CN202298891U - Large hidden grid type or truss type mixed component - Google Patents

Large hidden grid type or truss type mixed component Download PDF

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Publication number
CN202298891U
CN202298891U CN2011202931512U CN201120293151U CN202298891U CN 202298891 U CN202298891 U CN 202298891U CN 2011202931512 U CN2011202931512 U CN 2011202931512U CN 201120293151 U CN201120293151 U CN 201120293151U CN 202298891 U CN202298891 U CN 202298891U
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China
Prior art keywords
steel pipe
concrete
component
steel
truss
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Expired - Lifetime
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CN2011202931512U
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Chinese (zh)
Inventor
于清
李永进
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Tsinghua University
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Tsinghua University
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Priority to CN2011202931512U priority Critical patent/CN202298891U/en
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Publication of CN202298891U publication Critical patent/CN202298891U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a large hidden grid type or truss type mixed component, which belongs to the technical field of engineering structures. The component is the component with a triangular cross section, wherein three steel pipes or steel pipe concrete is connected into a whole through a steel pipe web member to form a three-limb structure type or truss type steel pipe or steel pipe concrete; the three-limb structure type or truss type steel pipe or steel pipe concrete serves as a rigid framework; and reinforced concrete is wrapped outside the rigid framework. When the component is compared with the traditional grid type (truss type) steel pipe structure, through the externally wrapped reinforced concrete, the integrity of the component is improved, the shear resistance of the component is increased, the steel pipe web member in the component can be protected, corrosion of the steel pipe in an outdoor environment is prevented, the maintenance cost is reduced, and the service life of the structure is prolonged. In addition, due to the triangular cross section, the component has the characteristic of more attractive appearance and the like. The problem that relatively higher bending-resistant rigidity and shear-resistant bearing capacity of the cross section are required in the components in large public building and large-span bridges is solved through the large hidden grid type or truss type mixed component.

Description

A kind of huge dark lattice or truss-like hybrid component
Technical field
The invention belongs to the engineering structures technical field, particularly a kind of huge dark lattice or truss-like hybrid component.Possible application: in all kinds of large public buildings, the bridge engineering structure.
Background technology
The large scale structure member needs very big cross section bending rigidity and shear-carrying capacity to resist horizontal loadings such as wind load, seismic load; Improve rigidity if enlarge the sectional dimension of reinforced concrete member simply, the concrete deadweight just might be with post or beam conquassation; In addition, creep in the concrete in mass, shrink and all more outstanding, also will produce many adverse effects structure in the heat of hydration problem in hydrated cementitious stage.If adopt steel work, its stable problem will be more outstanding, and steel using amount is huge.
Summary of the invention
The present invention is directed to the medium-and-large-sized structural element of prior art needs the problem of larger cross-section bending rigidity and shear-carrying capacity, and a kind of huge dark lattice or truss-like hybrid component are provided.
A kind of huge dark lattice provided by the invention or truss-like hybrid component; It is the triangular-section member; Connect 3 steel pipes or concrete filled steel tube in aggregates through the steel pipe web member; Form 3 limb lattices or truss-like steel pipe or concrete filled steel tube as stiff skeleton, stiff skeleton encased steel reinforced concrete.
Fill concrete forms described concrete filled steel tube in steel pipe.
Assembling reinforcement between stressed steel pipe or concrete filled steel tube, and folded water external wrapping concrete and form described encased steel reinforced concrete.
Said reinforcing bar comprises longitudinal reinforcement and transverse reinforcement.
The structural steel pipe that employing welded steel pipe, seamless steel pipe, cold-bent pipe or other modes form is as the steel pipe of member.
Concrete in concrete filled steel tube and the encased steel reinforced concrete can adopt constructional materialss such as high-strength concrete or self-compacting concrete, wants strict control specification of aggregate simultaneously, guarantee concrete can be evenly, perfusion densely.
Huge dark lattice of the present invention or truss-like hybrid component, through the steel pipe web member that 3 steel pipes or concrete filled steel tube connection are in aggregates, forming 3 limb lattice (truss-like) steel pipes or concrete filled steel tube is the initial stage working load that stiff skeleton is born structure earlier; Assembling reinforcement between stressed steel pipe or concrete filled steel tube again; At last, the triangular-section member that combines of folded pouring concrete.Guaranteeing can co-ordination between the different materials.
The present invention is to provide a kind of novel huge dark lattice or truss-like hybrid component; It is the initial stage working load of bearing structure by 3 limb lattice (truss-like) steel pipes or concrete filled steel tube as stiff skeleton earlier; The triangular-section member that assembling reinforcement and folded pouring concrete combine between stressed steel pipe or concrete filled steel tube again, guaranteeing can co-ordination between the different materials.
Innovative point of the present invention and beneficial effect are: with 3 limb lattice (truss-like) steel pipes or concrete filled steel tube as skeleton; Its section form is carried out, and structural integrity is strong, can be under the situation that guarantees rigidity of section; Reduce concrete consumption significantly, alleviate member dead weight; 3 limb lattice (truss-like) steel pipes or steel tube concrete soil skeleton in the member not only can significantly improve the shearing resistance and the anti-seismic performance of member, and can bear the initial stage working load of structure, thereby both have been convenient to construction, again can the reduction of erection time.In addition; Compare with traditional lattice or truss-like steel tubular structure, the encased steel reinforced concrete not only improves the globality of member, increases the shear behavior of member; But also can the steel pipe web member in the member be played a protective role; Prevent the corrosion of steel pipe lowered in field environment, reduce maintenance cost, improve the service life of structure.In addition, the triangular-section form of member has more characteristics such as attractive in appearance.
Dark lattice of the present invention or truss-like hybrid component have solved the problem that member in large public building, the long span bridge beam needs larger cross-section bending rigidity and shear-carrying capacity.
Description of drawings
Fig. 1 is huge dark lattice of the present invention or truss-like hybrid component plan view;
Fig. 2 is an A-A sectional drawing among Fig. 1;
More than each figure in: 1-steel pipe or concrete filled steel tube, 2-steel pipe web member, 3-external wrapping concrete, 4-longitudinal reinforcement, 5-transverse reinforcement.
The specific embodiment
Following embodiment can make those skilled in the art more comprehensively understand the present invention, but does not limit the present invention in any way.
Embodiment 1
A kind of huge dark lattice or truss-like hybrid component, it is the triangular-section member, and is through steel pipe web member 2 that 1 connection of 3 steel pipes is in aggregates, forms 3 limb lattices or truss-like steel pipe as stiff skeleton, stiff skeleton encased steel reinforced concrete.
In 1 assembling reinforcement of stressed steel pipe, and the folded external wrapping concrete 3 that waters forms described encased steel reinforced concrete.
Said reinforcing bar comprises longitudinal reinforcement 4 and transverse reinforcement 5.
Adopt the steel pipe of welded steel pipe as member.
Concrete in the encased steel reinforced concrete adopts high-strength concrete, wants strict control specification of aggregate simultaneously, guarantee concrete can be evenly, perfusion densely.
Fig. 1 is the plan view of the hybrid component of 3 limb lattices or truss-like steel pipe skeleton encased steel reinforced concrete, can be applied to compressed member or flexural member etc. in the structure.
Embodiment 2
A kind of huge dark lattice or truss-like hybrid component; It is the triangular-section member; Fill concrete forms concrete filled steel tube 1 in steel pipe; Through steel pipe web member 2 that 1 connection of 3 concrete filled steel tubes is in aggregates, form 3 limb lattices or truss-like concrete filled steel tube as stiff skeleton, stiff skeleton encased steel reinforced concrete.
In 1 assembling reinforcement of stressed concrete filled steel tube, and the folded external wrapping concrete 3 that waters forms described encased steel reinforced concrete.
Said reinforcing bar comprises longitudinal reinforcement 4 and transverse reinforcement 5.
Adopt the steel pipe of seamless steel pipe as member.
Concrete in concrete filled steel tube and the encased steel reinforced concrete adopts self-compacting concrete, wants strict control specification of aggregate simultaneously, guarantee concrete can be evenly, perfusion densely.
Fig. 1 is the plan view of the hybrid component of 3 limb lattices or truss-like steel tube concrete soil skeleton encased steel reinforced concrete, can be applied to compressed member or flexural member etc. in the structure.
The above; Be merely the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.

