CN117605183B - Ultra-long concrete wall body with self-adaptive release of temperature stress - Google Patents
Ultra-long concrete wall body with self-adaptive release of temperature stress Download PDFInfo
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- CN117605183B CN117605183B CN202410093423.6A CN202410093423A CN117605183B CN 117605183 B CN117605183 B CN 117605183B CN 202410093423 A CN202410093423 A CN 202410093423A CN 117605183 B CN117605183 B CN 117605183B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 238000005520 cutting process Methods 0.000 claims description 38
- 230000002787 reinforcement Effects 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 19
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- 239000002674 ointment Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 7
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 230000008093 supporting effect Effects 0.000 claims description 5
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- 238000010276 construction Methods 0.000 abstract description 22
- 230000006698 induction Effects 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008602 contraction Effects 0.000 description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 12
- 239000003673 groundwater Substances 0.000 description 9
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- 239000004944 Liquid Silicone Rubber Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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Abstract
The application discloses an ultra-long concrete wall capable of adaptively releasing temperature stress, and relates to the technical field of building wall construction, comprising a plurality of main body walls and a plurality of induced joint structure walls, wherein the main body walls and the induced joint structure walls are alternately arranged along the extending direction of the ultra-long concrete wall, and the wall thickness of the induced joint structure walls is smaller than that of the main body walls; the induced joint structure wall comprises a first wall body and a second wall body, wherein the first wall body is arranged on one side of the main body wall, which is close to a soil body, the second wall body is arranged on one side of the main body wall, which is close to the interior of the basement, the first wall body and the second wall body are alternately arranged along the extending direction of the ultra-long concrete wall body, and the thickness surface of the first wall body is staggered with the thickness surface of the second wall body; the ultra-long concrete wall body further comprises a reinforcing wall, wherein the reinforcing wall is arranged on one side of the main body wall, which is close to the soil body, and simultaneously is in slidable contact with the side walls of the adjacent two main body walls, which are close to the soil body. The application has the effect of improving the structural strength of the induction joint of the ultra-long concrete outer wall of the basement.
Description
Technical Field
The application relates to the technical field of building wall construction, in particular to an ultra-long concrete wall capable of adaptively releasing temperature stress.
Background
With the vigorous development of the building industry, the ultra-large building structure is more and more, and for basements of large logistics cold chain storage structures, the long-axis span direction can reach more than 500 meters, so that the casting of the ultra-long concrete outer wall of the basement is involved in the construction process.
When the ultra-large building structure is constructed, the influence of environmental factors on the concrete wall structure is considered, and the concrete can expand with heat and contract with cold at different temperatures, so that the internal stress of the concrete structure is accumulated. The super-long concrete wall body is longer in length, the generated thermal expansion and cold contraction deformation conditions are more obvious, and the temperature stress in the super-long concrete wall body is not easy to release through deformation, so that cracks are easy to generate when the temperature of the super-long concrete wall body changes, and the structure is damaged.
At present, when an ultra-long concrete wall is constructed, a inducing seam is arranged to relieve temperature stress cracks generated by thermal expansion and contraction. The induction seam is artificially arranged in the wall body, and the induction seam is cracked when the ultra-long concrete wall body expands with heat and contracts with cold, so that the effect of releasing the internal temperature stress of the ultra-long concrete wall body is achieved.
The traditional induced seam setting method comprises the following steps: the thickness of the wall body is thinned from two sides at the induced joint, so that the thickness of the wall body at the induced joint is thinner than the thickness of other positions of the wall body, and the induced joint is led to generate. However, the ultra-long concrete outer wall of the basement needs to resist the lateral soil pressure applied by the soil body on the periphery, and the thickness of the wall body at the induction joint is thinner, so that the structural strength of the wall body at the induction joint can be further reduced after the wall body at the induction joint is cracked under the action of the lateral soil pressure, and the concrete outer wall of the basement is further structurally weak at the induction joint.
Disclosure of Invention
In order to solve the problem of low structural strength at the induction joint of the ultra-long concrete outer wall of the basement, the application provides the ultra-long concrete wall body with self-adaptive release of temperature stress.
