CN209129266U - T section acra outsourcing channel steel concrete combined special-shaped column - Google Patents
T section acra outsourcing channel steel concrete combined special-shaped column Download PDFInfo
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- CN209129266U CN209129266U CN201821576931.6U CN201821576931U CN209129266U CN 209129266 U CN209129266 U CN 209129266U CN 201821576931 U CN201821576931 U CN 201821576931U CN 209129266 U CN209129266 U CN 209129266U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 124
- 229910052742 iron Inorganic materials 0.000 claims abstract description 62
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Abstract
The utility model discloses a kind of T section acra outsourcing channel steel concrete combined special-shaped column, the Special-Shaped Column includes pedestal and the T shape Special-Shaped Column being vertically mounted on pedestal；It is evenly distributed with several parallel reinforcing bars in longitudinal direction and several lateral T u stirrups of circle in the T shape Special-Shaped Column and is cast with concrete；Three acras are respectively arranged flute profile fashioned iron, and the flute profile fashioned iron covers outside three acras, and for the recess of the flute profile fashioned iron towards T shape Special-Shaped Column center, construction method includes: assembling reinforcement bone → be assembled into combination T steel skeleton → erection template → moulding by casting；Channel steel is wrapped on the outside of Special-Shaped Column acra by the application using steel-concrete combined structure Special-Shaped Column, the problem of crowded internal reinforcing bar caused by inside concrete, insufficient space will not be embedded in because of channel steel, it solves the problems, such as that the steel skeleton of steel reinforced concrete special-shaped columns is more complex and causes construction inconvenient, saves construction time and cost；Effectively improve ordinary reinforced concrete special-shaped column structure anti-seismic performance.
Description
Technical field
The utility model relates to a kind of building engineering field, especially a kind of T section acra outsourcing channel steel concrete group
Close Special-Shaped Column.
Background technique
Special-Shaped Column refers to that column section is L shape, T shape, cross, and the ratio between section height and limb thickness are less than or equal to 4 column.Abnormity
The limb thickness of column is usually consistent with wall thickness, avoids pillar protrusion wall, so that building interior is both beautiful, while also being increased indirectly
The big use space in room, therefore, Special-Shaped Column is in building using possessing irreplaceable superiority in function, it is easy to by
The popular welcome of user and developer, thus be used widely in practical projects.
But due to the scrambling of existing special-shaped column section, stress is unreasonable, and limb thickness is smaller, makes it in geological process
Under first acra foot destroy, and then cause pillar integrally destroy quickly, anti-seismic performance is generally not so good as rectangular section column.
In order to optimize special-shaped column structure performance further, expand application range, many scholars have carried out a large amount of examination
It tests and theoretical research, proposes some new structure types and construction method, such as steel reinforced concrete special-shaped columns, concrete filled steel tube
Special-Shaped Column etc.；Although these new structure situations can solve the problems, such as that Special-Shaped Column anti-seismic performance is insufficient to a certain extent, same
When also bring the problem of construction space deficiency, thick to limb general only the house fashioned iron or steel pipe concrete profiled pile of 200mm
Structure, should have fashioned iron or steel pipe to pass through at node, have the longitudinal reinforcement of beam column to cross through again, be unthinkable gather around
It squeezes, or even is difficult to implement in practical projects.
The defect of production Special-Shaped Column and its construction method commonly used in the prior art is:
(1) reinforcing bar is bound at T-shaped or other shapes by the shape of Special-Shaped Column by ordinary reinforced concrete Special-Shaped Column, fixed
In design position, then there is reinforcing bar to pass through in concrete, concreting is more convenient, since limb thickness is relatively thin, one when destruction
As be crushed first in the concrete of acra, bearing capacity is lower, not above 12 layers, poor seismic behavior, it is impossible to be used in be higher than 8 degree
Earthquake territory.
