CN103835440A - Wire-mesh-coated cement mortar plate-concrete combined bearing rectangular column and preparation method thereof - Google Patents
Wire-mesh-coated cement mortar plate-concrete combined bearing rectangular column and preparation method thereof Download PDFInfo
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- CN103835440A CN103835440A CN201410108396.1A CN201410108396A CN103835440A CN 103835440 A CN103835440 A CN 103835440A CN 201410108396 A CN201410108396 A CN 201410108396A CN 103835440 A CN103835440 A CN 103835440A
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Abstract
The invention relates to a wire-mesh-coated cement mortar plate-concrete combined bearing rectangular column and a preparation method of the wire-mesh-coated cement mortar plate-concrete combined bearing rectangular column. The wire-mesh-coated cement mortar plate-concrete combined bearing rectangular column comprises wire mesh cement mortar plates, highly polymeric mortar, a reinforcement cage, a prefabricated connector and concrete. The rectangular column is internally provided with the reinforcement cage and poured by concrete. The wire mesh cement mortar plates wrap the reinforcement cage as external containment templates, and the wire mesh cement mortar plates are connected through the highly polymeric mortar and prefabricated connector. The wire-mesh-coated cement mortar plate-concrete combined bearing rectangular column provided by the invention is suitable for lower- and multi-story building systems. The wire mesh cement mortar plate is high in strength and good in durability. Due to the containment effect and effective connection of the wire mesh cement mortar plates, the bearing capacity and durability of the integral structure are improved, and meanwhile, the wire mesh cement mortar plates as the external template are disassembly-free, so that the column is not only economic and environmentally friendly, but also convenient to construct.
Description
Technical field
The present invention relates to a kind of Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column and the practice, belong to technical field of structural engineering.
Background technology
Concrete structure combines reinforcing bar and concrete advantage, cost is lower, it is the preferred forms in civil engineering structure design, although its range of application is very extensive., along with the new proposition of structural calculation theory and the appearance of New Building Materials, in the future also there will be much new form of structure, but certainly, concrete structure remains one of the most frequently used form of structure.But, due to various environmental factors, concrete is all the time all being subject to various erosions, as carbonation of concrete, Chloride Attack etc., make concrete structure be difficult to reach the service life of original design, therefore improve the durability of structure and put on schedule.
In China, the problem of concrete structure durability is very serious, according to State Statistics Bureau and the Ministry of Construction 323 cities and 5000 results that generally investigate in town to 28 provinces，municipalities and autonomous regions in urban and urual areas of whole country in 1986, existing urban housing building area 46.76 hundred million m2 of China at present, account for 60% of whole house architectural areas, existing industrial premises approximately 500,000,000 m2, the state-owned fixed assets that cover exceed 5,000 hundred million yuan, approximately have 2,300,000,000 m2 to assess by stages and in groups and reinforce in these buildings. and wherein after urgent need maintenance and reinforcements more than half, could normally use.Therefore, reinforced concrete structure durability problem be one very important be also problem in the urgent need to solving.
Traditional reinforced concrete post durability is generally poor, need to regularly carry out consolidation process, expends a large amount of manpower and materials, and depression of bearing force is serious simultaneously.Based on this, the present invention proposes a kind of simple, be easy to construction, with permanent exempt to tear open ferro-cement plate replace conventional template, the combination load-bearing pillar of cast-in-place ordinary concrete or rational proportion regeneration concrete, than traditional concrete bearing post, its durability and bearing capacity significantly improve, mortar template exempts to tear open simultaneously, has improved globality and the anti-seismic performance of structure, is highly suitable for the new structural system of low multistory building.
Summary of the invention
The object of the present invention is to provide a kind of Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column and practice with advantages such as simple structure, cheap, easy construction, durable quake-proof integrals, to effectively solving conventional concrete post poor durability, the problems such as anti-seismic performance weakness.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column, described rectangular column comprises ferro-cement plate, high Polymer Mortar, cage of reinforcement, prefabricated connector, concrete; In described rectangular column, cage of reinforcement is set, and build concrete, it is enclosed with ferro-cement plate to go along with sb. to guard him template as outside around, between described ferro-cement plate, be connected with prefabricated connector by high Polymer Mortar, wherein, described high Polymer Mortar is arranged on ferro-cement plate seam crossing, and described prefabricated connector is arranged on inside, two ferro-cement plate turnings.
Further, described concrete is ordinary concrete or regeneration concrete.
Further, described ferro-cement plate length or width are 50mm, 150mm, 300mm or 600mm, and thickness is 20～25mm.
Further, described ferro-cement intralamellar part has steel wire to gather net as cage of reinforcement.
Further, described ferro-cement plate outside is for throwing plane, and inner face is matsurface.
Further, described high Polymer Mortar provides flexible adhesion for the connection between ferro-cement plate, and high Polymer Mortar smearing thickness is no more than 5mm.