The application provides an ultra-long concrete wall body with self-adaptive release of temperature stress, which adopts the following technical scheme:
the ultra-long concrete wall body capable of adaptively releasing temperature stress comprises a plurality of main body walls and a plurality of induced joint structure walls, wherein the main body walls and the induced joint structure walls are alternately arranged along the extending direction of the ultra-long concrete wall body, and the wall thickness of the induced joint structure walls is smaller than that of the main body walls;
the induced joint structure wall comprises a first wall body and a second wall body, wherein the first wall body is arranged on one side, close to soil, of the main body wall, the second wall body is arranged on one side, close to the interior of a basement, of the main body wall, the first wall body and the second wall body are alternately arranged along the extending direction of the ultra-long concrete wall, and the thickness surface of the first wall body is staggered with the thickness surface of the second wall body;
The ultra-long concrete wall body further comprises a reinforcing wall, wherein the reinforcing wall is arranged on one side, close to the soil body, of the main body wall and is simultaneously in slidable contact with the side walls, close to the soil body, of the adjacent two main body walls.
By adopting the technical scheme, the induced seam structure wall is arranged between two adjacent main body walls, and the thickness of the induced seam structure wall is smaller than that of the main body walls, so that a deformation space exists between the two adjacent main body walls, and the possibility of generating cracks during thermal expansion and cold contraction is reduced; meanwhile, the induced seam structure wall can also induce temperature stress cracks to appear on the induced seam structure wall, so that the damage of temperature stress to the main wall structure after temperature change is reduced;
The induced joint structure wall is arranged in a staggered mode, and the thickness faces of the first wall body and the second wall body are staggered, so that deformation spaces can exist when the thickness section faces of the main body wall expand with heat and contract with cold, and the possibility of temperature stress cracks generated between the induced joint structure wall and the main body wall is reduced;
because the sum of the wall thickness of the induced joint structure wall and the wall thickness of the connecting wall is smaller than the wall thickness of the main body wall, the structural strength of the induced joint structure wall is lower than that of the main body wall, and when the underground outdoor wall resists the lateral soil pressure, if the induced joint structure wall is only used for resisting the lateral soil pressure, the stress requirement is difficult to meet; the structure strength of the induced joint structure wall can be improved by arranging the reinforced wall so as to meet the strength requirement of resisting lateral soil pressure; when the reinforced wall is in sliding contact with the main body wall, and thermal expansion and cold contraction are generated at the two ends of the main body wall, larger torsion force is not easy to generate at the joint of the main body wall and the reinforced wall, and then the condition of connection failure between the reinforced wall and the main body wall occurs.
Optionally, the induced joint structure wall further comprises a connecting wall, the connecting wall is connected between any two adjacent main body walls, the side wall of the connecting wall close to the soil body is coplanar with the side wall of the main body wall close to the soil body, the sum of the wall thickness of the connecting wall and the wall thickness of the first wall is smaller than that of the main body wall, and the sum of the wall thickness of the connecting wall and the wall thickness of the second wall is also smaller than that of the main body wall.
By adopting the technical scheme, the connecting wall is arranged on one side close to the soil body, so that a complete wall surface is formed on one side of the basement outer wall close to the soil body, the occurrence of water leakage and water seepage at joints of different sections of walls is reduced, and the waterproof function of the basement outer wall is realized.
Optionally, prestressed steel bars are stretched in the first wall, and the first wall is poured by micro-expansion concrete; the reserved steel bars of the main body wall are connected in the second wall body through the steel bar sleeve.
By adopting the technical scheme, the prestressed reinforcement is tensioned in the first wall, so that when the main body wall is subjected to cold shrinkage, a tensile force is applied to the first wall, thereby counteracting the prestressed pre-tensioned in advance, reducing the possibility of crack occurrence at the first wall, and simultaneously inducing the temperature stress of the ultra-long concrete wall to be concentrated at the first wall when the main body wall is subjected to cold shrinkage; because the first wall body is arranged on one side close to the soil body, and other structures are further arranged between the first wall body and the basement, if cracks are formed in the first wall body and are not easy to repair, the first wall body is poured by utilizing micro-expansion concrete, and the micro-expansion concrete has free expansion and deformation and can reduce the possibility of cracks at the first wall body.
The connection of reserved reinforcing bars is realized only through the sleeve in the second wall body, the prestressed reinforcing bars are not arranged, so that when the main body wall is heated and expanded, the temperature stress can be induced to be concentrated to the second wall body, expansion deformation occurs at the second wall body, and as the second wall body is close to the interior of the basement, crack repair is convenient to realize, the construction cost can be saved because the second wall body does not adopt micro-expansion concrete pouring, and meanwhile, the binding of the reinforcing bars in the second wall body is realized through the reserved reinforcing bars in the sleeve connection, the construction difficulty can be reduced, and the second wall body is more rapid in construction.
Optionally, a plurality of damping support members are further disposed at the gap between two adjacent main body walls, and the damping support members are disposed at intervals along the height direction of the main body walls.
