CN110258791B - Hinged nondestructive energy consumption prefabricated frame beam column node and construction method thereof - Google Patents
Hinged nondestructive energy consumption prefabricated frame beam column node and construction method thereof Download PDFInfo
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- CN110258791B CN110258791B CN201910516634.5A CN201910516634A CN110258791B CN 110258791 B CN110258791 B CN 110258791B CN 201910516634 A CN201910516634 A CN 201910516634A CN 110258791 B CN110258791 B CN 110258791B
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 29
- 238000010276 construction Methods 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 314
- 239000010959 steel Substances 0.000 claims abstract description 314
- 238000004513 sizing Methods 0.000 claims description 34
- 238000009415 formwork Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims 2
- 238000010008 shearing Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction 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
- E04B1/20—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
- E04B1/215—Connections specially adapted therefor comprising metallic plates or parts
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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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- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a hinged non-damage energy consumption prefabricated frame beam column node and a construction method thereof, wherein the hinged non-damage energy consumption prefabricated frame beam column node comprises a prefabricated column, an embedded steel pipe arranged in the prefabricated column, a prefabricated beam, a first embedded lug plate, a second embedded lug plate and a damper, wherein the free end of the embedded steel pipe extends out of the prefabricated column; the lower part of one side of the precast Liang Kaojin precast column is provided with a lap joint notch, an embedded connecting piece is arranged in the lap joint notch, the embedded connecting piece is U-shaped and is downwards arranged with an opening, and the embedded connecting piece comprises an anchor plate, rib plates arranged on two sides of the anchor plate and anchor ribs arranged on the upper end surface of the anchor plate; the lap joint notch is erected on the free end of the embedded steel pipe, and the rib plate is connected with the free end through a bolt; the first pre-buried otic placode sets up in precast column lateral surface middle part, the free end under, and precast beam lower terminal surface mid point position is provided with the pre-buried otic placode of second. The beam end is not provided with ribs, so that the construction and the installation are convenient; the steel tube replaces steel corbels and plays roles of connection and shearing resistance; has definite mechanics and excellent anti-seismic performance.
Description
Technical Field
The invention relates to the technical field of assembled concrete frame structures, in particular to a hinged nondestructive energy consumption prefabricated frame beam column node and a construction method thereof.
Background
The fabricated concrete frame structure system is widely applied to fabricated buildings, and the structural integrity and reliability of the fabricated concrete frame structure system are mainly realized through connection among prefabricated components, wherein the connection of prefabricated beam column nodes is the key of the fabricated concrete frame structure.
At present, the connection of precast beams and columns is usually cast in situ in a node area or precast beam longitudinal ribs extend into precast columns to perform grouting or mechanical connection, and the node form can cause the following problems under the action of an earthquake: first, the structure is damaged which is difficult to repair; secondly, the energy consumption of the node is mainly realized through plastic deformation of common reinforcing steel bars, and the energy consumption capability is poor; thirdly, the site installation involves the cast-in-situ operation of partial cast-in-situ or pouring seams and the like, and construction difficulties are easy to occur; fourth, the efficiency is low.
Disclosure of Invention
The invention aims to provide a hinged nondestructive energy-consumption prefabricated frame beam column node and a construction method thereof, which aim to solve the technical problems of large structural damage, poor energy consumption capability, difficult construction, difficult modification and the like of the existing assembled concrete frame beam column node.
In order to achieve the above purpose, the invention adopts the following technical scheme: the invention provides a beam column node of a hinged non-damage energy consumption prefabricated frame, which comprises a prefabricated column 1, a pre-buried steel pipe, a prefabricated beam, a first pre-buried lug plate 13, a second pre-buried lug plate 44 and a damper 5, wherein the pre-buried steel pipe is arranged in the prefabricated column 1, and the free end of the pre-buried steel pipe extends out of the prefabricated column 1; the lower part of one side of the precast Liang Kaojin precast column 1 is provided with a lap joint notch 14, an embedded connecting piece 4 is arranged in the lap joint notch 14, the embedded connecting piece 4 is U-shaped and is downwards arranged in an opening, and the embedded connecting piece 4 comprises an anchor plate 41, rib plates 42 arranged on two sides of the anchor plate 41 and anchor ribs 43 arranged on the upper end surface of the anchor plate 41;
the lap joint notch 14 is erected on the free end of the embedded steel pipe, and the rib plate 42 is connected with the free end through bolts;
The first pre-buried lug plate 13 is arranged in the middle of the outer side surface of the prefabricated column 1 and right below the free end, and the second pre-buried lug plate 44 is arranged at the midpoint of the lower end surface of the prefabricated beam; a damper 5 is arranged between the first pre-buried lug plate 13 and the second pre-buried lug plate 44.
Further, the embedded steel pipes are cross-shaped, each embedded steel pipe comprises a transverse embedded steel pipe 11 and a longitudinal embedded steel pipe 12 which are arranged in the prefabricated column 1 in a penetrating manner, the transverse embedded steel pipe 11 and the longitudinal embedded steel pipe 12 are arranged on the same plane, and two longitudinal embedded steel pipes 12 are symmetrically arranged at the middle point of the transverse embedded steel pipe 11; the cross section of the transverse embedded steel pipe 11 and the cross section of the longitudinal embedded steel pipe 12 are rectangular, and the free ends of the transverse embedded steel pipe 11 and the longitudinal embedded steel pipe 12 extend out of the precast column 1;
the precast beam comprises a precast main beam 2 arranged in the transverse direction and a precast secondary beam 3 arranged in the longitudinal direction;
The section of the prefabricated girder 2 is rectangular, and the lap notch 14 of the prefabricated girder 2 is erected on the free end of the transverse embedded steel pipe 11 and is connected with the free end through bolts; the lap notch 14 of the precast secondary beam 3 is erected on the free end of the longitudinal pre-buried steel pipe 12 and is connected with the free end through bolts by the rib plate 42.
