CN110952661B - Method for determining connection node of frame beam and integrated house frame beam - Google Patents
Method for determining connection node of frame beam and integrated house frame beam Download PDFInfo
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- CN110952661B CN110952661B CN201911199953.4A CN201911199953A CN110952661B CN 110952661 B CN110952661 B CN 110952661B CN 201911199953 A CN201911199953 A CN 201911199953A CN 110952661 B CN110952661 B CN 110952661B
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 97
- 239000010959 steel Substances 0.000 claims abstract description 97
- 238000010276 construction Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 claims 2
- 238000003466 welding Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- 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
-
- 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
- E04B2001/2415—Brackets, gussets, joining plates
-
- 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
-
- 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
- E04B2001/2421—Socket type connectors
-
- 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
- E04B2001/2448—Connections between open section profiles
-
- 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
- E04B2001/2457—Beam to beam connections
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- 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 belongs to the field of civil engineering, and relates to a connection mode of a frame beam and an integrated house frame beam and a determination method of a connection node. The connection mode comprises a frame beam, a framework beam, an inserting assembly and a matched bolt, wherein the inserting assembly comprises a U-shaped steel plate part and an L-shaped steel plate part which are arranged in a matched mode in pair, and the framework beam of the integrated house is connected with the frame beam by the high-strength bolt; and obtaining the bolt spacing through numerical analysis, and analyzing and determining the size of the plug-in component by using an ABAQUS finite element model. The connecting node has simple structure and uniform modulus; the integrated house and the frame beam can be accurately positioned through the splicing assembly; only bolt connection is needed during field assembly, and construction is easy; the integrated house and the steel frame are convenient to mount and dismount, the steel frame structure is not damaged, the frame is repeatedly utilized, the resource is saved, the house is moved, and a high-assembly type building mode is embodied; the application of the integrated house in multi-storey and even middle-high-rise residences is realized.
Description
Technical Field
The invention belongs to the field of civil engineering, and relates to a method for determining a connection node of a frame beam and a frame beam of an integrated house.
Background
The integrated house is a movable and reusable building product which is designed in an modularized mode and produced in a factory, and is mostly applied to temporary offices and dormitories of construction sites and houses for field exploration and field operation construction. The existing integrated house mostly adopts solid section steel as framework columns and framework beams for ensuring the safety of the structure, and has the advantages of great weight, high cost, inconvenient transportation and the like, so that the integrated house is mostly applied to low-rise buildings. The integrated house is reliably connected with the steel frame structure, so that the construction speed of the building can be greatly improved, the construction period is shortened, and the steel frame structure can reduce the steel consumption of the framework beam of the integrated house so as to reduce the dead weight of the integrated house, so that the integrated house is applied to a multi-layer building.
The integrated house needs to adopt solid shaped steel beam column for guaranteeing the bearing capacity of self, and the dead weight is big, and the cost is high, and the building height is limited, though steel frame construction bearing capacity is good, can't have direct service function concurrently. At present, the connected mode of integrated house and steel frame construction is mostly the welding, and current patent is less to steel frame roof beam and integrated house skeleton beam connected node's research, and most of patents are only directed at the connection of integrated house skeleton to and the research of integrated house own structural optimization and selection of material or the optimization and the research of full assembled steel frame system beam column connected node. Patent 201720022079.7 discloses a box fusion frame, which only describes that adjacent integrated houses are connected by auxiliary support steel beams, but not the connection form of the integrated houses and the frame beams; patent 201820379360.0 discloses a roof frame beam of an integrated house, which only describes the connection form of the roof frame beam, and introduces a beam body suitable for the integrated house; patent 201711390228.6 discloses a fully assembled steel frame structure system with restoration function, which proposes to realize a replaceable steel frame system after an earthquake.
Disclosure of Invention
An object of the utility model is to prior art not enough, provide simple structure, connect reliably, the level of assemblability is high, the frame roof beam of easy construction and the connected mode of integrated house skeleton roof beam to the definite method of frame roof beam and skeleton roof beam connected node has been given.
