CN113802598B - Concrete prefabricated part for building modular transformer substation and construction method thereof - Google Patents
Concrete prefabricated part for building modular transformer substation and construction method thereof Download PDFInfo
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- CN113802598B CN113802598B CN202111098293.8A CN202111098293A CN113802598B CN 113802598 B CN113802598 B CN 113802598B CN 202111098293 A CN202111098293 A CN 202111098293A CN 113802598 B CN113802598 B CN 113802598B
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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
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
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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
- E02D2250/00—Production methods
- E02D2250/0046—Production methods using prestressing techniques
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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Abstract
The invention relates to a modular transformer substation construction concrete prefabricated part and a construction method thereof, wherein the modular transformer substation construction concrete prefabricated part comprises two single-side foundation members which are arranged in a mirror image opposite mode, a foundation bridging beam which is bridged between the two single-side foundation members and a plurality of prestressed ribs; the prefabricated member is designed by adopting a modular assembly type component, so that the quality of a construction product can be better controlled, and the construction progress is greatly accelerated; the modular concrete prefabricated part prefabricated foundation assembling device has the advantages that assembling construction is carried out through auxiliary automatic assembling equipment in the construction process, automatic assembling, butt joint and installation can be carried out on the modular concrete prefabricated part assembled foundation, manpower is greatly saved, and risks and overall construction difficulty during lifting operation are reduced.
Description
Technical Field
The invention relates to the technical field of modular concrete prefabricated parts, and particularly provides a modular transformer substation construction concrete prefabricated part and a construction method thereof.
Background
The modular concrete prefabricated member is a product which is supposed to be produced in the field of building industrialization, and adopts an assembly type structure, wherein the assembly type structure means that part or all components of the structure are prefabricated in a factory and then transported to a construction site, and the prefabricated components are assembled into a structure system in a reliable connection mode. Compared with the traditional cast-in-place concrete, the cast-in-place concrete has a plurality of advantages, and particularly, from the perspective of construction safety, a prefabricating factory can provide a working environment which is relatively stable and has a higher safety factor than complex construction site operation for constructors; from the viewpoint of product quality, the quality and process of the concrete prefabricated part are better controlled through mechanized production; from the construction speed perspective, the standardization of the size and the characteristics of the prefabricated member can obviously accelerate the installation speed and the construction project progress; from the production cost perspective, compared with the traditional on-site molding, the mold in a factory can be repeatedly recycled, and the comprehensive cost is lower; mechanized production has less manual demands, and labor cost input is greatly reduced.
In the construction process of the transformer substation, the herringbone column framework is a herringbone welding steel structure and is used as a supporting carrier for installing and erecting a circuit, and in order to ensure the installation reliability of the herringbone column framework, the concrete foundation construction of the transformer substation including the herringbone column framework installation foundation is a core link of the whole construction of the transformer substation.
In the construction process of the traditional herringbone column framework installation foundation, the cast-in-place reinforced concrete stepped independent foundation is mostly adopted in the previous foundation construction, but with the rapid development of transformer substation construction, higher requirements are provided for the construction quality, construction period, engineering investment, energy conservation, environmental protection and the like of civil engineering, and the rapid development of transformer substation construction is restricted by the wet operation mode of the traditional cast-in-place mode. Therefore, the invention provides the fabricated modular concrete prefabricated part used as the herringbone column framework foundation in the construction of the transformer substation, and the higher requirements in the construction process of the existing transformer substation are met.
Disclosure of Invention
In order to solve the problems, the invention provides a concrete prefabricated part for building a modular substation and a construction method thereof, which can solve the problems in the background art.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: a precast concrete member for building a modular substation comprises two unilateral foundation members which are arranged oppositely in a mirror image manner, a foundation bridging beam which is bridged between the two unilateral foundation members and a plurality of prestressed tendons; the single-side base component comprises a main base component and two side clamping components, the main base component is of a stepped block structure, the two side clamping components are correspondingly attached to two L-shaped side walls of the main base component one by one and are arranged oppositely in a mirror image mode, the side clamping components are of a cuboid shape, and concave biting blocks are arranged on one sides of the side clamping components, which are in contact with the main base component; the basic bridging beam is cuboid, two groups of matching lugs are arranged on the basic bridging beam, each group of matching lugs is formed by two matching lugs which are arranged on two long-side walls of the basic bridging beam in a one-to-one corresponding mirror symmetry mode, the matching lugs are flush with the end parts of the basic bridging beam in the long-side extending direction, and the matching lugs are in concave-convex matching connection with the concave occlusion blocks; two the side presss from both sides the component with it is fixed through a plurality of prestressing tendons locking between the main basis component, basic bridging roof beam and two it is fixed through a plurality of prestressing tendons locking between the side presss from both sides the component.
