CN112031219A - Groove type embedded part and manufacturing method thereof - Google Patents
Groove type embedded part and manufacturing method thereof Download PDFInfo
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- CN112031219A CN112031219A CN202010458033.6A CN202010458033A CN112031219A CN 112031219 A CN112031219 A CN 112031219A CN 202010458033 A CN202010458033 A CN 202010458033A CN 112031219 A CN112031219 A CN 112031219A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
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- 238000004458 analytical method Methods 0.000 description 2
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- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241001391944 Commicarpus scandens Species 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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/88—Curtain walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B1/4107—Longitudinal elements having an open profile, with the opening parallel to the concrete or masonry surface, i.e. anchoring rails
Abstract
The invention provides a groove type embedded part and a manufacturing method thereof, and belongs to the technical field of building connection. The novel steel wire rope groove comprises a groove body, wherein the groove body is long in strip shape, the cross section of the groove body is C-shaped, a T-shaped groove for fixedly connecting a T-shaped bolt in a sliding adjusting mode is formed in the groove body, an anchor foot rod is arranged on the bottom surface, away from an opening, of the groove body and welded or riveted on the groove body, and an expansion part is arranged at one end, away from the groove body, of the anchor foot rod. The technical problem that anchor feet of embedded parts are easy to loosen from a groove body is solved.
Description
Technical Field
The invention belongs to the technical field of building connection, and relates to a groove type embedded part.
Background
The common connecting piece of slot type embedded part in the existing building connection technology solves the problems of unstable mechanical property, poor bearing capacity and the like of the existing embedded part for the building due to the welding process of the embedded part. The channel material is mostly ordinary carbon steel, also has some stainless steel material, has multiple specification models. The manufacturing process generally adopts hot rolling and cold roll forming processes. The channel is embedded in the concrete at a required position, the opening of the channel is outward, and the upper surface and the outer surface of the concrete are in the same plane. The device has the remarkable use characteristics that the device can be flexibly, conveniently and quickly installed and connected in a use range, such as a contact net, a pipeline and the like, and the device is widely applied.
In order to enhance the bonding strength of the trough body in concrete, an expansion part or a special-shaped anchor foot rod is arranged on the trough body to increase the bonding capacity of the trough body and the concrete. For example, the chinese patent document discloses an anchor rail [2009102534515] comprising a rail body provided with a plurality of perforations in which are disposed rivet nuts, the fixing sections into which the rivet nuts are respectively inserted through the perforations being flared, in particular crimped, and the rivet nut body being disposed substantially within the rail body, the rivet nuts being threaded with outwardly extending threaded anchor elements.
In the scheme, the arrangement of the anchor element improves the combination capacity of the trough body and the concrete body, but in the scheme, the trough body is connected with the anchor element through threads, and the threads are easy to corrode and lose efficacy in a humid environment after being buried in the concrete. After the screw thread corrosion became invalid, when the cell body received the outside pulling force of curtain system, the cell body was taken place the displacement by external force pulling and anchor component easily, made the local displacement of curtain suspension system, and brittle material panels such as glass curtain wall panel took place the spontaneous explosion easily this moment, had very big potential safety hazard. On the other hand, riveting nut installs in the cell body, and the whole height of cell body must thicken, and the cell body need be buried underground outside the reinforcing bar layer, must increase the concrete protective layer thickness, and concrete thickness increases, leads to concrete fracture quantity to increase easily, the fracture width increases for the displacement takes place more easily for the cell body, further aggravates the potential safety hazard of curtain panel auto-explosion.
Disclosure of Invention
The invention aims to solve the problems that the combination capability of an embedded groove body and concrete is poor and the embedded groove body is easy to separate from a concrete structure, and provides a groove type embedded part.
Another object of the invention is to solve the above problems by providing a method for producing the above trough-type embedment.
In order to achieve the purpose, the invention adopts the following technical scheme: this piece is buried to slot type, including the cell body, the cell body be rectangular shape and cross-section for C shape, the cell body on be provided with the T-slot that can supply T shape bolt slide adjusting to link firmly the position, the cell body keep away from the open-ended bottom surface and be provided with the anchor foot pole, anchor foot pole welding or riveting on the cell body, the one end that the cell body was kept away from to the anchor foot pole be provided with the expansion part.
In foretell slot type buries the piece, the cell body keep away from the bottom surface outer wall of notch and be provided with the width and be greater than the notch size salient outside the cell body and the bottom surface inner wall and the corresponding and to the sunken storage tank of lug with the lug, the lug on be provided with and run through the outer bottom surface of cell body and lug and with the connecting hole of storage tank intercommunication, anchor foot pole and cell body riveting link firmly.
In foretell slot type buries the piece, the lug be the circular platform shape that the biggest taper diameter is greater than the notch size, the storage tank be circular platform shape, lug and storage tank by 1 bottom surface punching press of cell body tensile and cell body integrated into one piece.
In the groove type embedded part, the lug is far away from the groove body and is provided with a first supporting plane, the bottom of the accommodating groove is provided with a second supporting plane, and the diameter of the first supporting plane is larger than that of the second supporting plane.