By adopting the technical scheme, the damping support piece is arranged to strengthen the support strength between two adjacent main body walls, so that the influence of strength weakening at the induced joint structure wall on the integral structure strength of the basement outer wall is reduced as much as possible; meanwhile, the length of the damping support piece can be expanded and contracted, and the length of the damping support piece can be adaptively adjusted when the main body walls on two sides are subjected to the action of thermal expansion and contraction.
Optionally, the ultra-long concrete wall further comprises a bending-resistant assembly, wherein the bending-resistant assembly comprises a first steel plate welded with a reinforcement cage in the main body wall and a plurality of bracket plates vertically welded on the first steel plate, and after the casting of the main body wall is completed, the bracket plates partially extend out of the side wall of the main body wall;
The plurality of bracket plates are arranged around the circumference of the damping support piece, and each end of the damping support piece is fixed with the plurality of bracket plates on one bending resistance assembly.
By adopting the technical scheme, as the outer wall of the basement bears lateral soil pressure, a connecting weak point can be generated at the joint of the damping support piece and the main body wall, and the joint is easy to distort or break due to bending moment force exerted by the lateral soil pressure; on one hand, the embedded bending-resistant assemblies enable two ends of the damping support piece to be firmly connected with the main body wall, and on the other hand, the bracket plates can resist bending moment force at the connecting positions, so that the connecting positions of the two ends of the damping support piece are not prone to occurrence of connection failure; because the steel has better ductility, can produce appropriate amount of deformation, consequently make first steel sheet, bracket board and damping support piece by the steel, can satisfy the user demand more.
Optionally, the gaps between two adjacent main body walls are further filled with ointments, and the ointments wrap a plurality of damping supports.
By adopting the technical scheme, on one hand, the ointment can protect the damping support, reduce the possibility of corrosion or rust of the damping support and prolong the service life of the damping support; on the other hand, gap filling between two adjacent main body walls can be realized, the shape of the ointment can be changed, and the ointment can be better adapted to the thermal expansion and cold contraction deformation of the main body walls at two sides.
Optionally, the both sides end department of main part wall is pre-buried to have spacing channel-section steel, the both sides end department of reinforcing wall is pre-buried to have spacing cutting, spacing cutting peg graft in the spacing channel-section steel, just spacing channel-section steel with steel reinforcement cage welded fastening in the main part wall, spacing cutting with steel reinforcement cage welded fastening in the reinforcing wall.
By adopting the technical scheme, when the steel bars of the main body wall are bound, the limit channel steel is welded on the steel bar cage of the main body wall, and then the concrete of the main body wall is poured; before binding the reinforcement cage of the reinforcing wall, firstly inserting a limit cutting into the limit channel steel from the upper part of the limit channel steel, binding the reinforcement cage of the reinforcing wall, and welding the limit cutting on the reinforcement cage of the reinforcing wall; set up spacing channel-section steel and spacing cutting and can realize the connection between main part wall and the reinforcing wall, not realize fixed connection through the concrete between reinforcing wall and the main part wall simultaneously for still there is the activity space between main part wall and the reinforcing wall, when main part wall produces expend with heat and contract with cold deformation, be difficult for producing great internal stress in the junction of reinforcing wall and main part wall.
Optionally, the surfaces of the limiting cutting and the limiting channel steel are coated with an anti-rust coating.
Through adopting above-mentioned technical scheme, because spacing cutting and spacing channel-section steel are steel construction, appear corrosion easily, set up rust-resistant coating and can improve spacing cutting and spacing channel-section steel anticorrosive ability, extension spacing cutting and spacing channel-section steel's life.
Optionally, an elastic water absorption layer is arranged between the limiting cutting and the inner wall of the limiting channel steel, and the elastic water absorption layer fills up a gap between the limiting cutting and the limiting channel steel.
By adopting the technical scheme, the elastic water absorption layer is arranged outside the limiting cutting, on one hand, the underground water leaking from the gap between the main body wall and the reinforcing wall can be blocked and absorbed, and the impact force of the underground water can be relieved due to the fact that the wall thickness of the connecting wall is thinner, the underground water is prevented from being absorbed by the elastic water absorption layer, and the condition that the underground water directly washes the connecting wall to cause flushing and damage to the connecting wall is reduced; on the other hand, when main part wall expend with heat and contract with cold produces the deformation, spacing cutting removes for spacing channel-section steel, sets up spacing cutting and spacing channel-section steel can be kept apart to the elasticity layer that absorbs water, reduces the direct contact between the two to reduce spacing cutting and remove for spacing channel-section steel, the striking or the extrusion of two will rust-resistant coating destroy the possibility.
