CN115928893A - Modular connecting structure and method for penetration piece and concrete wall of nuclear power plant - Google Patents
Modular connecting structure and method for penetration piece and concrete wall of nuclear power plant Download PDFInfo
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- CN115928893A CN115928893A CN202310094530.6A CN202310094530A CN115928893A CN 115928893 A CN115928893 A CN 115928893A CN 202310094530 A CN202310094530 A CN 202310094530A CN 115928893 A CN115928893 A CN 115928893A
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- 239000004567 concrete Substances 0.000 title claims abstract description 55
- 230000035515 penetration Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 230000000149 penetrating effect Effects 0.000 claims abstract description 22
- 238000004873 anchoring Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 10
- 230000003014 reinforcing effect Effects 0.000 abstract description 7
- 238000005452 bending Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 7
- 239000011150 reinforced concrete Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000003351 stiffener Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- 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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a modular connecting structure and a method for a penetration piece and a concrete wall of a nuclear power plant, relating to the technical field of nuclear power plant structural engineering, and adopting the following concrete scheme: a modularized connecting structure of a penetration piece and a concrete wall of a nuclear power plant comprises a box-shaped frame body, wherein the inner side of the box-shaped frame body is fixedly connected with a connecting plate on the circumferential side of the penetration piece; the outer side of the box-type frame body is uniformly provided with profile steel shear keys, a plurality of first studs are arranged on the profile steel shear keys, sleeves and second studs are arranged between every two adjacent profile steel shear keys in a staggered mode, the sleeves are used for connecting reinforcing steel bars, and the profile steel shear keys and the box-type frame body are used for forming a steel-concrete combined member with a concrete wall to bear the stress of a penetrating piece; this connection structure can effectively reduce reinforcing bar quantity, avoids the reinforcing bar to pass closely and with the collision scheduling problem of other components, the construction of being convenient for guarantees concrete placement quality.
Description
Technical Field
The invention relates to the technical field of nuclear power plant structural engineering, in particular to a modular connecting structure and a method for a nuclear power plant penetration piece and a concrete wall.
Background
The penetrating piece is a device for fixing the pipeline penetrating through the wall to the wall, is a component of the pipeline, and is a channel for accommodating a process medium, and importantly, the effective isolation of the medium from the outside is ensured, and the radioactive leakage among different rooms or environments is avoided.
At present, a large-scale penetration piece area of a nuclear power plant generally adopts a locally thickened wall body, and a large number of annular, vertical and horizontal reinforcing steel bars and other modes are arranged on the periphery side of the penetration piece to ensure the stress performance of the connection area. The mode causes the steel bars to be too dense, the binding and the arrangement of the steel bars are difficult, the using amount of the steel bars is large, the construction progress is slow, meanwhile, the bending resistance, the shearing resistance and the anti-shearing resistance of the connecting part are poor, and the pouring quality of the concrete cannot be guaranteed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a modularized connecting structure of a penetration piece and a concrete wall in a nuclear power plant, wherein a profile steel member and the reinforced concrete wall form a steel-concrete combined member by means of studs, profile steel shear keys and sleeves, so that the bending resistance, the shearing resistance and the anti-cutting resistance of a connecting part are effectively improved, the thickness of the concrete wall can be reduced, the number of additional reinforcing steel bars on the periphery of the penetration piece is reduced, the problems of over-dense reinforcing steel bars, collision with other members and the like are avoided, and the pouring quality of concrete is ensured.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the modular connection structure comprises a box-type frame body, wherein the inner side of the box-type frame body is used for being fixedly connected with a connection plate on the peripheral side of a penetrating piece; the profile steel shear keys are uniformly arranged on the outer side of the box-type frame body, a plurality of first studs are arranged on the profile steel shear keys, sleeves and second studs are arranged between every two adjacent profile steel shear keys in a staggered mode, the sleeves are used for connecting reinforcing steel bars, and the profile steel shear keys and the box-type frame body are used for forming a steel-concrete combined member with a concrete wall to bear the stress of a penetrating piece.
As a further implementation mode, the box-type frame body is square, the box-type frame body comprises a box-type outer frame and a box-type inner frame, and the box-type outer frame and the box-type inner frame are fixedly connected through stiffening plates.