Further, the embedded steel pipe is L-shaped.
Further, the embedded steel pipe is T-shaped.
Further, round head pegs 6 are arranged on the surfaces of the transverse embedded steel pipes 11 and the longitudinal embedded steel pipes 12.
Further, a second oblique sizing block 10 is arranged in a gap between the rib plate 42 of the pre-buried connecting piece 4 and the free end.
Further, the second tilting pad 10 has a rectangular shape, at least one corner of the rectangular shape is rounded, and a hole for passing through the bolt is provided in the middle of the rectangular shape.
The invention also provides a construction method of the hinged non-damage energy consumption prefabricated frame beam column node, which comprises the following specific steps:
Step one, formwork pouring precast beam column components: arranging a transverse embedded steel pipe 11, a longitudinal embedded steel pipe 12, a first embedded lug plate 13 and a second embedded lug plate 44 in the prefabricated column 1 during formwork supporting; a lap notch 14 is reserved at the lower part of one side of the prefabricated main beam 2 close to the prefabricated column 1, a lap notch 14 is reserved at the lower part of one side of the prefabricated secondary beam 3, and a pre-buried connecting piece 4 is arranged;
Step two, installing a prefabricated column 1 and adjusting verticality;
Hoisting the prefabricated secondary beam 3, adjusting the position to enable the prefabricated secondary beam to be centered on the free end of the longitudinal embedded steel pipe 12, inserting a second oblique sizing block 10 into a gap between the longitudinal embedded steel pipe 12 and the rib plate 42 of the embedded connecting piece 4, and connecting the embedded connecting piece 4 with the longitudinal embedded steel pipe 12 by adopting a friction type high-strength bolt;
Hoisting the prefabricated main beam 2, adjusting the position to enable the prefabricated main beam to be centered on the free end of the transverse embedded steel pipe 11, plugging a second oblique sizing block 10 into a gap between the transverse embedded steel pipe 11 and the rib plate 42 of the embedded connecting piece 4, and connecting the embedded connecting piece 4 with the transverse embedded steel pipe 11 by adopting a friction type high-strength bolt;
and fifthly, installing the damper 5 between the first embedded lug plate 13 and the second embedded lug plate 44 respectively.
The invention provides a beam column node of a hinged non-damage energy consumption prefabricated frame, which comprises a prefabricated column 1, a pre-buried steel pipe, a prefabricated beam, a splicing steel pipe, a first pre-buried lug plate 13, a second pre-buried lug plate 44 and a damper 5 which are arranged in the prefabricated column 1,
The inserted steel pipe is arranged in the embedded steel pipe, and the free end of the inserted steel pipe extends out of the prefabricated column 1;
The lower part of one side of the precast Liang Kaojin precast column 1 is provided with a lap joint notch 14, an embedded connecting piece 4 is arranged in the lap joint notch 14, the embedded connecting piece 4 is U-shaped and is downwards arranged in an opening, and the embedded connecting piece 4 comprises an anchor plate 41, rib plates 42 arranged on two sides of the anchor plate 41 and anchor ribs 43 arranged on the upper end surface of the anchor plate 41;
The lap joint notch 14 is erected on the free end of the inserted steel pipe, and the rib plate 42 is connected with the free end through bolts;
The first pre-buried lug plate 13 is arranged in the middle of the outer side surface of the prefabricated column 1 and right below the free end, and the second pre-buried lug plate 44 is arranged at the midpoint of the lower end surface of the prefabricated beam; a damper 5 is arranged between the first pre-buried lug plate 13 and the second pre-buried lug plate 44.
Further, the embedded steel pipes are cross-shaped, the free ends of the embedded steel pipes are flush with the outer surface of the prefabricated column, the embedded steel pipes comprise transverse embedded steel pipes 11 and longitudinal embedded steel pipes 12, the transverse embedded steel pipes 11 are arranged in the prefabricated column 1 in a penetrating mode, the longitudinal embedded steel pipes 12 are arranged in the prefabricated column 1 in a penetrating mode, the lower portions of the transverse embedded steel pipes 11 are arranged in the prefabricated column 1 in a penetrating mode, and the cross sections of the transverse embedded steel pipes 11 and the cross sections of the longitudinal embedded steel pipes 12 are rectangular;
The section of the inserted steel pipe is rectangular, the inserted steel pipe comprises a transverse inserted steel pipe 8 arranged in a transverse embedded steel pipe 11 and a longitudinal inserted steel pipe 9 arranged in a longitudinal embedded steel pipe 12, and the free ends of the transverse inserted steel pipe 8 and the longitudinal inserted steel pipe 9 extend out of the precast column 1;
the precast beam comprises a precast main beam 2 arranged in the transverse direction and a precast secondary beam 3 arranged in the longitudinal direction;
The section of the prefabricated girder 2 is rectangular, and the lap notch 14 of the prefabricated girder 2 is erected on the free end of the transverse splicing steel pipe 8 and is connected with the free end through bolts; the lap notch 14 of the precast secondary beam 3 is arranged on the free end of the longitudinal splicing steel pipe 9 and is connected with the free end through bolts by the rib plate 42.
Further, a first oblique sizing block 7 is arranged between the transverse embedded steel pipe 11 and the transverse inserted steel pipe 8; the longitudinal embedded steel pipe 12 and the longitudinal inserted steel pipe 9 are internally provided with a first oblique sizing block 7.