Optionally, the main part wall bottom is provided with the guiding gutter, the guiding gutter lateral wall is connected with and is used for collecting water exhaust aqueduct.
Through adopting above-mentioned technical scheme, when the main part wall warp because expend with heat and contract with cold for when spacing cutting and spacing channel-section steel relative movement, spacing cutting can extrude the elasticity layer that absorbs water, thereby extrude the groundwater that the layer absorbs water with elasticity, and the groundwater that extrudes flows down and assemble to the guiding gutter in, discharge along the guiding tube, thereby play the effect that blocks water.
In summary, the present application includes at least one of the following beneficial effects:
1. according to the ultra-long concrete wall, the first wall body and the second wall body are arranged in a staggered manner, and different construction methods are adopted for the first wall body and the second wall body, so that the temperature stress is concentrated to the first wall body when the basement outer wall is contracted by cooling, and is concentrated to the second wall body when the basement outer wall is expanded by heating, thereby realizing the control of the thermal expansion and contraction deformation of the ultra-long concrete wall and reducing the influence and damage of the temperature stress on the basement outer wall structure;
2. a plurality of damping supporting pieces are arranged between two adjacent main body walls, and the damping supporting pieces can improve the structural strength of the induced joint structural wall, so that the influence of the arrangement of the induced joint structural wall on the overall strength of the basement outer wall is reduced;
3. The damping support piece is fixed on the main body wall through the bending resistance component, the bending resistance component can enable the damping support piece to be firmly connected with the main body wall, and the bending strength of two ends of the damping support piece can be improved, so that the strength of the joint of the damping support piece and the bending resistance component is stronger;
4. The application is provided with the reinforced wall, can resist the lateral soil pressure at the induced joint structure wall, so that the lateral soil pressure is not directly applied to the connecting wall, and can realize water blocking at the joint between the reinforced wall and the main body wall, thereby reducing the scouring of underground water to the connecting wall.
Drawings
FIG. 1 is a schematic view of a partial structure of an ultra-long concrete wall according to an embodiment of the present application;
FIG. 2 is a schematic view showing a partial structure of a bending resistance assembly structure according to an embodiment of the present application, in which a main body wall is only bound with a reinforcement cage without concrete being poured;
Fig. 3 is a schematic plan view showing a connection manner of the first wall and the second wall with the reinforcing steel bars of the main body wall according to the embodiment of the present application;
Fig. 4 is a schematic view of an exploded structure for showing a structure of a junction of a reinforcing wall and a main body wall, in which one main body wall is not concreted, according to an embodiment of the present application.
Reference numerals illustrate: 1. a main body wall; 11. limiting channel steel; 2. a first wall; 3. a second wall; 4. a connecting wall; 5. reinforcing walls; 51. limiting cutting; 6. damping support; 7. a bending resistance assembly; 71. a first steel plate; 72. bracket plates; 8. a water guide groove; 81. a water guide pipe.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The ultra-long concrete wall body with the self-adaptive release of temperature stress is used for building construction of a basement outer wall with the length of more than 50 meters, in a related construction project, the total length of a long shaft of a building is 500 meters, the building is divided into 5 monomers for construction, and each monomer is separated by a construction joint so as to relieve thermal expansion and cold contraction deformation of the concrete wall body. But the length of each monomer still reaches 100 meters. If the deformation joints are used for separation, the structure strength of the wall body is not attractive, and the construction difficulty is high, so that induction joints are arranged on the outer wall of each single basement at intervals, temperature cracks generated by heat expansion and cold contraction are generated at the induction joints, and the induction joints are usually arranged at intervals of 15 meters.
After the basement structure is constructed in the foundation pit, the fertilizer groove backfilling is needed to be carried out on the periphery of the basement, backfilling soil is compacted, and at the moment, the backfilling soil and the soil layer on the periphery can apply lateral soil pressure to the outer wall of the basement.