The technical scheme of the invention is as follows: the connecting node comprises a frame beam, a framework beam, an inserting assembly and a matched bolt, wherein the inserting assembly comprises a U-shaped steel plate part and an L-shaped steel plate part which are arranged in a matched mode in pair, the two steel plate parts are connected in a clamping mode, the U-shaped steel plate part is welded to the outer side of the framework beam at the upper part of the integrated house, the L-shaped steel plate part is welded to the lower flange of the frame beam connected with the framework beam at the upper part of the integrated house, and a bolt hole is formed in the lower flange of the framework beam at the lower part of the integrated house and the upper flange of the connected frame beam in advance and is connected through a high-strength bolt; a method for determining a connection node of a frame beam and an integrated house frame beam comprises the following steps:
the method comprises the following steps: and (3) calculating the bolt distance according to the formulas (1) to (4) to ensure that the structure has good integrity under the action of horizontal seismic load:
G＝[H+1.2(L+Q)]lh (1)
FEk＝αmaxG (2)
in the formula: g-gravity load representative value; h-constant load; l-live load, Q-dynamic load; l-length of frame beam; h-frame beam width; fEk-structural level seismic action normalized values; alpha is alphamax-horizontal seismic influence coefficient maximum; d-bolt shank diameter; n is the number of bolts;
-bolt shear strength; db-bolt spacing; t is the thickness of the beam flange;
according to the construction requirement, when the formulas (1) to (4) calculate the obtained bolt spacing dbGreater than 15d0In the meantime, the bolt spacing is 15d0Wherein d is0The diameter of the bolt hole;
step two: designing plug-in component models with different parameters, wherein the parameter variables comprise the thickness of the steel plate, the length of two spliced steel plates of the L-shaped steel plate part, the length of two vertically arranged steel plates of the U-shaped steel plate part and the length of a horizontally arranged steel plate of the U-shaped steel plate part;
step three: establishing an ABAQUS finite element model; the unit types of the steel plates are all C3D8R, a coulomb model is adopted as a tangential force model, the interface friction coefficient mu is 0.25, and the normal contact is hard contact; tie constraint connection is adopted between the steel materials;
step four: carrying out stress analysis on the model through finite element software ABAQUS to obtain a stress cloud picture and a load-displacement curve of the plug-in component under different parameters;
step five: determining the size requirement of the plugging component according to data statistics of finite element software ABAQUS;
the dimensional requirements of the plug assembly are as follows:
the value range of the thickness t of the steel plate of the splicing assembly is 5 mm-12 mm;
length L of two spliced steel plates of L-shaped steel plate1＝0.5(h-4t1)；
Two vertically arranged steel plate lengths l of U-shaped steel plate2＝l1-t；
Steel plate length l of U-shaped steel plate horizontal arrangement3＝4t；
In the formula: h-frame beam width; t is t1-frame beam web thickness; in practical engineering, for convenience of construction, the pair l1，l2，l3And (6) rounding the length.
The invention has the beneficial effects that: a method for determining the connection mode and connection node of a frame beam and an integrated house frame beam is characterized in that a U-shaped steel plate is welded on the upper frame beam of the integrated house, an L-shaped steel plate is welded on the lower flange of the frame beam connected with the integrated house frame beam, the integrated house and the frame beam can be accurately positioned through a plug-in assembly formed by a U-shaped groove and L-shaped steel during hoisting, and the frame beam and the lower frame beam are connected through bolts after the frame beam and the lower frame beam are in place. The connecting node has simple structure and uniform modulus; the integrated house and the frame beam can be accurately positioned through the splicing assembly; only bolt connection is needed during field assembly, and construction is easy; the integrated house and the steel frame are convenient to mount and dismount, the steel frame structure is not damaged, the frame is repeatedly utilized, the resource is saved, the house is moved, and a high-assembly type building mode is embodied; the problem of the overall stability of the integrated house in multiple floors or even middle and high-rise houses is solved.
