugated steel
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- 239000004567 concrete Substances 0.000 title claims abstract description 122
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 88
- 239000010959 steel Substances 0.000 title claims abstract description 88
- 238000010276 construction Methods 0.000 title claims abstract description 19
- 241001079814 Symphyotrichum pilosum Species 0.000 claims abstract description 39
- 235000004224 Typha angustifolia Nutrition 0.000 claims abstract description 39
- 241000587161 Gomphocarpus Species 0.000 claims abstract description 10
- 239000011376 self-consolidating concrete Substances 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 238000004873 anchoring Methods 0.000 abstract 1
- 238000005336 cracking Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a connecting structure of a concrete lining plate and a corrugated steel plate and a construction method thereof, wherein the connecting piece comprises a corrugated steel plate, the concrete lining plate and a curved groove flexible connecting piece for anchoring the corrugated steel plate in the concrete lining plate, the curved groove flexible connecting piece comprises a nail head and a nail rod, one end of the nail rod is vertically and fixedly connected with the corrugated steel plate, the other end of the nail rod is connected with the nail head, 1-n curved grooves are arranged on the wall of the nail rod along the axis of the rod, the curved grooves of the curved groove flexible connecting piece can be bent and deformed when the concrete lining plate is shrunk and deformed, and partial constraint between the concrete lining plate and the corrugated steel plate is released, so that the tensile stress of the concrete lining plate caused by shrinkage and creep is reduced, and the crack resistance of the concrete lining plate is enhanced.
Description
Technical Field
The invention relates to a connecting piece applied to a bridge with a combined structure and a construction method thereof, in particular to a connecting structure of a concrete lining plate and a corrugated steel plate and a construction method thereof, and belongs to the field of structural engineering.
Background
Near the support of the PC box girder bridge with the large-span corrugated steel web, lining concrete is arranged in the concrete section adjacent to the support to form a steel-concrete combined web in order to ensure that the stress transmission between the corrugated steel plate and the concrete web is uniform and prevent the corrugated steel plate from buckling. The section of the bridge support with the traditional corrugated steel web combined structure is generally connected with the corrugated steel plate and the concrete lining plate by adopting common pin connectors.
However, as the span of the continuous bridge of the corrugated steel web PC continuously increases, the bridge root beam height continuously increases, the constraint internal force between the lining concrete and the corrugated steel web is gradually increased due to shrinkage creep, the rigidity of common pin connectors is larger, the deformation is smaller, the cracking of the lining concrete slab is easy to occur, the combined effect of the corrugated steel plate and the concrete lining plate formed by the common pin connectors is very unfavorable for the structure near the support, and the cracking resistance design of the bridge of the combined structure is one of the problems, namely, the cracking of the concrete lining plate at the support can cause serious durability problems under the action of long-term tensile stress due to the non-cooperative deformation of the common pin connectors and the corrugated steel plate. In the traditional design, measures such as changing the concrete mixing ratio, adding steel fibers or increasing prestress are often adopted, but the construction cost is increased, the construction process is complex, and the construction quality is uncontrollable.
Disclosure of Invention
The technical purpose is that: aiming at the technical problems, the invention provides the corrugated steel plate-concrete lining plate combined structure and the construction method thereof, which are characterized in that compared with the traditional combined web plate, the corrugated steel plate-concrete lining plate combined structure effectively reduces the tensile stress of the concrete lining plate, enhances the crack resistance of the concrete lining plate, and has the advantages of simple field construction method and reliable construction quality.
In order to achieve the technical purpose, the invention adopts the following technical means:
the utility model provides a concrete lining board and waveform steel sheet connection structure, includes waveform steel sheet, concrete lining board and will the waveform steel sheet anchor is in the curved surface recess flexonics spare in the concrete lining board, curved surface recess flexonics spare includes pin fin and nail pole, nail pole one end perpendicular fixed connection in the waveform steel sheet, the other end with pin fin connection, be equipped with 1 ~ n curved surface recesses along the pole axis on pole wall of nail pole (12), curved surface recess flexonics spare curved surface recess can take place bending deformation when the shrinkage creep takes place for the concrete lining board, release the partial constraint between concrete lining board and the waveform steel sheet to reduce the tensile stress that concrete lining board produced because of the shrinkage creep, strengthen the crack resistance of concrete lining board.
The curved surface groove is formed by a machining mode.
