CN115217218A - Multi-hinge energy-consumption assembled type detachable space steel structure node and assembling method thereof - Google Patents
Multi-hinge energy-consumption assembled type detachable space steel structure node and assembling method thereof Download PDFInfo
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- CN115217218A CN115217218A CN202110412022.9A CN202110412022A CN115217218A CN 115217218 A CN115217218 A CN 115217218A CN 202110412022 A CN202110412022 A CN 202110412022A CN 115217218 A CN115217218 A CN 115217218A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 159
- 239000010959 steel Substances 0.000 title claims abstract description 159
- 238000005265 energy consumption Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000003466 welding Methods 0.000 claims abstract description 12
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000009417 prefabrication Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000012360 testing method Methods 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
- 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
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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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
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
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- Business, Economics & Management (AREA)
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- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to a multi-hinge energy-consumption assembled detachable space steel structure node and an assembling method thereof. Compared with the prior art, the invention has the advantages of good reliability, convenient installation and operation and maintenance, less welding workload and the like.
Description
Technical Field
The invention relates to the technical field of beam-column joint seismic-resistant energy-dissipation design of prefabricated assembly type building space steel structures, in particular to a multi-hinge energy-dissipation assembly type detachable space steel structure joint and an assembly method thereof.
Background
In recent years, various types of large-span space steel structures are rapidly developed in developed countries and regions such as the united states, japan, europe, australia and the like, the span and the scale of the large-span space steel structures are increased, new materials and new technologies are applied more and more widely, and the structural forms are enriched more and more. With the rapid development of economic construction in China and the demand of people on building space, the development of large-span spatial steel structures increasingly presents diversification, and the large-scale public buildings such as cultural gymnasiums, conference exhibition centers, airport lounges, operas and the like and heavy industrial buildings of different types are more and more widely applied. But the connection of the steel column and the large-span space structure is difficult to form rigid connection, the steel column has a larger section due to the requirement of stability, and the material consumption is increased along with the steel column.
In the space steel structure, the steel column and the connecting joint at the upper part of the steel column play a vital role in the whole structure, and a plurality of accidents of the space steel structure often occur due to the manufacturing quality of the joint. Generally, large space steel structure engineering is composed of many members, even tens of thousands of members, and the members have various sectional forms, sizes and lengths. These factors bring great difficulty to the lofting of construction units, and for some bending members, special tests and researches are needed to complete the lofting; for some important types or projects with special requirements, the quality requirement is strict, the requirements on the processing and mounting precision of components are high, and the welding needs to reach a first-level welding line, so that great difficulty is brought to construction; in order to ensure the construction precision, the engineering of the type often needs to be pre-assembled, and the field welding workload is particularly large.
The above structure has the following drawbacks: the field welding workload is large, the difficulty is high, and the steel consumption is large; the safety and reliability of the connection node are poor; the prefabrication and assembly degree of the nodes is low; the node seismic resistance and energy consumption are poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the multi-hinge energy-consumption assembled detachable space steel structure node which is good in reliability, convenient to install, operate and maintain and low in welding workload and the assembling method thereof.
The purpose of the invention can be realized by the following technical scheme:
a multi-hinge energy-consumption assembled detachable space steel structure node comprises a steel column, a space steel truss and energy-consumption elements; the steel column is hinged with the space steel truss; two ends of the energy dissipation element are respectively hinged with the steel column and the space steel truss; the steel column, the space steel truss and the energy dissipation element are all prefabricated parts.
Preferably, the space steel truss comprises an upper chord member, a lower chord member, a supporting web member and a plurality of straight web members; the supporting web members and the plurality of straight web members are arranged between the upper chord member and the lower chord member at equal intervals; the plurality of straight web members are uniformly arranged along the upper chord member and the lower chord member by taking the supporting web members as centers; two ends of the supporting web member are respectively connected with the upper chord member and the lower chord member; and two ends of the straight web member are respectively connected with the upper chord member and the lower chord member.