The invention also provides a construction method of the hinged non-damage energy consumption prefabricated frame beam column node, which comprises the following specific steps:
Step one, formwork pouring precast beam column components: arranging a transverse embedded steel pipe 11, a longitudinal embedded steel pipe 12, a first embedded lug plate 13 and a second embedded lug plate 44 in the prefabricated column 1 during formwork supporting; a lap notch 14 is reserved at the lower part of one side of the prefabricated main beam 2 close to the prefabricated column 1, a lap notch 14 is reserved at the lower part of one side of the prefabricated secondary beam 3, and a pre-buried connecting piece 4 is arranged;
Step two, installing a prefabricated column 1 and adjusting verticality;
step three, installing a longitudinal inserting steel pipe 9, adjusting the position, inserting a first steel oblique sizing block 7 into a gap between a longitudinal pre-embedded steel pipe 12 and the longitudinal inserting steel pipe 9, and fixing the longitudinal inserting steel pipe 9;
Installing a transverse inserted steel pipe 8, adjusting the position, inserting a first steel oblique sizing block 7 into a gap between a transverse embedded steel pipe 11 and the transverse inserted steel pipe 8, and fixing the transverse inserted steel pipe 8;
step five, hoisting the prefabricated secondary beam 3, adjusting the position to enable the prefabricated secondary beam to be centered on the free end of the longitudinal inserting steel pipe 9, inserting a second oblique sizing block 10 into a gap between the longitudinal inserting steel pipe 9 and the rib plate 42 of the embedded connecting piece 4, and connecting the embedded connecting piece 4 with the longitudinal inserting steel pipe 9 by adopting a friction type high-strength bolt;
Step six, hoisting the prefabricated main beam 2, adjusting the position to enable the prefabricated main beam to be centered on the free end of the transverse splicing steel pipe 8, plugging a second oblique sizing block 10 into a gap between the transverse splicing steel pipe 8 and the rib plate 42 of the embedded connecting piece 4, and connecting the embedded connecting piece 4 with the transverse splicing steel pipe 8 by adopting a friction type high-strength bolt;
Step seven, respectively installing a damper 5 between the first embedded lug plate 13 and the second embedded lug plate 44;
And step eight, checking the first oblique sizing block 7 to ensure the position fixation of the transverse inserted steel pipe 8.
Further, the distance between two adjacent rib plates 42 is 2-5mm; one side of the rib 42 is rounded.
Further, the overlap notch 14 has a depth of 100-400mm.
Further, the first tilting pad 7 is trapezoidal; the first tilting pad 7 is made of Q235 steel; the first tilting pad 7 is provided with a hole for passing through the bolt.
The beneficial effects of the invention are as follows:
The invention provides the hinged nondestructive energy consumption prefabricated frame beam column node and the construction method thereof, and the prefabricated frame beam column node has the advantages of ingenious structure, simple structure, reasonable design and convenient component processing. Arranging embedded parts on the precast beam columns, and connecting joints by adopting friction type high-strength bolts, namely, adopting a hinged connection mode for the precast beam columns; and the bending resistance and energy consumption of the node adopt a damper. The invention achieves the 'strong column and weak beam' of the anti-seismic concept in design, improves the energy consumption performance of the node, and can realize high-efficiency assembly without overhanging reinforcing steel bars of the prefabricated part.
2, The beam-column joint of the hinged non-damage energy-consumption prefabricated frame and the construction method thereof provided by the invention have the advantages that the beam end is not reinforced, and the construction and the installation are convenient; the steel tube replaces steel corbels and plays roles of connection and shearing resistance; has definite mechanics and excellent anti-seismic performance.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The primary object and other advantages of the invention may be realized and attained by means of the instrumentalities and particularly pointed out in the specification.
Drawings
The invention is described in further detail below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the basic composition of a beam-column edge node of a hinged atraumatic energy-consuming prefabricated frame;
FIG. 2 is a schematic view of the basic composition of the joints in a hinged atraumatic energy-dissipating prefabricated frame beam column of example 1;
FIG. 3 is a schematic view of a precast main beam and precast column joint;
FIG. 4 is a schematic view of the precast main beams and precast column locations;
FIG. 5 is a schematic illustration of a precast secondary beam and precast column node;
FIG. 6 is a schematic diagram of the connection of a transverse plug steel pipe to a transverse pre-buried steel pipe;
FIG. 7 is a schematic view of the structure of the embedded steel pipe of example 1;
FIG. 8 is a schematic view of the structure of the embedded steel pipe of example 4;
FIG. 9 is a schematic illustration of a pre-buried connector structure;
FIG. 10 is a schematic diagram of an energy dissipating diagonal pad iron arrangement;
FIG. 11 is a second diagonal pad iron schematic;
FIG. 12 is a schematic diagram of an adjustable energy consumer;
FIG. 13 is a schematic view of a first tilt pad;
fig. 14 is a schematic view of the structure of the embedded steel pipe of example 2;
FIG. 15 is a schematic view of the structure of the embedded steel pipe of example 3;
FIG. 16 is a schematic view of the structure of the embedded steel pipe of example 5;
Fig. 17 is a schematic view of the structure of the embedded steel pipe of example 6.
Reference numerals: 1-prefabricated column, 11-transverse embedded steel pipe, 12-longitudinal embedded steel pipe, 13-first embedded lug plate, 14-lap joint notch,
2-Prefabricated main beams, 3-prefabricated secondary beams, 4-pre-embedded connectors, 41-anchor plates, 42-rib plates, 43-anchor bars, 44-second pre-embedded lug plates,
The device comprises a 5-damper, a 6-stud, a 7-first oblique sizing block, an 8-transverse inserted steel pipe, a 9-longitudinal inserted steel pipe and a 10-second oblique sizing block.
