CN111424968A - Slip-form construction method for buttress column silo - Google Patents
Slip-form construction method for buttress column silo Download PDFInfo
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- CN111424968A CN111424968A CN202010350188.8A CN202010350188A CN111424968A CN 111424968 A CN111424968 A CN 111424968A CN 202010350188 A CN202010350188 A CN 202010350188A CN 111424968 A CN111424968 A CN 111424968A
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- 238000009751 slip forming Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 claims abstract description 27
- 239000004567 concrete Substances 0.000 claims abstract description 16
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 5
- 238000009415 formwork Methods 0.000 claims description 49
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 230000008569 process Effects 0.000 claims description 9
- 238000004873 anchoring Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 description 35
- 230000001788 irregular Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000009435 building construction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/22—Sliding forms raised continuously or step-by-step and being in contact with the poured concrete during raising and which are not anchored in the hardened concrete; Arrangements of lifting means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/121—Construction of stressing jacks
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- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
A slip-form construction method for a buttress column silo is a reinforced concrete structure body comprising a silo main body silo wall and a plurality of prestressed buttress columns, wherein a plurality of prestressed anchor holes are formed in the buttress columns, the slip-form construction comprises the manufacturing and in-place procedures of a buttress column silo outer template and a buttress column silo inner template, and the procedures comprise the steps of manufacturing a buttress column side wall inner template, manufacturing a silo wall outer template, manufacturing a buttress column silo inner template, and in-place of the buttress column silo outer template and the buttress column silo inner template. The invention creatively applies the external template of the buttress column silo consisting of the internal template of the sidewall of the buttress column, the external template of the silo wall and the external template of the buttress column, completes the slip-form construction of the buttress column silo by the matching of the internal template and the external template of the buttress column silo, and solves the quality problems of the concrete pulling crack of the buttress column and the like which are easily caused during the slip-form construction of the silo with the prestressed buttress column in the prior art and the occurrence of the slip stopping event caused by the irregularity of the buttress column.
Description
Technical Field
The invention relates to a slip-form construction method, in particular to a slip-form construction method for a buttress column silo, and belongs to the technical field of building construction methods.
Background
The slip-form construction is a construction method which has the advantages of high mechanization degree, high construction speed, small occupied site, strong structural integrity, good anti-seismic performance, guaranteed safe operation and obvious environmental and economic comprehensive benefits in cast-in-place concrete structural engineering construction, so that the slip-form construction is rapidly developed and widely applied in modern buildings, for example, large-scale material storage silo buildings are usually constructed in a slip-form mode.
The slip form construction comprises common or special tool type templates, and also comprises power slip-lift equipment and a matched construction process, at present, the main slip-lift equipment is a hydraulic jack, during construction, a group of jacks synchronously act to drive a tool type template or a sliding frame with the height of more than 1 m to slide along the surface of the concrete or the template which is just formed, the concrete is poured into a sleeve groove from the upper opening of the template layer by layer, each layer is generally not more than 30cm, when the concrete at the lowest layer in the template reaches a certain strength, the sleeve groove of the template slides along the poured concrete surface or the sliding frame slides along the outer surface of the template and slides upwards for about 30cm under the action of a lifting machine, and the operation is continuously circulated in such a way until the designed height is reached, and the whole construction is completed.
The slip-form construction requires that a concrete structure is a regular geometric section with unchanged boundary in a certain direction, and a non-slip construction principle is required to be ensured, which brings trouble to the slip-form construction of a silo building designed with prestressed buttress columns.