As a further implementation, the stiffener plates include a transverse stiffener plate and a longitudinal stiffener plate;
the transverse stiffening plates and the longitudinal stiffening plates are vertically and alternately arranged, and two ends of each stiffening plate are respectively connected with the box-type outer frame and the box-type inner frame.
As a further implementation, the connecting plate is used for being fixed on the periphery of the penetrating piece, the connecting plate comprises a plurality of annular connecting plates and radial connecting plates, and two ends of the connecting plate are respectively connected with the box-shaped inner frame and the penetrating piece.
As a further implementation, the circumferential connecting plates and the radial connecting plates are connected perpendicularly and in a staggered manner.
As a further implementation mode, the section steel shear keys are perpendicular to the outer side face of the box-type outer frame, and the first studs are perpendicular to the section steel shear keys.
As a further implementation, the second stud is perpendicular to the box-type outer frame, and the sleeve is used for connecting the horizontal steel bars and the longitudinal steel bars.
As a further implementation mode, the two sides of the corner of the box-shaped frame body are provided with anchoring plates, and the anchoring plates are connected through opposite-pulling steel pieces.
In a second aspect, a method for connecting a power plant penetration piece and a concrete wall adopts a structure for connecting a power plant penetration piece and a concrete wall, which includes the following steps:
manufacturing a box-type frame body, installing a profile steel shear key, a sleeve and a second stud outside the box-type frame body, and installing an anchoring plate and a counter-pulling steel piece at the corner of the box-type outer frame;
the outer wall of the pipeline of the penetration piece is provided with a radial connecting plate and a circumferential connecting plate, and then the radial connecting plate and the circumferential connecting plate are spliced and connected with the box-type inner frame;
hoisting the whole connecting structure in place, and arranging a temporary support;
and arranging horizontal steel bars and vertical steel bars, and pouring concrete.
As a further implementation, the horizontal steel bars and the vertical steel bars are connected with the sleeve, and then the peripheral wall steel bars are arranged and concrete is poured.
The beneficial effects of the invention are as follows:
1. the invention connects the outer wall of the pipeline of the penetration piece through the box-type frame body, and forms the steel-concrete combined member by the profile steel member and the reinforced concrete wall through the studs, the profile steel shear keys and the sleeves, thereby effectively improving the bending resistance, the shear resistance and the anti-cutting resistance of the connecting part, reducing the thickness of the concrete wall and reducing the number of additional reinforcing steel bars on the periphery of the penetration piece.
2. The connecting structure can effectively reduce the quantity of the steel bars, avoid the problems of over-dense steel bars, collision with other components and the like, facilitate construction and ensure the concrete pouring quality.
3. The connecting structure can meet the stress requirement of the large-scale penetrating piece part, is convenient for modular manufacturing, avoids over-dense and collision of reinforcing steel bars, is beneficial to concrete pouring, is convenient for construction, and shortens the construction period.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is an elevation view of a connection structure of a large-scale penetration assembly of a nuclear power plant and a concrete wall according to an embodiment of the present invention.
FIG. 2 isbase:Sub>A schematic diagram of the structure A-A in FIG. 1.
FIG. 3 is a schematic view of the structure B-B in FIG. 1.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 1. the steel pipe comprises a box-type frame body, 2. Sleeves, 3. Studs, 4. Section steel shear keys, 5. Counter-pulling steel pieces, 6. Anchoring plates, 7. Horizontal steel bars, 8. Longitudinal steel bars, 9. Radial connecting plates, 10. Circumferential connecting plates, 11. Transverse stiffening plates, 12. Longitudinal stiffening plates and 13. Outer walls of penetrating piece pipelines.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
Example one
In a typical embodiment of the invention, referring to fig. 1-3, a modular connection structure of a nuclear power plant penetration piece and a concrete wall comprises a box-type frame body 1, wherein the inner side of the box-type frame body 1 is used for being fixedly connected with a connecting plate on the peripheral side of the penetration piece pipeline outer wall 13, and the outer side of the box-type frame body 1 is used for pouring concrete.
Referring to fig. 1 to 3, the box-type frame body 1 is square, the box-type frame body 1 includes a box-type outer frame and a box-type inner frame, a set distance is provided between the box-type outer frame and the box-type inner frame, and the box-type outer frame and the box-type inner frame are fixedly connected through a stiffener.
