CN103061503A - Ring beam template - Google Patents
Ring beam template Download PDFInfo
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- CN103061503A CN103061503A CN2013100139503A CN201310013950A CN103061503A CN 103061503 A CN103061503 A CN 103061503A CN 2013100139503 A CN2013100139503 A CN 2013100139503A CN 201310013950 A CN201310013950 A CN 201310013950A CN 103061503 A CN103061503 A CN 103061503A
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- formwork assembly
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- reinforcing bar
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- 238000009415 formwork Methods 0.000 claims abstract description 77
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 39
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Abstract
The invention provides a ring beam template, which comprises: flexible template, many stupefied woods, interior outer ring bind reinforcing bar, interior vaulting pole, support member, pull rod, wherein: the flexible template comprises a plurality of layers of bamboo plywood, a plurality of equally spaced wood ridges are vertically and fixedly arranged on the bamboo plywood, and the wood ridges are all provided with preset heights; the inner and outer ring binding steel bars connect the flexible templates into a whole; the inner stay bars are fixed with the flexible formworks by steel bars, and the counter-pull screw rods are fixed with the inner and outer ring binding steel bars and the vertical rod binding steel bars and used for supporting and fixing the space between the flexible formworks; the support rod piece comprises an upright rod and an inclined stay rod, and the upright rod and the inclined stay rod are fixed into a right triangle and are fixed with the flexible template to jointly support the flexible template. The ring beam template adopted by the invention has the advantages of good effect of surface integral smoothness, convenient installation, short construction period, low cost of the bamboo plywood flexible template adopted by the ring beam template, reasonable and standard construction process, wide application range and good popularization prospect.
Description
Technical field
The invention relates to circular and arc concrete structure pouring technology, particularly, is the ring beam template that is applicable to the construction of large-scale storage tank base concrete ring beam about a kind of.
Background technology
Large-scale storage tank basis ring beam is generally steel concrete ring-type thin wall construction.The ring beam template adopts the rigid template system at present usually, namely adopts standard set shaped steel formwork or wooden form assembling combination, and supports fixing with the steel pipe type hack lever.Because typing punching block (wooden model) size is little, piece is many, is a kind of template system that comes the fitting circle cambered surface with the polygon cylinder, thereby the round and smooth degree effect of ring beam formwork integral is relatively poor, the local axis deviation is difficult for adjusting, and construction is wasted time and energy.And adopt special large-scale arc surface steel form, the factor amount is many, from great, moved by hand is inconvenient, not only need big machinery assistant conveyance, hoisted in position and transition, and the template recycling rate of waterused is low (usually is limited to construction period, one cover template is generally only had enough to meet the need 2 tool tank bases on an object of construction production), high, the disposable input cost of cost is large, unreasonable economically.
Summary of the invention
The main purpose of the embodiment of the invention is to provide a kind of ring beam template, the problem that construction is inconvenient, cost is high that causes to solve prior art.
To achieve these goals, the embodiment of the invention provides a kind of ring beam template, this ring beam template comprises: Flexible formwork assembly, many stupefied wood, inside and outside rings bundle reinforcing bar, internal overarm support, support rod unit, pull bar, wherein: described Flexible formwork assembly comprises the multi-layer bamboo offset plate, vertically be fixedly installed many equally spaced stupefied wood on the bamboo offset plate, described many stupefied wood all have predetermined altitude; Described inside and outside ring binding reinforcing bar connects into integral body with described Flexible formwork assembly; Described internal overarm support and described Flexible formwork assembly are fixed with reinforcing bar, fix drawing lead screw and described inside and outside ring binding reinforcing bar and vertical rod binding reinforcing bar, are used for supporting fixing described Flexible formwork assembly spacing; Described support rod unit comprises vertical rod and hound, and described vertical rod and hound are fixed into right-angled triangle and the fixing common described Flexible formwork assembly that supports of described Flexible formwork assembly.