Drawings
FIG. 1 is a schematic plan view of an embodiment of the present invention;
FIG. 2 is a schematic plane view of the connection between the frame beam and the U-shaped steel plate member according to the embodiment of the present invention;
FIG. 3 is a schematic plane view of a connection between a frame beam and an L-shaped steel plate member according to an embodiment of the present invention;
FIG. 4 is a schematic plane view of a connection between a frame beam and a frame beam according to an embodiment of the present invention;
FIG. 5 is a schematic plan view of an L-shaped steel plate member according to an embodiment of the present invention;
fig. 6 is a schematic plan view of a U-shaped steel plate member according to an embodiment of the present invention.
Detailed Description
The invention is further illustrated by the following examples in conjunction with the accompanying drawings.
Example 1
A method for determining a connection node of a frame beam and an integrated house frame beam comprises the frame beam 1, the frame beam 2, a plug-in assembly 3 and a matched bolt 4; the plug-in assembly 3 comprises a U-shaped steel plate part 5 and an L-shaped steel plate part 6 which are arranged in a matched mode in pairs; the L-shaped steel plate part 5 consists of a horizontal steel plate 5.1 and a vertical steel plate 5.2 vertically arranged at one end of the horizontal steel plate 5.1; the U-shaped steel plate part 6 is composed of a horizontal steel plate 6.1 and two vertical steel plates 6.2 and 6.3 which are vertically arranged at two ends of the horizontal steel plate, the steel plates are connected through welding, and a welding seam is 7.
The invention is further explained by the embodiment of the determination method for the connection node of the integrated house skeleton beam and the integrated house skeleton beam by designing the length of the integrated house to be 12m, the width to be 8m and the height to be 3.3m, designing the steel frame structure to be 6m in the depth direction column distance, 8m in the inter-opening direction column distance, adopting the section specification of a steel beam to be HN 300 multiplied by 160 multiplied by 8 multiplied by 10, adopting the section specification of a column to be HW 300 multiplied by 10 multiplied by 15, adopting Q345B as steel and adopting a high-strength bolt to adopt a 10.9-grade frame beam.
Example 2
The method for determining the connection node of the frame beam and the integrated house framework beam comprises the following steps:
the method comprises the following steps: and (3) calculating the bolt distance according to the formulas (1) to (4) to ensure that the structure has good integrity under the action of horizontal seismic load:
G＝[H+1.2(L+Q)]lh (1)
FEk＝αmaxG (2)
in the formula: g-gravity load representative value; h-constant load; l-live load, Q-dynamic load; l-length of frame beam; h-frame beam width; fEk-structural level seismic action normalized values; alpha is alphamax-horizontal seismic influence coefficient maximum; d-bolt shank diameter; n is the number of bolts;
-bolt shear strength; db-bolt spacing; t is the thickness of the beam flange;
according to the construction requirement, when the formulas (1) to (4) calculate the obtained bolt spacing dbGreater than 15d0In the meantime, the bolt spacing is 15d0Wherein d is0The diameter of the bolt hole;
calculating that the distance between the bolts is 100 mm;
step two: designing a group of plug-in assembly models with different parameters, wherein the parameter variables comprise the thickness of the steel plates, the lengths of two spliced steel plates of the L-shaped steel plate part, the lengths of two vertically arranged steel plates of the U-shaped steel plate part and the lengths of horizontally arranged steel plates of the U-shaped steel plate part;
step three: establishing an ABAQUS finite element model; the unit types of the steel plates are all C3D8R, a coulomb model is adopted as a tangential force model, the interface friction coefficient mu is 0.25, and the normal contact is hard contact; tie constraint connection is adopted between the steel materials;
step four: carrying out stress analysis on the model through finite element software ABAQUS to obtain a stress cloud picture and a load-displacement curve of the plug-in component under different parameters;
step five: determining the size requirement of the plugging component according to data statistics of finite element software ABAQUS;
the value range of the thickness t of the steel plate of the splicing assembly is 8 mm;
length L of two spliced steel plates of L-shaped steel plate1＝0.5(h-4t1) 134 mm; take 130 mm.