(2) steel reinforced concrete special-shaped columns, i.e., in the embedding fashioned iron of inside concrete, such form structure is complex, in addition
Special-Shaped Column inner space folder is small, especially more crowded inside the node location of beam column junction, brings difficulty to construction, constructs
When cross-sectional internal fashioned iron hinder the vibration compacting of concrete, in the embedding fashioned iron of inside concrete, concrete is wrapped up around fashioned iron, type
Steel is not exposed, there is abdomen formula and an open web type, and fashioned iron not connectors such as weld stud, bearing capacity is larger, good seismic performance, but due to
Inside has fashioned iron to pass through, it obstructs the binding of reinforcing bar again passes through the reinforcing bar for hindering beam in the fashioned iron of beam column infall column.When cut
When face is smaller, it is likely to result in the disadvantage of thickness of concrete cover deficiency, simultaneously as the section of Special-Shaped Column is complicated, accordingly
The island steel skeleton Ye Tuzhen device insertion, the vibration island for being unfavorable for concrete is closely knit, is unfavorable for the guarantee of construction quality.
(3) steel pipe concrete profiled pile is disposed with steel pipe in shaped rc columns, interior fill concrete, between steel pipe
It is connected with component, working procedure is more, and difficulty is big, and anti-seismic performance is good, and bearing capacity is high, and hindering for steel pipe makes beam column infall reinforcing bar
It is not easy across taking complicated measure.It is generally unsuitable for the lesser special-shaped column structure of house cross-section, is only applicable to large size
Special-Shaped Column.
Patent No. 201721687444.2, the earlier application of entitled steel pipe concrete profiled pile, main technical point
It is muti-piece reinforcement welding in periphery, although solving the advantage of traditional Special-Shaped Column anti-seismic performance deficiency to a certain extent, its
There is also shortcomings, the Special-Shaped Column of mainly pure encased steel plate is in actual use process and work progress by very big limit
System, firstly, secondly, leak be easy to cause steel plate to get rusty, appearance is influenced by large area using being not easy to plaster in house；Most
Afterwards, the steel plate of outsourcing needs plurality of steel plates to carry out welding fabrication, and the very complicated complexity of workload greatly improves in practical applications
Construction cost；Patent No. 201611266329.8, patent name are the earlier application of L shape aluminium alloy concrete profiled pile,
Its technical point is also metal outsourcing, other than disadvantage mentioned above, the outer surface in this application not in the same plane,
Practice of construction process also needs in addition to plaster for groove, further increases work difficulty.
For disadvantage of the existing technology, it is again advantageous that the utility model provides a kind of technical ability improvement special-shaped column structure performance
In the new structure type and method of construction, it is intended that solve defect of the existing technology.
Utility model content
The utility model discloses a kind of T section acra outsourcing channel steel concrete combined special-shaped column and its construction method,
Channel steel is embedded on the outside of Special-Shaped Column acra using steel-concrete combined structure Special-Shaped Column, channel steel and concrete pass through nail solder
Fitting be connected, will not because channel steel is embedded in inside concrete cause crowded inside concrete reinforcing bar, insufficient space the problems such as；For reality
Existing above-mentioned purpose, the technical solution of the utility model are as follows:
A kind of T section acra outsourcing channel steel concrete combined special-shaped column, the T section acra outsourcing channel steel concrete
Combined special-shaped column includes pedestal and the T shape Special-Shaped Column being vertically mounted on pedestal；It is characterized by:
The T shape Special-Shaped Column forms three acras, and three acras are respectively disposed with flute profile fashioned iron, the flute profile fashioned iron
It covers outside three acras, the recess of the flute profile fashioned iron is towards T shape Special-Shaped Column center, and the flute profile fashioned iron hollow back is to exposing to T
Outside three acras of shape Special-Shaped Column；
The flute profile fashioned iron width is identical as the T shape Special-Shaped Column concrete acra.
Preferably, flute profile fashioned iron concave surface is welded with several Welded-Stud Conectors, the Welded-Stud Conectors and flute profile type
Steel vertical welding, the Welded-Stud Conectors are embedded in the concrete, and the Welded-Stud Conectors include integrally formed connecting rod
With the peg head in connecting rod one end, the connecting rod other end is vertically welded in the recess of flute profile fashioned iron, the peg head
Vertical section it is bigger than the vertical section of connecting rod.