Detailed Description
The following examples are given by way of illustration only and are not to be construed as limiting the scope of the invention.
The fabricated concrete frame structure system is widely applied to fabricated buildings, and the structural integrity and reliability of the fabricated concrete frame structure system are mainly realized through connection among prefabricated components, wherein the connection of prefabricated beam column nodes is the key of the fabricated concrete frame structure. The invention provides the following examples: arranging embedded parts on the precast beam columns, and connecting joints by adopting friction type high-strength bolts, namely, adopting a hinged connection mode for the precast beam columns; and the bending resistance and energy consumption of the node adopt a damper.
Example 1
As shown in fig. 2, the invention provides a hinged non-damaged energy-consumption prefabricated frame beam column node, which is a middle node. The prefabricated column comprises a prefabricated column 1, an embedded steel pipe arranged in the prefabricated column 1, a prefabricated beam, a first embedded lug plate 13, a second embedded lug plate 44 and a damper 5, wherein the free end of the embedded steel pipe extends out of the prefabricated column 1; the lap joint notch 14 is arranged at the lower part of one side of the precast Liang Kaojin precast column 1, and the embedded connecting piece 4 is arranged in the lap joint notch 14.
Referring to fig. 9, the pre-buried connection member 4 is U-shaped and has a downward opening, and the pre-buried connection member 4 includes an anchor plate 41, rib plates 42 provided at both sides of the anchor plate 41, and anchor bars 43 provided at an upper end surface of the anchor plate 41; the lap notch 14 is set up on the free end of the pre-buried steel pipe and the rib 42 is bolted to the free end. The second oblique sizing block 10 is arranged in a gap between the rib plate 42 and the free end of the embedded connecting piece 4, the second oblique sizing block 10 is rectangular, at least one corner of the rectangle is a rounded corner, and a hole for passing through a bolt is formed in the middle of the rectangle.
The first pre-buried lug plate 13 is arranged in the middle of the outer side surface of the prefabricated column 1 and right below the free end, and the second pre-buried lug plate 44 is arranged at the midpoint of the lower end surface of the prefabricated beam; the damper 5 is arranged between the first embedded lug 13 and the second embedded lug 44, and the obliquely arranged damper 5 can well realize bending resistance and energy consumption of the node.
As shown in fig. 7, in this embodiment, the embedded steel pipes are cross-shaped, and each embedded steel pipe includes a transverse embedded steel pipe 11 and a longitudinal embedded steel pipe 12 that are arranged in the prefabricated column 1 in a penetrating manner, the transverse embedded steel pipe 11 and the longitudinal embedded steel pipe 12 are on the same plane, and two longitudinal embedded steel pipes 12 are symmetrically arranged at the midpoint position of the transverse embedded steel pipe 11; the cross section of the transverse embedded steel pipe 11 and the cross section of the longitudinal embedded steel pipe 12 are rectangular, and the free ends of the transverse embedded steel pipe 11 and the longitudinal embedded steel pipe 12 extend out of the precast column 1; round head pegs 6 are arranged on the surfaces of the transverse embedded steel pipes 11 and the longitudinal embedded steel pipes 12. The embedded steel pipe and the precast column 1 are ensured to form a whole.
The precast beam comprises a precast main beam 2 arranged in the transverse direction and a precast secondary beam 3 arranged in the longitudinal direction; the section of the prefabricated girder 2 is rectangular, and the lap notch 14 of the prefabricated girder 2 is erected on the free end of the transverse embedded steel pipe 11 and is connected with the free end through bolts; the lap notch 14 of the precast secondary beam 3 is erected on the free end of the longitudinal pre-buried steel pipe 12 and is connected with the free end through bolts by the rib plate 42. The precast beam is connected with the precast column 1 to form a fixed hinged support, and the shearing force is transmitted.
The top surface of the lap joint notch 14 on the prefabricated main beam 2 generally does not exceed the center line of the section of the prefabricated main beam 2, the top surface of the rectangular notch of the prefabricated secondary beam 3 can exceed the center line of the section of the prefabricated secondary beam, but the shearing bearing capacity of the section of the beam end is ensured to meet the design requirement.
The construction method of the hinged non-damage energy consumption prefabricated frame beam column node comprises the following specific steps:
Step one, formwork pouring precast beam column components: arranging a transverse embedded steel pipe 11, a longitudinal embedded steel pipe 12, a first embedded lug plate 13 and a second embedded lug plate 44 in the prefabricated column 1 during formwork supporting; a lap notch 14 is reserved at the lower part of one side of the prefabricated main beam 2 close to the prefabricated column 1, a lap notch 14 is reserved at the lower part of one side of the prefabricated secondary beam 3, and a pre-buried connecting piece 4 is arranged;
Step two, installing a prefabricated column 1 and adjusting verticality;
Hoisting the prefabricated secondary beam 3, adjusting the position to enable the prefabricated secondary beam to be centered on the free end of the longitudinal embedded steel pipe 12, inserting a second oblique sizing block 10 into a gap between the longitudinal embedded steel pipe 12 and the rib plate 42 of the embedded connecting piece 4, and connecting the embedded connecting piece 4 with the longitudinal embedded steel pipe 12 by adopting a friction type high-strength bolt;
Hoisting the prefabricated main beam 2, adjusting the position to enable the prefabricated main beam to be centered on the free end of the transverse embedded steel pipe 11, plugging a second oblique sizing block 10 into a gap between the transverse embedded steel pipe 11 and the rib plate 42 of the embedded connecting piece 4, and connecting the embedded connecting piece 4 with the transverse embedded steel pipe 11 by adopting a friction type high-strength bolt;
And fifthly, installing the damper 5 between the first embedded lug plate 13 and the second embedded lug plate 44 respectively. Hot rolled rectangular steel pipes or plates may be used for welding. In order to reduce the weight, the central web or flange can be grooved or perforated under the condition that the mechanical properties meet the requirements.