Referring to fig. 1, an ultra-long concrete wall body with self-adaptive release of temperature stress comprises a plurality of main body walls 1 and a plurality of induction joint structural walls, wherein one induction joint structural wall is arranged between every two main body walls 1. The induced joint structure wall comprises connecting walls 4, and the connecting walls 4 are arranged between any two adjacent main body walls 1; the induced joint structure wall further comprises one of a first wall body 2 and a second wall body 3, wherein the first wall body 2 and the second wall body 3 are arranged between two adjacent main body walls 1 at intervals, namely, only the first wall body 2 or only the second wall body 3 is arranged between two adjacent main body walls 1, and the first wall body 2 and the second wall body 3 are arranged in a staggered mode. After the induced joint structural wall is arranged, the first wall body 2 and the connecting wall 4 are parallel and attached, and the second wall body 3 and the connecting wall 4 are parallel and spaced; the wall thickness of the connecting wall 4 is smaller than the wall thicknesses of the first wall body 2 and the second wall body 3, the wall thicknesses of the first wall body 2, the second wall body 3 and the connecting wall 4 are thinner than the main body wall 1, the sum of the wall thicknesses of the first wall body 2 and the connecting wall 4 is smaller than the thickness of the main body wall 1, and the sum of the wall thicknesses of the second wall body 3 and the connecting wall 4 is smaller than the thickness of the main body wall 1. In one embodiment, the wall thickness of the main body wall 1 is 600mm, the wall thickness of the connecting wall 4 is 100mm, and the wall thicknesses of the first wall 2 and the second wall 3 are 250mm.
Referring to fig. 1, a connecting wall 4 is cast together with a main body wall 1, the connecting wall 4 is arranged close to a soil body, and the side wall of the connecting wall 4 close to the soil body is coplanar with the side wall of the main body wall 1 close to the soil body; the first wall body 2 and the connecting wall 4 are arranged close to the side wall of the interior of the basement, and two ends of the first wall body 2 are communicated with the main body walls 1 at two sides; the second wall body 3 is arranged near the interior of the basement, and the side wall of the second wall body 3 near the interior of the basement is coplanar with the side wall of the main body wall 1 facing the interior of the basement.
Referring to fig. 1, when the first wall 2 and the second wall 3 are disposed, the thickness surface of the first wall 2 and the thickness surface of the second wall 3 are staggered, so that the main body wall 1 has deformation spaces in other thickness surface ranges except the thickness surface of the connecting wall 4, and the temperature stress of each thickness surface of the main body wall 1 can be released more efficiently.
Referring to fig. 1, since the sum of wall thicknesses of the first wall 2 and the connection wall 4, or the sum of wall thicknesses of the second wall 3 and the connection wall 4 is smaller than the thickness of the main body walls 1, there is a gap between two adjacent main body walls 1, and a plurality of damping supports 6 are provided at the gap. The damping support pieces 6 are horizontally arranged at intervals along the height direction of the main body wall 1, and two ends of the damping support pieces 6 are fixedly connected with the two main body walls 1 respectively. The damping support 6 can be in the same structural form as a viscous damper commonly used in construction, in the damping support 6 arrangement of the application, the filling of damping medium is required to be reduced, and the resistance of the length adjustment of the damping support 6 is reduced, so that the damping support 6 is more convenient for realizing the length expansion and contraction.
Referring to fig. 1 and 2, the damping support 6 is provided at both ends with bending resistance assemblies 7, and stable connection of both ends of the damping support 6 with the main body wall 1 is achieved through the bending resistance assemblies 7. The bending resistance assembly 7 includes a first steel plate 71 and a plurality of bracket plates 72 welded to the first steel plate 71, the plurality of bracket plates 72 are welded to the same side of the first steel plate 71, and a plane of the plurality of bracket plates 72 is perpendicular to a plane of the first steel plate 71. The bracket plates 72 are arranged at intervals in a surrounding mode, two ends of the damping support piece 6 are inserted into the surrounding area of the bracket plates 72, and the damping support piece 6 is welded with the bracket plates 72 in a full mode.
Referring to fig. 2, the bending resistance assembly 7 is pre-embedded in the main body wall 1, specifically, when binding reinforcement cages in the main body wall 1, a first steel plate 71 is welded and fixed on the reinforcement cages of the main body wall 1, and a plurality of bracket plates 72 are welded on the first steel plate 71; after the pouring of the main body wall 1 is completed, the first steel plate 71 is buried in the main body wall 1, and the bracket plate 72 partially extends out from the side wall of the main body wall 1. When the damping support 6 is installed, two ends of the damping support 6 are respectively inserted between the bracket plates 72 at the two ends, and the bracket plates 72 and the damping support 6 are welded and fixed, so that the damping support 6 is installed.
Referring to fig. 1, after the damping support 6 is installed, a gap between two main body walls 1 is filled with a grease so that the gap between two adjacent main body walls 1 is filled with the grease. The filling ointment can wrap the damping support 6 on one hand, and reduce the contact between the damping support 6 and the outside air, so that the possibility of corrosion or damage of the damping support 6 is reduced; on the other hand, gaps between the main body walls 1 need to be filled, the ointment has better deformability, and the ointment is selected to be filled between two adjacent main body walls 1, so that the obstruction and influence of the filler on the thermal expansion and contraction deformation of the main body walls 1 can be reduced. It should be noted that, the ointment is provided with the structure outside to carry out the shutoff, therefore the oleamen is difficult for flowing out the wall body.
