CN1184393C - Round column formwork of GRP plate and its producing method and construction process - Google Patents
Round column formwork of GRP plate and its producing method and construction process Download PDFInfo
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- CN1184393C CN1184393C CNB031219845A CN03121984A CN1184393C CN 1184393 C CN1184393 C CN 1184393C CN B031219845 A CNB031219845 A CN B031219845A CN 03121984 A CN03121984 A CN 03121984A CN 1184393 C CN1184393 C CN 1184393C
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Abstract
The present invention relates to a column mould plate of flat plate glass fibre reinforced plastic, and a producing method and a construction technique thereof. The mould plate comprises a plate body of glass fiber reinforced plastic with opening and closing toughness and uniform thickness and connecting bolts, wherein the plate body of glass fiber reinforced plastic has an opening form and a closing form, namely a product is in a flat plate form when the product leaves a factory and the product is in a cylinder form when the product is used; both side edges of the plate body of glass fiber reinforced plastic, which are closed edges, are folded edges in the same direction; the inner side faces of the folded edges are fixedly connected with a long metal strip sheet or/and a sponge strip sheet, and the outer side faces of the folded edges are fixedly connected with angle steel; connecting holes are distributed on the folded edges at intervals, and are connected by closed bolts. The construction technique comprises the steps of mould supporting preparation, columnar mould positioning, columnar mould closure, vertical adjustment, concrete pouring and the mould removal. The production of the mould plate uses integration platform as a producing bottom surface, and flat plates of glass fiber reinforced plastic with different sizes are produced in the platform; different cylindrical moulds do not need producing. The present invention has the advantages of light weight, fast construction speed, convenient transportation, producing cost of mould fetal cores saving, reduction of engineering cost, etc.
Description
Technical field
The present invention relates to a kind of construction technology of building engineering shuttering.
Background technology
In the building operations of concrete cylindrical, it is assembled that traditional column-form is that the circular arc that is combined into narrow batten or steel plate are simmered weldering, and the template of assembly unit makes the concrete cylinder rough, and many seam vestiges are arranged, and assembly unit speed slow, take a lot of work, time-consuming, expense material, the template recycling rate of waterused is low.Existing Fiberglass in Round Column Formwork has only a kind of cylindrical shape state, and its making and job practices: a, core of die are made; B, cylinder glass steel form are prefabricated, as cementitious materials, use fiberglass gridding cloth with alkyd resin, are enclosed on the core of die, successively paste into the cylinder glass steel form; C, formwork are prepared; D, post mould location; E, the vertical adjustment; F, concreting; G, form removal.This method needs the variation according to body diameter or height, makes different core of die, and core of die cost of manufacture height is for higher concrete cylindrical construction inconvenience.The making of its glass fibre reinforced plastic prop mould and to surround be to finish in factory is cylindrical when dispatching from the factory, core of die manufacturing cost height not only, and occupy greatlyyer at the carrying time space, transportation is extremely inconvenient, damages easily, influences construction quality.
Summary of the invention
The invention provides a kind of construction technology of sheet glass steel column-form, solve concrete cylindrical construction inconvenience, of low quality, column-form is made, installs complicated, and speed is slow, transportation inconvenience, and recycling rate of waterused is low, the technical problem that the core of die cost of manufacture is high.
The technical scheme of sheet glass steel column-form of the present invention: it has folding toughness, the uniform glass fiber reinforced plastic plate body of thickness and connecting bolt, it is characterized in that: the glass fiber reinforced plastic plate body has expansion and closed two kinds of forms, cylinder form when dull and stereotyped form when promptly dispatching from the factory and use, the dual-side of its glass fiber reinforced plastic plate body, be that closed sides is a flanging in the same way, the fixedly connected elongated silver of the medial surface of flanging, the fixedly connected angle steel of flanging lateral surface is intervally distributed with connecting hole on the flanging, and is connected by the bolt of remaining silent.
The elongated silver of above-mentioned flanging inboard is that metal strip is or/and sponge strip.
The preparation method of above-mentioned sheet glass steel column-form, it is characterized in that: template prefabricated is to serve as to make the bottom surface with an integral platform, with unsaturated polyester resin as cementitious materials, with the low alkali glass fiber grid cloth as skeleton, successively paste into plane plate, the plate body dual-side is upwards turned up the flange that meets at right angles, and angle steel is pasted in flange outside in right angle, the elongated connecting hole of twisting the bolt of remaining silent in order to wear that is interval with of right angle flange.
