CN112962786A - Eccentric support-steel beam combined energy dissipation frame and assembling method thereof - Google Patents
Eccentric support-steel beam combined energy dissipation frame and assembling method thereof Download PDFInfo
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- CN112962786A CN112962786A CN202110168873.3A CN202110168873A CN112962786A CN 112962786 A CN112962786 A CN 112962786A CN 202110168873 A CN202110168873 A CN 202110168873A CN 112962786 A CN112962786 A CN 112962786A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 122
- 239000010959 steel Substances 0.000 title claims abstract description 122
- 230000021715 photosynthesis, light harvesting Effects 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims description 10
- 239000004567 concrete Substances 0.000 claims abstract description 42
- 239000002131 composite material Substances 0.000 claims 5
- 230000002427 irreversible effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
-
- 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
-
- 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
-
- 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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- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
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- Business, Economics & Management (AREA)
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- Joining Of Building Structures In Genera (AREA)
Abstract
本发明公开了一种偏心支撑‑钢梁组合耗能框架，包括两个钢管柱，每个钢管柱上连接有两个钢梁段，两个钢管柱上的钢梁段之间通过混凝土梁段连接，其中一个混凝土梁段上连接有两个支撑段，两个支撑段自由端分别与一个钢管柱连接。通过管体节点区域设置凸台，对其进行加强，能避免节点连接管体的破坏；钢梁段形成耗能梁段，通过弹塑变形及摩擦消耗地震能量；支撑段为可控变形式刚性支撑，能够让框架产生一定变形，同时又能限制框架变形过大，使结构安全可靠，能避免发生无法恢复的破坏；所有构件均为预制构件，装配操作简单，易于实现。
The invention discloses an eccentric support-steel beam combined energy dissipation frame, comprising two steel pipe columns, each steel pipe column is connected with two steel beam sections, and concrete beam sections pass between the steel beam sections on the two steel pipe columns One concrete beam segment is connected with two support segments, and the free ends of the two support segments are respectively connected with a steel pipe column. By setting up bosses in the joint area of the pipe body, it can be strengthened to avoid the damage of the joint connecting pipe body; the steel beam section forms an energy-consuming beam section, which consumes seismic energy through elastic-plastic deformation and friction; the support section is rigid in a controllable deformation form The support can make the frame deform to a certain extent, and at the same time limit the frame deformation too much, make the structure safe and reliable, and avoid irreversible damage; all components are prefabricated components, and the assembly operation is simple and easy to implement.
Description
Technical Field
The invention belongs to the technical field of building structures, and relates to an eccentric support-steel beam combined energy dissipation frame and an assembly method of the energy dissipation frame.
Background
The traditional reinforced concrete structure needs formwork support and a large amount of in-situ pouring operation, the in-situ construction is complicated, and the construction period is long; with the development of the technology, the assembled structure is developed rapidly in recent years, the components are prefabricated, the components are installed on site, the construction difficulty is greatly reduced, and the construction period is shortened.
In recent years, structural energy consumption becomes the key point of research, the eccentric support is widely applied to earthquake resistance, and particularly in a steel structure, the support is matched to fully utilize the elasto-plastic performance of steel and the friction of member connection to form an energy consumption beam section to absorb earthquake energy; in the concrete structure, the earthquake energy is absorbed mostly by means of the deformation of the structure, so that the energy dissipation structure is easy to damage without recovery.
Disclosure of Invention
The invention aims to provide an eccentric support-steel beam combined energy dissipation frame, which solves the problem that an energy dissipation structure in the prior art is easy to damage and cannot be recovered.
The technical scheme adopted by the invention is that the eccentric support-steel beam combined energy dissipation frame comprises two steel pipe columns, each steel pipe column is connected with two steel beam sections, the steel beam sections on the two steel pipe columns are connected through concrete beam sections, one of the concrete beam sections is connected with two support sections, and the free ends of the two support sections are respectively connected with one steel pipe column.
The invention is also characterized in that:
each steel pipe column comprises a pipe body, two bosses are arranged along the length direction of one side of the pipe body, the pipe body is communicated with the bosses, stiffening ribs are arranged in the pipe body, and the stiffening ribs extend into the bosses and are connected with the inner walls of the bosses; the free end of the supporting section is connected with the boss.
The steel beam section comprises I-shaped steel, cover plates are fixed on two sides of a web plate of the I-shaped steel, first end plates are arranged at two ends of the I-shaped steel, and through holes are formed in the first end plates.
The concrete beam section comprises U-shaped steel, the two ends of the U-shaped steel are respectively provided with a second end plate, a connecting rod is arranged in the U-shaped steel, and the two ends of the connecting rod penetrate through the second end plates.
