CN107989187A - A kind of prefabricated reinforced concrete column mechanically connects node and its construction method - Google Patents
A kind of prefabricated reinforced concrete column mechanically connects node and its construction method Download PDFInfo
- Publication number
- CN107989187A CN107989187A CN201810011110.6A CN201810011110A CN107989187A CN 107989187 A CN107989187 A CN 107989187A CN 201810011110 A CN201810011110 A CN 201810011110A CN 107989187 A CN107989187 A CN 107989187A
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- Prior art keywords
- node
- prop
- muscle
- upper prop
- lengthwise rib
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 21
- 238000010276 construction Methods 0.000 title claims abstract description 13
- 210000003205 muscle Anatomy 0.000 claims abstract description 55
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 230000002787 reinforcement Effects 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 239000011178 precast concrete Substances 0.000 claims abstract description 4
- 239000004567 concrete Substances 0.000 claims description 42
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims 2
- 230000015271 coagulation Effects 0.000 claims 1
- 238000005345 coagulation Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The present invention proposes a kind of prefabricated reinforced concrete column and mechanically connects node, for connecting the upper prop and lower prop of precast concrete column, including：Muscle and multiple positive and negative silk straight screw sleeves are indulged in a pair of of steel plate positioning cover die, multiple node reinforcement；Steel plate positioning cover die is separately positioned on the connecting end surface of upper prop and lower prop；The connection lengthwise rib for being longitudinally continuous extension and being stretched out to connecting end surface is equipped with upper prop and lower prop；The external part of connection lengthwise rib is each passed through the first circular hole；Muscle is indulged in the node reinforcement that the local extension in longitudinal direction is additionally provided with upper prop and lower prop and is stretched out to connecting end surface；Positive and negative silk straight screw sleeve is set in up and down between corresponding connection lengthwise rib and node reinforcement is indulged between muscle.The present invention solves the problems, such as that reinforcing bar positioning is difficult and node shearing resistance bending resistance weakens；The connection lengthwise rib for solving the problems, such as upper prop and lower prop at the same time can not rotate.The invention also discloses the construction method that a kind of reinforced column processed mechanically connects node.
Description
Technical field
The present invention relates to building, civil engineering technical field, and in particular to a kind of prefabricated reinforced concrete column mechanically connects
Node and its construction method.
Background technology
The processing of prefabricated reinforced concrete column connecting node is always a difficult point of assembly concrete frame structure, needs to solve
The problems such as certainly node bending resistance and shear resistance weaken, docking reinforcing bar is difficult to precise positioning.Existing prefabricated reinforced concrete column steel
The connection mode of muscle connects for slurry anchor overlap joint with grout sleeve, and most commonly used at present is grout sleeve connection.Grout sleeve connects
What is connect is of high cost, it is difficult to accurate positioning, and during practice of construction it is more difficult check grouting quality, and due to scene carelessness and caused by
Fault of construction will be left behind security risk.
The content of the invention
It is an object of the invention to provide a kind of prefabricated reinforced concrete column to mechanically connect node and its construction method, with solution
Certainly problems of the prior art.To achieve the above object, the technical solution adopted in the present invention is as follows：
A kind of prefabricated reinforced concrete column mechanically connects node, for connecting the upper prop and lower prop of precast concrete column, bag
Include：Muscle and multiple positive and negative silk straight screw sleeves are indulged in a pair of of steel plate positioning cover die, multiple node reinforcement；
Multiple first circular holes and the second circular hole are set on the steel plate positioning cover die；The steel plate positioning cover die is set respectively
In the upper prop and the connecting end surface of lower prop；
The connection lengthwise rib for being longitudinally continuous extension and being stretched out to the connecting end surface is equipped with the upper prop and lower prop；It is described
The external part of connection lengthwise rib is each passed through first circular hole；Be additionally provided with the upper prop and lower prop the local extension in longitudinal direction and to
Muscle is indulged in the node reinforcement that the connecting end surface stretches out；The external part that muscle is indulged in the node reinforcement passes through second circular hole；
The positive and negative silk straight screw sleeve is set in up and down between corresponding connection lengthwise rib and node reinforcement is indulged between muscle.
Preferably, the steel plate positioning cover die is " returning " shape；The outside of the steel plate positioning cover die is outer with the upper prop
Side is concordant.
Preferably, the node reinforcement is indulged muscle and is spaced apart with the connection lengthwise rib.
Preferably, cross-sectional area of the cross-sectional area less than the connection lengthwise rib of muscle is indulged in the node reinforcement.
