CN109235640B - Pin type connecting structure between modularized steel structural members for building - Google Patents
Pin type connecting structure between modularized steel structural members for building Download PDFInfo
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- CN109235640B CN109235640B CN201810576715.XA CN201810576715A CN109235640B CN 109235640 B CN109235640 B CN 109235640B CN 201810576715 A CN201810576715 A CN 201810576715A CN 109235640 B CN109235640 B CN 109235640B
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- bottom plate
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- lifting lugs
- building
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 claims description 24
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2418—Details of bolting
Abstract
The invention discloses a pin type connecting structure between modularized steel structural members for building, which comprises connecting units taking lifting lugs as connecting nodes, wherein a plurality of connecting units are used for connecting a plurality of columnar bodies with each other, the lifting lugs at the two ends of the connecting units are end lifting lugs, the lifting lugs between the connecting units are middle lifting lugs, the lifting lugs are hollow frame structures, the upper side and the lower side of the lifting lugs are respectively provided with an alignment connecting piece, screw rods penetrate through the alignment connecting pieces, the screw rods between the connecting units are connected with each other through nuts, one end of the screw rod penetrating through the end lifting lugs at the lower end is fixedly connected with an embedded part, and the screw rods and the nuts are used for connecting the columnar bodies and the connecting units with each other and providing pre-stress tension; the aligning connecting piece comprises a bottom plate connected with the lifting lug, a frustum-shaped positioning block is arranged on the bottom plate, and through holes, the positions and the sizes of which are respectively corresponding to the screw rod, are respectively arranged on the bottom plate and the positioning block.
Description
Technical Field
The invention relates to the technical field of building components, in particular to a skewer type connecting structure between modularized steel structural members for building.
Background
The prior high-rise construction mainly adopts a method of casting concrete on site, and the construction process of erecting templates, laying reinforcing steel bars, casting concrete and removing the template is generally carried out on site. The site construction procedure and management are complex, and the construction cost is high; the building site is not easy to clean because of more building rubbish; noise in site construction seriously affects life and work of surrounding residents, and is not beneficial to environmental protection; the on-site construction quality is not easily ensured due to the influence of factors such as building materials, climate conditions, on-site management, worker quality and the like. The method of constructing a building structure by in situ joining of prefabricated building elements overcomes many of the above-mentioned disadvantages. However, there is a need for a connection between prefabricated building elements that ensures a firm connection with each other.
In the prior art, patent documents CN201738600U and CN104314314a respectively disclose such assembled monolithic building, which comprises an upper layer prefabricated part and a lower layer prefabricated part, wherein a reinforcing bar sleeve is embedded at the bottom of the upper layer prefabricated part, a grouting hole is formed in the side wall of one end, close to the reinforcing bar inlet, of the reinforcing bar sleeve, a grouting hole is formed in the side wall of one end, far away from the reinforcing bar inlet, of the reinforcing bar sleeve, and connecting reinforcing bars suitable for extending into the reinforcing bar sleeve are fixedly arranged at the upper end of the lower layer prefabricated part corresponding to the reinforcing bar sleeve. During assembly, the connecting steel bars are inserted into the steel bar sleeves, cement mortar is injected into the steel bar sleeves from the grouting holes and is solidified, so that the upper-layer prefabricated components and the lower-layer prefabricated components are connected. The longitudinal connecting steel bars on the lower prefabricated component of the structure are exposed outside the contour of the component, so that the lower prefabricated component is easy to collide and damage in manufacturing and transportation, and the increased width of the steel bars also enables the transportation to be easy to be ultra-wide. The operating personnel are easily scratched during installation, and potential safety hazards exist. Further, the portion of the prior art connection structure where the reinforcing bars extend into the sleeve is not prestressed, and the connection strength of this connection portion becomes a weak point of the overall construction.
The most similar realization scheme of the invention in the building component of the existing steel frame structure is a connecting node applied to the modularized steel structure building, which is used for connecting an upper module and a lower module which are composed of four frame columns and eight frame beams, wherein the upper module and the lower module respectively comprise two module units, the frame column and the frame beam of each module unit are connected in a welding mode, one side of the frame column of each module unit is provided with an opening, the bottom of the frame column is welded with a sealing plate, and the sealing plate and the frame column are respectively provided with a first horizontal bolt hole and a first vertical bolt hole; the upper module and the lower module are connected with each other through a cross-shaped node plate and high-strength bolts, the cross-shaped node plate is connected with the high-strength bolts, the cross-shaped node plate comprises a horizontal plate and a vertical plate, and second horizontal bolt holes and second vertical bolt holes are respectively formed in the horizontal plate and the vertical plate. The module connecting structure in the mode can not simultaneously solve the problems of insufficient shearing resistance, poor integration and difficult alignment between the upper module and the lower module of the structure connecting system, and field welding is needed. The connecting mode mainly has the defects of complex construction, low construction efficiency, easy deformation of welding parts and the like.