In the process of assembling and constructing the modularized concrete prefabricated member, special auxiliary automatic assembling equipment is required to be used, and the device comprises two walking devices, an assembling bearing bracket, a bearing plate mechanism, an assembling executing mechanism and a side clamp adjusting mechanism, wherein the assembling bearing bracket, the bearing plate mechanism, the assembling executing mechanism and the side clamp adjusting mechanism are arranged between the two walking devices; the assembly support bracket comprises two end connecting frames which are arranged in a mirror symmetry mode and a frame-shaped foundation plate which is horizontally and fixedly connected between the two end connecting frames, and the two end connecting frames are fixedly arranged on the two walking devices in a one-to-one correspondence mode; the frame-shaped foundation plate is a rectangular plate structure with a rectangular frame in the center, and guide pressing plates are correspondingly arranged above the frame-shaped foundation plate at positions close to the two end connecting frames; the two opening and closing driving mechanisms are fixedly mounted on the two end connecting frames in a one-to-one correspondence mode, the two supporting plates are arranged between two guide gaps formed between the two guide pressing plates and the frame-shaped foundation plate in a sliding mode, and the two opening and closing driving mechanisms are used for driving the two supporting plates to move oppositely or reversely along the guide gaps; a plurality of balls are uniformly distributed and embedded on the upper plate surface of the bearing plate; the assembly executing mechanism comprises two guide rails which are oppositely arranged and horizontally fixed between the two opening and closing driving mechanisms, two pushing assemblies used for assembling and butting the foundation bridge beam and the two single-side foundation members are arranged between the two guide rails, and the two pushing assemblies are oppositely arranged in a mirror image manner; two it is provided with to correspond on the layer board the side presss from both sides guiding mechanism, two the side presss from both sides guiding mechanism is at the perpendicular to horizontal mirror symmetry sets up in the guide rail direction, two the side presss from both sides guiding mechanism and is used for basic bridging beam location and promotes the side and presss from both sides the component and pastes tight main foundation component.
Preferably, the opening and closing driving mechanism comprises a supporting frame fixedly mounted at the top end of the end connecting frame, a driving hydraulic cylinder is fixedly mounted at the top end of the supporting frame vertically, two connecting rods are hinged to the output end of the driving hydraulic cylinder, a position avoiding frame used for avoiding positions of the connecting rods in a moving mode is arranged on the guide pressing plate, and the two connecting rods penetrate through the position avoiding frame and the two bearing plates in a one-to-one hinged mode.
Preferably, the guide rail is fixedly connected between the two support frames; the pushing assembly comprises two pushing hydraulic cylinders correspondingly and horizontally fixedly installed on two sides of the supporting frame, a vertically arranged pushing plate, two side clamp guide plates and two side clamp springs; the pushing plate is provided with two sliding lugs which are in one-to-one corresponding sliding fit with the two guide rails and are arranged in a penetrating mode, the two sliding lugs are fixedly installed at the output ends of the two pushing hydraulic cylinders in one-to-one correspondence mode, the two side clamp guide plates are horizontally arranged on the pushing plate in a sliding mode, the two side clamp guide plates are horizontally arranged oppositely and are located on one side, opposite to the surface of the pushing hydraulic cylinder, of the pushing plate, one ends of the two side clamp springs are connected to the pushing plate, and the other ends of the two side clamp springs are fixedly connected to the two side clamp guide plates in one-to-one correspondence mode; the gap between the two side clamp guide plates is equal to the width of the two L-shaped side wall surfaces of the main base member.
Preferably, the side clamp adjusting mechanism comprises a fixed plate vertically and fixedly mounted on the bearing plate, the fixed plate is located at the plate edge position, close to the side end of the frame-shaped base plate, of the bearing plate, a side clamp hydraulic cylinder is horizontally and fixedly mounted on the fixed plate, the output direction of the side clamp hydraulic cylinder is perpendicular to the guide direction of the guide rail, the output end of the side clamp hydraulic cylinder is connected with a stroke plate, the stroke plate comprises a clamping plate part fixedly connected with the output end of the side clamp hydraulic cylinder and two L-shaped plates horizontally and symmetrically arranged at two ends of the clamping plate part, the clamping plate part is arranged in the middle relative to the two pushing assemblies, and elastic side clamp assemblies are correspondingly arranged on straight plates, parallel to the clamping plate part, of the two L-shaped plates; two of the side clamp guide plates in the pushing assembly are located between two of the elastic side clamp assemblies at opposite positions in the two side clamp adjusting mechanisms.
Preferably, elasticity side presss from both sides the subassembly and includes the guide arm of a plurality of horizontal slidable mounting on the L template, the guide arm axial with the output direction of side clamp pneumatic cylinder is parallel, and is a plurality of the guide arm towards the common fixed mounting of one end of side clamp guide board has the roller frame, the cover is equipped with the pressure spring on the guide arm, pressure spring both ends fixed connection be in the L template with on the roller frame, vertical rotation installs a plurality of edges on the roller frame guide rail direction align to grid's double-layered roller.
Preferably, the walking device comprises a walking frame, two walking wheels are arranged on the walking frame, and the end connecting frame is fixedly arranged on the walking frame; the bottom end of the walking frame is provided with a supporting assembly, and the supporting assembly comprises a supporting hydraulic cylinder vertically fixed at the bottom end of the walking frame and a floor grabbing plate fixed at the output end of the supporting hydraulic cylinder.
Preferably, the bottom of bearing board is provided with stretch to the protruding strip of rectangle frame, protruding strip is followed the guide rail direction extends, just protruding strip aligns and sets up keep away from on the bearing board the sideline position of frame shape foundatin plate side, fixed mounting has a plurality of edges on the protruding strip guide rail direction evenly distributed's bracing piece, bracing piece axial perpendicular to the guide rail direction, just the bracing piece with frame shape foundatin plate horizontal sliding fit.