Two vertically arranged steel plate lengths l of U-shaped steel plate2＝l1-t 126 mm; take 125 mm.
Steel plate length l of U-shaped steel plate horizontal arrangement34t 32 mm; take 35 mm.
Claims (1)
1. A method for determining a connection node of a frame beam and an integrated house frame beam comprises the frame beam, an insertion assembly and a matched bolt, wherein the insertion assembly comprises a U-shaped steel plate part and an L-shaped steel plate part which are arranged in a matched mode in pair, the two steel plate parts are connected in a clamping mode, the U-shaped steel plate part is welded to the outer side of the upper frame beam of the integrated house, the L-shaped steel plate part is welded to a lower flange of the frame beam connected with the upper frame beam of the integrated house, and a bolt hole is formed in the lower flange of the lower frame beam of the integrated house and an upper flange of the connected frame beam in advance and is connected through a high-strength bolt;
a method for determining a connection node of a frame beam and an integrated house frame beam comprises the following steps:
the method comprises the following steps: and (3) calculating the bolt distance according to the formulas (1) to (4) to ensure that the structure has good integrity under the action of horizontal seismic load:
G＝[H+1.2(L+Q)]lh (1)
FEk＝αmaxG (2)
in the formula: g-gravity load representative value; h-constant load; l-live load, Q-dynamic load; l-length of frame beam; h-frame beamA width; fEk-structural level seismic action normalized values; alpha is alphamax-horizontal seismic influence coefficient maximum; d-bolt shank diameter; n is the number of bolts;
-bolt shear strength; db-bolt spacing; t is the thickness of the beam flange;
according to the construction requirement, when the formulas (1) to (4) calculate the obtained bolt spacing dbGreater than 15d0In the meantime, the bolt spacing is 15d0Wherein d is0The diameter of the bolt hole;
step two: designing plug-in component models with different parameters, wherein the parameter variables comprise the thickness of the steel plate, the length of two spliced steel plates of the L-shaped steel plate part, the length of two vertically arranged steel plates of the U-shaped steel plate part and the length of a horizontally arranged steel plate of the U-shaped steel plate part;
step three: establishing an ABAQUS finite element model, wherein the unit types of the steel plates are all C3D8R, the tangential force model adopts a coulomb model, the interface friction coefficient mu is 0.25, the normal contact is hard contact, and the steel materials are connected by Tie constraint;
step four: carrying out stress analysis on the model through finite element software ABAQUS to obtain a stress cloud picture and a load-displacement curve of the plug-in component under different parameters;
step five: determining the size requirement of the plugging component according to data statistics of finite element software ABAQUS;
the dimensional requirements of the plug assembly are as follows:
the value range of the thickness t of the steel plate of the splicing assembly is 5 mm-12 mm;
length L of two spliced steel plates of L-shaped steel plate1＝0.5(h-4t1)；
Two vertically arranged steel plate lengths l of U-shaped steel plate2＝l1-t；
Steel plate length l of U-shaped steel plate horizontal arrangement3＝4t；
In the formula: h-frame beam width; t is t1-frame beam web thickness;
in actual engineering, areConvenient construction, to1，l2，l3And (6) rounding the length.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911199953.4A CN110952661B (en) | 2019-11-29 | 2019-11-29 | Method for determining connection node of frame beam and integrated house frame beam |
| PCT/CN2020/101794 WO2021103576A1 (en) | 2019-11-29 | 2020-07-14 | Method for determining connecting mode and connecting joint of frame beam and integrated house framework beam |
