CN112196091B - Assembled building U-shaped groove foundation and construction method thereof - Google Patents
Assembled building U-shaped groove foundation and construction method thereof Download PDFInfo
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 210000005056 cell body Anatomy 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims description 13
- 239000004567 concrete Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 12
- 238000005498 polishing Methods 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
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- 239000011324 bead Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/0007—Base structures; Cellars
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
- E02D27/016—Flat foundations made mainly from prefabricated concrete elements
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Abstract
The utility model relates to an assembled building U type groove basis and construction method thereof, including the U type cell body that has the cavity groove with locate cylindricality steel component in the cavity groove, U type cell body includes two piece at least prefabs of splicing each other along self length direction, cylindricality steel component is equipped with the coupling assembling that is used for connecting two adjacent prefabs of fixed and leveling. This application has the effect of the transport and the transportation of the U type cell body of being convenient for.
Description
Technical Field
The application relates to the field of building foundation construction, in particular to an assembled building U-shaped groove foundation and a construction method thereof.
Background
With the development of economy and the continuous improvement of the living standard of people, the construction industry gradually adopts the development of industrialized and standardized components at present, wherein the assembled reinforced concrete structure is one of the important directions of the development of the building structure in China.
The assembled reinforced concrete structure is beneficial to the development of building industrialization in China, improves production efficiency, saves energy, develops green and environment-friendly buildings, and is beneficial to improving and ensuring the quality of building engineering. The assembly type construction can better meet the requirements of green construction on land saving, energy saving, material saving, water saving, environmental protection and the like, reduces the negative influence on the environment, comprises the steps of reducing noise, preventing dust, reducing environmental pollution, cleaning transportation, reducing site interference, saving water, electricity, materials and other resources and energy sources, and follows the principle of sustainable development. Secondly, the assembly type structure can continuously finish a plurality of or all working procedures of the engineering in sequence, thereby reducing the types and the number of the engineering machines entering the field, eliminating idle time of working procedure connection, realizing the three-dimensional crossing operation, reducing constructors, improving the working efficiency, reducing the material consumption, reducing the environmental pollution and providing the guarantee for green construction.
The Chinese patent application with publication number CN102535495B discloses an assembly type building U-shaped groove foundation and a construction method thereof, belonging to the technical field of foundation structures. The method comprises the following steps: 1. paying off a foundation; 2. digging foundation soil; 3. laying and binding a reinforcing mesh or reinforcing steel bars; 4. erecting a template; 5. pouring concrete; 6. cushion blocks; 7. fixing a cylindrical steel member; 8. and pouring concrete again to form the U-shaped groove foundation of the fabricated building.
At present, due to the fact that the construction cost of the building U-shaped groove foundation is low, the building U-shaped groove foundation is suitable for various fields and various stress forms, a plurality of construction units can directly purchase the U-shaped groove foundation meeting requirements from manufacturers, namely the prefabricated U-shaped groove foundation, and carry the prefabricated U-shaped groove foundation to a construction site to be directly assembled and molded, but the prefabricated U-shaped groove foundation is large in size and fixed in shape, so that inconvenience in carrying or transporting is easily caused.
Disclosure of Invention
In order to improve the convenience in carrying and transportation, the application provides an assembled building U-shaped groove foundation and a construction method thereof.
The application provides a pair of assembled building U type groove basis adopts following technical scheme:
the utility model provides an assembled building U type groove basis, includes the U type cell body that has the cavity groove and locates cylindricality steel component in the cavity groove, U type cell body includes two piece at least prefabs of splicing each other along self length direction, cylindricality steel component is equipped with the coupling assembling that is used for connecting two adjacent prefabs of fixed and leveling.
By adopting the technical scheme, when in use, the plurality of prefabricated parts are sequentially placed at the bottom of the groove along the length direction of the U-shaped groove body, and then two adjacent prefabricated parts are sequentially connected through the connecting assembly to form a complete U-shaped groove body, namely, the U-shaped groove body with larger volume is manufactured into the plurality of prefabricated parts with smaller volume, so that the transportation and the installation are facilitated; and coupling assembling and carry out the leveling to it to when guaranteeing the wallboard installation, the bottom surface of wallboard can stably laminate cavity groove tank bottom, thereby improves the assembly precision, and then has alleviated a plurality of prefabs and spliced each other and lead to the relatively poor condition of cavity groove tank bottom roughness, has the advantage of high efficiency construction, transportation convenience and high accuracy assembly promptly concurrently.
Optionally, the connecting assembly includes a plurality of fixing rods vertically and upwardly disposed on the prefabricated members, and a part of the fixing rods on two adjacent prefabricated members extends into a hollow of the cylindrical steel member.
Through adopting above-mentioned technical scheme, during the use, lower cover cylindricality steel component for the cylindricality steel component entangles the part dead lever on two prefabs simultaneously, thereby prevents the horizontal migration of two prefabs, thereby plays the effect of connecting two prefabs.
