CN203905224U - Ultra-long concrete wall structure - Google Patents
Ultra-long concrete wall structure Download PDFInfo
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- CN203905224U CN203905224U CN201420355903.7U CN201420355903U CN203905224U CN 203905224 U CN203905224 U CN 203905224U CN 201420355903 U CN201420355903 U CN 201420355903U CN 203905224 U CN203905224 U CN 203905224U
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- steel plate
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- cutting steel
- concrete
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 90
- 239000010959 steel Substances 0.000 claims abstract description 90
- 238000005520 cutting process Methods 0.000 claims abstract description 54
- 230000002787 reinforcement Effects 0.000 claims abstract description 52
- 238000005452 bending Methods 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 239000012792 core layer Substances 0.000 abstract 2
- 229910000975 Carbon steel Inorganic materials 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013005 condensation curing Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an ultra-long concrete wall structure. The structure comprises a wall body, wherein a cutting steel plate (3) is arranged on a concrete inner core layer (2) between two reinforcing meshes (1) of the wall body every certain space along the length direction of the wall body; the continuous concrete inner core layer (2) between the two reinforcing meshes (1) is cut into concrete inner core units (4) by the cutting steel plates (3); a plurality of horizontal connecting reinforcements (5) in different heights are welded on each cutting steel plate (3); bending sections (5.1) are arranged at two ends of each connecting reinforcement (5); the two bending sections (5.1) of each connecting reinforcement (5) are respectively welded with horizontal reinforcements (1.1) of the two reinforcing meshes (1); each cutting steel plate (3) is formed by bending a whole plain steel plate and has a concave-convex cross section. The structure can achieve effective control of structural cracks and eliminate harmful cracks.
Description
Technical field
The utility model relates to the construction technology of the structural cracks control of the concrete wall in field of civil engineering, is specifically a kind of ultra-long concrete wall structure.
Background technology
In engineering construction, the application of ultra-long concrete wall structure is very general, and described overlength generally refers to that length exceedes 35m, as the sidewall in underground garage, Large Underground Structure perimeter walls, all kinds of liquid storage tank sidewall and overlength river course etc.Ultra-long concrete wall structure can produce a large amount of structural crackss because of shrinkage strain in condensation cure process and under action of thermal difference, causes seepage and affects it and use function.For many years, be the structural cracks achieve effective control to super-long wall body, engineering circles has carried out a large amount of extremely hard and bitter explorations, but cannot solve all the time this technical barrier.
The prior art methods that ater-casting is set that adopt more, reserve at a certain distance an ater-casting, but first the method can cause claim for eot, because ater-casting must formerly be watered after the concrete of wall section reaches some strength and just be filled, be generally just to fill about 60 days, before filling, subsequent operation cannot be carried out in relevant range; And, needing to arrange temporary protection measure before filling ater-casting, construction sequence is many, and practical operation is loaded down with trivial details; Moreover, most critical be, rely on still effective control structure crack, ater-casting, because just there is contradiction in the control of the existence of ater-casting and structural cracks: if ater-casting arranges very few originally, the continuous concrete section of body of wall is still longer, the tensile stress of accumulation is still larger, the crack that distortion produces is more, cannot reach the effect of controlling crack, if but that ater-casting arranges is more, there are two constuction joints in every ater-casting, and constuction joint place was exactly the high hidden danger position of easy seepage originally, constuction joint increases, and hidden leakage defect is larger; To sum up, rely on ater-casting, not only extend the duration, increase construction sequence, and still poor to the control effect of structural cracks.Prior art also adopts to mixing expansion agent in concrete, increasing and join reinforcing bar as set up the mode without bonding prestress muscle in body of wall, but still very undesirable to the control effect of structural cracks, and in actual use, harmful cracks, appears in still general cracking of body of wall.
Utility model content
The technical problems to be solved in the utility model is, provide a kind of can be to structural cracks achieve effective control, eliminate the ultra-long concrete wall structure of harmful cracks.