The support section comprises two connecting pipes which are connected through a sleeve, the free end of one connecting pipe is connected with the concrete beam section through a connecting piece, and the free end of the other connecting pipe is connected with the steel pipe column through a connecting piece.
The connecting pipe includes first connecting pipe, second connecting pipe, and the internal diameter, the external diameter of first connecting pipe all are greater than the second connecting pipe, and second connecting pipe free end is connected with the end, and the sleeve includes the barrel, and the barrel inner wall is provided with two rings of ring ribs, and two ends are located between two rings of ring ribs, and ring rib internal diameter less than or equal to second connecting pipe external diameter.
A buffer cushion is arranged between the two ends, and buffer rings are arranged between the ends and the annular ribs.
The connecting piece includes the third end plate, and the third end plate is connected with the support base, and the third end plate is connected with the connecting pipe, supports the base and is connected with concrete beam section, steel-pipe column respectively.
Another object of the present invention is to provide an assembling method of an eccentric support-steel beam combined energy dissipation frame.
The invention adopts another technical scheme that the assembling method of the eccentric support-steel beam combined energy dissipation frame comprises the following steps:
and 4, hoisting the support section, fixing one end of the support section on the steel pipe column, and fixing the other end of the support section on the bottom surface of the concrete beam section to finish assembly.
The invention has the beneficial effects that:
according to the eccentric support-steel beam combined energy dissipation frame, the bosses are arranged in the node areas of the pipe body to reinforce the pipe body, so that the damage of the node connection pipe body can be avoided; the steel beam section forms an energy consumption beam section, and seismic energy is consumed through elastic-plastic deformation and friction; the supporting section is a controllable deformation type rigid support, so that the frame can deform to a certain extent, and the deformation of the frame can be limited to be overlarge, so that the structure is safe and reliable, and the irrecoverable damage can be avoided; the support section is used as a safety guarantee for the beam, and when the steel beam is damaged, the support can effectively prevent the structure from collapsing; the I-steel and the cover plate are used as end bending and shearing members, and energy is dissipated through friction and deformation between an I-steel web plate and the cover plate; the sleeve is used for restraining the support section to generate an axial deformation effect within a certain range; the girder steel section can be replaced, guarantees the original function of structure. According to the assembling method of the eccentric support-steel beam combined energy dissipation frame, all components are prefabricated components, the operation is simple, and the method is easy to realize.
Drawings
FIG. 1 is a schematic structural view of an energy dissipating frame with an eccentric brace and steel beams combination according to the present invention;
FIG. 2 is a front view of an eccentric brace and steel beam combined energy dissipation frame of the present invention;
FIG. 3 is a schematic structural diagram of a steel pipe column in an eccentric support-steel beam combined energy dissipation frame according to the present invention;
FIG. 4 is a schematic structural diagram of a steel beam section in an energy dissipation frame with an eccentric brace and a steel beam combination according to the present invention;
FIG. 5 is a schematic structural diagram of a concrete beam section in an eccentric bracing-steel beam combined energy dissipation frame according to the present invention;
FIG. 6 is a schematic structural diagram of a support section of an eccentric support-steel beam combined energy dissipation frame according to the present invention;
FIG. 7 is a schematic structural diagram of a connecting pipe in an eccentric bracing-steel beam combined energy dissipation frame according to the present invention;
FIG. 8 is a schematic structural diagram of a sleeve in an eccentric bracing-steel beam combined energy dissipation frame according to the present invention;
FIG. 9 is a cross-sectional view of a sleeve in an eccentric brace and steel beam combined energy dissipation frame according to the present invention;
fig. 10 is a schematic structural view of a support base in an eccentric support-steel beam combined energy dissipation frame according to the present invention.
In the figure: 1. the steel pipe column comprises a steel pipe column, 101, a pipe body, 102, a boss, 103, a stiffening rib, 2, a steel beam section, 201, I-shaped steel, 202, a cover plate, 203, a first end plate, 204, a through hole, 3, a concrete beam section, 301, U-shaped steel, 302, a second end plate, 303, a connecting rod, 4, a support section, 401, a connecting pipe, 4011, a first connecting pipe, 4012, a second connecting pipe, 4013, an end head, 4014, a cushion pad, 4015, a cushion ring, 402, a sleeve, 4021, a barrel, 4022, an annular rib, 403, a third end plate and 404, and a support base.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The utility model provides an eccentric brace-girder steel combination power consumption frame, as shown in fig. 1 and fig. 2, including two steel-pipe columns 1, the concrete has been filled in the steel-pipe column 1, be connected with two girder segments 2 on every steel-pipe column 1, two girder segments 2 are parallel from top to bottom, connect through concrete beam section 3 between the girder segment 2 on two steel-pipe columns 1, girder segment 2 constitutes the beam section with concrete beam section 3, be connected with two support sections 4 on one of them concrete beam section 3, the concrete has been filled in the support section 4, two support sections 4 free ends are connected with a steel-pipe column 1 respectively. The concrete in this embodiment is all recycled concrete, and may also be ordinary concrete.