Optionally, one side surface of the prefabricated member is provided with an upper inclined surface, and the other side surface of the prefabricated member is provided with a lower inclined surface parallel to the upper inclined surface; the cylindrical steel component comprises a movable plate and a fixing piece with a U-shaped section, the fixing piece comprises an integrally formed waist plate and two oppositely arranged wing plates, the movable plate is positioned at the notch of the fixing piece, and the movable plate and the fixing piece are arranged in a sliding manner along the length direction of the U-shaped groove; the peripheral surface of a part of fixed rod on one prefabricated part abuts against the surface of the waist plate opposite to the movable plate, and the peripheral surface of a part of fixed rod on the other prefabricated part abuts against the surface of the movable plate opposite to the waist plate; coupling assembling still includes connecting screw, connecting screw's both ends respectively with the fly leaf with the waist board is connected, connecting screw drives when rotating the fly leaf orientation the waist board direction removes.
By adopting the technical scheme, when the prefabricated part fixing device is used, the lower inclined plane of one prefabricated part is firstly ensured to be attached to the upper inclined plane of the other prefabricated part, the prefabricated part is kept still, the connecting screw rod is rotated, the connecting screw rod drives the movable plate to move towards the waist plate, the movable plate drives the fixed rod on the movable plate to move towards the waist plate, the prefabricated part corresponding to the fixed rod is further driven to horizontally move towards the other prefabricated part, the height of the prefabricated part is gradually raised while the prefabricated part horizontally moves under the matched guiding action of the lower inclined plane and the upper inclined plane, so that the height of one prefabricated part is finely adjusted, and the bottom flatness of the cavity groove of the two prefabricated parts is ensured; the peripheral surface of the fixed rod is always abutted against the surface of the movable plate, so that the stability of vertical movement of the prefabricated part with the height adjusted upwards is improved; when the bottoms of the cavity grooves of the two prefabricated parts are level, the bottoms of the cavity grooves of the two prefabricated parts are abutted against the bottom surface of the fixing part, the connecting screw is clamped and cannot rotate continuously, and therefore an operator can distinguish whether the bottoms of the cavity grooves of the two prefabricated parts are level or not by taking the connecting screw as a mark; and the connecting screw rod also plays the role of connecting the fixing piece and the movable plate, so that the fixing piece and the movable plate form a cylindrical steel component which tightly surrounds the fixing rod, and partial fixing rods on the two prefabricated parts are firmly sleeved in the cylindrical steel component, thereby further improving the connecting strength of the two prefabricated parts.
Optionally, the fixing rods on the prefabricated member are arranged in two groups arranged along the length direction of the prefabricated member, one group of fixing rods consists of two fixing rods arranged along the width direction of the prefabricated member, and the maximum distance between the two fixing rods is equal to the distance between the opposite surfaces of the two wing plates of the fixing member; the circumferential surface of the fixing rod abutted against the surface of the waist plate is welded and connected with the opposite surface of the wing plate.
By adopting the technical scheme, the cylindrical steel component can be simultaneously sleeved and connected with a group of fixing rods on the two prefabricated components, and the peripheral surfaces of the group of two fixing rods are respectively abutted against the opposite surfaces of the two wing plates, namely when the fixing rods move towards the waist plate, the abutting has the function of sliding and guiding, so that the moving path of the prefabricated components is kept straight, the precision of height adjustment is ensured, and the prefabricated components are not easy to block; the fixed rod is used as a reference positioning point, the circumferential surface of the fixed rod is simultaneously abutted against the inner surfaces of the wing plates and the waist plates, and the position precision of the fixed part is ensured, so that the fitting precision of the bottom surface of the fixed part and the bottom of the cavity groove of the prefabricated part is improved, the feedback precision of two prefabricated part cavity grooves when the bottoms of the cavity grooves are flush is improved, and the installation precision is further improved; and the welding connection can fix the position of the fixing piece, thereby facilitating the movement of another prefabricated part.
Optionally, the bottom surface of the wing plate is provided with a base plate attached to the bottom of the cavity groove of the prefabricated member.
By adopting the technical scheme, the bonding area between the cylindrical steel component and the bottom of the cavity groove is increased by arranging the base plate, the installation precision of the cylindrical steel component is improved, and the anti-overturning capacity is improved to a certain extent.
Optionally, sleeves which are one-to-one corresponding to the fixing rods are embedded in the prefabricated member, and the fixing rods are connected with the sleeves in an inserting mode.
Through adopting above-mentioned technical scheme, the sleeve of making through machining can improve the position accuracy and the straightness that hangs down between dead lever and the prefab to the connection precision and the leveling precision between two prefabs have been improved greatly.