In the prior art, some special methods are proposed for the variable geometric section of the boundary appearing in the slip form construction, such as:
the invention discloses a cylindrical silo slip form construction process (application number CN200710054876.4), which comprises the procedures of cylinder wall steel bar binding, enclosure and lifting frame fixing in place, inner and outer templates in place, inner and outer operating platform installation in place, jack installation, hydraulic control console in place and oil way installation, concrete pouring, template sliding lifting and slip form system dismantling, wherein the inner operating platform in the inner and outer operating platform installation in place procedure is of a multi-section truss structure and is arranged along the inner circumferential direction;
the invention discloses a circular reinforced concrete chimney cylinder wall construction method and a hydraulic sliding mould device (application number CN201110422679. X). the hydraulic sliding mould construction adopts an outer cylinder wall sliding mould, inner lining masonry and an outer sliding and inner building construction process of synchronous construction of the outer cylinder wall and the inner lining, the hydraulic sliding mould construction is dynamically and continuously constructed, a template is formed by combining a fixed template, a movable template and a collecting and distributing template, the diameter and the circumference of the whole combined template structure are convenient to assemble and disassemble, and the diameter and the circumference can be gradually reduced along with the requirement of the diameter change of a chimney;
the invention discloses a construction method for a large-scale coal bunker wall (application number CN 201210301764.5). in the construction method for the wall of the coal bunker, a temporary support body is arranged in an installation seam of two ring beam parts, and then the inner side ends of corresponding stirrups are bent to leave out a rising path of a slip-form operation system, so that the disassembly and the reassembly of the slip-form operation system at the ring beam parts are omitted, and the working efficiency is improved.
However, in the above prior art, there is no clear method and direct teaching of how to prevent concrete pull-cracking of buttress columns and the occurrence of slip-stop events when formworks are operated on irregular geometric sections, using slip-form construction for silos with prestressed buttress columns.
Disclosure of Invention
In order to solve the defects of the prior art, the embodiment of the invention provides a slip-form construction method for a buttress column silo, and aims to provide a special slip-form construction method capable of preventing the occurrence of the pulling crack of buttress column concrete and the slip stopping event for the silo with a prestressed buttress column, ensure the slip-form construction quality of the buttress column and the silo wall thereof, shorten the construction period and provide another method with pioneering property for slip-form construction.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
a slip-form construction method of a buttress column silo;
the buttress column silo is of a reinforced concrete structure and comprises a silo main body silo wall and a plurality of prestressed buttress columns distributed on the outer peripheral wall of the silo main body silo wall, the buttress column silo has cross sections with the same shape and size from a base part to the top of the silo main body, the cross section of the buttress column is trapezoid or rectangular, a plurality of prestressed anchor holes are further formed in two side walls of the buttress column represented by a waist line of the trapezoid or a side edge of the rectangle, and an anchor, a corrugated pipe and a prestressed anchor rope are arranged in each anchor hole;
the slip form construction method comprises the following steps:
the method comprises the following steps of binding built-in steel bars of the silo main body silo wall and the buttress column, fixing and positioning the slipform construction enclosure and the lifting frame, manufacturing and positioning the outer formwork of the buttress column silo and the inner formwork of the buttress column silo, installing and positioning an internal and external operation platform for slipform construction, installing and positioning the outer formwork of the buttress column silo and the inner formwork of the buttress column silo, pouring concrete of the buttress column silo, lifting the outer formwork of the buttress column silo and the inner formwork of the buttress column silo, and dismantling the outer formwork of the buttress column silo and the inner formwork of the buttress column silo, and is characterized in that:
the buttress cylinder silo outer template comprises a buttress cylinder sidewall inner mold, a silo wall outer template and a buttress cylinder outer template;
the manufacturing and in-place process of the external template of the buttress cylinder silo and the internal template of the buttress cylinder silo comprises the following steps:
s1) manufacturing the inner mold of the side wall of the buttress, comprising:
s11) manufacturing a side wall inner template according to the design thickness of the buttress, wherein the height of the side wall inner template is the design height of the buttress;