Preferably, it is the positive and negative silk straight screw sleeve that muscle and the length of the external part of connection lengthwise rib are indulged in the node reinforcement
Length half.
Preferably, concrete tenon shape connector is further comprised；The concrete tenon shape connector is arranged on the company of the upper prop
It is on contact surface and downwardly projecting；The both ends of the surface of the concrete tenon shape connector institute with being arranged on the lower prop and lower prop respectively
State the minor diameter fit of steel plate positioning cover die.
Preferably, the side opposite tilt of the concrete tenon shape connector；The side and the angular range 45 of horizontal plane
~75 degree.
Preferably, the outer surface of the concrete tenon shape connector is rough surface.
A kind of prefabricated reinforced concrete column mechanically connects the construction method of node, comprises the following steps：
S1：Make steel plate positioning cover die, connection lengthwise rib and node reinforcement and indulge muscle, prepare positive and negative silk straight screw sleeve, by even
Connect vertical muscle, connection lengthwise rib and node reinforcement and indulge the termination of muscle and do rolling processing；
S2：In the fabrication of reinforcing cage of upper prop and lower prop, pre-embedded steel slab positioning cover die, connection lengthwise rib and node reinforcement are indulged
Muscle, makes connection lengthwise rib and node reinforcement is indulged muscle and is inserted in steel plate positioning cover die；Upper prop, lower prop difference casting concrete, upper prop are pre-
Concrete tenon shape connector is stayed, the rough surface of bumps is done in the outer surface of concrete tenon shape connector；
S3：Upper prop is lifted, the connection lengthwise rib of upper prop and lower prop is alignd respectively, positive and negative silk straight screw sleeve is distinguished into rotation set
The connection lengthwise rib and node reinforcement lived on column and lower prop indulge muscle, until it mutually holds out against respectively, the concrete tenon of upper prop at this time
Shape connector withstands the connecting end surface of lower prop；
S4：Adjust the verticality of upper prop and pour node concrete, node concrete uses slightly expanded concrete, intensity etc.
Level is than the upper and lower high level-one of shaft concrete grade.
Compared with prior art, the present invention solves reinforcing bar positioning hardly possible by steel plate positioning cover die and node shear resistance is cut
The problem of weak；Muscle is indulged by node reinforcement and solves the problems, such as that node bending resistance weakens；Pass through positive and negative silk straight screw sleeve solution
The problem of connection lengthwise rib of upper prop and lower prop of having determined can not rotate；Solves vertical construction loads by concrete tenon shape connector
Problem.In addition, the present invention is safe and reliable, process is simple, and financial cost is low, and speed of application is fast.
Brief description of the drawings
Fig. 1 is that the reinforced column processed of one embodiment of the invention mechanically connects the first structure schematic diagram of node；
Fig. 2 is that the reinforced column processed of one embodiment of the invention mechanically connects the second structure diagram of node；
Fig. 3 is that the reinforced column processed of one embodiment of the invention mechanically connects the profilograph of node；
Fig. 4 is the structure diagram that Fig. 1 light plates position cover die.
Wherein, 1- steel plates position cover die, the positive and negative silk straight screw sleeve of muscle, 3- is indulged in 2- node reinforcement, 4- concrete tenon shapes connect
Head.
Embodiment
The used technical solution of the present invention is further described below in conjunction with schematic diagram.
In the present embodiment, a kind of prefabricated reinforced concrete column mechanically connects node, for connecting precast concrete column
Upper prop and lower prop, including：Muscle 2 and multiple positive and negative silk straight screw sleeves 3 are indulged in a pair of of steel plate positioning cover die 1, multiple node reinforcement；Steel
Multiple first circular holes and the second circular hole are set on plate positioning cover die 1；Steel plate positioning cover die 1 is separately positioned on the company of upper prop and lower prop
Contact surface；The connection lengthwise rib for being longitudinally continuous extension and being stretched out to connecting end surface is equipped with upper prop and lower prop；Connection lengthwise rib is stretched
Outlet is each passed through the first circular hole；The node that the local extension in longitudinal direction is additionally provided with upper prop and lower prop and is stretched out to connecting end surface is mended
Vertical muscle 2 by force；The external part that muscle 2 is indulged in node reinforcement passes through the second circular hole；Positive and negative silk straight screw sleeve 3 is set in corresponding company up and down
Connect between vertical muscle and node reinforcement is indulged between muscle 2.The present invention takes into full account power transmission and the node of the connection lengthwise rib of upper prop and lower prop
Bending resistance shearing resistance reinforcement, by setting steel plate to position cover die 1, the vertical muscle 2 of node compensation and positive and negative silk braid cylinder, solve reinforcing bar and determine
The problem of position hardly possible, node bending resistance and shear resistance weaken.
