CN115928893B - Modularized connecting structure and method for nuclear power plant penetrating piece and concrete wall - Google Patents
Modularized connecting structure and method for nuclear power plant penetrating piece and concrete wall Download PDFInfo
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- CN115928893B CN115928893B CN202310094530.6A CN202310094530A CN115928893B CN 115928893 B CN115928893 B CN 115928893B CN 202310094530 A CN202310094530 A CN 202310094530A CN 115928893 B CN115928893 B CN 115928893B
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- 239000004567 concrete Substances 0.000 title claims abstract description 55
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 40
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 230000035515 penetration Effects 0.000 claims description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 8
- 238000010008 shearing Methods 0.000 description 12
- 238000005452 bending Methods 0.000 description 7
- 239000011150 reinforced concrete Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 230000009471 action Effects 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
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 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
- 230000008719 thickening Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
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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
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- Reinforcement Elements For Buildings (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a modularized connecting structure and a modularized connecting method for a nuclear power plant penetrating piece and a concrete wall, which relate to the technical field of nuclear power plant structural engineering, and specifically comprise the following steps: the modularized connecting structure of the nuclear power plant penetrating piece and the concrete wall 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 peripheral side of the penetrating piece; the outer side of the box frame body is uniformly provided with a profile steel shear key, the profile steel shear key is provided with a plurality of first pegs, sleeves and second pegs are arranged between two adjacent profile steel shear keys in a staggered way, the sleeves are used for connecting reinforcing steel bars, and the profile steel shear key and the box frame body are used for forming a steel-concrete combined member with a concrete wall so as to bear the stress of a penetrating piece; the connecting structure can effectively reduce the number of the reinforcing steel bars, avoid the problems of excessive density of the reinforcing steel bars, collision with other components and the like, facilitate construction and ensure the concrete pouring quality.
Description
Technical Field
The invention relates to the technical field of nuclear power plant structural engineering, in particular to a modularized connecting structure and method of a nuclear power plant penetrating piece and a concrete wall.
Background
The penetrating piece is a device for fixing the through-wall pipeline on the wall body, is a part of the pipeline, is a channel for accommodating process media, and is important to ensure effective isolation of the media from the outside and avoid radioactive leakage between different rooms or environments.
At present, a local thickening wall body is generally adopted in a large-scale penetrating piece area of a nuclear power plant, and a large number of circumferential, vertical and horizontal reinforcing steel bars are arranged on the periphery of the penetrating piece to ensure the stress performance of a connecting area. The mode leads to the too dense reinforcing bars, the difficulty exists in binding and arranging the reinforcing bars, the consumption of the reinforcing bars is large, the construction progress is slower, and meanwhile, the bending resistance, shearing resistance and impact cutting resistance of the connecting part are poor, so that the pouring quality of concrete cannot be guaranteed.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a modularized connecting structure of a penetration assembly of a nuclear power plant and a concrete wall, and the steel-concrete combined member is formed by a steel member and a reinforced concrete wall by means of bolts, a steel shear key and a sleeve, so that the bending resistance, shearing resistance and shearing resistance of a connecting part are effectively improved, the thickness of the concrete wall can be reduced, the number of additional steel bars on the periphery of the penetration assembly is reduced, the problems of excessive density of the steel bars, collision with other members and the like are avoided, and the concrete pouring quality is ensured.
In order to achieve the above object, the present invention is realized by the following technical scheme:
in a first aspect, a modular connection structure for a nuclear power plant penetration assembly and a concrete wall includes a box frame, wherein an inner side of the box frame is fixedly connected with a connection plate on a circumferential side of the penetration assembly; the box framework outside evenly sets up shaped steel shear key, sets up a plurality of first pegs on the shaped steel shear key, crisscross sleeve and the second peg of setting up between two adjacent shaped steel shear keys, and the sleeve is used for connecting the reinforcing bar, and shaped steel shear key, box framework are used for constituteing steel-concrete composite member with the concrete wall in order to bear the stress of penetrating member.
As a further implementation mode, the box frame body is square, and comprises a box outer frame and a box inner frame, and the box outer frame and the box inner frame are fixedly connected through stiffening plates.
As a further implementation, the stiffening plates include transverse stiffening plates and longitudinal stiffening plates;
the transverse stiffening plates and the longitudinal stiffening plates are perpendicular and are arranged in a staggered mode, and two ends of each stiffening plate are respectively connected with the box-shaped outer frame and the box-shaped inner frame.
As a further implementation manner, 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 inner frame and the penetrating piece.
As a further implementation, the circumferential connection plates and the radial connection plates are vertically and alternately connected.
As a further implementation, the profile steel shear key is perpendicular to the outer side surface of the box-shaped outer frame, and the first peg is perpendicular to the profile steel shear key.
