CN113152671B - Assembled RC frame node with prevent roof beam power consumption device that falls - Google Patents
Assembled RC frame node with prevent roof beam power consumption device that falls Download PDFInfo
- Publication number
- CN113152671B CN113152671B CN202110418150.4A CN202110418150A CN113152671B CN 113152671 B CN113152671 B CN 113152671B CN 202110418150 A CN202110418150 A CN 202110418150A CN 113152671 B CN113152671 B CN 113152671B
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- Prior art keywords
- steel
- precast concrete
- falling
- memory alloy
- steel cable
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 239000011178 precast concrete Substances 0.000 claims abstract description 25
- 239000004567 concrete Substances 0.000 claims abstract description 18
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 15
- 230000002265 prevention Effects 0.000 claims abstract description 15
- 238000005265 energy consumption Methods 0.000 claims abstract description 14
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 29
- 239000000956 alloy Substances 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000002787 reinforcement Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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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
- E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
- E04B1/21—Connections specially adapted therefor
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Rod-Shaped Construction Members (AREA)
- Reinforcement Elements For Buildings (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to an assembly type RC frame node with a beam falling prevention energy consumption device, which comprises: the device comprises a precast concrete column, an anti-falling beam energy dissipation device fixed in the precast concrete beam, a steel cable and an end steel plate. The built-in anti-falling beam energy dissipation devices in the left beam and the right beam are connected through a steel cable, and an end steel plate is arranged in the middle of the steel cable; longitudinal bars are reserved through the steel bar sleeve connecting beam columns respectively, and concrete pouring is completed. The invention solves the defects of complex site construction process, more site wet operation, inconvenient beam column installation operation and the like of the existing fabricated beam column node; prevent roof beam power consumption device that falls can prevent that dangerous condition such as roof beam that falls from appearing in the beam column node has certain power consumption effect simultaneously, accords with green sustainable development theory.
Description
Technical Field
The invention relates to the technical field of assembly type building structures, in particular to an RC assembly type frame node with a beam falling prevention energy consumption device.
Background
At present, the building construction in China is mainly a traditional construction method mainly based on site construction, and the method has the disadvantages of low industrialization degree, large labor demand, large resource consumption and serious environmental pollution, and cannot meet the construction requirements of energy conservation, environmental protection and sustainable development. In recent years, in order to meet the requirements of 'green buildings' and 'building industrialization and housing industrialization', China advocates to promote an 'industrialization mode' in construction, and related policies are issued, so that a clear development target is provided for an assembled structure.
The assembled node technology in China mainly has the problems of high manufacturing cost, inconvenient stacking of prefabricated parts on a transportation site, more site wet operation, difficulty in guaranteeing the quality of beam-column nodes, complex node construction and the like, and except for solving the problems, as China is in an earthquake-prone area, the earthquake-proof fortification of buildings also needs to meet the standard requirements of 'no damage to small earthquakes, repairable medium earthquakes and no collapse to large earthquakes'.
At the fabricated beam-column joint, the lower, compressed upper part of the beam is pulled, simply by means of cast-in-place concrete at the joint. Because the structure belongs to weak connection, the danger of beam breakage easily occurs, so the dangerous phenomena such as falling of the precast beam and the like are prevented by strengthening the connection between the beam columns at the joint of the beam column nodes. Part of the beam falling prevention energy consumption device is made of memory alloy materials. The memory alloy is a novel functional material, has the advantages of automatic reset, strong energy consumption capability, corrosion resistance, wear resistance, no magnetism, no toxicity and the like, and can be used as an energy consumption damping material in a building structure.
The existing fabricated beam-column node (such as the authorized bulletin numbers of CN107237402A and CN107165272A) utilizes the characteristics that the prestressed reinforcement realizes low-damage autonomous reset after an earthquake, but the prestressed reinforcement cannot be replaced after being damaged, so that the post-earthquake reinforcement maintenance cost is high, the reinforcement maintenance process is complicated, and the dangerous phenomena of beam falling and the like are not considered.
