CN104594186B - Using the enhanced concrete structure of circle FRP constraint concrete core - Google Patents
Using the enhanced concrete structure of circle FRP constraint concrete core Download PDFInfo
- Publication number
- CN104594186B CN104594186B CN201510039276.5A CN201510039276A CN104594186B CN 104594186 B CN104594186 B CN 104594186B CN 201510039276 A CN201510039276 A CN 201510039276A CN 104594186 B CN104594186 B CN 104594186B
- Authority
- CN
- China
- Prior art keywords
- concrete
- core
- circle
- frp
- constraint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 271
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 230000002787 reinforcement Effects 0.000 claims description 28
- 239000002689 soil Substances 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 4
- 210000003205 muscle Anatomy 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 17
- 230000008901 benefit Effects 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 9
- 238000011161 development Methods 0.000 abstract description 6
- 238000009417 prefabrication Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 15
- 238000007906 compression Methods 0.000 description 15
- 230000015271 coagulation Effects 0.000 description 6
- 238000005345 coagulation Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000004566 building material Substances 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 4
- 230000008929 regeneration Effects 0.000 description 4
- 238000011069 regeneration method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 239000003518 caustics Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 235000007926 Craterellus fallax Nutrition 0.000 description 1
- 240000007175 Datura inoxia Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 239000012761 high-performance material Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/264—Concrete reinforced with glass fibres
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses one kind using the enhanced concrete structure of circle FRP constraint concrete core, including：Outer concrete and at least one circle FRP constraint concrete core, each circle FRP constraint concrete core include：Circle FRP pipes and core concrete, the cross section of circle FRP pipes is formed as circular, outer concrete is cast on the outer surface of round FRP pipes, the fiber winding direction of circle FRP pipes is ring or is similar to ring, core concrete is filled in round FRP pipes, and core concrete is environmentally friendly concrete or normal concrete.Concrete structure of the invention, make use of new sustainable development material come it is cost-effective, it is ensured that concrete structure have high-bearing capacity, strong shock resistance, it is lightweight the features such as.Due to circle FRP constraint concrete core simple structure and when by prefabrication, difficulty of construction is reduced, and technical economic benefit higher can be obtained, can be used in the engineering structures such as Super High, Loads of Long-span Bridges.
Description
Technical field
The invention belongs to building structure technology field, more particularly, to one kind using the concrete core enhancing of circle FRP constraint
Concrete structure.
Background technology
In recent years, being continuously increased with building height and bridge span, coupled column receives the extensive pass of engineering field
Note.For coupled column, bearing capacity is one of important Performance evaluation criterion.For example in frame structure, Super High and big
In bridge beam, the column section that high axial compression ratio performance is met using limited column section area is always engineering field pursuit
One of target.At present, the column section type for more often using has armored concrete, concrete filled steel tube, composite steel tube concrete etc..Its
In concrete be main pressure-bearing material, played the strong advantage of concrete compression ability, but concrete material be in it is larger should
It is easy to soften during change, globality is deteriorated, and is unfavorable for the raising of its anti-seismic performance.
For the shortcoming that concrete is easy to soften in common column section, FRP constraint concrete column has obtained widely studied.
How FRP constraint concrete column tool is turned into the concrete structure of practical engineering application, being that building engineering field is just to be achieved asks
Topic.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the present invention is intended to provide one
Plant using the enhanced concrete structure of circle FRP constraint concrete core, FRP constraint concrete will be justified and be arranged on normal concrete
Cross-sectional internal, to improve partial cross section bearing capacity.Further, since FRP has strong Corrosion Protection, using except common coagulation
There is corrosive filler beyond soil, so as to alleviate traditional resource exhaustion crisis, increase economic efficiency.
The enhanced concrete structure of use circle FRP constraint concrete core according to embodiments of the present invention, including：Outside is mixed
Solidifying soil and at least one circle FRP constraint concrete core, each described round FRP constraint concrete core include：Circle FRP pipes, institute
The cross section for stating round FRP pipes is formed as circular, and the outer concrete is cast on the outer surface of the round FRP pipes, the circle
The fiber winding direction of FRP pipes is ring or is similar to ring；Core concrete, the core concrete is filled in the circle
In FRP pipes, the core concrete is environmentally friendly concrete or normal concrete.