s12) manufacturing an anchor hole internal mold according to the design appearance and size of the anchor hole, and forming an anchoring hole at the bottom of the anchor hole internal mold according to the design;
s13) installing and fixing the anchor hole internal mold on the side wall internal mold plate according to the designed position of the anchor hole to form the buttress column side wall internal mold;
s2) manufacturing the silo wall outer formwork and the buttress column outer formwork, wherein:
the silo wall external template is manufactured according to the design of the silo main body external wall;
the buttress column outer formwork comprises a bottom plate and side plates on two sides of the bottom plate, and the side plates are connected with the silo wall outer formwork;
the width of the inner side of the bottom plate is equal to the design width of the buttress plus the thickness of the inner die plates on the side walls on two sides;
the width of the inner side of the side plate is equal to the design thickness of the buttress column; and is
The side sliding plate, the side plate and the bottom plate form a side sliding groove of the buttress outer template, and the side sliding groove is used for maintaining and fixing the sidewall inner template and is used for sliding and lifting the buttress outer template along the sidewall inner template;
s3) manufacturing an inner template of the buttress column silo;
the inner template of the buttress column silo is manufactured according to the designed inner wall of the buttress column silo;
s4) positioning the external template of the buttress column silo and the internal template of the buttress column silo, including:
s41) arranging the inner molds of the side walls of the buttress columns on two sides of the side walls of the built-in steel bars of the buttress columns, and arranging the corrugated pipes in the silo walls of the silo main body and the built-in steel bars of the buttress columns through the anchoring holes;
s42) arranging the silo wall outer template and the buttress column outer template on the outer sides of the steel bars arranged in the silo wall of the silo main body and the steel bars arranged in the buttress columns, and clamping the buttress column side wall inner mold in the side chute to complete the positioning of the buttress column silo outer template;
s43) arranging the buttress column silo inner formwork on the inner side of the steel bar arranged in the silo wall of the silo main body, namely completing the positioning of the buttress column silo inner formwork.
Furthermore, the buttress column silo is a buttress column circular silo.
Further, the side wall inner template is a wooden plate.
Furthermore, the side sliding plate is made of angle steel.
Further, the angle steel is No. 50 angle steel.
Compared with the prior art, the embodiment of the invention has the beneficial effects and obvious progress that:
1) the method for constructing the buttress column silo in the slip form provided by the embodiment of the invention creatively applies the buttress column silo outer template consisting of the buttress column side wall inner template, the silo wall outer template and the buttress column outer template in the common silo slip form construction, completes the slip form construction of the buttress column silo by matching the buttress column silo outer template with the buttress column silo inner template, solves the problems of the prior art that when the silo with the prestressed buttress column adopts the slip form construction, the problem quality caused by concrete pulling crack of the buttress column is very easy to occur, and the occurrence of a slip stopping event is caused by the irregularity of the buttress column side wall, can ensure the quality of the buttress column silo slip form construction, can promote the prestressed construction, and shortens the construction period of the whole buttress column silo;
2) in the sliding-form construction method of the buttress column silo provided by the embodiment of the invention, as the buttress column side wall internal mold is arranged on the irregular side wall of the buttress column, the most troublesome problem of the irregular side wall of the buttress column to be faced by the common silo wall external template is solved, the working condition that the boundary of a building is an unchangeable regular geometric section is met by common sliding-form construction, and the buttress column silo external template in the embodiment of the invention can slide and lift on the smooth surface of the sidewall internal template with the unchangeable geometric section of the buttress column side wall internal mold, so that the construction quality is improved, the continuity of sliding-form construction is ensured, the occurrence of a sliding stopping event is eliminated, and the construction progress is improved;
3) the slip-form construction method of the buttress column silo provided by the embodiment of the invention has the advantages of convenient and simple template manufacture, low cost, excellent effect, strong practicability and good expansibility, provides a referential example and operable inspiration for slip-form construction of buildings with irregular geometric sections, and provides a pioneering method for slip-form construction, so that the method has great popularization and application values.
Drawings
To more clearly illustrate the technical solution of the present invention, the drawings required for the embodiment of the present invention will be briefly described below.