Disclosure of Invention
In view of the defects in the prior art, the invention provides an RC assembled frame node with a beam falling prevention energy consumption device.
In order to achieve the purpose, the invention adopts the following scheme:
an assembled RC frame node with a beam drop prevention energy dissipation device, comprising: the prefabricated concrete column, be fixed in preventing roof beam power consumption device, the tip steel sheet that falls in the prefabricated concrete roof beam. The built-in anti-falling beam energy dissipation devices in the left beam and the right beam are connected through a steel cable, and an end steel plate is arranged in the middle of the steel cable; longitudinal bars are reserved through the steel bar sleeve connecting beam columns respectively, and concrete pouring is completed.
Compared with the prior art, the invention has the following advantages and effects:
1. the invention has the advantages of simple field installation, convenient operation and low noise in field construction.
2. The invention can reduce on-site wet operation and construction waste, and accords with the concept of green sustainable development.
3. According to the invention, the beam falling prevention energy consumption device is arranged in the beam, and the beam falling prevention memory alloy column in the beam falling prevention energy consumption device is combined with the memory alloy ball to generate deformation and dissipate energy. Under the action of earthquake force, the memory alloy ball can ensure that the beam body deforms to dissipate energy, the anti-falling memory alloy column increases the bearing capacity of the beam node, the beam body is protected from excessive deformation, and the built-in steel cable provides tension to prevent the beam from collapsing.
4. The built-in anti-falling beam energy dissipation device is provided with the thin-wall fixing sleeve to restrain the anti-falling beam memory alloy column, so that the bearing capacity is increased, and the anti-falling beam memory alloy column is prevented from being deformed by pressure instability and being damaged too early; the anti-falling beam memory alloy column is arranged in a plum blossom shape, the energy consumption effect of the memory alloy column is fully utilized, and the waste of materials is avoided.
5. The reserved longitudinal bars in the precast beam and the column are connected through the reinforcing steel bar sleeves in an extruding mode, so that the reinforcing steel bar binding time is greatly shortened, the construction period is shortened, and the construction efficiency is improved.
Drawings
FIG. 1 is a schematic plan view of a fabricated RC frame node with an energy dissipation device for preventing beam drop;
FIG. 2 is a schematic plan view of an energy dissipation device with a drop prevention;
FIG. 3 is a cross-sectional view taken along line 1-1 of FIG. 2;
FIG. 4 is a schematic view of a buckle in the anti-drop energy dissipation device;
FIG. 5 is a schematic diagram of an end steel plate in the anti-drop energy dissipation device;
FIG. 6 is a three-dimensional schematic view of a buckle steel plate in the anti-beam-falling energy dissipation device;
in the figure, 1, a precast concrete upper column, 2, a precast concrete lower column, 3, a precast concrete left beam, 4, a precast concrete right beam, 5, an upper column longitudinal rib, 6, a lower column longitudinal rib, 7, a beam upper part longitudinal rib, 8, a beam lower part longitudinal rib, 9, a steel bar sleeve, 10, a beam falling prevention energy consumption device, 11, a built-in rigid sleeve, 12, a buckle, 13, a steel cable, 14, a memory alloy ball, 15, an end steel plate, 16, a buckle steel plate, 17, a beam falling prevention memory alloy column, 18 and a thin-wall fixing sleeve.
Detailed Description
As shown in fig. 1 to 6, an assembled RC frame node having a beam drop prevention energy dissipation device includes: the prefabricated concrete energy-consumption device comprises a prefabricated concrete upper column 1, a prefabricated concrete lower column 2, a prefabricated concrete left beam 3, a prefabricated concrete right beam 4 and an energy-consumption device 10 for preventing beams from falling. The built-in anti-falling beam energy dissipation devices 10 in the left beam and the right beam are connected through a steel cable 13, and the middle part of the steel cable is provided with an end steel plate; longitudinal bars are reserved for connecting the beam columns through the steel bar sleeves respectively.