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| CN201911199953.4A CN110952661B (en) | 2019-11-29 | 2019-11-29 | Method for determining connection node of frame beam and integrated house frame beam |
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| CN110952661B (en) * | 2019-11-29 | 2021-12-24 | 青岛理工大学 | Method for determining connection node of frame beam and integrated house frame beam |
| CN113062467A (en) * | 2020-12-30 | 2021-07-02 | 中冶天工集团有限公司 | Horizontal connecting device and method for steel structure modular building and auxiliary elevator module |
| CN113255047B (en) * | 2021-06-23 | 2024-08-23 | 合肥量圳建筑科技有限公司 | Frame beam layout method, device, equipment and storage medium |
| CN113638502A (en) * | 2021-07-29 | 2021-11-12 | 同济大学建筑设计研究院(集团)有限公司 | Connecting structure of prefabricated floor slab and steel frame |
| CN113673058B (en) * | 2021-08-25 | 2023-08-15 | 中铁建工集团有限公司 | Bolt assembly structure node computing system and computing method |
| CN114032765A (en) * | 2021-11-30 | 2022-02-11 | 深圳大学 | Assembled prefabricated plate assembling joint connecting assembly and joint structure thereof |
| CN114215181B (en) * | 2021-12-16 | 2023-04-21 | 中建五局第三建设有限公司 | Middle column node dry construction method of steel beam floor slab system and steel frame wallboard system |
| CN114055677A (en) * | 2021-12-22 | 2022-02-18 | 哈尔滨新科锐工艺装备制造有限公司 | Large composite material template welding frame die and manufacturing method |
| CN114482365B (en) * | 2022-03-28 | 2023-06-23 | 杭州鑫墨装饰工程有限公司 | Building curtain wall installation structure and installation method |
| CN114753627A (en) * | 2022-05-20 | 2022-07-15 | 中国建筑第二工程局有限公司 | Novel construction method for reinforcing steel backing ridges of formworks |
| CN116305413B (en) * | 2023-01-19 | 2024-05-31 | 安徽省交通控股集团有限公司 | Wedge-shaped section combined shear design method and device |
| CN116822032B (en) * | 2023-08-29 | 2023-10-27 | 北京城建集团有限责任公司 | Component processing method based on BIM |
| CN116861702B (en) * | 2023-09-01 | 2023-11-10 | 北京城建集团有限责任公司 | Horizontal force control analysis method for large-scale steel roof multi-support system |
| CN117107920B (en) * | 2023-09-26 | 2024-03-26 | 中国建筑科学研究院有限公司 | Connecting node of compartment type combined shear wall and floor slab and construction method thereof |
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| US7665251B1 (en) * | 2004-06-09 | 2010-02-23 | Steven Lang | Structural steel framed houses with gable end frames, intermediate frames, and wall and roof panels having perimeters of C-shaped steel channels |
| JP2009030345A (en) * | 2007-07-27 | 2009-02-12 | Nippon Rittai Chushajo Kaihatsu Kk | Assembly type three-dimensional structure |
| CN103046755B (en) * | 2012-12-24 | 2015-11-25 | 西南科技大学 | The construction method of the light steel integrated house of pastoral area assembling |
| CN206477496U (en) * | 2016-09-07 | 2017-09-08 | 昆明理工大学 | A kind of light gauge cold-formed steel shape house Wo Liang and steel-frame beam connecting node |
| CN106522372B (en) * | 2016-09-20 | 2019-01-15 | 上海迅铸建筑科技有限公司 | A kind of hybrid integrated house and construction method |
| CN206538871U (en) * | 2017-01-09 | 2017-10-03 | 惠州市普源宏业科技有限公司 | A kind of casing fusion type framework integrated house |
| CN107291979B (en) * | 2017-05-09 | 2020-06-23 | 浙江大学 | Accounting method for bearing capacity under action of bending moment axial force of steel cover plate joint |
| CN208578161U (en) * | 2018-06-13 | 2019-03-05 | 天津住宅集团建设工程总承包有限公司钢结构分公司 | Assembling type steel structure integrated work room node connecting structure |
| CN109680993A (en) * | 2019-01-30 | 2019-04-26 | 北京浩石集成房屋有限公司 | A kind of removable box-type room |
| CN110952661B (en) * | 2019-11-29 | 2021-12-24 | 青岛理工大学 | Method for determining connection node of frame beam and integrated house frame beam |
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| WO2021103576A1 (en) | 2021-06-03 |
| CN110952661A (en) | 2020-04-03 |
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