Wherein the stiffening plates comprise transverse stiffening plates 11 and longitudinal stiffening plates 12; the transverse stiffening plates 11 and the longitudinal stiffening plates 12 are vertically and staggered, the transverse stiffening plates 11 and the longitudinal stiffening plates 12 are sequentially fixedly welded, and the two ends of each of the transverse stiffening plates 11 and the longitudinal stiffening plates 12 are respectively fixedly welded with the box-type outer frame and the box-type inner frame to connect the box-type outer frame and the box-type inner frame into a whole. The transverse stiffening plates 11 are arranged along the width direction of the box-type frame body 1, the longitudinal stiffening plates 12 and the box-type frame body 1 are positioned on the same plane, and the longitudinal stiffening plates 12 are arranged between the box-type outer frame and the box-type inner frame.
The box-type outer frame is connected with the box-type inner frame through the stiffening plates, so that the combined action of the box-type member inner frame and the outer frame is ensured, and the rigidity of the stiffening plate steel plate is ensured.
The 1 outside of box framework evenly sets up shaped steel shear key 4, sets up a plurality of pegs 3 on the shaped steel shear key 4, and crisscross sleeve 2 and peg 3 that set up between two adjacent shaped steel shear keys 4.
The profile steel shear keys 4 of the embodiment are fixedly welded on the outer side face of the box-type outer frame, as shown in fig. 1, the box-type outer frame is provided with four outer side faces, three profile steel shear keys 4 are uniformly arranged on each outer side face, the profile steel shear keys 4 are vertically arranged with the side face of the box-type outer frame, and the profile steel shear keys 4 have set lengths.
The arrangement of the profile steel shear keys 4 can improve the anti-cutting capability of the penetrating piece part, and the bending resistance and the torsion resistance of the wall body are improved under the combined action of the profile steel shear keys and the reinforced concrete wall.
Set up four first pegs on shaped steel shear key 4, two liang of a set of first pegs, two sets of first pegs welding and shaped steel shear key 4 both sides, first peg sets up with shaped steel shear key 4 is perpendicular.
And a second stud and the sleeve 2 are welded between two adjacent steel shear keys on the outer side surface of the box-type outer frame in a staggered manner. Sleeve 2 is used for the connecting reinforcement, considers the width of box frame, and the second peg and the sleeve 2 that this embodiment set up four groups on each box frame lateral surface, are two sets of between two shaped steel shear key 4, and two sets of second pegs and sleeve 2 are along box frame width direction equipartition. Each set includes three second pegs and three sleeves.
The second stud is perpendicular to box frame, sleeve 2 is used for connecting horizontal reinforcing bar 7 and the one end of longitudinal reinforcement 8, and sleeve 2 is for welding mechanical connection sleeve.
The second stud is arranged on the outer side face of the box-type outer frame and used for reinforcing the combined action of the concrete and the steel member; the studs 3 (first studs) are arranged on the shear keys of the section steel to ensure the combined action of the section steel and the concrete wall to form a section steel-concrete member. The arrangement of the first peg and the second peg can improve the cooperative working capability between concrete and a steel member after the concrete is poured and hardened.
The section steel shear key 4, the box-type frame 1, and the stud 3 and the sleeve 2 on the frame are used for forming a steel-concrete combined member with a concrete wall to bear the stress of a penetrating piece.
The connecting plate is arranged on the periphery of the outer wall 13 of the penetrating piece pipeline and fixed on the periphery of the outer wall of the penetrating piece pipeline, as shown in figure 1, the connecting plate comprises a plurality of annular connecting plates 10 and radial connecting plates 9, and two ends of the connecting plate are respectively welded with the box-shaped inner frame and the outer wall 13 of the penetrating piece pipeline.
The annular connecting plates 10 and the radial connecting plates 9 are vertically and alternately connected, and the annular connecting plates 10 and the radial connecting plates 9 are sequentially welded. The annular connecting plate 10 and the box-type frame body 1 are located on the same plane, the radial connecting plate 9 is arranged along the width direction of the box-type frame body, and the annular connecting plate 10 is located in the middle of the width direction of the box-type frame body.
The inner side of the annular connecting plate 10 is matched with the outer side of the outer wall 13 of the pipeline of the penetrating piece in shape, and the outer side of the annular connecting plate is matched with the inner side of the box-shaped inner frame in shape, so that the annular connecting plate is convenient to connect.