Built-in roof beam power consumption device 10 that prevents falling includes: the built-in rigid sleeve 11, a buckle 12, a memory alloy ball 14, a buckle steel plate 16, an anti-falling beam memory alloy column 17 and a thin-wall fixing sleeve 18; the built-in rigid sleeve 11 is made of hard steel and is respectively and partially embedded in the precast concrete left beam 3 and the precast concrete right beam 4, the end part of the built-in rigid sleeve 11 is fixed with a buckle 12, the buckle 12 is fixed with a buckle steel plate 16 and is connected into a whole through the buckle 12, and the steel cable 13 is connected with a buckle 6 fixed by the built-in rigid sleeve 11; the anti-falling beam memory alloy column 17 is a cylinder woven by memory alloy materials, five of the anti-falling beam memory alloy columns are in a group and are arranged in a plum blossom shape, two ends of the anti-falling beam memory alloy column are respectively welded on the inner wall of the built-in rigid sleeve 11, a thin-wall fixing sleeve 18 is arranged on the outer side of the anti-falling beam memory alloy column 17, the thin-wall fixing sleeve 18 is made of steel with better pressure resistance and is slightly shorter than the anti-falling beam memory alloy column 17, so that the anti-falling beam memory alloy column 17 is prevented from being damaged in the transportation process; the steel cable 13 is formed by twisting a plurality of steel wires according to a certain rule, a memory alloy ball 14 is filled in a gap between the steel cable 13 and the built-in rigid sleeve 11 and the thin-wall fixing sleeve 18, two ends of the steel cable 13 are respectively connected to the buckles 12 fixed in the two built-in beam falling prevention energy dissipation devices 10, the steel cable 13 penetrates through the center of the end steel plate 15 and is fixed in the middle of the steel cable 13, and the interaction force between concrete and the steel cable 13 is increased through the end steel plate 15.
The prefabricated concrete upper column 1, the reserved upper column longitudinal bar 5 of the prefabricated concrete lower column 2 and the lower column longitudinal bar 6 are connected through a steel bar sleeve 9, the prefabricated concrete left beam 3 and the reserved beam upper part longitudinal bar 7 of the prefabricated concrete right beam 4 and the beam lower part longitudinal bar 8 are also connected through a steel bar sleeve 9, and the length of the reserved steel bar of the prefabricated beam column is ensured to ensure that the adjacent steel bar sleeves 9 are staggered by a certain distance when the prefabricated beam column and the prefabricated beam column are connected through the steel bar sleeve 9; the surfaces of the precast concrete upper column 1 and the precast concrete lower column 2 are both provided with serrated racking grooves, and the precast concrete lower column 2 is in a step shape; the surfaces of the precast concrete left beam 3 and the precast concrete right beam 4 are concave-convex grooves, so that the bonding between the cast-in-place concrete and the precast concrete at the later stage is increased.
And finally, when in-situ pouring is carried out, the installation of the built-in beam falling prevention energy consumption device is firstly completed, the steel cable 13 is connected, the encrypted stirrups are bound at the joints, and finally the concrete pouring is completed.