Optionally, a first embedded part is embedded between the bottom surface of the cavity groove of the prefabricated part and the lower inclined surface, the upper surface of the first embedded part is flush with the bottom surface of the cavity groove of the prefabricated part, and the side surface of the first embedded part is flush with the lower inclined surface; a second embedded part is embedded between the bottom surface of the cavity groove of the prefabricated part and the upper inclined surface, the upper surface of the second embedded part is flush with the bottom surface of the cavity groove of the prefabricated part, and the side surface of the second embedded part is flush with the upper inclined surface; the first embedded part and the second embedded part are fixedly connected through connecting steel bars embedded in the prefabricated part in advance.
By adopting the technical scheme, through setting the specific shapes of the first embedded part and the second embedded part, when the prefabricated part is manufactured, the relative position between the first embedded part and the second embedded part can be adjusted and fixed by utilizing a clamp, and then the first embedded part and the second embedded part are fixedly connected by welding the connecting reinforcing steel bars, so that the position precision between the first embedded part and the second embedded part is ensured, then the upper surface of the first embedded part and the inclined surfaces of the first embedded part and the second embedded part are used as reference surfaces, the prefabricated part is manufactured, the size precision of the prefabricated part is high, the position precision of the upper inclined surface and the lower inclined surface of the prefabricated part is ensured, the assembling adjustment of the prefabricated part is facilitated, and the integral installation precision is improved.
Optionally, the movable plate is provided with two vertical and symmetrical ribs on the surface thereof opposite to the waist plate, and the peripheral surface of the fixed rod abutting against the movable plate abuts against the side surface of the rib far away from the other rib.
By adopting the technical scheme, the convex edge is matched with the fixed rod, so that the movable plate is limited, the trend that the movable plate rotates along with the connecting screw rod is limited, and the movable plate can keep stable linear motion under the driving of the connecting screw rod; and the moment of torsion of connecting screw passes through the fly leaf and transmits to on the dead lever with bead complex, and this moment of torsion forces two dead levers to leave mutually, namely makes the grafting steadiness between dead lever and the sleeve more strengthen, and this moment of torsion forces the dead lever butt on the opposite face of pterygoid lamina to ensure the butt stability of dead lever and pterygoid lamina, thereby ensure the precision of sliding of the relative pterygoid lamina of dead lever, and then make the removal route of prefab comparatively stable straight, and then improve whole installation accuracy.
The application also provides a construction method of the assembled building U-shaped groove foundation, which comprises the following steps:
s1, manufacturing a prefabricated part, which comprises the following steps:
s1.1, adjusting the relative position between a first embedded part and a second embedded part, fixing by using a clamp, and then fixedly connecting the first embedded part and the second embedded part by welding a connecting steel bar;
s1.2, positioning by matching the reference surface and the inner wall of the template by taking the upper surface and the inclined surface of the first embedded part and the inclined surface of the second embedded part as the reference surface;
s1.3, pouring concrete into the template;
s1.4, demolding to prepare a prefabricated part;
s2, constructing a groove, which comprises the following steps:
s2.1, positioning and paying off the groove;
s2.2, digging a groove, wherein the wall of the groove is an inclined surface;
s2.3, tamping the bottom of the groove, and uniformly paving gravel;
s3, assembling a U-shaped groove body, which comprises the following steps:
s3.1, arranging the prefabricated parts at the bottom of the groove along the length direction, and enabling two adjacent prefabricated parts to be in lap joint through matching between the upper inclined plane and the lower inclined plane;
s3.2, raising and leveling the first prefabricated part by using a level gauge;
s3.3, vertically inserting a fixing rod into the prefabricated part;
s3.4, vertically and downwards placing a fixing piece above the two prefabricated pieces to ensure the abutting fit of the fixing piece and the fixed rod, and placing a movable plate at the notch of the fixing piece to ensure the abutting fit of the movable plate and the fixed rod;
s3.5, welding a first nut at the first through hole on the movable plate, horizontally and sequentially penetrating a connecting screw rod through a second through hole of the waist plate and the first through hole of the movable plate, ensuring that the connecting screw rod is in threaded connection with the first nut, welding a second nut on the connecting screw rod, and ensuring that the end face of the second nut is abutted against the surface of the waist plate, which is far away from the movable plate;
s3.6, rotating the connecting screw rod to drive the movable plate to move towards the waist plate direction, so that one prefabricated part is driven to move close to an adjacent prefabricated part, when the prefabricated part moves, the prefabricated part moves in the length direction of the U-shaped groove body and moves in height through the matching of a lower inclined plane on the prefabricated part and an upper inclined plane on the other prefabricated part, and when the prefabricated part moves upwards to be level with the bottom of the cavity groove of the adjacent prefabricated part, stopping the rotation of the connecting screw rod;
s3.7, adding gravel to the bottom of the groove and the lower surface of the prefabricated part along the groove wall of the groove;
s4, mounting of the wallboard: the wallboard is arranged at the middle position of the cavity groove through the connection of the wallboard and the cylindrical steel component;
s5, pouring and shaping: and erecting an upper template and a wedge-shaped template, and pouring concrete in the gap between the wall plate and the groove wall of the cavity groove and the gap between the prefabricated member and the groove wall of the groove.