In the groove type embedded part, the oblique angle alpha between the oblique edge of the section of the lug and the groove body is 20-45 degrees, and the protruding height of the lug is 0.3-0.6 times of the diameter of the connecting hole.
In the groove type embedded part, the conical surface of the lug is in arc transition connection with the groove body, the conical surface of the lug is in arc transition connection with the first supporting plane, and the side edge of the section of the accommodating groove is arc-shaped.
In the groove type embedded part, the anchor foot rod comprises a connecting section arranged in the connecting hole, the two ends of the connecting section are respectively provided with a rivet joint and a supporting platform, the rivet joint is positioned in the accommodating groove and is abutted against the second supporting plane, and the supporting platform is positioned outside the convex block and is abutted against the first supporting plane.
In the groove type embedded part, the top of the rivet joint is not higher than the bottom surface of the T-shaped groove by 2 mm.
In the groove type embedded part, one side of the supporting platform, which is far away from the connecting section, is a connecting foot body, an expansion part is arranged at one end of the connecting foot body, which is far away from the supporting platform, and the diameter of the connecting section is larger than that of the connecting foot body.
In foretell slot type buries the piece, brace table and connection foot body cold-heading integrated into one piece, the linkage segment tip section do not do the cold-heading hardening before riveting with the cell body, connection foot body and brace table between have the conical surface transition.
In the groove type embedded part, the diameter of the connecting section is 1.05-1.25 times of that of the connecting foot body.
In the groove type embedded part, the groove body is provided with a first protection plate which is fixedly connected to the top or the side part of the groove body and protrudes out of one side part of the groove body.
In the groove type embedded part, the first guard plate is fixedly connected to the side wall of the groove body close to the edge of the concrete body when the groove body is installed, and protrudes out of the edge of the concrete body.
In the groove type embedded part, one side of the first protection plate, which is far away from the outer bottom surface of the groove body, is flush with the opening surface of the groove body, the first protection plate is welded with the groove body, and a welding mark between the first protection plate and the groove body does not protrude out of the surface of the first protection plate.
In the groove type embedded part, one side of the first protection plate, which is far away from the groove body, is provided with a second protection plate, the second protection plate is not parallel to the first protection plate, the first protection plate and the second protection plate are bent and integrally formed or fixedly connected by welding, the second protection plate is provided with an anchor foot, and the anchor foot is riveted or welded on the second protection plate.
In the groove type embedded part, the second guard plate is provided with the circular truncated cone protruding blocks and the circular truncated cone grooves which correspond to the anchor feet one to one, the circular truncated cone protruding blocks, the circular truncated cone grooves and the second guard plate are integrally formed, the circular truncated cone protruding blocks and the circular truncated cone grooves are concentrically provided with riveting holes, the anchor feet are riveted in the riveting holes, the anchor feet are riveted with the second guard plate through the riveting holes, and the riveting heads are located in the circular truncated cone grooves.
The production method for manufacturing the groove type embedded part comprises the following steps:
step A: forming a connecting hole on the hot-rolled C-shaped steel by using a punching process;
and B: placing a notch of hot-rolled C-shaped steel with a connecting hole upwards on a lower die of a die, aligning the connecting hole with a lower die forming cavity, and pressing a cylindrical male die downwards to enter the connecting hole through a notch of a T-shaped groove for positioning;
and C: the cylindrical male die is further pressed downwards to be matched with the lower die cavity to form a convex block and an accommodating groove;
step D: and (4) inserting the anchor foot rod into the connecting hole from bottom to top, and pressing the anchor foot rod penetrating into the accommodating groove by using a punch to rivet out the rivet joint.
Step E: and welding the side, far away from the anchor foot, of the L-shaped guard plate with the anchor foot on one side on the groove body.
In the production method of the groove type embedded part, before the step D, the anchor foot rod is prepared, the anchor foot rod is subjected to cold heading one-step forming, and the connecting section of the anchor foot rod is not subjected to cold heading hardening treatment.
Compared with the prior art, the invention has the advantages that:
1. the anchor foot pole is through riveting or welded mode and cell body fixed connection, when receiving external pulling force, does not take place the displacement in certain extent, ensures that the cell body when receiving external force, does not take place the displacement, improves the real reliability of curtain, reduces the curtain panel spontaneous explosion rate.
2. The rivet joint part holding of stock is in the storage tank, under the condition of guaranteeing that T-nut slided in the T-slot smoothly, can reduce the cell body height, reduces the thickness of concrete protection layer, reduces the concrete fracture situation, reduces stock length simultaneously, material saving and manufacturing cost.
3. The accommodating groove and the lug are in a circular truncated cone shape, the pulling force of the T-shaped bolt of the groove body is supported by the side plates on the two sides of the groove bottom plane, and the acting force borne by the side plates is uniformly distributed on the anchor foot rods through the conical curved surfaces of the circular truncated cone, so that the common fault that the bottom plane of the groove body is easy to deform is solved, the preferred angle is 25-38 degrees, the economic principle is met, and meanwhile, the deformation resistance is improved.