Preferably, the top of main basis component is provided with pre-buried ring flange, be provided with the pre-buried bolt of a plurality of annular distributions on the pre-buried ring flange.
In addition, the invention also provides a construction method for building the concrete prefabricated member by the modular transformer substation, which comprises the following steps:
s1, digging an embedded foundation pit on the ground of the designed installation position of the herringbone column framework in the transformer substation, and tamping and leveling the pit surface of the embedded foundation pit;
s2, transferring all components of the fabricated foundation prefabricated part to be constructed, which is used for fixedly mounting the herringbone column framework, to the vicinity of the embedded foundation pit;
s3, hoisting each component to a corresponding position of auxiliary automatic assembly equipment through crane equipment, automatically butting and assembling all the components through the equipment, and locking, connecting and fixing the components through a plurality of prestressed tendons after the assembly and butting are finished;
s4, transferring the herringbone column framework assembled foundation which is assembled and assembled to the upper part of the pre-buried foundation pit through auxiliary automatic assembling equipment, and then integrally hoisting the assembled foundation to the foundation pit through crane equipment and horizontally placing the foundation on the pit surface;
and S5, pouring concrete slurry into the prestressed hole through which the prestressed reinforcement passes, and backfilling the embedded foundation pit after the slurry is solidified, so that the whole assembly type foundation is embedded in the foundation pit.
The technical scheme has the following advantages or beneficial effects:
1. the invention provides a modular transformer substation construction concrete prefabricated part, which adopts a modular assembly type component design, can better control the quality of a construction product, greatly quickens the construction progress, adopts the concave-convex occlusion design of two single-side foundation components and a foundation bridging beam, can form a complete foundation structure after being assembled through a reliable connection mode, enhances the integral connection of the foundation bridging beam, can accurately control the span distance of the two single-side foundation components, and is favorable for standardized construction.
2. The invention provides auxiliary automatic assembling equipment, which can be used for automatically assembling, butting and installing a modular concrete prefabricated part assembled foundation in the construction process of a transformer substation, greatly saves labor, reduces the risk and the whole construction difficulty during lifting operation, solves the problems of uneven ground of a construction site and difficult butting caused by a soft soil surface on one hand, and solves the problems of high labor cost investment, high butting and assembling construction difficulty, low assembling efficiency and construction safety risk during actual installation and construction on the other hand.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The drawings, in which like numerals refer to like parts throughout the several views and which are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a schematic perspective view of a prefabricated concrete member for building a modular substation according to the present invention in an assembled state.
Fig. 2 is a schematic diagram of an overall explosion structure of a concrete prefabricated member for building a modular substation provided by the invention.
Fig. 3 is a perspective view of the auxiliary automatic assembling apparatus at one viewing angle.
Fig. 4 is a perspective view of the auxiliary automatic assembling apparatus from another perspective.
Fig. 5 is a front view of the auxiliary automatic assembly apparatus.
Fig. 6 is a side view of the auxiliary automatic assembly apparatus.
Fig. 7 is a schematic perspective view of the auxiliary automatic assembly device in a working state.
Fig. 8 is a plan view of the auxiliary automatic assembling apparatus in an operating state.
Fig. 9 is a flow chart of a method for constructing a concrete prefabricated member by a modular substation provided by the invention.
In the figure: 00. an assembled foundation; 01. a one-sided base member; 02. a main base member; 021. pre-burying a flange plate; 022. embedding bolts in advance; 03. a side clamp member; 031. a concave bite block; 04. a foundation bridging beam; 041. fitting the projection; 05. prestressed tendons; 06. a pre-stressed hole; 1. a traveling device; 11. a traveling frame; 12. a traveling wheel; 13. a support assembly; 131. a support hydraulic cylinder; 132. grabbing a floor; 2. assembling a support bracket; 21. an end connecting frame; 22. a frame-shaped foundation plate; 221. a guide pressure plate; 222. avoiding the position frame; 3. a bearing plate mechanism; 31. an opening/closing drive mechanism; 311. a support frame; 312. driving the hydraulic cylinder; 313. a connecting rod; 32. a support plate; 321. a ball bearing; 322. a raised strip; 323. a support bar; 4. assembling an actuating mechanism; 41. a guide rail; 42. a pushing assembly; 43. pushing the hydraulic cylinder; 44. a push plate; 441. a sliding lug; 45. a side nip guide plate; 46. a side clamp spring; 5. a side clamp adjustment mechanism; 51. a fixing plate; 52. a side clamping hydraulic cylinder; 53. a stroke plate; 531. a nip portion; 532. an L-shaped plate; 54. an elastic side clamp assembly; 541. a guide bar; 542. a roller frame; 543. a pressure spring; 544. and (4) a clamping roller.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for the purpose of providing those skilled in the art with a more complete, accurate and thorough understanding of the concept and technical solution of the present invention, and to facilitate the implementation thereof, but not to limit the present invention.