By adopting the scheme, the flatness of the bottom of the cavity groove of the first prefabricated part is ensured, then the subsequent prefabricated parts are gradually connected and leveled along the length direction of the U-shaped groove body by taking the flatness as a reference, and after the flatness of the two adjacent prefabricated parts is adjusted, the cavity between the leveled prefabricated part and the bottom of the groove is filled by adding gravel so as to facilitate the connection leveling of the subsequent prefabricated parts; and finally, pouring concrete into the gaps between the wall plate and the groove wall of the cavity groove and the gaps between the prefabricated member and the groove wall by erecting the template so as to improve the overall connection strength, and the concrete also permeates from the gaps between the prefabricated member and the groove bottom of the groove so as to further improve the support strength of the overall structure.
Optionally, prior to step S3.1, the upper and lower slopes of the finished preform are sanded with 800-.
By adopting the scheme, firstly, the surface flatness of the upper inclined plane and the lower inclined plane can be improved, so that the upper inclined plane and the lower inclined plane can be matched with each other to slide, and the mounting precision is improved; and secondly, the residual grinding chips can be used as rolling bodies, so that the friction resistance of relative sliding of the upper inclined plane and the lower inclined plane is reduced.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the U-shaped groove body with larger volume is made into a plurality of prefabricated parts with smaller volume, so that the transportation and the installation are facilitated; the assembly precision is improved by leveling the connecting component through the connecting component, so that the condition that the bottom of the cavity groove is poor in flatness due to the fact that a plurality of prefabricated parts are spliced with one another is relieved, and the advantages of high-efficiency construction, convenience in transportation and high-precision assembly are achieved;
2. by setting the specific shapes of the first embedded part and the second embedded part and taking the upper surface of the first embedded part and the inclined surfaces of the first embedded part and the second embedded part as reference surfaces, the prefabricated part is manufactured, and the dimensional accuracy of the prefabricated part is high, so that the position accuracy of the upper inclined surface and the lower inclined surface of the prefabricated part is ensured, the prefabricated part is conveniently assembled and adjusted, and the integral installation accuracy is improved;
3. through the cooperation of bead and dead lever, not only play the limiting displacement to the fly leaf, ensure that the fly leaf can remain stable linear motion under connecting screw's drive, still utilize connecting screw's moment of torsion to improve the butt stability of dead lever and pterygoid lamina, thereby make the removal route of prefab comparatively stable straight, and then improve the overall erection precision.
Drawings
Fig. 1 is a schematic view of the overall structure of the present embodiment.
FIG. 2 is a sectional view of the present embodiment for showing the inner structure of the preform.
Fig. 3 is a schematic structural view of the cylindrical steel member of the present embodiment.
Fig. 4 is an exploded view of the present embodiment for illustrating the connection relationship between the movable plate and the stationary member.
Fig. 5 is a partially enlarged view of a portion a in fig. 4.
Fig. 6 is a schematic diagram of the present embodiment for illustrating a concrete pouring step.
Description of reference numerals: 1. a prefabricated member; 2. a cylindrical steel member; 3. a connecting assembly; 4. a base plate; 10. a cavity groove; 100. a trench; 101. mounting a template; 102. a wedge-shaped template; 103. breaking stone; 104. concrete; 11. grouting holes; 12. a lower inclined plane; 13. an upper inclined plane; 14. a first embedded part; 15. a second embedded part; 16. connecting reinforcing steel bars; 17. a sleeve; 18. an arc-shaped notch; 20. a wallboard; 21. a fixing member; 211. a waist panel; 212. a wing plate; 213. a second through hole; 22. a movable plate; 221. a rib; 222. a first through hole; 31. fixing the rod; 32. connecting a screw rod; 33. a first nut; 34. a second nut; 35. a third nut; 41. a waist-shaped hole.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses assembled building U type groove basis. Referring to fig. 1, the assembled building U-shaped groove foundation comprises a U-shaped groove body with a cavity groove 10, the U-shaped groove body comprises at least two prefabricated members 1, the two prefabricated members 1 are spliced and matched along the length direction of the U-shaped groove body, a cylindrical steel member 2 is arranged above the space between the two adjacent prefabricated members 1, the cylindrical steel member 2 is used for being installed and connected with a wallboard 20, a base plate 4 is welded on the bottom surface of the cylindrical steel member 2, and the base plate 4 is attached to the bottom of the cavity groove 10 of the prefabricated member 1; and the cylindrical steel member 2 is provided with a connecting assembly 3, the connecting assembly 3 being used for connecting and leveling two adjacent prefabricated members 1.
As shown in fig. 2, a grouting hole 11 vertically penetrates through the prefabricated member 1, one side surface of the prefabricated member 1 along the length direction thereof is an upper inclined surface 13, the other side surface thereof is a lower inclined surface 12, and the lower inclined surface 12 is arranged in parallel with the upper inclined surface 13.