Preferably, the T shape Special-Shaped Column includes the T u stirrup of built-in longitudinal reinforcement and transverse direction, the Welded-Stud Conectors
It does not in the same plane avoid constructing crowded with T u stirrup lateral alternate.
Preferably, the pedestal is T-shaped structure, and the pedestal section is greater than T shape Special-Shaped Column upright projection section；
Multiple preformed holes are provided on the pedestal, the positioning for longitudinal reinforcement.
Preferably, the T shape Special-Shaped Column is divided into upper and lower part lateral tie encrypted area, under the flute profile fashioned iron of the outsourcing
Portion be located at T shape Special-Shaped Column encrypted area the adjacent spacing between any two of Welded-Stud Conectors be less than top Welded-Stud Conectors it is adjacent two-by-two it
Between spacing.
Preferably, the Welded-Stud Conectors length is 8-15cm, and the peg head is provided in round ferrule or cross
The steel bar piece of interconnection.
The construction method of the T section acra outsourcing channel steel concrete combined special-shaped column, it is characterised in that:
The following steps are included:
(1) assembling reinforcement bone:
Several rectangles are bent into after being segmented stirrup by design requirement, and two-by-two it is at T-shaped staggeredly be inserted in order in advance
On the longitudinal reinforcement arranged；
Then several vertical reinforcements and several circle transverse direction T u stirrups are bound at T-shaped reinforcement cage skeleton；
(2) flute profile fashioned iron, Welded-Stud Conectors and production pedestal are customized；
(3) flute profile fashioned iron and Welded-Stud Conectors weld: Welded-Stud Conectors are pressed default spacing vertical welding in flute profile fashioned iron
Concave surface center；
(4) pedestal, flute profile fashioned iron are assembled into reinforcement cage skeleton and combine T steel skeleton and by flute profile fashioned iron vertical welding
In on pedestal；
(5) concrete blinding is set up by the requirement of T shape Special-Shaped Column；
(6) be poured concrete formation, removed after drying template become for T section acra outsourcing channel steel concrete combine it is different
Shape column.
Preferably, the pedestal production in the step (2), the pedestal are designed as T shape, and the pedestal T section is greater than
The T shape abnormity column section；The base upper surface is preset with multiple preformed holes for positioning longitudinal reinforcement.
Preferably, the Welded-Stud Conectors in the step (3) and groove profile fashioned iron weld, and when welding presses T shape Special-Shaped Column lower part
Mutual spacing is less than the spacing welding of top Welded-Stud Conectors between any two to the Welded-Stud Conectors of encrypted area two-by-two；
Preferably, the erection template in the step (5) is installed between the adjacent flute profile section steel edge on T steel skeleton
Rectangle template, i.e. rectangle template and three flute profile fashioned iron are encircled a city T shape periphery, the rectangle template and template jointly
Between be connected and fixed with iron wire.
The related description of the utility model, flute profile fashioned iron and concrete profiled pile or beam bottom portion are keyed by Shear connection
Combination stressed, this structure and steel reinforced concrete special-shaped columns have apparent difference in appearance in form, and fashioned iron is only arranged in column limb
End, rather than in Transducers Embedded in Concrete, steel construction and concrete structure are obviously divided on section, and without steel reinforced concrete abnormity
Rod structure is such to lead to the crowded brought constructional difficulties problem in space due to internal embedding fashioned iron, meanwhile, fashioned iron arrangement
In the acra of Special-Shaped Column, the stress of acra can be reinforced well, so that it will not make as shaped rc columns in earthquake
It is destroyed first in outlimb under.This programme effectively increases bearing capacity and anti-seismic performance compared with armored concrete；With fashioned iron
Concrete is compared, and solves the problem of crowded inside the node location of beam column junction, constructional difficulties.