More preferably, the space steel structure node is provided with a universal support; the universal support is arranged at the joint of the steel column and the space steel truss; the steel column is hinged with the space steel truss through a universal support.
More preferably, the energy dissipation element is hinged to the lower chord at a position corresponding to the position of the straight web member on the space steel truss, which is closest to the support web member.
More preferably, the included angle between the energy dissipation element and the lower chord is [30 degrees, 60 degrees ].
More preferably, the included angle between the energy dissipation element and the steel column is [30 degrees, 60 degrees ].
Preferably, the steel column and the space steel truss are provided with connecting plates at the connecting parts with the energy dissipation elements; and two ends of the energy dissipation element are respectively connected with the connecting plate through high-strength bolts.
Preferably, the integral structure of the steel column and the space steel truss meets the following constraint:
under the control working condition of being participated in earthquake action, the ratio of the maximum stress of the steel column to the yield strength of the steel material thereof is less than 0.85, and the ratio of the maximum stress of the end part of the space steel truss to the yield strength of the steel material thereof is in the range of [0.85,0.95].
More preferably, the integral structure of the steel column, the space steel truss and the energy dissipation element meets the constraint:
under the control working condition of being participated in the action of multiple earthquakes, the ratio range of the yield strength of the energy consumption element and the steel thereof is [0.9,0.95].
An assembling method for the multi-hinge energy-dissipation assembled detachable space steel structure node comprises the following steps:
step 1: the steel column, the space steel truss and the energy dissipation element are lofted according to design requirements, and prefabrication processing and manufacturing are completed;
step 2: transporting the preform to the site;
and 3, step 3: hoisting the steel column, positioning according to the site space position, and arranging a temporary support for fixation;
and 4, step 4: welding the space steel truss on the universal support;
and 5: respectively connecting the energy dissipation elements with the steel column and the space steel truss through high-strength bolts;
step 6: and finishing the assembly of the space steel structure node.
Compared with the prior art, the invention has the following beneficial effects:
1. the node reliability is good: the energy consumption mode of the energy consumption part of the space steel structure node is excellent, main components of the space steel structure and the steel column are not buckled or damaged, the connecting node of the steel column and the space steel truss is equal to or close to a rigid node under a certain condition, the shock resistance and the energy consumption of the node are good, and the reliability is high.
2. The installation and operation and maintenance are convenient: on the premise of ensuring reliability, the space steel structure node adopts a detachable connection mode, has high construction speed of repairing after construction and damage, is low in maintenance cost and can be recycled.
3. The welding workload is less: the space steel structure nodes in the invention adopt a detachable connection mode, thus greatly reducing the workload of high-altitude welding, saving the labor cost and being beneficial to environmental protection.
Drawings
FIG. 1 is a schematic structural diagram of a spatial steel structure node in an embodiment of the invention;
FIG. 2 is another schematic structural diagram of a space steel structure node in the embodiment of the invention;
FIG. 3 is a schematic structural diagram of a joint between a steel column and a space steel truss according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a connection between an energy dissipation element and a steel column according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a connection part of the energy dissipation element and the space steel truss in the embodiment of the invention.
The reference numbers in the figures indicate:
1. steel column, 2, space steel truss, 3, energy dissipation element, 4, universal support, 5, connecting plate, 201, upper chord, 202, lower chord, 203, support web member, 204 and straight web member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
The utility model provides a space steel construction node can be dismantled to multi-hinged power consumption assembled, includes steel column 1, space steel truss 2 and energy consumption component 3, and steel column 1 is articulated with space steel truss 2 through universal support 4, and energy consumption component 3's both ends are articulated with steel column 1 and space steel truss 2 respectively, and steel column 1, space steel truss 2 and energy consumption component 3 are the prefab.