According to embodiments of the present invention uses the enhanced concrete structure of circle FRP constraint concrete core, by using extremely
A few round FRP constraint concrete core, the circle FRP constraint concrete core make use of FRP material high-strength light, antiseptic property
Good advantage, can using normal concrete and various environmentally friendly concrete as circle FRP pipes inner stuffing, not only
Can come cost-effective using new sustainable development material, and ensure that enhanced mixed using FRP constraint concrete core is justified
Xtah Crude Clay structure have high-bearing capacity, strong anti-seismic performance, it is lightweight the features such as.Due to circle FRP constraint concrete core simple structure
And when by prefabrication, significantly reduce difficulty of construction.Concrete structure is arranged on using circle FRP constraint concrete core
Internal form can obtain technical economic benefit higher, can be used in the engineering structures such as Super High, Loads of Long-span Bridges.
In certain embodiments, the round FRP constraint concrete core is one, and the round FRP constraint concrete core
The geometric center of the heart overlaps with the geometric center of the outer concrete.Thus, inexpensive, high performance middle-size and small-size section can be obtained
The concrete structure in face.
In certain embodiments, the round FRP constraint concrete core is multiple, the multiple round FRP constraint concrete
The geometric center of core is located on same circle, and the center of circle of the circle overlaps with the geometric center of the outer concrete, and described
Multiple circle FRP constraint concrete core is distributed around above-mentioned round uniform intervals.Thus, inexpensive, high performance heavy in section can be obtained
The concrete structure of size.
In certain embodiments, hollow side is also included using the enhanced concrete structure of circle FRP constraint concrete core
Steel pipe, the cross section of the square steel tube is formed as square, and at least one circle FRP constraint concrete core is located at the square steel
In pipe, the outer concrete is filled between the square steel tube and the round FRP pipes.
In certain embodiments, multi-cavity steel tube is also included using the enhanced concrete structure of circle FRP constraint concrete core,
The multi-cavity steel tube has multiple cavitys, and at least one circle FRP constraint concrete core, each institute are provided with each described cavity
State and the outer concrete is filled between the inwall of cavity and the round FRP pipes.
In certain embodiments, longitudinal reinforcement is also included using the enhanced concrete structure of circle FRP constraint concrete core,
The longitudinal reinforcement is distributed in the outside of the round FRP constraint concrete core, and the longitudinal reinforcement is embedded in the outside and mixes
In solidifying soil.
In certain embodiments, multiple stirrups are also included using the enhanced concrete structure of circle FRP constraint concrete core
And longitudinal reinforcement, each described stirrup is formed as annular, and the multiple stirrup is longitudinally spaced distribution, the longitudinal reinforcement with
At least one circle FRP constraint concrete core is located in the stirrup, the multiple stirrup, longitudinal reinforcement and the circle
FRP constraint concrete core constitutes steel reinforcement cage, and the outer concrete is filled in the multiple stirrup.
Additional aspect of the invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by practice of the invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the structural representation of round FRP constraint concrete core according to an embodiment of the invention；
Fig. 2 is the enhanced concrete structure of the single round FRP constraint concrete core of use according to embodiments of the present invention
Schematic cross-section；
Fig. 3 is according to an embodiment of the invention enhanced mixed using multiple (four) round FRP constraint concrete cores
The schematic cross-section of Xtah Crude Clay structure；
Fig. 4 be it is according to an embodiment of the invention using the enhanced square steel tube of single round FRP constraint concrete core about
The schematic cross-section of the concrete column of beam；
Fig. 5 is according to an embodiment of the invention enhanced many using multiple (four) round FRP constraint concrete cores
The schematic cross-section of the concrete column structure of chamber steel tube confinement；
Fig. 6 is according to an embodiment of the invention using the enhanced reinforced concrete of single round FRP constraint concrete core
The schematic cross-section of earth pillar structure；
Fig. 7 is in the concrete core replacement part steel reinforcement cage using circle FRP constraint according to an embodiment of the invention
The structural representation of the reinforced column of compressive reinforcement.