As shown in fig. 2, a first embedded part 14 is embedded at a boundary between a groove bottom surface of a cavity groove 10 of a prefabricated member 1 and a lower inclined surface 12, the first embedded part 14 is arranged in the same width as the cavity groove 10 of the prefabricated member 1, an upper surface of the first embedded part 14 is flush with the groove bottom surface of the cavity groove 10 of the prefabricated member 1, and a side surface of the first embedded part 14 is flush with the lower inclined surface 12.
A second embedded part 15 is embedded between the bottom surface of the cavity groove 10 of the prefabricated part 1 and the upper inclined surface 13, the second embedded part 15 and the cavity groove 10 of the prefabricated part 1 are arranged in the same width, the upper surface of the second embedded part 15 is flush with the bottom surface of the cavity groove 10 of the prefabricated part 1, and the side surface of the second embedded part 15 is flush with the upper inclined surface 13; and moreover, a connecting steel bar 16 is also embedded in the prefabricated part 1, and the first embedded part 14 and the second embedded part 15 are welded and fixed together through the connecting steel bar 16.
Meanwhile, two groups of sleeves 17 are embedded in the prefabricated part 1, the sleeves 17 are vertically arranged, the two groups of sleeves 17 are distributed along the length direction of the prefabricated part 1, arc notches 18 are formed in the edges of the first embedded part 14 and the second embedded part 15, one group of sleeves 17 is matched and welded with the arc notches 18 of the first embedded part 14, and the other group of sleeves 17 is matched and welded with the arc notches 18 of the second embedded part 15.
A set of sleeve 17 includes two sleeve 17 along the width direction symmetry setting of prefab 1, and coupling assembling 3 includes vertical grafting in the dead lever 31 of sleeve 17, and dead lever 31 is cylindric, and dead lever 31 is vertical upwards to the top of prefab 1.
As shown in fig. 3 and 4, the cylindrical steel member 2 includes a movable plate 22 and a fixing member 21 having a "U" shaped cross section, the movable plate 22 is located at the notch of the fixing member 21, the fixing member 21 includes a waist plate 211 and two wings 212 oppositely disposed, the backing plate 4 is welded to the wings 212, and the backing plate 4 is provided with a waist-shaped hole 41 for the fixing rod 31 to pass through, the waist-shaped hole 41 is disposed along the length direction of the U-shaped groove.
The group of fixing rods 31 on one of the prefabricated members 1 is located at the inner right angle of the fixing member 21, that is, the peripheral surface of the fixing rod 31 abuts against the surfaces of the waist plate 211 and the wing plate 212 at the same time, and the peripheral surface of the fixing rod 31 on the other prefabricated member 1 abuts against the surface of the movable plate 22 facing the waist plate 211, and the fixing rod 31 is further fixed with a vertically arranged rib 221, the rib 221 is vertically arranged, and the peripheral surface of the fixing rod 31 abutting against the movable plate 22 abuts against the side surface of the rib 221 far away from the other rib 221.
As shown in fig. 5, the lower portion of the movable plate 22 is provided with a first through hole 222 (see fig. 2), the first through hole 222 is welded with a first nut 33, the waist plate 211 is provided with a second through hole 213, the connecting assembly 3 further includes a connecting screw 32, the connecting screw 32 horizontally penetrates through the second through hole 213 and the first through hole 222 in sequence, and the connecting screw 32 is in threaded connection with the first nut 33; meanwhile, the connecting screw 32 is further welded and fixed with a second nut 34 and a third nut 35, an end surface of the second nut 34 abuts against a surface of the waist plate 211 away from the movable plate 22, and the third nut 35 is located on a side away from the first nut 33 relative to the second nut 34.
The embodiment of the application also discloses a construction method of the assembled building U-shaped groove foundation, which comprises the following steps:
s1, manufacturing a prefabricated part 1, wherein the method comprises the following steps:
s1.1, adjusting the relative position between a first embedded part 14 and a second embedded part 15, fixing by using a clamp, then fixedly connecting the first embedded part 14 and the second embedded part 15 by welding a connecting steel bar 16, and then welding a sleeve 17.
S1.2, positioning is carried out by matching the reference surface and the inner wall of the template by taking the upper surface and the inclined surface of the first embedded part 14 and the inclined surface of the second embedded part 15 as the reference surface.
S1.3, pouring concrete into the formwork.
S1.4, demolding to prepare the prefabricated member 1.
S2, constructing the groove 100, which comprises the following steps:
s2.1, positioning and paying off of the groove 100: and calculating the specific positions and the number of the U-shaped groove bodies installed on the foundation according to the geological condition and the stress condition, and then marking out the construction area by adopting white powder according to a design drawing.
S2.2, digging a groove 100: an excavator is used for excavating earth, so that the groove 100 is obtained, and the groove wall of the groove 100 is an inclined surface.
S2.3, tamping the groove 100 by using a frog tamper, and uniformly paving gravel 103 at the bottom of the groove 100.
