CN103938790A - Manufacturing process of constraint-removal plate on beam end - Google Patents
Manufacturing process of constraint-removal plate on beam end Download PDFInfo
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- CN103938790A CN103938790A CN201410108282.7A CN201410108282A CN103938790A CN 103938790 A CN103938790 A CN 103938790A CN 201410108282 A CN201410108282 A CN 201410108282A CN 103938790 A CN103938790 A CN 103938790A
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- layer
- mortar
- restraining plate
- asphalt
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 46
- 239000010426 asphalt Substances 0.000 claims abstract description 39
- 239000004567 concrete Substances 0.000 claims abstract description 15
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 230000000452 restraining effect Effects 0.000 claims description 35
- 239000004576 sand Substances 0.000 claims description 10
- 239000004033 plastic Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 108010068370 Glutens Proteins 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 239000010883 coal ash Substances 0.000 claims description 3
- 235000021312 gluten Nutrition 0.000 claims description 3
- 239000013521 mastic Substances 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000002085 persistent effect Effects 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 2
- 230000001680 brushing effect Effects 0.000 abstract 1
- 238000013461 design Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 239000003643 water by type Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The invention relates to a manufacturing process of a constraint-removal plate on a beam end, which comprises the following steps: 1)manufacturing a template according to size of the constraint-removal plate, wherein the constraint-removal plate is in a cuboid shape, the height H of the constraint-removal plate is same with the clear spacing between an engineering floor bottom bar and a surface bar, the value of the length s is taken according to clear span of the beam, the length s is 1/10-1/12 of the clear span, and the thickness of the constraint-removal plate is 45-60mm; 2)pouring a fine aggregate concrete layer, adding glass fiber in the central section of the fine aggregate concrete; 3)brushing an asphalt layer; 4) pouring an asphalt mortar layer; wherein 4.1)making asphalt mortar; 4.2)calculating the entering quantity of the asphalt mortar according to weight of 1.6g/cm<3> after moulding, wherein entering quantity of the asphalt mortar is no higher than 120 DEG C and no lower than 80 DEG C, paving after a mould is introduced, paving a layer of glass fiber, continuously pressurizing for 3.0MPa for no less than 20 minutes, reducing the temperature to room temperature and demoulding. The method is capable of releasing the constraint between the beam and the plate and increasing the anti-knock effect.
Description
Technical field
The present invention relates to concrete frame structure, especially a kind of manufacturing process of beam-ends of concrete frame.
Background technology
The antidetonation Main Design Principles of concrete frame structure is " strong column and weak beam ", " strong shear capacity and weak bending capacity " and " the weak member of strong node ", according to this design principles, in the time that concrete frame structure meets with geological process, first frame construction produces and destroys on beam, and ensure post and Nodes safety, thereby ensureing that overall structure is unlikely collapses.The disaster of China's Wenchuan earthquake shows, the whole superstructure that waters adopting at present extensively can effectively prevent that floor from departing from and hurts sb.'s feelings, but cause a large amount of frame construction shafts to destroy and caused collapsing of structure, and first beam does not destroy, even crack is all seldom seen, and the design principles of this description architecture fails effectively to realize.Analyzing one of reason is that the existing design specifications of China is to form from summary and the corresponding experimental study achievement refinement of earthquake disaster, due to the restriction of test conditions, existing achievement in research major part is for simple Beam-post Frame Structure, and be the whole building cover structure that waters form less than what consider current a large amount of employings comprehensively, this whole building cover structure that waters is by beam and floor monobloc cast, in the time running into earthquake horizontal applied force, the rigidity of floor on horizontal plane is very big, cause the shearing resistance of beam, anti-bending bearing capacity increases substantially, cannot produce controlled destruction and discharge seismic forces at beam-ends, cause on the contrary a large amount of frame construction shafts to destroy and caused collapsing of structure, cause typical " the weak post of brutal " to destroy general layout, thereby cause structural entity to be collapsed.
Although after Wenchuan earthquake, also have many scholars to propose the thinking of many head it offs, major part is to attempt by adopting some coefficients in design, suitably weakens the bearing capacity of beam and improves the intensity of shaft.Nonetheless, whole watering compared with the rigidity of superstructure and the rigidity of shaft, is also difficult to reach the designing requirement of " strong column and weak beam ", when violent earthquake, still can destroys at shaft temporarily.
Summary of the invention
The deficiency that bending resistance effective area is large, rigidity is large, bearing capacity ratio shaft is large, anti seismic efficiency is poor of the beam-ends existing for the beam-ends that overcomes existing concrete frame structure and board connecting structure, the invention provides the manufacturing process that a kind of beam-ends of removing constraint between beam and plate, lifting anti seismic efficiency removes restraining plate.