Reference：
100：Concrete structure；100a：The concrete column of square steel tube constraint；100b：Reinforced column；100c：Multi-cavity
The concrete column of steel tube confinement；
10：Circle FRP constraint concrete core；1：Circle FRP pipes；2：Core concrete；2a：Normal concrete；2b：Environment friend
Good type concrete；
20：Outer concrete；30：Square steel tube；40：Longitudinal reinforcement；50：Multi-cavity steel tube；60：Stirrup；
200：Steel reinforcement cage；
R：The circle that the center of circle of multiple circle FRP constraint concrete core is formed.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " vertical ", " level ",
The orientation or position relationship of the instruction such as " interior ", " outward ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings or position
Relation is put, the description present invention is for only for ease of and is simplified description, it is necessary rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the description of the invention, unless otherwise indicated, " multiple " is meant that two or more.
Use circle FRP constraint concrete core according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 7 enhanced mixed
Xtah Crude Clay structure 100.
As shown in Figure 1-Figure 3, the enhanced concrete knot of use circle FRP constraint concrete core according to embodiments of the present invention
Structure 100, including：The circle FRP constraint of outer concrete 20 and at least one concrete core 10, each circle FRP constraint concrete core
The heart 10 includes：Circle FRP pipes 1 and core concrete 2, the cross section of circle FRP pipes 1 are formed as circular, and outer concrete 20 is cast in
On the outer surface of circle FRP pipes 1, core concrete 2 is filled in round FRP pipes 1.
Here core concrete 2 can be environmentally friendly concrete 2b, and alternatively, environmentally friendly concrete 2b can be sea
Water sea sand concrete, regenerated aggregate concrete or building refuse concrete etc..
Wherein, seawater sea sand type concrete is primarily referred to as being played the part of by seawater and sea sand the concrete of system, and regeneration aggregate is mixed
Solidifying soil or building refuse concrete are primarily referred to as the concrete produced by the regeneration of solid waste, i.e. environment friend
Good type concrete 2b is the regeneration concrete that at least a portion raw material is discarded object, therefore, environmentally friendly concrete 2b is can
The building material of sustainable development, and raw material sources are compared with horn of plenty.Certainly, embodiment of the present invention not limited to this, it is environmentally friendly mixed
Solidifying soil 2b is also made using flyash equal industrial residue, is not especially limited here.
When core concrete 2 is using environmentally friendly concrete 2b, urban construction is not only facilitated, and be conducive to solution
Certainly the problem of offal treatment, limestone resource and effective use of energy sources, alleviates carrying capacity of environment, alleviates traditional resource exhaustion
Crisis, meanwhile, also reduce cost, improve economic benefit.
Certainly, core concrete 2 or normal concrete 2a, normal concrete 2a is for regeneration concrete
Traditional concrete.Due to the features such as the market development of normal concrete 2a is stable, construction technology is ripe therefore general
Logical concrete 2a has the advantages such as the purchasing of raw materials is convenient, the engineering time is short, quality is high.
Core concrete 2 is constrained using circle FRP pipes 1, the good characteristic of FRP low intensities, ductility can be given full play to, to put circle to good use
Humidification of the FRP constraint concrete core 10 in concrete structure 100.
From for material, FRP (Fiber Reinforced Plastics/ fibre-reinforced plastics) material is by fibre
After dimension material mixes according to a certain percentage with matrix material, the high performance material formed by the extruding of special mould, drawing.
In embodiments of the present invention, FRP cloth is arranged in creel by circle FRP pipes 1 using Mechanical entanglement method in being made on wrapping machine during making
On, FRP cloth unwinds from creel, and by tension system, natural resin groove, Guide head, by small side board band, it moves back and forth and stirs
Disturb on the mandrel (mould) turned round.Fiber disturbs angle and is preset according to intensity with fiber alignment density degree, and by mandrel (mould)
The ratio between rotating speed and dolly reciprocating speed, carry out control parameter exactly.After solidification, the composite product demoulding that will be disturbed is formed
Circle FRP pipes 1.
The round FRP pipes 1 being made up of FRP material have light weight, hardness big, the advantages of high mechanical strength, therefore circle FRP pipes
After 1 pair of core concrete 2 enters row constraint, the rigidity and ductility of round FRP constraint concrete core 10 can not only be strengthened, and can improve
The structural strength of circle FRP constraint concrete core 10 and the bearing capacity due to local compression in method of section direction, comply with construction material
Use standard.Here, the method direction of circle FRP constraint concrete core 10 refers to and circle FRP constraint concrete core 10
The perpendicular direction of tangential direction.