S3, assembling a U-shaped groove body, which comprises the following steps:
s3.1, polishing and trimming the upper inclined plane 13 and the lower inclined plane 12 of the prefabricated part 1 by using 800-1000 mother sand paper, retaining polishing debris on the polishing surface, cleaning off part of the polishing debris by using a brush, and leveling the rest of the polishing debris; the prefabricated members 1 are arranged along the length direction of the groove 100 in a hoisting or manual mode, so that two adjacent prefabricated members 1 are in lap joint through the matching between the upper inclined surface 13 and the lower inclined surface 12.
S3.2, heightening the first prefabricated part 1 by using the gravel 103, ensuring that the bottom of the cavity groove 10 of the first prefabricated part 1 is kept horizontal, and detecting the bottom of the cavity groove 10 of the prefabricated part 1 for multiple times by using a level gauge while heightening the prefabricated part 1.
S3.3, vertically inserting the fixing rod 31 into the sleeve 17.
S3.4, mounting the cylindrical steel component 2: firstly, the lower part of the backing plate 4 is arranged on the bottom surface of the cavity groove 10 through the matching of the waist-shaped hole 41 on the backing plate 4 and the fixed rod 31; then vertically placing a fixing piece 21 downwards above the two prefabricated pieces 1 to ensure the abutting fit of the fixing piece 21 and the fixing rod 31, then fully welding the joint between the backing plate 4 and the wing plate 212, and performing spot welding on the abutting part of the fixing rod 31 and the wing plate 212; the movable plate 22 is disposed at the notch of the fixing member 21 to ensure the abutting engagement between the movable plate 22 and the fixing rod 31.
And S3.5, welding the first nut 33 at the first through hole 222 on the movable plate 22, then sequentially passing the connecting screw rod 32, on which the second nut 34 and the third nut 35 are welded in advance, through the second through hole 213 of the waist plate 211 and the first through hole 222 of the movable plate 22, and ensuring that the connecting screw rod 32 is in threaded connection with the first nut 33, wherein the end surface of the second nut 34 abuts against the surface, away from the movable plate 22, of the waist plate 211.
And S3.6, adding a balance weight on the leveled prefabricated part 1 or utilizing the self weight of an operator to enable the position of the prefabricated part 1 to be relatively stable, then driving the connecting screw rod 32 to rotate through the matching of an electric wrench and the third nut 35, driving the movable plate 22 to move towards the waist plate 211 through the matching of the connecting screw rod 32 and the first nut 33, driving the non-leveled prefabricated part 1 to move towards the leveled prefabricated part 1 through the matching of the movable plate 22 and the fixed rod 31, and gradually lifting the height of the prefabricated part 1 while horizontally moving through the matching guide effect of the lower inclined surface 12 and the upper inclined surface 13, so that the height of the non-leveled prefabricated part 1 is finely adjusted until the upper surface of the first embedded part 14 of the non-leveled prefabricated part 1 is abutted and attached to the lower surface of the base plate 4.
S3.7, filling crushed stones 103 into the hollow space between the bottom of the groove 100 and the lower surface of the prefabricated member 1 along the groove wall of the groove 100.
And S3.8, repeating S3.4-S3.7 until the connection leveling of all the prefabricated parts 1 is completed.
S4, mounting the wall panel 20: the wall plate 20 is installed at the middle position of the cavity groove 10 by the connection of the wall plate 20 with the cylindrical steel member 2.
S5, pouring and shaping: as shown in fig. 5, an upper mold plate 101 and a wedge-shaped mold plate 102 are erected, and concrete 104 is poured into a gap between the wall plate 20 and the wall of the cavity groove 10 and a gap between the preform 1 and the wall of the trench 100.
The implementation principle of the embodiment of the application is as follows: make a plurality of less prefabs 1 of volume with the great U type groove system of volume, be convenient for transportation and installation, and utilize cylindricality steel component 2 and coupling assembling 3, realize quick and high accuracy installation between the prefab 1, when wallboard 20 installs promptly, the tank bottom of laminating cavity groove 10 can be stabilized to wallboard 20's bottom surface, thereby improve the assembly precision, and then has alleviated a plurality of prefabs 1 and spliced each other and lead to the relatively poor condition of tank bottom roughness of cavity groove 10, have the high efficiency construction promptly concurrently, the advantage of transportation convenience and high accuracy assembly.
Firstly, the primary installation connection of two adjacent prefabricated parts 1 is realized through a cylindrical steel component 2, then, through rotating a connecting screw rod 32, the non-leveled prefabricated part 1 moves towards the leveled prefabricated part 1, through the matching and guiding action of a lower inclined plane 12 and an upper inclined plane 13 and the relative sliding fit (horizontal and vertical directions) between a fixing rod 31 and a wing plate 212, the non-leveled prefabricated part 1 is gradually lifted in height while moving horizontally, so that the non-leveled prefabricated part 1 is finely adjusted in height, and an operator can conveniently distinguish whether the groove bottoms of the cavity grooves 10 of the two prefabricated parts 1 are flush or not by utilizing the butt joint of the groove bottoms of the cavity grooves 10 of the prefabricated part 1 and the bottom surface of a base plate 4 by taking the mark.