The radial connecting plate 9 and the annular connecting plate 10 are arranged on the outer wall 13 of the pipeline of the penetration piece and can be connected by welding or high-strength bolts, so that the torsion resistance, shear resistance and bending rigidity of the outside of the penetration piece are ensured, and the axial force, the shear force, the bending moment and the torque of the penetration piece are reliably transmitted to the box-type frame body 1.
In order to overcome the stress influence of the corners of the box-type frame body 1, two sides of the four corners of the box-type frame body 1 are provided with anchoring plates 6, the anchoring plates 6 extend out of the box-type frame body 1, and the anchoring plates 6 are connected through opposite-pulling steel pieces 5. The anchor plate 6 and the setting of drawing steel 5 can improve 1 bight reinforced concrete wall bearing capacity of box framework, reduce the influence of bight stress concentration.
The pull rod piece 5 can be made of counter-pulling steel bars or round steel bars, and is used for reinforcing corners of the box-type frame body 1 and weakening the adverse effect of corner stress concentration.
This embodiment is being connected penetrating member pipeline outer wall 13 and box framework 1 through the connecting plate to set up shaped steel shear key 4, peg 3 and sleeve 2 after, accomplished the modularization construction to connection structure, the efficiency of construction is high, easy operation.
In the actual engineering design, the steel-concrete combined member can be formed by the profile steel shear key 4, the box-type frame body 1 and the reinforced concrete wall, and the steel-concrete combined member commonly bears the axial force, the shearing force, the bending moment and the torque of the penetrating piece, so that the thickness of the wall body is reduced, and the amount of reinforcing steel bars attached to the periphery of the penetrating piece is reduced.
During actual construction, the connecting structure is integrally hoisted in place and is provided with a temporary support, the field welding amount is reduced, and the welding quality is ensured during factory manufacture.
Connect wall body horizontal reinforcement 7 and vertical reinforcement 8 with can weld mechanical connecting sleeve 2, arrange peripheral wall body reinforcing bar side by side, avoid appearing the reinforcing bar interval undersize and with the collision scheduling problem of other components, guarantee concrete placement, the quality of vibrating.
Example two
A method for connecting a nuclear power plant penetration piece and a concrete wall adopts a modular connecting structure of the nuclear power plant penetration piece and the concrete wall, and comprises the following steps:
the working condition I is as follows: a steel plate or a steel section is processed into a box-shaped frame 1 as shown in fig. 1, 2, and 3, and a horizontal stiffening plate 11 and a vertical stiffening plate 12 are provided inside the steel section.
Working conditions are as follows: outside the box-type frame 1, a stud 3 (second stud), a sleeve 2, a profile steel shear key 4, and the like are attached, and the stud 3 (first stud) is welded to the profile steel shear key 4.
Working conditions are as follows: and anchor plates 6 and opposite-pulling reinforcing steel bars or round steel bars are arranged on two sides of the corner of the box-type frame body 1.
Working conditions are as follows: and welding a radial connecting plate 9 and a circumferential connecting plate 10 on the outer wall 13 of the through piece pipeline.
Working condition five: and assembling, welding and connecting the outer wall 13 of the pipeline of the penetration piece, the radial connecting plate 9 and the annular connecting plate 10 with the box-type frame body 1 to complete modular construction, and forming a steel-concrete combined member to bear the stress of the penetration piece.
Working condition six: during construction, the connecting mechanism is integrally hoisted in place, and temporary supports are arranged.
A seventh working condition: and connecting the horizontal reinforcing steel bars 7 and the vertical reinforcing steel bars 8 of the wall body with the weldable mechanical connecting sleeve 2, arranging the reinforcing steel bars of the peripheral wall body side by side, and pouring concrete.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A modularized connecting structure of a penetration piece and a concrete wall of a nuclear power plant is characterized by comprising a box-shaped frame body, wherein the inner side of the box-shaped frame body is fixedly connected with a connecting plate on the peripheral side of the penetration piece; the box framework outside evenly sets up shaped steel shear key, sets up a plurality of first pegs on the shaped steel shear key, and crisscross sleeve and the second peg that sets up between two adjacent shaped steel shear keys, sleeve are used for the joint bar, shaped steel shear key, box framework are used for forming steel-concrete composite member with the concrete wall in order to undertake the stress of through-member.
