CN107060073A - A kind of post stretching partial prestressing PC shear wall slab attachment structures - Google Patents
A kind of post stretching partial prestressing PC shear wall slab attachment structures Download PDFInfo
- Publication number
- CN107060073A CN107060073A CN201710171800.3A CN201710171800A CN107060073A CN 107060073 A CN107060073 A CN 107060073A CN 201710171800 A CN201710171800 A CN 201710171800A CN 107060073 A CN107060073 A CN 107060073A
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- Prior art keywords
- wall body
- cast
- deformed bar
- place
- dry wall
- 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
- 210000003205 muscle Anatomy 0.000 claims abstract description 22
- 230000002787 reinforcement Effects 0.000 claims abstract description 22
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 238000012546 transfer Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E04B1/06—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 the elements being prestressed
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- 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
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
- E04B2001/4192—Connecting devices specially adapted for embedding in concrete or masonry attached to concrete reinforcing elements, e.g. rods or wires
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention discloses a kind of post stretching partial prestressing PC shear wall slab attachment structures, it includes dry wall body, cast-in-place wall body and deformed bar anchored end, the dry wall body is located above deformed bar anchored end, cast-in-place wall body is equipped between dry wall body and deformed bar anchored end and between adjacent dry wall body, horizontal distribution muscle is provided with dry wall body, vertical distributing reinforcement and presstressed reinforcing steel duct, deformed bar is provided with the presstressed reinforcing steel duct, deformed bar one end is fixed in deformed bar anchored end, the other end passes through each dry wall body and cast-in-place wall body, provided with encryption horizontal bar and vertical applied force muscle in cast-in-place wall body, vertical applied force muscle is extended to by the adjacent vertical distributing reinforcement of cast-in-place wall body upper and lower ends and constituted in cast-in-place wall body.The present invention improves the rigidity, ductility and durability of structure, and good integrity, due to prestressed effect, can produce certain frictional force between PC shear wall slab joint faces, can carry out Transfer of Shear with this.
Description
Technical field
The invention belongs to technical field of building construction, and in particular to a kind of post stretching partial prestressing PC shear wall slabs connection
Structure, it is adaptable to the prefabricated assembled shear wall structure system of industrialized building.
Background technology
With the development of building industrialization, in building industrialization structural system prefabricated assembled shear wall system interior joint and
The connection of the longitudinal reinforcement of seam crossing is generally from mechanically connecting, and reinforced bar sleeve grouting connection, reinforcing bar starches anchor overlap joint connection, welding
Connection, colligation overlaps the connected modes such as connection, but in the connecting node seam crossing longitudinal reinforcement joint percentage up to 100%, it is conventional
Colligation overlap joint connecting length is longer, and unqualified, the leakiness of being in the milk that in practice of construction operation welding quality often occurs at the scene,
Simultaneously because joist joint quantity is more, potential safety hazard is easily caused.
Import post stretching partial prestressing and indulge muscle, PC shear wall slabs can be made to indulge the muscle vertically continuous insertion in part, connection section
Cast in situs wet method connection at point, wall body vertical applied force reinforcing bar is overlapped in the region using the mechanical anchor form of Bar Anchorage plate
Connection preferably ensure that the security reliability and operability of crucial connecting node to reduce colligation length.And PC is sheared
Wallboard carries out prestressed stretch-draw, and it is pressured state to make inside whole wallboard, has effectively evaded lacking for concrete in tension low intensity
Point；Due to prestressed effect, certain frictional force can be produced between PC shear wall slab faying faces, can also be cut with this to transmit
Power, stress is more reasonable, safe and reliable, is effectively improved durability, and be easy to construction.Because being precast wall body, wall body
Vertical reinforcement diameter can select 8, and the ratio of reinforcement is 0.25%, it is to avoid because the need in terms of construction formwork erection,《Anti- rule》In it is a diameter of
10 requirement, better economy.
In terms of historical background, " PC buildings " is precast concrete (Precast-Concrete) and prestressed concrete
（Prestressed-Concrete）The product that technology is combined, includes numerous areas content.It can be said that prefabricated is to realize
Industrialization, prestressing force then can generally improve durability.Present invention introduces post-stressed concept, PC designs are agreed with general
Read, specific stress safe operation is reliable, with boundless application prospect.
The content of the invention
It is an object of the invention to provide a kind of reliable post stretching partial prestressing PC shear wall slabs of stress safe operation
Attachment structure.