And the resistance to permeability of FRP material is strong, anti-corrosive properties are good, it is possible to use with corrosive low-cost concrete as filling out
Thing is filled, when the environmentally friendly concrete 2b for using is doped with corrosive raw materials (such as siliceous slag), circle FRP pipes 1 can effectively be prevented
Only corrosive substance outer layers infiltration, it is to avoid the low material of corrosion antiseptic property.Therefore, round FRP constraint concrete core is extended
The service life of the heart 10.Meanwhile, when environmentally friendly concrete 2b is produced, without the corrosive substance in removal raw material,
Reduce the procedure of processing and manufacturing cost of environmentally friendly concrete 2b.
Preferably, the fiber winding direction of circle FRP pipes 1 is ring or is similar to ring.For convenience of describing, retouching below
In stating, ring refers to direction shown in Q in Fig. 2, axially refers to direction shown in P in Fig. 2, radially refers to side shown in O in Fig. 2
To will not be described in great detail afterwards.
Using FRP rings or the fiber of ring winding is similar to, circle FRP pipes 1 can be played when core concrete 2 receives compression swelling
Passive bound is acted on, and gives full play to the strong characteristic of concrete material compression capability, concrete is improved under Three-phase stress state
Its axial carrying capacity.
Specifically, inventor has found that the load-deformation curve of circle FRP constraint concrete core 10 is in through many experiments
The bearing capacity for increasing circle FRP constraint concrete core 10 after the change of shape bilinearity, i.e. section are surrendered continues to rise, and circle FRP is about
Beam concrete core 10 can provide more excellent bearing capacity and anti-seismic performance, and the partial compression bearing capacity in its method of section direction shows
Write and improve, rigidity, intensity and ductility have also risen, and anti-seismic performance is strengthened, more excellent so as to obtain technical economic benefit
Section.
That is, the concrete structure 100 of the embodiment of the present invention, is that FRP pipes 1 are constrained, core concrete 2 is filled out using justifying
The round FRP constraint concrete core 10 for filling, is used as a part for whole concrete structure 100, to strengthen concrete structure 100
Overall performance.
When concrete structure 100 is constructed, circle FRP pipes 1 can be fixed in the model of concrete structure 100 in advance, so
Core concrete 2 is first poured afterwards, after core concrete 2 conserves a period of time, then outer concrete 20 is poured, and makes outside coagulation
Soil 20 is cast on the outer surface of round FRP pipes 1 to form one.
In addition, circle FRP constraint concrete core 10 can be by prefabrication, that is, justifying FRP constraint concrete core 10 can conduct
Single building materials concentrate manufacture, sale by factory, and unit in charge of construction requires the circle of buying dimension, quantity according to job site
FRP constraint concrete core 10.When constructing at the scene, justify the effect of FRP constraint concrete core 10 similar to building materials such as reinforcing bars,
The model stage is built in concrete structure 100 to combine circle FRP constraint concrete core 10 with other building materials, then row pours outside
Concrete 20, so as to substantially reduce difficulty of construction.
According to embodiments of the present invention uses the enhanced concrete structure 100 of circle FRP constraint concrete core, by using
At least one circle FRP constraint concrete core 10, the circle FRP constraint concrete core 10 make use of FRP material high-strength light, prevent
The good advantage of rotten performance, can be using normal concrete 2a and various environmentally friendly concrete 2b as in circle FRP pipes 1
Filler, using new sustainable development material come cost-effective, and can not only ensure that using circle FRP constraint concrete core
The enhanced concrete structure 100 of the heart have high-bearing capacity, strong anti-seismic performance, it is lightweight the features such as.Due to circle FRP constraint concrete
The simple structure of core 10 and by prefabrication, therefore difficulty of construction can be significantly reduced.Using circle FRP constraint concrete core
10 forms for being arranged on inside concrete structure 100 can obtain technical economic benefit higher, can be used for Super High, long span bridge
In the engineering structures such as beam.
Different specific embodiments of the invention are described referring to Fig. 1, Fig. 3-Fig. 7, it is necessary to explanation, different real
Apply in example, identical label represents identical part.