As a further implementation, the second peg is perpendicular to the box casing, and the sleeve is used to connect the horizontal rebar and the longitudinal rebar.
As a further implementation mode, anchor plates are arranged on two sides of the corner of the box-shaped frame body, and the anchor plates are connected through opposite-pull steel pieces.
In a second aspect, a method for connecting a power plant penetrating member with a concrete wall, which adopts the connecting structure of any one of the power plant penetrating member and the concrete wall, comprises the following steps:
manufacturing a box-shaped frame body, installing a profile steel shear key, a sleeve and a second bolt on the outer side of the box-shaped frame body, and installing an anchor plate and a counter-pulling steel piece at the corner of the box-shaped outer frame;
the outer wall of the penetrating piece pipeline is provided with a radial connecting plate and a circumferential connecting plate, and then is spliced and connected with the box-type inner frame;
integrally hoisting the connecting structure in place, and setting a temporary support;
setting horizontal steel bars and vertical steel bars, and pouring concrete.
As a further implementation mode, 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. according to the invention, the outer wall of the penetrating piece pipeline is connected through the box frame body, the steel structural member and the reinforced concrete wall form the steel-concrete combined member by virtue of the pegs, the steel shearing keys and the sleeve, so that the bending resistance, shearing resistance and shearing resistance of the connecting part are effectively improved, the thickness of the concrete wall can be reduced, and the number of additional steel bars around the penetrating piece is reduced.
2. The connecting structure can effectively reduce the number of the reinforcing steel bars, avoid the problems of excessive density of the reinforcing steel bars, collision with other components and the like, is convenient for construction, and ensures the concrete pouring quality.
3. The connecting structure can meet the stress requirement of the large-scale penetrating piece part, is convenient for modularized manufacture, 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 included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is an elevation view of a connection structure between a large-scale penetration of a nuclear power plant and a concrete wall in an embodiment of the present invention.
FIG. 2 is a schematic diagram of the structure A-A in FIG. 1.
FIG. 3 is a schematic view of the B-B structure of FIG. 1.
In the figure: the mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustration is only schematic.
Wherein: 1. the box frame body is characterized by comprising a box frame body, a sleeve, a stud, a section steel shear key, a counter-pulling steel piece, an anchor plate, a horizontal steel bar, a longitudinal steel bar, a radial connecting plate, a circumferential connecting plate, a transverse stiffening plate, a longitudinal stiffening plate and a penetrating piece pipeline outer wall.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. 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 1
In an exemplary embodiment of the present invention, referring to fig. 1 to 3, a modular connection structure of a penetration and a concrete wall of a nuclear power plant includes a box frame 1, wherein an inner side of the box frame 1 is fixedly connected with a connection plate on a peripheral side of a pipe outer wall 13 of the penetration, and an outer side of the box frame 1 is used for casting concrete.
Referring to fig. 1 to 3, the box frame 1 is square, the box frame 1 includes a box outer frame and a box inner frame, a set distance is provided between the box outer frame and the box inner frame, and the box outer frame and the box inner frame are fixedly connected through stiffening plates.
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 perpendicular and are arranged in a staggered mode, the transverse stiffening plates 11 and the longitudinal stiffening plates 12 are fixedly welded in sequence, and two ends of the transverse stiffening plates 11 and the longitudinal stiffening plates 12 are fixedly welded with the box outer frame and the box inner frame respectively to connect the box outer frame and the box inner frame into a whole. The transverse stiffening plate 11 is arranged along the width direction of the box frame body 1, the longitudinal stiffening plate 12 and the box frame body 1 are positioned on the same plane, and the longitudinal stiffening plate 12 is arranged at the middle position of the box outer frame and the box inner frame.
The box outer frame and the box inner frame are connected through the stiffening plate, so that the combined action of the box member inner frame and the outer frame is ensured, and the rigidity of the stiffening plate steel plate is ensured.
The outside of the box frame body 1 is uniformly provided with a section steel shear key 4, a plurality of pegs 3 are arranged on the section steel shear key 4, and sleeves 2 and pegs 3 are arranged between two adjacent section steel shear keys 4 in a staggered manner.
The profile steel shear key 4 of this embodiment is fixedly welded on the lateral surface of the box-shaped outer frame, as shown in fig. 1, the box-shaped outer frame has four lateral surfaces, three profile steel shear keys 4 are uniformly arranged on each lateral surface, the profile steel shear keys 4 are vertically arranged with the lateral surface of the box-shaped outer frame, and the profile steel shear keys 4 have a set length.
The shearing key 4 of the section steel can improve the anti-shearing capability of the part of the penetrating piece, and can improve the bending resistance and torsion resistance of the wall body under the combined action of the shearing key and the reinforced concrete wall.