The present invention is adopted the technical scheme that：A kind of post stretching partial prestressing PC shear wall slab attachment structures, it includes
Dry wall body, cast-in-place wall body and deformed bar anchored end, the dry wall body are located above deformed bar anchored end, pre-
The cast-in-place wall body is equipped between wall body processed and deformed bar anchored end and between adjacent dry wall body, it is described prefabricated
Horizontal distribution muscle, vertical distributing reinforcement and presstressed reinforcing steel duct are provided with wall body, prestress steel is provided with the presstressed reinforcing steel duct
Muscle, described deformed bar one end is fixed in deformed bar anchored end, and the other end passes through each dry wall body and cast-in-place wall
Provided with encryption horizontal bar and vertical applied force muscle in body, the cast-in-place wall body, the vertical applied force muscle is by cast-in-place wall body upper and lower ends
Adjacent vertical distributing reinforcement extends to composition in cast-in-place wall body, and the vertical applied force muscle uses the mechanical anchor shape of Bar Anchorage plate
Formula overlap joint connection.
Further, the dry wall body bottom is provided with groove, and the shear keies of 30*80*20@200 are provided with the groove.
Further, door-window opening is provided with the dry wall.
Further, longitudinal direction sets two vertical distributing reinforcements in the dry wall body.
Further, two of longitudinal direction vertical distributing reinforcements are attached using plum blossom lacing wire in the dry wall body,
And type of attachment is arranged at intervals.
Further, the deformed bar is selected any in prestress wire, steel wire and heat-treated steel bar.
The beneficial effects of the invention are as follows：The present invention is alternative or coordinates reinforced bar sleeve grouting connection, and reinforcing bar slurry anchor overlap joint connects
Connect, compared with current conventional connected mode, advantage is as follows：
The wall vertical reinforcement vertically continuous insertion in part, it is to avoid the whole 100% joint rates of longitudinal reinforcement.
The pressure produced by presstressed reinforcing steel resists the pulling force caused by horizontal force such as earthquake wind load come partial equilibrium, greatly
The big rigidity for improving structure, adds ductility, is effectively improved the durability of structure.
Due to prestressed effect, certain frictional force can be produced between PC shear wall slab joint faces, can be passed with this
Pass shearing.
The live wet method connection of crucial connecting node, good integrity is safe and reliable, while wall body vertical applied force reinforcing bar exists
Region connection reduces colligation length, constructing operation is easy using the mechanical anchor form overlap joint connection of Bar Anchorage plate.
Brief description of the drawings
Fig. 1 is dry wall body facade organigram.
Fig. 2 is dry wall body sectional view.
Fig. 3 is backward pull partial prestressing PC shear wall slab connection diagrams.
In figure：1- dry wall bodies, 2- cast-in-place wall bodies, 3- deformed bar anchored ends, 4- horizontal distribution muscle, 5- is vertically distributed
Muscle, 6- deformed bars, 7- encryption horizontal bars, 8- vertical applied force muscle, 9- door-window openings, 10- plum blossom lacing wires, 11- grooves, 12-
Bar Anchorage plate.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of post stretching partial prestressing PC shear wall slab attachment structures, it includes dry wall body
1, cast-in-place wall body 2 and deformed bar anchored end 3, the dry wall body 1 are located at the top of deformed bar anchored end 3, prefabricated
The cast-in-place wall body 2 is equipped between wall body 1 and deformed bar anchored end 3 and between adjacent dry wall body 1, it is described pre-
Horizontal distribution muscle 4, vertical distributing reinforcement 5 and presstressed reinforcing steel duct are provided with wall body 1 processed, is answered in the presstressed reinforcing steel duct provided with pre-
Power reinforcing bar 6, described one end of deformed bar 6 is fixed in deformed bar anchored end 3, and the other end passes through each dry wall body 1
With cast-in-place wall body 2, the cast-in-place wall body 2 is interior to be provided with encryption horizontal bar 7 and vertical applied force muscle 8, and the vertical applied force muscle 8 is by cast-in-place
The adjacent vertical distributing reinforcement 5 of the upper and lower ends of wall body 2 extends to composition in cast-in-place wall body 2, and the vertical applied force muscle 8 uses reinforcing bar anchor
Gu the mechanical anchor form overlap joint connection of plate 12.
