CN103938790B - A kind of beam-ends goes the manufacturing process of restraining plate - Google Patents
A kind of beam-ends goes the manufacturing process of restraining plate Download PDFInfo
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- CN103938790B CN103938790B CN201410108282.7A CN201410108282A CN103938790B CN 103938790 B CN103938790 B CN 103938790B CN 201410108282 A CN201410108282 A CN 201410108282A CN 103938790 B CN103938790 B CN 103938790B
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- 230000000452 restraining effect Effects 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000010426 asphalt Substances 0.000 claims abstract description 40
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 32
- 239000004576 sand Substances 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims abstract description 5
- 108010068370 Glutens Proteins 0.000 claims abstract description 4
- 239000003365 glass fiber Substances 0.000 claims abstract description 4
- 235000021312 gluten Nutrition 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims abstract description 4
- 210000003205 muscle Anatomy 0.000 claims abstract description 4
- 230000002085 persistent effect Effects 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims description 6
- 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
- 239000013521 mastic Substances 0.000 claims description 3
- 239000002245 particle Substances 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000003643 water by type Substances 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
- 238000005192 partition Methods 0.000 description 1
- 230000001737 promoting effect Effects 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
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A kind of beam-ends goes the manufacturing process of restraining plate, comprise the steps: 1) according to going the dimensional requirement of restraining plate to make template: go restraining plate to be cuboid, go the height h of restraining plate identical with gluten clear spacing with muscle at the bottom of Engineering Floor used, length s is according to the clear span value of beam, be taken as 1/10 ~ 1/12 of clear span, thickness is 45 ~ 60mm; 2) water pea gravel concreten layer, in the middle part of pea gravel concreten layer, add glass fiber; 3) brush bitumen layer; 4) sand asphalt pulp layer is built, 4.1) make asphalt mortar, bituminous mortar; 4.2) asphalt mortar, bituminous mortar enters modulus amount by shaping rear severe is 1.6g/cm
3calculate, the molding temperature of asphalt mortar, bituminous mortar is not higher than 120 ° of C, and be not less than 80 ° of C, shakeout, and spread layer of glass above after entering mould, persistent pressure 3.0MPa is no less than 20 minutes, and equitemperature is down to the demoulding after room temperature.The present invention removes constraint between beam and plate, promotes anti seismic efficiency.
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 component of strong node ", according to this design principles, when concrete frame structure meets with geological process, first frame construction produces and destroys on beam, and ensure post and Nodes safety, thus ensure that overall structure is unlikely collapses.The disaster of China's Wenchuan earthquake shows, the whole superstructure that waters extensively adopted at present can prevent floor disengaging from hurting sb.'s feelings effectively, but cause a large amount of frame construction shaft destroy and cause 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.To analyze one of reason be the existing design specifications of China is refine from the summary of earthquake disaster and corresponding experimental study achievement, due to the restriction of test conditions, existing achievement in research major part is for simple Beam-post Frame Structure, and what consider current a large amount of employing is the whole building cover structure watering form comprehensively, this whole building cover structure that waters is by beam and floor monobloc cast, when running into horizontal earthquake active force, floor rigidity is in the horizontal plane very big, cause the shearing resistance of beam, anti-bending bearing capacity increases substantially, cannot controlled destruction be produced at beam-ends and discharge seismic forces, cause a large amount of frame construction shaft on the contrary destroy and cause collapsing of structure, typical " the weak post of brutal " is caused to destroy general layout, thus 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 attempts, by adopting some coefficients in design, suitably weaken the bearing capacity of beam and improve the intensity of shaft.Nonetheless, whole rigidity of watering superstructure, compared with the rigidity of shaft, is also difficult to the designing requirement reaching " strong column and weak beam ", when violent earthquake comes interim, still can destroy at shaft.
Summary of the invention
The deficiency that bending resistance effective area is comparatively large, rigidity is comparatively large, bearing capacity ratio shaft is large, anti seismic efficiency is poor of the beam-ends existed in order to the beam-ends and board connecting structure that overcome existing concrete frame structure, the beam-ends the invention provides and a kind ofly remove constraint between beam and plate, promoting anti seismic efficiency goes the manufacturing process of 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) according to going the dimensional requirement of restraining plate to make template
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;
Template is made according to above-mentioned size;
2) pea gravel concreten layer is watered
Adopt pea gravel concreten, microlith cobble-stone diameter is not more than 8mm, and thickness gets 15 ~ 25mm, and pea gravel concreten strength grade is not less than C20;
Glass fiber is added in the middle part of pea gravel concreten layer;
3) brush bitumen layer
At the hot petroleum bitumen of surface brush one deck of pea gravel concreten layer, asphalt temperature during brush pitch is not less than 80 DEG C, and pitch thickness is not less than 2mm;
4) sand asphalt pulp layer is built
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 enters modulus amount by shaping rear severe is 1.6g/cm
3calculate, the molding temperature of asphalt mortar, bituminous mortar, not higher than 120 DEG C, is not less than 80 DEG C, shakeouts, and spread layer of glass above after entering mould, and persistent pressure 3.0MPa is no less than 20 minutes, and equitemperature is down to the demoulding after room temperature.
Further; the described gross thickness of restraining plate of going 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 sand asphalt pulp 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 other templates can be selected.
In described step (1), described template divides into bed die.Also bed die can not be established.
Technical conceive of the present invention is: be the target that can realize " strong column and weak beam " when non-floor effect by original experimental study achievement and method for designing, so also can build floor structural form for current overall, adopt and remove the constraint of plate to beam at beam-ends, concrete by beam-ends position floor and beam is isolated, beam-ends is made to be relatively independent of floor, relative pure bean column node is formed with post, when geological process is come interim, beam-ends independently bears geological process power, just plastic hinge can be produced at beam-ends by current method for designing, among the distortion a large amount of seismic energies being consumed in plastic hinge, thus reach the design object ensureing 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 devise a kind of sheet material, is separated by beam-ends with the concrete of floor, when geological process, beam-ends can be made to be in relatively independent state, when without geological process, keep the globality of floor, unlikelyly to leak.
On the force analysis being based upon concrete frame structure beam-ends, due to the participation work of floor, the bending resistance net sectional area of beam-ends is increased, and not easily forms plastic hinge.Connection of going restraining plate to be intended to remove plate and beam of the present invention, allow the bending resistance net sectional area of beam-ends reduce, the bearing capacity on beam-ends position is less than the bearing capacity of shaft.For going the making of restraining plate to require being: the while of will being connected with floor slab structure concrete cutting off beam-ends, also will making building cover structure maintenance globality, not affecting the using function of floor, the phenomenon such as can not to leak in the generation of partition place; Consider that superstructure is whole and water construction technology in process, going restraining plate to arrange can not be too complicated.
Beneficial effect of the present invention is mainly manifested in: remove the constraint between beam and plate, promote anti seismic efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of template, and wherein, 1 is the bed die of template, and bed die can have can not had yet, and 2 is the side form of template, and side form has two pieces, left and right, and 3 is end mould, and end mould has two pieces, front and back.
Fig. 2 is the schematic diagram of restraining plate, wherein, 4 be pea gravel concreten layer, 5 for sand asphalt pulp layer, 6 is glass layer, and h is for removing restraining plate height, and s is the length of restraining plate, and n is the thickness of pea gravel concreten layer, and n is the thickness of sand asphalt pulp 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 of restraining plate is gone mainly to determine according to floor size in engineering, template can be wooden form, plastic template or steel form, bed die can be divided into, have during casting platform condition and 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) pea gravel concreten layer is watered
Be attached to outside beam-ends stirrup owing to going the one side of restraining plate; be consistent to make the surface of beam-ends and other position of beam body; in protection beam, reinforcing bar is in alkali ambient conditions; prevent reinforcing bar from getting rusty; restraining plate side is gone to adopt pea gravel concreten; microlith cobble-stone diameter is not more than 8mm, and the general value that thickness gets concrete cover is 20mm, and pea gravel concreten strength grade is not less than C20.Meanwhile, for preventing the fragmentation of pea gravel concreten, in the middle part of pea gravel concreten layer, glass fiber is added.
3) brush bitumen layer
For making restraining plate be combined well with pea gravel concreten layer, at the hot petroleum bitumen of pea gravel concreten surface brush one deck, asphalt temperature during brush pitch not low with 80 DEG C, pitch thickness is not less than 2mm.
4) sand asphalt pulp layer is built
Consider that restraining plate needs 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 river sand is added, the maximum particle diameter <4.0mm of river sand, the ratio of asphalt mastic and river sand is also 1:1, enters mould after stirring.It is 1.6g/cm that sand asphalt slurry enters modulus amount by shaping rear severe
3calculate, the molding temperature of asphalt mortar, bituminous mortar, not higher than 120 DEG C, is not less than 80 DEG C, is advisable with about 100 DEG C, shakeouts, and spread layer of glass above after entering mould, 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; the gross thickness of restraining plate is gone 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 sand asphalt pulp layer is not less than 25mm, is not more than 40mm; according to the slab thickness value of engineering used; slab thickness large person take large values, as slab thickness 90mm ~ 100mm, and the desirable 30mm of thickness of sand asphalt pulp layer.
Claims (4)
1. beam-ends goes a manufacturing process for restraining plate, it is characterized in that: described manufacturing process comprises the steps:
1) according to going the dimensional requirement of restraining plate to make template
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;
Template is made according to above-mentioned size;
2) pea gravel concreten layer is watered
Adopt pea gravel concreten, microlith cobble-stone diameter is not more than 8mm, and thickness gets 15 ~ 25mm, and pea gravel concreten strength grade is not less than C20;
Glass fiber is added in the middle part of pea gravel concreten layer;
3) brush bitumen layer
At the hot petroleum bitumen of surface brush one deck of pea gravel concreten layer, asphalt temperature during brush pitch is not less than 80 ° of C, and pitch thickness is not less than 2mm;
4) sand asphalt pulp layer is built
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 enters modulus amount by shaping rear severe is 1.6g/cm
3calculate, the molding temperature of asphalt mortar, bituminous mortar is not higher than 120 ° of C, and be not less than 80 ° of C, shakeout, and spread layer of glass above after entering mould, persistent pressure 3.0MPa is no less than 20 minutes, and equitemperature is down to the demoulding after room temperature.
2. a kind of beam-ends as claimed in claim 1 goes the manufacturing process of 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 gets 20mm; the thickness of sand asphalt pulp layer is not less than 25mm, is not more than 40mm.
3. a kind of beam-ends as claimed in claim 1 or 2 goes the manufacturing process of restraining plate, it is characterized in that: in described step (1), and described template is wooden form, plastic template or steel form.
4. a kind of beam-ends as claimed in claim 3 goes the manufacturing process of restraining plate, it is characterized in that: in described step (1), described template divides 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 |
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| 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 |
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| Publication Number | Publication Date |
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| CN103938790A CN103938790A (en) | 2014-07-23 |
| CN103938790B true CN103938790B (en) | 2016-01-20 |
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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 |
|---|
| 频率约束板结构拓扑优化;邱海 等;《固体力学学报》;20120430;第33卷(第2期);189-198 * |
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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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