Referring to fig. 1 and 3, when the first wall 2 is constructed, since the damping support 6 is further provided between the first wall 2 and the inside of the basement, and is filled with an ointment layer, if cracks are generated on the first wall 2, it is inconvenient to repair. Therefore, when the first wall body 2 is constructed, the first wall body 2 and the main body wall 1 are simultaneously bound with reinforcing steel bars and then are poured, the prestressed reinforcing steel bars are tensioned in the first wall body 2, and the prestressed reinforcing steel bars are arranged in a through length along the extending direction of the first wall body 2, so that the reinforcing steel bar joint points of the prestressed reinforcing steel bars and the main body wall 1 are positioned in the main body wall 1; and simultaneously, pouring the first wall body 2 by utilizing micro-expansion concrete.
Referring to fig. 1 and 3, in the casting construction of the second wall 3, the same reference numeral as the main body wall 1 is used for casting, and the casting of the second wall 3 is performed after the casting of the main body wall 1 is completed. Reserving joint reinforcing steel bars when the reinforcing steel bars of the main body wall 1 are bound, so that the joint reinforcing steel bars are positioned in the casting range of the second wall 3 after the casting of the main body wall 1 is completed; when the second wall body 3 is poured, after the connection of the joint reinforcing steel bars of the two adjacent main body walls 1 is realized by using the reinforcing steel bar sleeve, the second wall body 3 can be poured. Because the second wall body 3 is arranged close to the interior of the basement, the second wall body 3 is easy to repair manually after being cracked, and therefore, the second wall body 3 is subjected to pouring construction according to the mode, and the difficulty of binding the reinforcing steel bars in the second wall body 3 can be reduced on the premise of meeting the use requirement; in addition, the construction cost of the second wall 3 can be reduced by constructing the second wall 3 according to the method because the unit price of the micro-expansive concrete is more expensive than that of the common concrete, so that the construction of the ultra-long concrete wall is more economical.
Referring to fig. 1, since the wall thickness of the first wall 2 and the second wall 3 is thinner, the temperature stress can be concentrated to the first wall 2 and the second wall 3, and the basement outer wall can be induced to realize expansion and contraction deformation at the gap between two adjacent main walls 1. The first wall 2 and the second wall 3 adopt different construction measures, so that temperature stress can be guided. Specifically, when the temperature is reduced and the concrete in the main body wall 1 is contracted by cooling, the first wall 2 is stretched to two sides, so that the tightening force of the first wall 2 given by the stretched prestressed reinforcement in the first wall 2 can be counteracted, the temperature stress in the main body wall 1 is released, and the possibility of generating temperature cracks at the first wall 2 is reduced; the second wall body 3 adopts the same pouring construction method as the main body wall 1, when the temperature rises and the concrete of the main body wall 1 is heated and expanded, the second wall body 3 becomes a stress weak position, so that the temperature stress can be guided to be concentrated at the second wall body 3, cracks appear at the second wall body 3, and the temperature stress in the main body wall 1 is released.
Referring to fig. 1, a reinforcing wall 5 is further disposed between any two adjacent main body walls 1, the reinforcing wall 5 is disposed on one side of the main body wall 1 close to the soil body, the length of the reinforcing wall 5 is greater than the distance between the two adjacent main body walls 1, and both ends of the reinforcing wall are slidably contacted with the side wall of the main body wall 1 close to the soil body. Because the wall thickness of the induced joint structure wall is thinner, if the soil body on the periphery of the basement is directly contacted with the induced joint structure wall, a stress weak section is easily generated at the induced joint structure wall, and the reinforcing wall 5 can strengthen the capability of the induced joint structure wall for resisting lateral soil pressure.
Referring to fig. 1 and 4, the reinforcing wall 5 is constructed after the construction of the main body wall 1 and the induced joint structure wall is completed, when the reinforcement cage in the main body wall 1 is bound, the limit channel steel 11 is pre-embedded at the position, close to the soil body, of the two ends of the reinforcement cage of the main body wall 1, the limit channel steel 11 gradually gets longer in the direction from the soil body to the interior of the basement, and the opening direction of the limit channel steel 11 faces one side of the soil body; the limit channel steel 11 is arranged along the height direction of the main body wall 1 in a through length mode, and the surface of the limit channel steel 11 is coated with an antirust coating. After the limit channel steel 11 is welded to the reinforcement cage of the main body wall 1, the concrete pouring of the main body wall 1 is carried out, and after the concrete pouring of the main body wall 1 is completed, the opening side end face of the limit channel steel 11 is coplanar with the side wall of the main body wall 1.