Claims (1)
1. The utility model provides an assembled RC frame node with prevent roof beam power consumption device that falls, includes that precast concrete goes up post, precast concrete lower prop, precast concrete left beam, precast concrete right beam, prevents falling roof beam power consumption device, cable wire, tip steel sheet, its characterized in that: the energy dissipation devices in the left and right beams are connected through a steel cable, and an end steel plate is arranged in the middle of the steel cable to increase the interaction force between post-cast concrete and the steel cable;
the anti-falling beam energy dissipation device comprises a built-in rigid sleeve, a buckle, a memory alloy ball, a buckle steel plate, an anti-falling beam memory alloy column and a thin-wall fixing sleeve, wherein the built-in rigid sleeve made of hard steel is respectively and partially embedded in a left precast concrete beam and a right precast concrete beam, the end part of the built-in rigid sleeve is fixed with the buckle, the buckle and the buckle steel plate are fixed and connected into a whole through the buckle, the anti-falling beam memory alloy column is a cylinder woven by memory alloy materials and arranged in a quincuncial shape, two ends of the anti-falling beam memory alloy column are respectively welded on the inner wall of the built-in rigid sleeve, and the thin-wall fixing sleeve with better pressure resistance is arranged on the outer side of the anti-falling beam memory alloy column; the steel cable is formed by twisting a plurality of steel wires according to a certain rule, a memory alloy ball is filled in a gap between the steel cable and the built-in rigid sleeve and the thin-wall fixing sleeve, two ends of the steel cable are respectively connected to buckles fixed in the two beam falling prevention energy consumption devices, and the steel cable penetrates through the center of the steel plate at the end part and is fixed in the middle of the steel cable;
precast concrete about post and precast concrete about the reservation of roof beam indulge the muscle and pass through steel sleeve and connect, the length that the reinforcing bar was reserved to the precast beam post should guarantee to use steel sleeve to connect the time adjacent steel sleeve certain distance that staggers, precast concrete about post, precast concrete about the roof beam water the terminal surface position department after the node and all set to horse tooth raft tongue and groove, and precast concrete post is the echelonment down, water partial department stirrup after the node and encrypt the setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110418150.4A CN113152671B (en) | 2021-04-19 | 2021-04-19 | Assembled RC frame node with prevent roof beam power consumption device that falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110418150.4A CN113152671B (en) | 2021-04-19 | 2021-04-19 | Assembled RC frame node with prevent roof beam power consumption device that falls |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113152671A CN113152671A (en) | 2021-07-23 |
| CN113152671B true CN113152671B (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110418150.4A Expired - Fee Related CN113152671B (en) | 2021-04-19 | 2021-04-19 | Assembled RC frame node with prevent roof beam power consumption device that falls |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525679A (en) * | 2016-01-21 | 2016-04-27 | 东南大学 | Local prestress assembly type energy-dissipating beam column joint |
| CN107905402A (en) * | 2017-11-30 | 2018-04-13 | 扬州大学 | A kind of assembled RPC/ Combined concretes frame energy-dissipating and shock-absorbing node |
| WO2019056715A1 (en) * | 2017-09-20 | 2019-03-28 | 中国建筑股份有限公司 | Mixed-connection post-tensioned prestressed assembly concrete frame architecture and construction method therefor |
| CN209369031U (en) * | 2018-12-19 | 2019-09-10 | 长安大学 | A kind of assembled steel reinforced concrete frame node attachment device |
| CN111335467A (en) * | 2020-03-20 | 2020-06-26 | 哈尔滨工业大学 | Self-resetting node connecting structure and assembling method for beam column of assembled concrete frame |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190036248A (en) * | 2017-09-27 | 2019-04-04 | (주)오푸스본 | Seismic retrofit structure for building and seismic retrofit method using the same |
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2021
- 2021-04-19 CN CN202110418150.4A patent/CN113152671B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105525679A (en) * | 2016-01-21 | 2016-04-27 | 东南大学 | Local prestress assembly type energy-dissipating beam column joint |
| WO2019056715A1 (en) * | 2017-09-20 | 2019-03-28 | 中国建筑股份有限公司 | Mixed-connection post-tensioned prestressed assembly concrete frame architecture and construction method therefor |
| CN107905402A (en) * | 2017-11-30 | 2018-04-13 | 扬州大学 | A kind of assembled RPC/ Combined concretes frame energy-dissipating and shock-absorbing node |
| CN209369031U (en) * | 2018-12-19 | 2019-09-10 | 长安大学 | A kind of assembled steel reinforced concrete frame node attachment device |
| CN111335467A (en) * | 2020-03-20 | 2020-06-26 | 哈尔滨工业大学 | Self-resetting node connecting structure and assembling method for beam column of assembled concrete frame |
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| CN113152671A (en) | 2021-07-23 |
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Granted publication date: 20220513 |