First embodiment
In this embodiment, as shown in figure 1, circle FRP constraint concrete core 10 is one, the single round FRP of this set
The concrete structure 100 of confined concrete core 10 is applied to the component in middle-size and small-size section, thus, can obtain low cost, Gao Xing
The concrete structure in the middle-size and small-size section of energy.
Preferably, as shown in figure 1, the geometry of the geometric center of circle FRP constraint concrete core 10 and outer concrete 20
Center superposition.Thus, it is ensured that steady using the enhanced integrated symmetric of concrete structure 100 of circle FRP constraint concrete core, performance
It is fixed, be conducive to component axial compression, reduce the eccentric adverse effect brought.And be easy to increase using circle FRP constraint concrete core
The design of the engineering structure of strong concrete structure 100, calculating.
In the example of fig. 1, using the enhanced concrete structure 100 of circle FRP constraint concrete core generally square column,
The center of circle of circle FRP constraint concrete core 10 is located at the center of concrete structure 100.
Second embodiment
In this embodiment, as shown in figure 3, circle FRP constraint concrete core 10 is multiple, the multiple circle FRP of this set
The concrete structure 100 of confined concrete core 10 is applied to the component of heavy in section size.Thus, low cost, Gao Xing can be obtained
The concrete structure of the heavy in section size of energy.
Specifically, as shown in figure 3, the geometric center of multiple circle FRP constraint concrete cores 10 is located on same round R, circle R
The center of circle overlapped with the geometric center of outer concrete 20, and multiple circle FRP constraint concrete core 10 around above-mentioned round R it is uniform between
Every distribution.When multiple 10 enhancings of circle FRP constraint concrete cores are set i.e. inside concrete structure 100, all multiple circle FRP
Confined concrete core 10 should arrange according to Central Symmetry form, thus, it is ensured that using the concrete core enhancing of circle FRP constraint
The integrated symmetric of concrete structure 100, stable performance, be conducive to component axial compression, reduce the eccentric adverse effect brought.And
It is easy to the design of the engineering structure using the enhanced concrete structure 100 of circle FRP constraint concrete core, calculates.
In the example of fig. 3, using the enhanced concrete structure 100 of circle FRP constraint concrete core generally square column,
Circle FRP constraint concrete core 10 is four, and the center of circle of four round R of the round formation of FRP constraint concrete core 10 is located at coagulation
The center of soil structure 100.
To sum up, the number of FRP constraint concrete core 10 is justified by concrete structure in first embodiment and second embodiment
100 sectional dimensions are flexibly set, thus, it is possible to the excessive problem for causing cuff inefficiency of sectional dimension is avoided, and so that
Section form is versatile and flexible.
The concrete column of square steel tube constraint can be used for using the enhanced concrete structure 100 of circle FRP constraint concrete core
In the coupled column such as 100a, reinforced column 100b and the concrete column 100c of multi-cavity steel tube constraint, its structure type is not limited, under
Wherein four kinds specific constructive forms are enumerated in face by taking following three to sixth embodiments as an example.
3rd embodiment
As shown in figure 4,3rd embodiment is the concrete column 100a (CFST) of square steel tube constraint, i.e., using circle FRP constraint
The enhanced concrete structure 100 of concrete core also includes hollow square steel tube 30, and the cross section of square steel tube 30 is formed as square,
Circle FRP constraint concrete core 10 is located in square steel tube 30, and outer concrete 20 is filled between square steel tube 30 and circle FRP pipes 1.
The setting of outer layer square steel tube 30, improves using the enhanced concrete structure 100 of circle FRP constraint concrete core
Rigidity, energy dissipation capacity, change FRP constraint Brittleness of Concrete failure mode, are conducive to Aseismic Design.Thus, using circle FRP about
The enhanced concrete structure 100 of beam concrete core ensure that the excellent specific properties such as high-bearing capacity, ductility high, antidetonation be strong, lightweight.
For this section, the arrangement of circle FRP constraint concrete core 10 can greatly improve column section compression bearing, and raising is prolonged
Property, built-in round FRP constraint concrete core 10 is turned into the high-performance component of low cost, obtain Technological Economy effect higher
Benefit.