Embodiment 2, a hinged nondestructive energy consumption prefabricated frame beam column node and a construction method thereof, are different from embodiment 1 in that the prefabricated frame beam column node is an end node. The embedded steel pipe is L-shaped and comprises a transverse embedded steel pipe 11 and a longitudinal embedded steel pipe 12, the transverse embedded steel pipe 11 and the longitudinal embedded steel pipe 12 are arranged on the same plane, embedded ends of the transverse embedded steel pipe 11 and the longitudinal embedded steel pipe 12 are welded and fixed, and free ends of the transverse embedded steel pipe and the longitudinal embedded steel pipe 12 extend out of the prefabricated column 1. Is an end node. See fig. 1, 14.
Embodiment 3, a hinge-joint non-damage energy-consumption prefabricated frame beam column node and a construction method thereof, which are similar to embodiment 1, are different in that the embedded steel pipe is T-shaped, including a transverse embedded steel pipe 11 and a longitudinal embedded steel pipe 12 which are arranged in the prefabricated column 1 in a penetrating manner, and an embedded end of the longitudinal embedded steel pipe 12 is arranged at a midpoint position of the transverse embedded steel pipe 11. See fig. 15.
Example 4
Referring to fig. 3, 4, 5 and 6, the invention further provides a beam column node of the hinged non-damage energy consumption prefabricated frame, which comprises a prefabricated column 1, a pre-buried steel pipe arranged in the prefabricated column 1, a prefabricated beam, a splicing steel pipe, a first pre-buried lug plate 13, a second pre-buried lug plate 44 and a damper 5, wherein the splicing steel pipe is arranged in the pre-buried steel pipe, and the free end of the splicing steel pipe extends out of the prefabricated column 1; the inner section size of the embedded steel pipe is 5-10mm larger than the outer section size of the inserted steel pipe so as to ensure that the sleeved steel pipe runs through smoothly.
The lower part of one side of the precast Liang Kaojin precast column 1 is provided with a lap joint notch 14, an embedded connecting piece 4 is arranged in the lap joint notch 14, the embedded connecting piece 4 is U-shaped and is downwards arranged in an opening, and the embedded connecting piece 4 comprises an anchor plate 41, rib plates 42 arranged on two sides of the anchor plate 41 and anchor ribs 43 arranged on the upper end surface of the anchor plate 41; the clear width between the two rib plates 42 is 2-5mm wider than the inserting steel pipe, and the rib plate angles close to the corner of the lap joint notch 14 are subjected to chamfering treatment.
The overlap notch 14 is provided on the free end of the spliced steel pipe and bolted between the rib 42 and the free end. The overlap notch 14 has a depth of 100-400mm.
The first pre-buried lug plate 13 is arranged in the middle of the outer side surface of the prefabricated column 1 and right below the free end, and the second pre-buried lug plate 44 is arranged at the midpoint of the lower end surface of the prefabricated beam; a damper 5 is arranged between the first pre-buried lug plate 13 and the second pre-buried lug plate 44. See fig. 12.
As shown in fig. 8, the embedded steel pipe is cross-shaped, the free end of the embedded steel pipe is flush with the outer surface of the prefabricated column, the embedded steel pipe comprises a transverse embedded steel pipe 11 and a longitudinal embedded steel pipe 12, the transverse embedded steel pipe 11 is communicated with the prefabricated column 1, the longitudinal embedded steel pipe 12 is communicated with the lower part of the transverse embedded steel pipe 11 in the prefabricated column 1, and the cross section of the transverse embedded steel pipe 11 and the cross section of the longitudinal embedded steel pipe 12 are rectangular.
The section of the inserted steel pipe is rectangular, the inserted steel pipe comprises a transverse inserted steel pipe 8 arranged in a transverse embedded steel pipe 11 and a longitudinal inserted steel pipe 9 arranged in a longitudinal embedded steel pipe 12, and the free ends of the transverse inserted steel pipe 8 and the longitudinal inserted steel pipe 9 extend out of the precast column 1.
As shown in fig. 13, a first oblique sizing block 7 is arranged between the transverse embedded steel pipe 11 and the transverse inserted steel pipe 8; the longitudinal embedded steel pipe 12 and the longitudinal inserted steel pipe 9 are internally provided with a first oblique sizing block 7. The size and thickness of the transverse inserted steel pipe 8 and the longitudinal inserted steel pipe 9 can meet the shearing bearing capacity requirement of the node. And a gap of 10-20mm is reserved between one end of the transverse splicing steel pipe 8 and one end of the longitudinal splicing steel pipe 9 and the deep end face of the notch of the beam end, and the other end of the middle node penetrates through the embedded steel pipe to be connected with the beam end on the other side of the column. The transverse embedded steel pipes 11 and the longitudinal embedded steel pipes 12 are arranged in a staggered manner up and down, and slotting treatment can be carried out on the longitudinal embedded steel pipes 12 and the plugging steel pipes 9 if necessary.
The precast beam comprises a precast main beam 2 arranged in the transverse direction and a precast secondary beam 3 arranged in the longitudinal direction; the section of the prefabricated girder 2 is rectangular, and the lap notch 14 of the prefabricated girder 2 is erected on the free end of the transverse splicing steel pipe 8 and is connected with the free end through bolts; the lap notch 14 of the precast secondary beam 3 is arranged on the free end of the longitudinal splicing steel pipe 9 and is connected with the free end through bolts by the rib plate 42. The embedded steel pipe and the inserted steel pipe are provided with holes and are connected by friction type high-strength bolts.