The ideal connection system of the modularized building accords with the characteristics of an assembled building, has the characteristics of good integration, high connection speed and good mechanical property, but the current common connection system cannot simultaneously have the characteristics, and prevents the development process of the modularized steel structure building from the bottom layer to the multi-story and high-rise building, so the design of the connection system between modules is a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a skewpin type connecting structure between modular steel structural members for building, which has the advantages of simple structure, reliable force transmission, strong structural integrity and the like, can be used for connecting steel structural members without welding, and can be perfectly matched with the interior decoration of the modules when all connecting works are completed outside the modules.
In order to achieve the above purpose, the technical scheme of the invention is to design a pin type connecting structure between modularized steel structural members for construction, the connecting structure comprises connecting units taking lifting lugs as connecting nodes, a plurality of connecting units are used for connecting a plurality of columnar bodies with each other, the lifting lugs at two ends of the plurality of connecting units are end lifting lugs, the lifting lugs between the plurality of connecting units are middle lifting lugs, the lifting lugs are hollow frame structures, alignment connecting pieces are respectively arranged at the upper side and the lower side of the lifting lugs, screw rods penetrate through the alignment connecting pieces, the screw rods between the plurality of connecting units are connected with each other through nuts, one end of the screw rod penetrating through the end lifting lugs at the lower end is fixedly connected with an embedded part, and the screw rods and the nuts are used for connecting the plurality of columnar bodies with each other and providing pre-stress tension; the aligning connecting piece comprises a bottom plate connected with the lifting lug, a frustum-shaped positioning block is arranged on the bottom plate, and through holes, the positions and the sizes of which are respectively corresponding to the screw rod, are respectively arranged on the bottom plate and the positioning block.
In order to facilitate processing and installation operation, the preferred technical scheme is that the lifting lug is of a rectangular frame structure, holes are formed in the upper side, the lower side and the side face of the lifting lug of the rectangular frame structure, and the holes are arranged in the upper side and the lower side and are used for embedding the bottom plate.
In order to facilitate connection and ensure sufficient strength and stability of the connection part, a further preferred technical scheme is that the end lifting lug is provided with a bottom plate at the lower end or the upper end thereof, a frustum-shaped positioning block arranged on the bottom plate protrudes towards the inside of the frame, the upper side or the lower side of the other end of the end lifting lug is respectively provided with two bottom plates, and the frustum-shaped positioning block arranged on the two bottom plates protrudes towards the inside of the frame and the outside of the frame respectively.
In order to facilitate connection and ensure that the connection part has enough strength and stability, a further preferable technical scheme is that the lower end and the upper end of the middle lifting lug are respectively provided with two bottom plates, and frustum-shaped positioning blocks arranged on the two bottom plates are respectively protruded to the inside of the frame and the outside of the frame.
In order to facilitate connection and ensure sufficient strength and stability of the connection part, a further preferable technical scheme is that the frustum-shaped positioning block arranged on the bottom plate is two trapezoid frustum-shaped positioning blocks.
In order to facilitate connection, ensure that the connection part has enough strength and stability, facilitate connection of symmetrically arranged alignment connecting pieces together, and further preferably, the lifting lug is provided with connecting holes with corresponding positions and sizes on the bottom plates of the upper bottom plate and the lower bottom plate respectively, and the two bottom plates are connected between the connecting holes through connecting bolts and nuts.
In order to facilitate connection, ensure sufficient strength and stability of the connection part, facilitate relative adjustment between the mutually connected columnar bodies, and adjustment between the connecting screw rods, further preferred technical scheme is that the columnar bodies connected to the upper end and the lower end of the lifting lug are square pipe columnar bodies, a gap is arranged between the edge of the bottom plate and the inner wall of the square pipe, and a gap is also arranged between the screw rods and the through holes through which the screw rods pass.