It should be apparent that the drawings in the following description are only drawings of some embodiments of the invention, and that other drawings can be obtained by those skilled in the art without inventive exercise, and the other drawings also belong to the drawings required by the embodiments of the invention.
FIG. 1 is a schematic cross-sectional view of a partial structure of a buttress silo according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a portion of the external buttress silo formwork and the internal buttress silo formwork of an embodiment of the present invention;
fig. 3 is a schematic partial front view and sectional structural view of the inner mold of the sidewall of the buttress in accordance with the embodiment of the present invention.
In the figure:
100-silo main body silo wall, 101-silo main body silo wall built-in reinforcing steel bar;
200-buttress, α -buttress design width, β -buttress design thickness, 201-buttress built-in steel bar, 210-anchor hole, 211-anchor and 212-prestressed anchor cable;
300-buttress silo external template, 310-buttress sidewall internal mold, 320-silo wall external template and 330-buttress silo external template;
311-side wall inner template, 312-anchor hole inner mold, 313-anchoring hole, 331-bottom plate, 332-side plate and 333-side sliding plate;
400-buttress column silo inner formwork.
Detailed Description
In order to make the objects, technical solutions, advantages and significant progress of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings provided in the embodiments of the present invention, and it is obvious that all of the described embodiments are only some embodiments of the present invention, but not all embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the accompanying drawings of the embodiments of the present invention are used for distinguishing different objects and not for describing a particular order. Furthermore, the terms "comprises" and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
It is to be understood that in the description of the embodiments of the present invention, the use of the terms orientation or position, which are used in the description of the embodiments of the present invention, are only based on the orientation or position shown in the drawings of the embodiments of the present invention, and are used for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element in question must have a specific orientation, a specific orientation configuration and operation, and therefore, should not be taken as limiting the invention.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, movably connected, or integrated; either directly or indirectly through intervening media, intangible signal, or even optical, communication between two elements, or an interaction between two elements, unless expressly limited otherwise.
The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be further noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
The technical means of the present invention will be described in detail below with specific examples.
Examples
A slip-form construction method of a buttress column silo;
FIG. 1 shows a schematic cross-sectional view of a partial structure of a buttress silo according to an embodiment of the present invention:
the buttress column silo of the embodiment is of a reinforced concrete structure and comprises a silo main body silo wall 100 and a plurality of prestressed buttress columns 200 distributed on the outer peripheral wall of the silo main body silo wall 100, wherein the buttress column silo has a cross section with the same shape and size from the base part to the top part of the silo main body, the cross section of the buttress column 200 is trapezoid or rectangle, a plurality of prestressed anchor holes 210 are further arranged on two side walls of the buttress column 200 represented by the waist line or the side edge of the trapezoid, and an anchor 211, a corrugated pipe (not shown in the figure) and a prestressed anchor rope 212 are arranged in each anchor hole 210;
as shown in fig. 1, a schematic cross-sectional view of a partial structure of a buttress silo according to an embodiment of the present invention, fig. 2, a schematic cross-sectional structure of an external template of the buttress silo according to an embodiment of the present invention and a schematic cross-sectional structure of a partial internal template of the buttress silo according to an embodiment of the present invention, and fig. 3, a schematic partial front view and a schematic sectional structure of an internal template of a sidewall of the buttress silo according to an embodiment of the present invention, the sliding-form construction method includes:
the method comprises the steps of binding the steel bars 101 and the steel bars 201 built in the silo walls of the silo main body, fixing and positioning a slipform construction enclosure (not shown in the figure) and a lifting frame (not shown in the figure), manufacturing and positioning a buttress silo outer formwork 300 and a buttress silo inner formwork 400, installing and positioning an internal and external operation platform (not shown in the figure) in slipform construction, installing and positioning a device (not shown in the figure) for jacking and controlling the buttress silo outer formwork 300 and the buttress silo inner formwork 400, pouring buttress silo concrete, sliding and lifting the buttress silo outer formwork 300 and the buttress silo inner formwork 400, and removing the buttress silo outer formwork 300 and the buttress silo inner formwork 400, wherein:
the buttress cylinder silo external template 300 comprises a buttress cylinder sidewall internal template 310, a silo wall external template 320 and a buttress cylinder external template 330;
the manufacturing and in-place process of the external template 300 and the internal template 400 of the buttress silo comprises the following steps:
s1) manufacturing the inner mold 310 for the sidewall of the buttress, including:
s11) manufacturing a side wall inner template 311 according to the design thickness β of the buttress column 200, wherein the height of the side wall inner template 311 is the design height of the buttress column 200;
s12) manufacturing an anchor hole inner die 312 according to the design appearance and size of the anchor hole 210, and forming an anchoring hole 313 at the bottom of the anchor hole inner die 312 according to the design;
s13) installing and fixing an anchor hole inner die 312 on the side wall inner die plate 311 according to the design position of the anchor hole 210 to form a buttress column side wall inner die 310;
s2) manufacturing the silo wall outer formwork 320 and the buttress column outer formwork 330, wherein:
the silo wall external template 320 is manufactured according to the design requirements of the external wall of the silo main body;
the buttress column outer formwork 330 comprises a bottom plate 331 and side plates 332 on two sides of the bottom plate 331, and the side plates 332 are connected with the silo wall outer formwork 320;
the inside width of the bottom plate 331 is the buttress design width α + the thickness of the two side wall inner forms 311;
the inside width of the side panel 332 is equal to the buttress design thickness β, and
the connecting part of the side plate 332 and the silo wall outer template 320 is also provided with a side sliding plate 333, the side plate 332 and the bottom plate 331 form a side sliding groove of the buttress column outer template 330, and the side sliding groove is used for maintaining and fixing the sidewall inner template 310 and sliding the buttress column outer template along the sidewall inner template 310;
s3) manufacturing an inner template 400 of the buttress silo;
the buttress cylinder silo inner template 400 is manufactured according to the designed inner wall of the buttress cylinder silo;
s4) seating of the buttress cylinder silo external formwork 300 and the buttress cylinder silo internal formwork 400, including:
s41) placing the buttress side wall internal molds 310 on both sides of the side wall of the buttress built-in steel bar 201, and arranging corrugated pipes (not shown in the figure) in the silo body wall built-in steel bar 101 and the buttress built-in steel bar 201 through the anchoring holes 313;
s42) arranging a silo wall outer template 320 and a buttress column outer template 330 on the outer sides of the silo wall built-in steel bars 101 and the buttress column built-in steel bars 201 of the silo main body, and clamping the buttress column side wall inner mold 310 in the side sliding groove, namely completing the positioning of the buttress column silo outer template 300;
s43) arranging the buttress column silo inner formwork 400 on the inner side of the steel bar 101 arranged in the silo wall of the silo body, namely completing the positioning of the buttress column silo inner formwork 400.
From the above description, it can be seen that:
firstly, the slipform construction method of the buttress column silo provided by the embodiment creatively applies the buttress column silo outer template comprising the buttress column side wall inner template, the silo wall outer template and the buttress column outer template in the common silo slipform construction, and completes the slipform construction of the buttress column silo by matching the buttress column silo outer template with the buttress column silo inner template, thereby solving the problems of the prior art that when the silo with the prestressed buttress column is constructed by adopting the slipform construction, the concrete of the buttress column is very easy to crack, and the occurrence of the slip stopping event is caused by the irregularity of the buttress column side wall, thereby not only ensuring the quality of the slipform construction of the buttress column silo, but also promoting the construction of the prestress and shortening the construction period of the whole buttress column silo;
secondly, in the sliding-form construction method of the buttress column silo provided by the embodiment, because the buttress column side wall internal mold is arranged on the irregular side wall of the buttress column, the most troublesome problem of the irregular side wall of the buttress column to be faced by the common silo wall external template is solved, the working condition that the boundary of a building is an unchangeable regular geometric section is met by the common sliding-form construction, and the buttress column silo external template in the embodiment of the invention can slide and lift on the smooth surface of the sidewall internal template with the unchangeable geometric section of the buttress column side wall internal mold, so that the construction quality is improved, the continuity of the sliding-form construction is ensured, the occurrence of a sliding stopping event is eliminated, and the construction progress is improved.
