CN105904579A - Prefabricated concrete member - Google Patents
Prefabricated concrete member Download PDFInfo
- Publication number
- CN105904579A CN105904579A CN201610287930.9A CN201610287930A CN105904579A CN 105904579 A CN105904579 A CN 105904579A CN 201610287930 A CN201610287930 A CN 201610287930A CN 105904579 A CN105904579 A CN 105904579A
- Authority
- CN
- China
- Prior art keywords
- hole
- concrete
- reinforcing bar
- precast concrete
- precast
- 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.)
- Withdrawn
Links
- 239000004567 concrete Substances 0.000 title claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000011178 precast concrete Substances 0.000 claims description 42
- 230000003014 reinforcing effect Effects 0.000 claims description 35
- 239000011888 foil Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- -1 timber Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
-
- 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
- E04B1/4157—Longitudinally-externally threaded elements extending from the concrete or masonry, e.g. anchoring bolt with embedded head
-
- 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)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention relates to a prefabricated concrete member and belongs to the technical field of prefabricated concrete structures. At least one discontinuous hole is formed in the prefabricated concrete member. Rebars anchored at the bottoms of the holes and into concrete on the side walls of the holes are arranged in the holes. Metal foil for sealing the holes is arranged at the top of each hole. By the adoption of the prefabricated concrete member, the stress performance of the prefabricated concrete structure is improved.
Description
Technical field
The invention belongs to prefabricated reinforced concrete structure technical field.
Background technology
The production efficiency of precast concrete is high, quality is good, saves resource, beneficially sustainable development.Use prefabricated
Xoncrete structure is building industrialization developing direction.
In prior art, precast concrete has hole, is inserted into reinforcing bar, casting concrete at hole pre-to realize
Connection between component processed, insert the Bar Anchorage of hole in hole after in pouring concrete, rear pouring concrete and precast concrete
Between connect together by conjunction old and new concret power, switching performance Shortcomings.
Summary of the invention
It is an object of the invention to improve the switching performance between precast concrete, improve the entirety of precast concrete
Property.
The present invention proposes a kind of precast concrete, and described precast concrete has one or more and do not passes through
Via holes, arranges reinforcing bar in hole, Bar Anchorage is bottom hole and in hole sidewalls precast concrete；Described hole top sets
It is equipped with the metal forming closing described hole.Hole is set and can improve the globality between precast concrete and rear pouring concrete；Reinforcing bar
It is anchored at bottom hole and in sidewall precast concrete, the associativity of rear pouring concrete in precast concrete and hole can be improved
Can, and can be with the bar connecting inserted in hole, power transmission is direct, and stress is reliable, it is to avoid in prior art between prefabricated components
Connect Bar Anchorage rough sledding in hole in rear pouring concrete.By arranging metal forming, when after structure, pouring concrete divides
When batch pours, metal forming can prevent the concrete first poured from entering hole；When needs casting concrete in hole, remove
Metal forming.May be used without other materials and replace metal forming cap holes, such as kraft paper, glass wool cloth etc..Described hole
Cross section, hole is oval or circular or polygon, or other shapes.
Described precast concrete has the hole intersected with the most through described hole, and this hole is through hole or not
Through hole；After so, pouring concrete is interlocked with precast concrete, improves the binding ability between prefabricated components.
Described it is anchored in bottom precast concrete hole and the reinforcing bar of sidewall stretches out described hole, or described reinforcing bar
Do not extend out described hole.
The manufacture method of precast concrete of the present invention, it is characterised in that comprise the following steps: that (1) is at prefabricated components
On production site, using bed die, backform, side form and Nei Mo make template, wherein have and internal mold shape size on backform or side form
Identical hole, described interior mould bottom lock, have hole, described reinforcing bar passes this hole；(2) by side form, backform and bed die
Combining, arrange bar-mat reinforcement, mould in arranging, interior mould passes backform or the hole of side form；(3) at side form, backform and bed die
Casting concrete in the space of composition；(4) in extracting out, mould forms hole；(5) treat that concrete reaches to expect that intensity removes bed die, top
Mould, side form, form precast concrete；(6) metal forming is set at hole oral area.
Described interior mould is steel pipe or fibre reinforced composites pipe；Or described interior mould is entity.
When making precast concrete, inner mould portion length or all length pad light material, including timber, rubber
Glue etc., so can be secured across the reinforcing bar of interior mould, prevent reinforcing bar displacement in manufacturing process.
Described inner mould surface smears a layer concrete surface retarders；So in extracting out during mould, contact with interior mould is mixed
Solidifying soil, due to the effect of concrete surface retarders, does not the most solidify, mould in convenient extraction；Other concrete have cured, can
When preventing from extracting out interior mould, it is drawn out of or disturbance through the reinforcing bar bottom interior mould；If rinsing hole surface with water, can be formed undisguised
Material matsurface, significantly improves the binding ability of new-old concrete；
When making precast concrete, through the reinforcing bar and interior baffle plate of interior mould, there is encapsulant, coagulation can be avoided
Soil enters Nei Monei.
When making precast concrete, described interior mould includes mould in two or more sons, the friendship of intermode in son
On interface fluted, in adjacent son mould groove composition duct, the duct that the reinforcing bar through interior mould consists of groove；So may be used
First extract mould in a son, mould in convenient extraction out.
The present invention compared with prior art has the advantage that.
