CN103806538A - Precast reinforced concrete member - Google Patents
Precast reinforced concrete member Download PDFInfo
- Publication number
- CN103806538A CN103806538A CN201410084918.9A CN201410084918A CN103806538A CN 103806538 A CN103806538 A CN 103806538A CN 201410084918 A CN201410084918 A CN 201410084918A CN 103806538 A CN103806538 A CN 103806538A
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- CN
- China
- Prior art keywords
- reinforced concrete
- precast reinforced
- concrete structure
- longitudinal fluting
- sides
- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
- E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
- E04B1/043—Connections specially adapted therefor
- E04B1/046—Connections specially adapted therefor using reinforcement loops protruding from the elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8611—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf
- E04B2/8617—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers being embedded in at least one form leaf with spacers being embedded in both form leaves
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
- E04B2/8623—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers and at least one form leaf being monolithic
- E04B2/8629—Walls made by casting, pouring, or tamping in situ made in permanent forms with spacers and at least one form leaf being monolithic with both form leaves and spacers being monolithic
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention relates to a precast reinforced concrete member, and belongs to the technical field of precast reinforced concrete structural members. Longitudinal grooves are formed in the lateral sides of the precast reinforced concrete member, transverse grooves are formed in the lateral sides of thin plates on two sides of the longitudinal grooves, reinforcing steel bars are connected onto two lateral sides of the transverse grooves, and the reinforcing steel bars or reinforcing steel bar rings are hung on the reinforcing steel bars. The precast reinforced concrete member disclosed by the invention enhances the industrial level of building structures, improves the mechanical property and saves resources, and can be applied to various wall bearing structures.
Description
Technical field
The invention belongs to prefabricated reinforced concrete structure component technology field, relate in particular to a kind of precast reinforced concrete structure that is applicable to cast in place and precast construction.
Background technology
In monolithic reinforced concrete structure work progress, field fabrication is many, and wet trade is many, has the intermediate links such as a large amount of form work engineerings, scaffolding work, waste resource, contaminated environment; Practitioner's quality, job site environment etc. are very large on build guality impact, bring the problems such as building performance, quality and durability.Change the present situation of monolithic reinforced concrete structure, should greatly develop precast concrete.The primary structure member of precast concrete is made in factory, and production efficiency is high, quality good, and saving resource and the energy, be conducive to sustainable development.Adopting precast concrete is the direction of industrialization of construction industry development, is also the direction of housing industrialization development.
In precast concrete, between prefabricated units, have horizontal joint, vertical abutment joint etc., the stress performance of seam has determined integrality performance of the structure.Between existing prefabricated units, seam connects comparatively complicated.
Summary of the invention
The invention provides a kind of precast reinforced concrete structure, can facilitate the installation of precast reinforced concrete structure to be connected with reinforcing bar, improve the stress performance of seam, improve building structure industrialized level.
For achieving the above object, the present invention proposes a kind of precast reinforced concrete structure, and this member side has longitudinal fluting, and there is concrete thin plates longitudinal fluting both sides; The side of described longitudinal fluting both sides thin plate has transverse concave groove, and the two sides of transverse concave groove are connected with reinforcing bar, and reinforcing bar is fully anchoring in precast reinforced concrete structure; On described reinforcing bar, hang with reinforcing bar or reinforced steel bar ring; Described reinforced steel bar ring is closed stirrup or welded reinforcement ring.Because the reinforcing bar between precast reinforced concrete structure can be anchored in transverse concave groove or longitudinal fluting, therefore can reduce the distance between precast unit, reduce template amount.Reinforced steel bar ring hangs on precast reinforced concrete structure, and convenient transportation, installation, be conveniently connected with other member reinforcing steel bars.
Between the longitudinal fluting both sides thin plate of described precast reinforced concrete structure side, be connected with row or the above reinforcing bar of row; Or be connected with one or more steel bar girders between the thin plate of longitudinal fluting both sides; Or between the thin plate of described longitudinal fluting both sides, be connected with one or a web perforate light gauge cold-formed steel shape.Adopt reinforcing bar connect concrete thin plates, can improve precast concrete and after water the globality between the rear pouring concrete in longitudinal fluting; Reinforcing bar, in longitudinal fluting, is conveniently made and transportation; Conveniently in longitudinal fluting arrange that reinforcing bar connects together prefabricated units, for example, by placing reinforced steel bar ring and described reinforcing bar joins mutually, concreting, different prefabricated units can be linked together.Link one or more steel bar girders or one or a web perforate light gauge cold-formed steel shape at longitudinal fluting both sides thin plate, can reach identical technique effect.The chord member of steel bar girder is embedded in the thin plate of described longitudinal fluting both sides, and web member connects concrete thin plates.The edge of a wing of light gauge cold-formed steel shape is embedded in the thin plate of longitudinal fluting both sides.It is Z-shaped or I-shaped etc. that its cross section can be C shape.