The utility model has the following beneficial effects:
(1) Special-Shaped Column described in the utility model is that channel steel is embedded in Special-Shaped Column by steel-concrete combined structure Special-Shaped Column
On the outside of acra, channel steel is connected with concrete by nail solder fitting, will not cause concrete because channel steel is embedded in inside concrete
The problem of internal reinforcing bar is crowded, insufficient space；Channel steel be in concrete outside simultaneously, will not interfere wearing for reinforcing bar at bean column node
It crosses；
(2) Special-Shaped Column described in the utility model convenient for construction, effectively solve steel reinforced concrete special-shaped columns steel skeleton compared with
Problem that is complicated and causing construction inconvenience, saves construction time and cost；Effectively improve steel concrete deformed pile structure antidetonation
Performance effectively improves steel concrete deformed pile structure bearing capacity；T section acra outsourcing channel steel concrete under identical axial compression ratio
Combined special-shaped column (hereinafter referred to as SCC T shape column) negative peak load improves 180-190% compared with RC T shape column.
(3) the Special-Shaped Column energy consumption of the utility model and ductility are mentioned compared with normal concrete Special-Shaped Column (hereinafter referred to as RCT shape column)
High obvious, SCC T shape column hysteresis loop is full, and equivalent viscous ratio RC T shape column is big, and energy-dissipating property is good；Same axis
RC T shape column forward direction ductility factor is 2.5-3 under pressure ratio, and SCC T shape column forward direction ductility factor reaches 4-4.5, compared with RC T shape column
40-50% is respectively increased, ductile performance is good.
(4) SCC T shape column resistance strength deterioration, Stiffness Deterioration ability are good compared with RC T shape column in the application.In same axis
SCC T shape columns bearing capacity reduction coefficient, average loop wire conversion rigidity are substantially bigger than RC T shape column under pressure ratio, last displacement
Forward direction rigidity improves 25-30% on the basis of RC-T1 when grade, and it is RC T shape column that third, which recycles positive bearing capacity and reduces coefficient,
2-2.5 times, and curve decline is gentle, shows good anti-strength deterioration, Stiffness Deterioration ability.
(5) the utility model Special-Shaped Column working procedure is relatively simple, reinforcing bar binding and ordinary reinforced concrete Special-Shaped Column
Reinforcing bar binding difficulty is identical, and outsourcing channel steel can be pre-fabricated, assembled at the scene；And in beam column infall without extra Steel material
Hinder, there is no reinforcing bar be not easy across the problem of.
(6) flute profile fashioned iron is respectively arranged in three acras of the concrete profiled pile of T section, the recess of channel steel is towards coagulation
Native acra, covers on acra, and channel steel hollow back is to exposing to outside concrete；Good appearance, compared with ordinary reinforced concrete column more
Firm, acra has channel steel protection, and anti-seismic performance is greatly improved.
Detailed description of the invention
Fig. 1 is flute profile fashioned iron schematic diagram；
Fig. 2 is the Special-Shaped Column fractionation structural representation of the utility model casting concrete；
Fig. 3 is the utility model construction method flowage structure schematic diagram；
In figure, flute profile fashioned iron 100, Welded-Stud Conectors 200, T u stirrup 300, rectangle 301, longitudinal reinforcement 400, pedestal
500, template 600.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, referring to the drawings and enumerate excellent
Embodiment is selected, the utility model is further described.However, it is necessary to illustrate, many details listed in specification
It is specific even without these just for the sake of making reader have a thorough explanation to the one or more aspects of the utility model
Details also may be implemented the utility model these aspect.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as level " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally
Utility model and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be to be bolted, it is also possible to be welded to connect；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in the present invention.
The utility model is described in further detail below in conjunction with attached drawing, but not as the restriction to the utility model.