Further, described inside and outside ring binding reinforcing bar is indented bars, by butt welding or overlap welding described Flexible formwork assembly is bundled into integral body.
Further, described hound comprises: on arrange hound and lower row's hound, the upper end of described upper row's hound and lower row's hound is all fixed with described vertical rod, the lower end of upper row's hound and lower row's hound is all fixed with the ground anchor stock.
Further, steel pipe processing is adopted in described vertical rod, and per two become one group, every group of corresponding 4 pull bars of vertical rod; Described vertical rod and described pull bar vertically are positioned at same vertical line, and described pull bar is that described butterfly steel pipe strap is fixed described pull bar and described vertical rod to drawing lead screw, two ends to be provided with the butterfly steel pipe strap.
Wherein, be provided with the pvc pipe cover on the described pull bar.
Further, described internal overarm support is reinforcing bar.
Further, described ring beam template also comprises: cushion block is fixedly installed between described Flexible formwork assembly and the ring beam reinforcing bar.
The beneficial effect of the embodiment of the invention is, the ring beam template that the present invention adopts, the round and smooth degree of surface integral effective, easy for installation, the duration is short, the bamboo offset plate Flexible formwork assembly cost that the ring beam template adopts is low, the construction technology reasonable standard, applied range, promotion prospect is good.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the ring beam template single face supporting and protection structure generalized section according to the embodiment of the invention;
Fig. 2 is according to the two-sided reinforcing generalized section of the ring beam template of the embodiment of the invention;
Fig. 3 is the schematic diagram that total powerstation positions unwrapping wire.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 is the ring beam template single face supporting and protection structure generalized section according to the embodiment of the invention, and Fig. 2 is according to the two-sided reinforcing generalized section of the ring beam template of the embodiment of the invention (unit among the figure: mm).As shown in Figures 1 and 2, a kind of ring beam template that the embodiment of the invention provides comprises: among Flexible formwork assembly 1(Fig. 2, Flexible formwork assembly is arranged on stupefied wooden 2 inboards, and is not shown), stupefied wooden 2, inside and outside ring binding reinforcing bar 3, internal overarm support 4, support rod unit and pull bar.Wherein: Flexible formwork assembly 1 comprises multilaminar high strength degree bamboo offset plate, on the high-strength bamboo offset plate, vertically be fixedly installed many equally spaced stupefied wooden 2, many stupefied wooden 2 all have predetermined altitude; Inside and outside ring binding reinforcing bar 3 connects into integral body with Flexible formwork assembly 1; Internal overarm support 4 is fixed with Flexible formwork assembly 1 usefulness reinforcing bar, fixes drawing lead screw 5 and inside and outside ring binding reinforcing bar 3 and vertical rod binding reinforcing bar, is used for supporting fixing flexible template spacing; Support rod unit comprises vertical rod 11 and hound, and vertical rod 11 and hound are fixed into right-angled triangle and the fixing common supporting flexible template of Flexible formwork assembly.
Above-mentioned ring beam template has adopted the supporting of bamboo offset plate Flexible formwork assembly, and inner and outer template adopts flexible bamboo offset plate, and the formwork integral flexibility can be adjusted automatically, and interior outer support adopts the stupefied wooden inner support of the equidistant vertical setting of types of hoop to tie stirrup outward.Effectively solve concrete appearance arc surface local axis deviation, the round and smooth degree of surface integral effective need not carry out surface powdering.Simultaneously, because the bamboo glue Flexible formwork assembly cost that adopts is lower, reduced the cost of construction, the construction technology reasonable standard, applied range, promotion prospect is good.
Take 100,000 storage tank ring beams as example, in specific implementation process, the Flexible formwork assembly of 100,000 side's large-scale storage tank discharge ring beam forms adopts the assembly unit of 10mm high-strength bamboo offset plate, and every bamboo offset plate plate standard size is 1200mm * 2440mm * 10mm.Upper width of cloth bamboo offset plate directly utilizes during construction, and lower width of cloth bamboo offset plate is cut out and is 900mm * 2440mm, and it is an assembling parts that two one combinations are assembled into up and down 2100mm * 2440mm * 10mm.
