CN102635231A - Self-stabilization support system for inner film of circular reinforced concrete structure - Google Patents
Self-stabilization support system for inner film of circular reinforced concrete structure Download PDFInfo
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- CN102635231A CN102635231A CN201210107278XA CN201210107278A CN102635231A CN 102635231 A CN102635231 A CN 102635231A CN 201210107278X A CN201210107278X A CN 201210107278XA CN 201210107278 A CN201210107278 A CN 201210107278A CN 102635231 A CN102635231 A CN 102635231A
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Abstract
The invention particularly relates to a self-stabilization support system for an inner film of a circular reinforced concrete structure, aiming at solving the problem that the inner film of the conventional circular reinforced concrete structure is hard to disassemble, easy to cause pulp leakage during casting, and easy to influence the vertical transportation work. The system comprises a plurality of layers of circular inner films which are arranged with one another up and down, the circular inner films are formed by connection of a plurality of pairs of arc inner film bodies, a gap between the adjacent sides of each pair of the inner film bodies is provided with a baffle piece, horizontal rib plates and vertical rib plates, which are crosswise arranged with one another, are fixed on the inner side of each inner film body, the inner side of each inner film body is provided with two support rods which have the same radian as each inner film body and are penetrated on the vertical rid plates, and one adjacent ends of the two support rods are in bolted connection with a forward/backward screw thread type sleeve. The system is reasonable and reliable in structural design, so that the exposure time of the wall of a vertical well can be greatly shortened, and the construction risk can be reduced; and the middle space of the vertical well can not be occupied, so that a vertical logistics corridor is convenient to be unobstructed, the work period is shortened, and the cost is reduced, and the system has the advantages of being ingenious in design, explicit in force application, and convenient to implement.
Description
Technical field
The present invention relates to the reinforced concrete structure support system, be specially a kind of ring-type reinforced concrete structure inner membrance from steady support system.
Background technology
In the construction work, the high pier of bridge cast-in-place hollow, chimney stack, vertical shaft retaining wall etc. all need be used the reinforced concrete hollow structure, when fluid concrete, need stable internal mold.
The present internal mold of most of similar engineering is looked the significance level and the cost of the inboard exposed face of circulus, adopts punching block or wooden model respectively.But mostly the stable of template is vertically and the horizontal support system; Also utilize the intensity of concrete structure own, structurally the method through pre-buried suspension template.
When often constructing first floor, vertical force reaches ground through various forms, and second layer template is supported on the first floor template; After second layer concrete reaches certain intensity, after the dismounting first floor template, be mounted to the 3rd layer and continue construction; At this moment, all template weight are born by second layer built-in fitting.Successively construct to structural top with the method, begin to need every layer from the second layer built-in fitting is set.
The built-in fitting of circulus is actually on the hoop template and holes; Insert bar dowel in the hole, the bar dowel outside is installed nut and is fixed, when the concrete of cast has certain intensity; Bar dowel also has certain stability; Utilize the shear strength of bar dowel, except that bearing this layer template weight, also the weight to upper former plays a supportive role before last layer concrete does not reach certain intensity.
After treating that concrete reaches intensity, because of template has certain thickness in normal direction, there is certain taper in template in thickness approach; Stripping is difficulty; Built-in fitting stretches out the template certain-length in addition, template can only level translation to the inside one segment distance (embedded bar length) after, could remove; Often need use instruments such as crowbar, very easily damage template; Exposed steel bar very easily makes moist and gets rusty, and need in time cut off the pre-buried bar dowel that all expose after the form removal, but directly influence concrete appearance with methods such as oxygen cut off.
For the ease of form removable, the boring of embedded bar all is slightly larger than bar diameter on the template, is prone to produce spillage during fluid concrete, reduces concrete quality and pollution structure outward appearance.
For preventing concrete pouring and the lateral force effect lower bolster displacement of vibrating, need carry out necessary support in the hollow-core construction inboard, directly influence the logistics hauling operation of vertical direction.
Summary of the invention
The present invention provides a kind of ring-type reinforced concrete structure inner membrance from steady support system in order to solve the problem that is prone to spillage when existing ring-type reinforced concrete structure inner membrance is removed difficulty, cast and influences vertical hauling operation.
The present invention adopts following technical scheme to realize: ring-type reinforced concrete structure inner membrance is from steady support system; Comprise the several layers annular inner membrance that is provided with up and down; The annular inner membrance is some membrane body in the arc to be formed by connecting; The place, slit of every internally adjacent side of membrane body be provided be positioned at its outside and with every internally membrane body catch of an inner membrance body-fixed wherein; Interior membrane body inboard all is fixed with horizontal gusset arranged in a crossed manner and vertical gusset, and interior membrane body inboard is provided with identical with its radian and is through two support bars on the vertical gusset, and an adjacent terminal bolt of two support bars is connected with positive and negative screw thread jacket tube.
Drive the support bar elongation through rotating positive and negative screw thread jacket tube; Apply the outside tension force of hoop for interior membrane body; Thereby be converted into annular inner membrance to concrete normal pressure; Its normal pressure is offset by the concrete with certain intensity, improves the frictional force between annular inner membrance and the concrete, realizes that hoop supports; The concrete pouring stage purpose of spillage not when the catch that place, simultaneously every internally membrane body slit is provided with realizes that annular inner membrance is flexible.
When the annular inner membrance is installed, only require that to satisfy the installation site accurate, wouldn't apply axial compression; Connection between the interior membrane body adopts template to connect fixed card, fluid concrete and treat that concrete has certain intensity after, apply axial compression through rotating the inboard support bar of the internal membrane body of positive and negative screw thread jacket tube; Membrane body is out of shape laterally in impelling; And then annular inner membrance tightly is pressed in concrete structural surface, under the effect of this pressure, improved the frictional force between annular inner membrance and the concrete structure; Utilize this frictional force to bear the weight of annular inner membrance and other load, realize that support system is from steady purpose; Generally speaking, shellring shape inner membrance is installed from bottom to up and after internally the inboard support bar of membrane body applies axial compression, is unclasped the axial stress of orlop annular inner membrance support bar; Block-by-block unclamps interior membrane body; Move on the membrane body block-by-block in should layer and be installed in shellring shape inner membrance top, cycling is when removing the superiors' annular inner membrance; After discharging the support bar circumference stress; Suspend support in midair by built-in fitting temporarily, or adopt crane gear once the superiors' annular inner membrance to be extracted, overcome the problem that is prone to spillage when existing ring-type reinforced concrete structure inner membrance is removed difficulty, cast and influences vertical hauling operation.
The inboard positive and negative screw thread jacket tube quantity of interior membrane body is two; And above-below direction distributes, and the two ends of each positive and negative screw thread jacket tube all are screwed with support bar, and the outer end of support bar all is fixed with the support termination of diameter greater than the support bar diameter; When hollow pier (chimney) inside is provided with the receipts slope; Realize the change of the gradient through the length of regulating lower support bar, simultaneously the support termination be arranged so that support bar on membrane body can not stagger in each, influence the support effect.
Reasonable in design of the present invention is reliable; A kind of internal mold that is the steel hoop concrete structure construction supports new system, in the construction of tunnel ventilation vertical shaft, shaft sinking and two lining constructions is carried out synchronously especially; Shorten vertical shaft borehole wall open-assembly time greatly, reduced construction risk; And do not take the vertical shaft central space, it is unimpeded to be convenient to vertical logistics corridor, has reduced cost when having shortened the duration, have be skillfully constructed, stressed clear and definite, the advantage that is easy to implement, be applicable in the engineering of hollow pier, tunnel ventilation vertical shaft two linings.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an inner membrance main body structure sketch map among Fig. 1.
Among the figure: membrane body in the 1-, 2-catch, the horizontal gusset of 3-, the vertical gusset of 4-, 5-support bar, the positive and negative screw thread jacket of 6-tube, 7-support termination.