The technical solution adopted for the present invention to solve the technical problems is:
Beam-ends goes a manufacturing process for restraining plate, comprises the steps:
1) make template according to the dimensional requirement of removing restraining plate
The described restraining plate that goes is cuboid, goes the height h of restraining plate identical with gluten clear spacing with muscle at the bottom of Engineering Floor used, goes the length s of restraining plate according to the clear span value of beam, is taken as 1/10～1/12 of clear span, and the thickness of restraining plate is 45～60mm;
Make template according to above-mentioned size;
2) water pea gravel concreten layer
Adopt pea gravel concreten, microlith cobble-stone diameter is not more than 8mm, and thickness is got 15～25mm, and pea gravel concreten strength grade is not less than C20;
Add glass fiber at pea gravel concreten layer middle part;
3) brush bitumen layer
At the hot petroleum bitumen of surface brush one deck of pea gravel concreten layer, asphalt temperature when brush pitch is not less than 80 ° of C, and pitch thickness is not less than 2mm;
4) build asphalt mortar, bituminous mortar layer
4.1) make asphalt mortar, bituminous mortar, first become rubber cement with pitch with coal ash for manufacturing, both weight ratios are 1:1, then add river sand, the maximum particle diameter <4.0mm of river sand, the ratio of asphalt mastic and river sand is also 1:1, stir, obtain asphalt mortar, bituminous mortar;
4.2) asphalt mortar, bituminous mortar enter modulus amount by moulding after severe be 1.6g/cm
3calculate, the molding temperature of asphalt mortar, bituminous mortar, not higher than 120 ° of C, is not less than 80 ° of C, shakeouts after entering mould, and spreads layer of glass in the above, and persistent pressure 3.0MPa is no less than 20 minutes, and equitemperature is down to the demoulding after room temperature.
Further; described gross thickness of removing restraining plate comprises the pea gravel concreten layer thickness of bottom and the asphalt mortar, bituminous mortar layer thickness on top; wherein; pea gravel concreten layer is identical with the side concrete cover of engineering central sill; the desirable 20mm of average; the thickness of asphalt mortar, bituminous mortar layer is not less than 25mm, is not more than 40mm.
In described step (1), described template is wooden form, plastic template or steel form.Certainly, also can select other templates.
In described step (1), described template is divided into bed die.Also can not establish bed die.
Technical conceive of the present invention is: be the target that can realize " strong column and weak beam " as the used time at non-floor by original experimental study achievement and method for designing, so also can be for current monobloc cast floor structural form, adopt and remove the constraint of plate to beam at beam-ends, concrete by beam-ends position floor and beam is isolated, make beam-ends be relatively independent of floor, with the relative pure bean column node of post composition, when geological process is come interim, beam-ends is independently born geological process power, just can produce plastic hinge at beam-ends by current method for designing, a large amount of seismic energies is consumed among the distortion of plastic hinge, thereby reach the design object that ensures that first shaft and node do not destroy.This invention is just to provide a kind of beam-ends and removes constrained procedure, is exactly mainly to have designed a kind of sheet material, and beam-ends is separated with the concrete of floor, in the time of geological process, can make beam-ends in relatively independent state, when without geological process, keep the globality of floor, unlikely leaking.
Be based upon on the force analysis of concrete frame structure beam-ends, due to the participation work of floor, the bending resistance net sectional area of beam-ends increased, and be difficult for forming plastic hinge.The restraining plate that goes of the present invention is intended to remove being connected of plate and beam, allows the bending resistance net sectional area of beam-ends reduce, and the locational bearing capacity of beam-ends is less than the bearing capacity of shaft.Require for the making of removing restraining plate to be:, cutting off in beam-ends is connected with floor slab structure concrete, also to make building cover structure maintenance globality, not affect the use function of floor, can not be in the partition place generation phenomenon such as leak; Consider that superstructure is whole and water construction technology in process, go the restraining plate setting can not be too complicated.
Beneficial effect of the present invention is mainly manifested in: remove constraint, lifting anti seismic efficiency between beam and plate.
Brief description of the drawings
Fig. 1 is the schematic diagram of template, wherein, 1 bed die that is template, bed die can have also and can not have, 2 side forms that are template, side form has two of left and right, and 3 is end mould, before and after end mould has two.
Fig. 2 is the schematic diagram of restraining plate, wherein, 4 be pea gravel concreten layer, 5 for asphalt mortar, bituminous mortar layer, 6 is glass layer, h is for removing restraining plate height, the length that s is restraining plate, n is the thickness of pea gravel concreten layer, n is the thickness of asphalt mortar, bituminous mortar layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
See figures.1.and.2, a kind of beam-ends goes the manufacturing process of restraining plate, comprises the steps:
1) require to make template according to board dimension
The three-dimensional dimension that removes restraining plate is mainly according to floor size in engineering and definite, template can be wooden form, plastic template or steel form, can divide into bed die, while having casting platform condition, can not establish bed die, go restraining plate height h identical with gluten clear spacing with muscle at the bottom of Engineering Floor used, go the length s of restraining plate according to the clear span value of beam, be taken as 1/10～1/12 of clear span.
The thickness of restraining plate is 45～60mm;
2) water pea gravel concreten layer
To be attached to beam-ends stirrup outside owing to going the one side of restraining plate; for the surface that makes beam-ends and other position of beam body is consistent; in protection beam, reinforcing bar is in alkali ambient conditions; prevent that reinforcing bar from getting rusty; go restraining plate one side to adopt pea gravel concreten; microlith cobble-stone diameter is not more than 8mm, and the general value that thickness is got concrete cover is 20mm, and pea gravel concreten strength grade is not less than C20.Meanwhile, for preventing the fragmentation of pea gravel concreten, add glass fiber at pea gravel concreten layer middle part.
3) brush bitumen layer
For restraining plate is combined well with pea gravel concreten layer, at the hot petroleum bitumen of pea gravel concreten surface brush one deck, the asphalt temperature of brush when pitch not low with 80 ° of C, pitch thickness is not less than 2mm.
4) build asphalt mortar, bituminous mortar layer
Consider that restraining plate need to have certain elasticity, and there is the effect of waterproof.Therefore select asphalt mortar, bituminous mortar as stock, first become rubber cement with pitch with coal ash for manufacturing, both weight ratios are 1:1, then add river sand, the maximum particle diameter <4.0mm of river sand, the ratio of asphalt mastic and river sand is also 1:1, after stirring, enters mould.Sand asphalt slurry enter modulus amount by moulding after severe be 1.6g/cm
3calculate, the molding temperature of asphalt mortar, bituminous mortar, not higher than 120 ° of C, is not less than 80 ° of C, is advisable with 100 ° of C left and right, shakeouts after entering mould, and spreads layer of glass in the above, and persistent pressure 3.0MPa is no less than 20 minutes, and equitemperature is down to the demoulding after room temperature.
In the present embodiment; go the gross thickness of restraining plate to comprise the pea gravel concreten layer thickness of bottom and the asphalt mortar, bituminous mortar layer thickness on top; wherein pea gravel concreten layer should be identical with the side concrete cover of engineering central sill; the desirable 20mm of average; the thickness of asphalt mortar, bituminous mortar layer is not less than 25mm, is not more than 40mm, according to the slab thickness value of engineering used; the large person of slab thickness gets large value, general (slab thickness 90mm～100mm) desirable 30mm.
Claims (4)
1. beam-ends goes a manufacturing process for restraining plate, it is characterized in that: described manufacturing process comprises the steps:
1) make template according to the dimensional requirement of removing restraining plate
The described restraining plate that goes is cuboid, goes the height h of restraining plate identical with gluten clear spacing with muscle at the bottom of Engineering Floor used, goes the length s of restraining plate according to the clear span value of beam, is taken as 1/10～1/12 of clear span, and the thickness of restraining plate is 45～60mm;
Make template according to above-mentioned size;
2) water pea gravel concreten layer
Adopt pea gravel concreten, microlith cobble-stone diameter is not more than 8mm, and thickness is got 15～25mm, and pea gravel concreten strength grade is not less than C20;
Add glass fiber at pea gravel concreten layer middle part;
3) brush bitumen layer
At the hot petroleum bitumen of surface brush one deck of pea gravel concreten layer, asphalt temperature when brush pitch is not less than 80 ° of C, and pitch thickness is not less than 2mm;
4) build asphalt mortar, bituminous mortar layer
4.1) make asphalt mortar, bituminous mortar, first become rubber cement with pitch with coal ash for manufacturing, both weight ratios are 1:1, then add river sand, the maximum particle diameter <4.0mm of river sand, the ratio of asphalt mastic and river sand is also 1:1, stir, obtain asphalt mortar, bituminous mortar;
4.2) asphalt mortar, bituminous mortar enter modulus amount by moulding after severe be 1.6g/cm
3calculate, the molding temperature of asphalt mortar, bituminous mortar, not higher than 120 ° of C, is not less than 80 ° of C, shakeouts after entering mould, and spreads layer of glass in the above, and persistent pressure 3.0MPa is no less than 20 minutes, and equitemperature is down to the demoulding after room temperature.
2. the manufacturing process that a kind of beam-ends as claimed in claim 1 removes restraining plate; it is characterized in that: described in go the gross thickness of restraining plate to comprise the pea gravel concreten layer thickness of bottom and the asphalt mortar, bituminous mortar layer thickness on top; wherein; pea gravel concreten layer is identical with the side concrete cover of engineering central sill; average is got 20mm; the thickness of asphalt mortar, bituminous mortar layer is not less than 25mm, is not more than 40mm.
3. the manufacturing process that a kind of beam-ends as claimed in claim 1 or 2 removes restraining plate, is characterized in that: in described step (1), described template is wooden form, plastic template or steel form.
4. the manufacturing process that a kind of beam-ends as claimed in claim 3 removes restraining plate, is characterized in that: in described step (1), described template is divided into bed die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410108282.7A CN103938790B (en) | 2014-03-21 | 2014-03-21 | A kind of beam-ends goes the manufacturing process of restraining plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410108282.7A CN103938790B (en) | 2014-03-21 | 2014-03-21 | A kind of beam-ends goes the manufacturing process of restraining plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103938790A true CN103938790A (en) | 2014-07-23 |
| CN103938790B CN103938790B (en) | 2016-01-20 |
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| CN201410108282.7A Expired - Fee Related CN103938790B (en) | 2014-03-21 | 2014-03-21 | A kind of beam-ends goes the manufacturing process of restraining plate |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5660017A (en) * | 1994-12-13 | 1997-08-26 | Houghton; David L. | Steel moment resisting frame beam-to-column connections |
| CN2878569Y (en) * | 2006-02-28 | 2007-03-14 | 济南大学 | Rolled light wall board |
| CN201078050Y (en) * | 2007-07-10 | 2008-06-25 | 南京丹普科技工程有限公司 | Flection restrict dissipating energy support with gap and antiskid hump |
| CN101863069A (en) * | 2010-05-29 | 2010-10-20 | 闫丕春 | Manufacture method of inner wall plate |
| CN102002985A (en) * | 2010-10-20 | 2011-04-06 | 广州市壁神新型建材有限公司 | Heat-sound insulating lightweight concrete composite wallboard and manufacturing method thereof |
-
2014
- 2014-03-21 CN CN201410108282.7A patent/CN103938790B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5660017A (en) * | 1994-12-13 | 1997-08-26 | Houghton; David L. | Steel moment resisting frame beam-to-column connections |
| CN2878569Y (en) * | 2006-02-28 | 2007-03-14 | 济南大学 | Rolled light wall board |
| CN201078050Y (en) * | 2007-07-10 | 2008-06-25 | 南京丹普科技工程有限公司 | Flection restrict dissipating energy support with gap and antiskid hump |
| CN101863069A (en) * | 2010-05-29 | 2010-10-20 | 闫丕春 | Manufacture method of inner wall plate |
| CN102002985A (en) * | 2010-10-20 | 2011-04-06 | 广州市壁神新型建材有限公司 | Heat-sound insulating lightweight concrete composite wallboard and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 邱海 等: "频率约束板结构拓扑优化", 《固体力学学报》, vol. 33, no. 2, 30 April 2012 (2012-04-30) * |
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| CN103938790B (en) | 2016-01-20 |
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Owner name: ZHEJIANG UNIVERSITY OF TECHNOLOGY ENGINEERING DESI Free format text: FORMER OWNER: ZHEJIANG POLYTECHNICAL UNIVERSITY Effective date: 20150721 |
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Effective date of registration: 20150721 Address after: 310017, Zhejiang, Hangzhou province Jianggan District 42 bright moon bridge road five building Applicant after: ZHEJIANG JIELI CONSTRUCTION Group Ltd. Applicant after: ZHEJIANG UNIVERSITY OF TECHNOLOGY ENGINEERING DESIGN GROUP Co.,Ltd. Applicant after: ZHEJIANG University OF TECHNOLOGY Address before: 310017, Zhejiang, Hangzhou province Jianggan District 42 bright moon bridge road five building Applicant before: ZHEJIANG JIELI CONSTRUCTION Group Ltd. Applicant before: Zhejiang University of Technology |
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Inventor after: Yang Junjie Inventor after: Wen Weidong Inventor after: Shan Yuchuan Inventor after: Zheng Lihai Inventor after: Zhang Xuefeng Inventor after: Dai Xiaofang Inventor before: Yang Junjie Inventor before: Zhang Xuefeng Inventor before: Dai Xiaofang Inventor before: Wen Weidong Inventor before: Zheng Lihai |
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Free format text: CORRECT: INVENTOR; FROM: YANG JUNJIE ZHANG XUEFENG DAI XIAOFANG WEN WEIDONG ZHENG LIHAI TO: YANG JUNJIE WEN WEIDONG DAN YUCHUAN ZHENG LIHAI ZHANG XUEFENG DAI XIAOFANG |
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