Diameter d of the nail rod 0 Length l 0 Is determined according to the displacement value x of the shrinkage creep of the concrete lining plate,
when x is<At 1mm, d 0 ＝10mm，l 0 ＝50mm～100mm；
When x is more than or equal to 1mm and less than or equal to 5mm, d 0 ＝10+2[x]mm，l 0 ＝100mm～150mm；
When 5mm<When x is d 0 ＝10+3[x]mm≤30mm，l 0 ＝150mm～300mm。
According to the diameter d of the nail shank 0 The number n of curved grooves on the nail rod is designed, wherein,
when x <1mm, n=1;
when x is more than or equal to 1mm and less than or equal to 5mm, n= [ (x-1)/2 ] +1;
when 5mm < x, n=4;
diameter d of section at minimum of single curved surface groove 1 Diameter d of the nail shank 0 4/5-1/2 of the projection length l of the single curved surface groove along the nail rod 1 Is the total length l of the nail rod 0 1/9 to 1/2 of the total weight of the product;
the curved surface groove is in the shape of an arc curved surface, a parabolic curved surface or other curved surfaces.
The nail rod material is steel with low yield point and the yield strength f y In the range of 205-245 Mpa, the tensile strength f u The range is 300-400 MPa, and the extensibility delta is more than or equal to 40 percent.
The concrete lining plate comprises a longitudinal reinforcing steel bar net, a transverse reinforcing steel bar net and self-compacting concrete, and is anchored on the side face of the corrugated steel plate through a plurality of uniformly distributed nail heads.
One end of the nail rod is vertically welded to the corrugated steel plate.
The invention further discloses a construction method based on the connection structure of the concrete lining plate and the corrugated steel plate, which comprises the following steps:
s1, designing the diameter d of a nail rod according to a calculated value of displacement x generated by shrinkage and creep of a concrete lining plate at a pier 0 Length of shank l 0 And the number n of the curved surface grooves, and the cross section diameter d of the smallest part of the curved surface grooves 1 Projection length l of single curved surface groove along nail rod 1 ；
S2, forming 1-n curved surface grooves on the nail rod in a machining mode in a factory, wherein n=1, 2,3 and 4;
s3, distributing the processed nail rods according to the stress condition of the concrete lining plate, and vertically welding the bottom ends of the nail rods to the side surfaces of the corrugated steel plates;
s4, installing the corrugated steel plate at the bridge pier position, and binding a longitudinal and transverse reinforcing steel bar net of the concrete lining plate;
s5, supporting the mould and pouring self-compacting concrete of the concrete lining plate to enable the reinforcing mesh and the nail rod to be connected into a whole and stressed together;
s6, after maintenance, bending deformation is generated at the curved surface groove of the nail rod under the action of shrinkage and creep of the concrete lining plate, so that certain relative sliding occurs between the contact interface of the corrugated steel plate and the concrete lining plate, the tensile stress received by the concrete lining plate is reduced, and the crack resistance and durability of the concrete lining plate are enhanced;
in addition, the corrugated steel plate is anchored in the concrete lining plate by the nail head of the flexible connecting piece, so that the corrugated steel plate is prevented from being separated from the concrete lining plate, the combined action between the steel plate and the concrete is exerted, the lifting force generated when the concrete lining plate is pressed is resisted, and the two materials are ensured to work together.
The beneficial effects are that:
(1) According to the invention, the curved surface groove is processed on the rod wall of the nail rod along the axial direction, so that 1-n sections of bendable transition sections are formed, the self rigidity is reduced, under the action of shrinkage creep of the concrete lining plate, the curved surface groove of the nail rod can be subjected to bending deformation, so that relative sliding can occur between the contact interface of the corrugated steel plate and the concrete lining plate, partial constraint between the corrugated steel plate and the concrete is released, the concrete lining plate is prevented from generating larger tensile stress due to non-cooperative deformation with the corrugated steel plate, the number and width of cracks of the concrete lining plate at the interface are not reduced greatly, and the durability of the concrete lining plate is improved.
(2) The corrugated steel plate is anchored in the concrete lining plate by the nail head of the nail rod, and the combined action between the corrugated steel plate and the concrete can be realized when the pressure acts by using the nail rod of the invention in a combined beam bridge, so that the concrete lining plate is not lifted, and the rigidity and the bearing capacity of the structure are improved. The connecting piece has the anti-pulling effect similar to the traditional pin connecting piece, and can prevent the separation of the concrete lining plate and the corrugated steel plate.
(3) Compared with the traditional pin connecting piece, the connecting piece is simple in structure and convenient and fast in processing method, and only 1-n curved surface grooves are required to be machined on the pin rod, so that the process is simple and the construction speed is high.