The construction method of the hinged non-damage energy consumption prefabricated frame beam column node comprises the following specific steps:
Step one, formwork pouring precast beam column components: arranging a transverse embedded steel pipe 11, a longitudinal embedded steel pipe 12, a first embedded lug plate 13 and a second embedded lug plate 44 in the prefabricated column 1 during formwork supporting; a lap notch 14 is reserved at the lower part of one side of the prefabricated main beam 2 close to the prefabricated column 1, a lap notch 14 is reserved at the lower part of one side of the prefabricated secondary beam 3, and a pre-buried connecting piece 4 is arranged;
Step two, installing a prefabricated column 1 and adjusting verticality;
step three, installing a longitudinal inserting steel pipe 9, adjusting the position, inserting a first steel oblique sizing block 7 into a gap between a longitudinal pre-embedded steel pipe 12 and the longitudinal inserting steel pipe 9, and fixing the longitudinal inserting steel pipe 9;
Installing a transverse inserted steel pipe 8, adjusting the position, inserting a first steel oblique sizing block 7 into a gap between a transverse embedded steel pipe 11 and the transverse inserted steel pipe 8, and fixing the transverse inserted steel pipe 8;
Step five, hoisting the prefabricated secondary beam 3, adjusting the position to enable the prefabricated secondary beam to be centered on the free end of the longitudinal inserting steel pipe 9, inserting a second oblique sizing block 10 into a gap between the longitudinal inserting steel pipe 9 and the rib plate 42 of the embedded connecting piece 4, and connecting the embedded connecting piece 4 with the longitudinal inserting steel pipe 9 by adopting a friction type high-strength bolt; the second oblique sizing block 10 is provided with an orifice for penetrating the friction type high-strength bolt, and the orifice is designed in size to consider the diameter of the high-strength bolt and the installation error. The second tilting pad 10 is in a shape like a Chinese character 'hui' and adopts the end width of Q235 mild steel to be in clearance with the steel pipe. See fig. 10, 11.
Step six, hoisting the prefabricated main beam 2, adjusting the position to enable the prefabricated main beam to be centered on the free end of the transverse splicing steel pipe 8, plugging a second oblique sizing block 10 into a gap between the transverse splicing steel pipe 8 and the rib plate 42 of the embedded connecting piece 4, and connecting the embedded connecting piece 4 with the transverse splicing steel pipe 8 by adopting a friction type high-strength bolt;
Step seven, respectively installing a damper 5 between the first embedded lug plate 13 and the second embedded lug plate 44;
and step eight, checking the first oblique sizing block 7 to ensure the position fixation of the transverse inserted steel pipe 8. The first oblique sizing block 7 is trapezoidal; the first tilting pad 7 is made of Q235 steel; the first tilting pad 7 is provided with a hole for passing through the bolt.
Embodiment 5, a hinged nondestructive energy consumption prefabricated frame beam column node and a construction method thereof, which are similar to embodiment 4, are different in that the embedded steel pipe is in a T shape, as shown in fig. 16.
The free end of the embedded steel pipe is flush with the outer surface of the prefabricated column, the embedded steel pipe comprises a transverse embedded steel pipe 11 and a longitudinal embedded steel pipe 12, and the transverse embedded steel pipe 11 and the longitudinal embedded steel pipe 12 are not in the same plane. The transverse embedded steel pipe 11 is arranged in the prefabricated column 1 in a penetrating mode, and the longitudinal embedded steel pipe 12 is arranged at the midpoint position of the upper end face of the transverse embedded steel pipe 11. The transverse inserted steel pipe 8 is arranged in the transverse embedded steel pipe 11 in a penetrating mode, one end of the longitudinal inserted steel pipe 9 is welded with the longitudinal embedded steel pipe 12, and the other end of the longitudinal inserted steel pipe extends out of the precast column 1.
Of course, the longitudinal embedded steel pipe 12 may be disposed at a midpoint of the lower end surface of the transverse embedded steel pipe 11.
Embodiment 6, a hinged non-damaged energy-dissipation prefabricated frame beam column node and a construction method thereof, which are the same as embodiment 4, are different in that the embedded steel pipe is L-shaped, as shown in fig. 17. The free end of the embedded steel pipe is flush with the outer surface of the prefabricated column, the embedded steel pipe comprises a transverse embedded steel pipe 11 and a longitudinal embedded steel pipe 12, the transverse embedded steel pipe 11 and the longitudinal embedded steel pipe 12 are not in the same plane, and the embedded end of the longitudinal embedded steel pipe 12 is welded and arranged right below the embedded end of the transverse embedded steel pipe 11.
Embodiment 7, a beam column node of a hinged nondestructive energy-saving prefabricated frame and a construction method thereof, which are similar to embodiment 1 or 4, are different in that a second pre-buried lug plate 44 is arranged at a non-midpoint position of the lower end surface of the prefabricated main beam 2 and a non-midpoint position of the lower end surface of the prefabricated secondary beam 3.
In the above embodiments 1 to 7, the inclination angle of the damper 5 is set according to the building design requirement and the node stress requirement. The damper 5 is provided with a length adjusting structure, one end of the energy dissipation device is divided into two sections, the two sections are connected through a steel sleeve with threads, and the length of the energy dissipation device can be changed by rotating the steel sleeve. And welding two sections of the energy dissipater to form a whole after the energy dissipater is installed. See fig. 12.