Described precast reinforced concrete structure has longitudinal hole, can square hole, circular hole etc.In order to water after increasing in the globality of longitudinal hole inner concrete, longitudinally between hole and longitudinal fluting, have horizontal hole.In the time that precast reinforced concrete structure does not have longitudinal hole, between its both sides longitudinal fluting, horizontal hole can be set.
The present invention compared with prior art has following advantage.
There is longitudinal fluting precast reinforced concrete structure of the present invention side, and the side of longitudinal fluting both sides thin plate has transverse concave groove, reinforcing bar connect transverse concave groove both sides, can improve precast concrete and after water the globality between the rear pouring concrete in longitudinal fluting; Connecting reinforcement between precast reinforced concrete structure can be anchored in longitudinal fluting, or is anchored in the transverse concave groove of side of longitudinal fluting both sides thin plate, reduces the spacing between precast reinforced concrete structure.In the time having reinforcing bar or steel bar girder etc. to connect concrete thin plates between longitudinal fluting, can improve the globality between the rear pouring concrete in precast concrete and longitudinal fluting; Reinforcing bar, in longitudinal fluting, is conveniently made and transportation.Connecting reinforcement between prefabricated units stretches in longitudinal fluting, has improved the globality between prefabricated units; Connecting reinforcement between prefabricated units forms cage of reinforcement with the reinforcing bar that is connected concrete thin plates, has guaranteed connection integrity.Precast reinforced concrete structure of the present invention hangs with reinforced steel bar ring or reinforcing bar, and reinforced steel bar ring or reinforcing bar are hinged on prefabricated units, can freely adjust within the specific limits position, facilitates reinforcing bar connection between transportation, installation and the prefabricated units of precast reinforced concrete structure etc.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment of the present invention.
Fig. 2 is the schematic diagram of the another kind of embodiment of the present invention.
Fig. 3 is the schematic diagram of the another kind of embodiment of the present invention.
Fig. 4 is the schematic diagram of the another kind of embodiment of the present invention.
Fig. 5 is the schematic diagram of the another kind of embodiment of the present invention.
Fig. 6 is the schematic diagram of the another kind of embodiment of the present invention.
Fig. 7 is the schematic diagram of the another kind of embodiment of the present invention.
Fig. 8 is the schematic diagram of the another kind of embodiment of the present invention.
Fig. 9 is the schematic diagram of the another kind of embodiment of the present invention.
Figure 10 is the schematic diagram of the another kind of embodiment of the present invention.
Mark implication in accompanying drawing is: the longitudinal hole 8 of 1 precast reinforced concrete structure 2 longitudinal fluting 3 concrete thin plates 4 transverse concave groove 5 reinforcing bar 6 reinforced steel bar ring 7 connects the reinforcing bar of the horizontal hole 12 precast reinforced concrete structures extensions of reinforcing bar 9 steel bar girder 10 light gauge cold-formed steel shape 11 of concrete thin plates.
The specific embodiment
Below in conjunction with drawings and Examples, precast reinforced concrete structure of the present invention is described in detail.
A kind of embodiment of the precast reinforced concrete structure that the present invention proposes, as Fig. 1, there is longitudinal fluting 2 precast reinforced concrete structure 1 side, there is concrete thin plates 3 longitudinal fluting both sides, the side of concrete thin plates 3 has transverse concave groove 4, the two sides of transverse concave groove 4 are connected with reinforcing bar 5, hang with reinforced steel bar ring 6 on reinforcing bar 5.In another embodiment, as Figure 10, there is longitudinal fluting 2 precast reinforced concrete structure 1 side, there is concrete thin plates 3 longitudinal fluting both sides, the side of one side concrete thin plates 3 has transverse concave groove 4, and the two sides of transverse concave groove 4 are connected with reinforcing bar 5, hangs with reinforcing bar 12 on reinforcing bar 5.The size of longitudinal fluting 2 and transverse concave groove 4 requires to determine according to stressed, making, construction etc., and cross section is rectangle, trapezoidal etc.Reinforcing bar 5 is fully anchoring in precast reinforced concrete structure 1.Reinforced steel bar ring is closed stirrup or welded reinforcement ring.In order to increase globality, the cross section of longitudinal fluting 2 can be trapezoidal, as Fig. 2, or other shapes.
