CN109811948A - A kind of dual-prestressed composite frame of large span and floor system and construction method - Google Patents
A kind of dual-prestressed composite frame of large span and floor system and construction method Download PDFInfo
- Publication number
- CN109811948A CN109811948A CN201811473439.0A CN201811473439A CN109811948A CN 109811948 A CN109811948 A CN 109811948A CN 201811473439 A CN201811473439 A CN 201811473439A CN 109811948 A CN109811948 A CN 109811948A
- Authority
- CN
- China
- Prior art keywords
- dual
- prestressed
- prefabricated
- large span
- reinforcing steel
- 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.)
- Pending
Links
Landscapes
- Rod-Shaped Construction Members (AREA)
Abstract
The present invention relates to a kind of dual-prestressed composite frame of large span and floor system and construction methods, including band bracket prefabricated post, the prefabricated post supports composite beam, and the composite beam includes two parts, first part be factory's production first open or post-tensioned prestressing pre-erection；Second part is the stretch-draw anchor of cast-in-place lamination portion concrete and external prestressing steels.The present invention can be in large span fabricated construction in application, the sectional dimension of reduction prefabricated components, meets the requirement of production, transport and installation；The efficient production that prefabricated components may be implemented in pre-tensioning system is operated with mechanization；The application of external prestressing steels and anchoring with supporting member, can increase the whole anti-seismic performance of structure；The progressive collapse-resisting ability of structure can be improved；The efficient utilization of the prestressing technique of Design and Build may be implemented；Meet construction industry future in the public building of super-span and overweight load using the requirement of fabricated development trend.
Description
Technical field
The invention belongs to technical field of civil engineering more particularly to a kind of dual-prestressed composite frames of large span and flooring body
System and construction method.
Background technique
Assembled architecture becomes the industrialized developing direction of building trade, adds the design for establishing promotion building industrialization, applies
The standards system of the links such as work, component production, the standardization of pushing structure part, component, component are enriched the type of standard component, are mentioned
High universalizable and substitutability promote the fabricated construction system for being suitble to industrialized production, accelerate development the prefabricated of construction project
And mounting technology, improving building industrialization Integration ofTechnology level becomes a urgent task of assembled architecture development.
The building that span is smaller, bearing capacity is of less demanding currently, prefabricated concrete structure is mainly used in, such as
Residential housing.And for large span, heavy structure system, since the design section of prefabricated components is larger, to the life of prefabricated components
Produce, transport, lifting and in-site installation bring extreme difficulties, hinder large span, the industrial building of heavy duty, skyscraper and big
The application of prefabricated construction form in type public building.Assembly concrete knot can be made up using current prestressing technology
Structure cannot be in the deficiency greatly across the application in the large public buildings structural system such as heavy duty.
Prestressing technique refers to before structure bearing load, applies pressure to it in advance, makes it in outer load action
When concrete in tension zone internal force generate compression, to offset or reduce external load generation tensile stress.Prestressed concrete
Materials with High Strength performance can be given full play to, reduce sectional dimension of members, it is bright to control distress in concrete, reduction component amount of deflection effect
It is aobvious, therefore it is widely used in large span, in heavy structure engineering.External prestressing be post-tensioned prestressing system important branch it
One, externally pre-stressed concrete structure has many good qualities, and presstressed reinforcing steel casing arrangement is simple, and adjustment is easy, and simplifies post stretching
Operation sequence, substantially reduce the construction time；Simultaneously because presstressed reinforcing steel is arranged in outside web, so that pour concrete conveniently,
Reduce the friction loss in work progress and replacement presstressed reinforcing steel is convenient and easy.