Outer layer square steel tube 30 is set into squarely, it is whole using the enhanced concrete structure 100 of circle FRP constraint concrete core
External shape is square column, then be easy to node to connect, and facilitates engineering construction.Here, node refers to the tie point of structural member, due to
Concrete structure 100 is square column, and other structures part such as beam, wall, floor etc. in square column and engineering are attached more
Easily, difficulty of construction reduction.
In the third embodiment, circle FRP constraint concrete core 10 is circle FRP constraint at least one, Fig. 4 example showns
Concrete core 10 is one, and certainly, when the component of heavy in section size is applied to, circle FRP constraint concrete core 10 can be
It is multiple.
Fourth embodiment
As shown in figure 5,3rd embodiment is the concrete column 100c of multi-cavity steel tube constraint, i.e., using circle FRP constraint coagulation
The enhanced concrete structure 100 of native core also includes multi-cavity steel tube 50, and multi-cavity steel tube 50 has multiple cavitys, set in each cavity
There is at least one circle FRP constraint concrete core 10, outer concrete is filled between the inwall and circle FRP pipes 1 of each cavity
20。
In super high rise structure, frequently with multi-cavity steel tube constraint concrete column 100c, because steel are easily surrendered, by
At least one is set in per chamber and justifies FRP constraint concrete core 10, can not only improve column section compression bearing, and improve
The anti-buckling ability of steel, so as to improve structure ductility and shock resistance.
5th embodiment
As shown in fig. 6, the 5th embodiment is a form of reinforced column 100b, i.e., using circle FRP constraint coagulation
The enhanced concrete structure 100 of native core also includes longitudinal reinforcement 40, and longitudinal reinforcement 40 is distributed in round FRP constraint concrete core
10 outside, longitudinal reinforcement 40 is embedded in outer concrete 20.Here, longitudinal reinforcement 40 is along parallel to circle FRP constraint coagulation
The bearing of trend of native core 10 is set.Circle FRP constraint concrete core 10 is main to provide compression bearing, and longitudinal reinforcement 40 is led
Tensile capacity is provided, the purpose of the pressure bearing capacity and enhancing ductility for improving concrete structure 100 is reached, and due to circle
Constraint of the FRP pipes 1 to core concrete 2, improves globalities of the reinforced column 100b when high axial compression ratio is pressurized, so that
Be conducive to improving its anti-seismic performance.
In this embodiment, as shown in fig. 6, the geometric center and outer concrete 20 of circle FRP constraint concrete core 10
Geometric center overlap, the diameter with diameter greater than longitudinal reinforcement 40 of circle FRP constraint concrete core 10.
Sixth embodiment
As shown in fig. 7, the embodiment is another form of reinforced column 100b.Specifically, using circle FRP constraint
The enhanced concrete structure 100 of concrete core includes multiple stirrups 60 and longitudinal reinforcement 40, and each stirrup 60 is formed as annular,
Multiple stirrups 60 are longitudinally spaced distribution, and the circle FRP constraint of longitudinal reinforcement 40 and at least one concrete core 10 is located at stirrup
In 60, multiple stirrups 60, longitudinal reinforcement 40 and circle FRP constraint concrete core 10 constitute steel reinforcement cage 200, and outer concrete 20 is filled out
Fill in the section comprising multiple stirrups 60.
In this embodiment, circle FRP constraint concrete core 10 is identical with the effect of partial compression longitudinal reinforcement 40, also may be used
To say, in reinforced column 100b, circle FRP constraint concrete core 10 substituted for partial compression longitudinal reinforcement 40, so that
Improve the partial cross section compression bearing and ductility for reducing reinforced column 100b.
Specifically, at least it is spaced a longitudinal reinforcement 40 between adjacent two round FRP constraint concrete cores 10.At this
In embodiment, the diameter of circle FRP constraint concrete core 10 is substantially equivalent to the diameter of longitudinal reinforcement 40, multiple stirrups 60 and longitudinal direction
Reinforcing bar 40 is discretely fixed on the inner side of stirrup 60.