As shown in fig. 1 and 2, a modular substation construction concrete prefabricated member comprises two single-side foundation members 01 arranged oppositely in a mirror image manner, a foundation bridging beam 04 bridging between the two single-side foundation members 01, and a plurality of prestressed tendons 05; the single-side base member 01 comprises a main base member 02 and two side clamp members 03, wherein the main base member 02 is of a stepped block structure, an embedded flange 021 is arranged at the top end of the main base member 02, and a plurality of embedded bolts 022 distributed annularly are arranged on the embedded flange 021; the two side clamping members 03 are correspondingly attached to two L-shaped side walls of the main base member 02 one by one and are arranged in a mirror image opposite mode, the side clamping members 03 are cuboid, and a concave engagement block 031 is arranged on one side, in contact with the main base member 02, of each side clamping member 03; the basic bridging beam 04 is rectangular, two groups of matching bumps 041 are arranged on the basic bridging beam 04, each group of matching bumps 041 is formed by two matching bumps 041 which are arranged on the two long-edge side walls of the basic bridging beam 04 in a one-to-one mirror symmetry manner, the matching bumps 041 are flush with the end part of the basic bridging beam 04 in the long-edge extending direction, and the matching bumps 041 are in concave-convex matching connection with the concave occlusion blocks 031; the two side clamping members 03 and the main foundation member 02 are locked and fixed through a plurality of prestressed tendons 05, and the foundation bridging beam 04 and the two side clamping members 03 are locked and fixed through a plurality of prestressed tendons 05.
For convenience of description, in the present embodiment, the entire structure of the modular substation construction concrete preform composed of the two single-sided foundation members 01 and the foundation bridge beam 04 will be simply referred to as the fabricated foundation 00.
The main foundation component 02, the side clamp component 03 and the foundation bridging beam 04 are all reinforced concrete prefabricated components which are cast and molded by molds in a prefabrication factory, steel bar frameworks of the main foundation component 02, the side clamp component 03 and the foundation bridging beam 04 are rolled and welded according to the main body structures of the steel bar frameworks, and hooks convenient to lift are reserved in the steel bar frameworks; in a main foundation component 02, an embedded flange 021 is welded on a steel reinforcement framework, and a plurality of embedded bolts 022 are inserted into a flange end of an oblique column of a herringbone column framework and locked by nuts; prestressed holes 06 are reserved in the main foundation component 02, the side clamp component 03 and the foundation bridge 04 in the pouring forming process, after the assembled foundation 00 is assembled in a butt joint manner, the prestressed tendon 05 passes through the prestressed hole 06 of one of the side clamping members 03, the prestressed hole 06 of the main foundation member 02 and the prestressed hole 06 of the other side clamping member 03 in sequence, thereby locking the two side clamp members 03 to the main base member 02, and in addition, the tendon 05 is sequentially passed through the prestressed hole 06 of one of the side clamp members 03, the prestressed hole 06 of the foundation bridge 04, and the prestressed hole 06 of the other side clamp member 03, therefore, the two side clamping members 03 and the foundation bridge 04 are locked and fixed, finally, concrete slurry is poured into the prestressed holes 06 through which the prestressed tendons 05 penetrate, and after solidification, the whole assembly type foundation 00 forms a complete whole.
In the process of assembling and constructing the modularized concrete prefabricated member, special auxiliary automatic assembling equipment is required, and the device comprises two walking devices 1, an assembling support bracket 2 arranged between the two walking devices 1, a support plate mechanism 3, an assembling executing mechanism 4 and a side clamp adjusting mechanism 5.
As shown in fig. 3, the traveling device 1 includes a traveling frame 11, two traveling wheels 12 are mounted on the traveling frame 11, and the two traveling wheels 12 can steer; the bottom end of the walking frame 11 is provided with a supporting component 13, and the supporting component 13 comprises a supporting hydraulic cylinder 131 vertically fixed at the bottom end of the walking frame 11 and a floor grabbing plate 132 fixed at the output end of the supporting hydraulic cylinder 131. Two walking devices 1 are arranged, so that the whole equipment can move under the traction of a tractor; the purpose of assembling the supporting assemblies 13 on the two traveling devices 1 is to support the grabbing floor 132 on the ground by synchronously starting the two supporting hydraulic cylinders 131 when the equipment is in a working standing state, so that the equipment is stably supported and prevented from moving back and forth on the ground.
As shown in fig. 3, 4, 7 and 8, the assembly support bracket 2 includes two end connection frames 21 arranged in mirror symmetry and a frame-shaped base plate 22 horizontally welded between the two end connection frames 21, and the two end connection frames 21 are welded to the two traveling frames 11 in a one-to-one correspondence; the frame-shaped foundation plate 22 is of a rectangular plate structure with a rectangular frame in the center, when the assembly of the assembly type foundation 00 is completed, the assembly type foundation 00 is lifted to a foundation pit through crane equipment and penetrates through the rectangular frame, and guide pressing plates 221 are correspondingly arranged above the frame-shaped foundation plate 22 at positions close to the two end connecting frames 21; the whole assembly support bracket 2 realizes bridging of the two running gears 1, can provide lower support for the two support plates 32, and can provide horizontal sliding guide for the two support plates.
