CN203403692U - Brick-concrete-structure newly-added reinforced concrete beam parallel to rib plate - Google Patents
Brick-concrete-structure newly-added reinforced concrete beam parallel to rib plate Download PDFInfo
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- CN203403692U CN203403692U CN201320482724.5U CN201320482724U CN203403692U CN 203403692 U CN203403692 U CN 203403692U CN 201320482724 U CN201320482724 U CN 201320482724U CN 203403692 U CN203403692 U CN 203403692U
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Abstract
Provided is a brick-concrete-structure newly-added reinforced concrete beam parallel to a rib plate. The brick-concrete-structure newly-added reinforced concrete beam is arranged at the spliced seam of an original prefabricated slab, the axis of the brick-concrete-structure newly-added reinforced concrete beam is parallel to the slab rib axis of an original prefabricated hollow slab, newly-added beam stirrups and newly-added beam longitudinal reinforcements are arranged in the brick-concrete-structure newly-added reinforced concrete beam, rib penetrating holes are formed in the original prefabricated hollow slab, the newly-added beam stirrups penetrate through the rib penetrating holes, and the concrete of the brick-concrete-structure newly-added reinforced concrete beam parallel to the rib plate is poured through the rib penetrating holes. The newly-added beam stirrups and newly-added additional beam stirrups are used as shearing and grinding reinforcements, a direct and reliably-connected lateral load resistant horizontal floor structure system carrying out overall acting is formed on the concrete contact face of the newly-added reinforced concrete beam and the original prefabricated hollow slab based on a shearing force friction theory, the newly-added reinforced concrete beam is a reinforced concrete component which meets the requirements for the limb distance and the distance of a beam stirrup of corresponding seismic intensity and carries out overall acting, and the anti-seismic reconstruction technology problem that an original prefabricated hollow floorslab lacks integrality is effectively solved.
Description
Technical field
The utility model relates to a kind of reinforced concrete beam, particularly a kind of beam being used in former brick mix structure adding storey for strengthening structure.
Background technology
Along with deepening continuously of 30 years reform and opening-up, China's economic society has obtained developing rapidly, and the paces of Chinese Urbanization's are more and more faster, and particularly in recent years, the Modern Times in city arrived, and highrise building looks like to emerge rapidly in large numbersBamboo shoots after a spring rain, and is seen everywhere.Along with the development in city expands, the soil of each down town rare phenomenon that all comes into existence.Due to historical development reasons, the building of twentieth century eight, the nineties is mostly five or six layers, brick body or brick mix structure, and minority is frame construction, shock resistance is poor, can not adapt to the demand of Modern Urban Development and human settlements.Generally in reconstruction of the old city town, take the remodeling method of " tear open and build in large scale greatly ", not only shorten building life, also wasted ample resources, building waste nowhere discharge meeting causes severe contamination to Land Environment, removes and also can cause social unstability.Take not remove the method that old building adds layer, effectively energy-saving and emission-reduction, low carbon development city, improves dwelling environment and grade.But need to take effective technical measures to guarantee to add the safety of layer rear building structure.
In storey-adding reconstruction technology, there are two important technical barriers, one is reliable connection the between newly adding structural member and original structure part, another one is to arrange to add after layer, and can the intensity of original structure and anti-seismic performance meet the demands, and can its security performance guarantee.
Traditional steel concrete board wall reinforcing wall node nothing between the former masonry wall place as placed concrete parallel with rib of slab (newly-increased steel concrete board wall) and old concrete (former precast hollow slab) is directly connected (only passes from the space between the former precast hollow slab plate end former masonry wall parallel with rib of slab with threading dowel, connect, lower floor increases steel concrete board wall newly), or only depend on adhesives or keyway to connect, under seismic loading, former precast hollow slab departs from the former masonry wall parallel with rib of slab, superstructure loses globality, cannot resist Horizontal Seismic Load by horizontal Structural Floor System as the lateral resisting of a mass action, under seismic loading, can cause former precast hollow slab to come off from the former masonry wall vertical with its rib of slab, thereby cause structure from local failure, to develop into whole destruction rapidly, even suddenly, collapse.This difficult problem fails effectively to solve always.
Utility model content
The purpose of this utility model is to provide the newly-increased reinforced concrete beam of a kind of brick mix structure parallel with rib of slab, solve in existing brick mix structure adding storey for strengthening, and former precast hollow slab floor lacks the technical problem that globality need to be strengthened; And solve the problem being reliably connected between newly-increased reinforced concrete beam and former hollowcore slab.
For achieving the above object, the utility model adopts following technical scheme:
A kind of brick mix structure parallel with rib of slab increases reinforced concrete beam newly, be arranged on former precast plate splicing seams place, its axis is parallel with the rib of slab axis of former precast hollow slab, in it, be provided with newly-increased beam stirrup and newly-increased beam longitudinal reinforcement, on described former precast hollow slab, offer and wear muscle hole, described newly-increased beam stirrup is worn muscle hole, and by wearing the concrete of the parallel newly-increased reinforced concrete beam of brick mix structure of muscle hole perfusion rib of slab.
The described width of wearing muscle hole is not more than the through-hole diameter in former precast hollow slab, and length is 60mm～100mm.
Described former precast hollow plate top surface is not in the situation that arranging former concrete folding layer, be provided with newly-increased concrete folding layer, the overlapping layers reinforcing bar that is provided with bidirectional arrangements in described newly-increased concrete folding layer, the diameter of described overlapping layers reinforcing bar is not less than 8mm, and distribute spacing is not more than 200mm.
Described parallel to newly-increased reinforced concrete beam in the situation that beam section height is not less than 700mm, newly-increased beam waist muscle is set, described newly-increased beam waist muscle is by newly-increased beam lacing wire drawknot.
Described parallel to newly-increased reinforced concrete beam in the situation that beam section width is not less than 350mm, newly-increased additional beam stirrup is set.
Compared with prior art the utlity model has following characteristics and beneficial effect:
In the utility model, the new-old concrete contact surface of newly-increased beam and original floor is served as and is cut mill reinforcing bar by newly-increased beam stirrup and the newly-increased additional beam stirrup when deck-siding is not less than 350mm, according to shearing tribology principle, at newly-increased reinforced concrete beam and former precast hollow slab concrete surface, form directly, the horizontal Structural Floor System of lateral resisting of the reliable mass action connecting, can make again to conform with corresponding antidetonation grade beam stirrup limb distance, the reinforced concrete member of the mass action that spacing requires, effectively solved the antidetonation renovation technique difficult problem that former prefabricated hollow floor lacks globality.Structure described in the utility model can guarantee new-old concrete co-operation under seismic load and gravity load effect, can there is not break-off, can effectively improve rigidity and the antidetonation earthquake intensity in bed rearrangement building, can be widely used in new and old building thing and reinforce, add in layer engineering.
Newly-increased reinforced concrete beam has reduced the span of the newly-increased reinforced concrete beam of vertical rib of slab direction effectively, and the well word or the horizontal Structural Floor System of rood beam lateral resisting that form with the newly-increased reinforced concrete beam of vertical rib of slab direction and former precast hollow slab, greatly improved the lateral resisting ability of structure and the ductility of structure.
Former pea gravel concreten or concrete folding layer or in the non-existent situation of said structure, the newly-increased concrete folding layer arranging, on the basis of the whole anti-seismic performance providing at the new well word forming or the horizontal Structural Floor System of rood beam lateral resisting, it can be the deformability that improves structural entity antidetonation.
Of the present utility model applying, can overcome the shortcoming that traditional " tear open and build in large scale greatly " method can be brought the wasting of resources, environment pollution and relevant social concern, improves the utilization rate of resource in the situation that guaranteeing building integral safety.
The utility model can be widely used in former brick mix structure adding storey for strengthening structure.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is the plan view of the newly-increased beam width parallel with former precast plate rib of slab of brick mix structure reinforced concrete beam while being less than 350mm.
Fig. 2 is that the newly-increased beam width parallel with former precast plate rib of slab of brick mix structure is less than 350mm, depth of beam is < and the sectional drawing of reinforced concrete beam during 700mm.
Fig. 3 is that the newly-increased beam width parallel with former precast plate rib of slab of brick mix structure is less than 350mm, and depth of beam is
time reinforced concrete beam sectional drawing.
Fig. 4 is that the newly-increased beam width parallel with former precast plate rib of slab of brick mix structure is less than 350mm, and depth of beam is
time reinforced concrete beam sectional drawing.
Fig. 5 is the plan view of the newly-increased beam width parallel with former precast plate rib of slab of brick mix structure reinforced concrete beam while being not less than 350mm.
Fig. 6 is that the newly-increased beam width parallel with former precast plate rib of slab of brick mix structure is not less than 350mm, depth of beam is < and the sectional drawing of reinforced concrete beam during 700mm.
Fig. 7 is that the newly-increased beam width parallel with former precast plate rib of slab of brick mix structure is not less than 350mm, and depth of beam is
time reinforced concrete beam sectional drawing.
Fig. 8 is that the newly-increased beam width parallel with former precast plate rib of slab of brick mix structure is not less than 350mm, and depth of beam is
time reinforced concrete beam sectional drawing.
The former precast hollow slab of Reference numeral: 1-, the former precast plate splicing seams of 2-, 3-brick mix structure newly-increased reinforced concrete beam, 4-vertical direction newly-increased reinforced concrete beam, 5-former concrete folding layer, 6-newly-increased concrete folding layer, 7-overlapping layers reinforcing bar, the 8-parallel with rib of slab wear muscle hole, the newly-increased beam stirrup of 9-, the newly-increased beam longitudinal reinforcement of 10-, the newly-increased beam waist muscle of 11-, the newly-increased beam lacing wire of 12-, the newly-increased additional beam stirrup of 13-.
The specific embodiment
Embodiment mono-is referring to shown in Fig. 1 and Fig. 2, a kind of brick mix structure parallel with rib of slab increases reinforced concrete beam 3 newly, its beam width is less than 350mm, depth of beam is < 700mm, be arranged on former precast plate splicing seams 2 places, its axis is parallel with the rib of slab axis of former precast hollow slab 1, in it, be provided with newly-increased beam stirrup 9 and newly-increased beam longitudinal reinforcement 10, on described former precast hollow slab 1, offer and wear muscle hole 8, described newly-increased beam stirrup 9 is worn muscle hole 8, and by wearing the concrete of the parallel newly-increased reinforced concrete beam 3 of brick mix structure of muscle hole 8 perfusion ribs of slab.Drill muscle hole 8 and should not hinder rib of slab, constantly plate muscle.The diameter of described newly-increased beam stirrup and spacing meet the requirement of corresponding antidetonation grade beam stirrup.Generally, in vertical rib of slab direction, the newly-increased reinforced concrete beam 4 of vertical direction can be set, common well word or the horizontal Structural Floor System of rood beam lateral resisting of forming of the newly-increased reinforced concrete beam 3 of the brick mix structure parallel with rib of slab, can improve the lateral resisting ability of structure and the ductility of structure greatly.
The described width of wearing muscle hole 8 is not more than the through-hole diameter in former precast hollow slab 1, and length is 60mm～100mm.
Described former precast hollow slab 1 end face is not in the situation that arranging former concrete folding layer 5, can set up as required newly-increased concrete folding layer 6, in described newly-increased concrete folding layer 6, be provided with the overlapping layers reinforcing bar 7 of bidirectional arrangements, the diameter of described overlapping layers reinforcing bar 7 is not less than 8mm, and distribute spacing is not more than 200mm.The thickness of described newly-increased concrete folding layer 6 is not less than 50mm.
Embodiment bis-is referring to Fig. 1 and Fig. 3, and a kind of brick mix structure parallel with rib of slab increases reinforced concrete beam 3 newly, and its beam width is less than 350mm, and depth of beam is
time, different from embodiment mono-, be provided with together newly-increased beam waist muscle 11, described newly-increased beam waist muscle 11 is by newly-increased beam lacing wire 12 drawknots.
Embodiment tri-is referring to Fig. 1 and Fig. 4, and a kind of brick mix structure parallel with rib of slab increases reinforced concrete beam 3 newly, and its beam width is less than 350mm, and depth of beam is
, different from embodiment bis-, be provided with the newly-increased beam waist muscle 11 of twice, the newly-increased beam waist muscle 11 of per pass is by newly-increased beam lacing wire 12 drawknots.
Embodiment tetra-is referring to Fig. 5 and Fig. 6, and a kind of brick mix structure parallel with rib of slab increases reinforced concrete beam 3 newly, and beam width is not less than 350mm, and depth of beam is < 700mm that different from embodiment mono-, beam width direction arranges the newly-increased additional beam stirrup 13 of twice.
Embodiment five is referring to Fig. 5 and Fig. 7, and a kind of brick mix structure parallel with rib of slab increases reinforced concrete beam 3 newly, and beam width is not less than 350mm, and depth of beam is
time, different from embodiment tetra-, when beam width direction arranges the newly-increased additional beam stirrup of twice 13, along deck-molding direction, be provided with together newly-increased beam waist muscle 11, described newly-increased beam waist muscle 11 is by newly-increased beam lacing wire 12 drawknots.