It can be seen that common assembled steel reinforced concrete component greatly across in heavy structure in application, being held due to meet
The needs for carrying the performances such as power, amount of deflection and crack, will often increase the size of prefabricated components, while also increasing prefabricated components itself and weighing
Amount, brings difficulty to the production of component, transport, lifting and in-site installation, limits greatly across fabricated construction in heavy structure
Using.The present invention uses the dual prestressing technique in inside and outside, reduces scantling and increase structure entirety shock resistance to reach
Effect, create and be applied to novel primary structure member greatly across heavily loaded fabricated construction system.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of dual-prestressed composite frame of large span and floor system with
Construction method.The present invention can reduce the sectional dimension of prefabricated components, meet the requirement of production, transport and installation；Pre-tensioning system can
To realize that the efficient production of prefabricated components is operated with mechanization；The whole anti-seismic performance of structure can be increased；Structure can be improved
Progressive collapse-resisting ability；The efficient utilization of the prestressing technique of Design and Build may be implemented；Meet construction industry future
The requirement of development trend.
The present invention is achieved through the following technical solutions, and one aspect of the present invention provides a kind of dual-prestressed overlapping of large span
Concrete frame, including band bracket prefabricated post, the prefabricated post support composite beam, and the composite beam includes two parts, and first
Be divided into factory production first open or post-tensioned prestressing pre-erection, this part can according to consider undertake prefabricated components self weight, apply
Work load and part working load carry out the setting of regular reinforcement and presstressed reinforcing steel；Second part is cast-in-place lamination portion coagulation
The stretch-draw anchor of soil and external prestressing steels, it is external pre- that the remaining load configuration that need to be undertaken of pre-erection can be considered in this part
Stress rib.
Preferably, the presstressed reinforcing steel of prestressing force pre-erection uses pre-tensioning system, according to the construction technology of pre-tensioning system in work
Factory's batch is completed, and presstressed reinforcing steel uses high tensile reinforcement, steel strand wires.
Preferably, the presstressed reinforcing steel of prestressing force pre-erection uses post stretching, post-tensioned prestressing pre-erection is in factory
Production, the tensioning of presstressed reinforcing steel are anchored at factory's completion, and presstressed reinforcing steel uses unbonded prestressing tendon, delayed bonding prestressed tendon
And bonded prestressed tendon.
Another aspect of the present invention provides a kind of building according to made of above-mentioned large span dual-prestressed overlapping concrete frame
Face system.
Preferably, including composite beam, dual-prestressed floor system superimposed sheet, the dual-prestressed floor system superimposed sheet
The composite beam at place needs band bracket, remaining production is the same as upper frame frame composite beam.
Preferably, the production of dual-prestressed floor system superimposed sheet requires to be same as above, presstressed reinforcing steel is according to design requirement etc.
Spacing arrangement, theory of plasticity design is such as pressed when floorboard is located at end bay, and external prestressing steels can be anchored in beam bottom.
The third aspect of the present invention provides a kind of construction according to the above-mentioned dual-prestressed overlapping concrete frame of large span
Method, comprising the following steps:
(1) prefabricated post, the lashing hole including bracket and reserved external prestressing steels in prefabricated post are produced；
(2) composite beam pre-erection is produced, the laying of binding, presstressed reinforcing steel including regular reinforcement, concrete pour and first
Open the cutting of prefabricated components；
(3) in-site installation prefabricated post, upper and lower level column take grout sleeve to connect；
(4) in-site installation composite beam pre-erection；
(5) it is laid with template；
(6) when cast-in-place concrete intensity reaches external prestressing steels tensioning requirement, external prestressing steels are laid with；
(7) it tensioning external prestressing steels and anchors, system construction finishes.
Preferably, in step (4), by Prefabricated pre-tensioned presstressed reinforcing steel pre-erection shelve on prefabricated column bracket, put
Bracket surface laying adhesive mortar is levelling before setting, with gap between adhesive mortar filling beam column after shelving.
Preferably, pouring build floor and composite beam connecting portion in step (5) and composite beam overlapping cast-in-place part coagulation
Soil, floor parts reserve external prestressing steels lashing hole.