4. The anchor foot rod is provided with the riveting head and the supporting platform, and the riveting head and the supporting platform are simultaneously supported against the first supporting plane and the second supporting plane, so that the two sides are tightly clamped to bear force, and the displacement caused by the looseness of the groove body and the anchor foot rod is further prevented.
5. The side edge of the groove body is provided with a protection plate, the protection plate extends towards the edge of the concrete body, and the protection plate is used for protecting the concrete body from acting force applied to the concrete edge by a lever fulcrum formed by bending moment of a connecting piece, so that the concrete edge is prevented from cracking; in addition, the guard plate extends towards the edge of the concrete body, so that the potential safety hazard that the parallelogram formed by the unevenness and the concave-convex false supporting points poured and tamped on the concrete surface of the curtain wall is deformed is effectively solved.
Drawings
FIG. 1 is a schematic view of the structure provided by the present invention;
FIG. 2 is a cross-sectional view provided by the present invention;
FIG. 3 is a schematic view of the structure of the trough body provided by the present invention;
FIG. 4 is a schematic view of an anchor foot bar provided by the present invention;
FIG. 5 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 6 is a schematic diagram of a third structure of the embodiment of the present invention;
FIG. 7 is a graph of the stress analysis of the top-buried condition of use according to the present invention;
FIG. 8 is a graph of the lateral buried stress analysis in the present invention;
FIG. 9 is a diagram of a technical deficiency of the apron-free system of the present invention;
FIG. 10 is a diagram of two pivot acceptance assignments provided by the present invention;
fig. 11 is a diagram of the acceptance distribution of three fulcrums provided by the present invention.
In the figure, the groove body 1, the T-shaped groove 2, the anchor foot rod 3, the expansion part 4, the bump 5, the first support plane 51, the accommodating groove 6, the second support plane 61, the connecting hole 7, the connecting section 8, the rivet joint 9, the support table 10, the connecting foot body 11, the first guard plate 12, the second guard plate 13, the anchor foot 14, the circular truncated cone bump 15, the circular truncated cone groove 16, the connecting piece 100 and the Hafu line 101.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 3, the groove type embedded part comprises a groove body 1, wherein the groove body 1 is long-strip-shaped, the cross section of the groove body is C-shaped, a T-shaped groove 2 for a T-shaped bolt to slide and adjust the fixed connection position is formed in the groove body 1, at least one anchor foot rod 3 is arranged on the bottom surface of the groove body 1 far away from an opening, the anchor foot rod 3 is riveted on the groove body 1, and an expansion part 4 is arranged at one end of the anchor foot rod 3 far away from the groove body 1. Anchor foot pole 3 is through riveting or welded mode and cell body 1 fixed connection, when receiving external pulling force, does not take place the displacement in certain extent, ensures that cell body 1 does not take place the displacement when receiving external force, improves the real reliability of curtain, reduces the curtain panel spontaneous explosion rate.
In this embodiment, the anchor foot rod 3 is fixedly connected with the tank body 1 in a riveting manner, preferably, the anchor foot rod 3 is fixedly connected with the tank body 1 through a cold heading process, if red riveting through friction heating and electric heating is adopted, the strength of the red riveting part is reduced after high temperature, and is lower than that of the anchor foot rod body, so that the tank body 1 is easily deformed or broken, the displacement of the tank body 1 is caused, and the burst probability of the curtain wall panel is improved. Meanwhile, after the red rivet is cooled, the riveted part shrinks, and the connection capacity of the anchor foot rod 3 and the groove body 1 is reduced to be loosened. The riveting surface of the groove body of the hot-rolled C-shaped steel is small, and the periphery of the riveting point is easy to deform firstly when being pulled, so that the groove body slides and deforms towards the direction of pulling force.
Further, as shown in fig. 2 and 3, the outer wall of the bottom surface of the tank body 1, which is far away from the notch, is provided with 3 convex blocks 5 protruding outwards from the tank body 1, and accommodating grooves 6 corresponding to the convex blocks 5 and recessed towards the convex blocks 5, the convex blocks 5 are provided with connecting holes 7 penetrating through the outer bottom surface of the tank body 1 and the convex blocks 5 and communicated with the accommodating grooves 6, the anchor foot rods 3 are arranged in the connecting holes 7 in a penetrating manner, the tensile force borne by the T-shaped screw rod is transmitted to the bottom plane of the tank body 1 through the side wall of the tank body 1, and then the anchor foot rods 3 are transmitted through the convex blocks 5, the convex blocks 5 increase the thickness of the part with large change of the stress deformation amount of the bottom plane of the tank body 1, and divide the bottom plane of the tank body 1 to reduce the span thereof, thereby improving the strength and.