The construction technology of sheet glass steel column-form of the present invention is characterized in that having the following steps:
A, formwork are prepared
When the concreting base plate, before concrete initial set, along post net axis at center-to-center, the reinforcing bar anchor ring of pre-buried inverted U, and on the concrete surface of coupled columns root border, ring belt of floating extrusion; The width of above-mentioned post root border ring belt is 50～100mm, planeness≤4mm.
B, post mould location
On the plan-position of post muscle upper and lower end, settle at least two cushion blocks, prevent the column-form in-plane displancement in the mode of interior location; Above-mentioned cushion block is cross-shaped, is placed on the plan-position of each 50mm～100mm of post upper and lower end.
C, post mould surround
Sheet glass steel column-form is lifted by post muscle side, and erect the post muscle of wrapping, two flanging lateral surfaces are aligned, tighten the closed template of the bolt of remaining silent one by one, surround sheet glass steel column-form cylindric; Above-mentioned column-form joint on the flange of a side of remaining silent, is pasted elongated sponge strip in order to the shutoff spillage.
D, the vertical adjustment
The column-form verticality adopts at least four skew cables adjustment, and suspension cable is formed by adding flower basket bolt in the middle of two sections wire rope; One end hook of suspension cable is lived cylinder mold post muscle suitable for reading, and the other end hooks the anchor ring on the base plate, relatively adjusts the verticality of column-form in twos with flower basket bolt from four direction; 40 ° of-60 ° of degree of the angle of above-mentioned suspension cable are built when finishing when concrete, carry out the final of post verticality and accurately adjust.
E, concreting; In the time will building the post concrete, in Fiberglass in Round Column Formwork root periphery, all corrals dry the hydraulic cement mortar, and expanding when the support of glass steel formwork root becomes bowlder, and secondary is smeared and pressed dry rigid mortar, makes the spillage slit up.
F, form removal.
Beneficial effect: the present invention is according to hydromechanical basic principle, at the installation scene, with thickness evenly and the sheet glass steel column-form with certain toughness wrap into the approximate circle cylinder of sealing, behind the fluid concrete, under the effect that is subjected to from the concrete fluidised form slurry expansive force of inside, the approximate cylindrical radial section inside of sealing can be subjected to equal-sized normal direction tensile stress, must be expanded into the circular cylinder of standard.Sheet glass steel column-form of the present invention is fixed with angle steel at the flanging place, and the hole along the elongated spacing of pressing 150～200mm of flanging is bored 10～ 14 is connected with flat-bed machine screw or bolt.Circle Qu Jingdu height, smooth surface, whole pillar has only the vestige of a vertical abutment joint.Sheet glass steel column-form of the present invention is plate shaped when dispatching from the factory, surround at the scene, straightening, assembling, this has just fundamentally solved in the past that column-form adds man-hour, the error in circularity control, the length of glass fiber reinforced plastic flat board is exactly the girth of cylinder, and its width is the height of cylinder just.In the planar range of integral platform, can make the glass fiber reinforced plastic flat board of various sizes, that is to say the sheet glass steel column-form that on identical platform, can make multiple diameter and height, realize that when construction the post mould surrounds and straightening, needn't make different cylindrical die fetal rhythms because of the variation of body diameter or height, being prefabricated into cylindrical template when dispatching from the factory compares, has convenient transportation, save the core of die manufacturing cost, reduce construction costs, in light weight, the tensile strength height, toughness is moderate, wear, alkali resistant, thickness is even, smooth surface, speed of application is fast, advantages such as quality assurance.
Description of drawings
Fig. 1 is that the present invention is dispatched from the factory and the structural representation of deployed condition when depositing usually;
Fig. 2 is the partial enlarged drawing among Fig. 1;
Fig. 3 is the structural representation of the present invention's cylinder state when constructing;
Fig. 4 is the scheme of installation of the present invention when constructing;
Fig. 5 is the present invention Zhi Li and vertical adjustment schematic diagram when constructing.