In order to facilitate connection and ensure sufficient strength and stability of the connection portion, a further preferred embodiment is that the end lifting lug of the lower end is welded to the pillar of the lower end.
The invention has the advantages and beneficial effects that: the skewer type connecting structure among the modularized steel structural members for the building is free of welding in connection among the provided steel structural member modules, has the advantages of simple structure, reliable force transmission, strong structural integrity and the like, and all connecting works are completed outside the modules and can be perfectly matched with the interior decoration of the modules. The construction method shortens the construction period, improves the construction efficiency, and is particularly suitable for buildings with poor site construction environment and special requirements on construction time. The connection nodes of the structure are key points of the modularized assembled building, and the long-term structural stability of the building during the use period is ensured while the rapid construction of the assembled building is required. Therefore, the connection node mainly solves the integrated design, integrates the lifting, connection, bending resistance, shearing resistance and earthquake resistance of the connection part of the structural system, and also meets the accurate positioning problem of modularized assembly.
The utility model provides a modular steel structure building structure, including the steel-pipe column of heavy steel structure, the steel-pipe column of heavy steel structure, the modular building lug of a kind of structure that is used for the pin connection structure, the structure connection structure of the modular steel structure that can solve simultaneously needs welding, shear resistance is not enough, the integration is poor and go up and down the difficult scheduling problem of counterpoint between the module, improved the dismouting speed and the security performance of modular steel structure building, for by low-rise building to many, high-rise building development provides the structural connection means of integration.
The skewer type connecting structure can realize a high-assembled building capable of being assembled quickly and has the characteristics of high construction speed, high standardization level and sustainable full life cycle. The construction method of the modularized steel structure building is different from that of the traditional building, standardized modules are prefabricated in factories, and are transported to a construction site for connection assembly after production is completed, and the whole construction process adopts dry operation, so that a large amount of manpower and material resources can be saved.
Drawings
FIG. 1 is a schematic axial view of a skewer type connection between modular steel structural members for construction according to the present invention;
FIG. 2 is an enlarged partial schematic view of 3 of the connection units of FIG. 1;
FIG. 3 is a top view of the shackle of FIG. 2;
FIG. 4 is a cross-sectional view A-A of the shackle of FIG. 3;
FIG. 5 is a B-B cross-sectional view of the shackle of FIG. 3;
FIG. 6 is a C-C cross-sectional view of the shackle of FIG. 4;
FIG. 7 is a side view of the alignment connector on the end tab of FIG. 2;
FIG. 8 is a cross-sectional view A-A of the end tab of FIG. 7 with the alignment connector attached thereto;
FIG. 9 is a cross-sectional view B-B of the end tab of FIG. 7 with the alignment connector attached thereto;
FIG. 10 is a side view of the alignment connector on the central shackle of FIG. 2;
FIG. 11 is a cross-sectional view A-A of the attachment of the alignment connector to the middle end shackle of FIG. 10;
fig. 12 is a B-B cross-sectional view of the attachment of the alignment connector to the central shackle of fig. 10.
In the figure: 1. lifting lugs; 1-1, an end lifting lug; 1-2, a middle lifting lug; 1-3, a cavity; 2. a columnar body; 3. an alignment connection; 3-1, a bottom plate; 3-2, positioning blocks; 3-3, connecting holes; 4. a screw; 5. a nut; 6. an embedded part; 7. and a through hole.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 12, the invention is a pin-type connection structure between modularized steel structural members for construction, the connection structure comprises connection units taking lifting lugs 1 as connection nodes, a plurality of connection units are used for connecting a plurality of columnar bodies 2 with each other, the lifting lugs 1 positioned at two ends of the plurality of connection units are end lifting lugs 1-1, the lifting lugs 1 positioned between the plurality of connection units are middle lifting lugs 1-2, the lifting lugs 1 are hollow frame structures, the upper side and the lower side of the lifting lugs are respectively provided with an alignment connection piece 3, screw rods 4 penetrate between the alignment connection pieces, the screw rods 4 between the plurality of connection units are connected with each other through nuts 5, one ends of the screw rods 4 penetrating through the end lifting lugs 1-1 at the lower end are fixedly connected with embedded parts 6, and the screw rods 4 and the nuts 5 are used for connecting the plurality of columnar bodies 2 with each other and providing pre-stress tension; the alignment connecting piece 3 comprises a bottom plate 3-1 connected with the lifting lug 1, a frustum-shaped positioning block 3-2 is arranged on the bottom plate 3-1, and through holes 7, the positions and the sizes of which are respectively corresponding to the through holes through which the screw 4 passes, are respectively arranged on the bottom plate 3-1 and the positioning block 3-2.