Be fixed on the bamboo offset plate face (center distance 244mm) with the major part iron nail by equidistant vertical array by 11 stupefied wood.Wherein two of both sides are connected with adjacent block bamboo offset plate Flexible formwork assembly during assembly unit ring beam template at the scene.Stupefied batten plays a part to strengthen Flexible formwork assembly rigidity, connects Flexible formwork assembly.Paste the sponge bar on the Flexible formwork assembly transverse joint.Plate machine-shaping is carried out space of a whole page cleaning, brushing release agent after being transported to the scene, piles up for subsequent use.1 collar beam forms needs 412 of bamboo offset plates, 2060 of stupefied battens altogether.
What need to specify is, the thickness of stupefied batten, spacing must be consistent, to guarantee ringwall circularity.
Wherein, above-mentioned Flexible formwork assembly can be selected the thick high-strength bamboo offset plate processing of 10-12mm, and same group of Flexible formwork assembly must be selected the bamboo offset plate of identical material specification, same thickness.
The stupefied wood of vertical reinforcing is used for the vertical reinforcing of Flexible formwork assembly, selects the pine bar of long 2.1m (by exceeding ring beam end face 0.1m blanking), sectional dimension 7cm * 5cm.The same group of used stupefied wooden thickness of Flexible formwork assembly must be consistent.
Particularly, above-mentioned inside and outside ring binding reinforcing bar 3 is indented bars, by butt welding or overlap welding described Flexible formwork assembly is bundled into integral body.
In actual applications, use snap the line to demarcate binding steel ring position, and along graticule every 2-3m at the fixing steel ring of stupefied wood nail one iron nail, the iron nail exposed parts is bent upwards in case the reinforcing bar landing, ring binding reinforcing bar adopts the making of φ 16 indented barss, corresponding inside and outside Flexible formwork assembly, vertical spacing 200mm respectively establishes 10 circles, takes butt welding or overlap welding to connect into integral body, at last sealing part with jack with circumference 249.0m in the two ends tensions, outer circumference 253.71m.Inside and outside ring template binding reinforcing bar 3 plays a part fixing flexible template 1 and the setting of Flexible formwork assembly 1 circularity.In the reinforced-bar binding process, the ring muscle smooth-going, be close to the template batten, Tensity size is consistent.The ring beam binding reinforcing bars in order to guaranteeing rebar spacing and to prevent reinforcing cage distortion, and is fixed with above-mentioned muscle and the bottom reinforcement bars of taking root, to control reinforcing bar circularity and physical dimension.
Wherein, as shown in Figures 1 and 2, above-mentioned hound comprises: on arrange hound 6 and lower row's hound 7, the upper end of upper row's hound 6 and lower row's hound 7 is all fixing with vertical rod 11, the lower end of upper row's hound 6 and lower row's hound 7 is all fixing with ground anchor stock 8, and all being connected in earth anchor 9, earth anchor 9 is embedded in underground, plays the effect of fixing whole ring beam formwork structure.
Hound arranges upper and lower two rows, upper row's hound 6 is supported in following 0.5m place, ring beam top, the upper end band leading screw of upper row's hound 6, be used for supporting and adjusting, and be connected with vertical rod 11 usefulness fasteners, the lower end of upper row's hound 6 is supported on the ground anchor stock with the fastener connection, lower row's hound 7 is supported in the above 0.2-0.3m of bed course place, the upper end of lower row's hound 7 is connected with vertical rod 11 usefulness fasteners, the lower end of lower row's hound 7 is supported on the ground anchor stock 8 with the fastener connection, and Main Function is to play a supportive role for the Flexible formwork assembly location.Hound mainly plays stable Flexible formwork assembly, the adjustment Flexible formwork assembly is accurately in place.