In the present invention, the bottom of dry wall body 1 is provided with groove 11, and 30*80*20@200 are provided with the groove 11（It is single
Position mm）Shear key.The dry wall body 1 is provided with door-window opening 9.Longitudinal direction sets two vertically in the dry wall body 1
Distributing reinforcement 5.The vertical distributing reinforcement 5 of two of longitudinal direction is attached using plum blossom lacing wire 10 in the dry wall body 1, and even
Connect form interval setting.The deformed bar 6 is from any in prestress wire, steel wire and heat-treated steel bar.
The present invention is that deformed bar 6 and vertical distributing reinforcement 5 cooperatively stress are added in the middle part of PC shear wall slabs.According to
Vertically pre-buried stay sets tensioned prestressing bar duct in the middle part of wall for stress structure requirement, treats the splicing of the scene of dry wall body 1 in place
Afterwards, node collar tie beam at wall horizontal joint is poured, wall body vertical applied force muscle 8 uses the mechanical anchor of Bar Anchorage plate in the region
Form overlap joint connects to reduce colligation length.Pouring concrete is reached after more than 75% design strength after, tensioned prestressing bar 6 and
Filled in reserving hole channel and fill out slurry.If deformed bar 6 can also use heat-treated steel bar from prestress wire, steel wire.Should
Arrangement of reinforcement and form of construction work are combined, due to prestressed effect, certain frictional force can be produced between PC shear wall slab joint faces, can be with
Transfer of Shear is come with this；The pressure that wallboard can be produced by presstressed reinforcing steel draws come horizontal forces such as partial equilibrium resistance earthquake wind loads
The pulling force risen, substantially increases the rigidity of structure, adds ductility, be effectively improved the durability of structure, good integrity.
The present invention sequence of construction be：Prefabricated panel on-site consolidation → insertion tensioning material（Remove duct in moisture,
Impurity etc.）The maintenance → corresponding with tension sequence of pouring of → seaming loop beam connecting node is constructed（Placing intensity, lysimetric test
Deng）→ stretch-draw prestressing force → grouting is poured → is assembled and terminated.
The basic principles, principal features and advantages of the present invention have been shown and described above.One of ordinary skill in the art
It should be appreciated that above-described embodiment protection domain that the invention is not limited in any way, the mode such as all use equivalent substitutions is obtained
The technical scheme obtained, falls within protection scope of the present invention.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Claims (6)
1. a kind of post stretching partial prestressing PC shear wall slab attachment structures, it is characterised in that：Including dry wall body（1）, it is cast-in-place
Wall body（2）With deformed bar anchored end（3）, the dry wall body（1）Positioned at deformed bar anchored end（3）Top, pre-
Wall body processed（1）With deformed bar anchored end（3）Between and adjacent dry wall body（1）Between be equipped with the cast-in-place wall body
（2）, the dry wall body（1）It is interior to be provided with horizontal distribution muscle（4）, vertical distributing reinforcement（5）And presstressed reinforcing steel duct, in the prestressing force
Deformed bar is provided with muscle duct（6）, the deformed bar（6）One end is fixed on deformed bar anchored end（3）It is interior, separately
One end passes through each dry wall body（1）With cast-in-place wall body（2）, the cast-in-place wall body（2）It is interior to be provided with encryption horizontal bar（7）With it is vertical
Principal rod（8）, the vertical applied force muscle（8）By cast-in-place wall body（2）The adjacent vertical distributing reinforcement of upper and lower ends（5）Extend to cast-in-place
Wall body（2）It is interior to constitute, the vertical applied force muscle（8）Using Bar Anchorage plate（12）Mechanical anchor form overlap joint connection.
2. a kind of post stretching partial prestressing PC shear wall slab attachment structures according to claim 1, it is characterised in that：Institute
State dry wall body（1）Bottom is provided with groove（11）, in the groove（11）It is interior to be provided with the shear keies of 30*80*20@200.
3. a kind of post stretching partial prestressing PC shear wall slab attachment structures according to claim 1, it is characterised in that：Institute
State dry wall body（1）It is provided with door-window opening（9）.
4. a kind of post stretching partial prestressing PC shear wall slab attachment structures according to claim 1, it is characterised in that：Institute
State dry wall body（1）Interior longitudinal direction sets two vertical distributing reinforcements（5）.