More closely, lug 5 is the round platform shape, storage tank 6 be the round platform shape, the round platform shape makes the effort of 1 bottom plate plane transmission of cell body on anchor foot pole 3 through the circumference equipartition, avoids square, polygon etc. because lug 5 wall thickness leads to the conduction uneven, anchor foot pole atress concentrates and leads to the deformation easily, for example the bicycle tire leads to tire non-deformable through evenly distributed's the average atress of steel wire. The lug 5 and the accommodating groove 6 are integrally formed with the tank body 1 by punching and stretching the bottom surface of the tank body 1. In the process of stamping and stretching, the stress point thickness of the bottom plane of the tank body 1 is increased, the strength of the bottom plane of the tank body 1 and the strength of the lug 5 are further improved through the cold hardening effect, and the deformation resistance of the tank body 1 is further improved.
Preferably, the lug 5 is provided with a first supporting plane 51 far away from the tank body 1, the tank bottom of the accommodating tank 6 is provided with a second supporting plane 61, the diameter of the first supporting plane 51 is greater than that of the second supporting plane 61, the first supporting plane 51 and the second supporting plane 61 provide an acting point for the connection of the anchor foot rod 3 and the tank body 1, and simultaneously provide a supporting limit for the riveting head and the supporting table of the anchor foot rod 3. The first support plane 51 is parallel to the second support plane 61 and perpendicular to the axis of the anchor rod 3, so that the reaction force of the anchor rod 3 is always parallel to the bearing force, and the anchor rod is prevented from twisting and deforming due to winding.
Preferably, the oblique angle alpha between the oblique side of the section of the lug 5 and the groove body 1 is 20-45 degrees, and the protruding height of the lug 5 is 0.3-0.6 times of the diameter of the connecting hole 7. In this embodiment, the angle α is 30 °, and the height of the bump 5 is 0.4 times the diameter of the connection hole 7. Taking the outer diameter of the anchor foot rod 3 as 12mm as an example, a groove body 1 with the wall thickness of 4 and the width of 50mm is taken, the inner width of a bottom plate is about 38mm after two R angles are removed, and the diameter of a first supporting plane is taken as the diameter of a lug 5 with an angle of 30
The maximum outer diameter of the stretching round table is 40.32mm and 40.32mm when the height of the stretching h is 5mm and the R formed by stretching is 2mm>The inner width of the bottom plate is 38mm, so the reverse surface of the notch of the T-shaped groove 2 is used as the expanded bearing area of the disc type stretching hole platform formed by the concave die, the bearing is effectively distributed to a conical bearing system, and the anchor foot is enabled to beTensile round platform N in connection with groove bodyRd，s,eThe strength of the steel plate reaches 1.8-3.7 times of that of the prior art. The calculation formula is obtained by a large number of tests:
in the formula:
NRd，s,e-the tensile standard value (N) of the tensile round platform at the connection of the anchor foot and the trough body;
γMs,cathe joint of the anchor bar and the trough is in tension and in shear.
Preferably, the conical surface of the projection 5 is in arc transition connection with the tank body 1, the conical surface of the projection 5 is in arc transition connection with the first support plane 51, and the side edge of the section of the accommodating groove 6 is arc-shaped. Prevent stress concentration and further prevent the cracking deformation of the lug 5 and the groove body 1.
Preferably, as shown in fig. 4, the anchor foot rod 3 comprises a connecting section 8 disposed in the connecting hole 7, the connecting section 8 is provided at two ends thereof with a rivet head 9 and a support platform 10, respectively, the rivet head 9 is located in the accommodating groove 6 and abuts against the second support plane 61, and the support platform 10 is located outside the projection 5 and abuts against the first support plane 51. The rivet joint 9 is formed through cold heading, and is all or most holding in the storage tank, guaranteeing that the T-bolt can normally pass through the T-shaped groove under the state, reduces cell body 1 height as far as to reduce the concrete protection layer, in this embodiment, the top of rivet joint 9 salient in 2mm below the bottom surface of T-shaped groove, guarantee that the T-bolt passes through the T-shaped groove smoothly.
Meanwhile, after the cold heading riveting is completed, the rivet joint 9 and the support platform 10 are respectively tightly attached to the first support surface 51 and the second support surface 61 to tightly clamp the projection 5, so that the projection is not easy to loosen from the tank body 1. After cold heading, the strength of the rivet joint 9 and the connecting section 8 is further enhanced, so that the rivet joint is not easy to deform, the distance between the rivet joint 9 and the supporting platform 10 is controlled, and the convex block is clamped. The diameter of the connecting section 8 is larger than that of the connecting foot body 11. The diameter of the connecting section 8 is 1.05 to 1.25 times of the diameter of the connecting foot body 11. The diameter of the connecting section 8 is 1.1 times of that of the connecting pin body 11 in the embodiment, after cold heading riveting, the connecting end 8 is thickened by extrusion deformation, and the tension connecting hole 7 is further improved in the strength and the fixed connection capacity with the tank body 1.
Preferably, the side of the support platform 10 away from the connecting section 8 is a connecting foot body 11, and an end of the connecting foot body 11 away from the support platform 10 is provided with an enlarged part 4. The connecting capacity of the anchor foot rod 3 and concrete is improved. The skilled person can also design the enlarged part 4 as a profiled part or a groove, aiming to improve the bonding surface with the concrete to improve the bonding ability with the concrete.