To sum up, the enhanced concrete structure 100 of use circle FRP constraint concrete core according to embodiments of the present invention, can
Implementation is strong, and can obtain inexpensive, high performance concrete knot using new sustainable development material come cost-effective
Structure.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or feature that the embodiment or example are described
It is contained at least one embodiment of the invention or example.In this manual, the schematic representation to above-mentioned term differs
Surely identical embodiment or example are referred to.And, the specific features of description, structure, material or feature can be any
Combined in an appropriate manner in one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
Can these embodiments be carried out with various changes, modification, replacement and modification in the case of departing from principle of the invention and objective, this
The scope of invention is limited by claim and its equivalent.
Claims (1)
1. a kind of using the enhanced concrete structure of circle FRP constraint concrete core, it is characterised in that including：Outer concrete
Justify FRP constraint concrete core with least one, each described round FRP constraint concrete core includes：
Circle FRP pipes, the cross section of the round FRP pipes is formed as circular, and the outer concrete is cast in the outer of the round FRP pipes
On surface, the fiber winding direction of the round FRP pipes is ring or is similar to ring；
Core concrete, the core concrete is filled in the round FRP pipes, and the core concrete is environmentally friendly mixed
Solidifying soil or normal concrete；And
Multiple stirrups and longitudinal reinforcement, each described stirrup are formed as annular, and the multiple stirrup is longitudinally spaced distribution, institute
State longitudinal reinforcement and at least one circle FRP constraint concrete core is located in the stirrup, the multiple stirrup, longitudinal steel
Muscle and the round FRP constraint concrete core constitute steel reinforcement cage, and the outer concrete is filled in the multiple stirrup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039276.5A CN104594186B (en) | 2015-01-27 | 2015-01-27 | Using the enhanced concrete structure of circle FRP constraint concrete core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039276.5A CN104594186B (en) | 2015-01-27 | 2015-01-27 | Using the enhanced concrete structure of circle FRP constraint concrete core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104594186A CN104594186A (en) | 2015-05-06 |
| CN104594186B true CN104594186B (en) | 2017-05-31 |
Family
ID=53120214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510039276.5A Active CN104594186B (en) | 2015-01-27 | 2015-01-27 | Using the enhanced concrete structure of circle FRP constraint concrete core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104594186B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105113385A (en) * | 2015-08-12 | 2015-12-02 | 刘文海 | Prefabricated steel tube high-strength concrete column pier and preparation method thereof |
| JP6628096B2 (en) * | 2016-07-19 | 2020-01-08 | 李 文聰Ｌｉ Ｗｅｎｃｏｎｇ | Structure having a CFT-type mega main bar |
| CN106223539A (en) * | 2016-08-22 | 2016-12-14 | 广东工业大学 | A kind of high ductility FRP beams of concrete and production technology |
| CN106192764A (en) * | 2016-08-22 | 2016-12-07 | 广东工业大学 | A kind of pre-stress FRP concrete box type girder and production technology |
| CN106836646A (en) * | 2017-01-23 | 2017-06-13 | 辽宁工业大学 | A kind of fiber cloth replaces the sea sand concrete columns of stirrup |
| CN107152126A (en) * | 2017-06-26 | 2017-09-12 | 湖北工程学院 | The composite steel tube concrete column of built-in steel pipe bundled tube |
| CN113969642B (en) * | 2020-07-07 | 2023-06-30 | 香港理工大学 | Novel FRP constraint concrete column |
| CN112627828A (en) * | 2020-11-05 | 2021-04-09 | 中煤科工集团北京华宇工程有限公司 | Mine well wall structure and construction method thereof |
| CN112726959A (en) * | 2021-01-06 | 2021-04-30 | 华南理工大学 | High-strength concrete composite column with high-strength steel pipes and internally-arranged FRP pipes |
| CN114872184B (en) * | 2022-05-06 | 2023-12-22 | 中煤科工集团北京华宇工程有限公司 | Method for manufacturing shield segment and method for manufacturing shield pipeline |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11350425A (en) * | 1998-06-11 | 1999-12-21 | Sumitomo Metal Ind Ltd | Composite column base structure and its constructing method |