Concrete frame bearing system be current skyscraper, large public building, in industrial premises using than wide
Supporting member.According to the Concrete Structure Design basic principle, 1/10 or so of the general area's span of main beam in frame depth of section,
It can satisfy the design requirement of ultimate limit state and ultimate service state.According to national sector standard " assembly concrete
Structure technology regulation " regulation, design theory and the cast-in-place concrete structure design theory phase of prefabricated assembled concrete structure
Together, this just makes prefabricated assembled concrete structure in the building for there is large span to require, and needs larger member section, as above
Extra large oriental sports centre bottom concrete frame span reaches 42 meters, needs according to normal concrete framework beam section
3-4 meters or so, common prefabricated assembled concrete structure is such as used, brings very big difficulty to component conveying, on-site hoisting.In vivo
Post-tensioned prestressing construction method, due to needing pre-buried bellows, steel strand beam, the setting programs such as anchoring system and grouting,
Construction technology is complex, is unfavorable for the industrial requirement of the Mechanized Processing of component, be generally used for such as 25 meters of super-span with
On important feature.And pretensioning prestressed concrete structure eliminates the construction technology of post stretching complexity, eliminates prestressing force
Anchoring system transmits prestressing force according to the bonding of presstressed reinforcing steel and concrete, and construction technology is simple, is suitble to millworkization processing.It is right
Pre-tensioning system prefabricated components are proposed in the Vierendeel girder of 15-25 rice compared with large span or so.The present invention is using body in assembled body
Outer dual-prestressed system concrete composite beam frame and floorboard and come according to method for applying prestressing force in span scope selective body
The problems such as solving production, the transportation, installation and use of super-span concrete structure.
The invention has the benefit that
(1) it can reduce the sectional dimension of prefabricated components, meet the requirement of production, transport and installation.
Since prestressing force makes component generate compression, so the cracking and the fracture width under load that have delayed component, increase
The rigidity of component is added, the antiarch that same prestressing force generates component also reduces the amount of deflection of component, these advantages of prestressing force
Component can be made to reduce sectional dimension, dual-prestressed system can preferably play prestressed effect.
(2) the efficient production that prefabricated components may be implemented in pre-tensioning system is operated with mechanization.
Pre-tensioning system is the prestressed reinforcement of tensioning before casting concrete component, and the deformed bar of tensioning is fixed temporarily
On pedestal or punching block, it is (general not less than design strength grade to reach some strength to concrete for then casting concrete again
75%) when, guaranteeing that presstressed reinforcing steel and concrete there are enough cohesive forces, loosen presstressed reinforcing steel, by means of concrete and presstressed reinforcing steel
Bonding, make concrete generate compressive pre-stress.Pre-tensioning system construction is simple leans on cohesive force from anchor, it is not necessary to expend special anchorage, temporarily
Anchorage may be reused, and economy, quality are stablized when mass production, the factorial production especially suitable for middle-size and small-size component.
(3) the whole anti-seismic performance of structure can be increased.
The use of external prestressing steels can make structure under routine use or small shake effect, by connection between component
Effect can make structure keep globality；When structure earthquake higher by earthquake intensity, do not damaged substantially in structural elements same
When, join domain itself generates moderate finite deformation with dissipation energy, thus achievees the purpose that increase structure ductility.
(4) the progressive collapse-resisting ability of structure can be improved
When structure, which meets with violent earthquake, generates moderate finite deformation, precast beam makes due to having the package of external prestressing steels and constraint
Precast beam will not fall off in column bracket and destroy whole Pin frame all, and then improve the progressive collapse-resisting ability of total.
(5) the efficient utilization of the prestressing technique of Design and Build may be implemented
The prestressed application of composite beam of the present invention can be designed according to the different phase of production, installation.In the construction stage, in advance
The design of stress rib meets construction stage load-bearing requirements, remaining load can be after composite beam molding, by external prestressing steels
It undertakes, greatly improves the high efficiency that presstressed reinforcing steel uses, it is especially beneficial for bridgeing across heavy structure greatly.