Preferably, the supporting table 10 and the connecting pin body 11 are integrally formed through cold heading, the end section of the connecting section 8 is not subjected to cold heading hardening treatment before being riveted with the groove body 1, and conical surface transition is formed between the connecting pin body 11 and the supporting table 10. In the prior art, the support table 10 usually needs to be turned by a turning process, and a bar stock at least having the same diameter as the support table needs to be turned, so that waste is great, and the turned bar stock has low strength and is easy to break. The existing upsetting technology can only be used for one-way heading, the anchor rod with the step arranged in the middle cannot be technically completed, and the rivet head section cannot be controlled to not generate cold-work hardening strength. In this embodiment, the support platform adopts a bidirectional multi-station + half hybrid cold heading invention technology, the support platform part adopts all-in-one half die forging, the connecting rod body 11 and the expansion part 4 adopt reverse-power die upsetting, and the half section is used for bearing the impact force of heading, so that the possibility of increasing the strength of the riveting section is reduced. As shown in fig. 3, a is a first die upsetting direction, B is a second die upsetting direction of the half die, and the half die crushes the supporting table 10 around the connecting section 8 to form a half line 101 on the supporting table 10.
Preferably, the tank body 1 is provided with a first protection plate 12, and the first protection plate 12 is fixedly connected to the top or the side of the tank body 1 and protrudes out of one side of the tank body 1. In the embodiment, the first guard plate 12 is fixedly connected to one side of the tank body 1 and is flush with the side wall of the edge of the concrete body, so that the concrete is protected from cracking of the edge of the concrete due to the fact that a lever fulcrum formed by the connecting piece 100 is caused by the gravity of a suspension piece, as shown in fig. 9, the connecting piece 100 cannot be calculated by using a formula and a coefficient due to uncertain factors such as uneven local points of the concrete and lever-type compression of the edge, and a parallelogram is easily formed due to uneven stress, so that potential safety hazards of a curtain wall are caused; when the side buries, during T type bolt and the connecting piece of horizontal single track, amount of deflection deformation increases, and the asymmetric flagging leads to the curtain potential safety hazard.
As shown in fig. 6, when the present embodiment is applied to top burying, the connecting member 100 is supported by the first protecting plate 12 when it is subjected to a deformation tendency, so that the edge of the concrete is well protected to prevent the concrete from cracking.
The pressure of the bending moment M of the RB is uniformly distributed to the concrete structure through the metal plate, the problem that the concrete fulcrum cannot be calculated is effectively solved, and the pressure can be calculated through a formula obtained through a large number of tests.
Example 1: when the end part of the bending moment M bears the gravity load V and the bending moment M transmitted from the outside, the calculation can be carried out according to the sketch of two pivot points or three pivot points, as shown in FIGS. 10 and 11. The calculation formula of the two fulcrums is (A-1), and the formula of the three fulcrums is (A-2).
In the formula: RB, RC and RD-B pivot, C pivot and D pivot reaction values;
WA-end A deflection value; w middle-BC midpoint deflection value;
a is the distance from the overhanging outer edge of the adapter to the supporting surface outer side pivot B;
l is the distance from the bolt anchoring point C of the adapter to the supporting surface outer side pivot B;
l 1-distance from anchor point C of first row of bolts of adaptor to fulcrum B outside the bearing surface;
l 2-distance between adaptor two rows of bolt anchor points C and D;
E. i-modulus of elasticity and section moment of inertia of the adaptor material.
Example 2: when the special T-shaped switching locking bolt connected with the switching piece and the embedded piece bear tension shear composite force, the local bending failure mode of the embedded piece plate groove is calculated according to the formula (A-3):
in the formula
fNR-distributing the tension (N) to the embedded transition bolt;
fN-design value of stud tensile load capacity (N);
fVR-shear forces (N) distributed to the embedded transition bolts;
fV-design value (N) for shear bearing capacity of the transit bolt;
fM-design value of bending moment (Nm) for bending the whole tank under the action of tensile force;
fN,s,lthe design value (N) of the bearing capacity of the plate groove type embedded part groove body in tensile failure;
fV,slthe design value (N) of the bearing capacity of the plate-groove type embedded part groove body under shearing damage;
fM,s,ldesign value of bearing capacity (Nm) for the slot-in-slot type embedded piece slot body in tension bending.