Referring to fig. 1 and 4, before pouring the reinforcing wall 5, first, a limit insert 51 is inserted into the limit channel 11 from the top of the main body wall 1, the setting height of the limit insert 51 is the same as the setting height of the limit channel 11, and the surface of the limit insert 51 is coated with an anti-rust coating. After the setting of the limiting cutting 51 is completed, binding the reinforcement cage in the reinforced wall 5, and simultaneously welding and fixing the limiting cutting 51 and the reinforcement cage in the reinforced wall 5; and after the reinforcement cage of the reinforcing wall 5 is bound, pouring concrete of the reinforcing wall 5. In this case, fig. 3 is needed to be described, the reinforcing wall and the main body wall in fig. 3 do not slide up and down, and the top plate of the basement is still poured above the main body wall in the subsequent construction step, so that the up and down sliding cannot be realized.
Referring to fig. 1 and 4, the limiting insert 51 is further wrapped with an elastic water-absorbing layer, which may be made of polyurethane foam, silicone rubber, or other elastic, compressible and water-absorbing materials. In the method for setting the elastic water-absorbing layer by taking the silicone rubber as an example, after the limit cutting 51 is mounted on the limit channel steel 11, liquid silicone rubber is poured into a gap between the limit cutting 51 and the inner wall of the limit channel steel 11, so that the liquid silicone rubber is solidified into a silicone rubber layer in the limit channel steel 11, and the elastic water-absorbing layer is formed. The elastic water absorption layer is arranged, on the one hand, the limit cutting 51 and the limit channel steel 11 can be isolated, when the main body wall 1 deforms due to expansion caused by heat and contraction caused by cold, the main body wall 1 and the reinforcing wall 5 relatively move, at the moment, the limit channel steel 11 moves relative to the limit cutting 51, the impact force between the limit cutting 51 and the limit channel steel 11 can be relieved through the elastic water absorption layer, the damage of the direct contact of the limit cutting 51 and the limit channel steel 11 to the anti-rust coating on the surfaces of the limit cutting 51 and the limit channel steel 11 is reduced, and the possibility of corrosion of the limit cutting 51 and the limit channel steel 11 is reduced; meanwhile, the elastic water absorption layer can play a role in blocking underground water entering between the reinforced wall 5 and the connecting wall 4 from a gap at the joint of the reinforced wall 5 and the main body wall 1; the elastic water absorption layer made of the silicon rubber also has water absorption, can absorb underground water penetrating into the elastic water absorption layer, and can also extrude the elastic water absorption layer to extrude the underground water absorbed in the elastic water absorption layer when the limiting cutting 51 and the limiting channel steel 11 relatively move.
Referring to fig. 4, a water guiding groove 8 is provided at the bottom of a limit channel 11, and the water guiding groove 8 is embedded in a structural bottom plate at the bottom of an outer wall of a basement, and the embedded position of the water guiding groove 8 corresponds to the installation positions of the limit channel 11 and the limit cutting 51, so that groundwater extruded from an elastic water absorbing layer and groundwater flowing into the elastic water absorbing layer can flow downwards and be converged into the water guiding groove 8. The side wall of the water guide groove 8 is also communicated with a water guide pipe 81, and the water guide pipe 81 is communicated into the dewatering well at the periphery, so that the underground water collected in the water guide groove 8 can be discharged into the dewatering well, and the blocking of the underground water is realized. Because the connecting wall 4 is a stress weak point, if the connecting wall is subjected to groundwater scouring for a long time, cracks or structural damage easily occur, the overall structural strength of the external wall of the groundwater is affected, and the groundwater scouring to the connecting wall 4 can be reduced by blocking the groundwater, so that the damage to the connecting wall 4 is reduced.