As shown in fig. 2, the space steel truss 2 includes an upper chord 201, a lower chord 202, a supporting web member 203 and a plurality of straight web members 204, the supporting web member 203 and the plurality of straight web members 204 are arranged between the upper chord 201 and the lower chord 202 at equal intervals, the plurality of straight web members 204 use the supporting web member 203 as a center, the supporting web member is evenly arranged along the upper chord 201 and the lower chord 202, two ends of the supporting web member 203 are respectively connected with the upper chord 201 and the lower chord 202, and two ends of the straight web members 204 are respectively connected with the upper chord 201 and the lower chord 202. The space steel truss 2 in this embodiment is further provided with oblique web members, which are arranged in a wave shape, and the straight web members 204 are arranged between two adjacent oblique web members, and at the middle positions, the oblique web members are arranged on two sides of the supporting web members 203.
The space steel truss 2 in this embodiment is of a cross-shaped steel truss structure, as shown in fig. 1, but the shape of the space steel truss 2 is not limited in the present invention.
As shown in fig. 3 to 5, the dissipative element 3 is hinged to the lower chord 202 at a position corresponding to the position of the space steel truss 2 at which the straight web 204 of the space steel truss 2 is closest to the support web 203.
The included angle between the energy dissipation element 3 and the lower chord 202 is [30 degrees and 60 degrees ], and the included angle between the energy dissipation element 3 and the steel column 1 is [30 degrees and 60 degrees ].
The length of the dissipative element 3 in this embodiment can be defined according to the above-mentioned angle.
The steel column 1 and the space steel truss 2 are provided with connecting plates 5 at the joints with the energy dissipation elements 3, and the two ends of the energy dissipation elements 3 are connected with the connecting plates 5 through high-strength bolts respectively.
In this embodiment, a plurality of stiffening plates and stiffening ribs are provided at the joint between the gimbal 4 and the space steel truss 2, so as to ensure the stability of connection.
When not setting up power consumption component 3, the overall structure of steel column 1 and space steel truss 2 satisfies the restraint:
under the control working condition of being involved in earthquake action, the overall structural strength, rigidity and stability of the steel column 1 and the space steel truss 2 meet the design requirements, the ratio of the maximum stress of the steel column 1 to the yield strength of steel thereof is less than 0.85, and the ratio of the maximum stress of the end part of the space steel truss 2 to the yield strength of steel thereof is within the range of [0.85,0.95].
The integral structure of the steel column 1, the space steel truss 2 and the energy dissipation element 3 meets the constraint:
under the control working condition that the earthquake action is involved, the overall structural strength, rigidity and stability of the steel column 1, the space steel truss 2 and the energy dissipation element 3 meet the design requirements, and the yield strength ratio range of the energy dissipation element 3 to steel materials thereof is [0.9,0.95].
The embodiment also relates to an assembling method for the above-mentioned device, which comprises the following steps:
step 1: lofting the steel column, the space steel truss and the energy dissipation element according to design requirements to complete prefabrication and manufacturing;
step 2: transporting the preform to the site;
and step 3: hoisting the steel column, positioning according to the site space position, and arranging a temporary support for fixation;
and 4, step 4: welding the space steel truss on the universal support;
and 5: respectively connecting the energy dissipation element with the steel column and the space steel truss through high-strength bolts;
step 6: and finishing the assembly of the space steel structure node.
In the embodiment, the space steel truss and the steel column, and the energy consumption parts and the space steel truss are connected by the high-strength bolts, the reinforcing plates are locally adopted for reinforcement, the full bolt connection mode is basically realized, the energy consumption elements are completely detachable, and the on-site welding connection mode is avoided; secondly, through the energy consumption mode that energy consumption components form plastic hinges, the mode that main components of the space steel truss and the steel column are not subjected to yielding and damage is realized, and the repairability and the feasibility of recycling of the structure after the earthquake are realized; and thirdly, the maximum utility controllability of the energy consumption element is realized by controlling the strength, the spatial position and other related parameters of the energy consumption components.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The multi-hinge energy-consumption assembled detachable space steel structure node is characterized by comprising a steel column (1), a space steel truss (2) and energy-consumption elements (3); the steel column (1) is hinged with the space steel truss (2); two ends of the energy dissipation element (3) are respectively hinged with the steel column (1) and the space steel truss (2); the steel column (1), the space steel truss (2) and the energy dissipation element (3) are all prefabricated parts.