The adapter is connected through the auxiliary hole of the additional auxiliary plate, and the deflection is effectively controlled under the actions of supporting pressure shear, axial horizontal pressure and the like of a bolt connected with the auxiliary hole, and the deflection can be calculated through a large number of tests and formulas. As shown in fig. 8
Example 3: when the T-shaped special adapter locking bolt connected with the adapter bears the tension-shear composite force, the steel damage mode of the adapter bolt is calculated according to a formula (B-1):
in the formula
fNR-distributing the tension (N) to the embedded transition bolt;
fN-design value of stud tensile load capacity (N);
fVR-shear forces (N) distributed to the embedded transition bolts;
fVdesign value of shear resistance bearing capacity of adapting bolt (N)
Example 4: when the special T-shaped switching locking bolt connected with the switching piece is buried at the side of the switching piece bearing the composite force of tension shear and bending moment, the deflection deformation value of the switching piece under the gravity load deformation failure mode is calculated according to a formula (B-2) and a switching piece gravity load deformation recheck (B-3) (the worst value of the two values is taken).
F represents the designed value (N) of the overhang distance gravity load of the adapter;
e-modulus of elasticity of the adaptor material (N/mm 2);
Fg-a standard value of deformation (kN) of the adaptor gravity load point;
i-vertical section at the adaptor slot is about the horizontal central axis moment of inertia (mm 4);
l-horizontal distance (mm) from the gravity load action point to the anchoring point;
theta is the corner deformation parameter.
m-adapter overhanging distance gravity load influence bending moment coefficient
Gamma r-coefficient of material performance
Preferably, one side of the first protection plate 12, which is far away from the outer bottom surface of the tank body 1, is flush with the opening surface of the tank body 1, the first protection plate 12 is connected with the tank body 1 in a welding mode, a welding mark between the first protection plate 12 and the tank body 1 does not protrude out of the surface of the first protection plate 12, and the welding mark between the first protection plate 12 and the tank body 1 is not polished. When the connecting piece 100 is connected to the tank body 1 through the T-shaped bolt, the flat support is obtained, and the common support of the tank body 1 is obtained at the same time, so that the first protection plate 12 is prevented from singly accepting and separating from the tank body 1.
Example two
The basic principle of the present embodiment is the same as that of the first embodiment, and the difference is that a second protection plate 13 is disposed on one side of the first protection plate 12 away from the tank body 1, the second protection plate 13 is not parallel to the first protection plate 12, the first protection plate 12 and the second protection plate 13 are bent and integrally formed or fixedly welded to each other, an anchor foot 14 is disposed on the second protection plate 13, and the anchor foot 14 is riveted or welded to the second protection plate 13. The first guard plate 12 and the second guard plate 13 form L-shaped protection for concrete, and the concrete external corner is prevented from being collapsed by deformation acting force of the connecting piece. Those skilled in the art will appreciate that the angle between the first shield 12 and the second shield 13 can be designed according to the actual shape of the concrete.
Preferably, the second guard plate 13 is provided with a circular truncated cone protruding block 15 and a circular truncated cone groove 16 which correspond to the anchor foot 14 one by one, the circular truncated cone protruding block 15 and the circular truncated cone groove 16 are integrally formed with the second guard plate 13, the circular truncated cone protruding block 15 and the circular truncated cone groove 16 are concentrically provided with riveting holes, the anchor foot 14 is riveted in the riveting holes, the anchor foot 14 is riveted with the second guard plate 13 through the riveting holes, and the riveting head 9 is located in the circular truncated cone groove 16. The anchor foot 14 is buried in the concrete, provides the holding power for second backplate 13, and when first backplate received the connecting piece effort, the anchor foot provided the holding power to second backplate 13 and supported first backplate 12, bears the effort when first backplate 12 receives horizontal shear force and normal tension, prevents effectively that the concrete from ftracturing.
EXAMPLE III
The basic principle of this embodiment is the same as embodiment one, and the difference lies in, cell body 1 on the welding have a plurality of anchor foot pole, the one end integrated into one piece that anchor foot pole is close to cell body 1 have the welding dish, welding dish and cell body full weld be connected, the welding dish is solitary with anchor foot pole circular arc. And an expansion part is arranged at one end of the anchor foot rod, which is far away from the welding disc. Welding area is increased by welding the welding disc, welding strength is improved, and the shrinkage after welding the welding disc and the groove body 1 is uniform, so that the deformation of the groove body 1 is reduced.
The production method for manufacturing the groove type embedded part comprises the following steps:
step A: a connecting hole 7 is formed in the hot-rolled C-shaped steel by a punching process;
and B: placing a notch of the hot-rolled C-shaped steel with the connecting hole 7 upwards on the lower die, aligning the connecting hole 7 with a lower die forming cavity, and pressing down the cylindrical male die to enter the connecting hole 7 through the notch of the T-shaped groove 2 for positioning; prevent that lug 5 and storage tank 6 decentraction from influencing anchor foot pole atress, take place deformation.
And C: the cylindrical male die is further pressed downwards to be matched with the lower die cavity, so that a convex block 5 and a containing groove 6 are formed; the material is hardened by cold working after extrusion forming, and the strength of the bump is improved.
Step D: the anchor foot rod penetrates into the connecting hole 7 from bottom to top, and the anchor foot rod penetrating into the accommodating groove 6 is punched by a punch to rivet out the rivet joint 9. The strength of the rivet joint 9 and the connecting section 8 is enhanced, and the tensile breaking performance of the connecting section 8 is improved by thickening.