As shown in fig. 3, 4, 5, 6 and 7, the supporting plate mechanism 3 includes two opening and closing driving mechanisms 31 and two supporting plates 32 disposed between the two opening and closing driving mechanisms 31, the two opening and closing driving mechanisms 31 are fixedly mounted on the two end connecting frames 21 in a one-to-one correspondence manner, the opening and closing driving mechanism 31 includes a supporting frame 311 welded on the top end of the end connecting frame 21, a driving hydraulic cylinder 312 is vertically and fixedly mounted on the top end of the supporting frame 311 through a bolt, the output end of the driving hydraulic cylinder 312 is hinged with two connecting rods 313, a position avoiding frame 222 for avoiding the movement of the connecting rods 313 is disposed on the guiding pressing plate 221, and the two connecting rods 313 pass through the position avoiding frame 222 and are hinged with the two supporting plates 32 in a one-to-one correspondence manner; the two supporting plates 32 are arranged in a sliding manner between two guide gaps formed between the two guide pressing plates 221 and the frame-shaped base plate 22, and the two opening and closing driving mechanisms 31 are used for driving the two supporting plates 32 to move oppositely or move backwards along the guide gaps; a plurality of balls 321 are uniformly distributed and embedded on the upper plate surface of the supporting plate 32; the bottom of bearing board 32 is provided with the protruding strip 322 that stretches to the rectangle frame, and protruding strip 322 extends along guide rail 41 direction, and protruding strip 322 aligns and sets up the sideline position of keeping away from frame shape foundatin plate 22 side on bearing board 32, and the welding has a plurality of bracing pieces 323 along guide rail 41 direction evenly distributed on protruding strip 322, and bracing piece 323 axial perpendicular to guide rail 41 direction, and bracing piece 323 and frame shape foundatin plate 22 horizontal sliding fit.
The assembly process of each component of the assembly type foundation 00 is completed on the two bearing plates 32, on one hand, the two bearing plates 32 provide a hard bearing plane required in the assembly process of the assembly type foundation 00 under a complex construction ground environment, alignment assembly is convenient, on the other hand, the balls 321 are uniformly distributed on the bearing plates 32, although the components of the assembly type foundation 00 are large in mass, the components are directly placed on a plane formed by the balls 321 during assembly, the balls 321 can provide auxiliary rolling, and therefore moving alignment assembly of the components can be easily achieved, and automatic assembly can be achieved. In addition, when the two support plates 32 are in the closed state, the part of the support plate 32 above the rectangular frame of the frame-shaped base plate 22 is basically in a suspended and unsupported state, but the arrangement position of the protruding strips 322 and the sliding fit of the plurality of support rods 323 and the frame-shaped base plate 22 greatly enhance the support effect on the whole support plate 32, so that the support plate 32 can bear the bearing capacity of larger mass when the assembly type base 00 is assembled.
As shown in fig. 3 and 6, the assembly actuator 4 includes two guide rails 41 that are oppositely disposed and horizontally fixed between the two opening/closing driving mechanisms 31, two pushing assemblies 42 for assembling and butting the foundation bridge 04 and the two single-sided foundation members 01 are disposed between the two guide rails 41, and the two pushing assemblies 42 are arranged in a mirror image manner; the guide rail 41 is welded between the two support frames 311; the pushing assembly 42 comprises two pushing hydraulic cylinders 43 correspondingly and horizontally fixedly installed at two sides of the supporting frame 311, a pushing plate 44 vertically arranged, two side clamp guide plates 45 and two side clamp springs 46; the pushing plate 44 is provided with two sliding lugs 441 which are in one-to-one corresponding sliding fit with the two guide rails 41 and are arranged in a penetrating manner, the two sliding lugs 441 are fixedly installed at the output ends of the two pushing hydraulic cylinders 43 in one-to-one correspondence, the two side clamp guide plates 45 are horizontally arranged on the pushing plate 44 in a sliding manner, the two side clamp guide plates 45 are horizontally arranged in an opposite manner and are positioned on one side of the pushing plate 44, which faces away from the pushing hydraulic cylinders 43, one ends of the two side clamp springs 46 are welded on the pushing plate 44, and the other ends of the two side clamp springs 46 are welded on the two side clamp guide plates 45 in one-to-one correspondence; the gap between the two side clamp guide plates 45 is equal to the width of the two L-shaped side wall surfaces of the main base member 02, and the upper ends of the side clamp guide plates 45 are chamfered.
When assembling the fabricated foundation 00, the whole equipment is pulled by a tractor to move to the flat ground, then the two supporting assemblies 13 are started, so that the equipment is supported by the ground, then the two main foundation components 02 are lifted in sequence by a crane equipment to pass through the two sets of side clamp guiding plates 45 one by one, so that the main foundation components 02 pass through between the two oppositely arranged side clamp guiding plates 45 and are finally placed on the two bearing plates 32, because the distance between the two side clamp guiding plates 45 is equal to the width of the two L-shaped side wall surfaces of the main foundation components 02, under the elastic clamping of the two side clamp springs 46, the main foundation components 02 are well positioned between the two side clamp guiding plates 45, in addition, it should be noted that after the main foundation components 02 are placed on the bearing plates 32, the side clamp guiding plates 45 only clamp the cube structure of the upper half part of the main foundation components 02, therefore, the subsequent side clamp member 03 and the main base member 02 do not interfere with each other in contact with each other.
