CN218028189U - Connection structure in assembly type structure - Google Patents
Connection structure in assembly type structure Download PDFInfo
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- CN218028189U CN218028189U CN202121334536.9U CN202121334536U CN218028189U CN 218028189 U CN218028189 U CN 218028189U CN 202121334536 U CN202121334536 U CN 202121334536U CN 218028189 U CN218028189 U CN 218028189U
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Abstract
A connection structure in a fabricated building, comprising: the connecting structure comprises two precast concrete members, wherein a plurality of connecting blocks are embedded in at least two opposite end sides of the butt joint end surfaces of the two precast concrete members along the length direction; the connecting plates are rectangular plates, two connecting through holes are arranged in the middle of each connecting plate at intervals, and the connecting through holes are triangular; each connecting plate is correspondingly arranged on two connecting blocks on the two precast concrete members; the unilateral fastening bolt assemblies are composed of a screw rod, a nut and a limiting block sleeved on the screw rod; the tail part of the screw rod is triangular; the limiting block is in a triangular prism structure, and the size of the limiting block is the same as that of the triangular tail of the screw; a screw hole for the screw to penetrate through is arranged in the center of the limiting block; the screw rod is arranged in a connecting through hole of the component in a penetrating way, and the connecting through hole is triangular; the limiting block is sleeved outside the screw rod in the component connecting through hole, and the outer side face of the limiting block is clamped in the triangular connecting through hole of the component and locked by the nut.
Description
Technical Field
The utility model relates to a building engineering technique, in particular to connection structure among assembly type structure.
Background
The core technology of the fabricated building is a node connection technology. The most essential difference between the traditional construction and the assembly type construction is how to efficiently connect the components prefabricated in the factory into a stressed structure capable of bearing various loads, and the influence of the performance of the connecting node and the overall performance of the overall assembly type structure is very critical. At present, the connection modes adopted by the fabricated building mainly comprise sleeve grouting connection, reinforced concrete anchor lap joint, post-cast concrete connection, bolt connection and welding connection. Wherein, the sleeve grouting connection is the mainstream mode of the prefabricated concrete structure connection; bolted and welded connections are the primary connection modes employed by fabricated steel structures.
In the prior art, the connection mode of the precast concrete components mainly comprises sleeve grouting connection and dry connection. The sleeve grouting connection mode is characterized in that a steel bar is inserted into a metal sleeve, high-strength, early-strength and micro-expandable cement-based grouting material is poured, positive acting force is generated between the surface of the steel bar and the inner side of the sleeve under the constraint action of the sleeve with high rigidity on the micro-expandable grouting material, the steel bar generates friction force on the rough surface with ribs by means of the positive acting force, and therefore load transmission between the stressed steel bars is achieved. But the sleeve grouting connection cost is high, the construction time is long, and the grouting quality is difficult to ensure, so that the node strength is influenced, and potential safety hazards are left for the building. In the prior art, dry connection usually adopts two modes, one mode is that a screw penetrates through a precast concrete member, and for a precast concrete column, the screws in two directions need to penetrate through, so that the screws in the two directions are not on the same plane, and the stress is uneven. The other method is that the screw does not penetrate through the precast concrete component, but the screw needs to be pre-embedded in the precast concrete component, and the method can cause the screw to be partially exposed, so that the transportation of the precast concrete component is not facilitated.
Among the prior art, the butt joint of box steel member is mainly welded connection, and this kind of connected mode will increase a large amount of on-the-spot welding work, flaw detection inspection acceptance work and environmental pollution, and is also higher to welding workman's technical requirement simultaneously, and then has increased construction period and construction cost.
In the prior art, the box-type steel column and the H-shaped steel beam are usually connected by high-strength bolts and unilateral fastening bolts. When adopting high-strength bolt to connect, at the side welding part H shaped steel beam section of box post, H shaped steel beam section adopts high-strength bolt to connect with H shaped steel roof beam, and this kind of connected mode leads to box post and part H shaped steel beam section to form heterotypic hook piece, is unfavorable for component transportation and on-the-spot component to deposit, increases a large amount of cost of transportation and component and deposits the cost, and this kind of connected mode can only be used for the opening cross-section simultaneously.
The unilateral fastening bolt disclosed in the prior art has problems, and the 'a standardized sleeve self-locking unilateral fastening bolt' disclosed in Chinese patent CN210859488U and the 'a unilateral fastening bolt' of Chinese patent CN111927857A both disclose an expansion bolt type unilateral fastening bolt, the sleeve needs to be sleeved on a screw rod, the diameter of the screw rod is smaller under the same opening, and the bearing capacity is lower; meanwhile, clamping force on a connected component is formed by expansion of the sleeve, the clamping force which can be provided by the expanded sleeve is limited, and when the connecting node bears the tensile force, the expanded sleeve is extremely easy to deform, so that the rigidity of the connecting node cannot be ensured.