A technical solution of the present utility model is, a kind of ultra-long concrete wall structure is provided, it comprises body of wall, in body of wall, anchoring has two-layer steel mesh reinforcement, on concrete inner nuclear layer between the two-layer steel mesh reinforcement of this body of wall, be often provided with across a certain distance a cutting steel plate along this body of wall length direction, concrete inner nuclear layer continuous between two-layer steel mesh reinforcement is cut into concrete kernel unit by cutting steel plate; The horizontal direction connecting reinforcement that is welded with many differing heights on every cutting steel plate, the two ends of every connecting reinforcement are provided with bending segment, and two bending segments of every connecting reinforcement weld with the horizontal steel bar of two-layer steel mesh reinforcement respectively; Cutting steel plate is that to bend by a monoblock plain plate cross section forming be concavo-convex cutting steel plate, it comprises starting stave, the 3rd riser and the 5th riser extending along thickness of wall body direction and the second riser and the 4th riser extending along body of wall length direction, starting stave is inner to be connected with the second riser rear end, the second riser front end is connected with the 3rd riser one end, the other end of the 3rd riser is connected with the 4th riser front end, and the 4th riser rear end is connected with the 5th riser is inner.
Implement the method for ultra-long concrete wall structure of the present utility model with control structure crack, its step comprises: first plain plate is bent into concavo-convex cutting steel plate, install again the side template of body of wall one side and install the two-layer steel mesh reinforcement of body of wall both sides, and the length direction along body of wall is often laid a cutting steel plate across a certain distance, on every cutting steel plate, weld the connecting reinforcement of many differing heights and the horizontal steel bar of the bending segment of the both sides of connecting reinforcement and two-layer steel mesh reinforcement is welded, then install again the side template of body of wall opposite side, last disturbing concrete.
The utility model ultra-long concrete wall structure compared with prior art, has the following advantages and effect:
Owing to every an intersegmental cutting steel plate apart from setting, continuous concrete inner nuclear layer being cut into concrete kernel unit, say in essence, the moderate finite deformation amount that exactly overlength continuous concrete inner nuclear layer is produced and accumulated is shared in multiple concrete kernel unit, like this, deformation quantity in single concrete kernel unit is very small, the tensile stress of single concrete kernel unit accumulation effectively weakens, therefore quantity and the density in crack obviously reduce, and crack width is also reduced to below 0.2mm from 0.3～0.5mm of prior art, and, two concrete covers in steel mesh reinforcement outside are without constuction joint, can as prior art, there is not hidden leakage defect, moreover, the tensile stress of single concrete kernel unit accumulation is effectively discharged at cutting steel plate place, therefore the crack of single concrete kernel unit is also effectively controlled, concentrates near cutting steel plate, and that cutting steel plate is bent into is concavo-convex, and there is again wall steel bar net and concrete cover in cutting steel plate both sides, unlike prior art, there is complete constuction joint, therefore effectively sealing is avoided seepage, do not have the hidden danger of leaking at prior art constuction joint place.To sum up, technical solutions of the utility model have perfectly solved the ubiquitous crack of ultra-long concrete wall structure, seepage technical barrier, realize the effective control to structural cracks, eliminated harmful cracks, and, ater-casting needn't be set, but continuous casting pound concrete, therefore can not extend the duration, operating procedure is also easier, moreover this structure and construction method are applicable to the Crack Control of random length super-long wall body; Also, because this cutting steel plate is to be formed by integral plate bending, between each riser, without vertical weld seam, strengthen stagnant water effect, further prevented seepage.
As improvement; the width of cutting steel plate equals the thickness that thickness that thickness of wall body deducts two-layer steel mesh reinforcement deducts two concrete covers in two-layer steel mesh reinforcement outside again and then deducts 30mm; such design; can ensure that cutting steel plate is by continuous concrete inner nuclear layer perfect cutting; stay certain surplus to again the installation of cutting steel plate, make cutting steel plate that convenient fixing is installed.