As shown in fig. 3, 4, 5, 7 and 8, the two supporting plates 32 are correspondingly provided with side clamp adjusting mechanisms 5, the two side clamp adjusting mechanisms 5 are horizontally arranged in a mirror symmetry manner in a direction perpendicular to the guiding direction of the guide rail 41, and the two side clamp adjusting mechanisms 5 are used for positioning the foundation bridge 04 and pushing the side clamp member 03 to be attached to the main foundation member 02; the side clamp adjusting mechanism 5 comprises a fixing plate 51 vertically welded on the supporting plate 32, the fixing plate 51 is positioned at the plate edge position on the supporting plate 32 close to the side end of the frame-shaped base plate 22, a side clamp hydraulic cylinder 52 is horizontally and fixedly installed on the fixing plate 51 through a bolt, the output direction of the side clamp hydraulic cylinder 52 is perpendicular to the guide direction of the guide rail 41, the output end of the side clamp hydraulic cylinder 52 is connected with a stroke plate 53, the stroke plate 53 comprises a clamping plate part 531 fixedly connected with the output end of the side clamp hydraulic cylinder 52 and two L-shaped plates 532 horizontally and symmetrically welded at the two ends of the clamping plate part 531, the clamping plate part 531 is centrally arranged relative to the two pushing assemblies 42, the clamping plate part 531 is used for centrally clamping and positioning the base bridging beam 04, elastic side clamp assemblies 54 are correspondingly arranged on the straight plates parallel to the clamping plate part 531 on the two L-shaped plates 532, and the elastic side clamp assemblies 54 are used for pushing the side clamp members 03 to be tightly attached to the main base member 02; the two side clamp guide plates 45 in the pushing assembly 42 are located between the two elastic side clamp assemblies 54 in opposite positions in the two side clamp adjusting mechanisms 5; the elastic side clamp assembly 54 comprises a plurality of guide rods 541 horizontally and slidably mounted on the L-shaped plate 532, the axial direction of each guide rod 541 is parallel to the output direction of the side clamp hydraulic cylinder 52, a plurality of guide rods 541 are welded with a roller frame 542 towards one end of the side clamp guide plate 45, a pressure spring 543 is sleeved on each guide rod 541, two ends of each pressure spring 543 are welded on the L-shaped plate 532 and the roller frame 542, and a plurality of clamp rollers 544 uniformly arranged along the direction of the guide rail 41 are vertically and rotatably mounted on the roller frame 542.
After the two main foundation members 02 are lifted and positioned, the two main foundation members 02 can be used as the approaching reference of the two side clamping members 03 in the single-side foundation member 01, and then the foundation bridging beam 04 and the four side clamping members 03 are lifted and positioned on the bearing plate 32 by the crane equipment according to the distribution position of each member of the assembly foundation 00 shown in fig. 1, at this time, because the rear side clamping member 03 and the foundation bridging beam 04 are lifted and positioned only at approximate positions by the crane equipment, the position can be adjusted by the matching of the two side clamping adjusting mechanisms 5, specifically, the two side clamping hydraulic cylinders 52 are synchronously started to enable the two stroke plates 53 to move towards each other, and the foundation bridging beam 04 is finally clamped between the two clamping plate portions 531 to realize central positioning under the auxiliary rolling of the balls 321 along with the movement, in addition, under the pushing of the four rows of clamping rollers 544, the four side clamping members 03 will automatically move towards the main base member 02, and under the action of the elastic force of the compression spring 543, the clamping rollers 544 finally make the side clamping members 03 and the main base member 02 close to each other by clamping; after the centering of the base bridge 04 and the tightening of the side clamp 03 with reference to the main base member 02 is completed, the mating protrusion 041 will be in a position where it can be inserted in alignment with the oppositely positioned female bite block 031.
The position adjustment of the components is realized through the two side clamp adjusting mechanisms 5, the assembling executing mechanism 4 is started to carry out assembling butt joint under the condition that the side clamp state of the two side clamp adjusting mechanisms 5 is kept, specifically, the pushing hydraulic cylinders 43 in the two pushing assemblies 42 are synchronously started, so that the two pushing plates 44 slide oppositely under the guiding of the two guide rails 41, the two side clamp components 03 in the single-side base component 01 are automatically aligned with the main base component 02 under the pushing of the pushing plates 44 and the matching rolling of the clamp rollers 544, and the basic bridging beam 04 is finally matched and inserted into the single-side base components 01 at two sides to realize butt joint assembling along with the continuous pushing.
After the assembly is finished, the two side clamp adjusting mechanisms 5 are loosened, the whole assembly type foundation 00 is locked and fixed by the prestressed tendons 05 penetrating through the prestressed holes 06, and after the fixation is finished, the whole device is pulled by a tractor to move to the upper part of the pre-buried foundation pit, then the whole assembly type foundation 00 is slightly hoisted by a crane device, so as not to make compressive contact with the support plate 32, and then, the two drive cylinders 312 are synchronously actuated to extend the output ends, so that the two bearing plates 32 are opened under the drive of the two groups of connecting rods 313, then the whole assembly type foundation 00 is placed on the surface of the pre-buried foundation pit through the rectangular frame of the frame-shaped foundation plate 22 by the crane equipment, and finally, concrete slurry is poured into each prestressed hole 06, the foundation pit is backfilled after the slurry is solidified, the fabricated foundation 00 is embedded in the foundation pit, and construction and installation of the fabricated foundation 00 are finally completed.
The auxiliary automatic assembling equipment for construction and installation of the assembly foundation 00 has the advantages that the equipment can be used for automatically assembling, butting and installing the assembly foundation 00, so that labor is greatly saved, risks and construction difficulty during lifting operation are reduced, the problems of uneven ground of a construction site and butting difficulty caused by soft soil surface are solved, and the problems of high labor cost investment, high butting and assembling construction difficulty, low assembling efficiency and construction safety risk during actual installation and construction are solved.