The another kind of embodiment of the precast reinforced concrete structure that the present invention proposes, as Fig. 2, precast reinforced concrete structure 1 has 1 longitudinal hole 7; Or have an above longitudinally hole 7, as Fig. 3.In order to water after increasing in the globality of longitudinal hole 7 inner concretes, longitudinally between hole and longitudinal fluting, have horizontal hole 11, as Fig. 8.In order to increase the globality of rear pouring concrete and precast concrete, have horizontal hole 11 at 2 of the longitudinal flutings of precast reinforced concrete structure 1, as Fig. 9.
In the another kind of embodiment of the precast reinforced concrete structure that the present invention proposes, as Fig. 4,3 of concrete thin plates are connected with a row reinforcing bar 8; Or 3 of concrete thin plates are connected with the above reinforcing bar 8 of row, as Fig. 5.In another embodiment of the invention, as Fig. 6,3 of concrete thin plates are connected with steel bar girder 9, and the chord member of steel bar girder 9 is embedded in described longitudinal fluting both sides thin plate 3, and web member connects concrete thin plates 3.In another embodiment of the invention, as Fig. 7,3 of concrete thin plates are connected with web perforate light gauge cold-formed steel shape 10, and the edge of a wing of light gauge cold-formed steel shape 10 is embedded in the thin plate of longitudinal fluting both sides, and it is Z-shaped or I-shaped etc. that its cross section can be C shape.
Claims (8)
1. a precast reinforced concrete structure, this member side has longitudinal fluting, it is characterized in that, and the side of described longitudinal fluting both sides thin plate has transverse concave groove, and the two sides of transverse concave groove are connected with reinforcing bar, hang with reinforcing bar or reinforced steel bar ring on described reinforcing bar.
2. precast reinforced concrete structure according to claim 1, is characterized in that, is connected with row or the above reinforcing bar of row between the thin plate of described longitudinal fluting both sides; Or be connected with one or more steel bar girders between the thin plate of longitudinal fluting both sides; Or between the thin plate of described longitudinal fluting both sides, be connected with one or a web perforate light gauge cold-formed steel shape.
3. precast reinforced concrete structure according to claim 1, is characterized in that, described precast reinforced concrete structure has longitudinal hole.
4. according to the precast reinforced concrete structure described in claim 1 or 3, it is characterized in that, between described longitudinal hole and longitudinal fluting, have horizontal hole, or have horizontal hole between described longitudinal fluting.
5. precast reinforced concrete structure according to claim 2, is characterized in that, the chord member of described steel bar girder is embedded in the thin plate of described longitudinal fluting both sides.
6. precast reinforced concrete structure according to claim 2, is characterized in that, the edge of a wing of described light gauge cold-formed steel shape is embedded in the thin plate of described longitudinal fluting both sides.
7. precast reinforced concrete structure according to claim 2, is characterized in that, described light gauge cold-formed steel shape cross section is that C shape is Z-shaped or I-shaped.