Drawings
FIG. 1 is a schematic cross-sectional view of a corrugated steel web-concrete lining board composite structure box girder using curved surface groove flexible connectors;
FIG. 2 is a schematic view showing a structure of a corrugated steel plate-concrete lining plate combination according to the present invention;
FIG. 3 is a schematic view of a curved groove flexible connector of the present invention welded perpendicularly to a corrugated steel plate;
FIG. 4 is a schematic view of a cross-directional rebar grid and self-compacting concrete in a concrete lining panel of the present invention;
FIG. 5 is a schematic view showing a deformation of a corrugated steel plate-concrete lining plate combination structure according to an embodiment of the present invention;
FIG. 6 is a schematic diagram showing the deformation of the corrugated steel plate-concrete lining plate combination structure based on the conventional pin connector
Fig. 7 is a flowchart of a construction method of a corrugated steel plate-concrete lining plate combined structure according to an embodiment of the present invention.
Reference numerals illustrate: 1-a curved groove flexible connector; 11-nail head; 12-nailing the pole; 121-curved grooves; 2-a corrugated steel plate; 3-concrete lining board; 31-a longitudinal and transverse reinforcement mesh; 32-self-compacting concrete.
Detailed Description
Embodiments of the present invention will hereinafter be described in conjunction with the appended drawings, wherein like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described by referring to the drawings are exemplary and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The following describes a corrugated steel plate-concrete lining plate combined structure and a construction method thereof according to an embodiment of the present invention with reference to the accompanying drawings.
FIG. 1 is a schematic cross-sectional view of a corrugated steel web-concrete lining board composite structure box girder using curved surface groove flexible connectors.
As shown in fig. 2, the curved groove flexible connector 1 includes: the nail head 11, the nail shank 12, and 1 to n curved surface grooves 121 formed by machining the nail shank 12 in the axial direction.
The curved surface groove is in the shape of an arc curved surface, a parabolic curved surface or other curved surface, and the number of the curved surface grooves is 1-n, and n=1, 2,3 and 4.
The shape, the position and the number of the curved surfaces are according to the concrete lining boardAnd the shrinkage creep displacement calculated value is analyzed and determined, and the surface of the curved surface groove is carefully smooth, so that the defects of cracks, stress concentration and the like are avoided. Specifically, in this embodiment, the diameter d of the shank 0 Length l 0 Is determined according to the displacement value x of the shrinkage creep of the concrete lining plate,
when x is<At 1mm, d 0 ＝10mm，l 0 ＝50mm～100mm；
When x is more than or equal to 1mm and less than or equal to 5mm, d 0 ＝10+2[x]mm，l 0 ＝100mm～150mm；
When 5mm<When x is d 0 ＝10+3[x]mm≤30mm，l 0 ＝150mm～300mm。
According to the diameter d of the nail shank 0 The number n of curved grooves on the nail rod is designed, wherein,
when x <1mm, n=1;
when x is more than or equal to 1mm and less than or equal to 5mm, n= [ (x-1)/2 ] +1;
when 5mm < x, n=4;
diameter d of section at minimum of single curved surface groove 1 Diameter d of the nail shank 0 4/5-1/2 of the projection length l of the single curved surface groove along the nail rod 1 Is the total length l of the nail rod 0 1/9 to 1/2 of the total weight of the product;
the curved surface groove is in the shape of an arc curved surface, a parabolic curved surface or other curved surfaces.
Further, the shank material is a low yield point steel, in this embodiment, a yield strength f is used y In the range of 205-245 Mpa, the tensile strength f u The range is 300-400 MPa, and the extensibility delta is more than or equal to 40 percent.
Further, as shown in fig. 3 and fig. 4, the curved groove flexible connection member 1 is dynamically adjusted according to the displacement generated by shrinkage and creep of the concrete lining plate 2, the number of curved grooves needs to be increased at the position of large deformation, the ratio of the diameters of the groove sections to the nail rod sections is reduced, namely, the rigidity of the connection member is reduced, the flexibility is increased, the number of curved grooves is relatively reduced at the position of small deformation, the diameter ratio is increased, namely, the rigidity of the connection member is increased, and the flexibility is weakened.
The corrugated steel plate 2 is vertically welded with the bottom end of the nail rod 12, and the nail head 11 anchors the corrugated steel plate 2 in the concrete lining plate 3.
Fig. 5 shows a concrete lining board, in one embodiment of the invention, the concrete lining board 3 comprises a longitudinal and transverse reinforcement mesh 31 and self-compacting concrete 32.