5. a kind of post stretching partial prestressing PC shear wall slab attachment structures according to claim 4, it is characterised in that：Institute
State dry wall body（1）The vertical distributing reinforcement of two of interior longitudinal direction（5）Using plum blossom lacing wire（10）It is attached, and connects shape
Formula is arranged at intervals.
6. a kind of post stretching partial prestressing PC shear wall slab attachment structures according to claim 1, it is characterised in that：Institute
State deformed bar（6）From any in prestress wire, steel wire and heat-treated steel bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710171800.3A CN107060073A (en) | 2017-03-22 | 2017-03-22 | A kind of post stretching partial prestressing PC shear wall slab attachment structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710171800.3A CN107060073A (en) | 2017-03-22 | 2017-03-22 | A kind of post stretching partial prestressing PC shear wall slab attachment structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107060073A true CN107060073A (en) | 2017-08-18 |
Family
ID=59620823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710171800.3A Pending CN107060073A (en) | 2017-03-22 | 2017-03-22 | A kind of post stretching partial prestressing PC shear wall slab attachment structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107060073A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140063A (en) * | 2020-01-14 | 2020-05-12 | 中国中材国际工程股份有限公司 | Grog warehouse and arrangement method thereof |
| CN112942619A (en) * | 2021-02-03 | 2021-06-11 | 佛山科学技术学院 | Wallboard in assembled |
| CN114045958A (en) * | 2021-11-29 | 2022-02-15 | 江苏科技大学 | Synchronous grouting tooth socket applied to fabricated shear wall and construction method thereof |
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| CN101787733A (en) * | 2010-03-03 | 2010-07-28 | 管乃彦 | Prefabricated vertical member |
| CN104179249A (en) * | 2014-08-22 | 2014-12-03 | 郑州大学 | Assembled composite-structure earthquake-resistant wall and assembly method thereof |
| CN204252400U (en) * | 2014-08-15 | 2015-04-08 | 重庆大学 | A kind of reinforcing bar connector for earthquake-proof frame top story knee joint |
| US20150308100A1 (en) * | 2008-10-03 | 2015-10-29 | Thomas M Espinosa | Hold Down System Using Hollow Bearing Members |
| KR20160055330A (en) * | 2014-11-07 | 2016-05-18 | 서울시립대학교 산학협력단 | Reinforcing Method by External Precast Concrete Wall Panel Using Prestressing Strands |
| CN105756202A (en) * | 2016-04-20 | 2016-07-13 | 天津大学建筑设计研究院 | Tooth groove type connection structure of assembled shear wall in combination with superimposed floor slab |
| CN205475683U (en) * | 2016-01-29 | 2016-08-17 | 中民筑友有限公司 | Assembled wall panel structure system |
-
2017
- 2017-03-22 CN CN201710171800.3A patent/CN107060073A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150308100A1 (en) * | 2008-10-03 | 2015-10-29 | Thomas M Espinosa | Hold Down System Using Hollow Bearing Members |
| CN101787733A (en) * | 2010-03-03 | 2010-07-28 | 管乃彦 | Prefabricated vertical member |
| CN204252400U (en) * | 2014-08-15 | 2015-04-08 | 重庆大学 | A kind of reinforcing bar connector for earthquake-proof frame top story knee joint |
| CN104179249A (en) * | 2014-08-22 | 2014-12-03 | 郑州大学 | Assembled composite-structure earthquake-resistant wall and assembly method thereof |
| KR20160055330A (en) * | 2014-11-07 | 2016-05-18 | 서울시립대학교 산학협력단 | Reinforcing Method by External Precast Concrete Wall Panel Using Prestressing Strands |
| CN205475683U (en) * | 2016-01-29 | 2016-08-17 | 中民筑友有限公司 | Assembled wall panel structure system |
| CN105756202A (en) * | 2016-04-20 | 2016-07-13 | 天津大学建筑设计研究院 | Tooth groove type connection structure of assembled shear wall in combination with superimposed floor slab |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140063A (en) * | 2020-01-14 | 2020-05-12 | 中国中材国际工程股份有限公司 | Grog warehouse and arrangement method thereof |
| CN112942619A (en) * | 2021-02-03 | 2021-06-11 | 佛山科学技术学院 | Wallboard in assembled |
| CN114045958A (en) * | 2021-11-29 | 2022-02-15 | 江苏科技大学 | Synchronous grouting tooth socket applied to fabricated shear wall and construction method thereof |
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Application publication date: 20170818 |