As shown in fig. 3, each steel pipe column 1 includes a pipe body 101, and the pipe body 101 is a square steel pipe as an axial force-receiving portion, and is simultaneously wrapped with concrete to form circumferential restraint. Two bosses (brackets) 102 are arranged along the length direction of one side of the pipe body 101, the bosses 102 are positioned at the nodes of the beam column, the pipe body 101 is communicated with the bosses 102, stiffening ribs 103 are arranged in the pipe body 101, the stiffening ribs 103 extend into the bosses 102 and are connected with the inner walls of the bosses 102, the stiffening ribs 103 can strengthen the node areas, and the free ends of the support sections 4 are connected to the bosses 102; concrete is poured into the pipe body 101 and the boss 102, and a bolt sleeve is embedded in the concrete on one side of the boss 102.
As shown in fig. 4, the steel beam section 2 includes an i-beam 201, cover plates 202 are fixed on two sides of a web of the i-beam 201, the cover plates 202 are fixed on the web of the i-beam 201 through two rows of bolts, and first end plates 203 are arranged at two ends of the i-beam 201. The cover plate 202 is located at one end, close to the concrete beam section 3, of the web plate of the I-steel 201, and the first end plate 203 is provided with a through hole 204.
As shown in fig. 5, the concrete beam section 3 includes U-shaped steel 301, concrete is poured into the U-shaped steel 301, two ends of the U-shaped steel 301 are respectively provided with a second end plate 302, a connecting rod 303 is arranged in the U-shaped steel 301, two ends of the connecting rod 303 penetrate through the second end plates 302, and the position of the connecting rod 303 corresponds to the through hole 204; the connecting rod 303 is a steel bar, and two ends of the steel bar are provided with threads; and bolt sleeves are arranged on the bottom plates of the second end plates 302 and the U-shaped steel 301. The connecting rods 303 serve as the tension and compression portions in the beam segments and simultaneously connect the concrete beam segments 3 with the steel beam segments 2, so that the beam segments have better integrity.
As shown in fig. 6 to 7, the support section 4 includes two connecting pipes 401, the two connecting pipes 401 are connected by a sleeve 402, a free end of one connecting pipe 401 is connected to the concrete beam section 3 by a connecting member, a free end of the other connecting pipe 401 is connected to the boss 102 by a connecting member, and the boss 102 is used for bearing the axial force transmitted from the support. Connecting pipe 401 includes first connecting pipe 4011 and second connecting pipe 4012, inner diameter and outer diameter of first connecting pipe 4011 are greater than those of second connecting pipe 4012, and free end of second connecting pipe 4012 is connected with tip 4013; as shown in fig. 8 to 9, the sleeve 402 includes a barrel 4021, two rings of annular ribs 4022 are provided on the inner wall of the barrel 4021, two tips 4013 are located between the two rings of annular ribs 4022, the inner diameter of the annular ribs 4022 is less than or equal to the outer diameter of the second connection pipe 4012, the inner ring of the annular ribs 4022 is in close contact with the second connection pipe 4012, a cushion 4014 is provided between the two tips 4013, and the tips 4013 and the annular ribs 4022 are provided with a cushion ring 4015. Cushion 4014, cushion ring 4015 are the rubber material, and annular rib 4022 can restrict first connecting pipe 4011, second connecting pipe 4012 and warp in annular rib 4022 scope, and simultaneously cushion 4014, cushion ring 4015 can compress the power consumption.
The connecting piece includes third end plate 403, and third end plate 403 is connected with support base 404, and third end plate 403 is connected with connecting pipe 401, and support base 404 is connected with concrete beam section 3, boss 102 respectively. As shown in fig. 10, the cross section of the supporting base 404 is triangular, bolt holes are formed in side plates of the supporting base 404, and pressure ribs are arranged in the supporting base 404.
