CN109025067A - T section acra outsourcing channel steel concrete combined special-shaped column and its construction method - Google Patents
T section acra outsourcing channel steel concrete combined special-shaped column and its construction method Download PDFInfo
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- CN109025067A CN109025067A CN201811128338.XA CN201811128338A CN109025067A CN 109025067 A CN109025067 A CN 109025067A CN 201811128338 A CN201811128338 A CN 201811128338A CN 109025067 A CN109025067 A CN 109025067A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 87
- 239000010959 steel Substances 0.000 title claims abstract description 87
- 239000004567 concrete Substances 0.000 title claims abstract description 81
- 238000012946 outsourcing Methods 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 title claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 140
- 229910052742 iron Inorganic materials 0.000 claims abstract description 70
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000002787 reinforcement Effects 0.000 claims abstract description 29
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000013461 design Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 14
- 239000011150 reinforced concrete Substances 0.000 abstract description 11
- 238000005266 casting Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 description 14
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 4
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- 238000012360 testing method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
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- 238000005345 coagulation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
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- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
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- Engineering & Computer Science (AREA)
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Abstract
The invention 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 effectively 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 present invention relates to a kind of building engineering field, especially a kind of T section acra outsourcing channel steel concrete combination is different
Shape column and its construction method.
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, cannot be using being higher than 12 layers of building, poor seismic behavior, Bu Nengyong
In higher than 8 degree of earthquake territories.
(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
Steel skeleton also interfere vibration island 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, the present invention provides one kind and can improve special-shaped column structure performance to be conducive to apply again
The new structure type and method of work, it is intended that solve defect of the existing technology.
Summary of the invention
The invention discloses a kind of T section acra outsourcing channel steel concrete combined special-shaped column and its construction method, applications
Channel steel is wrapped on the outside of Special-Shaped Column acra by steel-concrete combined structure Special-Shaped Column, and 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；On realizing
Purpose is stated, the technical solution of the present invention is 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 the T-type 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 maintenance 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 flute 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 enclose at T-shaped periphery, the rectangle template and template jointly
Between be connected and fixed with iron wire.
Related description of the invention, flute profile fashioned iron are combined with concrete profiled pile or beam bottom portion by Shear connection key connection
Stress, this structure and steel reinforced concrete special-shaped columns have apparent difference in appearance in form, and fashioned iron is only arranged in column acra, and
It is not obviously to be divided into steel construction and concrete structure on section in Transducers Embedded in Concrete, and there is no steel reinforced concrete special-shaped columns knot
Structure is such to lead to the crowded brought constructional difficulties problem in space due to internal embedding fashioned iron, meanwhile, fashioned iron is arranged in different
The acra of shape column can reinforce the stress of acra well, so that it will not as shaped rc columns under geological process
It is destroyed first in outlimb.This programme effectively increases bearing capacity and anti-seismic performance compared with armored concrete；With fashioned iron coagulation
Soil is compared, and solves the problem of crowded inside the node location of beam column junction, constructional difficulties.
The invention has the benefit that
(1) Special-Shaped Column of the present invention is that channel steel is wrapped in Special-Shaped Column acra by steel-concrete combined structure Special-Shaped Column
Outside, channel steel are connected with concrete by Welded-Stud Conectors, will not cause inside concrete because channel steel is embedded in inside concrete
The problem of reinforcing bar is crowded, insufficient space；Channel steel be in concrete outside simultaneously, will not interfere passing through for reinforcing bar at bean column node；
(2) for Special-Shaped Column of the present invention convenient for construction, the steel skeleton for effectively solving steel reinforced concrete special-shaped columns is more complex
And the problem for causing construction inconvenient, save construction time and cost；Steel concrete deformed pile structure anti-seismic performance is effectively improved,
Effectively improve steel concrete deformed pile structure bearing capacity；T section acra outsourcing channel steel concrete combines under identical axial compression ratio
Special-Shaped Column (hereinafter referred to as SCC T shape column) negative peak load improves 180-190% compared with RC T shape column.