2. The modular connection structure of the nuclear power plant penetration assembly and the concrete wall as claimed in claim 1, wherein the box-type frame body is square, the box-type frame body comprises a box-type outer frame and a box-type inner frame, and the box-type outer frame and the box-type inner frame are fixedly connected through stiffening plates.
3. The modular connection structure of a nuclear power plant penetration assembly to a concrete wall of claim 2, wherein the stiffening plates comprise transverse stiffening plates and longitudinal stiffening plates;
the transverse stiffening plates and the longitudinal stiffening plates are vertically and alternately arranged, and two ends of each stiffening plate are respectively connected with the box-type outer frame and the box-type inner frame.
4. The modular connection structure of a nuclear power plant penetrating member and a concrete wall as claimed in claim 1, wherein the connecting plate is used for being fixed on the periphery of the penetrating member, the connecting plate comprises a plurality of annular connecting plates and radial connecting plates, and two ends of the connecting plate are respectively connected with the box-shaped inner frame and the penetrating member.
5. The modular connection structure of a nuclear power plant penetration assembly to a concrete wall as claimed in claim 4, wherein said circumferential and radial webs are perpendicular and staggered.
6. The modular connection structure of a nuclear power plant penetration assembly and a concrete wall as claimed in claim 2, wherein the section steel shear key is perpendicular to the outer side of the box-type outer frame, and the first stud is perpendicular to the section steel shear key.
7. The modular connection structure of a nuclear power plant penetration assembly to a concrete wall as claimed in claim 6, wherein said second pin is perpendicular to the box-type external frame and said sleeve is used to connect the horizontal and longitudinal reinforcement.
8. The modular connection structure of a nuclear power plant penetrating member and a concrete wall as claimed in claim 1, wherein anchoring plates are arranged on two sides of the corner of the box-type frame body, and the anchoring plates are connected through split steel members.
9. A method of connecting a nuclear plant penetration member to a concrete wall, using a modular connection of a nuclear plant penetration member to a concrete wall as claimed in any one of claims 1 to 8, comprising the steps of:
manufacturing a box-type frame body, installing a profile steel shear key, a sleeve and a stud outside the box-type frame body, and installing an anchoring plate and a counter-pulling steel piece at the corner of the box-type outer frame;
the outer wall of the pipeline of the penetration piece is provided with a radial connecting plate and a circumferential connecting plate, and then the radial connecting plate and the circumferential connecting plate are spliced and connected with the box-type inner frame;
integrally hoisting the connecting structure in place, and arranging a temporary support;
and arranging horizontal steel bars and vertical steel bars, and pouring concrete.
10. The method of claim 9, wherein the horizontal and vertical reinforcement bars are connected to the sleeve, and then the concrete is poured after the peripheral wall reinforcement bars are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310094530.6A CN115928893B (en) | 2023-02-06 | 2023-02-06 | Modularized connecting structure and method for nuclear power plant penetrating piece and concrete wall |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310094530.6A CN115928893B (en) | 2023-02-06 | 2023-02-06 | Modularized connecting structure and method for nuclear power plant penetrating piece and concrete wall |
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| CN115928893A true CN115928893A (en) | 2023-04-07 |
| CN115928893B CN115928893B (en) | 2024-01-12 |
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| CN113700144A (en) * | 2021-07-27 | 2021-11-26 | 河海大学 | Assembled TRC-steel tube composite confined concrete column and mounting method thereof |
| CN215253682U (en) * | 2021-02-09 | 2021-12-21 | 深圳中广核工程设计有限公司 | Wall connection structure and building structure wall |
| CN114541621A (en) * | 2022-01-26 | 2022-05-27 | 上海民航新时代机场设计研究院有限公司 | Modularization shear force wall convenient to connect and level and vertical connection structure thereof |
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2023
- 2023-02-06 CN CN202310094530.6A patent/CN115928893B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29723866U1 (en) * | 1997-01-17 | 1999-04-15 | Morze Reichartz Sigrun Von | Fastener |
| KR20120097261A (en) * | 2011-02-24 | 2012-09-03 | 한국기술교육대학교 산학협력단 | Method for constructing partition wall having seismic control |
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