The specific embodiment
As shown in Figure 1, 2, glass fiber reinforced plastic plate body of the present invention has expansion and closed two kinds of forms, cylinder form when dull and stereotyped form when promptly dispatching from the factory and use, the dual-side of its glass fiber reinforced plastic plate body 1, be that closed sides is a flanging in the same way, the fixedly connected elongated silver of the medial surface of flanging, the fixedly connected angle steel 2 of flanging lateral surface is intervally distributed with connecting hole 4 on the flanging, and is connected by the bolt 5 of remaining silent.The elongated silver 6 of above-mentioned flanging inboard is that metal strip is or/and sponge strip.Sheet glass steel column-form is to serve as to make the bottom surface with an integral platform when making, and, as skeleton, successively pastes and forms plate shaped template with the low alkali glass fiber grid cloth as cementitious materials with unsaturated polyester resin.Be coated with one deck adhesive layer 7 between sheet glass steel flanging lateral surface and the connecting angle 2.
The column-form construction technology process: post root cleaning → post muscle is latent examine → take operating desk → colligation cushion block → post mould in place → the post mould surrounds, tighten the post mould remain silent bolt → peace suspension cable → initial adjustment vertical → build post concrete → polyphony vertically → post concrete health → unload suspension cable → pine bolt → form removal cleaning → brush release agent of remaining silent.
The on-the-spot mounting process of sheet glass steel column-form is shown in Fig. 3,4,5:
A, formwork are prepared:
When concreting floor (base plate), before concrete initial set, along post net axis greatly about the mid point of center-to-center, the 6 reinforcing bar anchor rings 8 of pre-buried inverted U.And on the concrete surface of coupled columns root border, wide ring belt of 50～100mm of floating extrusion, planeness≤4mm.
B, post mould location:
On the pillar reinforcing bar on the plan-position of each 50mm～100mm of post upper and lower end, each settles four to be cross-shaped cushion block 9, prevents the stencil plane displacement in the mode of interior location.
C, post mould surround
By 2～4 people template is lifted by post muscle side during the erection column mould, the template joint can be pasted elongated sponge strip in order to the shutoff spillage on the flange of a side of remaining silent.Template is erect the pillar reinforcing bar of wrapping, tighten the closed template of the bolt of remaining silent one by one.The template lateral surface is not done any fixing, to avoid limiting the free wxpansion of Fiberglass in Round Column Formwork 12, influences naturally the expand circle of concrete with column-form, as shown in Figure 3.
D, the vertical adjustment
The mode of tiltedly drawing is adopted in the adjustment of pillar verticality.Suspension cable 10 is formed by adding flower basket bolt 11 in the middle of two sections 6 reinforcing bars (or seizing wire).After the post mould was in place, an end hook of suspension cable the cylinder reinforcing bar that stretches out in post mould (about 100mm) the suitable for reading stirrup encrypted area (that is: lacing wire not arm-tie); The other end hooks the anchor ring on building (end) plate.At this moment, relatively tentatively adjust the verticality of column-form in twos with flower basket bolt from four direction, 40 ° of-60 ° of degree of the angle of suspension cable are built when finishing when post is concrete, carry out the final of post verticality and accurately adjust.As shown in Figure 5.
E, concreting
In the time of will building the post concrete, in Fiberglass in Round Column Formwork root periphery, all corrals dry the hydraulic cement mortar, and expanding when the support of glass steel formwork root becomes bowlder, and secondary is smeared and pressed dry rigid mortar, makes the spillage slit up.
Concrete slump 120-180mm, lift height 500-700mm; The concrete of every post should be built in one hour and be finished; After the post verticality is checked correction, vibrating spear must be inserted the about 500-1000mm of concrete and vibrate once more, making has good bonding between concrete and the reinforcing bar.
F, form removal
Collapsible die when the cylinder concrete strength reaches 1 Mp.In the ordinary course of things, when 20 ℃ of temperature, last 10-12 hour, every sheet glass steel form can have enough to meet the need 2 times in one day.
During form removal, unscrew flower basket bolt earlier, unload suspension cable; After turning on the bolt of remaining silent, template can automatically spring open from the seam crossing of remaining silent, and template is removed get final product.
Depositing of sheet glass steel column-form: pliable and tough because of panel, flanging is firm, should avoid curling and place, in order to avoid the flange that fractures.Correct way is that its tiling is placed on the vacant lot, forbids to trample the flanging of remaining silent.
Determining of sheet glass steel column-form thickness:
1, calculates the maximum lateral pressure of concrete according to conventional method to template.