Particularly, steel pipe processing is adopted in vertical rod 11, and per two become one group, every group of corresponding 4 pull bars of vertical rod; Vertical rod 11 vertically is positioned at same vertical line with pull bar, and above-mentioned pull bar is that two ends are provided with the butterfly steel pipe strap to drawing lead screw 5, and the butterfly steel pipe strap is fixing with pull bar and vertical rod 11.
Particularly, be provided with the pvc pipe cover on the pull bar.
Generally speaking, the pull bar that the ring beam template adopts is made of ф 12 round steel, be horizontally disposed with 4 rows, vertically be separately positioned on from top to bottom on 4 height and positions of 1.7m, 1.2m, 0.7m and 0.2m, horizontal range is pressed 0.6-0.7m control, establishes 4 in every group of vertical rod 11, vertically is positioned on the same vertical line, pull bar two ends reach is not less than 100mm, is fixed between inside and outside 2 steel vertical rods in both sides with the butterfly steel pipe strap.For pull bar can be repeated to utilize, at rod outer sleeve the PVC sleeve pipe is arranged.The processing of DN50 steel pipe is adopted in per two one group of vertical rod, and length is not less than 2.1m, and is jointly fixing by pull bar and hound.Pull bar and vertical rod body jointly play a part to increase Flexible formwork assembly rigidity, stablize Flexible formwork assembly, adjustment and definite Flexible formwork assembly width and accurately in place.
Particularly, internal overarm support 4 is reinforcing bar.
Further, above-mentioned ring beam module also comprises: cushion block is fixedly installed on (not shown) between Flexible formwork assembly and the ring beam reinforcing bar.
In practice of construction is used, internal overarm support 4 usefulness Φ 12 round steel processing (on-the-spot according to circumstances available diameter is not less than the steel bar end clout processing of 12mm), length is pressed 600mm blanking control, is fixed on the cage of reinforcement with tied silk.Vertically from top to bottom respectively absolute altitude 2.0m, 1.5m, 1.0m and 0.5m totally 4 height 4 circles are set, horizontal range is pressed 0.6-0.7m control, and with inner and outer template to drawing lead screw 5 interlaced arrangement, internal overarm support 4 act as Internal and external cycle template spacing and Internal and external cycle template vertical orientation before the control concreting, guarantee that Flexible formwork assembly inwardly do not pass and topple under the effect of pull bar and steel ring.The vertical cushion block buyable of ring beam finished product cushion block or prefabricated in advance at the scene, pad thickness 35mm(master muscle design protection layer thickness 40mm), be fixed on the main muscle outside.The cushion block Main Function is for guaranteeing thickness of protection tier.
Should be noted, internal overarm support 4 cutting lengths must be accurately, and with width and the circularity of guaranteeing ring beam, two ends must be smooth, must not be with point, and are bad by bundle with the protection Flexible formwork assembly.
The application in the Specific construction process for the ring beam template also comprises following content, below take 100,000 storage tank ring beams as example, to the concrete framework of ring beam template in construction, be described in more detail.
Fig. 3 is the schematic diagram that total powerstation positions unwrapping wire.As shown in Figure 3, go out first the center of tank base with total station survey, the center is increased as center of circle control stake 13, and reinforce with concrete.Then total powerstation is erected at the center of tank base, marks ring beam 12 and cage of reinforcement endothelium, outer rubber-insulated wire, totally 4 concentric circles lines at the ring beam bed course with steel nail and paint by measuring sighting distance., punch at the bituminous concrete bed course with electric impact drill by interval 1-1.2 rice arc length according to rubber-insulated wire inside and outside cage of reinforcement and the Flexible formwork assembly, Ф 14mm reinforcing bar is anchored into bituminous concrete 150-250mm, expose about 100mm.Hookup wire (taking root in the location as cage of reinforcement and Flexible formwork assembly) as take root muscle and the Flexible formwork assembly of 2 main muscle inside and outside the bottom ring beam, use scaffold building one platform in the storage tank center, platform is high consistent with the ring beam top mark, and the ring beam center is caused platform.In order to control and check Flexible formwork assembly.