Step E: the L-shaped guard plate with the anchor foot 14 on one side is welded on the tank body 1 on the side far away from the anchor foot 14.
Before the step D, preparing the anchor foot rod 3, cold heading the anchor foot rod 3 for one-time forming, and not carrying out cold heading hardening treatment on the connecting section 8 of the anchor foot rod 13. Avoid 3 mounds of stock to beat intensity and improve, penetrate behind the connecting hole 7, be difficult to rivet out intact riveting head with the linkage segment tip, effectively solve hidden danger problem of splitting secretly, practice thrift the process simultaneously by a wide margin and reduce the cost.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of the groove body 1, the T-shaped groove 2, the anchor foot rod 3, the expanded portion 4, the projection 5, the first support plane 51, the receiving groove 6, the second support plane 61, the connecting hole 7, the connecting section 8, the rivet joint 9, the support table 10, the connecting foot body 11, the first guard plate 12, the second guard plate 13, the anchor foot 14, the circular truncated cone projection 15, the circular truncated cone groove 16, the rivet hole, the connecting member 100, the hough line 101, etc., are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (18)
1. The utility model provides a piece is buried to slot type, includes cell body (1), cell body (1) be rectangular shape and cross-section and be C shape, cell body (1) on be provided with T-slot (2) that can supply T shape bolt slide adjusting to link firmly the position, its characterized in that, cell body (1) keep away from the open-ended bottom surface and be provided with anchor foot pole (3), anchor foot pole (3) welding or riveting on cell body (1), anchor foot pole (3) keep away from the one end of cell body (1) and be provided with expansion part (4).
2. The trough type embedded part according to claim 1, wherein the outer wall of the bottom surface of the trough body (1) far away from the notch is provided with a convex block (5) which is wider than the notch and protrudes outwards from the trough body (1), and a containing groove (6) which is provided with a width larger than the size of the notch, the inner wall of the bottom surface of the convex block (5) corresponds to the convex block (5) and is sunken towards the convex block (5), the convex block (5) is provided with a connecting hole (7) which penetrates through the outer bottom surface of the trough body (1) and the convex block (5) and is communicated with the containing groove (6), and the anchor foot rod (3) is fixedly.
3. The trough-type embedded part according to claim 2, wherein the convex block (5) is in a truncated cone shape with the maximum outer diameter larger than the size of the notch, the accommodating groove (6) is in a truncated cone shape, and the convex block (5) and the accommodating groove (6) are integrally formed with the trough body (1) by punching and drawing the bottom surface of the trough body (1).
4. The channel insert according to claim 3, characterised in that the projection (5) is provided with a first support plane (51) remote from the channel body (1), and the bottom of the receiving channel (6) is provided with a second support plane (61), the diameter of the first support plane (51) being larger than the diameter of the second support plane (61), the first support plane (51) being parallel to the second support plane (61) and perpendicular to the axis of the anchor foot bar (3).
5. The channel insert according to claim 4, characterised in that the angle α between the oblique side of the cross-section of the projection (5) and the channel body (1) is 20-45 °, the projection height of the projection (5) being 0.3-0.6 times the diameter of the connecting opening (7).
6. The trough-type embedded part according to claim 2, wherein the conical surface of the projection (5) is in arc transition connection with the trough body (1), the conical surface of the projection (5) is in arc transition connection with the first supporting plane (51), and the side edge of the cross section of the accommodating groove (6) is arc-shaped.
7. Channel insert according to claim 1, characterised in that the shank (3) comprises a connecting section (8) arranged in the connecting hole (7), that the two ends of the connecting section (8) are provided with a rivet head (9) and a support (10), respectively, that the rivet head (9) is arranged in the receiving groove (6) and rests against the second support plane (61), and that the support (10) is arranged outside the projection (5) and rests against the first support plane (51).
8. Channel insert according to claim 7, characterized in that the rivet head (9) is no more than 2mm higher at the top than the bottom of the T-shaped channel (2).
9. The channel insert as claimed in claim 7, characterised in that the side of the support (10) remote from the connecting piece (8) is provided with a connecting foot body (11), the end of the connecting foot body (11) remote from the support (10) is provided with an enlarged section (4) or a profiled section or a groove, and the diameter of the connecting piece (8) is greater than the diameter of the connecting foot body (11).
10. The channel insert as claimed in claim 7, wherein the support (10) is formed integrally with the connecting leg body (11) by cold heading; the end section of the connecting section (8) is not subjected to cold heading hardening treatment before being riveted with the tank body (1); the connecting foot body (11) and the support table (10) are in conical surface transition.
11. Channel insert according to claim 9, characterized in that the connecting section (8) has a diameter of 1.05-1.25 times the diameter of the connecting foot body (11).
12. The trough-type embedded part according to claim 1, characterized in that a first guard plate (12) is arranged on the trough body (1), and the first guard plate (12) is fixedly connected to the top or the side of the trough body (1) and protrudes out of one side of the trough body (1).