As further improvement, the height of cutting steel plate equals to play the distance of the dark soffit of a floor stopping from the horizontal construction joint end face of this layer of body of wall and deducts 50mm, can ensure that equally cutting steel plate is by continuous concrete inner nuclear layer perfect cutting, stay certain surplus to again the installation of cutting steel plate, make cutting steel plate that convenient fixing is installed.
As further improvement, between every connecting reinforcement and cutting steel plate, adopt 4 spot welding to fix, each spotweld length is 20mm; The weld seam of the bending segment of every connecting reinforcement and the horizontal steel bar of steel mesh reinforcement is 30mm, and such structure is easy for installation, and connecting reinforcement and cutting steel plate and the equal fixation of horizontal steel bar after welding.
Brief description of the drawings
Fig. 1 be the utility model ultra-long concrete wall structure overlook sectional structure schematic diagram.
Fig. 2 is the structure for amplifying schematic diagram of the cutting steel plate of the utility model ultra-long concrete wall structure.
Shown in figure 1, steel mesh reinforcement, 1.1, horizontal steel bar, 2, concrete inner nuclear layer; 3, cutting steel plate, 3.1, starting stave, 3.2, the second riser; 3.3, the 3rd riser; 3.4, the 4th riser, 3.5, the 5th riser, 4, concrete kernel unit; 5, connecting reinforcement; 5.1, bending segment, 6, concrete cover, the width of d, cutting steel plate.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model ultra-long concrete wall structure, it comprises body of wall, in body of wall, anchoring has two-layer steel mesh reinforcement 1.On concrete inner nuclear layer 2 between the two-layer steel mesh reinforcement 1 of this body of wall, be often provided with across a certain distance a cutting steel plate 3 along this body of wall length direction, concrete inner nuclear layer 2 continuous between two-layer steel mesh reinforcement 1 is cut into concrete kernel unit 4 by cutting steel plate 3.The horizontal direction connecting reinforcement 5 that is welded with many differing heights on every cutting steel plate 3, the two ends of every connecting reinforcement 5 are provided with bending segment 5.1, and two bending segments 5.1 of every connecting reinforcement 5 weld with the horizontal steel bar 1.1 of two-layer steel mesh reinforcement 1 respectively.Between every connecting reinforcement 5 and cutting steel plate 3, adopt 4 spot welding to fix, each spotweld length is 20mm; The bending segment 5.1 of every connecting reinforcement 5 is 30mm with the weld seam of the horizontal steel bar 1.1 of steel mesh reinforcement 1.
The width d of cutting steel plate 3 equals the thickness that thickness that thickness of wall body deducts two-layer steel mesh reinforcement 1 deducts two concrete covers 6 in two-layer steel mesh reinforcement 1 outside again and then deducts 30mm.The width d of cutting steel plate 3 refers to, cutting steel plate 3 is in the length along thickness of wall body direction.The body of wall of every layer be from more than this floor plate top surface 30 centimeters namely the horizontal construction joint of this layer of body of wall start to build, upwards continue to build above 30 centimeters of the end face that is always poured into last layer floor, this layer of body of wall is with the floor of last layer and dark beam formed by integrally casting.The height of cutting steel plate 3 equals to play the distance of the dark soffit of a floor stopping from the horizontal construction joint end face of this layer of body of wall and deducts 50mm.
Cutting steel plate 3 is concavo-convex cutting steel plate 3 for bending by a monoblock plain plate cross section forming, it comprises starting stave 3.1, the 3rd riser 3.3 and the 5th riser 3.5 extending along thickness of wall body direction and the second riser 3.2 and the 4th riser 3.4 extending along body of wall length direction, starting stave 3.1 is inner to be connected with the second riser 3.2 rear ends, the second riser 3.2 front ends are connected with the 3rd riser 3.3 one end, the other end of the 3rd riser 3.3 is connected with the 4th riser 3.4 front ends, and the 4th riser 3.4 rear ends are connected with the 5th riser 3.5 the inners.
Implement the method for the utility model construction ultra-long concrete wall structure with control structure crack, its step comprises: first plain plate is bent into concavo-convex cutting steel plate 3, install again the side template of body of wall one side and install the two-layer steel mesh reinforcement 1 of body of wall both sides, and the length direction along body of wall is often laid a cutting steel plate 3 across a certain distance, on every cutting steel plate 3, weld the connecting reinforcement 5 of many differing heights and the bending segment of the both sides of connecting reinforcement 5 5.1 and the horizontal steel bar 1.1 of two-layer steel mesh reinforcement 1 are welded, then install again the side template of body of wall opposite side, last disturbing concrete.
Claims (4)
1. a ultra-long concrete wall structure, it comprises body of wall, in body of wall, anchoring has two-layer steel mesh reinforcement (1), it is characterized in that: the concrete inner nuclear layer (2) between the two-layer steel mesh reinforcement (1) of this body of wall is above often provided with a cutting steel plate (3) across a certain distance along this body of wall length direction, and concrete inner nuclear layer (2) continuous between two-layer steel mesh reinforcement (1) is cut into concrete kernel unit (4) by cutting steel plate (3), on every cutting steel plate (3), be welded with the horizontal direction connecting reinforcement (5) of many differing heights, the two ends of every connecting reinforcement (5) are provided with bending segment (5.1), and two bending segments (5.1) of every connecting reinforcement (5) weld with the horizontal steel bar (1.1) of two-layer steel mesh reinforcement (1) respectively, cutting steel plate (3) is concavo-convex cutting steel plate (3) for bending by a monoblock plain plate cross section forming, it comprises the starting stave (3.1) extending along thickness of wall body direction, the 3rd riser (3.3) and the 5th riser (3.5) and the second riser (3.2) and the 4th riser (3.4) that extend along body of wall length direction, starting stave (3.1) is inner to be connected with the second riser (3.2) rear end, the second riser (3.2) front end is connected with the 3rd riser (3.3) one end, the other end of the 3rd riser (3.3) is connected with the 4th riser (3.4) front end, the 4th riser (3.4) rear end is connected with the 5th riser (3.5) is inner.
2. ultra-long concrete wall structure according to claim 1, is characterized in that: the width (d) of cutting steel plate (3) equals the thickness that thickness that thickness of wall body deducts two-layer steel mesh reinforcement (1) deducts two concrete covers (6) in two-layer steel mesh reinforcement (1) outside again and then deducts 30mm.
3. ultra-long concrete wall structure according to claim 1, is characterized in that: the height of cutting steel plate (3) equals to play the distance of the dark soffit of a floor stopping from the horizontal construction joint end face of this layer of body of wall and deducts 50mm.
4. ultra-long concrete wall structure according to claim 1, is characterized in that: between every connecting reinforcement (5) and cutting steel plate (3), adopt 4 spot welding to fix, each spotweld length is 20mm; The bending segment (5.1) of every connecting reinforcement (5) is 30mm with the weld seam of the horizontal steel bar (1.1) of steel mesh reinforcement (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355903.7U CN203905224U (en) | 2014-06-30 | 2014-06-30 | Ultra-long concrete wall structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420355903.7U CN203905224U (en) | 2014-06-30 | 2014-06-30 | Ultra-long concrete wall structure |
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| CN203905224U true CN203905224U (en) | 2014-10-29 |
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| CN201420355903.7U Expired - Lifetime CN203905224U (en) | 2014-06-30 | 2014-06-30 | Ultra-long concrete wall structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074285A (en) * | 2014-06-30 | 2014-10-01 | 浙江省二建建设集团有限公司 | ultra-long concrete wall body structure and method for controlling structural cracks by constructing wall body |
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2014
- 2014-06-30 CN CN201420355903.7U patent/CN203905224U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104074285A (en) * | 2014-06-30 | 2014-10-01 | 浙江省二建建设集团有限公司 | ultra-long concrete wall body structure and method for controlling structural cracks by constructing wall body |
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