CN103590487A - Cast-in-place reinforced concrete haunched beam structure - Google Patents
Cast-in-place reinforced concrete haunched beam structure Download PDFInfo
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- CN103590487A CN103590487A CN201310565030.2A CN201310565030A CN103590487A CN 103590487 A CN103590487 A CN 103590487A CN 201310565030 A CN201310565030 A CN 201310565030A CN 103590487 A CN103590487 A CN 103590487A
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000011065 in-situ storage Methods 0.000 claims description 15
- 239000004567 concrete Substances 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The invention discloses a cast-in-place reinforced concrete haunched beam structure. The cast-in-place reinforced concrete haunched beam structure comprises a plurality of perpendicularly arranged frame columns, the tops of the frame columns are horizontally connected through frame beams, beam supporting seat haunched areas are arranged on the portions, where the frame columns and the frame beams are connected, of a cast-in-place reinforced concrete beam supporting seat, inclined rebars are arranged in the haunched areas, and the inclined rebars and rebars on the lower portions of beam midspan rebars are anchored mutually. Because the portions of the beam supporting seat are haunched, the height of the cross section of the supporting seat is increased, and reinforcing bars for the portions of the beam supporting seat are reduced under the action of the hogging moment; on the premise that internal force calculation is met, on the one hand, the using amount of concrete is effectively reduced, and the self weight of the structure is reduced, and on the other hand, the form of the cross section of the beam fits into an internal force graphic, the functions of the rebars on all the portions are fully played, and the long-span structure achieves the purposes of being light, attractive, economical and reasonable; moreover, the midspan height of the beam is relatively small, and thus the cast-in-place reinforced concrete haunched beam structure is favorable for layout of pipelines, and the clear height of a building room is increased.
Description
Technical field
The present invention relates to a kind of cast-in-situ steel reinforced concrete haunched beam structure, belong to design of reinforced concrete structure and building technology field.
Background technology
Monolithic reinforced concrete structure range of application is extremely wide, and cast-in-situ steel reinforced concrete beam is one of most important member in structure.Generally, reinforced concrete beam is often contour, when there is the situation that span is large or bearing load is larger, generally by increasing deck-molding, solves problem.While adopting the jowar such as conventional way employing to calculate and design, deck-molding is larger, and overall structure increases with material and deadweight, and cost is corresponding increase also.Present stage, more abundant in the research of application aspect conversion beam for haunched beam, part test result of study shows: the frame with haunch conversion beam props up short-shear wall structure and has good anti-seismic performance, and the hysteretic loop of its hysteresis loop is full, and skeleton curve descending branch is milder; Ductility meets the requirement that earthquake resistant code is greater than 4 to structure ductility coefficient completely; Each stiffness layer distributes more even, and in its elasticity and elastic and plastic deformation process, each layer of deformation performance is comparatively stable, has effectively overcome the weak phenomenon of bottom thin; Surrender mechanism is the ductile yield mechanism of " strong post, weak beam, stronger node " that energy dissipation is good.Extend thus, haunched beam also can play good effect in large-span frame structure.
Summary of the invention
Technical problem to be solved by this invention is the defect that overcomes prior art, and a kind of cast-in-situ steel reinforced concrete haunched beam structure is provided, and is reducing the concrete amount of beam, is alleviating under the condition of dead load, and the ultimate load that can bear is larger.
For solving the problems of the technologies described above, the invention provides a kind of cast-in-situ steel reinforced concrete haunched beam structure, comprise vertically disposed many frame columns, frame column top is by Vierendeel girder level connection joint, it is characterized in that, what frame column was connected with Vierendeel girder arranges beam support haunch region at cast-in-situ steel reinforced concrete beam support position, at the oblique reinforcing bar of haunch area configurations, forms mutual anchor with the reinforcing bar of reinforcing bar bottom in girder span.
Beam reinforced steel bar comprises reinforcing bar in reinforcing bar at the bottom of haunch place beam, girder span, and in girder span, at the bottom of the beam of reinforcing bar, at the bottom of reinforcing bar and haunch place beam, reinforcing bar forms mutual anchor.
At the bottom of beam in girder span in reinforcing bar, anchorage length of steel bar value is 40d, and d is bar diameter.
At the bottom of haunch place beam, to anchor into the anchorage length value in Vierendeel girder be 20d to reinforcing bar, and d is bar diameter.