As shown in fig. 9, in addition, the invention also provides a construction method for building the concrete prefabricated member in the modular substation, which comprises the following steps:
s1, digging an embedded foundation pit on the ground of the designed installation position of the herringbone column framework in the transformer substation, and tamping and leveling the pit surface of the embedded foundation pit;
s2, transferring all components of the fabricated foundation 00 prefabricated part to be constructed for fixedly mounting the herringbone column framework to the vicinity of the embedded foundation pit;
s3, hoisting each component to a corresponding position of auxiliary automatic assembly equipment through crane equipment, automatically butting and assembling all the components through the equipment, and locking, connecting and fixing the components through a plurality of prestressed ribs 05 after the assembly and butting are completed;
s4, transferring the herringbone column framework assembled foundation 00 which is assembled and assembled to the upper side of the pre-buried foundation pit through auxiliary automatic assembling equipment, and then integrally hoisting the assembled foundation 00 to the foundation pit through crane equipment and horizontally placing the foundation pit on the surface of the pit;
s5, concrete slurry is poured into the prestressed holes 06 through which the prestressed tendons 05 penetrate, and the embedded foundation pit is backfilled after the slurry is solidified, so that the whole assembly type foundation 00 is embedded in the foundation pit.
It should be understood by those skilled in the art that the modifications can be implemented by combining the prior art and the above embodiments, and the detailed description is omitted here. Such variations do not affect the essence of the present invention and are not described herein.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; it will be understood by those skilled in the art that various changes and modifications may be made, or equivalents may be modified, without departing from the spirit of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (8)
1. The utility model provides a modular substation builds concrete prefabricated part which characterized in that: the single-side foundation member comprises two single-side foundation members (01) which are arranged oppositely in a mirror image mode, a foundation bridge beam (04) which is bridged between the two single-side foundation members (01) and a plurality of prestressed tendons (05); the single-side base member (01) comprises a main base member (02) and two side clamp members (03), the main base member (02) is of a stepped block structure, the two side clamp members (03) are correspondingly attached to two L-shaped side walls of the main base member (02) in a one-to-one mode and are arranged oppositely in a mirror image mode, the side clamp members (03) are of a cuboid shape, and a concave occlusion block (031) is arranged on one side, in contact with the main base member (02), of each side clamp member (03); the basic bridging beam (04) is cuboid, two groups of matching lugs (041) are arranged on the basic bridging beam (04), each group of matching lugs (041) is formed by two matching lugs (041) which are arranged on two long-edge side walls of the basic bridging beam (04) in a one-to-one mirror symmetry manner, the matching lugs (041) are flush with the end parts of the basic bridging beam (04) in the long-edge extending direction, and the matching lugs (041) are in concave-convex matching connection with the concave occlusion blocks (031); the two side clamp members (03) and the main foundation member (02) are locked and fixed through a plurality of prestressed tendons (05), and the foundation bridging beam (04) and the two side clamp members (03) are locked and fixed through a plurality of prestressed tendons (05);
in the process of assembling and constructing the modularized concrete prefabricated member, special auxiliary automatic assembling equipment is required to be used, and the equipment comprises two walking devices (1), an assembling support bracket (2) arranged between the two walking devices (1), a support plate mechanism (3), an assembling execution mechanism (4) and a side clamp adjusting mechanism (5); the assembly support bracket (2) comprises two end connecting frames (21) which are arranged in a mirror symmetry mode and a frame-shaped foundation plate (22) which is horizontally and fixedly connected between the two end connecting frames (21), and the two end connecting frames (21) are fixedly arranged on the two walking devices (1) in a one-to-one correspondence mode; the frame-shaped foundation plate (22) is of a rectangular plate structure with a rectangular frame in the center, and a guide pressure plate (221) is correspondingly arranged above the frame-shaped foundation plate (22) at a position close to the two end connecting frames (21); the bearing plate mechanism (3) comprises two opening and closing driving mechanisms (31) and two bearing plates (32) arranged between the two opening and closing driving mechanisms (31), the two opening and closing driving mechanisms (31) are fixedly arranged on the two end connecting frames (21) in a one-to-one correspondence mode, the two bearing plates (32) are arranged between two guide gaps formed between the two guide pressing plates (221) and the frame-shaped base plate (22) in a sliding mode, and the two opening and closing driving mechanisms (31) are used for driving the two bearing plates (32) to move in the opposite direction or in the opposite direction along the guide gaps; a plurality of balls (321) are uniformly distributed and embedded on the upper plate surface of the bearing plate (32); the assembly executing mechanism (4) comprises two guide rails (41) which are oppositely arranged and horizontally fixed between the two opening and closing driving mechanisms (31), two pushing assemblies (42) used for assembling and butting a foundation bridge beam (04) and two single-side foundation members (01) are arranged between the two guide rails (41), and the two pushing assemblies (42) are arranged oppositely in a mirror image mode; two it is provided with to correspond on bearing board (32) side clamp guiding mechanism (5), two side clamp guiding mechanism (5) is at the perpendicular to horizontal mirror symmetry sets up in guide rail (41) direction, two side clamp guiding mechanism (5) are used for basic bridging roof beam (04) location and promote that side clamp component (03) pastes tight main basis component (02).