Further, described prefabricated connector is equal leg angle, is of a size of ∠ 30 × 30 × 3, be that hem width is the thick 3mm of being in 30mm, limit, connection for ferro-cement plate in bending place, described prefabricated connector horizontal arrangement spacing is 250mm～300mm, vertical spacing is 300mm～400mm.
Further, the longitudinal reinforcement in described cage of reinforcement adopts HRB335 level or HRB400 grade reinforcing steel, and diameter is 12mm～14mm; Stirrup adopts HPB300 grade reinforcing steel, and stirrup diameter is 8mm～10mm, and stirrup spacing is 150mm.
Further, the regeneration concrete that build the described template inside being surrounded by ferro-cement plate, its coarse aggregate replacement rate is for being no more than 30%.
The practice of above-mentioned Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column, preparation method is as follows:
Step 1: the arrangement of reinforcement skeleton of Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column is inserted in grade beam by size, build grade beam steel concrete;
Step 2: grade beam upper surface is copied to measuring line by house planar dimension, and levelling grade beam upper surface, ejects double solid line by the thickness of ferro-cement plate;
Step 3: ferro-cement plate is overlapped to brick work, and ferro-cement plate adopts high Polymer Mortar to bond, boring simultaneously adds prefabricated connector;
Step 4: build ordinary concrete or regeneration concrete in the rectangle frame surrounding at ferro-cement plate and form Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column.
Beneficial effect
Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column of the present invention is applicable to low, multistory building.Housing ferro-cement plate links together reliably by high Polymer Mortar and prefabricated connector, inner concrete is produced to core effect of contraction, thereby improve the resistance to compression supporting capacity of rectangular column, wire mesh mortar plate has good durability and intensity simultaneously, as exterior sheathing, both can, in order to avoid tear open, improve again globality and the durability of structure, be about 25%.
Brief description of the drawings
Fig. 1 is Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column sectional view
Fig. 2 is prefabricated connector schematic diagram;
Fig. 3 Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column elevation;
In figure: 1 ferro-cement plate, 2 high Polymer Mortars, 3 cage of reinforcement, 4 prefabricated connectors, 5 ordinary concretes or regeneration concrete.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described:
As Figure 1-3, Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column of the present invention, this rectangular column comprises ferro-cement plate 1, high Polymer Mortar 2, cage of reinforcement 3, prefabricated connector 4, ordinary concrete or regeneration concrete 5.Rectangular column is formed by cage of reinforcement 3 and concrete 5 monobloc casts.Rectangular column is enclosed with ferro-cement plate 1 to go along with sb. to guard him template as outside around, between ferro-cement plate 1, be connected with prefabricated connector 4 by high Polymer Mortar 2, high Polymer Mortar 2 is arranged on ferro-cement plate 1 seam crossing, and prefabricated connector 4 is arranged on two blocks of ferro-cement plates, 1 inside, turning.
Particularly, growing tall of ferro-cement plate 1 can be processed into corresponding modulus, and as length or width are 50,150,300,600mm, thickness is 20～25mm.What mortar adopted is High Performance Mortar, inside has steel wire to gather net as cage of reinforcement, adopting dither to carry out fine and closely woven reality vibrates, net is effective to bond to ensure to gather High Performance Mortar with steel wire, greatly improve compactness and the intensity of wire mesh mortar plate, can reach C40～C50 strength grade of concrete.The connection of wire mesh mortar plate is mainly the bonding of high Polymer Mortar and the connection of prefabricated connector.In the time of machined steel silk screen Mortar Plates, the outside of one side as formwork for placing put down in a throwing, the inner face that coarse one side is formwork for placing, thereby the concrete that effectively raising is built and the bonding of wire mesh mortar plate.
The smearing thickness of high Polymer Mortar 2 is no more than 5mm, and high Polymer Mortar 2 provides reliable bonding for wire mesh mortar plate, adhesive-hardening fast simultaneously, thus overcome the problem of setting up of wire mesh mortar template.
Longitudinal reinforcement in described cage of reinforcement 3 adopts HRB335 level or HRB400 grade reinforcing steel, and diameter is 12mm～14mm; Stirrup adopts HPB300 grade reinforcing steel, and stirrup diameter is 8mm～10mm, and stirrup spacing 150mm has improved the globality of structure, is conducive to the antidetonation of structure.
Ordinary concrete can be built in the template inside being made up of ferro-cement plate 1, also can build the regeneration concrete through rational proportion, and coarse aggregate replacement rate is for should not exceed 30%.
Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column, its preparation method is as follows.
S1 inserts in the cage of reinforcement of Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column in grade beam by size, builds grade beam steel concrete;
S2 copies measuring line by grade beam upper surface by house planar dimension, and levelling grade beam upper surface ejects double solid line by the thickness of ferro-cement plate 1;
Ferro-cement plate 1 is overlapped brick work by S3, and ferro-cement plate 1 adopts high Polymer Mortar 2 to bond, and boring simultaneously adds prefabricated connector 4;
In the rectangle frame that S5 surrounds at ferro-cement plate 1, build ordinary concrete or regeneration concrete 5 and form Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column.