(3) Special-Shaped Column of the invention energy consumption and ductility improve bright compared with normal concrete Special-Shaped Column (hereinafter referred to as RCT shape column)
Aobvious, SCC T shape column hysteresis loop is full, and equivalent viscous ratio RC T shape column is big, and energy-dissipating property is good；Identical axial compression ratio
Lower RC T shape column forward direction ductility factor is 2.5-3, and SCC T shape column forward direction ductility factor reaches 4-4.5, mentions respectively compared with RC T shape column
High 40-50%, ductile performance are 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 level
Shi Zhengxiang rigidity improves 25-30% on the basis of RC-T1, and third, which recycles positive bearing capacity, reduces the 2- that coefficient is RC T shape column
2.5 times, and curve decline is gentle, shows good anti-strength deterioration, Stiffness Deterioration ability.
(5) Special-Shaped Column working procedure of the present invention is relatively simple, the reinforcing bar of reinforcing bar binding and ordinary reinforced concrete Special-Shaped Column
Binding difficulty is identical, and outsourcing channel steel can be pre-fabricated, assembled at the scene；And it is hindered 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 present invention casting concrete；
Fig. 3 is construction method flowage structure schematic diagram of the present invention；
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
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, referring to the drawings and preferred reality is enumerated
Example is applied, the present invention is described in more detail.However, it is necessary to illustrate, many details listed in specification are only to be
Reader is set to have a thorough explanation to one or more aspects of the present invention, it can also be with even without these specific details
Realize the aspects of the invention.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "left", "right", level "
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, be merely for convenience of the description present invention and
Simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construction
And operation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term 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 be spiral shell
It tethers and connects, be also possible to be welded to connect；It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood at this as the case may be
Concrete meaning in invention.
Below in conjunction with attached drawing, invention is further described in detail, but not as a limitation of the invention.
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-type 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 maintenance 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, by under T shape Special-Shaped Column when welding
Mutual spacing is less than the spacing of top Welded-Stud Conectors 200 between any two to the Welded-Stud Conectors 200 of portion encrypted area two-by-two
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 install rectangle template 600, i.e. rectangle template 600 and three flute profile fashioned iron 100 encloses at T-shaped periphery jointly, described
It is connected and fixed between rectangle template 600 and template 600 with iron wire.
1 reinforced concrete T tee section Special-Shaped Column (abbreviation RC T shape column), 3 cast-type T have been made by experiment
Outside tee section acra outsourcing channel steel concrete combined special-shaped column (abbreviation SCC T shape column) and 2 prefabricated assembled T section acras
Packet slot steel concrete combined special-shaped column (abbreviation PSCC T shape column), and carry out Low-cycle Test, study its bearing capacity,
The anti-seismic performances such as ductility, energy consumption, Stiffness Deterioration show that Main Conclusions is as follows:
(1) SCC T shape column acra outsourcing channel steel plays a very good protection to its acra weakness, and suspension column finally destroys
Situation is light compared with RC T shape column, and concrete surface crushing external drum is then peeled off when destruction, and channel steel is bright to acra concrete effect of contraction
It is aobvious, there is not the completely peeled off situation of RC T shape column web edge concrete, bearing capacity improves a lot compared with RC T shape column, phase
180-190% is improved compared with RC T shape column with SCC T shape column negative peak load under axial compression ratio.
(2) web and the edge of a wing this shaped-steel layout of outsourcing channel steel substantially improve the mechanical characteristic of T section column, so that its
Positive negative sense bearing capacity asymmetry situation has larger improvement.Positive negative sense ultimate bearing capacity is not much different, and hysteresis loop, skeleton are bent
Line, strength deterioration and Stiffness Deterioration curve are compared with RC T shape column symmetry.
(3) energy consumption of SCC T shape column and ductility are obviously improved compared with RC T shape column.SCC T shape column hysteresis loop is full, equivalent viscous
Stagnant damped coefficient ratio RC T shape column is big, and energy-dissipating property is good；RC T shape column forward direction ductility factor is 2.5-3 under identical axial compression ratio,
SCC T shape column forward direction ductility factor reaches 4-4.5,40-50% has been respectively increased compared with RC T shape column, ductile performance is good.
(4) it is good compared with RC T shape column to resist strength deterioration, Stiffness Deterioration ability for SCC T shape column.The SCC under identical axial compression ratio
It is substantially bigger than RC T shape column that T shape columns bearing capacity reduces coefficient, average loop wire conversion rigidity, forward direction rigidity when last displacement level
25-30% is improved on the basis of RC-T1, third, which recycles positive bearing capacity, reduces 2-2.5 times that coefficient is RC T shape column, and bent
Line decline is gentle, shows good anti-strength deterioration, Stiffness Deterioration ability.