Embodiment 1
In conjunction with shown in Fig. 1-Fig. 3,
A kind of T section acra outsourcing channel steel concrete combined special-shaped column, the T section acra outsourcing channel steel concrete
Combined special-shaped column includes pedestal 500 and the T shape Special-Shaped Column being vertically mounted on pedestal 500；It is characterized by:
In conjunction with shown in Fig. 1-2；The T shape Special-Shaped Column forms three acras, and three acras are respectively disposed with flute profile type
Steel 100,100 sets of the flute profile fashioned iron outside three acras, the recess of the flute profile fashioned iron 100 is towards T shape Special-Shaped Column center, institute
100 hollow back of flute profile fashioned iron is stated to exposing to outside three acras of T shape Special-Shaped Column；
The T of several parallel longitudinal reinforcements in longitudinal direction 400 and several circle transverse directions is evenly distributed in the T shape Special-Shaped Column
U stirrup 300 is simultaneously cast with concrete；
100 width of flute profile fashioned iron is identical as the T shape Special-Shaped Column concrete acra.
Preferably, 100 concave surface of flute profile fashioned iron is welded with several Welded-Stud Conectors 200, the Welded-Stud Conectors 200
With 100 vertical welding of flute profile fashioned iron, the Welded-Stud Conectors 200 are embedded in the concrete, and the Welded-Stud Conectors include one
The connecting rod that body shapes and the peg head in connecting rod one end, the connecting rod other end are vertically welded in the recess of flute profile fashioned iron
Interior, the vertical section of the peg head is bigger than the vertical section of connecting rod.Peg head use and setting increases and concrete
Cohesive force so that Special-Shaped Column overall structure is more firm.
Preferably, the T shape Special-Shaped Column includes the T u stirrup 300 of built-in longitudinal reinforcement 400 and transverse direction, the peg
Connector 200 and 300 lateral alternate of T u stirrup are not in the same plane avoided constructing crowded, are arranged in a staggered manner and avoid inside
It constructs crowded and increases the integrally-built cohesive force of Special-Shaped Column.
Preferably, the pedestal 500 is T-shaped structure, and 500 section of pedestal is greater than the T shape Special-Shaped Column and vertically throws
Shadow section；Multiple preformed holes are provided on the pedestal 500, the positioning for longitudinal reinforcement 400.
Preferably, the T shape Special-Shaped Column is divided into upper and lower part lateral tie encrypted area, the flute profile fashioned iron of the outsourcing
The adjacent spacing between any two of Welded-Stud Conectors 200 that 100 lower parts are located at T shape Special-Shaped Column encrypted area is less than top Welded-Stud Conectors
200 adjacent spacing between any two, this setting are since special-shaped column bottom bearing capacity is greater than top in practical applications, therefore this is different
Shape column protects the stability of whole pillar entirety according to reinforced region is actually also equipped with.
Preferably, 200 length of Welded-Stud Conectors is 8-15cm, and the peg head is provided in round ferrule or ten
The steel bar piece of word interconnection, the shape is preferred embodiment shape, but is not interfered to other shapes such as triangle or cone
The protection of shape and other shapes being more suitable for.
As shown in connection with fig. 3, the construction method of the T section acra outsourcing channel steel concrete combined special-shaped column, including
Following steps:
(1) assembling reinforcement bone:
Several rectangles 301 are bent into after being segmented stirrup by design requirement, and two-by-two it is at T-shaped staggeredly be inserted in order it is pre-
On the longitudinal reinforcement 400 first arranged；
Then several vertical reinforcements and several circle transverse direction T u stirrups 300 are bound at T-shaped reinforcement cage skeleton；
(2) flute profile fashioned iron 100, Welded-Stud Conectors 200 and production pedestal 500 are customized；
(3) flute profile fashioned iron 100 and Welded-Stud Conectors 200 weld: by Welded-Stud Conectors 200 press default spacing vertical welding in
100 concave surface center of flute profile fashioned iron；
(4) pedestal 500, flute profile fashioned iron 100 are assembled into reinforcement cage skeleton and combine T steel skeleton and by flute profile fashioned iron
100 vertical weldings are on pedestal 500；
(5) concrete blinding 600 is set up by the requirement of T shape Special-Shaped Column；
(6) it is poured concrete formation, template 600 is removed after drying and is become as T section acra outsourcing channel steel concrete group
Close Special-Shaped Column.