Claims (6)

1. huge dark lattice or truss-like hybrid component; It is characterized in that: it is the triangular-section member; Connect 3 steel pipes or concrete filled steel tube (1) in aggregates through steel pipe web member (2); Form 3 limb lattices or truss-like steel pipe or concrete filled steel tube as stiff skeleton, stiff skeleton encased steel reinforced concrete.
2. hybrid component according to claim 1 is characterized in that: fill concrete forms described concrete filled steel tube in steel pipe.
3. hybrid component according to claim 1 is characterized in that: assembling reinforcement between stressed steel pipe or concrete filled steel tube, and the folded external wrapping concrete (3) that waters forms described encased steel reinforced concrete.
4. hybrid component according to claim 3 is characterized in that: said reinforcing bar comprises longitudinal reinforcement (4) and transverse reinforcement (5).
5. hybrid component according to claim 1 is characterized in that: adopt the steel pipe of the structural steel pipe of welded steel pipe, seamless steel pipe or cold-bent pipe formation as member.
6. hybrid component according to claim 1 is characterized in that: the concrete in concrete filled steel tube and the encased steel reinforced concrete adopts high-strength concrete or self-compacting concrete.
CN2011202931512U 2011-08-12 2011-08-12 Large hidden grid type or truss type mixed component Expired - Lifetime CN202298891U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202931512U CN202298891U (en) 2011-08-12 2011-08-12 Large hidden grid type or truss type mixed component

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202931512U CN202298891U (en) 2011-08-12 2011-08-12 Large hidden grid type or truss type mixed component

Publications (1)

Publication Number Publication Date
CN202298891U true CN202298891U (en) 2012-07-04

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103306431A (en) * 2013-05-31 2013-09-18 福建工程学院 Reinforced concrete pipe lattice column
CN103306428A (en) * 2013-06-26 2013-09-18 清华大学 Built-in heavy load beam member of novel composite truss
CN106760218A (en) * 2016-12-08 2017-05-31 北京建筑大学 A kind of steel pipe steel bar girder
CN110670801A (en) * 2019-08-30 2020-01-10 贵州大学 Hollow truss structure

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103306431A (en) * 2013-05-31 2013-09-18 福建工程学院 Reinforced concrete pipe lattice column
CN103306431B (en) * 2013-05-31 2016-01-13 福建工程学院 Concrete reinforced pipe lattice column
CN103306428A (en) * 2013-06-26 2013-09-18 清华大学 Built-in heavy load beam member of novel composite truss
CN103306428B (en) * 2013-06-26 2015-06-10 清华大学 Built-in heavy load beam member of novel composite truss
CN106760218A (en) * 2016-12-08 2017-05-31 北京建筑大学 A kind of steel pipe steel bar girder
CN110670801A (en) * 2019-08-30 2020-01-10 贵州大学 Hollow truss structure

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Granted publication date: 20120704

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