Chinese patent CN204878188U discloses a "single-sided locking bolt", a screw of the single-sided fastening bolt is provided with a slot, a rotating block is rotatably disposed in the slot, the rotating block is completely embedded in the slot before rotating, and the rotating block protrudes out of the slot after rotating by self-weight. The grooving structure of the unilateral fastening bolt has higher requirement on the machining precision, has larger influence on the effective area of the screw rod, and has much reduced bearing capacity and poorer practical engineering application compared with the common bolt with the same diameter.
The Chinese patent CN209398691U discloses a one-way bolt with a controllable expansion piece, which comprises a screw rod, a nut, an upper expansion piece, a lower expansion piece, a spring, a limiting rod and a controller; the screw rod is of a rod-shaped structure with threads at one end of a cylindrical surface; marking one end with the thread as the A end of the screw rod; a through hole I is formed in the cylindrical surface of the end B of the screw; the section of the through hole I is rectangular; an upper expansion piece and a lower expansion piece are arranged in the through hole I; the integral structures of the upper expansion piece and the lower expansion piece are both L-shaped; the upper expansion piece and the lower expansion piece are buckled with each other through a spring; when the upper expansion piece and the lower expansion piece are completely buckled, the limiting rod is positioned in a limiting groove formed by the upper expansion piece and the lower expansion piece; the controller controls the buckling state of the upper expansion piece and the lower expansion piece. The through hole structure and the spring of the unilateral fastening bolt have higher requirements on the processing precision, and meanwhile, the effective area of the screw rod is greatly influenced by the through hole structure I, so that the bearing capacity of the unilateral fastening bolt is greatly reduced and the unilateral fastening bolt is poorer in practical engineering application compared with the common bolt with the same diameter.
Chinese patent CN111853024a discloses "a unilateral bolt", this unilateral bolt, including the screw rod that has the nut, the key is that the screw thread end of screw rod has a connection tail end, be equipped with two formula collapsible washers on the screw rod, whole packing ring and the nut that has the boss, be equipped with the position sleeve between two formula collapsible washers and whole packing ring, can carry out fastening connection with two components, the shearing force that the dislocation displacement of two components produced can act on the position sleeve, play the effect of protecting the screw rod, also can avoid having the dislocation space between two components simultaneously, but the way of this kind of position sleeve can not guarantee that the screw rod can not take place the chordwise deformation, and produce the screw rod easily and become flexible.
Chinese patent CN211874870U discloses "a novel unilateral bolt", this unilateral bolt, including the bolt main part, the nut, the packing ring, interior packing ring and locating part, this kind of unilateral bolt need set up the slotted hole on box column wall, the bolt main part is parallel to in the slotted hole inserts the box post with interior packing ring, and it is perpendicular with the slotted hole to rotate 90 messenger interior packing ring, the locating part has the slotted one side to extend inside the slotted hole, and block interior packing ring through the recess, the locating part is "ten" style of calligraphy with interior packing ring, fix interior packing ring this moment, this kind of technique has following problem: (1) The long round holes in the box-type column wall are large, so that the bearing capacity of the box-type column is reduced greatly; (2) The recess of locating part can only be retrained at the middle part on the long limit of inner washer both sides, and the locating part takes place to become flexible easily in the use and arouses unilateral bolt's fastening inefficacy, finally causes the structure safety problem. (3) Under the general condition, the bolt is installed again after two steel sheets of fastening connection need align, and after the bolt in this technique passed a steel sheet, the way of passing the screw rod with the second steel sheet again was not conform to actual steel construction installation condition, the unable installation of the second steel sheet or the condition of installation difficulty appear easily.
Chinese patent CN111059125a discloses "a T-shaped unilateral bolt fastener", this T-shaped unilateral bolt fastener for fixing the connecting piece, including the bolt, the bolt cover of locating on the bolt respectively, big washer and big nut, the bolt includes interconnect's bolt head and shank of bolt, the bolt head is after using the shank of bolt to set for the angle as the rotation of axle, the cross-section staggers with the bolt head cross-section in original position, the bolt head forms the cross with mounting hole and bolt cover, the big nut of screwing up at last, accomplish the installation, this kind of technique has following problem: the oblong holes in the box-type column wall are large, and the bearing capacity of the box-type column is greatly reduced.
The T-shaped unilateral bolt fastener is disclosed in Chinese patent CN211009504U, the bolt head can penetrate through rectangular or kidney-shaped mounting holes formed in a steel beam end plate and a steel upright post, the bolt head penetrates through the steel upright post to rotate for a set angle and can be contacted with the inner side face of the steel upright post, the screw is provided with a groove along the axial direction of the screw, and a connecting line perpendicular to the bottom face of the groove and the center of the cross section of the screw on the same cross section of the screw is arranged at an included angle with the long axis of the bolt head; the clamping block comprises a clamping block part, a clamping block convex rib is arranged on the bottom surface of the clamping block part, the clamping block part can be in sliding connection with the screw, clamping limbs fixedly connected with the clamping block part are arranged on two sides of the clamping block convex rib, the clamping limbs can be in contact with the end face of the bolt head, and the clamping block can be placed in the mounting hole and in contact with the hole face of the mounting hole; the lock nut can be connected with the screw thread, and the technology has the following problems: (1) Rectangular or kidney-shaped mounting holes formed in the steel beam end plates and the steel upright columns through which bolt heads can penetrate are large, and the bearing capacity of the steel beam end plates and the steel upright columns is greatly reduced; (2) The machining precision of each component is higher, and the installation is difficult.