(6) meet the requirement of construction industry future developing trend.
Fabricated construction is currently in initial stage, due to not solving there are also many technical problems, currently mainly across
Degree is smaller, uses in the more intensive residential housing of vertical supporting member.But with the disappearance of China human mortality bonus, building trade
Generalling use prefabricated assembled is an irreversible trend, and assembled architecture system is following inevitable to big across, heavy duty greatly
The development of type public building, then the ten big technologies that prestressing technique promotes and applies always as the Ministry of Construction first is that being suitble to the development
The indispensable technology type of trend.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is internal post-tensioning block schematic illustration；
Fig. 2 is beam section detail drawing at 1-1 in Fig. 1；
Fig. 3 is beam section detail drawing at 2-2 in Fig. 1；
Fig. 4 is prestress system detail drawing in Fig. 1；
Fig. 5 is interior joint frame detail drawing in Fig. 1；
Fig. 6 is margin knot point frame detail drawing in Fig. 1；
In figure, 1, overlapping layers；2, upper longitudinal bar；3, stirrup；4, prefabricated post external prestressing steels reserving hole channel；5, external prestressing
Muscle；6, post stretching prestressing with bond muscle；7, lower part longitudinal reinforcement；8, waist muscle in beam；9, prefabricated column bracket；10, prefabricated post；11,
External prestressing steels anchor plate；12, external prestressing steels anchorage；13, the beam column cementation of fissures；14, waist muscle tension rib；15, it answers in advance in vitro
Power muscle transfer；16, post-tensioning prestressing with bond muscle anchorage；17, Prefabricated superposed beam.
Fig. 7 is first to open block schematic illustration in vivo；
Fig. 8 is beam section detail drawing at 1-1 in Fig. 7；
Fig. 9 is beam section detail drawing at 2-2 in Fig. 7；
Figure 10 is prestress system detail drawing in Fig. 7；
Figure 11 is interior joint frame detail drawing in Fig. 7；
Figure 12 is margin knot point frame detail drawing in Fig. 7；
In figure, 1, overlapping layers；2, upper longitudinal bar；3, stirrup；4, prefabricated post external prestressing steels reserving hole channel；5, external prestressing
Muscle；6, pre-tensioning system prestressing with bond muscle；7, lower part longitudinal reinforcement；8, waist muscle in beam；9, prefabricated column bracket；10, prefabricated post；11,
External prestressing steels anchor plate；12, external prestressing steels anchorage；13, beam column joint filling；14, waist muscle tension rib；15, it answers in advance in vitro
Power muscle transfer；16, Prefabricated superposed beam.
Figure 13 is internal post-tensioning floor system schematic diagram；
Figure 14 is flooring cross-section diagram in Figure 13；
In figure, 1, prefabricated board；2, top hogging moment indulges muscle；3, top hogging moment indulges ledges stud；4, prefabricated post external prestressing
Muscle reserving hole channel；5, external prestressing steels；6, the direction x lower part longitudinal reinforcement；7, Y-direction lower part longitudinal reinforcement；8, precast beam；9,
Prefabricated column bracket；10, the beam slab cementation of fissures；11, external prestressing steels anchor plate；12, external prestressing steels anchorage；13, plate lower body
External prestressed muscle transfer；14, external prestressing myospasm in plate top is to device；15, external prestressing steels reserving hole in plate；
16, post stretching delayed bonding prestressed tendon in plate；17, post stretching delayed bonding prestressed tendon anchorage in plate.