The screw 4 adopts a standard full-thread shear screw, and the model of the standard full-thread shear screw can be determined according to structural calculation, so that the size of the middle through hole 7 of the alignment connecting piece and the model of the shear fastener and the nut 5 are determined. The nut 5 is a standard long connecting nut, and the type of the nut is determined according to the standard full-thread shearing-resistant screw. For convenient transportation, the length of the standard full-thread shear screw rod is shorter, and a long connecting nut is adopted for lengthening the shorter standard full-thread shear screw rod.
In order to facilitate processing and installation operation, the preferred embodiment of the invention is that the lifting lug 1 is of a rectangular frame structure, the upper side, the lower side and the side surfaces of the lifting lug 1 of the rectangular frame structure are respectively provided with a cavity 1-3, and the upper and the lower cavities 1-3 are used for embedding the bottom plate 3-1.
In order to facilitate connection and ensure sufficient strength and stability of the connection portion, a further preferred embodiment of the present invention is that the end lifting lug 1-1 is provided with a bottom plate 3-1 at its lower or upper end, a frustum-shaped positioning block 3-2 provided on the bottom plate is protruded toward the inside of the frame, and the end lifting lug 1-1 is provided with two bottom plates 3-1 at its upper or lower side of the other end, respectively, and the frustum-shaped positioning blocks 3-2 provided on the two bottom plates 3-are protruded toward the inside of the frame and the outside of the frame, respectively.
In order to facilitate connection and ensure sufficient strength and stability of the connection portion, a further preferred embodiment of the present invention is that two base plates 3-1 are respectively provided at the lower and upper ends of the central lifting lug 1-2, and a positioning block 3-2 in the shape of a truncated cone provided on the two base plates 3-1 is protruded toward the inside of the frame and the outside of the frame, respectively.
In order to facilitate connection and ensure sufficient strength and stability of the connection portion, a further preferred embodiment of the present invention is that the frustum-shaped positioning block 3-2 provided on the base plate 3-1 is two trapezoid frustum-shaped positioning blocks 3-2.
In order to facilitate connection and ensure sufficient strength and stability of the connection part and facilitate connection of symmetrically arranged alignment connection pieces 3, a further preferred embodiment of the present invention is that the lifting lug 1 is provided with connection holes 3-3 corresponding to the positions and the sizes of the bottom plates 3-1 of the upper bottom plate and the lower bottom plate, and the two bottom plates 3-1 are connected between the connection holes 3-3 through connection bolts and nuts.
In order to facilitate the connection, ensure sufficient strength and stability of the connection portion, and facilitate the relative adjustment between the interconnected columns 2 and the adjustment between the connecting screws 4, a further preferred embodiment of the present invention is that the columns 2 connected to the upper and lower ends of the lifting lugs 1 are square-tube columns, a gap is provided between the inner wall of the square tube and the edge of the bottom plate 3-2, and a gap is also provided between the screw 4 and the through hole 7 through which the screw passes.
In order to facilitate the connection and ensure sufficient strength and stability of the connection portion, a further preferred embodiment of the present invention is that the lower end lifting lug 1-1 is welded to the lower cylindrical body 2.
The connection operation between the columnar bodies 2 can be carried out according to the following operation steps, the lowest lifting lug 1 is welded on the prefabricated columnar bodies 2 through the alignment connecting piece 3 and the supporting piece, after the foundation section is installed, the screw rod 4, namely the prestress pull rod, is connected by the nut 5, the length of the screw rod 4 connected with the nut 5 is longer than that of the columnar bodies 2, the square-tube-shaped columnar bodies 2 are sleeved along the screw rod, the next lifting lug 1 and the alignment connecting piece 3 are sleeved at the upper end of the columnar bodies 2, and the operation is repeated until the installation of the end lifting lug 1 at the upper end is completed.
Prestress application detection report
Through modeling the building and applying corresponding load to the building, in PKPM calculation results, the axial force (mainly tensile force) of the bottom column is extracted, and then, through applying prestress, most of the tensile force is counteracted, and meanwhile, the anti-overturning capacity of the building is improved, namely, the influence of bending moment effect can be reduced, so that the building is integrated.