Wherein, for guaranteeing the accurate positioning of Flexible formwork assembly and cage of reinforcement, and guarantee that ring beam thickness and Internal and external cycle radius all meet code requirement, the outer rubber-insulated wire radius of inner ring is by the control of standard lower limit; The rubber-insulated wire radius is by the control of the standard upper limit outside the outer ring.
After above-mentioned cage of reinforcement acceptance(check), carry out the Flexible formwork assembly assembly unit in place.As shown in Figures 1 and 2, before Flexible formwork assembly 1 is installed, set up the passage that material and constructor enter, as concreting rack platform 10.The template assembly of Internal and external cycle is in place all to begin in same point, respectively simultaneously to the left and right both sides extension, and plate face longitudinal joint all is located in the middle of vertical stupefied wooden 2, fixes with iron nail, makes all plates be linked to be the integral body that structure is consistent.The position of the last closed sealing in Flexible formwork assembly 1 two ends is located at cage of reinforcement master muscle closure and locates, and Flexible formwork assembly 1 whole accurately the correction located front the sealing first.
By begin to cooperate to the left and right both sides to drawing lead screw and hound to finely tune with total powerstation from same point, make the verticality of the width of ring beam any part upper and lower opening, interior outer radius and Flexible formwork assembly all meet code requirement, then Flexible formwork assembly is sealed.First main reinforcement is carried out solder up before the Flexible formwork assembly sealing, then carry out successively closed, the inside and outside ring binding of Internal and external cycle template reinforcing bar 3 closures, closure part vertical rod, hound are installed, tighten sealing part to drawing lead screw 5 and hound, fine setting sealing part pull bar and hound with positioning sealing place Flexible formwork assembly, carry out at last 3 welding of the inside and outside ring binding of sealing part reinforcing bar.
Carry out ring beam concreting after the Flexible formwork assembly acceptance(check).Ring beam concreting should be carried out continuously, builds and establishes the firm situation that the special messenger checks Flexible formwork assembly, support, reinforcing bar, built-in fitting etc. in the overall process, and discovery displacement or distortion will in time be processed.
Flexible formwork assembly ring beam concrete, taking to begin with two pumps car ring respectively to two ends tiltedly layer from any extends continuously and builds, every layer thickness is pressed 0.5m control, length is pressed control about 25m (by every tank car concreting one deck control), the 4th layer is watered full, then begin to the left and right both sides and receive continuously face, levelling, to closed.
Under the normal temperature condition, the ring beam template can be carried out form removal, cleaning after concreting is finished 24 hours.After can repairing, the ring beam template of local damage reuses; the fluffy thickening of plate face, the serious ring beam template of burr need be changed; for guaranteeing concrete external surface fineness, should mend high performance corrosion-proof resin surface layer of brush after ring beam bamboo offset plate Flexible formwork assembly uses 1-2 time and carry out maintenance.
It should be noted that, foregoing only is the example effect, can increase and decrease required component according to the demand of actual conditions to the application of other storage tank ring beam, and the present invention is not as limit.
In sum, use the ring beam template that the embodiment of the invention provides, the advantage that has is as follows:
1) use bamboo offset plate Flexible formwork assembly to improve the presentation quality of ring beam.
2) easy for installation, the duration is short.
3) use bamboo offset plate Flexible formwork assembly security risk little.
4) bamboo offset plate Flexible formwork assembly cost is low, uses bamboo offset plate Flexible formwork assembly cost low, for combined steel formwork 73.6%, special Large Steel template 21.6%.