13. The channel insert as claimed in claim 12, characterised in that the first cover sheet (12) is fixedly connected to the side wall of the channel (1) adjacent the concrete edge during installation and projects outwards.
14. The trough type embedded part according to claim 12, wherein one side of the first protection plate (12) far away from the outer bottom surface of the trough body (1) is flush with the opening surface of the trough body (1), the first protection plate (12) is welded with the trough body (1), and a welding mark between the first protection plate (12) and the trough body (1) does not protrude out of the surface of the first protection plate (12).
15. The trough-type embedded part according to claims 12-14, wherein a second guard plate (13) is arranged on one side of the first guard plate (12) far away from the trough body (1), the second guard plate (13) is not parallel to the first guard plate (12), the first guard plate (12) and the second guard plate (13) are bent and integrally formed or fixedly connected by welding, an anchor foot (14) is arranged on the second guard plate (13), and the anchor foot (14) is riveted or welded on the second guard plate (13).
16. The trough-type embedded part according to claim 15, wherein the second guard plate (13) is provided with boss protrusions (15) and boss grooves (16) corresponding to the anchor feet (14) one by one, the boss protrusions (15) and the boss grooves (16) are integrally formed with the second guard plate (13), the boss protrusions (15) and the boss grooves (16) are concentrically provided with riveting holes (17), the anchor feet (14) are riveted in the riveting holes (17), the anchor feet (14) are riveted with the second guard plate (13) through the riveting holes (17), and the riveting heads (9) are located in the boss grooves (16).
17. A method for producing a trough insert according to claims 1-15, characterized in that step a: a connecting hole (7) is formed in the hot-rolled C-shaped steel by a punching process;
and B: placing a notch of hot-rolled C-shaped steel with a connecting hole (7) upwards on a lower die, aligning the connecting hole (7) with a lower die forming cavity, and pressing a cylindrical male die downwards to enter the connecting hole (7) for positioning through the notch of a T-shaped groove (2);
and C: the cylindrical male die is further pressed downwards to be matched with the lower die cavity to form a convex block (5) and a containing groove (6);
step D: the anchor foot rod penetrates into the connecting hole (7) from bottom to top, and the anchor foot rod penetrating into the accommodating groove (6) is riveted out of the riveting head (9) by utilizing the press of the punching machine.
Step E: the side of the L-shaped guard plate, which is provided with the anchor foot (14) on one side, is far away from the anchor foot (14) and is welded on the tank body (1).
18. A cold-heading production method for a channel-type insert according to claim 17 wherein, prior to step D, the shank (3) is prepared, the shank (3) is cold-headed once and the connecting section (8) of the shank (13) is not subjected to a cold-heading hardening treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010458033.6A CN112031219A (en) | 2020-05-27 | 2020-05-27 | Groove type embedded part and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010458033.6A CN112031219A (en) | 2020-05-27 | 2020-05-27 | Groove type embedded part and manufacturing method thereof |
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| CN112031219A true CN112031219A (en) | 2020-12-04 |
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| CN202010458033.6A Pending CN112031219A (en) | 2020-05-27 | 2020-05-27 | Groove type embedded part and manufacturing method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0442487A2 (en) * | 1990-02-15 | 1991-08-21 | Eltreva AG | Connecting element for two construction frame members |
| CN101509289A (en) * | 2009-02-13 | 2009-08-19 | 沈阳远大铝业工程有限公司 | C-shaped channel-section steel embedded parts |
| CN207975335U (en) * | 2018-02-07 | 2018-10-16 | 重庆埃力森金属制品有限公司 | Pre-buried channel flow |
| CN209129224U (en) * | 2018-11-19 | 2019-07-19 | 中铁五局集团建筑工程有限责任公司 | A kind of plate channel type curtain wall pre-embedded device |
| CN110158781A (en) * | 2019-05-22 | 2019-08-23 | 刘丽 | Slot type embedded part |
| CN111119239A (en) * | 2020-01-09 | 2020-05-08 | 河南安诺尼机械设备有限公司 | Anti-deformation embedded channel assembly |
-
2020
- 2020-05-27 CN CN202010458033.6A patent/CN112031219A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0442487A2 (en) * | 1990-02-15 | 1991-08-21 | Eltreva AG | Connecting element for two construction frame members |
| CN101509289A (en) * | 2009-02-13 | 2009-08-19 | 沈阳远大铝业工程有限公司 | C-shaped channel-section steel embedded parts |
| CN207975335U (en) * | 2018-02-07 | 2018-10-16 | 重庆埃力森金属制品有限公司 | Pre-buried channel flow |
| CN209129224U (en) * | 2018-11-19 | 2019-07-19 | 中铁五局集团建筑工程有限责任公司 | A kind of plate channel type curtain wall pre-embedded device |
| CN110158781A (en) * | 2019-05-22 | 2019-08-23 | 刘丽 | Slot type embedded part |
| CN111119239A (en) * | 2020-01-09 | 2020-05-08 | 河南安诺尼机械设备有限公司 | Anti-deformation embedded channel assembly |
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