Through PKPM calculation, the maximum pulling force in a layer of column is extracted to be F=61.3 kN, and the maximum pulling force is calculated according to prestress counteracting 85%, namely the prestress to be applied is required to be F=50.0 kN.
The pre-stressing is applied by adopting an anchor rod and a nut, in order to reduce the pre-stressing loss, an anti-slip washer and a hexagonal iron toothed anti-slip flange nut are adopted, a certain number of strain measuring points are arranged on the anchor rod, and the pre-stressing is calculated through strain. The diameter of the anchor removing rod in the detection is 16mm,modulus of elasticityFrom f= EeA, me=1244 can be calculated.
1. Data result of prestress application of only one layer of column
4 measuring points are uniformly arranged on one layer of anchor rod, and effective measuring point data are obtained as follows (u epsilon)
(uε)
2. Prestress application data result of two-layer column
1. The two layers of anchor rods are uniformly provided with 4 measuring points respectively, and effective measuring point data are obtained as follows
/>
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (5)
1. The utility model provides a modular steel structure piece for building's grafting pin formula connection structure between, its characterized in that, connection structure includes the connecting unit that uses the lug as the connected node, and a plurality of connecting unit is used for connecting a plurality of column each other, and the lug that is located a plurality of connecting unit both ends is the tip lug, and the lug that is located between a plurality of connecting unit is the middle part lug, the lug is hollow frame construction, and the upper and lower both sides of lug are equipped with counterpoint connecting piece respectively, pass between the counterpoint connecting piece has the screw rod, and the screw rod between a plurality of connecting unit is connected through the nut each other, and wherein the one end and the built-in part fixed connection of the screw rod that passes the tip lug of lower extreme, screw rod and nut are used for interconnect between a plurality of column and the connecting unit and provide the pre-stress pulling force; the alignment connecting piece comprises a bottom plate connected with the lifting lug, a frustum-shaped positioning block is arranged on the bottom plate, through holes which are respectively arranged on the bottom plate and the positioning block and have positions and sizes corresponding to the screw rod,
the lifting lug is of a rectangular frame structure, the upper and lower sides and the side surfaces of the lifting lug of the rectangular frame structure are provided with hollows, the hollows arranged at the upper and lower sides are used for embedding the bottom plate,
the lower end or the upper end of the end lifting lug is provided with a bottom plate, a frustum-shaped positioning block arranged on the bottom plate protrudes towards the inside of the frame, the upper side or the lower side of the other end of the end lifting lug is respectively provided with two bottom plates, the frustum-shaped positioning block arranged on the two bottom plates protrudes towards the inside of the frame and the outside of the frame respectively,
two bottom plates are respectively arranged at the lower end and the upper end of the middle lifting lug, and frustum-shaped positioning blocks arranged on the two bottom plates are respectively protruded towards the inside of the frame and the outside of the frame.
2. The skewer-type connection structure between modular steel structural members for construction according to claim 1, wherein the frustum-shaped positioning block provided on the bottom plate is two trapezoidal frustum-shaped positioning blocks.
3. The skewer-type connecting structure between modular steel structural members for building according to claim 1, wherein the bottom plates of the lifting lug, which are provided with the upper bottom plate and the lower bottom plate, are respectively provided with connecting holes with corresponding positions and sizes, and the two bottom plates are connected through connecting bolts and nuts between the connecting holes.
4. The skewer-type connecting structure between modular steel structural members for building according to claim 1, wherein said columnar bodies connected to the upper and lower ends of said lifting lugs are square tube-type holes with gaps therebetween.
5. The skewer-type connection structure among modular steel structural members for building according to claim 4, wherein the end lifting lugs at the lower end are welded with the columnar bodies at the lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576715.XA CN109235640B (en) | 2018-06-05 | 2018-06-05 | Pin type connecting structure between modularized steel structural members for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810576715.XA CN109235640B (en) | 2018-06-05 | 2018-06-05 | Pin type connecting structure between modularized steel structural members for building |
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| Publication Number | Publication Date |
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| CN109235640A CN109235640A (en) | 2019-01-18 |
| CN109235640B true CN109235640B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810576715.XA Active CN109235640B (en) | 2018-06-05 | 2018-06-05 | Pin type connecting structure between modularized steel structural members for building |
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| CN113401498A (en) * | 2021-07-21 | 2021-09-17 | 中交一公局重庆城市建设发展有限公司 | Three-dimensional storage and transfer frame for separated plate components |
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