After the curved surface groove flexible connecting piece 1 is welded on the inner side surface of the corrugated steel plate 2, the corrugated steel plate 2 is transported to a construction site, and after the corrugated steel plate 2 is installed at the bridge pier top position, the longitudinal and transverse reinforcing steel bar meshes 31 of the concrete lining plate 3 are bound, self-compacting concrete 32 is poured and maintained, and the construction of the corrugated steel plate-concrete lining plate combined structure is completed.
Fig. 6 is a schematic view showing a deformation of a corrugated steel plate-concrete lining board combination structure according to an embodiment of the present invention, when the concrete lining board 3 is deformed by shrinkage; the curved surface groove flexible connecting piece 1 can be bent and deformed at the groove, so that the constraint between the concrete lining plate 3 and the corrugated steel plate is released, the tensile force suffered by the concrete is greatly increased in the future, the generation of cracks is avoided, and the cracking resistance of the concrete lining plate is effectively improved.
Fig. 7 is a schematic diagram showing the deformation of a corrugated steel plate-concrete lining plate combination structure based on a conventional pin connecting piece, and the shrinkage creep deformation cannot be released because the concrete lining plate is firmly restrained by a pin, so that the lining plate is subjected to a tensile force, and a tension crack appears on the surface to influence the durability of the structure.
It can be appreciated that the corrugated steel plate-concrete lining plate combined structure is suitable for being used between the interface of the corrugated steel plate and the concrete lining plate near the support of the bridge with the corrugated steel web combined structure, wherein the curved surface groove flexible connecting piece is also beneficial to improving the cracking resistance of the concrete top plate in the hogging moment area of the bridge with the traditional steel-concrete combined structure.
In summary, the curved surface groove flexible connecting piece 1 of the embodiment of the invention consists of the nail head 11 and the nail rod 12, wherein 1-n curved surface grooves 121 on the nail rod 12 are formed by machining, have weaker lateral stiffness and good flexibility, and are large in lateral stiffness and weak in deformation capability compared with the traditional pin connecting piece in the bridge with the conventional steel-concrete combined structure.
A construction method of a corrugated steel plate-concrete lining plate combined structure according to an embodiment of the present invention is described with reference to fig. 7, including the steps of:
s1, designing the number and positions of curved surface grooves 121 on a pin rod 12, the lengths and depths of the grooves according to the size of a concrete lining plate at a bridge pier and displacement calculated values generated by shrinkage creep;
s2, forming 1-n curved surface grooves 121 on the nail rod 12 in a machining mode in a factory, wherein the nail rod 12 has good cold machining performance;
s3, distributing the processed flexible connecting pieces 1 with the plurality of curved surface grooves according to the stress distribution condition of the concrete lining plate 3, and vertically welding the bottom ends of the nail rods 12 on the side surfaces of the corrugated steel plates 2;
s4, installing the corrugated steel plate 2 at the bridge pier position, and binding longitudinal and transverse reinforcing steel bars 31 of the concrete lining plate 3;
s5, supporting a mould and pouring self-compacting concrete 32 of the concrete lining plate 3 to enable the longitudinal and transverse reinforcing steel bar net 31 and the curved surface groove flexible connecting piece 1 to be connected into a whole and stressed together;
s6, after reasonable maintenance, the constraint between the concrete lining plate 3 and the corrugated steel plate 2 caused by shrinkage and creep is released, the number and the width of cracks of the concrete lining plate 3 are greatly reduced compared with those of the traditional pin lining plate, and the durability of the concrete lining plate is improved.
Claims (8)
1. The utility model provides a concrete lining board and wave form steel sheet connection structure, its characterized in that includes wave form steel sheet, concrete lining board and will wave form steel sheet anchor is in curved surface recess flexonics spare (1) in the concrete lining board, curved surface recess flexonics spare (1) include pin fin (11) and nail pole (12), nail pole (12) one end perpendicular fixed connection in wave form steel sheet (2), the other end with pin fin (11) are connected, be equipped with 1 ~ n curved surface recess (121) along the pole axis on the pole wall of nail pole (12), curved surface recess (121) of curved surface recess flexonics spare are in can take place bending deformation when concrete lining board (3) take place shrink creep, release the part constraint between concrete lining board (3) and the wave form steel sheet (2) to reduce concrete lining board (3) because of shrink the tensile stress that creep produced, reinforcing concrete lining board's crack resistance.
2. The concrete lining board and corrugated steel plate connecting structure according to claim 1, wherein the curved surface groove (121) is formed by machining.