The invention achieves the 'strong column and weak beam' of the anti-seismic concept in design, improves the energy consumption performance of the node, and can realize high-efficiency assembly without overhanging reinforcing steel bars of the prefabricated part. The structure is simple, and the processing of the components is convenient. The steel tube is adopted to replace steel corbels, and meanwhile, the connecting and shearing resisting functions are achieved. Has definite mechanics and excellent anti-seismic performance.
The foregoing is merely illustrative of preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any changes or substitutions that would occur to those skilled in the art within the scope of the present invention are intended to be included in the scope of the present invention.
Claims (5)
1. A construction method for hinging a beam column node of a nondestructive energy-consumption prefabricated frame is characterized in that,
The precast frame beam column node comprises a precast column (1), and an embedded steel pipe, a precast beam, a first embedded lug plate (13), a second embedded lug plate (44) and a damper (5) which are arranged in the precast column (1), wherein the free end of the embedded steel pipe extends out of the precast column (1); a lap joint notch (14) is formed in the lower portion of one side of the prefabricated Liang Kaojin prefabricated column (1), a pre-buried connecting piece (4) is arranged in the lap joint notch (14), the pre-buried connecting piece (4) is U-shaped and is downwards arranged in an opening, and the pre-buried connecting piece (4) comprises an anchor plate (41), rib plates (42) arranged on two sides of the anchor plate (41) and anchor ribs (43) arranged on the upper end face of the anchor plate (41);
the lap joint notch (14) is erected on the free end of the embedded steel pipe and is connected with the free end through bolts;
The first pre-buried lug plate (13) is arranged in the middle of the outer side surface of the prefabricated column (1) and under the free end, and a second pre-buried lug plate (44) is arranged at the midpoint of the lower end surface of the prefabricated beam; a damper (5) is arranged between the first pre-embedded ear plate (13) and the second pre-embedded ear plate (44); the embedded steel pipes are cross-shaped, each embedded steel pipe comprises a transverse embedded steel pipe (11) and a longitudinal embedded steel pipe (12) which are arranged in the prefabricated column (1) in a penetrating mode, the transverse embedded steel pipes (11) and the longitudinal embedded steel pipes (12) are arranged on the same plane, and the two longitudinal embedded steel pipes (12) are symmetrically arranged at the middle point of the transverse embedded steel pipe (11); the cross section of the transverse embedded steel pipe (11) and the cross section of the longitudinal embedded steel pipe (12) are rectangular, and the free ends of the transverse embedded steel pipe (11) and the longitudinal embedded steel pipe (12) extend out of the precast column (1);
the precast beam comprises a precast main beam (2) arranged in the transverse direction and a precast secondary beam (3) arranged in the longitudinal direction;
The section of the prefabricated main beam (2) is rectangular, and the lap joint notch (14) of the prefabricated main beam (2) is erected on the free end of the transverse embedded steel pipe (11) and is connected with the free end through bolts; the lap joint notch (14) of the prefabricated secondary beam (3) is erected on the free end of the longitudinal embedded steel pipe (12), and the rib plates (42) are connected with the free end through bolts; round head pegs (6) are arranged on the surfaces of the transverse embedded steel pipes (11) and the longitudinal embedded steel pipes (12);
The method comprises the following specific steps:
Step one, formwork pouring precast beam column components: when the formwork is supported, a transverse embedded steel pipe (11), a longitudinal embedded steel pipe (12), a first embedded lug plate (13) and a second embedded lug plate (44) are arranged in the prefabricated column (1); a lap joint notch (14) is reserved at the lower part of one side of the prefabricated main beam (2) close to the prefabricated column (1), a lap joint notch (14) is reserved at the lower part of one side of the prefabricated secondary beam (3), and a pre-buried connecting piece (4) is arranged;
step two, installing a prefabricated column (1), and adjusting verticality;
Hoisting the prefabricated secondary beam (3), adjusting the position to enable the prefabricated secondary beam to be centered on the free end of the longitudinal embedded steel pipe (12), plugging a second oblique sizing block (10) into a gap between the longitudinal embedded steel pipe (12) and a rib plate (42) of the embedded connecting piece (4), and connecting the embedded connecting piece (4) with the longitudinal embedded steel pipe (12) by adopting a friction type high-strength bolt;
Hoisting a prefabricated main beam (2), adjusting the position to enable the prefabricated main beam to be centered on the free end of a transverse embedded steel pipe (11), plugging a second oblique sizing block (10) into a gap between the transverse embedded steel pipe (11) and a rib plate (42) of an embedded connecting piece (4), and connecting the embedded connecting piece (4) with the transverse embedded steel pipe (11) by adopting a friction type high-strength bolt;
And fifthly, respectively installing a damper (5) between the first embedded lug plate (13) and the second embedded lug plate (44).
2. The construction method according to claim 1, characterized in that a second tilting pad (10) is arranged in the gap between the rib (42) and the free end of the pre-buried connecting piece (4).
3. The construction method according to claim 1, wherein the second tilting pad (10) is rectangular, at least one corner of the rectangle is rounded, and a hole for passing a bolt is provided in the middle of the rectangle.