8. precast reinforced concrete structure according to claim 1, is characterized in that, described reinforced steel bar ring is closed stirrup or welded reinforcement ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084918.9A CN103806538B (en) | 2014-03-10 | 2014-03-10 | A kind of precast reinforced concrete structure |
| PCT/CN2015/073763 WO2015135442A1 (en) | 2014-03-10 | 2015-03-06 | Prefabricated reinforced concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410084918.9A CN103806538B (en) | 2014-03-10 | 2014-03-10 | A kind of precast reinforced concrete structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103806538A true CN103806538A (en) | 2014-05-21 |
| CN103806538B CN103806538B (en) | 2016-08-17 |
Family
ID=50703884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410084918.9A Active CN103806538B (en) | 2014-03-10 | 2014-03-10 | A kind of precast reinforced concrete structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103806538B (en) |
| WO (1) | WO2015135442A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015135442A1 (en) * | 2014-03-10 | 2015-09-17 | 初明进 | Prefabricated reinforced concrete member |
| CN111851861A (en) * | 2020-07-30 | 2020-10-30 | 华南理工大学 | Partially prefabricated reinforced structure of existing H-shaped steel column and construction process thereof |
| US11248383B2 (en) | 2018-09-21 | 2022-02-15 | Cooper E. Stewart | Insulating concrete form apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107030877B (en) * | 2017-05-20 | 2024-04-02 | 西咸新区矩阵住宅工业有限公司 | Steel and concrete combined structure steel moulding bed for prefabricated components and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09317081A (en) * | 1996-05-28 | 1997-12-09 | Misawa Ceramic Chem Co Ltd | Reinforcing bar arranging structure of concrete panel for building |
| WO2002018725A1 (en) * | 2000-08-26 | 2002-03-07 | Kim, Kwang-Jin | Crux-bar concrete structure |
| CN102011442A (en) * | 2009-09-07 | 2011-04-13 | 初明进 | Light steel-concrete combination structure shear wall and manufacturing method thereof |
| CN102312481A (en) * | 2010-06-29 | 2012-01-11 | 湖南华廷筑邦建材有限公司 | Reinforced concrete prefabricated member |
| CN102808450A (en) * | 2012-08-28 | 2012-12-05 | 初明进 | Assembled monolithic shear wall building structure and construction method thereof |
| CN102864855A (en) * | 2012-09-19 | 2013-01-09 | 初明进 | T-shaped precast concrete wall connection |
| CN203247698U (en) * | 2013-05-16 | 2013-10-23 | 叶新 | Pre-cast concrete structural member capable of being horizontally connected |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB606691A (en) * | 1945-10-29 | 1948-08-18 | Ernest Goodall Malthouse | Improvements in or relating to prefabricated slabs |
| CN1062931C (en) * | 1993-03-24 | 2001-03-07 | 建筑方法有限公司 | Building panel and buildings using the panel |
| JP2668510B2 (en) * | 1994-08-26 | 1997-10-27 | 矢作建設工業株式会社 | Method of integrally forming columns and beams in the PC wall method |
| CN2370077Y (en) * | 1999-01-26 | 2000-03-22 | 白世魁 | Pouring connection assembled house prefabricated plate |
| CN102296754B (en) * | 2011-05-19 | 2016-07-13 | 黑龙江宇辉新型建筑材料有限公司 | Horizontal bar reinforcement connecting element for precast concrete elements and connection construction method |
| CN102787681B (en) * | 2012-09-07 | 2014-04-09 | 初明进 | Connecting structure of prefabricated concrete wall body |
| CN203200949U (en) * | 2012-09-19 | 2013-09-18 | 初明进 | T-type prefabricated concrete wall connecting node |
| CN203452228U (en) * | 2013-08-02 | 2014-02-26 | 初明进 | Frame-shear wall architectural structure |
| CN103806538B (en) * | 2014-03-10 | 2016-08-17 | 初明进 | A kind of precast reinforced concrete structure |
-
2014
- 2014-03-10 CN CN201410084918.9A patent/CN103806538B/en active Active
-
2015
- 2015-03-06 WO PCT/CN2015/073763 patent/WO2015135442A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09317081A (en) * | 1996-05-28 | 1997-12-09 | Misawa Ceramic Chem Co Ltd | Reinforcing bar arranging structure of concrete panel for building |
| WO2002018725A1 (en) * | 2000-08-26 | 2002-03-07 | Kim, Kwang-Jin | Crux-bar concrete structure |
| CN102011442A (en) * | 2009-09-07 | 2011-04-13 | 初明进 | Light steel-concrete combination structure shear wall and manufacturing method thereof |
| CN102312481A (en) * | 2010-06-29 | 2012-01-11 | 湖南华廷筑邦建材有限公司 | Reinforced concrete prefabricated member |
| CN102808450A (en) * | 2012-08-28 | 2012-12-05 | 初明进 | Assembled monolithic shear wall building structure and construction method thereof |
| CN102864855A (en) * | 2012-09-19 | 2013-01-09 | 初明进 | T-shaped precast concrete wall connection |
| CN203247698U (en) * | 2013-05-16 | 2013-10-23 | 叶新 | Pre-cast concrete structural member capable of being horizontally connected |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015135442A1 (en) * | 2014-03-10 | 2015-09-17 | 初明进 | Prefabricated reinforced concrete member |
| US11248383B2 (en) | 2018-09-21 | 2022-02-15 | Cooper E. Stewart | Insulating concrete form apparatus |
| CN111851861A (en) * | 2020-07-30 | 2020-10-30 | 华南理工大学 | Partially prefabricated reinforced structure of existing H-shaped steel column and construction process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015135442A1 (en) | 2015-09-17 |
| CN103806538B (en) | 2016-08-17 |
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