2. A modular substation construction concrete preform according to claim 1, characterized in that: opening and closing actuating mechanism (31) is including fixed mounting support frame (311) on end connection frame (21) top, the vertical fixed mounting in top of support frame (311) has drive pneumatic cylinder (312), the output of drive pneumatic cylinder (312) articulates there are two connecting rods (313), be provided with on direction clamp plate (221) and be used for connecting rod (313) move and avoid a position frame (222) of keeping away the position, two connecting rod (313) pass keep away position frame (222) and two the layer board (32) one-to-one articulates the setting.
3. A modular substation construction concrete preform according to claim 2, characterized in that: the guide rail (41) is fixedly connected between the two support frames (311); the pushing assembly (42) comprises two pushing hydraulic cylinders (43) which are correspondingly and horizontally fixedly installed on two sides of the supporting frame (311), a pushing plate (44) which is vertically arranged, two side clamp guide plates (45) and two side clamp springs (46); the pushing plate (44) is provided with two sliding lugs (441) which are in one-to-one corresponding sliding fit with the two guide rails (41) and are arranged in a penetrating mode, the two sliding lugs (441) are fixedly installed at the output ends of the two pushing hydraulic cylinders (43) in one-to-one correspondence, the two side clamp guide plates (45) are horizontally arranged on the pushing plate (44) in a sliding mode, the two side clamp guide plates (45) are horizontally arranged in an opposite mode and are located on one side, opposite to the pushing hydraulic cylinders (43), of the pushing plate (44), one ends of the two side clamp springs (46) are connected to the pushing plate (44), and the other ends of the two side clamp springs (46) are fixedly connected to the two side clamp guide plates (45) in one-to-one correspondence; the gap between the two side nip guide plates (45) is equal to the width of the two L-shaped side wall surfaces of the main base member (02).
4. A modular substation construction concrete preform according to claim 3, characterized in that: the side clamp adjusting mechanism (5) comprises a fixing plate (51) vertically and fixedly arranged on the bearing plate (32), the fixing plate (51) is positioned at the plate edge position of the supporting plate (32) close to the side end of the frame-shaped base plate (22), a side clamping hydraulic cylinder (52) is horizontally and fixedly arranged on the fixed plate (51), the output direction of the side clamping hydraulic cylinder (52) is vertical to the guide direction of the guide rail (41), the output end of the side clamping hydraulic cylinder (52) is connected with a stroke plate (53), the stroke plate (53) comprises a clamping plate part (531) fixedly connected with the output end of the side clamping hydraulic cylinder (52) and two L-shaped plates (532) horizontally and symmetrically arranged at two ends of the clamping plate part (531), the clamping plate part (531) is arranged in the middle relative to the two pushing components (42), and elastic side clamping components (54) are correspondingly arranged on straight plates parallel to the clamping plate part (531) on the two L-shaped plates (532); two of the side clamp guide plates (45) in the pushing assembly (42) are located between two of the resilient side clamp assemblies (54) in opposite positions in two of the side clamp adjustment mechanisms (5).
5. A modular substation construction concrete preform according to claim 4, characterized in that: elasticity side presss from both sides subassembly (54) includes guide arm (541) of a plurality of horizontal slip installations on L template (532), guide arm (541) axial with the output direction parallel of side clamp pneumatic cylinder (52), a plurality of guide arm (541) towards the common fixed mounting of one end of side clamp guide board (45) has roller frame (542), the cover is equipped with pressure spring (543) on guide arm (541), pressure spring (543) both ends fixed connection be in L template (532) with on roller frame (542), vertical rotation installs a plurality of edges on roller frame (542) guide rail (41) direction align to grid's double-layered roller (544).
6. A modular substation construction concrete preform according to claim 1, characterized in that: the walking device (1) comprises a walking frame (11), two walking wheels (12) are mounted on the walking frame (11), and the end connecting frame (21) is fixedly mounted on the walking frame (11); the bottom end of the walking frame (11) is provided with a supporting component (13), and the supporting component (13) comprises a supporting hydraulic cylinder (131) vertically fixed at the bottom end of the walking frame (11) and a floor grabbing plate (132) fixed at the output end of the supporting hydraulic cylinder (131).
7. A modular substation construction concrete preform according to claim 1, characterized in that: the bottom of bearing board (32) is provided with stretch to protruding strip (322) of rectangle frame, protruding strip (322) are followed guide rail (41) direction is extended, just protruding strip (322) align to set up keep away from on bearing board (32) the sideline position of frame shape foundatin plate (22) side, fixed mounting has a plurality of edges on protruding strip (322) guide rail (41) direction evenly distributed's bracing piece (323), bracing piece (323) axial perpendicular to guide rail (41) direction, just bracing piece (323) with frame shape foundatin plate (22) horizontal sliding fit.
8. A modular substation construction concrete preform according to claim 1, characterized in that: the top of main basis component (02) is provided with pre-buried ring flange (021), be provided with a plurality of annular pre-buried bolts (022) that distribute on pre-buried ring flange (021).
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| CN202111098293.8A CN113802598B (en) | 2021-09-18 | 2021-09-18 | Concrete prefabricated part for building modular transformer substation and construction method thereof |
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