(5) in the case of identical steel ratio, axial compression ratio is bigger, and T section acra outsourcing channel steel concrete combined special-shaped column is bent
Take that load is higher, the energy dissipation capacity of single hysteretic loop also becomes larger, but ductility is deteriorated, and strength deterioration, Stiffness Deterioration become faster.
(6) increase steel ratio, the seismic bearing capacity of test specimen is obviously improved.Such as when axial compression ratio is identical, SCC-T3 is being bent
28.9%-32.9%, 17.8%-21.8% has been respectively increased compared with SCC-T2 shape column with peak point average load in clothes point.
(7) PSCC T shape column has good anti-seismic performance as SCC T shape column.Ultimate bearing capacity and SCC T shape column
Substantially quite, average load value difference is no more than 5%-7%, ductility, energy consumption, Stiffness Deterioration, bearing capacity at yield point, peak point
Every anti-seismic performance index ratio SCC T shape column such as degenerate is slightly poor, and sign is not destroyed in suspension column pre-erection junction when destruction, says
Bright such PSCC T shape column is feasible.
(8) RC T shape column, SCC T shape column and PSCC T shape column substantially conform to plane cross-section assumption in the power control stage, and web is mixed
Solidifying soil, reinforcing bar and channel steel measuring point strain variation are more synchronous, show that power control stage channel steel and concrete collaborative work ability are preferable.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
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 the T-type 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.
7. the construction party of T section acra outsourcing channel steel concrete combined special-shaped column according to claim 1-6
Method, it is characterised in that:
The following steps are included:
(1) assembling reinforcement bone:
It is bent into several rectangles after being segmented stirrup by design requirement, and at T-shaped is two-by-two staggeredly inserted in preparatory arrangement in order
On good longitudinal reinforcement；
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 the bottom of in
On seat；
(5) concrete blinding is set up by the requirement of T shape Special-Shaped Column；
(6) be poured concrete formation, removed after maintenance template become for T section acra outsourcing channel steel concrete it is combined special-shaped
Column.
8. the construction method of combined special-shaped column according to claim 7, it is characterised in that:
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.
9. the construction method of combined special-shaped column according to claim 7, it is characterised in that:
Welded-Stud Conectors in the step (3) and flute profile fashioned iron weld, by the peg of the shape Special-Shaped Column lower part T encrypted area when welding
Mutual spacing is less than the spacing welding of top Welded-Stud Conectors between any two to connector two-by-two.
10. the construction method of combined special-shaped column according to claim 7, it is characterised in that:
Erection template in the step (5) is the installation rectangle template between the adjacent flute profile section steel edge on T steel skeleton
, i.e. rectangle template and three flute profile fashioned iron enclose at T-shaped periphery jointly, use iron wire between the rectangle template and template
It is connected and fixed.
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| CN201811128338.XA CN109025067A (en) | 2018-09-27 | 2018-09-27 | T section acra outsourcing channel steel concrete combined special-shaped column and its construction method |
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| CN201811128338.XA CN109025067A (en) | 2018-09-27 | 2018-09-27 | T section acra outsourcing channel steel concrete combined special-shaped column and its construction method |
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|---|---|---|---|---|
| CN1970956A (en) * | 2006-12-05 | 2007-05-30 | 西安建筑科技大学 | T-shape steel concrete profiled pole with pen-web framework of T-shape steel |
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| CN209129266U (en) * | 2018-09-27 | 2019-07-19 | 广西大学 | T section acra outsourcing channel steel concrete combined special-shaped column |
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|---|---|---|---|---|
| CN1970956A (en) * | 2006-12-05 | 2007-05-30 | 西安建筑科技大学 | T-shape steel concrete profiled pole with pen-web framework of T-shape steel |
| CN1970959A (en) * | 2006-12-05 | 2007-05-30 | 西安建筑科技大学 | T-shape steel concrete profiled pole with pen-web channel beam framework |
| CN103835439A (en) * | 2014-03-21 | 2014-06-04 | 北京工业大学 | Wire-mesh-coated cement mortar plate-concrete combined bearing T-shaped column and preparation method thereof |
| CN209129266U (en) * | 2018-09-27 | 2019-07-19 | 广西大学 | T section acra outsourcing channel steel concrete combined special-shaped column |
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Application publication date: 20181218 |