4. A construction method for hinging a beam column node of a nondestructive energy-consumption prefabricated frame is characterized in that,
The precast frame beam column node comprises a precast column (1), an embedded steel pipe, a precast beam, an inserted steel pipe, a first embedded lug plate (13), a second embedded lug plate (44) and a damper (5) which are arranged in the precast column (1),
The inserted steel pipe is arranged in the embedded steel pipe, and the free end of the inserted steel pipe extends out of the prefabricated column (1);
A lap joint notch (14) is formed in the lower portion of one side of the prefabricated Liang Kaojin prefabricated column (1), a pre-buried connecting piece (4) is arranged in the lap joint notch (14), the pre-buried connecting piece (4) is U-shaped and is downwards arranged in an opening, and the pre-buried connecting piece (4) comprises an anchor plate (41), rib plates (42) arranged on two sides of the anchor plate (41) and anchor ribs (43) arranged on the upper end face of the anchor plate (41);
the lap joint notch (14) is erected on the free end of the inserted steel pipe and is connected with the free end through bolts;
The first pre-buried lug plate (13) is arranged in the middle of the outer side surface of the prefabricated column (1) and under the free end, and a second pre-buried lug plate (44) is arranged at the midpoint of the lower end surface of the prefabricated beam; a damper (5) is arranged between the first pre-embedded ear plate (13) and the second pre-embedded ear plate (44); the embedded steel pipe is cross-shaped, the free end of the embedded steel pipe is flush with the outer surface of the prefabricated column, the embedded steel pipe comprises a transverse embedded steel pipe (11) and a longitudinal embedded steel pipe (12), the transverse embedded steel pipe (11) is arranged in the prefabricated column (1) in a penetrating manner, the longitudinal embedded steel pipe (12) is arranged in the prefabricated column (1) in a penetrating manner, the lower part of the transverse embedded steel pipe (11) is provided with a rectangular cross section, and the cross section of the transverse embedded steel pipe (11) and the cross section of the longitudinal embedded steel pipe (12) are rectangular;
The section of the inserted steel pipe is rectangular, the inserted steel pipe comprises a transverse inserted steel pipe (8) arranged in a transverse embedded steel pipe (11) and a longitudinal inserted steel pipe (9) arranged in a longitudinal embedded steel pipe (12), and the free ends of the transverse inserted steel pipe (8) and the longitudinal inserted steel pipe (9) extend out of the precast column (1);
the precast beam comprises a precast main beam (2) arranged in the transverse direction and a precast secondary beam (3) arranged in the longitudinal direction;
the section of the prefabricated main beam (2) is rectangular, and the lap joint notch (14) of the prefabricated main beam (2) is erected on the free end of the transverse splicing steel pipe (8) and is connected with the free end through bolts; the lap joint notch (14) of the prefabricated secondary beam (3) is erected on the free end of the longitudinal splicing steel pipe (9) and is connected with the free end through bolts;
The method comprises the following specific steps:
Step one, formwork pouring precast beam column components: when the formwork is supported, a transverse embedded steel pipe (11), a longitudinal embedded steel pipe (12), a first embedded lug plate (13) and a second embedded lug plate (44) are arranged in the prefabricated column (1); a lap joint notch (14) is reserved at the lower part of one side of the prefabricated main beam (2) close to the prefabricated column (1), a lap joint notch (14) is reserved at the lower part of one side of the prefabricated secondary beam (3), and a pre-buried connecting piece (4) is arranged;
step two, installing a prefabricated column (1), and adjusting verticality;
Step three, installing a longitudinal inserting steel pipe (9), adjusting the position, inserting a first steel oblique sizing block (7) into a gap between a longitudinal pre-embedded steel pipe (12) and the longitudinal inserting steel pipe (9), and fixing the longitudinal inserting steel pipe (9);
Installing a transverse inserting steel pipe (8), adjusting the position, inserting a first steel oblique sizing block (7) into a gap between the transverse embedded steel pipe (11) and the transverse inserting steel pipe (8), and fixing the transverse inserting steel pipe (8);
step five, hoisting the prefabricated secondary beam (3), adjusting the position to enable the prefabricated secondary beam to be centered on the free end of the longitudinal splicing steel pipe (9), plugging a second oblique sizing block (10) into a gap between the longitudinal splicing steel pipe (9) and a rib plate (42) of the embedded connecting piece (4), and connecting the embedded connecting piece (4) with the longitudinal splicing steel pipe (9) by adopting a friction type high-strength bolt;
step six, hoisting the prefabricated main beam (2), adjusting the position to enable the prefabricated main beam to be centered on the free end of the transverse splicing steel pipe (8), plugging a second oblique sizing block (10) into a gap between the transverse splicing steel pipe (8) and a rib plate (42) of the embedded connecting piece (4), and connecting the embedded connecting piece (4) with the transverse splicing steel pipe (8) by adopting a friction type high-strength bolt;
Step seven, respectively installing a damper (5) between the first embedded lug plate (13) and the second embedded lug plate (44);
And step eight, checking the first oblique sizing block (7) to ensure the position fixation of the transverse inserted steel pipe (8).
5. The construction method according to claim 4, characterized in that a first oblique sizing block (7) is arranged between the transverse embedded steel pipe (11) and the transverse inserted steel pipe (8); a first oblique sizing block (7) is arranged in the longitudinal embedded steel pipe (12) and the longitudinal inserted steel pipe (9).
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| CN112482795A (en) * | 2020-10-30 | 2021-03-12 | 上海建工二建集团有限公司 | Supporting structure of prefabricated concrete structure and construction method |
| CN114909011B (en) * | 2022-05-11 | 2024-06-11 | 重庆大学 | Replaceable assembled beam column node free of floor damage |
| CN115110632B (en) * | 2022-08-10 | 2023-05-12 | 福建江夏学院 | Self-resetting assembled concrete beam column energy consumption node and construction method |
| CN117188607B (en) * | 2023-11-07 | 2024-01-30 | 江苏悦成新型建材有限公司 | Multifunctional prefabricated part and assembly method |
| CN117605148B (en) * | 2024-01-22 | 2024-04-30 | 成都中品建设工程有限公司 | Green building and construction method thereof |
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