The beneficial effect that the present invention reaches:
(1) reduce the concrete amount of beam;
(2) alleviate dead load, reduce geological process;
(3) ultimate load that haunched beam can bear increases;
(4) height in girder span is relatively little, is conducive to the laying of pipeline, has increased stud;
(5) simple structure, meets code requirement, safe and reliable;
(6) effectively control cost.
Accompanying drawing explanation
Fig. 1 is the floor map of embodiment of the present invention cast-in-situ steel reinforced concrete haunched beam structure;
Fig. 2 is embodiment of the present invention cast-in-situ steel reinforced concrete haunched beam structure section schematic diagram (being the A-A section in Fig. 1);
Wherein: 1 is frame column, 2 is Vierendeel girder, and 3 is beam support haunch region, and 4 is reinforcing bar at the bottom of haunch place beam, and 5 is reinforcing bar in girder span.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples are only for technical scheme of the present invention is more clearly described, and can not limit the scope of the invention with this.
As depicted in figs. 1 and 2, comprise vertically disposed many frame columns 1, frame column 1 top is by Vierendeel girder 2 level connection joints, what frame column 1 was connected with Vierendeel girder 2 arranges beam support haunch region 3 at cast-in-situ steel reinforced concrete beam support position, configuration haunch region 3 oblique reinforcing bar and and girder span in reinforcing bar 5 lower rebar form mutual anchor, realized increase bearing bending resistant section.
Cast-in-situ steel reinforced concrete haunched beam structure work progress is as follows:
First setting up flooring supports, lay beam-slab template, stay and establish haunch region 3, next colligation beam reinforced steel bar, comprise reinforcing bar 4 at the bottom of haunch place beam, reinforcing bar 5 location in girder span, and it is as follows to notice that beam reinforced steel bar anchoring requires: the mutual anchor of reinforcing bar 4 formation at the bottom of reinforcing bar and haunch place beam at the bottom of the beam of reinforcing bar 5 in girder span, at the bottom of haunch place beam, reinforcing bar 4 anchors in frame column 1 and Vierendeel girder 2, wherein, at the bottom of beam in girder span in reinforcing bar 5, anchorage length of steel bar value is that 40d(d is bar diameter), at the bottom of haunch place beam, to anchor into the anchorage length value in Vierendeel girder 2 be 20d to reinforcing bar 4, top surface of the beam reinforcing bar is arranged by normal mode, last concreting.
Take the method to beam support position haunch, increased the depth of section of bearing, beam support position arrangement of reinforcement under the effect of hogging moment is reduced; Meeting under the prerequisite of internal force calculating, effectively reduced concrete amount on the one hand, alleviated dead load, make on the other hand the matching of section forms of beam and internal force (moment of flexure) figure, given full play to the effect of each position reinforcing bar.Realized the lightly object of attractive in appearance, economical rationality of longspan structure.And make the height in girder span relatively little, be conducive to the laying of pipeline, increased building stud.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the technology of the present invention principle; can also make some improvement and distortion, these improvement and distortion also should be considered as protection scope of the present invention.
Claims (4)
1. a cast-in-situ steel reinforced concrete haunched beam is constructed, comprise vertically disposed many frame columns, frame column top is by Vierendeel girder level connection joint, it is characterized in that, what frame column was connected with Vierendeel girder arranges beam support haunch region at cast-in-situ steel reinforced concrete beam support position, at the oblique reinforcing bar of haunch area configurations, form mutual anchor with the reinforcing bar of reinforcing bar bottom in girder span.
2. cast-in-situ steel reinforced concrete haunched beam according to claim 1 structure, is characterized in that, beam reinforced steel bar comprises reinforcing bar in reinforcing bar at the bottom of haunch place beam, girder span, and in girder span, at the bottom of the beam of reinforcing bar, at the bottom of reinforcing bar and haunch place beam, reinforcing bar forms mutual anchor.
3. cast-in-situ steel reinforced concrete haunched beam structure according to claim 1, is characterized in that, at the bottom of the beam in girder span in reinforcing bar, anchorage length of steel bar value is 40d, and d is bar diameter.
4. cast-in-situ steel reinforced concrete haunched beam according to claim 1 structure, is characterized in that, at the bottom of haunch place beam, to anchor into the anchorage length value in Vierendeel girder be 20d to reinforcing bar, and d is bar diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310565030.2A CN103590487A (en) | 2013-11-14 | 2013-11-14 | Cast-in-place reinforced concrete haunched beam structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310565030.2A CN103590487A (en) | 2013-11-14 | 2013-11-14 | Cast-in-place reinforced concrete haunched beam structure |
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| CN103590487A true CN103590487A (en) | 2014-02-19 |
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| CN201310565030.2A Pending CN103590487A (en) | 2013-11-14 | 2013-11-14 | Cast-in-place reinforced concrete haunched beam structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714968A (en) * | 2016-02-24 | 2016-06-29 | 郭猛 | Concrete floor optimized design method capable of relieving earthquake damages on strong beams and weak columns |
| CN111005447A (en) * | 2019-12-28 | 2020-04-14 | 中天建设集团有限公司 | Rigid connection of prefabricated special-shaped beams and grouting anchoring device and method in axillary area |
| CN112982780A (en) * | 2021-04-06 | 2021-06-18 | 周俊利 | Oblique crossing haunched frame beam type floor structure |
| CN113089870A (en) * | 2021-04-09 | 2021-07-09 | 深圳市市政设计研究院有限公司 | Energy dissipation and vibration reduction supporting structure and construction method thereof |
| CN119593613A (en) * | 2025-01-15 | 2025-03-11 | 中国建筑第八工程局有限公司 | Method for removing and modifying insufficient net height of ramp |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4505087A (en) * | 1983-03-14 | 1985-03-19 | U.S. Filigree Wideslab, Inc. | Method of construction of concrete decks with haunched supporting beams |
| CN201794161U (en) * | 2010-09-28 | 2011-04-13 | 杨峰 | Prefabricated integrally cast building structure system with cast-in-place haunched beam |
| CN102418425A (en) * | 2010-09-28 | 2012-04-18 | 杨峰 | Prefabrication integral casting building structure system with cast-in-site haunched beams, and construction method for prefabrication integral casting building structure system |
| CN202866083U (en) * | 2012-09-26 | 2013-04-10 | 苏州工业园区设计研究院股份有限公司 | Reinforced concrete floor structure |
| CN203066231U (en) * | 2012-12-27 | 2013-07-17 | 深圳奥意建筑工程设计有限公司 | Haunching type large panel structure for basement |
| CN203583659U (en) * | 2013-11-14 | 2014-05-07 | 苏州工业园区设计研究院股份有限公司 | Cast-in-place reinforced concrete haunched beam structure |
-
2013
- 2013-11-14 CN CN201310565030.2A patent/CN103590487A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4505087A (en) * | 1983-03-14 | 1985-03-19 | U.S. Filigree Wideslab, Inc. | Method of construction of concrete decks with haunched supporting beams |
| CN201794161U (en) * | 2010-09-28 | 2011-04-13 | 杨峰 | Prefabricated integrally cast building structure system with cast-in-place haunched beam |
| CN102418425A (en) * | 2010-09-28 | 2012-04-18 | 杨峰 | Prefabrication integral casting building structure system with cast-in-site haunched beams, and construction method for prefabrication integral casting building structure system |
| CN202866083U (en) * | 2012-09-26 | 2013-04-10 | 苏州工业园区设计研究院股份有限公司 | Reinforced concrete floor structure |
| CN203066231U (en) * | 2012-12-27 | 2013-07-17 | 深圳奥意建筑工程设计有限公司 | Haunching type large panel structure for basement |
| CN203583659U (en) * | 2013-11-14 | 2014-05-07 | 苏州工业园区设计研究院股份有限公司 | Cast-in-place reinforced concrete haunched beam structure |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714968A (en) * | 2016-02-24 | 2016-06-29 | 郭猛 | Concrete floor optimized design method capable of relieving earthquake damages on strong beams and weak columns |
| CN105714968B (en) * | 2016-02-24 | 2019-02-19 | 郭猛 | Mitigate the concrete floor optimum design method of the weak column earthquake of brutal |
| CN111005447A (en) * | 2019-12-28 | 2020-04-14 | 中天建设集团有限公司 | Rigid connection of prefabricated special-shaped beams and grouting anchoring device and method in axillary area |
| CN111005447B (en) * | 2019-12-28 | 2025-09-16 | 中天建设集团有限公司 | Grouting anchoring device and method for rigid connection prefabricated special-shaped Liang Jiaye area |
| CN112982780A (en) * | 2021-04-06 | 2021-06-18 | 周俊利 | Oblique crossing haunched frame beam type floor structure |
| CN113089870A (en) * | 2021-04-09 | 2021-07-09 | 深圳市市政设计研究院有限公司 | Energy dissipation and vibration reduction supporting structure and construction method thereof |
| CN119593613A (en) * | 2025-01-15 | 2025-03-11 | 中国建筑第八工程局有限公司 | Method for removing and modifying insufficient net height of ramp |
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Application publication date: 20140219 |