5) processing ease that bamboo offset plate Flexible formwork assembly is applied in the construction of large-scale storage tank ring beam is grasped, the construction technology reasonable standard, and applied range, promotion prospect is fine.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; the protection domain that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a ring beam template is characterized in that, described ring beam template comprises: Flexible formwork assembly, many stupefied wood, inside and outside rings bundle reinforcing bar, internal overarm support, support rod unit, pull bar, wherein:
Described Flexible formwork assembly comprises the multi-layer bamboo offset plate, vertically is fixedly installed equally spaced described many stupefied wood on described bamboo offset plate, and described many stupefied wood all have predetermined altitude; Described inside and outside ring binding reinforcing bar connects into integral body with described Flexible formwork assembly; Described internal overarm support and described Flexible formwork assembly are fixed with reinforcing bar, fix drawing lead screw and described inside and outside ring binding reinforcing bar and vertical rod binding reinforcing bar, are used for supporting fixing described Flexible formwork assembly spacing; Described support rod unit comprises vertical rod and hound, and described vertical rod and hound are fixed into right-angled triangle and the fixing common described Flexible formwork assembly that supports of described Flexible formwork assembly.
2. ring beam template according to claim 1 is characterized in that, described inside and outside ring binding reinforcing bar is indented bars, by butt welding or overlap welding described Flexible formwork assembly is bundled into integral body.
3. ring beam template according to claim 1, it is characterized in that, described hound comprises: on arrange hound and lower row's hound, the upper end of described upper row's hound and lower row's hound is all fixed with described vertical rod, the lower end of upper row's hound and lower row's hound is all fixed with the ground anchor stock.
4. ring beam template according to claim 1 is characterized in that, steel pipe processing is adopted in described vertical rod, and per two become one group, every group of corresponding 4 pull bars of vertical rod;
Described vertical rod and described pull bar vertically are positioned at same vertical line, and described pull bar is that described butterfly steel pipe strap is fixed described pull bar and described vertical rod to drawing lead screw, two ends to be provided with the butterfly steel pipe strap.
5. ring beam template according to claim 4 is characterized in that, is provided with the pvc pipe cover on the described pull bar.
6. ring beam template according to claim 1 is characterized in that, described internal overarm support is reinforcing bar.
7. ring beam template according to claim 6 is characterized in that, described ring beam template also comprises: cushion block is fixedly installed between described Flexible formwork assembly and the ring beam reinforcing bar.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352568A (en) * | 2013-07-08 | 2013-10-16 | 陕西煤业化工建设（集团）有限公司 | Method for building constructional column on foundation pad |
| CN107178372A (en) * | 2017-05-17 | 2017-09-19 | 中建五局土木工程有限公司 | Shield gateway ring beam construction method |
| CN108159739A (en) * | 2017-12-09 | 2018-06-15 | 中建六局土木工程有限公司 | A kind of abnormity arc board construction method |
| CN110630009A (en) * | 2019-09-17 | 2019-12-31 | 中国化学工程第六建设有限公司 | Arc concrete structure formwork reinforcing construction method |
| CN110761316A (en) * | 2019-04-30 | 2020-02-07 | 中国石油工程建设有限公司华北分公司 | Prefabricated foundation ring beam prefabricating method and storage tank construction method applying prefabricated foundation ring beam prefabricating method |
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| CN107178372B (en) * | 2017-05-17 | 2019-05-24 | 中建五局土木工程有限公司 | Shield entrance ring beam construction method |
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| CN110761316A (en) * | 2019-04-30 | 2020-02-07 | 中国石油工程建设有限公司华北分公司 | Prefabricated foundation ring beam prefabricating method and storage tank construction method applying prefabricated foundation ring beam prefabricating method |
| CN110761316B (en) * | 2019-04-30 | 2021-10-01 | 中国石油工程建设有限公司华北分公司 | Prefabricated foundation ring beam prefabricating method and storage tank construction method applying prefabricated foundation ring beam prefabricating method |
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