And the connecting screw rod 32 also plays a role of connecting the fixing piece 21 and the movable plate 22, so that the fixing piece 21 and the movable plate form the cylindrical steel component 2 which tightly surrounds the fixing rod 31, and part of the fixing rod 31 on the two prefabricated pieces 1 is firmly sleeved in the fixing rod, thereby further improving the connecting strength of the two prefabricated pieces 1.
In addition, in the process of manufacturing the prefabricated member 1, the relative position between the first embedded part 14 and the second embedded part 15 is strictly limited through the connecting steel bars 16 so as to ensure the position accuracy between the first embedded part 14 and the second embedded part 15, and meanwhile, the upper surface of the first embedded part 14 and the inclined surfaces of the first embedded part 14 and the second embedded part 15 are used as reference surfaces, so that the dimensional accuracy of the prefabricated member 1 is high, the position accuracy of the upper inclined surface 13 and the lower inclined surface 12 of the prefabricated member 1 is ensured, the prefabricated member 1 is convenient to assemble and adjust, and the integral installation accuracy is further improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an assembled building U type groove basis, includes the U type cell body that has cavity groove (10) and locates cylindricality steel component (2) in cavity groove (10), its characterized in that: the U-shaped groove body comprises at least two prefabricated parts (1) which are spliced with each other along the length direction of the U-shaped groove body, and the cylindrical steel component (2) is provided with a connecting component (3) which is used for connecting, fixing and leveling the two adjacent prefabricated parts (1); the connecting assembly (3) comprises a plurality of fixing rods (31) which are vertically and upwards arranged on the prefabricated parts (1), and part of the fixing rods (31) on two adjacent prefabricated parts (1) extend into the hollow part of the cylindrical steel component (2); one side surface of the prefabricated part (1) is provided with an upper inclined surface (13), and the other side surface is provided with a lower inclined surface (12) parallel to the upper inclined surface (13); the cylindrical steel member (2) comprises a movable plate (22) and a fixing piece (21) with a U-shaped section, the fixing piece (21) comprises a waist plate (211) and two wing plates (212) which are oppositely arranged and are integrally formed, the movable plate (22) is positioned at the notch of the fixing piece (21), and the movable plate (22) and the fixing piece (21) are arranged in a sliding manner along the length direction of the U-shaped groove body; the peripheral surface of a part of fixing rods (31) on one prefabricated part (1) abuts against the surface of the waist plate (211) opposite to the movable plate (22), and the peripheral surface of a part of fixing rods (31) on the other prefabricated part (1) abuts against the surface of the movable plate (22) opposite to the waist plate (211); coupling assembling (3) still include connecting screw (32), connecting screw (32) both ends respectively with fly leaf (22) with waist board (211) are connected, driving when connecting screw (32) rotate fly leaf (22) orientation waist board (211) direction removes.
2. The modular building U-groove foundation of claim 1, wherein: the fixing rods (31) on the prefabricated part (1) are arranged into two groups arranged along the length direction of the prefabricated part (1), one group of fixing rods (31) consists of two fixing rods (31) arranged along the width direction of the prefabricated part (1), and the maximum distance between the two fixing rods (31) is equal to the distance between the opposite surfaces of the two wing plates (212) of the fixing part (21); the circumferential surface of the fixing rod (31) abutting against the surface of the waist plate (211) is welded and connected with the opposite surface of the wing plate (212).
3. The modular building U-groove foundation of claim 1, wherein: the bottom surface of the wing plate (212) is provided with a base plate (4) which is attached to the bottom of the cavity groove (10) of the prefabricated member (1).
4. The modular building U-groove foundation of claim 1, wherein: sleeves (17) which are arranged in one-to-one correspondence to the fixing rods (31) are embedded in the prefabricated member (1), and the fixing rods (31) are connected with the sleeves (17) in an inserted mode.
5. The modular building U-groove foundation of claim 1, wherein: a first embedded part (14) is embedded between the bottom surface of the cavity groove (10) of the prefabricated part (1) and the lower inclined surface (12), the upper surface of the first embedded part (14) is flush with the bottom surface of the cavity groove (10) of the prefabricated part (1), and the side surface of the first embedded part (14) is flush with the lower inclined surface (12); a second embedded part (15) is embedded between the bottom surface of the cavity groove (10) of the prefabricated part (1) and the upper inclined surface (13), the upper surface of the second embedded part (15) is flush with the bottom surface of the cavity groove (10) of the prefabricated part (1), and the side surface of the second embedded part (15) is flush with the upper inclined surface (13); the first embedded part (14) and the second embedded part (15) are fixedly connected through connecting steel bars (16) embedded in the prefabricated part (1).