The specific embodiment
Ring-type reinforced concrete structure inner membrance is from steady support system; Comprise the several layers annular inner membrance that is provided with up and down; The annular inner membrance is some membrane body in the arc 1 to be formed by connecting; The place, slit of every internally adjacent side of membrane body 1 be provided be positioned at its outside and with every internally membrane body 1 fixing catch 2 of membrane body 1 wherein; Interior membrane body 1 inboard all is fixed with horizontal gusset arranged in a crossed manner 3 and vertical gusset 4, and interior membrane body 1 inboard is provided with an adjacent terminal bolt identical with its radian and that be through 5, two support bars 5 of two support bars on the vertical gusset 4 and is connected with positive and negative screw thread jacket tube 6.
In the practical implementation process, when hollow pier (chimney) inside is provided with the gradient of receiving the slope when big, interior membrane body 1 is provided with the regulating block of certain width; The above steel hoop concrete structure in ground such as hollow pier, chimney stalk can begin upright first floor annular inner membrance from ground, and annular inner membrance weight is directly by ground supports; Underground circular reinforced concrete structures such as airshaft adopt the ground rigging suspention to support first floor annular inner membrance weight, borehole wall wall seat supports first floor annular inner membrance weight also capable of using.
Claims (2)
1. a ring-type reinforced concrete structure inner membrance is from steady support system; It is characterized in that: comprise the several layers annular inner membrance that is provided with up and down; The annular inner membrance is some membrane body in the arc (1) to be formed by connecting; The place, slit of every internally adjacent side of membrane body (1) be provided be positioned at its outside and with every internally membrane body (1) fixing catch (2) of a membrane body (1) wherein; Inboard horizontal gusset (3) arranged in a crossed manner and the vertical gusset (4) of all being fixed with of interior membrane body (1); And interior membrane body (1) inboard is provided with identical with its radian and is through two support bars (5) on the vertical gusset (4), and an adjacent terminal bolt of two support bars (5) is connected with positive and negative screw thread jacket tube (6).
2. ring-type reinforced concrete structure inner membrance according to claim 1 is from steady support system; It is characterized in that: inboard positive and negative screw thread jacket tube (6) quantity of interior membrane body (1) is two; And above-below direction distributes; The two ends of each positive and negative screw thread jacket tube (6) all are screwed with support bar (5), and the outer end of support bar (5) all is fixed with the support termination (7) of diameter greater than support bar (5) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210107278.XA CN102635231B (en) | 2012-04-13 | 2012-04-13 | Self-stabilization support system for inner film of circular reinforced concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210107278.XA CN102635231B (en) | 2012-04-13 | 2012-04-13 | Self-stabilization support system for inner film of circular reinforced concrete structure |
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| CN102635231A true CN102635231A (en) | 2012-08-15 |
| CN102635231B CN102635231B (en) | 2014-06-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106401222A (en) * | 2016-10-26 | 2017-02-15 | 卢永富 | Cylindrical conveying gallery bridge |
| CN109707157A (en) * | 2017-10-26 | 2019-05-03 | 孙阳 | The assemble method of the outer purlin component of tower |
| CN111910915A (en) * | 2020-07-16 | 2020-11-10 | 中国二十冶集团有限公司 | Cast-in-place concrete cylinder structure internal mold reinforcing device and construction method thereof |
| CN113847036A (en) * | 2021-10-25 | 2021-12-28 | 安徽理工大学 | Double-wall seat structure for deep drilling shaft after well wall bottom breaking and construction method |
| CN114750284A (en) * | 2022-05-10 | 2022-07-15 | 北京建工集团有限责任公司 | Connecting structure of steel structure and concrete and construction method |
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| CN111910915A (en) * | 2020-07-16 | 2020-11-10 | 中国二十冶集团有限公司 | Cast-in-place concrete cylinder structure internal mold reinforcing device and construction method thereof |
| CN113847036A (en) * | 2021-10-25 | 2021-12-28 | 安徽理工大学 | Double-wall seat structure for deep drilling shaft after well wall bottom breaking and construction method |
| CN114750284A (en) * | 2022-05-10 | 2022-07-15 | 北京建工集团有限责任公司 | Connecting structure of steel structure and concrete and construction method |
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| CN102635231B (en) | 2014-06-04 |
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