| KR100743419B1 (en) * | 2005-08-17 | 2007-07-30 | 고려대학교 산학협력단 | A reinforced concrete column with internally confined hollow |
| CN100587184C (en) * | 2007-07-06 | 2010-02-03 | 沈阳建筑大学 | Fibre reinforced plastic-steel pipe-concrete column |
| CN101736860A (en) * | 2009-12-16 | 2010-06-16 | 沈阳建筑大学 | Circular cross-section steel-concrete-FRP solid composite column |
| CN201598776U (en) * | 2010-01-06 | 2010-10-06 | 哈尔滨工业大学深圳研究生院 | FRP pipe sea sand concrete column |
| CN102425268A (en) * | 2011-10-24 | 2012-04-25 | 沈阳建筑大学 | Composite column by steel pipe-FRP tube-steel skeleton-concrete |
| CN102635063A (en) * | 2012-04-28 | 2012-08-15 | 西安建筑科技大学 | Post-tensioned prestressing steel pipe high-strength concrete superposition bridge pier and construction method thereof |
| CN103015629A (en) * | 2012-12-13 | 2013-04-03 | 广西大学 | Built-in polyvinyl chloride (PVC) pipe enhanced reinforced concrete combined column |
| CN103967209A (en) * | 2014-04-12 | 2014-08-06 | 北京工业大学 | Combined column formed by embedding round steel tube filled with recycled concrete in square steel tube filled with concrete and reinforced by spiral hoop |
| CN103967214B (en) * | 2014-04-12 | 2016-04-20 | 北京工业大学 | Multi-cavity steel tube concrete embedded round steel pipe regeneration concrete band batten plate coupled column |
| CN204509978U (en) * | 2015-01-27 | 2015-07-29 | 清华大学 | Adopt the concrete structure that circle FRP constraint concrete core strengthens |
-
2015
- 2015-01-27 CN CN201510039276.5A patent/CN104594186B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104594186A (en) | 2015-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104594186B (en) | Using the enhanced concrete structure of circle FRP constraint concrete core | |
| CN107503470A (en) | A kind of pre-stress FRP sleeve FRP tendons sea sand seawater expansive concrete coupled column | |
| CN109098332A (en) | A kind of novel contignation and its method of construction towards marine environment | |
| CN105926853A (en) | Semi-precast concrete filled steel tubular column with built-in high-strength structural steel and manufacturing method thereof | |
| CN106906951A (en) | The concrete filled steel tube component and its processing method of a kind of steel tube confinement of sandwich | |
| CN106351401B (en) | Half assembled super-high strength steel pipe slip casting overlaps rod structure and production method | |
| CN206707122U (en) | A kind of concrete filled steel tube component of the steel tube confinement of sandwich | |
| CN204509978U (en) | Adopt the concrete structure that circle FRP constraint concrete core strengthens | |
| CN103243864A (en) | Composite material stirrup | |
| CN107060210A (en) | A kind of FRP combination dies net post and preparation method thereof | |
| CN103967205A (en) | FRP (Fiber Reinforced Polymer) pipe-recycled concrete-steel pipe double-walled hollow combined member | |
| CN106917470A (en) | The steel tube confinement concrete-filled rectangular steel tube component and its processing method of a kind of sandwich | |
| CN106760215A (en) | A kind of fiber-bamboo wood composite pipe concrete composite structure | |
| CN105298021A (en) | Circular steel tube concrete column and anti-buckling reinforcement and repair method thereof | |
| CN107366386A (en) | A kind of multitube confined concrete double-walled open tubular column and production technology | |
| CN108360749A (en) | A kind of FRP- steel interlining composite pipes concrete column and preparation method thereof | |
| CN111395655A (en) | Sleeve-constrained reinforced concrete-reinforced seawater sea sand concrete structure | |
| CN106088474A (en) | Rectangular steel pipe GFRP pipe concrete coupled column | |
| CN106193455A (en) | A kind of ultra-high performance concrete cylinder permanent template and preparation method thereof | |
| CN207553442U (en) | Slightly expanded concrete coupled column is filled out in a kind of RPC outer barrels | |
| CN206681263U (en) | A kind of concrete filled steel tube new type of component of steel tube confinement | |
| CN104746799B (en) | The environmentally friendly concrete combination columns of steel FRP and its method of construction | |
| CN208136920U (en) | A kind of triangle prestressing force foundation pit supporting pile and its connection structure | |
| CN207332114U (en) | A kind of steel tube confinement concrete-filled rectangular steel tube component of sandwich | |
| CN207277682U (en) | A kind of multitube confined concrete double-walled open tubular column |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |