CN112854575A - Detachable floor connecting node for modular steel structure and manufacturing method thereof - Google Patents
Detachable floor connecting node for modular steel structure and manufacturing method thereof Download PDFInfo
- Publication number
- CN112854575A CN112854575A CN202110163508.3A CN202110163508A CN112854575A CN 112854575 A CN112854575 A CN 112854575A CN 202110163508 A CN202110163508 A CN 202110163508A CN 112854575 A CN112854575 A CN 112854575A
- Authority
- CN
- China
- Prior art keywords
- ceiling
- plate
- bolt
- cover plate
- beam connecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/10—Load-carrying floor structures formed substantially of prefabricated units with metal beams or girders, e.g. with steel lattice girders
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
- E04B5/14—Load-carrying floor structures formed substantially of prefabricated units with beams or girders laid in two directions
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a detachable floor connecting node for a modular steel structure and a manufacturing method thereof. The connection node comprises a module ceiling, a module floor and a ceiling beam connection assembly. The invention sets the detachable floor connecting structure at the joint between the adjacent module ceiling beams, and enhances the horizontal connection between the module units, thereby solving the problems that the module steel structure deforms too much in a plane and the rigidity in the plane of the floor is insufficient due to the discontinuity of the floor when the module units on the same layer are spliced; meanwhile, the welding part of the connecting structure is completed in a factory in advance, the high-strength bolt is adopted for field assembly after the connecting structure is transported to the field, no welding is carried out on the field, when the service life of the structure is due and the structure needs to be disassembled, the high-strength bolt is unscrewed, and the adjacent module units can be separated.
Description
Technical Field
The invention belongs to the field of constructional engineering, and particularly relates to a detachable floor connecting node for a modular steel structure and a manufacturing method of the detachable floor connecting node.
Background
The assembled steel structure system is a building produced by assembling house units or components manufactured according to the specifications of unified and standard building parts and transporting the prefabricated building units or components to a construction site after prefabrication production in a factory, and has the advantages of energy conservation, environmental protection, high construction speed, high industrialization degree and the like, and the development of an industrialized assembled steel structure system is an urgent requirement for green buildings and building industrialization in China. The modular steel structure is a highly integrated assembly type building, components such as beams, plates, columns and walls in module units are prefabricated in a factory, single room assembly and decoration are completed, the prefabricated modular units are transported to a project site to be stacked and connected among the module units, and the modular steel structure has the advantages of short production period, low cost, low labor intensity, high quality, environmental friendliness and the like, is a centralized embodiment of the industrial advantages of buildings, and has a wide development prospect.
In order to fully exert the advantage of the on-site quick installation of the modular steel structure, the connecting joint between the modular units only exists at the position of a corner column at present, namely the beam column joint of the traditional structure, and the interlayer horizontal force is completely transmitted by the connecting joint. The connection between the module units is mostly connected by corner fittings, and the connection is not arranged at other positions, so that the slab and the roof slab between the module units of the module steel structure are discontinuous. Due to the dense urban population, strict control of construction environment and construction area and other factors, the demand for high-rise buildings is increasing day by day. The adjacent units of existing modularization steel construction are only connected at the corner post position usually, and the floor plane is interior discontinuous, and the hyperstatic number of times is limited, and the not enough of rigidity in the structural plane leads to the whole antidetonation of structure relatively poor, can't adapt to high-rise modularization steel construction building's development trend and application demand.
With the gradual expansion of the application range of the module steel structure in China, how to strengthen the horizontal relation of the module units as much as possible while ensuring the on-site rapid assembly and improve the rigidity in the plane of the module building, so that the deformation and the horizontal connection stress of the module units under the horizontal load are more uniform, and the module steel structure is a key problem to be solved urgently in high-level development. Therefore, the engineering needs to provide a full-bolt assembly type connecting node which is convenient to construct, can effectively improve the in-plane rigidity of the floor slab with the modular steel structure and is low in comprehensive cost, and the stress performance and the integrity of the modular steel structure are improved.
Disclosure of Invention
The invention aims to overcome the problems of discontinuity in the floor surface and insufficient rigidity in the plane of the existing modular steel structure, and provides a detachable floor system connecting node which is convenient to construct and high in bearing performance and is applied to a modular steel structure and a construction method thereof.
In one aspect, the present invention provides a demountable floor connection node for a modular steel structure, comprising a module ceiling, a module floor, and a ceiling beam connection assembly; wherein:
ceiling roof beam coupling assembling includes quarter beam, roof beam connecting plate, horizontally connect apron and high strength bolt, the quarter beam welds in advance on the ceiling secondary beam, the roof beam connecting plate welds in advance between ceiling roof beam and quarter beam, reserve the bolt hole on the roof beam connecting plate, and it is fixed with fixing device for the nut to reserve bolt hole department inboard the roof beam connecting plate, horizontally connect the connection of apron and be formed between the adjacent module ceiling roof beam of level butt joint horizontally connect corresponding bolt hole is reserved to corresponding position on apron and the roof beam connecting plate, and will through high strength bolt horizontally connect the apron with the roof beam connecting plate links together.
Furthermore, the bolts are large hexagonal high-strength bolts, and the nuts on the inner side of the beam connecting plate are fixed at the reserved bolt holes on the inner side by the aid of the fixing devices in a spot welding mode, so that free rotation of the nuts is limited, and mounting counter force is provided.
Furthermore, the beam connecting plate and the horizontal connecting cover plate are prefabricated by a steel plate factory after being designed with regular section sizes.
On the other hand, the invention provides a manufacturing method of the detachable floor connecting node for the modular steel structure, which comprises the following steps of:
step 1: the method comprises the following steps that a module ceiling, a module floor and a ceiling beam connecting assembly are processed and manufactured in a factory, wherein the ceiling beam connecting assembly comprises a short beam, a beam connecting plate, a horizontal connecting cover plate and a high-strength bolt, corresponding bolt holes are reserved in the beam connecting plate and the horizontal connecting cover plate, nuts are connected through welding at the bolt holes reserved in the inner side of the beam connecting plate, the short beam is welded on a secondary ceiling beam in advance, and the beam connecting plate is welded at a corresponding position on a horizontally butted ceiling beam in advance;
step 2: installing a ceiling beam connecting assembly, connecting horizontal connecting cover plates between adjacent horizontally butted module ceiling beams, reserving corresponding bolt holes on a beam connecting plate and the horizontal connecting cover plates, welding and fixing nuts at the reserved bolt holes on the inner sides of the beam connecting plates, penetrating high-strength bolts through bolt holes of plates to be connected of the beam connecting plate and the horizontal connecting cover plates during assembly, finely adjusting positions to enable the nuts and the screw rods to be aligned to initially screw, and finally performing unilateral screwing on the bolt heads by using a torque wrench;
and step 3: after the modular units are stacked, the beam ends and the midspan are respectively provided with a ceiling beam connecting component, so that unrelated modular unit floors can be conveniently combined.
Further, when the components need to be replaced during the service period of the structure or the disassembly is needed after the service period expires, the bolt rod is unscrewed, and the structure is disassembled by loosening the bolt.
Further, step 1 of the manufacturing method further includes manufacturing the beam connecting plate and the horizontal connecting cover plate, including: after the design of regular section size, a rectangular plate is formed by cutting a rectangular steel plate, and a beam connecting plate and a horizontal connecting cover plate are respectively prepared; corresponding bolt holes are formed in the horizontal connecting cover plate and the corresponding module ceiling beam, the nuts are fixed at the reserved bolt holes on the inner side of the beam connecting plate through fixing devices in a spot welding mode, and the beam connecting plate and the horizontal connecting cover plate are connected together through large-hexagon high-strength bolts.
The beneficial effects of the invention include:
1. the detachable floor connecting structure is arranged at the joint between the adjacent module ceiling beams, so that the horizontal connection between the module units is enhanced, the problems that the module steel structure deforms too much in a plane and the rigidity in the plane of the floor is insufficient due to the discontinuity of the floor when the module units on the same layer are spliced are solved, and the integral robustness of the structure is enhanced;
2. all structural components are prefabricated parts, welding parts of the connection structure are finished in a factory in advance, high-strength bolts are adopted for field assembly after the structural components are transported to the field, the structural components are connected by the full bolts on the field, the field welding-free operation is realized, and the construction speed and the construction quality are greatly improved;
3. the connecting structure is convenient to disassemble, adjacent module units can be separated by unscrewing the high-strength bolt, so that the damaged component can be repaired and replaced after an earthquake, the disassembling work after the service period of the structure is expired is facilitated, and the design concept of sustainable development of green buildings is met;
4. the connection mode of utilizing the full bolt assembly connection of high strength bolt has been realized, the bearing capacity of connection had both been guaranteed, performance and economic nature have also been improved, can improve the whole atress performance of modularization steel construction under the prerequisite of performance module building assembly ization advantage, guarantee the wholeness of modularization steel construction, the convenience and the detachability of construction.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional spatial decomposition of a structure according to an embodiment of the present invention;
FIG. 2 is a schematic three-dimensional structure of a ceiling according to one embodiment of the present invention;
FIG. 3 is a schematic structural view of a ceiling beam connection assembly according to one embodiment of the present invention;
FIG. 4 is an exploded view of a ceiling beam connection assembly according to one embodiment of the present invention;
FIG. 5 is a schematic view of a beam web construction according to one embodiment of the present invention;
fig. 6 is a schematic view of a structure of a horizontally connected cover plate according to an embodiment of the present invention.
The attached drawings are marked as follows: 1. the ceiling beam connecting assembly comprises a ceiling beam connecting assembly, 11 short beams, 12 beam connecting plates, 13 horizontal connecting cover plates, 14 high-strength bolts, 15 horizontal butt joint ceiling beams, 16 ceiling secondary beams, 17 nuts and 18 bolt holes.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
in one embodiment of the present invention, as shown in fig. 1 to 6, a detachable floor connection node for a modular steel structure includes a modular ceiling 100, a modular floor 200, and a ceiling beam connection assembly 110; wherein:
the ceiling beam connecting assembly 110 comprises short beams 11, beam connecting plates 12, horizontal connecting cover plates 13 and high-strength bolts 14, wherein the short beams 11 are welded on ceiling secondary beams 16 in advance, the beam connecting plates 12 are welded between horizontally butted ceiling beams 15 and the short beams 11 in advance, bolt holes 18 are reserved on the beam connecting plates 12, nuts 17 are fixed by fixing devices at the positions of the bolt holes 18 reserved on the inner sides of the beam connecting plates 12, the horizontal connecting cover plates 13 are connected between the horizontally butted adjacent module ceiling beams 15, corresponding bolt holes 18 are reserved at corresponding positions on the horizontal connecting cover plates 13 and the beam connecting plates 12, and the horizontal connecting cover plates 13 and the beam connecting plates 12 are connected together through the high-strength bolts 14;
the high-strength bolt 14 is a large hexagonal high-strength bolt, and a nut on the inner side of the beam connecting plate 12 is fixed at a reserved bolt hole 18 on the inner side in a spot welding mode, so that the free rotation of the nut is limited, and an installation counter force is provided;
the beam connecting plate 12 and the horizontal connecting cover plate 13 are formed by cutting rectangular steel plates after being designed with regular cross-sectional dimensions to form a rectangular cover plate, corresponding bolt holes 18 are reserved in the beam connecting plate, and the beam connecting plate 12 is connected with a horizontally butted ceiling beam 15 in a welding mode in a factory in advance.
The manufacturing method of the detachable floor connecting node for the modular steel structure comprises the following steps:
(1) the modular ceiling 100, the modular floor 200 and the ceiling beam connecting assembly 110 are manufactured in a factory according to design requirements, wherein the ceiling beam connecting assembly 110 comprises short beams 11, beam connecting plates 12, horizontal connecting cover plates 13 and high-strength bolts 14, corresponding bolt holes 18 are reserved in the beam connecting plates 12 and the horizontal connecting cover plates 13, nuts 17 are connected through welding at the positions, reserved in the bolt holes 18, of the inner sides of the beam connecting plates 12, the short beams 11 are welded on the ceiling secondary beams 16 in advance, and the beam connecting plates 12 are welded at corresponding positions on the horizontally butted ceiling beams 15 in advance;
(2) installing a ceiling beam connecting assembly 110, connecting horizontal connecting cover plates 13 between horizontally butted adjacent module ceiling beams 15, reserving corresponding bolt holes 18 on a beam connecting plate 12 and the horizontal connecting cover plates 13, welding and fixing nuts 17 at the positions of the reserved bolt holes 18 on the inner sides of the beam connecting plates, connecting high-strength bolts 14 with the horizontal connecting cover plates 13 through the beam connecting plate 12 during assembly, finely adjusting the positions to enable the nuts and the screws to be aligned to be preliminarily screwed, and finally performing single-side screwing on the bolt heads by using a torque wrench;
(3) structural disassembly is accomplished by loosening bolts 14 when replacement of components is required during service of the structure or disassembly is required at the end of service.
The step (1) further includes the manufacturing of the beam connecting plate 12 and the horizontal connecting cover plate 13, including:
after the design of regular section size, a rectangular plate is formed by cutting a steel plate, and a beam connecting plate 12 and a horizontal connecting cover plate 13 are respectively prepared; corresponding bolt holes 18 are formed in the beam connecting plate 12 and the horizontal connecting cover plate 13, nuts 17 are fixed at the reserved bolt holes in the inner side of the beam connecting plate 12 through fixing devices in a spot welding mode, and the beam connecting plate 12 and the horizontal connecting cover plate 13 are connected together through large-hexagonal high-strength bolts 14.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive. Those skilled in the art, having the benefit of this disclosure, may effect numerous modifications thereto without departing from the scope and spirit of the invention as set forth in the claims that follow.
Claims (6)
1. A removable floor connection node for modular steel structures, comprising a modular ceiling (100), modular floor (200) and ceiling beam connection assemblies, wherein: the ceiling beam connecting assembly (110) comprises a short beam (11), a beam connecting plate (12), a horizontal connecting cover plate (13) and a high-strength bolt (14), the short beam (11) is welded on the secondary ceiling beam (16) in advance, the beam connecting plate (12) is welded between the horizontally butted ceiling beam (15) and the short beam (11) in advance, the beam connecting plate (12) is reserved with a bolt hole (18), and the nuts (18) are fixed by a fixing device at the positions of the reserved bolt holes (18) on the inner side of the beam connecting plate (12), the horizontal connecting cover plate (13) is connected and formed between the adjacent module ceiling beams (15) which are horizontally butted, corresponding bolt holes (18) are reserved at corresponding positions on the horizontal connecting cover plate (13) and the beam connecting plate (12), and the horizontal connecting cover plate (13) and the beam connecting plate (12) are connected together through a high-strength bolt (14).
2. The connection node according to claim 1, wherein the high-strength bolt (14) is a large hexagonal high-strength bolt, and the nut on the inner side of the beam connection plate (12) is fixed at the reserved bolt hole (18) on the inner side by a fixing device in a spot welding manner, so that the free rotation of the nut is limited, and an installation counter force is provided.
3. The connection node according to claim 1, wherein the beam connection plates (12) and the horizontal connection caps (13) are factory prefabricated from steel plate after being designed with regular cross-sectional dimensions.
4. The connecting node according to claim 1, wherein the high-strength bolt (14) is fittable and detachable using an electric torque wrench, and when detachment is required, structural detachment is achieved by loosening the high-strength bolt.
5. The method for manufacturing and installing the detachable floor connecting node for the modular steel structure as claimed in any one of the claims 1 to 4, wherein the method comprises the following steps:
step 1, processing and manufacturing a module ceiling (100), a module floor (200) and a ceiling beam connecting assembly (110) in a factory, wherein the ceiling beam connecting assembly (110) comprises a short beam (11), a beam connecting plate (12), a horizontal connecting cover plate (13) and a high-strength bolt (14), corresponding bolt holes (18) are reserved in the beam connecting plate (12) and the horizontal connecting cover plate (13), nuts (17) are connected through welding at the positions where the bolt holes (18) are reserved in the inner side of the beam connecting plate (12), the short beam (11) is welded on a ceiling secondary beam (16) in advance, and the beam connecting plate (12) is welded at corresponding positions on a horizontally butted ceiling beam (15) in advance;
step 2, mounting a ceiling beam connecting assembly (110), connecting a horizontal connecting cover plate (13) between horizontally butted adjacent module ceiling beams (15), reserving corresponding bolt holes (18) on a beam connecting plate (12) and the horizontal connecting cover plate (13), welding and fixing nuts (17) together at the positions of the reserved bolt holes (18) on the inner side of the beam connecting plate, connecting high-strength bolts (14) through the beam connecting plate (12) and the bolt holes of the horizontal connecting cover plate (13) during assembly, finely adjusting positions to enable the nuts and screws to be aligned to and initially screwed, and finally performing unilateral screwing on bolt heads by using a torque wrench;
and 3, when the components need to be replaced during the service period of the structure or the disassembly is needed after the service period expires, the bolt rod is unscrewed, and the structure is disassembled by loosening the bolt (14).
6. The method of claim 5, wherein step 1 further comprises the fabrication of said beam web (12), horizontal connecting caps (13), comprising:
after the design of regular section size, a rectangular plate is formed by cutting a rectangular steel plate, and a beam connecting plate (12) and a horizontal connecting cover plate (13) are respectively prepared; corresponding bolt holes (18) are formed in the horizontal connecting cover plate (13) and the corresponding module ceiling beam, nuts (17) are fixed at the inner sides of the beam connecting plates (12) in a spot welding mode through fixing devices, the bolt holes are reserved in the inner sides, and the beam connecting plates (12) are connected with the horizontal connecting cover plate (13) through large-hexagonal high-strength bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110163508.3A CN112854575A (en) | 2021-02-05 | 2021-02-05 | Detachable floor connecting node for modular steel structure and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110163508.3A CN112854575A (en) | 2021-02-05 | 2021-02-05 | Detachable floor connecting node for modular steel structure and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112854575A true CN112854575A (en) | 2021-05-28 |
Family
ID=75988608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110163508.3A Pending CN112854575A (en) | 2021-02-05 | 2021-02-05 | Detachable floor connecting node for modular steel structure and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112854575A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908881A (en) * | 2022-05-18 | 2022-08-16 | 东南大学 | Modular steel structure edge part bolt connection node and construction method |
-
2021
- 2021-02-05 CN CN202110163508.3A patent/CN112854575A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114908881A (en) * | 2022-05-18 | 2022-08-16 | 东南大学 | Modular steel structure edge part bolt connection node and construction method |
| CN114908881B (en) * | 2022-05-18 | 2023-12-19 | 东南大学 | Modularized steel structure side bolt connection node and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110593419B (en) | Node structure of assembled type through bolt unequal-altitude beam-square steel tube concrete column and manufacturing method | |
| CN211873350U (en) | Assembled type through bolt unequal-height beam-square steel tube concrete column joint structure | |
| CN112854575A (en) | Detachable floor connecting node for modular steel structure and manufacturing method thereof | |
| CN210086489U (en) | Dry-type connected low-rise assembly type building structure system | |
| CN215630957U (en) | A can dismantle superstructure connected node for modularization steel construction | |
| CN108301546B (en) | Assembled large-module superposed beam plate structure with plane truss temporary support | |
| CN1632252B (en) | Light steel sealed column framework construction system | |
| CN103290922B (en) | A kind of industrialization assembling post through beam steel flanged beam steel structure frame system | |
| CN209779860U (en) | assembled steel frame structure node | |
| CN115233834B (en) | High-rise modularized box structure connecting node | |
| CN111119342A (en) | Joint modularized assembling type steel structure house | |
| CN112854451A (en) | Horizontal self-locking connecting joint for modular steel structure and construction method thereof | |
| CN212153708U (en) | Steel structure | |
| CN113802741A (en) | Pin shear connection assembly type beam-slab combination system based on orthogonal corrugated steel plate bending-resistant tie-bar composite floor slab | |
| CN216948711U (en) | Make things convenient for electromechanical pipeline and decorate building structure of installation | |
| CN114016769A (en) | Unit structure of prefabricated building, production method and assembly method | |
| CN215630631U (en) | Horizontal self-locking connecting node for modular steel structure | |
| CN219671645U (en) | Easy-to-disassemble and assemble all-steel pipe assembly structure | |
| CN111980225A (en) | Connecting structure of prefabricated wall panel and steel frame column and construction method thereof | |
| CN104775549A (en) | Steel-frame wood-filled shear wall structure connected by using embedded steel bars | |
| CN111535447A (en) | Prefabricated concrete prefabricated house and corner connecting technology | |
| CN117344900B (en) | Novel fully-assembled floor system and construction method | |
| CN219100305U (en) | Split bolt connecting device between assembled modularized steel frame modules | |
| CN109944361B (en) | T-shaped node of steel concrete combined pipe with high shear strength | |
| CN220504146U (en) | Steel column and I-steel beam connecting node |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |