CN204728484U - A kind of precast concrete primary-secondary beam syndeton - Google Patents
A kind of precast concrete primary-secondary beam syndeton Download PDFInfo
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- CN204728484U CN204728484U CN201520444788.5U CN201520444788U CN204728484U CN 204728484 U CN204728484 U CN 204728484U CN 201520444788 U CN201520444788 U CN 201520444788U CN 204728484 U CN204728484 U CN 204728484U
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Abstract
The utility model discloses a kind of precast concrete primary-secondary beam syndeton, comprise precast main beam and prefabricated secondary beam, the section of watering after precast main beam is arranged, and bottom the girder of precast main beam steel bar stress after the section of watering continuously through, reserved girder stirrup in the section of watering after precast main beam, prefabricated secondary beam to stretch into after precast main beam in the section of watering, indulge the direct anchoring of muscle bottom the secondary beam of prefabricated secondary beam or be anchored in precast main beam by additional bar, elongated steel bar stress is laid in the overlapping layers on precast main beam top, elongated steel bar stress is through prefabricated secondary beam top, formwork builds the section of watering after formation.Compared with prior art, the beneficial effects of the utility model are: by improving the connected mode of precast main beam and prefabricated secondary beam, facilitate lifting and the connection of prefabricated units, precast main beam and prefabricated secondary beam switching performance is made to reach the effect being equal to cast-in-place structural, it is firm that node connects, and connects, save material without the need to horizontal bush grouting, reduce cost, construction simple and fast.
Description
Technical field
The utility model belongs to field of civil engineering, relates to a kind of precast concrete primary-secondary beam syndeton.
Background technology
The key of fabricated assembly overall frame construction how to be effectively connected to form an integral structural system by after the prefabricated units on-site hoisting of produce in factory.The installation complexity of connected node region component and concrete pouring quality directly can affect construction speed and the quality of engineering.Therefore, under the prerequisite ensureing structural safety, seeking fabricated assembly overall frame joint method of attachment easy as far as possible, is the problem that current engineering circles needs solution badly.
Precast concrete primary-secondary beam connects can adopt the connected modes such as grout sleeve level connection joint steel bar stress.But adopt above-mentioned connected mode, cost is high, construction trouble.
Utility model content
The utility model needs the problems referred to above solved to be for adopting the connected modes such as grout sleeve level connection joint steel bar stress in above-mentioned prior art, cost is high, to construct troublesome deficiency, and provide a kind of cost that reduces, the precast concrete primary-secondary beam syndeton of construction simple and fast and construction method thereof.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of precast concrete primary-secondary beam syndeton, comprise precast main beam and prefabricated secondary beam, precast main beam overlaps prefabricated secondary beam place arrange after the section of watering, and bottom the girder of precast main beam steel bar stress after the section of watering continuously through, reserved girder stirrup in the section of watering after precast main beam, prefabricated secondary beam to stretch into after precast main beam in the section of watering, indulge the direct anchoring of muscle bottom the secondary beam of prefabricated secondary beam or be anchored in precast main beam by additional bar, and anchorage length is more than or equal to 12d, elongated steel bar stress is laid in the overlapping layers on precast main beam and prefabricated secondary beam top, elongated steel bar stress is through prefabricated secondary beam top, the reinforcing bar of colligation is needed to carry out colligation process, formwork builds the section of watering after formation.
Length after prefabricated secondary beam stretches into precast main beam in the section of watering is more than or equal to 10mm.
The one or both sides of precast main beam overlap prefabricated secondary beam respectively, the mode that bottom the secondary beam of two prefabricated secondary beams, vertical muscle adopts anchoring of staggering highly up and down respectively with precast main beam anchoring.
Precast main beam, prefabricated beam end portion do not arrange shearing resistance groove.
After the two ends of the section of watering stretch out girder waist muscle respectively, set up isodiametric additional waist muscle and be welded to connect with two girder waist muscle respectively.
Compared with prior art, the beneficial effects of the utility model are: by improving the connected mode of precast main beam and prefabricated secondary beam, facilitate lifting and the connection of prefabricated units, precast main beam and prefabricated secondary beam switching performance is made to reach the effect being equal to cast-in-place structural, it is firm that node connects, and connects, save material without the need to horizontal bush grouting, reduce cost, construction simple and fast.
Accompanying drawing explanation
Fig. 1 is the top view of precast concrete primary-secondary beam syndeton of the present utility model;
Fig. 2 is the A-A sectional view of precast concrete primary-secondary beam syndeton;
Fig. 3 is the B-B sectional view of precast concrete primary-secondary beam syndeton.
Wherein, 1, precast main beam, 2, prefabricated secondary beam, 3, after the section of watering, 4, overlapping layers, 5, girder stirrup, 6, elongated steel bar stress, 7, shearing resistance groove, 8, girder waist muscle, 9, additional waist muscle.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As shown in Figure 1, a kind of precast concrete primary-secondary beam syndeton, comprise precast main beam 1 and prefabricated secondary beam 2, precast main beam 1 overlaps prefabricated secondary beam 2 place arrange after the section of watering 3, and bottom the girder of precast main beam 1 steel bar stress after the section of watering 3 continuously through, reserved girder stirrup 5 in the section of watering 3 after precast main beam 1, prefabricated secondary beam 2 to stretch into after precast main beam 1 in the section of watering 3, indulge the direct anchoring of muscle bottom the secondary beam of prefabricated secondary beam 2 or be anchored in precast main beam 1 by additional bar, and anchorage length is more than or equal to 12d, elongated steel bar stress 6 is laid in the overlapping layers 4 on precast main beam 1 and prefabricated secondary beam 2 top, elongated steel bar stress 6 is through prefabricated secondary beam 2 top, the reinforcing bar of colligation is needed to carry out colligation process, formwork builds the section of watering 3 after formation.
Length after prefabricated secondary beam 2 stretches into precast main beam 1 in the section of watering 3 is more than or equal to 10mm.
The mode that bottom the secondary beam that the one or both sides of precast main beam 1 overlap the prefabricated secondary beam 2 of prefabricated secondary beam 2, two respectively, vertical muscle adopts anchoring of staggering highly up and down respectively with precast main beam 1 anchoring.
Precast main beam 1, prefabricated secondary beam 2 end arrange shearing resistance groove 7 respectively.
After the two ends of the section of watering 3 stretch out girder waist muscle 8 respectively, set up isodiametric additional waist muscle 9 and be welded to connect with two girder waist muscle 8 respectively.
The construction method of precast concrete primary-secondary beam syndeton, comprises the following steps:
(1), manufacture precast main beam 1 and prefabricated secondary beam 2, precast main beam 1 overlaps prefabricated secondary beam 2 place arrange after the section of watering 3, and bottom the girder of precast main beam 1 steel bar stress after the section of watering 3 continuously through, reserved girder stirrup 5 in the section of watering 3 after precast main beam 1;
(2), hoisting prefabricated girder 1 and prefabricated secondary beam 2, prefabricated secondary beam 2 is stretched into after precast main beam 1 in the section of watering 3, the vertical direct anchoring of muscle or be anchored in precast main beam 1 by additional bar bottom the secondary beam of prefabricated secondary beam 2, and anchorage length is more than or equal to 12d;
(3), lay elongated steel bar stress 6 in the overlapping layers 4 on precast main beam 1 and prefabricated secondary beam 2 top, elongated steel bar stress 6 is through prefabricated secondary beam 2 top;
(4), formwork supporting plate, in the bottom of the side of precast main beam 1, the side of prefabricated secondary beam 2 and precast main beam 1, template is set;
(5), to needing the reinforcing bar of colligation to carry out colligation process;
(6), build after the section of watering 3, make precast main beam 1 and prefabricated secondary beam 2 form entirety.
Compared with prior art, the beneficial effects of the utility model are: by improving the connected mode of precast main beam and prefabricated secondary beam, facilitate lifting and the connection of prefabricated units, precast main beam and prefabricated secondary beam switching performance is made to reach the effect being equal to cast-in-place structural, it is firm that node connects, and connects, save material without the need to horizontal bush grouting, reduce cost, construction simple and fast.
Above preferred embodiment of the present utility model is described.It is to be appreciated that the utility model is not limited to above-mentioned particular implementation, the equipment wherein do not described in detail to the greatest extent and structure are construed as to be implemented with the common mode in this area; Any those of ordinary skill in the art, do not departing under technical solutions of the utility model ambit, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or being revised as the Equivalent embodiments of equivalent variations, this does not affect flesh and blood of the present utility model.Therefore, every content not departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solutions of the utility model protection.
Claims (5)
1. a precast concrete primary-secondary beam syndeton, comprise precast main beam and prefabricated secondary beam, it is characterized in that: precast main beam overlaps prefabricated secondary beam place arrange after the section of watering, and bottom the girder of precast main beam steel bar stress after the section of watering continuously through, reserved girder stirrup in the section of watering after precast main beam, prefabricated secondary beam to stretch into after precast main beam in the section of watering, indulge the direct anchoring of muscle bottom the secondary beam of prefabricated secondary beam or be anchored in precast main beam by additional bar, and anchorage length is more than or equal to 12d, elongated steel bar stress is laid in the overlapping layers on precast main beam and prefabricated secondary beam top, elongated steel bar stress is through prefabricated secondary beam top, the reinforcing bar of colligation is needed to carry out colligation process, formwork builds the section of watering after formation.
2. precast concrete primary-secondary beam syndeton according to claim 1, is characterized in that: the length after prefabricated secondary beam stretches into precast main beam in the section of watering is more than or equal to 10mm.
3. precast concrete primary-secondary beam syndeton according to claim 1, it is characterized in that: the one or both sides of precast main beam overlap prefabricated secondary beam respectively, the mode that bottom the secondary beam of two prefabricated secondary beams, vertical muscle adopts anchoring of staggering highly up and down respectively with precast main beam anchoring.
4. precast concrete primary-secondary beam syndeton according to claim 1, is characterized in that: precast main beam, prefabricated beam end portion do not arrange shearing resistance groove.
5. precast concrete primary-secondary beam syndeton according to claim 1, is characterized in that: after the two ends of the section of watering stretch out girder waist muscle respectively, set up isodiametric additional waist muscle and be welded to connect with two girder waist muscle respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520444788.5U CN204728484U (en) | 2015-06-26 | 2015-06-26 | A kind of precast concrete primary-secondary beam syndeton |
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| CN201520444788.5U CN204728484U (en) | 2015-06-26 | 2015-06-26 | A kind of precast concrete primary-secondary beam syndeton |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040829A (en) * | 2015-06-26 | 2015-11-11 | 南京长江都市建筑设计股份有限公司 | Prefabricated concrete main beam and secondary beam connecting structure and construction method thereof |
| CN108868154A (en) * | 2017-05-12 | 2018-11-23 | 五冶集团上海有限公司 | The Epoxy Resin Coated Steel Bars binding method of concrete beam mould board under corrosive environment |
-
2015
- 2015-06-26 CN CN201520444788.5U patent/CN204728484U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040829A (en) * | 2015-06-26 | 2015-11-11 | 南京长江都市建筑设计股份有限公司 | Prefabricated concrete main beam and secondary beam connecting structure and construction method thereof |
| CN105040829B (en) * | 2015-06-26 | 2017-11-03 | 南京长江都市建筑设计股份有限公司 | A kind of precast concrete primary-secondary beam attachment structure and its construction method |
| CN108868154A (en) * | 2017-05-12 | 2018-11-23 | 五冶集团上海有限公司 | The Epoxy Resin Coated Steel Bars binding method of concrete beam mould board under corrosive environment |
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