Below be only a typical case study on implementation of the present invention, enforcement of the present invention is not limited to this.
Claims (10)
1. Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column, is characterized in that: described rectangular column comprises ferro-cement plate (1), high Polymer Mortar (2), cage of reinforcement (3), prefabricated connector (4), concrete (5); Cage of reinforcement (3) is set in described rectangular column, and build concrete (5), it is enclosed with ferro-cement plate (1) to go along with sb. to guard him template as outside around, between described ferro-cement plate (1), be connected with prefabricated connector (4) by high Polymer Mortar (2), wherein, described high Polymer Mortar (2) is arranged on ferro-cement plate (1) seam crossing, and described prefabricated connector (4) is arranged on two blocks of ferro-cement plates (1) inside, turning.
2. Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column according to claim 1, is characterized in that: described concrete is ordinary concrete or regeneration concrete (5).
3. Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column according to claim 1, is characterized in that: described ferro-cement plate (1) length or width are 50mm, 150mm, 300mm or 600mm, and thickness is 20～25mm.
4. Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column according to claim 1, is characterized in that: described ferro-cement plate (1) inside has steel wire to gather net as cage of reinforcement.
5. Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column according to claim 1, is characterized in that: described ferro-cement plate (1) outside is for throwing plane, and inner face is matsurface.
6. Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column according to claim 1, it is characterized in that: described high Polymer Mortar (2) is that the connection between ferro-cement plate (1) provides flexible adhesion, and high Polymer Mortar (2) smearing thickness is no more than 5mm.
7. Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column according to claim 1, it is characterized in that: described prefabricated connector (4) is equal leg angle, be of a size of ∠ 30 × 30 × 3, be that hem width is the thick 3mm of being in 30mm, limit, connection for ferro-cement plate (1) in bending place, described prefabricated connector (4) horizontal arrangement spacing is 250mm～300mm, and vertical spacing is 300mm～400mm.
8. Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column according to claim 1, is characterized in that: the longitudinal reinforcement in described cage of reinforcement (3) adopts HRB335 level or HRB400 grade reinforcing steel, and diameter is 12mm～14mm; Stirrup adopts HPB300 grade reinforcing steel, and stirrup diameter is 8mm～10mm, and stirrup spacing is 150mm.
9. Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column according to claim 1, it is characterized in that: the regeneration concrete that build the described template inside being surrounded by ferro-cement plate (1), its coarse aggregate replacement rate is for being no more than 30%.
10. a practice for Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column as described in any one in claim 1-9, is characterized in that: preparation method is as follows:
Step 1: the arrangement of reinforcement skeleton of Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column is inserted in grade beam by size, build grade beam steel concrete;
Step 2: grade beam upper surface is copied to measuring line by house planar dimension, and levelling grade beam upper surface, ejects double solid line by the thickness of ferro-cement plate (1);
Step 3: ferro-cement plate (1) is overlapped to brick work, and ferro-cement plate (1) adopts high Polymer Mortar (2) to bond, boring simultaneously adds prefabricated connector (4);
Step 4: build ordinary concrete or regeneration concrete (5) in the rectangle frame surrounding at ferro-cement plate (1) and form Covered with Angles silk screen reinforced cement-mortar board-Combined concrete load-bearing rectangular column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410108396.1A CN103835440A (en) | 2014-03-21 | 2014-03-21 | Wire-mesh-coated cement mortar plate-concrete combined bearing rectangular column and preparation method thereof |
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| CN201410108396.1A CN103835440A (en) | 2014-03-21 | 2014-03-21 | Wire-mesh-coated cement mortar plate-concrete combined bearing rectangular column and preparation method thereof |
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| CN103835440A true CN103835440A (en) | 2014-06-04 |
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| CN105951987A (en) * | 2016-06-23 | 2016-09-21 | 杭州江润科技有限公司 | Sub-frame post-cast joint with external permanent aluminum plate outer mold |
| CN108407045A (en) * | 2018-04-13 | 2018-08-17 | 中建电力建设有限公司 | Construction method of steel-clad concrete building |
| CN108999335A (en) * | 2018-08-30 | 2018-12-14 | 天津大学建筑设计研究院 | Light steel grating concrete building system |
| CN111021630A (en) * | 2019-12-03 | 2020-04-17 | 中铁建设集团有限公司 | Section steel concrete column and semi-assembly type construction method thereof |
| US11414880B2 (en) * | 2019-09-29 | 2022-08-16 | Feng He Ying Zao Group Co., Ltd. | Reinforcing structure of unexpired concrete building floors |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111021630A (en) * | 2019-12-03 | 2020-04-17 | 中铁建设集团有限公司 | Section steel concrete column and semi-assembly type construction method thereof |
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Application publication date: 20140604 |