(1) anchor and have reinforcing bar with sidewall, after significantly improving in hole bottom the hole of the precast concrete of the present invention
Pouring concrete and precast concrete connection integrity；The reinforcing bar of rear insertion hole can overlap or be mechanically connected with this reinforcing bar or weld
Together, power transmission is directly, reliably, it is to avoid after after in prior art, the Bar Anchorage of insertion hole is in hole in pouring concrete,
Pouring concrete and the situation of precast concrete binding ability power transmission after relying on again.
(2) the precast concrete hole surface of the present invention can be matsurface, significantly improves conjunction old and new concret face
Stress performance, improve cast in place and precast construction performance.When smearing concrete surface retarders at inner mould surface, retarder
Delay the final setting time of concrete, therefore reach higher intensity, inner mould surface at other part concrete of prefabricated components
The not yet final set of concrete in concrete retarder coverage, after washing away with water, can form matsurface；The most also avoid extracting out
Collapse hole, well table surface concrete damage etc. during interior mould, it is ensured that the quality of precast hollow component hole, significantly facilitate construction.
(3) hole top metal forming is closed, can convenient construction process.As a example by body of wall, after pouring body of wall, water coagulation
When soil and the floorslab concrete being supported on body of wall, metal forming can prevent concrete from entering body of wall hole；Install upper strata body of wall
And after anchor bar is inserted hole, realize interlayer body of wall by casting concrete continuous.
(4) present invention forms the structure stretching out reinforcing bar bottom hole；After pouring in hole after pouring concrete, after water mixed
Solidifying soil forms concrete joint surface with precast concrete hole wall；Concrete joint surface is formed by the concrete of first after-pouring, i.e. by
Same type of material is formed, and the faying face formed relative to different materials, binding ability is preferable.The precast concrete of the present invention is big
Being used for substructure, i.e. hole oral area is upwards, and the faying face between rear pouring concrete and precast concrete is at hole side and the end
Face, by lateral pressure and the low pressure of rear pouring concrete, the binding ability of new-old concrete is good.
(5) present invention provide a kind of convenience, reliably carry out between different component connect precast concrete.By
Perforate on precast concrete, and bottom hole, stretch out reinforcing bar, pour common or high performance concrete the most again in hole
Realize the connection between different precast concrete.When hole bottom reinforcement bars stretches out hole, can take with the reinforcing bar of adjacent members
Connect, be mechanically connected, welding etc.；When hole bottom reinforcement bars does not extends out hole, can be with the bar splicing of adjacent members.
Described precast concrete includes but not limited to precast slab, wall, T-shaped wall column, L-shaped wall column, cross
The element types such as wall column, post, trough plate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of embodiment of precast concrete of the present invention.
Fig. 2 is the schematic diagram of precast concrete another kind embodiment of the present invention.
Labelling implication in accompanying drawing is: 1 the most through hole 2 hole bottom reinforcement bars 3 hole sidewalls reinforcing bar 4 metal forming.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, precast concrete of the present invention and preparation method thereof is carried out detailed retouching
State.
A kind of embodiment of the precast concrete that the present invention proposes, such as Fig. 1, has in precast concrete and does not pass through
Via holes 1, arranges reinforcing bar 2 and reinforcing bar 3 in hole 1, reinforcing bar 2 is anchored in hole lower concrete, and reinforcing bar 3 is anchored at hole side
In wall concrete；Reinforcing bar 2 and reinforcing bar 3 do not extend out hole；Hole 1 oral area arranges metal forming 4；Convenient for expressing, metal forming 4 in figure
It is expressed as transparent material.In Fig. 1, the cutting plane shadow representation of component goes out, and is not drawn into other reinforcing bars of precast concrete.
A kind of embodiment of the precast concrete that the present invention proposes, such as Fig. 2, has the most through in precast slab
Hole 1, arranges reinforcing bar 2 and reinforcing bar 3 in hole 1, reinforcing bar 2 is anchored in hole lower concrete, and reinforcing bar 3 is anchored at hole sidewalls
In concrete；Reinforcing bar 2 and reinforcing bar 3 stretch out hole；Hole 1 oral area arranges metal forming.Fig. 2 Hole 1 top metal foil is not shown.
In Fig. 2, dash area is cutting plane, is not drawn into other reinforcing bars of precast concrete.
Claims (3)
1. a precast concrete, has more than one the most through hole in it, it is characterised in that arrange in described hole
Reinforcing bar, described Bar Anchorage is bottom hole and in hole sidewalls concrete；Described hole top is provided with closing described hole
Metal forming.
Precast concrete the most according to claim 1, it is characterised in that described hole cross section is circular or oval
Or polygon.
Precast concrete the most according to claim 1, it is characterised in that described reinforcing bar stretches out described hole, or
Described reinforcing bar does not extends out described hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287930.9A CN105904579A (en) | 2016-05-04 | 2016-05-04 | Prefabricated concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287930.9A CN105904579A (en) | 2016-05-04 | 2016-05-04 | Prefabricated concrete member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105904579A true CN105904579A (en) | 2016-08-31 |
Family
ID=56753246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610287930.9A Withdrawn CN105904579A (en) | 2016-05-04 | 2016-05-04 | Prefabricated concrete member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105904579A (en) |
-
2016
- 2016-05-04 CN CN201610287930.9A patent/CN105904579A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160831 |
|
| WW01 | Invention patent application withdrawn after publication |