3. The concrete lining board and corrugated steel plate connecting structure according to claim 1, characterized in that the diameter d of the nail rod (12) 0 Length l 0 Is determined according to the displacement value x of the shrinkage creep of the concrete lining plate,
when x is<At 1mm, d 0 ＝10mm，l 0 ＝50mm～100mm；
When x is more than or equal to 1mm and less than or equal to 5mm, d 0 ＝10+2[x]mm，l 0 ＝100mm～150mm；
When 5mm<In the case of x, the number of the X-ray tube,l 0 ＝150mm～300mm。
4. a concrete lining board and corrugated steel plate connecting structure according to claim 3, characterized in that according to the diameter d of the nail rod (12) 0 The number n of curved grooves (121) on the pin (12) is designed, wherein,
when x <1mm, n=1;
when x is more than or equal to 1mm and less than or equal to 5mm, n= [ (x-1)/2 ] +1;
when 5mm < x, n=4;
diameter d of section at minimum of single curved surface groove 1 Diameter d of the nail shank 0 4/5-1/2 of the projected length l of the single curved groove along the nail rod (12) 1 Is the total length l of the nail rod 0 1/9 to 1/2 of the total weight of the product;
the curved surface groove (121) is in the shape of an arc curved surface, a parabolic curved surface or other curved surfaces.
5. The concrete lining board and corrugated steel plate connecting structure according to claim 1, characterized in that the nail rod (12) material is a low yield point steel material with yield strength f y Tensile strength in the range of 205-245 MpaStrength f u The range is 300-400 MPa, and the extensibility delta is more than or equal to 40 percent.
6. The concrete lining board and corrugated steel plate connecting structure according to claim 1, characterized in that the concrete lining board (3) comprises longitudinal and transverse reinforcement meshes (31) and self-compacting concrete (32), and the concrete lining board (3) is anchored on the side surface of the corrugated steel plate (2) through a plurality of evenly distributed nail heads (11).
7. The concrete lining board and corrugated steel plate connecting structure according to claim 1, characterized in that one end of the nail rod (11) is welded to the corrugated steel plate (2) vertically.
8. The construction method based on the connecting structure of the concrete lining board and the corrugated steel plate as claimed in any one of claims 1 to 7, characterized by comprising the following steps:
s1, designing the diameter d of a nail rod (12) according to a calculated value of displacement x generated by shrinkage and creep of a concrete lining plate at a bridge pier 0 Length of shank l 0 And the number n of curved grooves (121), the cross-sectional diameter d of the smallest part of the curved grooves 1 Projection length l of single curved surface groove along nail rod (12) 1 ；
S2, forming 1-n curved surface grooves (121) on the nail rod (12) in a mechanical processing mode in a factory, wherein n=1, 2,3 and 4;
s3, distributing the processed nail rods (12) according to the stress condition of the concrete lining plate (3), and vertically welding the bottom ends of the nail rods (12) on the side surfaces of the corrugated steel plates (2);
s4, installing the corrugated steel plate (2) at the bridge pier position, and binding a longitudinal and transverse reinforcing steel bar net (31) of the concrete lining plate (3);
s5, supporting a mould and pouring self-compacting concrete (32) of the concrete lining plate (3), so that the reinforcing mesh (31) and the nail rod (12) are connected into a whole to bear force together;
s6, after maintenance, under the action of shrinkage and creep of the concrete lining plate (3), bending deformation is generated at the curved surface groove (121) of the nail rod (12), so that certain relative sliding occurs between the contact interface of the corrugated steel plate (2) and the concrete lining plate (3), the tensile stress received by the concrete lining plate (3) is reduced, and the crack resistance and durability of the concrete lining plate are enhanced;
in addition, the corrugated steel plate (2) is anchored in the concrete lining plate (3) by the nail head (11) of the flexible connecting piece, separation between the corrugated steel plate and the concrete lining plate is prevented, the combined action between the steel plate and the concrete is exerted, lifting force generated when the concrete lining plate (3) is pressed is resisted, and the two materials are guaranteed to work together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310472456.7A CN116607387A (en) | 2023-04-27 | 2023-04-27 | Connecting structure of concrete lining plate and corrugated steel plate and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310472456.7A CN116607387A (en) | 2023-04-27 | 2023-04-27 | Connecting structure of concrete lining plate and corrugated steel plate and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN116607387A true CN116607387A (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310472456.7A Pending CN116607387A (en) | 2023-04-27 | 2023-04-27 | Connecting structure of concrete lining plate and corrugated steel plate and construction method thereof |
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| Country | Link |
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| CN (1) | CN116607387A (en) |
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- 2023-04-27 CN CN202310472456.7A patent/CN116607387A/en active Pending
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