6. The modular building U-groove foundation of claim 5, wherein: the surface of the movable plate (22) opposite to the waist plate (211) is provided with two vertical and symmetrical ribs (221), and the peripheral surface of the fixed rod (31) abutting against the movable plate (22) abuts against the side surface, far away from the other rib (221), of the rib (221).
7. A construction method of the assembled building U-shaped groove foundation according to claim 6, characterized in that: the method comprises the following steps:
s1, manufacturing a prefabricated part (1), wherein the method comprises the following steps:
s1.1, adjusting the relative position between a first embedded part (14) and a second embedded part (15), fixing by using a clamp, and then fixedly connecting the first embedded part (14) and the second embedded part (15) by welding a connecting steel bar (16);
s1.2, positioning by matching the reference surface and the inner wall of the template by taking the upper surface and the inclined surface of the first embedded part (14) and the inclined surface of the second embedded part (15) as the reference surface;
s1.3, pouring concrete into the template;
s1.4, demolding to prepare a prefabricated part (1);
s2, constructing a groove (100), comprising the following steps:
s2.1, positioning and paying off the groove (100);
s2.2, excavating a groove (100), wherein the wall of the groove (100) is an inclined surface;
s2.3, tamping the bottom of the groove (100), and uniformly paving gravel stones (103);
s3, assembling a U-shaped groove body, which comprises the following steps:
s3.1, arranging the prefabricated parts (1) at the bottom of the groove (100) along the length direction, and enabling the two adjacent prefabricated parts (1) to be in lap joint through matching between the upper inclined plane (13) and the lower inclined plane (12);
s3.2, raising and leveling the first prefabricated part (1) by using a level meter;
s3.3, vertically inserting a fixing rod (31) into the prefabricated part (1);
s3.4, vertically and downwards placing a fixing piece (21) above the two prefabricated pieces (1) to ensure the abutting fit of the fixing piece (21) and the fixed rod (31), and placing a movable plate (22) at the notch of the fixing piece (21) to ensure the abutting fit of the movable plate (22) and the fixed rod (31);
s3.5, welding a first nut (33) at a first through hole (222) on the movable plate (22), horizontally and sequentially penetrating a connecting screw rod (32) through a second through hole (213) of the waist plate (211) and the first through hole (222) of the movable plate (22), ensuring that the connecting screw rod (32) is in threaded connection with the first nut (33), welding a second nut (34) on the connecting screw rod (32), and ensuring that the end face of the second nut (34) is abutted against the surface, deviating from the movable plate (22), of the waist plate (211);
s3.6, rotating the connecting screw rod (32) to drive the movable plate (22) to move towards the waist plate (211) direction, so that one of the prefabricated parts (1) is driven to move close to the adjacent prefabricated part (1), when the prefabricated part (1) moves, the prefabricated part (1) moves along the length direction of the U-shaped groove and moves in height simultaneously through the matching of the lower inclined surface (12) on the prefabricated part and the upper inclined surface (13) of the other prefabricated part (1), and when the prefabricated part (1) moves upwards to be level with the bottom of the cavity groove (10) of the adjacent prefabricated part (1), the connecting screw rod (32) stops rotating;
s3.7, adding gravel (103) to the bottom of the groove (100) and the lower surface of the prefabricated part (1) along the groove wall of the groove (100);
s4, mounting of the wallboard (20): the wallboard (20) is arranged at the middle position of the cavity groove (10) through the connection of the wallboard (20) and the cylindrical steel component (2);
s5, pouring and shaping: and erecting an upper template (101) and a wedge-shaped template (102), and pouring concrete (104) in a gap between the wall plate (20) and the wall of the cavity groove (10) and a gap between the prefabricated member (1) and the wall of the groove (100).
8. The construction method of the assembled building U-shaped groove foundation according to claim 7, characterized in that: before step S3.1, the upper bevel (13) and the lower bevel (12) of the finished preform (1) are finished by means of 800-.
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| JP2002201798A (en) * | 2000-12-28 | 2002-07-19 | Daiwa House Ind Co Ltd | Support for concrete form, and supporting structure for the same |
| CN102535495B (en) * | 2012-02-07 | 2015-02-25 | 万华节能科技集团股份有限公司 | U-shaped groove base for prefabricated building and construction method thereof |
| CN203174770U (en) * | 2013-04-19 | 2013-09-04 | 深圳海龙建筑制品有限公司 | Connection structure of prefabricated column and construction site base and building |
| CN106013200B (en) * | 2016-06-29 | 2018-06-05 | 山东远博建筑科技有限公司 | A kind of prefabricated assembled strip footing and construction technology |
| CN205917710U (en) * | 2016-07-22 | 2017-02-01 | 中民筑友科技投资有限公司 | Connected node on basis |
| CN107338803B (en) * | 2017-07-13 | 2019-05-17 | 浙江永联建设工程股份有限公司 | A kind of assembly type building U-type groove basis and its construction method |
| CN107558483B (en) * | 2017-07-13 | 2019-07-26 | 浙江永联建设工程股份有限公司 | A kind of construction method of building foundation that installing wallboard |
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