Figure 15 is first to open floor system schematic diagram in vivo；
Figure 16 is flooring cross-section diagram in Figure 15；
Figure 17 is that the theory of plasticity designs mid-side node detail drawing in Figure 15；
In figure, 1, prefabricated board；2, top hogging moment indulges muscle；3, top hogging moment indulges ledges stud；4, prefabricated post external prestressing
Muscle reserving hole channel；5, external prestressing steels；6, the direction x lower part longitudinal reinforcement；7, Y-direction lower part longitudinal reinforcement；8, precast beam；9,
Prefabricated column bracket；10, the beam slab cementation of fissures；11, external prestressing steels anchor plate；12, external prestressing steels anchorage；13, plate lower body
External prestressed muscle transfer；14, external prestressing myospasm in plate top is to device；15, external prestressing steels reserving hole in plate；
16, pretensioned prestressing muscle in plate.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
With reference to the accompanying drawing and specific embodiment is further described application principle of the invention.
Embodiment 1, a kind of dual-prestressed overlapping concrete frame of large span, including band bracket prefabricated post, the prefabricated post
Support composite beam, the composite beam includes two parts, first part be factory's production first open or post-tensioned prestressing pre-erection,
This part can carry out regular reinforcement and answer in advance according to considering to undertake prefabricated components self weight, construction loads and part working load
The setting of power muscle；Second part is the stretch-draw anchor of cast-in-place lamination portion concrete and external prestressing steels, this part can examine
Consider the remaining load configuration external prestressing steels that need to be undertaken of pre-erection.
In the present embodiment, if the presstressed reinforcing steel of Fig. 7-12, prestressing force pre-erection use pre-tensioning system, according to applying for pre-tensioning system
Work technique is completed in factory's batch, and presstressed reinforcing steel uses high tensile reinforcement, steel strand wires.
In the present embodiment, if the presstressed reinforcing steel of Fig. 1-6, prestressing force pre-erection use post stretching, post-tensioned prestressing is prefabricated
It is partially made in factory, the tensioning of presstressed reinforcing steel is anchored at factory's completion, and presstressed reinforcing steel uses unbonded prestressing tendon, delays and glue
Tie presstressed reinforcing steel and bonded prestressed tendon.
Another aspect of the present invention provides a kind of building according to made of above-mentioned large span dual-prestressed overlapping concrete frame
Face system.
In the present embodiment, including composite beam, dual-prestressed floor system superimposed sheet, the dual-prestressed floor system overlapping
Composite beam at plate needs band bracket, remaining production is the same as upper frame frame composite beam.
In the present embodiment, such as Figure 13-17, the production of dual-prestressed floor system superimposed sheet requires to be same as above, and presstressed reinforcing steel is pressed
It is equally spaced according to design requirement, theory of plasticity design is such as pressed when floorboard is located at end bay, external prestressing steels can be in beam bottom
Anchoring.
The third aspect of the present invention provides a kind of construction according to the above-mentioned dual-prestressed overlapping concrete frame of large span
Method, comprising the following steps:
(1) prefabricated post, the lashing hole including bracket and reserved external prestressing steels in prefabricated post are produced；
(2) composite beam pre-erection is produced, the laying of binding, presstressed reinforcing steel including regular reinforcement, concrete pour and first
Open the cutting of prefabricated components；
(3) in-site installation prefabricated post, upper and lower level column take grout sleeve to connect；
(4) in-site installation composite beam pre-erection；
(5) it is laid with template；
(6) when cast-in-place concrete intensity reaches external prestressing steels tensioning requirement, external prestressing steels are laid with；
(7) it tensioning external prestressing steels and anchors, system construction finishes.
In the present embodiment, in step (4), by Prefabricated pre-tensioned presstressed reinforcing steel pre-erection shelve on prefabricated column bracket,
Bracket surface laying adhesive mortar is levelling before shelving, with gap between adhesive mortar filling beam column after shelving.
In the present embodiment, in step (5), pours build floor and composite beam connecting portion and composite beam overlaps cast-in-place part coagulation
Soil, floor parts reserve external prestressing steels lashing hole.