The combined type unilateral bolt fastener is disclosed in Chinese patent CN210978135U, two clamping pieces are clamped inside a hole and the inner side of a sealing member, the edge distance width is larger than the diameter of the hole, and the top ends of the clamping pieces are provided with bolt head clamping blocks; the nut of the main screw is provided with a groove matched with the bolt head blocking piece, and the rotation of the screw is limited by the mutual embedding of the groove and the bolt head blocking piece; the limiting arc groove is wrapped into a hollow cylinder with the two clamping pieces, and the limiting arc groove is fixed with the base plate to form a limiting device. This technique has the following problems: (1) The mounting difficulty is high, and after the clamping pieces penetrate through the screw holes, the positions of the upper clamping piece and the lower clamping piece cannot be fixed; (2) When the main screw passes through the hole, the two clamping pieces are easy to fall out of the hole from the other side.
Disclosure of Invention
An object of the utility model is to provide a connection structure among assembly type structure can use in dry-type connection, steel column connection and beam column steel construction connection.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a single-sided fastening bolt assembly, comprising: the screw rod and the nut are sleeved with a limiting block on the screw rod; wherein the tail part of the screw is triangular; the limiting block is of a triangular prism structure, and the size of the limiting block is the same as that of the triangular tail of the screw; the center of the limiting block is provided with a screw hole for the screw rod to penetrate.
The screw rod penetrates through a connecting through hole of the component, and the connecting through hole is triangular; the limiting block is sleeved outside the screw rod in the component connecting through hole, and the outer side face of the limiting block is clamped in the triangular connecting through hole of the component and locked by the nut.
Furthermore, the connecting structure of the unilateral fastening bolt component in the fabricated building comprises two components with a plane plate structure and at least one unilateral fastening bolt component; wherein, the first and the second end of the pipe are connected with each other,
the planar plate structure of the member is provided with at least one connecting through hole which is triangular; the screw rod and the limiting block of the unilateral fastening bolt penetrate through the triangular connecting through hole on the plane plate structure of the two members, wherein the thickness of the limiting block is greater than that of the plane plate structure of one member; the limiting block is embedded in a triangular connecting through hole on the plane plate structure of the two components, the triangular tail part of the screw rod is exposed out of the port of the triangular connecting through hole of the plane plate structure, and the triangular tail part and the triangular connecting through hole are coaxially deflected by an angle, so that the tail part of the screw rod is stopped outside the plane plate structure of the components; the nut is sleeved on the head of the screw rod penetrating through the other side of the two component plane plate structures and locked, and the two components are connected into a whole.
Preferably, the height of the limiting block is smaller than or equal to the sum of the thicknesses of the two component plane plate structures.
Still further, unilateral fastening bolt subassembly connection structure in assembly type structure, it includes:
the connecting blocks on the end surfaces of the butt ends of the two precast concrete members are oppositely arranged up and down or left and right after the butt ends of the two precast concrete members abut against each other;
the connecting blocks are of a rectangular shell structure, and a triangular connecting hole is formed in the middle of the front end face of each connecting block; the front end surfaces of the connecting blocks are positioned on two sides of the precast concrete component;
the connecting plates are rectangular plates, two connecting through holes are arranged in the middle of each connecting plate at intervals, and the connecting through holes are triangular; each connecting plate is correspondingly arranged on two connecting blocks which are arranged up and down or left and right relatively on the end surfaces of the butt ends of the two precast concrete members after the butt ends of the two precast concrete members are abutted;
a plurality of unilateral fastening bolt subassemblies, unilateral fastening bolt subassembly's screw rod is worn to locate among connecting block connecting hole, the connecting plate connect the via hole, the stopper that the cover was located on the screw rod inlays to be located in connecting hole and the connecting via hole, and the stopper lateral surface card of triangular prism structure is located in triangular connecting hole and the connect the via hole to by the nut locking, as an organic whole with connecting plate and two connecting blocks.
Preferably, a plurality of grooves for embedding the connecting blocks are formed in the end side of the butt end face of the precast concrete member along the length direction.