The implementation principle of the ultra-long concrete wall body with the self-adaptive release of temperature stress provided by the embodiment of the application is as follows: according to the application, the first wall body 2 and the second wall body 3 are alternately arranged, so that deformation spaces with thermal expansion and cold contraction exist in each thickness section of the main body wall 1 as much as possible; in addition, the first wall body 2 and the second wall body 3 are constructed in different construction modes, so that the generation place of the temperature cracks can be induced and controlled, and the maintenance of workers is facilitated; the damping support pieces 6 and the reinforcing walls 5 are arranged, so that the structural strength of the induced joint structural wall can be increased, and the basement outer wall can better resist the lateral soil pressure; set up spacing cutting 51, spacing channel-section steel 11 and elasticity water absorption layer, can realize the connection between reinforcing wall 5 and the main part wall 1 to intercept and the separation to the groundwater of seepage between reinforcing wall 5 and the main part wall 1.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. The ultra-long concrete wall body capable of adaptively releasing temperature stress is characterized by comprising a plurality of main body walls (1) and a plurality of induced joint structure walls, wherein the main body walls (1) and the induced joint structure walls are alternately arranged along the extending direction of the ultra-long concrete wall body, and the wall thickness of the induced joint structure walls is smaller than that of the main body walls (1);
The induced joint structure wall comprises a first wall body (2) and a second wall body (3), wherein the first wall body (2) and the second wall body (3) are alternately arranged along the extending direction of the ultra-long concrete wall body, and the thickness surface of the first wall body (2) is staggered with the thickness surface of the second wall body (3);
The ultra-long concrete wall body further comprises a reinforcing wall (5), wherein the reinforcing wall (5) is arranged on one side, close to the soil body, of the main body wall (1) and is simultaneously in sliding contact with the side walls, close to the soil body, of the adjacent two main body walls (1);
The induced joint structure wall further comprises a connecting wall (4), the connecting wall (4) is connected between any two adjacent main body walls (1), the side wall of the connecting wall (4) close to the soil body is coplanar with the side wall of the main body wall (1) close to the soil body, the first wall (2) is arranged on one side of the connecting wall (4) close to the interior of the basement and is parallel to the connecting wall (4), and the second wall (3) is arranged on one side of the main body wall (1) close to the interior of the basement;
The sum of the wall thickness of the connecting wall (4) and the wall thickness of the first wall (2) is smaller than the wall thickness of the main body wall (1), and the sum of the wall thickness of the connecting wall (4) and the wall thickness of the second wall (3) is also smaller than the wall thickness of the main body wall (1);
prestressed steel bars are stretched in the first wall body (2), and the first wall body (2) is poured by micro-expansion concrete; the reserved steel bars of the main body wall (1) are connected in the second wall body (3) through steel bar sleeves.
2. The ultra-long concrete wall with self-adaptive release of temperature stress according to claim 1, wherein: and a plurality of damping supporting pieces (6) are further arranged at the gaps between two adjacent main body walls (1), and the damping supporting pieces (6) are arranged at intervals along the height direction of the main body walls (1).
3. The ultra-long concrete wall with self-adaptive release of temperature stress according to claim 2, wherein: the ultra-long concrete wall body further comprises a bending-resistant assembly (7), the bending-resistant assembly (7) comprises a first steel plate (71) welded with a reinforcement cage in the main body wall (1) and a plurality of bracket plates (72) vertically welded on the first steel plate (71), and after the main body wall (1) is poured, the bracket plates (72) partially extend out of the side wall of the main body wall (1);
The bracket plates (72) are arranged around the circumference of the damping support piece (6), and each end of the damping support piece (6) is fixed with the bracket plates (72) on the bending resistance assembly (7).
4. The ultra-long concrete wall with self-adaptive release of temperature stress according to claim 2, wherein: and the gaps between two adjacent main body walls (1) are filled with ointments, and the ointments wrap a plurality of damping supporting pieces (6).
5. The ultra-long concrete wall with self-adaptive release of temperature stress according to claim 1, wherein: limiting channel steel (11) are embedded at two side ends of the main body wall (1), limiting cutting bars (51) are embedded at two side ends of the reinforcing wall (5), the limiting cutting bars (51) are inserted in the limiting channel steel (11), the limiting channel steel (11) are fixedly welded with reinforcement cages in the main body wall (1), and the limiting cutting bars (51) are fixedly welded with the reinforcement cages in the reinforcing wall (5).
6. The ultra-long concrete wall with self-adaptive release of temperature stress according to claim 5, wherein: the surfaces of the limiting cutting (51) and the limiting channel steel (11) are coated with an anti-rust coating.
7. The ultra-long concrete wall with self-adaptive release of temperature stress according to claim 5, wherein: an elastic water absorption layer is arranged between the limiting cutting (51) and the inner wall of the limiting channel steel (11), and fills up a gap between the limiting cutting (51) and the limiting channel steel (11).
8. The ultra-long concrete wall with self-adaptive release of temperature stress according to claim 5, wherein: the water guide groove (8) is formed in the bottom of the main body wall (1), and a water guide pipe (81) for discharging water collection is connected to the side wall of the water guide groove (8).
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