Concrete frame bearing system be current skyscraper, large public building, in industrial premises using than wide
Supporting member.According to the Concrete Structure Design basic principle, 1/10 or so of the general area's span of main beam in frame depth of section,
It can satisfy the design requirement of ultimate limit state and ultimate service state.According to national sector standard " assembly concrete
Structure technology regulation " regulation, design theory and the cast-in-place concrete structure design theory phase of prefabricated assembled concrete structure
Together, this just makes prefabricated assembled concrete structure in the building for there is large span to require, and needs larger member section, as above
Extra large oriental sports centre bottom concrete frame span reaches 42 meters, needs according to normal concrete framework beam section
3-4 meters or so, common prefabricated assembled concrete structure is such as used, brings very big difficulty to component conveying, on-site hoisting.In vivo
Post-tensioned prestressing construction method, due to needing pre-buried bellows, steel strand beam, the setting programs such as anchoring system and grouting,
Construction technology is complex, is unfavorable for the industrial requirement of the Mechanized Processing of component, be generally used for such as 25 meters of super-span with
On important feature.And pretensioning prestressed concrete structure eliminates the construction technology of post stretching complexity, eliminates prestressing force
Anchoring system transmits prestressing force according to the bonding of presstressed reinforcing steel and concrete, and construction technology is simple, is suitble to millworkization processing.It is right
Pre-tensioning system prefabricated components are proposed in the Vierendeel girder of 15-25 rice compared with large span or so.The present invention is using body in assembled body
Outer dual-prestressed system concrete composite beam frame and floorboard and come according to method for applying prestressing force in span scope selective body
The problems such as solving production, the transportation, installation and use of super-span concrete structure.
Certainly, above description is also not limited to the example above, technical characteristic of the present invention without description can by or
It is realized using the prior art, details are not described herein；Above embodiments and attached drawing are only used to illustrate the technical scheme of the present invention not
It is limitation of the present invention, is described the invention in detail referring to preferred embodiment, the ordinary skill people of this field
Member is it should be appreciated that variation, remodeling, the addition that those skilled in the art are made within the essential scope of the present invention
Or replacement also should belong to claims of the invention without departure from spirit of the invention.
Claims (9)
1. a kind of dual-prestressed composite frame of large span, it is characterised in that: including band bracket prefabricated post, the prefabricated post support is folded
Close beam, the composite beam includes two parts, first part be factory's production first open or post-tensioned prestressing pre-erection, this part
Can be according to considering to undertake prefabricated components self weight, construction loads and part working load carry out regular reinforcement and presstressed reinforcing steel
Setting；Second part is the stretch-draw anchor of cast-in-place lamination portion concrete and external prestressing steels, this part can be considered prefabricated
The load that the need of some residual undertake configures external prestressing steels.
2. the dual-prestressed composite frame of a kind of large span according to claim 1, it is characterised in that: prestressing force pre-erection
Presstressed reinforcing steel use pre-tensioning system, according to pre-tensioning system construction technology factory batch complete, presstressed reinforcing steel using high tensile reinforcement,
Steel strand wires.
3. the dual-prestressed composite frame of a kind of large span according to claim 1, it is characterised in that: prestressing force pre-erection
Presstressed reinforcing steel use post stretching, post-tensioned prestressing pre-erection makes in factory, and the tensioning of presstressed reinforcing steel, to be anchored at factory complete
At presstressed reinforcing steel uses unbonded prestressing tendon, delayed bonding prestressed tendon and bonded prestressed tendon.
4. floor system made of a kind of dual-prestressed composite frames of large span described in any item according to claim 1~3.
5. floor system made of the dual-prestressed composite frame of large span according to claim 4, it is characterised in that: including
Composite beam, dual-prestressed floor system superimposed sheet, the composite beam at the dual-prestressed floor system superimposed sheet need band bracket,
Remaining production is the same as upper frame frame composite beam.
