CN201660973U - Concrete post-pouring belt pre-sealing air exhaust structure - Google Patents

Concrete post-pouring belt pre-sealing air exhaust structure Download PDF

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Publication number
CN201660973U
CN201660973U CN2010201264292U CN201020126429U CN201660973U CN 201660973 U CN201660973 U CN 201660973U CN 2010201264292 U CN2010201264292 U CN 2010201264292U CN 201020126429 U CN201020126429 U CN 201020126429U CN 201660973 U CN201660973 U CN 201660973U
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CN
China
Prior art keywords
ater
casting
advance
exhaust structure
concrete
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Expired - Fee Related
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CN2010201264292U
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Chinese (zh)
Inventor
王爱兰
王作利
杨志
李鑫
丁威
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BEIJING LIUJIAN CONSTRUCTION Corp
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BEIJING LIUJIAN CONSTRUCTION Corp
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Abstract

The utility model relates to a concrete post-pouring belt pre-sealing air exhaust structure, which comprises a post-pouring belt space. Brick walls are built on two sides of the post-pouring belt space; a cover plate is covered on the top surfaces of the brick walls; preformed holes are arranged on the cover plate; and an air exhaust pipe, a pouring pipe and a detecting pipe penetrate through the preformed holes of the cover plate and are inserted into the post-pouring belt space. By embedding the pouring pipe and the air exhaust pipe and building the brick walls to form a post-pouring belt pre-sealing air exhaust system, the concrete post-pouring belt pre-sealing air exhaust structure can effectively solve the problems that a structure settling post-pouring belt of an underground portion can only be constructed after pouring of the integral structure of a building is finished, so that setting of an outer scaffold on a first layer is affected to further affect construction of an upper-layer structure. The concrete post-pouring belt pre-sealing air exhaust structure can be widely applied to a structure needing seal in advance and then being timely poured as a post-pouring belt is designed between a high concrete bay and a low concrete bay and a straining beam or a floor plate is arranged underground.

Description

Late poured band is sealed exhaust structure in advance
Technical field
The utility model relates to a kind of late poured band and seals exhaust structure in advance, and design had the ater-casting to have straining beam or floor to need sealing in advance to build pre-sealing exhaust structure again underground in good time between particularly a kind of concrete was just striden.
Background technology
It is the domestic and international general effective ways that reduce the concrete shrinkage adverse effect that the structure of reinforced concrete stage is taked crack control measures, and China's method commonly used is that the ater-casting is set.According to engineering experience, the spacing of ater-casting is not more than 30 meters usually, and the blanking time of pouring ater-casting is usually more than two months.The ater-casting is with all interim disconnection of structural element concrete.The ater-casting is as the interim constuction joint in the construction, and temperature is shunk in order to overcome, concrete shrinks, the structure differential settlement may cause unfavorable factor setting.It compares the function of use that its original advantage-structural integrity, facade are complete, can bring into play building better with nonvolatil shrinkage joint, the settlement joint of common setting.
Because the structure sediment ater-casting that is under ground portion is will build in the whole building structure can construct after finishing, to influence the follow-up work of engineering like this, construction such as the basic backfill of influence influences setting up of first floor external scaffolding, to such an extent as to influence the construction of superstructure.For the timely situation of backfill of underground foundation part, in order to set up the structure external scaffolding at first layer ground, common way is to take to make outrigger at first floor structural floor with shaped steel to set up builder's jack thereon, like this, can only segmentation set up for the high-level structure shelf, in multilayer the shaped steel outrigger is set, promptly uneconomically has many unsafe factors again.
Consider generally,, adopt the job practices that precast plate is installed at exterior wall for not influencing the construction of fertile groove backfill in the ater-casting at exterior wall position.But at the pouring after settlement beam slab of underground structure Position Design, the method for the not support of body of wall, so this installation precast plate is not suitable for the construction of this ater-casting, so consider pre-buried method of building pipe.The problem that the structure of ater-casting can be above-mentioned is sealed in the ater-casting in advance.
Summary of the invention
The purpose of this utility model provides a kind of late poured band and seals exhaust structure in advance, and the structure sediment ater-casting that solve under ground portion is the technical problem that will build work can the construction infection engineering follow-up after finishing in the whole building structure; And the problem of back quality control is built in the solution ater-casting.
For achieving the above object, the utility model adopts following technical scheme:
A kind of late poured band is sealed exhaust structure in advance, comprises the space, ater-casting, has built by laying bricks or stones between brick wall, the two brick wall end face in both sides, space, ater-casting and has been stamped cover plate, and preformed hole is arranged on the cover plate, stack and build pipe and pass the cover plate preformed hole and insert the space, ater-casting.
Described ater-casting is filled with concrete in the space, and institute's concrete of filling out is than building the higher leveled slightly expanded concrete of corresponding construction position intensity.
Have original structure master muscle to pass through in the space, described ater-casting, this main muscle does not disconnect.
Described cover plate is plank or steel plate.
Also insert detector tube in the described preformed hole, receiving transducer or transmitting probe are housed in the detector tube, receiving transducer is connected with the Ultrasound Instrument on ground with transmitting probe.
Described stack and detector tube are arranged symmetrically in builds the pipe both sides.
Described stack, detector tube and to build the bottom surface of pipe concordant with ground straining beam back, end face exceeds grade.
The described pipe of building is φ 150 double-wall corrugated pipes, and described detector tube and stack are φ 50 straight tubes. ? 
[0012]Compared with prior art the utlity model has following characteristics and beneficial effect: 1. a large amount of ater-castings is arranged for structure design, restricting the engineering of whole duration of a project, the structure that the utility model is mentioned does not influence underground backfill construction and prevents that the surface water from flowing into underground, guarantee the above structure construction in ground normally setting up with scaffold, take pre-buried the building in ater-casting watered the position after pipe seals in advance, convenient construction, duration in advance.
2. the structure mentioned of the utility model has solved the technical problem that can not construct continuously in high-rise agent structure and low striding (as the entrance hall inlet) junction.
3. the structure mentioned of the utility model does not change built structure sedimentation, contraction and normally stressed owing to seal the underground structure ater-casting by brick wall and cover plate in advance.
4. the structure mentioned of the utility model need not to take the cantilevered structure frame, and superstructure i.e. normal smooth construction, reduces the unsafe factor generation.
5. structure reduction of erection time of mentioning of the utility model, reduce construction cost, and, can satisfy the structural bearing capacity requirement owing to pass the main muscle in space, ater-casting and be not cut off.
6. the structure mentioned of the utility model can be provided with detector tube, has the means that concrete work is built that detect, and guarantees workmanship.
The structure sediment ater-casting that the utility model has overcome lower part traditionally will be built the shortcoming of work can the construction infection engineering follow-up after finishing in the whole building structure, the existence that has solved the ater-casting does not influence follow-up construction, does not change built structure sedimentation, contraction and normal stressed and can build the technical problem that nondestructive testing is carried out to pouring quality in the back in the ater-casting.
The utility model can be widely used in concrete just stride between the design have the ater-casting to have straining beam or floor needs to seal the structure of in good time building again in advance underground.
Description of drawings
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is straining beam ater-casting, a utility model ground layout schematic diagram.
Fig. 2 is the structural representation of I among Fig. 1-I section;
Fig. 3 is the structural representation of II among Fig. 1-II section;
Fig. 4 is the structural representation of supercritical ultrasonics technology test philosophy.
Reference numeral: 1-brick wall, space, 2-ater-casting, 3-build pipe, 4-detector tube, 5-ground straining beam, 6-stack, 7-cover plate, 8-grade, 9-ground straining beam, 10-Ultrasound Instrument, 11-transmitting probe, 12-receiving transducer, 13-concrete.
The specific embodiment
Embodiment is referring to Fig. 1~shown in Figure 4, a kind of late poured band is sealed exhaust structure in advance, comprise space, ater-casting 2, built by laying bricks or stones between brick wall 1, the two brick wall end face in the both sides in space, ater-casting 2 and to be stamped cover plate 7, on the cover plate 7 preformed hole is arranged, stack 6 and build pipe 3 and pass the cover plate preformed hole and insert space, ater-casting 2.Be filled with concrete 13 in the space, described ater-casting 2, institute's concrete of filling out 13 is than building the higher leveled slightly expanded concrete of corresponding construction position intensity.Have original structure master muscle to pass through in the space, described ater-casting 2, this main muscle does not disconnect.Described cover plate 7 is plank or steel plate.Described stack 6 and detector tube 4 are arranged symmetrically in the both sides of building pipe 3.Described stack 6, detector tube 4 and to build pipe 3 bottom surface concordant with the back of ground straining beam 9, end face exceeds grade 8.The described pipe 3 of building is φ 150 double-wall corrugated pipes, and described detector tube 4 and stack 6 are φ 50 straight tubes.Also insert detector tube 4 in the described preformed hole, receiving transducer 12 or transmitting probe 11 are housed in the detector tube 4, receiving transducer 12 is connected with the Ultrasound Instrument 10 on ground with transmitting probe 11.
Implementation procedure of the present utility model is: (one) base cleaning: space, ater-casting 2 basic unit's foreign material that will seal are cleaned out, and fouling product must not be arranged.Reinforcing bar rust cleaning, adjustment in the space, ater-casting.
(2) build the brick wall template by laying bricks or stones: the both sides, ater-casting are built brick wall 1 by laying bricks or stones as template, according to structure height, determine brick wall thickness.The independent support system that space, floor ater-casting 1 still uses the original structure formwork to be provided with, but to check reinforcing, guarantee to bear upper load.
(3) insert pre-pipe laying: insert three pre-pipe layings, a middle diameter is that φ 150 builds pipe 3(certain intensity is arranged) be used to build concrete, two diameters are that φ 50 is used for stack 6 and detector tube 4 in addition, guarantee structure ater-casting concrete pouring quality.
(4) cover cover plate 7: can carry out next step operation construction after the position, ater-casting covers.The material that covers is wanted to satisfy the load that bankets and construct in the upper strata.
(5) backfill: note even backfill, must not concentrate, avoid destroying covering layer.
(6) build the ater-casting concrete: the attention layering is evenly built, and avoids the provided pipe displacement, and will guarantee to water closely knit.
Conscientiously measure when building, when concreting, keep somewhere the standard curing test specimen in accordance with regulations and, in order to the concrete intensity in check ater-casting with condition maintenance test specimen.
(7) check and accept pouring quality
For guaranteeing concrete engineering quality, the actual amount of building of control concrete is theoretical 1.1 times of calculating the amount of building in the construction, and controls pre-buried building till pipe overflows.(the concrete fullness coefficient is not less than 1.1).Quality specifications: concrete strength reaches 100% qualified.
The entity method of inspection: can adopt ultrasound examination concrete pouring quality, the concrete inner structure quality is carried out Ultrasonic NDT, promptly use pre-buried 50mm steel pipe, be used for detecting the concrete pouring quality as detector tube 4.
The test philosophy of supercritical ultrasonics technology: send the series of periodic electric pulse by the pulse signal generator in the Ultrasound Instrument, and be added on the pole plate of transmitting transducer and produce ultrasonic pulse, ultrasonic pulse is by tested concrete body, and be received transducer and receive, acoustic signals is transformed into the signal of telecommunication again, the loss A of various physical quantitys that Ultrasound Instrument demonstrates ultrasonic pulse when passing measured medium such as acoustic transit time t, energy, the variation of frequency f and wave distortion etc.Because when sound wave passed different media, these physical quantitys were all different, therefore can judge the variation of concreting quality and character, size and the position of internal flaw according to the relation between above-mentioned physical quantity and the medium character.
More than be an exemplary embodiments of the present utility model, enforcement of the present utility model more than that.

Claims (8)

1. a late poured band is sealed exhaust structure in advance, comprise space, ater-casting (2), it is characterized in that: built by laying bricks or stones in the both sides of space, ater-casting (2) and be stamped cover plate (7) between brick wall (1), the two brick wall end face, cover plate has preformed hole on (7), stack (6) and build pipe (3) and pass the cover plate preformed hole and insert space, ater-casting (2).
2. late poured band according to claim 1 is sealed exhaust structure in advance, it is characterized in that: be filled with concrete (13) in the space, described ater-casting (2), institute's concrete of filling out is than building the higher leveled slightly expanded concrete of corresponding construction position intensity.
3. late poured band according to claim 1 is sealed exhaust structure in advance, it is characterized in that: have original structure master muscle to pass through in the space, described ater-casting (2), this main muscle does not disconnect.
4. late poured band according to claim 1 is sealed exhaust structure in advance, it is characterized in that: described cover plate (7) is plank or steel plate.
5. late poured band according to claim 1 is sealed exhaust structure in advance, it is characterized in that: also insert detector tube (4) in the described preformed hole, receiving transducer (12) or transmitting probe (11) are housed in the detector tube, and receiving transducer (12) is connected with the Ultrasound Instrument (10) on ground with transmitting probe (11).
6. late poured band according to claim 5 is sealed exhaust structure in advance, it is characterized in that: described stack (6) and detector tube (4) are arranged symmetrically in the both sides of building pipe (3).
7. late poured band according to claim 5 is sealed exhaust structure in advance, it is characterized in that: described stack (6), detector tube (4) and the bottom surface of building pipe (3) are concordant with the back of ground straining beam (9), and end face exceeds grade (8).
8. late poured band according to claim 5 is sealed exhaust structure in advance, it is characterized in that: the described pipe (3) of building is φ 150 double-wall corrugated pipes, and described detector tube (4) and stack (6) are φ 50 straight tubes. ? 
CN2010201264292U 2010-03-09 2010-03-09 Concrete post-pouring belt pre-sealing air exhaust structure Expired - Fee Related CN201660973U (en)

Priority Applications (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102535849A (en) * 2012-02-15 2012-07-04 中建三局第二建设工程有限责任公司 Constructional column top concreting method
CN109024933A (en) * 2018-09-11 2018-12-18 四川大诚建筑工程有限公司 Post empiricism structure
CN115126003A (en) * 2022-06-29 2022-09-30 华北水利水电大学 Post-cast strip pre-sealing structure and pre-sealing construction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102535849A (en) * 2012-02-15 2012-07-04 中建三局第二建设工程有限责任公司 Constructional column top concreting method
CN109024933A (en) * 2018-09-11 2018-12-18 四川大诚建筑工程有限公司 Post empiricism structure
CN115126003A (en) * 2022-06-29 2022-09-30 华北水利水电大学 Post-cast strip pre-sealing structure and pre-sealing construction method
CN115126003B (en) * 2022-06-29 2024-06-18 华北水利水电大学 Post-pouring belt pre-sealing structure and pre-sealing construction method

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Granted publication date: 20101201

Termination date: 20150309

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