Embodiment six is referring to Fig. 5 and Fig. 8, and a kind of brick mix structure parallel with rib of slab increases reinforced concrete beam 3 newly, and beam width is not less than 350mm, and depth of beam is
time, different from embodiment five, when beam width direction arranges the newly-increased additional beam stirrup of twice 13, along deck-molding direction, be provided with the newly-increased beam waist muscle 11 of twice, the newly-increased beam waist muscle 11 of per pass is all by increasing beam lacing wire 12 drawknots newly.
Claims (5)
1. a brick mix structure parallel with rib of slab increases reinforced concrete beam (3) newly, it is characterized in that: be arranged on former precast plate splicing seams (2) and locate, its axis is parallel with the rib of slab axis of former precast hollow slab (1), in it, be provided with newly-increased beam stirrup (9) and newly-increased beam longitudinal reinforcement (10), on described former precast hollow slab (1), offer and wear muscle hole (8), described newly-increased beam stirrup (9) is worn muscle hole (8), and by wearing the concrete of the parallel newly-increased reinforced concrete beam (3) of brick mix structure of muscle hole (8) perfusion rib of slab.
2. the newly-increased reinforced concrete beam of a kind of brick mix structure parallel with rib of slab according to claim 1, is characterized in that: described in wear muscle hole (8) width be not more than the through-hole diameter in former precast hollow slab (1), length is 60mm～100mm.
3. a kind of brick mix structure parallel with rib of slab according to claim 1 increases reinforced concrete beam newly, it is characterized in that: described former precast hollow slab (1) end face is not in the situation that arranging former concrete folding layer (5), set up newly-increased concrete folding layer (6), in described newly-increased concrete folding layer (6), be provided with the overlapping layers reinforcing bar (7) of bidirectional arrangements, the diameter of described overlapping layers reinforcing bar (7) is not less than 8mm, and distribute spacing is not more than 200mm.
4. a kind of brick mix structure parallel with rib of slab according to claim 1 increases reinforced concrete beam newly, it is characterized in that: described parallel to newly-increased reinforced concrete beam (3) in the situation that beam section height is not less than 700mm, newly-increased beam waist muscle (11) is set, and described newly-increased beam waist muscle (11) is by newly-increased beam lacing wire (12) drawknot.
5. a kind of brick mix structure parallel with rib of slab according to claim 1 increases reinforced concrete beam newly, it is characterized in that: described parallel to newly-increased reinforced concrete beam (3) in the situation that beam section width is not less than 350mm, newly-increased additional beam stirrup (13) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320482724.5U CN203403692U (en) | 2013-08-08 | 2013-08-08 | Brick-concrete-structure newly-added reinforced concrete beam parallel to rib plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320482724.5U CN203403692U (en) | 2013-08-08 | 2013-08-08 | Brick-concrete-structure newly-added reinforced concrete beam parallel to rib plate |
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| CN203403692U true CN203403692U (en) | 2014-01-22 |
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|---|---|---|---|
| CN201320482724.5U Expired - Fee Related CN203403692U (en) | 2013-08-08 | 2013-08-08 | Brick-concrete-structure newly-added reinforced concrete beam parallel to rib plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060849A (en) * | 2014-07-05 | 2014-09-24 | 刘广义 | Punching, stacking and reinforcing method of concrete hollow slab |
| CN107178216A (en) * | 2016-11-10 | 2017-09-19 | 叶香菲 | Big height brick-concrete composite buildingses reinforcing construction |
| CN110878641A (en) * | 2019-12-10 | 2020-03-13 | 赵枫 | Reinforcing structure adopting superimposed hollow floor slab grid system and new construction method |
-
2013
- 2013-08-08 CN CN201320482724.5U patent/CN203403692U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060849A (en) * | 2014-07-05 | 2014-09-24 | 刘广义 | Punching, stacking and reinforcing method of concrete hollow slab |
| CN107178216A (en) * | 2016-11-10 | 2017-09-19 | 叶香菲 | Big height brick-concrete composite buildingses reinforcing construction |
| CN107178216B (en) * | 2016-11-10 | 2019-04-02 | 叶香菲 | Big height brick-concrete composite buildings reinforcing construction |
| CN110878641A (en) * | 2019-12-10 | 2020-03-13 | 赵枫 | Reinforcing structure adopting superimposed hollow floor slab grid system and new construction method |
| CN110878641B (en) * | 2019-12-10 | 2023-11-07 | 四川大学锦江学院 | Reinforcing structure adopting superimposed hollow floor slab grid system and new construction method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20180808 |
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| CF01 | Termination of patent right due to non-payment of annual fee |