With reference to Fig. 1~3, steel plate positioning cover die 1 is " returning " shape；The outside of steel plate positioning cover die 1 is concordant with the outside of upper prop.
The thickness of slab of steel plate positioning cover die 1 is 1~40mm, and hem width degree is 80~150mm.In the fabrication of reinforcing cage of upper prop and lower prop, steel
Plate positioning cover die 1 is installed on its both ends and holds out against the template of prefabricated post.The main function of steel plate positioning cover die 1 is precise positioning column
Vertical muscle, ensures that the vertical muscle 2 of connection lengthwise rib and node compensation of upper prop and lower prop aligns, and strengthens the shear resistance of node.At this
In other embodiment beyond embodiment, the steel plate positions 1 doughnut-shaped steel plate of cover die.
In the present embodiment, the vertical muscle 2 of node compensation is spaced apart with connection lengthwise rib.The cross section face of the vertical muscle 2 of node compensation
Cross-sectional area of the product less than connection lengthwise rib.Vertical anchor type of the muscle 2 in prefabricated post concrete of node compensation can be straight anchor
Or bent anchor or mechanical anchor, anchorage length are determined by design requirement.The section of the vertical muscle 2 of node compensation is definite according to calculating, generally
For the 10%~30% of section single side vertical rib area.Node reinforcement indulge the length of muscle 2 and the external part of connection lengthwise rib for it is described just
The half of the length of anti-silk straight screw sleeve 3.The main function of the vertical muscle 2 of node compensation is to indulging muscle section caused by rolling
The compensation of reduction.
In the present embodiment, the length of positive and negative silk straight screw sleeve 3 presses current specifications value.Positive and negative wire type straight screw sleeve
For I grades of sleeves, connection lengthwise rib and node compensation for connecting upper prop and lower prop indulge muscle 2 to transmit its axial tension or pressure
Power.In use, rotational sleeve is only needed to complete the connection that upper lower prop indulges muscle without Swiveling Rebar.
In the present embodiment, concrete tenon shape connector 4 is further comprised；On the connecting end surface of concrete tenon shape connector 4 and
It is downwardly projecting；The steel plate of the both ends of the surface of the concrete tenon shape connector 4 respectively with being arranged on the lower prop and lower prop is determined
The minor diameter fit of position cover die 1.The side opposite tilt of concrete tenon shape connector 4；Side and the angular range 45~75 of horizontal plane
Degree.The outer surface of concrete tenon shape connector 4 is rough surface.The main function of concrete tenon shape connector 4 is undertake upper prop vertical
Construction loads.
The invention also provides a kind of prefabricated reinforced concrete column mechanically connects the construction method of node, including following step
Suddenly：
S1：Make steel plate positioning cover die 1, connection lengthwise rib and node reinforcement and indulge muscle 2, prepare positive and negative silk straight screw sleeve 3, will
Do rolling processing in the termination that muscle 2 is indulged in connection lengthwise rib, connection lengthwise rib and node reinforcement；
S2：In the fabrication of reinforcing cage of upper prop and lower prop, pre-embedded steel slab positioning cover die 1, connection lengthwise rib and node reinforcement are indulged
Muscle 2, makes connection lengthwise rib and node reinforcement is indulged muscle 2 and is inserted in steel plate positioning cover die 1；Upper prop, lower prop difference casting concrete, upper prop
The rough surface of bumps is done in reserved concrete tenon shape connector 4, the outer surface of concrete tenon shape connector 4；
S3：Upper prop is lifted, the connection lengthwise rib of upper prop and lower prop is alignd respectively, positive and negative silk straight screw sleeve 3 is revolved respectively
Entangle the connection lengthwise rib on upper prop and lower prop and muscle 2 is indulged in node reinforcement, until it mutually holds out against respectively, the concrete of upper prop at this time
Tenon shape connector withstands the connecting end surface of lower prop；
S4：Adjust the verticality of upper prop and pour node concrete, node concrete uses slightly expanded concrete, intensity etc.
Level is than the upper and lower high level-one of shaft concrete grade.
Compared with prior art, the present invention positions cover die 1 by steel plate and solves reinforcing bar positioning hardly possible and node shear resistance
The problem of weakening；Vertical muscle 2 is compensated by node and solves the problems, such as that node bending resistance weakens；Pass through positive and negative silk straight screw sleeve
3 connection lengthwise ribs for solving the problems, such as upper prop and lower prop can not rotate；Solves vertical construction lotus by concrete tenon shape connector 4
The problem of load.In addition, the present invention is safe and reliable, process is simple, and financial cost is low, and speed of application is fast.
The preferred embodiment of the present invention is above are only, does not play the role of any restrictions to the present invention.Belonging to any
Those skilled in the art, in the range of technical scheme is not departed from, to the invention discloses technical solution and
Technology contents make the variation such as any type of equivalent substitution or modification, belong to the content without departing from technical scheme, still
Belong within protection scope of the present invention.
Claims (9)
1. a kind of prefabricated reinforced concrete column mechanically connects node, for connecting the upper prop and lower prop of precast concrete column, it is special
Sign is, including：Muscle and multiple positive and negative silk straight screw sleeves are indulged in a pair of of steel plate positioning cover die, multiple node reinforcement；
Multiple first circular holes and the second circular hole are set on the steel plate positioning cover die；The steel plate positioning cover die is separately positioned on institute
State the connecting end surface of upper prop and lower prop；
The connection lengthwise rib for being longitudinally continuous extension and being stretched out to the connecting end surface is equipped with the upper prop and lower prop；The connection
The external part of vertical muscle is each passed through first circular hole；The local extension in longitudinal direction is additionally provided with the upper prop and lower prop and to described
Muscle is indulged in the node reinforcement that connecting end surface stretches out；The external part that muscle is indulged in the node reinforcement passes through second circular hole；
The positive and negative silk straight screw sleeve is set in up and down between corresponding connection lengthwise rib and node reinforcement is indulged between muscle.
2. prefabricated reinforced concrete column according to claim 1 mechanically connects node, it is characterised in that the steel plate positioning
Cover die is " returning " shape；The outside of the steel plate positioning cover die is concordant with the outside of the upper prop.
3. prefabricated reinforced concrete column according to claim 1 mechanically connects node, it is characterised in that the node reinforcement
Vertical muscle is spaced apart with the connection lengthwise rib.
4. prefabricated reinforced concrete column according to claim 1 mechanically connects node, it is characterised in that the node reinforcement
The cross-sectional area of vertical muscle is less than the cross-sectional area of the connection lengthwise rib.
5. prefabricated reinforced concrete column according to claim 1 mechanically connects node, it is characterised in that the node reinforcement
The length of vertical muscle and the external part of connection lengthwise rib is the half of the length of the positive and negative silk straight screw sleeve.
6. prefabricated reinforced concrete column according to claim 2 mechanically connects node, it is characterised in that further comprises mixing
Solidifying soil tenon shape connector；The concrete tenon shape connector is arranged on the connecting end surface of the upper prop and downwardly projecting；The coagulation
The both ends of the surface of native tenon shape connector position the minor diameter fit of cover die with the steel plate being arranged on the lower prop and lower prop respectively.
7. prefabricated reinforced concrete column according to claim 6 mechanically connects node, it is characterised in that the concrete tenon
The side opposite tilt of shape connector；The side and 45~75 degree of the angular range of horizontal plane.
8. prefabricated reinforced concrete column according to claim 6 mechanically connects node, it is characterised in that the concrete tenon
The outer surface of shape connector is rough surface.
9. a kind of prefabricated reinforced concrete column mechanically connects the construction method of node, it is characterised in that used claim 1~
The prefabricated reinforced concrete column of 8 any one mechanically connects node, comprises the following steps：
S1：Make steel plate positioning cover die, connection lengthwise rib and the node reinforcement and indulge muscle, prepare the positive and negative silk straight screw sleeve,
Do rolling processing in the termination that the connection lengthwise rib, connection lengthwise rib and node reinforcement are indulged to muscle；
S2：In the fabrication of reinforcing cage of upper prop and lower prop, pre-buried steel plate positioning cover die, connection lengthwise rib and the node reinforcement are indulged
Muscle, makes the connection lengthwise rib and node reinforcement is indulged muscle and is inserted in the steel plate positioning cover die；The upper prop, lower prop pour mixed respectively
Solidifying soil, the upper prop reserve the concrete tenon shape connector, and the rough surface of bumps is done in the outer surface of the concrete tenon shape connector；
S3：The upper prop is lifted, the connection lengthwise rib of the upper prop and lower prop is alignd respectively, by the positive and negative silk straight screw sleeve
Connection lengthwise rib on upper prop and lower prop is stated in rotation set residence respectively and muscle is indulged in node reinforcement, until it mutually holds out against respectively, institute at this time
The concrete tenon shape connector for stating upper prop withstands the connecting end surface of lower prop；
S4：Adjust the verticality of the upper prop and pour node concrete, node concrete uses slightly expanded concrete, intensity etc.
Level is than the upper and lower high level-one of shaft concrete grade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011110.6A CN107989187B (en) | 2018-01-05 | 2018-01-05 | Mechanical connecting node of prefabricated reinforced concrete column and construction method of mechanical connecting node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011110.6A CN107989187B (en) | 2018-01-05 | 2018-01-05 | Mechanical connecting node of prefabricated reinforced concrete column and construction method of mechanical connecting node |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107989187A true CN107989187A (en) | 2018-05-04 |
| CN107989187B CN107989187B (en) | 2024-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810011110.6A Active CN107989187B (en) | 2018-01-05 | 2018-01-05 | Mechanical connecting node of prefabricated reinforced concrete column and construction method of mechanical connecting node |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024876A (en) * | 2018-09-07 | 2018-12-18 | 甘肃省第八建设集团有限责任公司 | A kind of connection method of prefabricated concrete structure component |
| CN109811882A (en) * | 2019-03-18 | 2019-05-28 | 重庆大学 | A kind of assembly node and assembly method of reinforced column |
| CN110005135A (en) * | 2019-04-30 | 2019-07-12 | 广东铝遊家科技有限公司 | Multi-layered modular house support column connection structure and connection method |
| CN110107024A (en) * | 2019-05-10 | 2019-08-09 | 中国十七冶集团有限公司 | A kind of rigid connection prefabricated frame trestle for assembled architecture |
| CN110820934A (en) * | 2019-11-01 | 2020-02-21 | 中南林业科技大学 | Fabricated concrete frame joint and construction method thereof |
| CN110924525A (en) * | 2019-11-13 | 2020-03-27 | 中国矿业大学 | Steel plate interface bolt connecting structure and method for reinforced concrete column and column |
| CN111075019A (en) * | 2020-01-03 | 2020-04-28 | 无锡北大建筑工程有限公司 | Assembly type steel structure integrated green building and design and installation process thereof |
| CN111851735A (en) * | 2020-07-13 | 2020-10-30 | 广东石油化工学院 | Vertical prefabricated structural part, prefabricating and forming method thereof and field assembly and construction method |
| CN112049330A (en) * | 2020-09-01 | 2020-12-08 | 广东博智林机器人有限公司 | Steel bar connecting mechanism and steel bar cage component |
| CN114775799A (en) * | 2022-05-25 | 2022-07-22 | 湖南科技大学 | Hoop type steel reinforced concrete beam column dry type node structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024876A (en) * | 2018-09-07 | 2018-12-18 | 甘肃省第八建设集团有限责任公司 | A kind of connection method of prefabricated concrete structure component |
| CN109811882A (en) * | 2019-03-18 | 2019-05-28 | 重庆大学 | A kind of assembly node and assembly method of reinforced column |
| CN110005135A (en) * | 2019-04-30 | 2019-07-12 | 广东铝遊家科技有限公司 | Multi-layered modular house support column connection structure and connection method |
| CN110107024A (en) * | 2019-05-10 | 2019-08-09 | 中国十七冶集团有限公司 | A kind of rigid connection prefabricated frame trestle for assembled architecture |
| CN110820934A (en) * | 2019-11-01 | 2020-02-21 | 中南林业科技大学 | Fabricated concrete frame joint and construction method thereof |
| CN110924525A (en) * | 2019-11-13 | 2020-03-27 | 中国矿业大学 | Steel plate interface bolt connecting structure and method for reinforced concrete column and column |
| CN111075019A (en) * | 2020-01-03 | 2020-04-28 | 无锡北大建筑工程有限公司 | Assembly type steel structure integrated green building and design and installation process thereof |
| CN111851735A (en) * | 2020-07-13 | 2020-10-30 | 广东石油化工学院 | Vertical prefabricated structural part, prefabricating and forming method thereof and field assembly and construction method |
| CN112049330A (en) * | 2020-09-01 | 2020-12-08 | 广东博智林机器人有限公司 | Steel bar connecting mechanism and steel bar cage component |
| CN114775799A (en) * | 2022-05-25 | 2022-07-22 | 湖南科技大学 | Hoop type steel reinforced concrete beam column dry type node structure |
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| CN107989187B (en) | 2024-01-09 |
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