6. floor system made of the dual-prestressed composite frame of large span according to claim 5, it is characterised in that: double pre-
The production of stress floor system superimposed sheet requires to be same as above, and presstressed reinforcing steel is equally spaced according to design requirement, when floorboard is located at
Theory of plasticity design is such as pressed when end bay, external prestressing steels can be anchored in beam bottom.
7. a kind of construction method of the dual-prestressed composite frames of large span described in any item according to claim 1~3, feature
It is: the following steps are included:
(1) prefabricated post, the lashing hole including bracket and reserved external prestressing steels in prefabricated post are produced；
(2) composite beam pre-erection is produced, the laying of binding, presstressed reinforcing steel including regular reinforcement, concrete pour and first
Open the cutting of prefabricated components；
(3) in-site installation prefabricated post, upper and lower level column take grout sleeve to connect；
(4) in-site installation composite beam pre-erection；
(5) it is laid with template；
(6) when cast-in-place concrete intensity reaches external prestressing steels tensioning requirement, external prestressing steels are laid with；
(7) it tensioning external prestressing steels and anchors, system construction finishes.
8. a kind of construction method of the dual-prestressed composite frame of large span according to claim 7, it is characterised in that: step
(4) in, by Prefabricated pre-tensioned presstressed reinforcing steel pre-erection shelve on prefabricated column bracket, before shelving bracket surface be laid with bonding
Mortar levelling, with gap between adhesive mortar filling beam column after shelving.
9. a kind of construction method of the dual-prestressed composite frame of large span according to claim 7, it is characterised in that: step
(5) in, build floor and composite beam connecting portion is poured and composite beam overlaps cast-in-place part concrete, floor parts are reserved to answer in advance in vitro
Power muscle lashing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473439.0A CN109811948A (en) | 2018-12-04 | 2018-12-04 | A kind of dual-prestressed composite frame of large span and floor system and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473439.0A CN109811948A (en) | 2018-12-04 | 2018-12-04 | A kind of dual-prestressed composite frame of large span and floor system and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109811948A true CN109811948A (en) | 2019-05-28 |
Family
ID=66601907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811473439.0A Pending CN109811948A (en) | 2018-12-04 | 2018-12-04 | A kind of dual-prestressed composite frame of large span and floor system and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109811948A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670721A (en) * | 2019-10-15 | 2020-01-10 | 广州瀚阳工程咨询有限公司 | Implementation method of large-span prestressed concrete assembly type building frame structure |
| CN110863567A (en) * | 2019-11-26 | 2020-03-06 | 东北林业大学 | Can regulate and control prestressing force steel filling plate bolted connection beam column device |
| CN111101629A (en) * | 2020-01-02 | 2020-05-05 | 中国矿业大学 | Cantilever platform-FRP sheet material connecting structure and method for precast concrete beam plate system |
| CN111608313A (en) * | 2020-05-21 | 2020-09-01 | 南通四建集团有限公司 | Tensioning node of T-beam wing plate under post-tensioning unbonded prestressed rib plate and construction method |
| CN114164938A (en) * | 2021-09-23 | 2022-03-11 | 郑州辉昂装饰设计工程有限公司 | Self-balancing assembly type frame thin-shell structure system and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1544773A (en) * | 2003-11-14 | 2004-11-10 | 建研科技股份有限公司 | Secondary prestress assembly integral concrete slab and construction process |
| CN1730260A (en) * | 2005-08-10 | 2006-02-08 | 上海市政工程设计研究院 | Method for making concrete beam |
| CN105369729A (en) * | 2015-12-11 | 2016-03-02 | 河南省交通规划设计研究院股份有限公司 | External prestressing corrugated steel web T-shaped beam and construction method |