Preferably, the pedestal 500 in the step (2) makes, and the pedestal 500 is designed as T shape, the pedestal 500T shape
Section is greater than the T shape abnormity column section；500 upper surface of pedestal is preset with multiple preformed holes for positioning longitudinal reinforcement
400。
Preferably, the Welded-Stud Conectors 200 in the step (3) and groove profile fashioned iron weld, and when welding presses T shape Special-Shaped Column
The Welded-Stud Conectors 200 of lower part encrypted area are between mutual spacing is less than top Welded-Stud Conectors 200 between any two two-by-two
Away from welding；
Preferably, the erection template 600 in the step (5) be adjacent 100 side of flute profile fashioned iron on T steel skeleton it
Between rectangle template 600 is installed, i.e., besieged city T shape is peripheral jointly with three flute profile fashioned iron 100 for rectangle template 600, described
It is connected and fixed between rectangle template 600 and template 600 with iron wire.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, can also make several improvements and retouch, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of T section acra outsourcing channel steel concrete combined special-shaped column, the T section acra outsourcing channel steel concrete group
Closing Special-Shaped Column includes pedestal and the T shape Special-Shaped Column being vertically mounted on pedestal；It is characterized by:
The T shape Special-Shaped Column forms three acras, and three acras are respectively disposed with flute profile fashioned iron, and the flute profile fashioned iron covers
Outside three acras, for the recess of the flute profile fashioned iron towards T shape Special-Shaped Column center, the flute profile fashioned iron hollow back is different to T shape is exposed to
Outside three acras of shape column；
The flute profile fashioned iron width is identical as the T shape Special-Shaped Column concrete acra.
2. T section acra outsourcing channel steel concrete combined special-shaped column according to claim 1, it is characterised in that:
Flute profile fashioned iron concave surface is welded with several Welded-Stud Conectors, the Welded-Stud Conectors and flute profile fashioned iron vertical welding,
The Welded-Stud Conectors are embedded in the concrete, and the Welded-Stud Conectors include integrally formed connecting rod and in connecting rod one
The peg head at end, the connecting rod other end are vertically welded in the recess of flute profile fashioned iron, the vertical section ratio of the peg head
The vertical section of connecting rod is big.
3. T section acra outsourcing channel steel concrete combined special-shaped column according to claim 2, it is characterised in that:
The T shape Special-Shaped Column includes the T u stirrup of built-in longitudinal reinforcement and transverse direction, and the Welded-Stud Conectors and T u stirrup are lateral
It is staggered, not in the same plane.
4. T section acra outsourcing channel steel concrete combined special-shaped column according to claim 1, it is characterised in that:
The pedestal is T-shaped structure, and the pedestal section is greater than T shape Special-Shaped Column upright projection section；On the pedestal
Multiple preformed holes are provided with, the positioning for longitudinal reinforcement.
5. T section acra outsourcing channel steel concrete combined special-shaped column according to claim 2, it is characterised in that:
The T shape Special-Shaped Column is divided into upper and lower part lateral tie encrypted area, and it is different that the flute profile fashioned iron lower part of the outsourcing is located at T shape
The adjacent spacing between any two of the Welded-Stud Conectors of shape column encrypted area is less than the adjacent spacing between any two of top Welded-Stud Conectors.
6. T section acra outsourcing channel steel concrete combined special-shaped column according to claim 5, it is characterised in that:
The Welded-Stud Conectors length is 8-15cm, and the peg head is provided in round the steel of ferrule or right-angled intersection connection
Rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821576931.6U CN209129266U (en) | 2018-09-27 | 2018-09-27 | T section acra outsourcing channel steel concrete combined special-shaped column |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821576931.6U CN209129266U (en) | 2018-09-27 | 2018-09-27 | T section acra outsourcing channel steel concrete combined special-shaped column |
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| CN209129266U true CN209129266U (en) | 2019-07-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025067A (en) * | 2018-09-27 | 2018-12-18 | 广西大学 | T section acra outsourcing channel steel concrete combined special-shaped column and its construction method |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109025067A (en) * | 2018-09-27 | 2018-12-18 | 广西大学 | T section acra outsourcing channel steel concrete combined special-shaped column and its construction method |
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Granted publication date: 20190719 |