Four first pegs are arranged on the profile steel shear key 4, every two first pegs are in a group, the two groups of first pegs are welded on two sides of the profile steel shear key 4, and the first pegs are vertically arranged on the profile steel shear key 4.
And second pegs and sleeves 2 are welded between two adjacent steel shear keys in a staggered manner on the outer side surface of the box-shaped outer frame. The sleeve 2 is used for connecting the reinforcing bar, considers the width of box frame, and the second peg and the sleeve 2 that this embodiment set up four sets of on every box frame lateral surface, are two sets of between two shaped steel shear keys 4, and two sets of second peg and sleeve 2 are along box frame width direction equipartition. Each set comprising three second pegs and three sleeves.
The second peg is perpendicular to the box frame, sleeve 2 is used for connecting horizontal reinforcing bar 7 and the one end of vertical reinforcing bar 8, and sleeve 2 is the welding machinery connecting sleeve.
The arrangement of the second studs on the outer side surface of the box-shaped outer frame is used for reinforcing the combined action of concrete and steel members; the shear key of the section steel is provided with a peg 3 (a first peg) to ensure that the section steel and the concrete wall co-act to form a section steel-concrete member. The arrangement of the first peg and the second peg can improve the ability of co-operation between the concrete and the steel member after the concrete has been poured and hardened.
The section steel shear key 4, the box frame body 1, the studs 3 and the sleeves 2 on the frame body are used for forming a steel-concrete combined member with a concrete wall so as to bear the stress of the penetrating piece.
The periphery of the outer wall 13 of the penetrating member pipeline is provided with a connecting plate, the connecting plate is fixed on the periphery of the outer wall of the penetrating member pipeline, as shown in fig. 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-type inner frame and the outer wall 13 of the penetrating member 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. Wherein the annular connecting plate 10 and the box frame body 1 are positioned on the same plane, the radial connecting plate 9 is arranged along the width direction of the box frame body, and the annular connecting plate 10 is positioned at the middle position of the width direction of the box frame body.
The inner side of the annular connecting plate 10 is matched with the outer side of the outer wall 13 of the penetrating piece pipeline, and the outer side is matched with the inner side of the box-shaped inner frame in shape, so that connection is facilitated.
The radial connecting plate 9 and the annular connecting plate 10 are arranged on the outer wall 13 of the pipeline of the penetrating member, and can be connected by adopting welding or high-strength bolts, so that the torsion resistance, the shearing resistance and the bending rigidity of the outer part of the penetrating member are ensured, and the axial force, the shearing force, the bending moment and the torque of the penetrating member are reliably transmitted to the box frame body 1.
In order to overcome the stress influence of the corners of the box frame body 1, anchor plates 6 are arranged on two sides of the four corners of the box frame body 1, the anchor plates 6 extend out of the box frame body 1, and the anchor plates 6 are connected through opposite-pull steel pieces 5. The anchor plate 6 and the opposite-pull steel piece 5 can improve the bearing capacity of the reinforced concrete wall at the corner of the box frame body 1 and reduce the influence of stress concentration at the corner.
The opposite-pull rod piece 5 can be made of opposite-pull steel bars or round steel, and is used for reinforcing the corners of the box-type frame body 1 and weakening the adverse effect of stress concentration at the corners.
In the embodiment, after the outer wall 13 of the penetrating member pipeline is connected with the box frame body 1 through the connecting plate and the profile steel shear key 4, the bolt 3 and the sleeve 2 are arranged, the modular construction of the connecting structure is completed, the construction efficiency is high, and the operation is simple.
In actual engineering design, the steel-concrete combined member consisting of the section steel shear key 4, the box frame body 1 and the reinforced concrete wall can be considered to bear the axial force, the shearing force, the bending moment and the torque of the penetrating piece together, so that the thickness of the wall body is reduced, and the amount of reinforcing steel bars added to the periphery of the penetrating piece is reduced.
During actual construction, the connecting structure is integrally hoisted in place, temporary supports are arranged, the field welding quantity is reduced, and the welding quality is ensured by factory manufacture.
The horizontal steel bars 7 and the vertical steel bars 8 of the wall body are connected with the weldable mechanical connecting sleeve 2, peripheral wall steel bars are distributed side by side, the problems that the distance between the steel bars is too small and collision with other components is avoided, and concrete pouring and vibrating quality is guaranteed.
Example two
A connection method of a nuclear power plant penetrating member and a concrete wall adopts the modularized connection structure of the nuclear power plant penetrating member and the concrete wall according to the first embodiment, and comprises the following steps:
working condition one: using a steel plate or section steel, a box frame 1 as shown in fig. 1, 2 and 3 is manufactured, and transverse stiffening plates 11 and longitudinal stiffening plates 12 are provided inside the section steel.