The working principle of the eccentric support-steel beam combined energy dissipation frame is as follows:
when the large-load-bearing energy-dissipating device works, when a large load is applied, the internal bending moment of the beam sections is large, the concrete beam section 3 has high rigidity and is not easy to deform, a large deformation area is formed in the two steel beam sections 2, the steel beam sections 2 generate elastic-plastic deformation, meanwhile, the web plate of the I-steel 201 and the cover plate 202 are rubbed, and energy is dissipated through deformation and friction; when the beam section deforms, the concrete beam section 3 can generate a corner to cause axial deformation of the support section 4, the support section 4 can generate certain deformation to enable the steel beam section 2 to generate certain deformation, when the deformation is overlarge, the deformation limit of the support section 4 is reached, and the support section 4 can restrict the continuous deformation of the beam section, so that the safety and the reliability of the frame structure are ensured.
An assembling method of an eccentric support-steel beam combined energy dissipation frame comprises the following steps:
specifically, the connecting rod 303 is made to pass through the through hole 204 and is locked by a nut, and the first end plate 203 and the second end plate 302 are connected by a bolt, so as to obtain a beam section;
specifically, the first end plate 203 is fixed on the side surface of the boss 102 by a bolt;
specifically, the support section 4 is hoisted, the third end plate 403 is connected with the support base 404 through the bolt, one support base 404 is fixed on the boss 102, the support base 404 is in close contact with the side wall of the pipe body 101, and then the other support base 404 is fixed on the bottom surface of the concrete beam section 3.
Through the mode, the eccentric support-steel beam combined energy dissipation frame has the advantages that the square steel pipe serves as an axial stress part, and meanwhile, concrete is coated outside the square steel pipe to form annular restraint; the I-steel and the cover plate are used as end bending and shearing members, and energy is dissipated through friction and deformation between an I-steel web plate and the cover plate; the sleeve is used for restraining the support section to generate an axial deformation effect within a certain range; the deformation range of the support section is limited through the annular ribs, so that the continuous deformation of the beam section is restrained, and the safety and reliability of the frame structure are guaranteed; the girder steel section can be replaced, guarantees the original function of structure. The assembling method of the eccentric support-steel beam combined energy dissipation frame is simple to operate and easy to realize.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168873.3A CN112962786A (en) | 2021-02-07 | 2021-02-07 | Eccentric support-steel beam combined energy dissipation frame and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110168873.3A CN112962786A (en) | 2021-02-07 | 2021-02-07 | Eccentric support-steel beam combined energy dissipation frame and assembling method thereof |
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| CN112962786A true CN112962786A (en) | 2021-06-15 |
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| CN202110168873.3A Pending CN112962786A (en) | 2021-02-07 | 2021-02-07 | Eccentric support-steel beam combined energy dissipation frame and assembling method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116950249A (en) * | 2023-09-08 | 2023-10-27 | 天津大学 | Replaceable assembled RCS frame system of K-type eccentric support energy consumption section |
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| US20030205008A1 (en) * | 2000-09-12 | 2003-11-06 | Sridhara Benne Narasimha Murthy | Sleeved bracing useful in the construction of earthquake resistant structures |
| CN105604067A (en) * | 2016-01-15 | 2016-05-25 | 北京工业大学 | Snap ring type flanging connecting device for foundation pit assembly type internal bracings |
| CN107816242A (en) * | 2017-10-26 | 2018-03-20 | 中船第九设计研究院工程有限公司 | A kind of tension and compression Self-resetting viscoplasticity energy dissipation brace |
| CN107989180A (en) * | 2017-11-15 | 2018-05-04 | 华侨大学 | A kind of accentric support frame |
| CN111058533A (en) * | 2019-12-27 | 2020-04-24 | 武汉科技大学 | A friction energy dissipation type assembled beam-column connection node |
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2021
- 2021-02-07 CN CN202110168873.3A patent/CN112962786A/en active Pending
Patent Citations (5)
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| US20030205008A1 (en) * | 2000-09-12 | 2003-11-06 | Sridhara Benne Narasimha Murthy | Sleeved bracing useful in the construction of earthquake resistant structures |
| CN105604067A (en) * | 2016-01-15 | 2016-05-25 | 北京工业大学 | Snap ring type flanging connecting device for foundation pit assembly type internal bracings |
| CN107816242A (en) * | 2017-10-26 | 2018-03-20 | 中船第九设计研究院工程有限公司 | A kind of tension and compression Self-resetting viscoplasticity energy dissipation brace |
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Non-Patent Citations (1)
| Title |
|---|
| 日本钢结构协会: "《简明钢与组合结构设计施工资料集成》", 中国建筑工业出版社, pages: 148 - 150 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116950249A (en) * | 2023-09-08 | 2023-10-27 | 天津大学 | Replaceable assembled RCS frame system of K-type eccentric support energy consumption section |
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Application publication date: 20210615 |