| CN207553438U (en) * | 2017-12-05 | 2018-06-29 | 上海同吉建筑工程设计有限公司 | Tension prestress concrete composite beam altogether |
-
2018
- 2018-12-04 CN CN201811473439.0A patent/CN109811948A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1544773A (en) * | 2003-11-14 | 2004-11-10 | 建研科技股份有限公司 | Secondary prestress assembly integral concrete slab and construction process |
| CN1730260A (en) * | 2005-08-10 | 2006-02-08 | 上海市政工程设计研究院 | Method for making concrete beam |
| CN105369729A (en) * | 2015-12-11 | 2016-03-02 | 河南省交通规划设计研究院股份有限公司 | External prestressing corrugated steel web T-shaped beam and construction method |
| CN207553438U (en) * | 2017-12-05 | 2018-06-29 | 上海同吉建筑工程设计有限公司 | Tension prestress concrete composite beam altogether |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670721A (en) * | 2019-10-15 | 2020-01-10 | 广州瀚阳工程咨询有限公司 | Implementation method of large-span prestressed concrete assembly type building frame structure |
| CN110863567A (en) * | 2019-11-26 | 2020-03-06 | 东北林业大学 | Can regulate and control prestressing force steel filling plate bolted connection beam column device |
| CN111101629A (en) * | 2020-01-02 | 2020-05-05 | 中国矿业大学 | Cantilever platform-FRP sheet material connecting structure and method for precast concrete beam plate system |
| CN111608313A (en) * | 2020-05-21 | 2020-09-01 | 南通四建集团有限公司 | Tensioning node of T-beam wing plate under post-tensioning unbonded prestressed rib plate and construction method |
| CN114164938A (en) * | 2021-09-23 | 2022-03-11 | 郑州辉昂装饰设计工程有限公司 | Self-balancing assembly type frame thin-shell structure system and construction method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109811948A (en) | A kind of dual-prestressed composite frame of large span and floor system and construction method | |
| US11149390B2 (en) | Prefabricated, prestressed bridge module | |
| CN109469202A (en) | Prestressed assembly integral concrete frame structure system and construction method thereof | |
| JP2004520511A (en) | Prestressed synthetic truss girder and method of manufacturing the same | |
| KR101286557B1 (en) | Steel-concrete composite beam for reducing story height and flatplate structure | |
| US8453406B2 (en) | Precast composite structural girder and floor system | |
| CN207553438U (en) | Tension prestress concrete composite beam altogether | |
| KR20060024850A (en) | Steel-concrete sandwitch type hybrid beam and high strength hybrid structure system using the same | |
| KR101208231B1 (en) | Method for constructing continuous supporting structure of corrugated steel web PSC beam | |
| WO2011012974A2 (en) | Method for manufacturing a precast composite steel and concrete beam and a precast composite steel and concrete beam made according to said method | |
| US8381485B2 (en) | Precast composite structural floor system | |
| KR101913069B1 (en) | Prestressed Steel-Concrete Composite Girder and Method for Fabricating thereof | |
| RU2638597C2 (en) | System and method for two-axle assembly light-weight concrete slab | |
| US3835607A (en) | Reinforced girders of steel and concrete | |
| JP2003213623A6 (en) | Bridge superstructure | |
| CN104264782B (en) | Assembled integral pre-stressed concrete frame structure and construction method thereof | |
| KR100376162B1 (en) | Advanced TEC beam with unsymmetric steel section | |
| CN217268348U (en) | Hybrid prestressed composite beam | |
| JPH05340031A (en) | Prestressed concrete girder and its manufacture | |
| CN107882233A (en) | A kind of unit floor of assembled flatslab construction | |
| KR20100125504A (en) | Prestress concrete composite with prestress non-introducing portion selectively installed at upper and lower portions to which compression force is applied, manufacturing method thereof, slab structure and construction method using the same | |
| CN109797848A (en) | Bean column node and its construction method with additional muscle | |
| KR101387232B1 (en) | Moment framework system | |
| CN110924523B (en) | Steel plate interface flexible connection structure and connection method for reinforced concrete column and foundation | |
| ROMERO et al. | Precast prestressed concrete |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190528 |
|
| RJ01 | Rejection of invention patent application after publication |