And, unilateral fastening bolt subassembly connection structure in assembly type structure, it includes two precast concrete components, pre-buried steel sheet and unilateral fastening bolt subassembly:
the two precast concrete components are an upper precast concrete component and a lower precast concrete component respectively; wherein the content of the first and second substances,
at least two opposite end sides of the butt joint end surface of the upper precast concrete member are respectively provided with a plurality of accommodating grooves along the length direction;
a plurality of counter bores are formed in at least two opposite sides of the end face of the butt joint end of the lower precast concrete member along the length direction, and after the butt joint ends of the upper precast concrete member and the lower precast concrete member are abutted, the counter bores of the end face of the butt joint end of the lower precast concrete member correspond to the accommodating grooves of the end face of the butt joint end of the upper precast concrete member one by one; the counter bores are square;
the steel bar fixing device comprises two embedded steel plates, wherein at least two rows of steel bars are vertically welded on one side surface of each embedded steel plate along the length direction, a plurality of connecting through holes are formed in the two sides of each embedded steel plate at intervals along the length direction, and each connecting through hole is a triangle matched with the triangular prism structure of a limiting block of the unilateral fastening bolt assembly; the two embedded steel plates are respectively arranged on the end surfaces of the butt joint ends of the upper precast concrete component and the lower precast concrete component, the steel bars are embedded in the butt joint ends of the upper precast concrete component and the lower precast concrete component, and the connecting through holes are in one-to-one correspondence to the accommodating grooves of the upper precast concrete component and the counter bores of the lower precast concrete component;
after butt ends of the upper precast concrete component and the lower precast concrete component are abutted, two embedded steel plates on the end faces of the butt ends are attached up and down, a screw rod of the unilateral fastening bolt assembly respectively penetrates through connecting through holes in the two embedded steel plates, and a limiting block sleeved on the screw rod is embedded in the connecting through holes of the two embedded steel plates and is locked by a nut, so that the upper precast concrete component and the lower precast concrete component are integrated;
the tail of the screw is triangular, and the diameter of the bolt is smaller than or equal to the length of the side of the tail triangle.
Preferably, the precast concrete member is a precast concrete shear wall or a precast concrete column.
Furthermore, the connecting structure of the unilateral fastening bolt component in the assembly type building comprises a steel column, at least one steel beam vertically connected to one side surface of the steel column and the unilateral fastening bolt component;
the steel column is a rectangular steel tube, at least two connecting through holes are formed in one side face of the steel column, and the connecting through holes are triangles matched with the triangular prism structures of the limiting blocks;
the steel beam is an I-shaped steel beam or an H-shaped steel beam, one end of the steel beam is provided with a connecting steel plate, the connecting steel plate is provided with a connecting hole corresponding to the triangular connecting through hole on one side surface of the steel column, and the connecting hole is triangular; the connecting steel plate is tightly attached to the side face, provided with the connecting through hole, of the steel beam, the connecting through hole is aligned with the connecting hole, the screw rod of the unilateral fastening bolt assembly penetrates through the connecting through hole and the connecting hole, the limiting block sleeved on the screw rod is embedded in the connecting hole of the connecting steel plate and the connecting through hole in the side face of the steel column and is locked by the nut.
Additionally, unilateral fastening bolt subassembly connection structure in assembly type structure, it includes:
the two steel pipes are rectangular pipes, wherein at least two opposite pipe walls in the port at one end of the first steel pipe are respectively provided with an ear plate extending out of the port, the ear plates are provided with at least two connecting holes, correspondingly, the pipe walls are provided with connecting through holes corresponding to the connecting holes, and the connecting holes and the connecting through holes are triangular; a screw rod of the unilateral fastening bolt assembly is respectively arranged in the lug plate connecting hole and the first steel pipe connecting through hole in a penetrating way, and a limiting block sleeved on the screw rod is embedded in the connecting hole and the connecting through hole and is locked by a nut; and the second steel pipe is welded on the lug plate extending out of the port of the first steel pipe.
The utility model has the advantages that:
1. the general condition often adopts welded connection when two closed component connect, but welded connection construction difficulty, the difficult assurance of quality, with high costs of welded connection especially job site, and the unable condition that is applicable to and has closed component of current ordinary high strength bolt, and the utility model provides an unilateral fastening bolt can unilateral installation and will close the component and carry out fastening connection, just, reach ordinary high strength bolt's connection performance.
2. The fixed great screw that needs open in connecting elements of current unilateral fastening bolt, it is great to connecting elements's bearing capacity influence, and relevant standard is not suitable for to the injecing of bolt interval, and the utility model provides a unilateral fastening bolt only needs open less screw in connecting elements, and is less to connecting elements's bearing capacity influence, and relevant standard still is suitable for to the injecing of bolt interval.
3. The existing unilateral fastening bolt mainly has two categories: one type is an expansion bolt type, a sleeve is required to be sleeved on a screw, the diameter of the screw is reduced under the same opening, and the bearing capacity is lower; meanwhile, clamping force on the connected components is formed by expansion of the sleeves, the clamping force which can be provided by the expanded sleeves is limited, and when tension acts, the expanded sleeves are easy to deform, so that connection looseness is caused, and rigidity of the joints cannot be guaranteed. The other type is a very complex structure, the components forming the bolt are complex and fine, the machining of the bolt is difficult, the use cost is extremely high, and the bolt is not suitable for popularization and use in engineering. And the utility model provides an unilateral fastening bolt only needs to change the hexagon head of screw rod into the quadrangle head, does not basically change the original production mode of bolt, and product production line does not basically need to change, and the production line transformation is with low costs.
4. The utility model discloses both be applicable to and seal the steel member and connect and also be applicable to precast concrete member and connect, application scope is wide, and market prospect is good. Such as:
5. the connection of current precast concrete component adopts sleeve grout to connect, and sleeve grout is connected with high costs, and the engineering time is long, and the grout quality is difficult to guarantee, influences node strength, leaves the potential safety hazard for the building, and the utility model provides an unilateral fastening bolt and node structure can replace sleeve grout to connect, guarantees this type connected node's security.
6. Among the prior art, when sealing the steel member and being connected with the opening steel member, adopt welded connection usually, and the utility model provides an unilateral fastening bolt can realize bolted connection.
7. Seal steel member butt joint and adopt welding or flange joint usually, the utility model provides an unilateral fastening bolt makes to seal steel member butt joint and also can adopt bolted connection, just the utility model discloses a technical scheme for bolt quantity on the same cross-section of node position reduces for half of traditional connected mode, can effectively solve because the bolt collision problem that the bolt quantity on the same cross-section is more and produce, and the less closed component in cross-section is also suitable for, has also reduced the quantity that the bolt used simultaneously, the cost is reduced.
Drawings
FIG. 1 is a perspective view of an embodiment of the unilateral fastening bolt assembly of the present invention;
FIG. 2 is an exploded perspective view of an embodiment of the unilateral fastening bolt assembly of the present invention;
fig. 3 is a perspective view 1 of an embodiment 1 of a connection structure of the unilateral fastening bolt assembly in an assembly type building according to the present invention;
fig. 4 is a perspective view 2 of a connection structure example 1 of the unilateral fastening bolt assembly in the prefabricated building according to the present invention;
fig. 5 is an exploded perspective view of an embodiment 1 of a connection structure of the unilateral fastening bolt assembly in an assembly type building according to the present invention;
fig. 6 is a perspective view of a connection structure of the unilateral fastening bolt assembly of the present invention in an assembly type structure, in accordance with embodiment 2;
fig. 7 is an exploded perspective view of an embodiment 2 of the connecting structure of the unilateral fastening bolt assembly of the present invention in a prefabricated building;
fig. 8 is an exploded perspective view 2 of an embodiment 2 of a connection structure of the unilateral fastening bolt assembly in a prefabricated building according to the present invention;
fig. 9 is an exploded perspective view 3 of an embodiment 2 of a connection structure of the unilateral fastening bolt assembly in a prefabricated building according to the present invention;
fig. 10 is a perspective view of the connecting structure of the unilateral fastening bolt assembly of the present invention in the prefabricated building, which is shown in embodiment 3.
Fig. 11 is an exploded perspective view of an embodiment 3 of the connecting structure of the unilateral fastening bolt assembly of the present invention in a prefabricated building;
fig. 12 is an exploded perspective view of an embodiment 3 of the connecting structure of the unilateral fastening bolt assembly in the prefabricated building according to the present invention;
fig. 13 is a perspective view of the connecting structure of the unilateral fastening bolt assembly of the present invention in an assembly type building, according to embodiment 4;
fig. 14 is an exploded perspective view of an embodiment 4 of a connecting structure of the unilateral fastening bolt assembly in a prefabricated building according to the present invention;
fig. 15 is an exploded perspective view of an embodiment 4 of the connecting structure of the unilateral fastening bolt assembly in the prefabricated building according to the present invention;
fig. 16 is a perspective view of a connecting structure of the unilateral fastening bolt assembly of the present invention in a prefabricated building, according to an embodiment 5;
fig. 17 is an exploded perspective view of an embodiment 5 of a connecting structure of the unilateral fastening bolt assembly in a prefabricated building according to the present invention;
fig. 18 is an exploded perspective view of an embodiment 5 of a connecting structure of the unilateral fastening bolt assembly in a prefabricated building according to the present invention;
fig. 19 is a perspective view of a connecting structure of the unilateral fastening bolt assembly of the present invention in an assembly type structure as shown in example 6;
fig. 20 is an exploded perspective view of an embodiment 6 of the connection structure of the unilateral fastening bolt assembly in the prefabricated building according to the present invention.
Fig. 21 is a perspective view of a connecting structure of the unilateral fastening bolt assembly of the present invention in an assembly type structure, in accordance with an embodiment 7;
fig. 22 is an exploded perspective view of an embodiment 7 of the connecting structure of the unilateral fastening bolt assembly in the prefabricated building according to the present invention;
fig. 23 is an exploded perspective view of an embodiment 7 of the connecting structure of the unilateral fastening bolt assembly in the prefabricated building according to the present invention;
fig. 24 is an exploded perspective view of an embodiment 7 of the connecting structure of the unilateral fastening bolt assembly in the prefabricated building according to the present invention.
Detailed Description
Referring to fig. 1 and 2, the single-side fastening bolt assembly of the present invention includes: the screw rod 1, the nut 2 and a limited block 3 sleeved on the screw rod 1; wherein the content of the first and second substances,
the tail of the screw rod 1 is triangular;
the limiting block 3 is of a triangular prism structure, and the size of the limiting block is the same as that of the triangular tail 11 of the screw rod 1; the center of the limiting block 3 is provided with a screw hole 31 for the screw rod to penetrate.
The screw rod 1 is arranged in a connecting through hole 101 of the component 100 in a penetrating way, and the connecting through hole 101 is triangular; the limiting block 3 is sleeved outside the screw rod 1 in the component connecting through hole 101, and the outer side face of the limiting block 3 is clamped in the triangular connecting through hole 101 of the component 100 and locked by the nut 2.
Referring to fig. 1 to 5, the connection structure of the unilateral fastening bolt assembly in the prefabricated building according to the present invention includes two members 100 having a flat plate structure and at least one unilateral fastening bolt assembly; wherein the content of the first and second substances,
at least one connecting through hole 101 is arranged on the plane plate structure of the member 100, and the connecting through hole 101 is triangular; the screw 1 and the limiting block 3 of the unilateral fastening bolt penetrate through the triangular connecting through hole 101 on the plane plate structure of the two members 100, wherein the thickness of the limiting block 3 is greater than that of the plane plate structure of one member; the limiting block 3 is embedded in a triangular connecting through hole 101 on the plane plate structure of the two members 100, the triangular tail 11 of the screw rod 1 is exposed out of the port of the triangular connecting through hole 101 of the plane plate structure, and the triangular tail 11 and the triangular connecting through hole 101 deflect coaxially by an angle, so that the tail 11 of the screw rod 1 is stopped outside the plane plate structure of the members 100; the nut 2 is sleeved on the head of the screw 1 passing through the other side of the planar plate structure of the two members 100 and locked, so as to connect the two members 100 into a whole.
Preferably, the thickness of the limiting block 3 is less than or equal to the sum of the thicknesses of the planar plate structures of the two members 100.
Referring to fig. 6 to 9, the connection structure of the unilateral fastening bolt assembly in the prefabricated building of the present invention includes:
the connecting device comprises two precast concrete members 100, wherein a plurality of connecting blocks 6 are embedded in at least two opposite end sides of the butt end surfaces of the two precast concrete members 100 along the length direction, and the connecting blocks 6 are arranged up and down or left and right on the butt end surfaces of the two precast concrete members after the butt ends of the two precast concrete members abut against each other; in this embodiment, the precast concrete unit 100 is a precast concrete shear wall;
the connecting block 6 is of a rectangular shell structure, and a triangular connecting hole 61 is formed in the middle of the front end face of the connecting block; the front end surfaces of the connecting blocks 6 are positioned on two sides of the precast concrete member 100;
the connecting plates 7 are rectangular plates, two connecting through holes 71 are arranged at the middle parts of the connecting plates 7 at intervals, and the connecting through holes 71 are triangular; each connecting plate 7 is correspondingly arranged on two connecting blocks 6 which are arranged up and down or left and right relatively on the end surfaces of the butt ends of the two precast concrete members 100 after the butt ends of the two precast concrete members abut against each other;
a plurality of unilateral fastening bolt subassemblies, unilateral fastening bolt subassembly's screw rod 1 wears to locate in connecting block 6 connecting hole 61, connecting plate 7 connect the through hole 71, and stopper 3 that the cover was located on the screw rod 1 inlays and locates in connecting hole 61 and connect the through hole 71, and 3 lateral surfaces of stopper of triangular prism structure block locate triangle-shaped connecting hole 61 and connect the through hole 71 in to by the locking of nut 2, as an organic whole connecting plate 7 and two connecting blocks 6.
Preferably, a plurality of grooves 102 for the connection block 6 to be embedded are formed on the end side of the butt end surface of the precast concrete unit 100 along the length direction.
Referring to fig. 11 and 12, in the connection structure of the unilateral fastening bolt assembly in the prefabricated building according to the present invention, the precast concrete member 100 may also be a precast concrete column.
Referring to fig. 13-15, unilateral fastening bolt subassembly connection structure in assembly type structure, it includes two precast concrete component 100, pre-buried steel sheet 8 and unilateral fastening bolt subassembly:
two precast concrete members 100, which are an upper precast concrete member and a lower precast concrete member, respectively; wherein the content of the first and second substances,
at least two opposite end sides of the butt end face of the upper precast concrete member 1001 are provided with a plurality of accommodating grooves 102' along the length direction;
at least two opposite sides of the butt joint end face of the lower precast concrete member 1002 are respectively provided with a plurality of counter bores 103 along the length direction, and after the butt joint ends of the upper precast concrete member and the lower precast concrete member are abutted, the counter bores 103 of the butt joint end face of the lower precast concrete member correspond to the accommodating grooves 102' of the butt joint end face of the upper precast concrete member one by one; the counter bore 103 is square;
the steel bar fixing structure comprises two embedded steel plates 8, wherein at least two rows of steel bars 81 are vertically welded on one side surface of each embedded steel plate 8 along the length direction, a plurality of connecting through holes 82 are formed in the two sides of each embedded steel plate 8 at intervals along the length direction, and each connecting through hole 82 is a triangle matched with the triangular prism structure of a limiting block 3 of the unilateral fastening bolt assembly; the two embedded steel plates 8 are respectively arranged on the end surfaces of the butt joint ends of the upper precast concrete member and the lower precast concrete member, the reinforcing steel bars 81 are embedded in the butt joint ends of the upper precast concrete member and the lower precast concrete member, and the connecting through holes 82 are in one-to-one correspondence to the upper precast concrete member accommodating grooves 102' and the lower precast concrete member counter bores 103;
after butt ends of the upper precast concrete component and the lower precast concrete component are abutted, two embedded steel plates 8 on the end faces of the butt ends are vertically attached, a screw 1 of the unilateral fastening bolt assembly respectively penetrates through connecting through holes 82 on the two embedded steel plates 8, a limiting block 3 sleeved on the screw 1 is embedded in the connecting through holes 82 of the two embedded steel plates 8 and is locked by a nut 2, and the upper precast concrete component and the lower precast concrete component are integrated;
the tail part of the screw rod 1 is triangular, and the diameter of the screw rod 1 is less than or equal to the length of the side of the triangle at the tail part 11.
Referring to fig. 16 to 18, in an embodiment, the precast concrete unit is a concrete column.
Referring to fig. 19 and 20, the connection structure of the unilateral fastening bolt assembly in the prefabricated building according to the present invention includes a steel column 200, at least one steel beam 300 vertically connected to one side of the steel column 200, and the unilateral fastening bolt assembly;
the steel column 200 is a rectangular steel tube, at least two connecting through holes 201 are formed in one side surface of the steel column, and the connecting through holes 201 are triangles matched with the triangular prism structures of the limiting blocks 3;
the steel beam 300 is an I-shaped steel beam or an H-shaped steel beam, one end of the steel beam is provided with a connecting steel plate 301, the connecting steel plate 301 is provided with a connecting hole 302 corresponding to the triangular connecting through hole 201 on one side surface of the steel column 200, and the connecting hole 301 is triangular; the connecting steel plate 301 is tightly attached to the side face of the steel beam 300, where the connecting through hole 201 is arranged, the connecting through hole 201 is aligned with the connecting hole 302, the screw 1 of the unilateral fastening bolt assembly penetrates through the connecting through hole 201 and the connecting hole 302, and the limiting block 3 sleeved on the screw 1 is embedded in the connecting hole 302 of the connecting steel plate 301 and the connecting through hole 201 of the side face of the steel column 200 and is locked by the nut 2.
Referring to fig. 21 to 24, the connecting structure of the unilateral fastening bolt assembly in the prefabricated building of the present invention includes:
the two steel pipes are rectangular pipes, wherein at least two pipe walls opposite to each other in the port at one end of the first steel pipe 401 are respectively provided with an ear plate 12 extending out of the port, at least two connecting holes 121 are formed in the ear plate 12, correspondingly, the pipe walls are provided with connecting through holes 4011 corresponding to the connecting holes 121, and the connecting holes 121 and the connecting through holes 4011 are triangular; the screw rod 1 of the unilateral fastening bolt component is respectively arranged in the connecting hole 121 of the lug plate 12 and the connecting through hole 4011 of the first steel pipe 401 in a penetrating way, and the limiting block 3 sleeved on the screw rod 1 is embedded in the connecting hole 121 and the connecting through hole 4011 and is locked by the nut 2; the second steel tube 402 is welded to the ear plate 12 extending beyond the end of the first steel tube 401.
Preferably, the height of the limiting block is smaller than or equal to the sum of the thicknesses of the two planar plate structures.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (6)
1. A connection structure in a fabricated building, comprising:
the connecting blocks on the butt end faces of the two precast concrete members are oppositely arranged up and down or left and right after the butt ends of the two precast concrete members are abutted;
the connecting block is of a rectangular shell structure, and a triangular connecting hole is formed in the middle of the front end face of the connecting block; the front end surfaces of the connecting blocks are positioned on two sides of the precast concrete component;
the connecting plates are rectangular plates, two connecting through holes are arranged in the middle of each connecting plate at intervals, and the connecting through holes are triangular; each connecting plate is correspondingly arranged on two connecting blocks which are arranged up and down or left and right relatively on the end surfaces of the butt ends of the two precast concrete members after the butt ends of the two precast concrete members are abutted;
a plurality of unilateral fastening bolt subassemblies, unilateral fastening bolt subassembly includes: the screw rod and the nut are sleeved with a limiting block on the screw rod; wherein the tail part of the screw is triangular; the limiting block is of a triangular prism structure, and the size of the limiting block is the same as that of the triangular tail of the screw; a screw hole for the screw to penetrate is formed in the center of the limiting block;
the screw rod of the unilateral fastening bolt assembly is arranged in the connecting block connecting hole and the connecting plate connecting through hole in a penetrating manner, the limiting block sleeved on the screw rod is embedded in the connecting hole and the connecting through hole, the outer side surface of the limiting block of the triangular prism structure is clamped in the triangular connecting hole and the connecting through hole and is locked by the nut, and the connecting plate and the two connecting blocks are integrated.
2. The connection structure in a fabricated building according to claim 1, wherein the end sides of the butt end surfaces of the precast concrete members are provided with a plurality of grooves in the length direction, in which the connection blocks are inserted.
3. The utility model provides a connection structure among assembly type structure which characterized in that, includes two precast concrete components, pre-buried steel sheet and unilateral fastening bolt subassembly:
the one-sided fastening bolt assembly includes: the screw rod and the nut are sleeved with a limiting block on the screw rod; wherein the tail part of the screw rod is triangular; the limiting block is of a triangular prism structure, and the size of the limiting block is the same as that of the triangular tail of the screw; a screw hole for the screw to penetrate through is formed in the center of the limiting block;
the two precast concrete components are an upper precast concrete component and a lower precast concrete component respectively; wherein the content of the first and second substances,
at least two opposite end sides of the butt joint end face of the upper precast concrete member are provided with a plurality of grooves along the length direction;
a plurality of counter bores are formed in at least two opposite sides of the end face of the butt joint end of the lower precast concrete member along the length direction, and after the butt joint ends of the upper precast concrete member and the lower precast concrete member are abutted, the counter bores of the end face of the butt joint end of the lower precast concrete member correspond to the grooves of the end face of the butt joint end of the upper precast concrete member one by one; the counter bores are square;
the steel bar fixing device comprises two embedded steel plates, wherein at least two rows of steel bars are vertically welded on one side surface of each embedded steel plate along the length direction, a plurality of connecting through holes are formed in the two sides of each embedded steel plate at intervals along the length direction, and each connecting through hole is a triangle matched with the triangular prism structure of a limiting block of the unilateral fastening bolt assembly; the two embedded steel plates are respectively arranged on the end surfaces of the butt joint ends of the upper precast concrete component and the lower precast concrete component, the steel bars are embedded in the butt joint ends of the upper precast concrete component and the lower precast concrete component, and the connecting through holes are in one-to-one correspondence to the grooves of the upper precast concrete component and the counter bores of the lower precast concrete component;
after butt ends of the upper precast concrete component and the lower precast concrete component are abutted, two embedded steel plates on the end faces of the butt ends are attached up and down, a screw rod of the unilateral fastening bolt assembly respectively penetrates through connecting through holes in the two embedded steel plates, and a limiting block sleeved on the screw rod is embedded in the connecting through holes of the two embedded steel plates and is locked by a nut, so that the upper precast concrete component and the lower precast concrete component are integrated;
the tail of the screw is triangular, and the diameter of the screw is less than or equal to the length of the side of the tail triangle.
4. The connection structure in a fabricated building according to claim 1 or 3, wherein the precast concrete member is a precast concrete shear wall or a precast concrete column.
5. A connecting structure in an assembly type building is characterized by comprising a steel column, at least one steel beam vertically connected to one side surface of the steel column and a unilateral fastening bolt assembly;
the one-sided fastening bolt assembly includes: the screw rod and the nut are sleeved with a limiting block on the screw rod; wherein the tail part of the screw is triangular; the limiting block is of a triangular prism structure, and the size of the limiting block is the same as that of the triangular tail of the screw; a screw hole for the screw to penetrate is formed in the center of the limiting block;
the steel column is a rectangular steel pipe, at least two connecting through holes are formed in one side face of the steel column, and the connecting through holes are triangles matched with the triangular prism structures of the limiting blocks;
the steel beam is an I-shaped steel beam or an H-shaped steel beam, one end of the steel beam is provided with a connecting steel plate, the connecting steel plate is provided with a connecting hole corresponding to the triangular connecting through hole on one side surface of the steel column, and the connecting hole is triangular; the connecting steel plate is tightly attached to the side face, provided with the connecting through hole, of the steel beam, the connecting through hole is aligned with the connecting hole, the screw rod of the unilateral fastening bolt assembly penetrates through the connecting through hole and the connecting hole, and the limiting block sleeved on the screw rod is embedded in the connecting hole of the connecting steel plate and the connecting through hole in the side face of the steel column and is locked by the nut.
6. A connecting structure in a fabricated building, comprising:
unilateral fastening bolt subassembly includes: the screw rod and the nut are sleeved with a limiting block on the screw rod; wherein the tail part of the screw is triangular; the limiting block is of a triangular prism structure, and the size of the limiting block is the same as that of the triangular tail of the screw; a screw hole for the screw to penetrate through is formed in the center of the limiting block;
the two steel pipes are rectangular pipes, wherein at least two opposite pipe walls in the port at one end of the first steel pipe are respectively provided with an ear plate extending out of the port, the ear plates are provided with at least two connecting holes, correspondingly, the pipe walls are provided with connecting through holes corresponding to the connecting holes, and the connecting holes and the connecting through holes are triangular; the screw rod of the unilateral fastening bolt assembly is respectively arranged in the lug plate connecting hole and the first steel pipe connecting through hole in a penetrating way, and the limiting block sleeved on the screw rod is embedded in the connecting hole and the connecting through hole and is locked by a nut; and the second steel pipe is welded on the lug plate extending out of the port of the first steel pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121334536.9U CN218028189U (en) | 2021-06-16 | 2021-06-16 | Connection structure in assembly type structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121334536.9U CN218028189U (en) | 2021-06-16 | 2021-06-16 | Connection structure in assembly type structure |
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