2, choose the fan-shaped of any central angle, with making a concerted effort of Definite Integral Calculation concrete lateral pressure.
3, according to the fan-shaped internal stress of making a concerted effort to calculate glass steel formwork.
4, the safe stress of glass fiber reinforced plastic is got 20Mpa, can determine template thickness (between 2-6mm).
Technical indicator (the unit: mm) of sheet glass steel column-form
| Inner surface | Smoothly, pore-free, no woven design, similar glass surface | |
| Thickness | Big face | -0.2 +0.5 |
| Corner | 0 +2 | |
| Size | Highly | -2 +5 |
| Width | ±2 | |
| Remain silent | Parallel | ≤2 |
| The inner face discrepancy in elevation | ≤1 | |
| The diagonal angle Founder | 3mm | |
| External surface | Do not have obvious convex closure, the angle steel of remaining silent is connected firmly | |
| Tensile strength | ≥178Mpa | |
Claims (6)
1, a kind of construction technology of sheet glass steel column-form is characterized in that having the following steps:
A, formwork are prepared
When the concreting base plate, before concrete initial set, along post net axis at center-to-center, the reinforcing bar anchor ring of pre-buried inverted U, and on the concrete surface of coupled columns root border, ring belt of floating extrusion;
B, post mould location
On the plan-position of post muscle upper and lower end, each settles at least four cushion blocks, prevents the in-plane displancement of column-form in the mode of interior location;
C, post mould surround
Sheet glass steel column-form is lifted by post muscle side,, two flanging lateral surfaces are aligned, tighten the closed template of the bolt of remaining silent one by one, surround sheet glass steel column-form cylindric its setting cylinder reinforcing bar of wrapping;
D, the vertical adjustment
The column-form verticality adopts at least four skew cables adjustment, and suspension cable is formed by adding flower basket bolt in the middle of two sections wire rope; One end hook of suspension cable is lived cylinder mold post muscle suitable for reading, and the other end hooks the anchor ring on the base plate, from four direction relatively in twos, adjusts the verticality of column-form with flower basket bolt;
E, concreting;
F, form removal.
2, the construction technology of sheet glass steel column-form according to claim 1 is characterized in that, among the described a, the width of post root border ring belt is 50～100mm, planeness≤3mm.
3, the construction technology of sheet glass steel column-form according to claim 1 is characterized in that, among the described b, it is cross-shaped that cushion block is, and is placed on the plan-position of each 50mm～100mm of post upper and lower end.
4, the construction technology of sheet glass steel column-form according to claim 1 is characterized in that, among the described c, the column-form joint on the flange of a side of remaining silent, is pasted elongated sponge strip in order to the shutoff spillage.
5, the construction technology of sheet glass steel column-form according to claim 1 is characterized in that, among the described d, 40 ° of-60 ° of degree of the angle of suspension cable are built when finishing when concrete, carry out the final of post verticality and accurately adjust.
6, the construction technology of sheet glass steel column-form according to claim 1, it is characterized in that, among the described e, in the time of will building the post concrete, in Fiberglass in Round Column Formwork root periphery, all corrals dry the hydraulic cement mortar, and expanding when the support of glass steel formwork root becomes bowlder, secondary is smeared and is pressed dry rigid mortar, makes the spillage slit up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031219845A CN1184393C (en) | 2003-04-21 | 2003-04-21 | Round column formwork of GRP plate and its producing method and construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031219845A CN1184393C (en) | 2003-04-21 | 2003-04-21 | Round column formwork of GRP plate and its producing method and construction process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1458372A CN1458372A (en) | 2003-11-26 |
| CN1184393C true CN1184393C (en) | 2005-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031219845A Expired - Fee Related CN1184393C (en) | 2003-04-21 | 2003-04-21 | Round column formwork of GRP plate and its producing method and construction process |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107675879A (en) * | 2017-11-21 | 2018-02-09 | 成都市绿洲节水灌溉工程有限公司 | A kind of landscape post former fixed by neck |
| CN109138422A (en) * | 2018-08-24 | 2019-01-04 | 中国十七冶集团有限公司 | A kind of high tensile flexible composite material column-form construction method |
| CN112177358A (en) * | 2020-08-10 | 2021-01-05 | 锦萧建筑科技有限公司 | Zipper type connecting mechanism of prefabricated column and mounting method thereof |
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Granted publication date: 20050112 Termination date: 20100421 |