Working condition II: outside the box frame 1, a peg 3 (second peg), a sleeve 2, a section steel shear key 4, and the like are installed, and the peg 3 (first peg) is welded on the section steel shear key 4.
And (3) working condition III: on both sides of the corner of the box frame 1, anchor plates 6, opposite-pull steel bars or round steel are installed.
And (4) working condition four: the radial connection plate 9 and the annular connection plate 10 are welded on the outer wall 13 of the penetration piece pipeline.
Working condition five: the outer wall 13 of the penetrating piece pipeline, the radial connecting plate 9 and the annular connecting plate 10 are assembled, welded and connected with the box frame body 1, so that modular construction is completed, and a steel-concrete combined member is formed to bear the stress of the penetrating piece.
Working condition six: during construction, the connecting mechanism is integrally hoisted in place, and temporary supports are arranged.
Working condition seven: connecting the horizontal steel bars 7 and the vertical steel bars 8 of the wall body with the weldable mechanical connecting sleeve 2, arranging the peripheral wall steel bars side by side, and pouring concrete.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The modularized connecting structure of the nuclear power plant penetrating piece and the concrete wall 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 at the peripheral side of the penetrating 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, crisscross sleeve and the second peg of setting up between two adjacent shaped steel shear keys, and the sleeve is used for connecting the reinforcing bar, and shaped steel shear key, box framework are used for constituteing steel-concrete composite member with the concrete wall in order to bear the stress of penetrating member.
2. The modular connection structure of a nuclear power plant penetration assembly and a concrete wall according to claim 1, wherein the box frame is square, the box frame comprises a box outer frame and a box inner frame, and the box outer frame and the box inner frame are fixedly connected through stiffening plates.
3. The modular connection of a nuclear power plant penetration to a concrete wall according to claim 2, wherein the stiffening plates comprise transverse stiffening plates and longitudinal stiffening plates;
the transverse stiffening plates and the longitudinal stiffening plates are perpendicular and are arranged in a staggered mode, and two ends of each stiffening plate are respectively connected with the box-shaped outer frame and the box-shaped inner frame.
4. The modular connection structure of a nuclear power plant penetration assembly and a concrete wall according to claim 1, wherein the connection plate is fixed on the circumference of the penetration assembly, the connection plate comprises a plurality of circumferential connection plates and radial connection plates, and two ends of the connection plate are respectively connected with the box inner frame and the penetration assembly.
5. The modular connection structure of a nuclear power plant penetration assembly to a concrete wall according to claim 4, wherein the circumferential and radial connection plates are vertically and staggeredly connected.
6. The modular connection structure of a nuclear power plant penetration assembly to a concrete wall of claim 2, wherein the profile shear key is perpendicular to the outer side of the box frame and the first peg is perpendicular to the profile shear key.
7. The modular connection structure of a nuclear power plant penetration to a concrete wall according to claim 6, wherein the second peg is perpendicular to the box casing and the sleeve is used to connect horizontal and longitudinal bars.
8. The modular connection structure of a nuclear power plant penetration assembly and a concrete wall according to claim 1, wherein anchor plates are installed at both sides of the corners of the box frame body, and the anchor plates are connected through a split steel member.
9. A method for connecting a nuclear power plant penetration to a concrete wall, characterized in that a modular connection structure of a nuclear power plant penetration to a concrete wall according to any one of claims 1 to 8 is used, comprising the steps of:
manufacturing a box-shaped frame body, installing a profile steel shear key, a sleeve and a bolt on the outer side of the box-shaped frame body, and installing an anchor plate and a counter-pulling steel piece at the corner of the box-shaped outer frame;
the outer wall of the penetrating piece pipeline is provided with a radial connecting plate and a circumferential connecting plate, and then is spliced and connected with the box-type inner frame;
integrally hoisting the connecting structure in place, and setting a temporary support;
setting horizontal steel bars and vertical steel bars, and pouring concrete.
10. The method for connecting a nuclear power plant penetration assembly to a concrete wall according to claim 9, wherein the horizontal and vertical rebars are connected to a sleeve, and then the surrounding wall rebars are arranged and concrete is poured.
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| 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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| 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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| CN115928893B true CN115928893B (en) | 2024-01-12 |
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| CN116927538A (en) * | 2023-09-04 | 2023-10-24 | 深圳中广核工程设计有限公司 | Profile steel frame module for reinforcing complex hole of nuclear power plant |
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| 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
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|---|---|---|---|---|
| DE29723866U1 (en) * | 1997-01-17 | 1999-04-15 | Morzé-Reichartz, Sigrun von, 41352 Korschenbroich | Fastener |
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