2. The multi-hinge energy-consumption assembled detachable space steel structure joint as claimed in claim 1, wherein the space steel truss (2) comprises an upper chord member (201), a lower chord member (202), a supporting web member (203) and a plurality of straight web members (204); the supporting web members (203) and the plurality of straight web members (204) are arranged between the upper chord member (201) and the lower chord member (202) at equal intervals; the plurality of straight web members (204) are uniformly arranged along the upper chord (201) and the lower chord (202) by taking the supporting web member (203) as a center; the two ends of the supporting web member (203) are respectively connected with the upper chord member (201) and the lower chord member (202); two ends of the straight web rod (204) are respectively connected with the upper chord (201) and the lower chord (202).
3. The multi-hinge energy-consumption assembled detachable space steel structure joint as claimed in claim 2, wherein the space steel structure joint is provided with a universal support (4); the universal support (4) is arranged at the joint of the steel column (1) and the space steel truss (2); the steel column (1) is hinged with the space steel truss (2) through a universal support (4).
4. A multi-hinge energy-consuming assembled demountable space steel structural joint according to claim 2, wherein said energy-consuming members (3) are hinged to said lower chord (202) at a position corresponding to the position of the space steel truss (2) at the position of the straight web (204) of the space steel truss (2) closest to said supporting web (203).
5. The multi-hinge energy-consuming assembled demountable space steel structure node of claim 2, wherein an included angle between the energy-consuming element (3) and the lower chord (202) is [30 degrees, 60 degrees ].
6. The multi-hinge energy-consumption assembled demountable spatial steel structure node according to claim 2, wherein an included angle between the energy-consumption elements (3) and the steel columns (1) is [30 degrees, 60 degrees ].
7. The multi-hinge energy-consumption assembled type detachable space steel structure joint as claimed in claim 1, wherein the steel columns (1) and the space steel truss (2) are provided with connecting plates (5) at the joints with the energy-consumption elements (3); and two ends of the energy dissipation element (3) are respectively connected with the connecting plate (5) through high-strength bolts.
8. The multi-hinge energy-consumption assembled detachable space steel structure joint as claimed in claim 1, wherein the integral structure of the steel column (1) and the space steel truss (2) satisfies the constraint:
under the control working condition of being participated in by earthquake action, the ratio of the maximum stress of the steel column (1) to the yield strength of the steel material thereof is less than 0.85, and the ratio of the maximum stress of the end part of the space steel truss (2) to the yield strength of the steel material thereof is in the range of [0.85,0.95].
9. The multi-hinge energy-consumption assembled detachable space steel structure node as claimed in claim 1, wherein the integral structure of the steel column (1), the space steel truss (2) and the energy-consumption element (3) satisfies the constraint:
under the control working condition of the participation of the earthquake action, the ratio range of the yield strength of the energy consumption element (3) and the steel thereof is [0.9,0.95].
10. An assembling method for the multi-hinged energy dissipation assembled demountable space steel structure node according to any one of claims 1-9, wherein the assembling method comprises:
step 1: lofting the steel column, the space steel truss and the energy dissipation element according to design requirements to complete prefabrication and manufacturing;
and 2, step: transporting the preform to the site;
and step 3: hoisting the steel column, positioning according to the site space position, and arranging a temporary support for fixation;
and 4, step 4: welding the space steel truss on the universal support;
and 5: respectively connecting the energy dissipation elements with the steel column and the space steel truss through high-strength bolts;
and 6: and finishing the assembly of the space steel structure node.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110412022.9A CN115217218A (en) | 2021-04-16 | 2021-04-16 | Multi-hinge energy-consumption assembled type detachable space steel structure node and assembling method thereof |
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| CN202110412022.9A CN115217218A (en) | 2021-04-16 | 2021-04-16 | Multi-hinge energy-consumption assembled type detachable space steel structure node and assembling method thereof |
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Application publication date: 20221021 |