The slipform construction method of the buttress column silo provided by the embodiment is a slipform construction method of a generalized silo with a buttress column, and can be suitable for slipform construction of a circular silo with the buttress column.
In this embodiment, as an optional technical solution:
the side wall inner formwork 311 can be made of wood plates, so that the cost is saved and the construction progress is accelerated;
the side slide plates 333 may be made of angle steel;
the angle steel can be No. 50 angle steel.
In summary, it can be seen that:
the invention provides a sliding-form construction method of a buttress column silo, which creatively applies a buttress column silo outer template consisting of a buttress column side wall inner template, a silo wall outer template and a buttress column outer template, solves the problems of quality caused by easy cracking of buttress column concrete when a silo with a prestressed buttress column is constructed by adopting a sliding form and the occurrence of a slip stopping event caused by the irregularity of the side wall of the buttress column in the prior art, can ensure the quality of the sliding-form construction of the buttress column silo, can promote the construction of prestress, shortens the construction period of the whole buttress column silo, has convenient and simple template manufacture, low cost but excellent effect, strong practicability and good expansibility, provides a referential example and pioneering for the sliding-form construction of buildings with irregular geometric sections, therefore, the utility model has great popularization and application value.
During the description of the above description:
the description of the terms "this embodiment," "an embodiment of the invention," "as shown at … …," "further," "as an alternative," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention;
in this specification, the schematic representations of the terms used above are not necessarily for the same embodiment or example, and the particular features, structures, materials, or characteristics described, etc., may be combined or brought together in any suitable manner in any one or more embodiments or examples;
furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made on the technical solutions described in the foregoing embodiments, or some or all of the technical features of the embodiments can be equivalently replaced, and the corresponding technical solutions do not depart from the technical solutions of the embodiments of the present invention.
Claims (5)
1. A slip-form construction method of a buttress column silo;
the buttress column silo is of a reinforced concrete structure and comprises a silo main body silo wall and a plurality of prestressed buttress columns distributed on the outer peripheral wall of the silo main body silo wall, the buttress column silo has cross sections with the same shape and size from a base part to the top of the silo main body, the cross section of the buttress column is trapezoid or rectangular, a plurality of prestressed anchor holes are further formed in two side walls of the buttress column represented by a waist line of the trapezoid or a side edge of the rectangle, and an anchor, a corrugated pipe and a prestressed anchor cable are arranged in each anchor hole;
the slip form construction method comprises the following steps:
the method comprises the following steps of binding built-in steel bars of the silo main body silo wall and the buttress column, fixing and positioning the slipform construction enclosure and the lifting frame, manufacturing and positioning the outer formwork of the buttress column silo and the inner formwork of the buttress column silo, installing and positioning an internal and external operation platform for slipform construction, installing and positioning the outer formwork of the buttress column silo and the inner formwork of the buttress column silo, pouring concrete of the buttress column silo, lifting the outer formwork of the buttress column silo and the inner formwork of the buttress column silo, and dismantling the outer formwork of the buttress column silo and the inner formwork of the buttress column silo, and is characterized in that:
the buttress cylinder silo outer template comprises a buttress cylinder sidewall inner mold, a silo wall outer template and a buttress cylinder outer template;
the manufacturing and in-place process of the external template of the buttress cylinder silo and the internal template of the buttress cylinder silo comprises the following steps:
s1) manufacturing the inner mold of the side wall of the buttress, comprising:
s11) manufacturing a side wall inner template according to the design thickness of the buttress, wherein the height of the side wall inner template is the design height of the buttress;
s12) manufacturing an anchor hole internal mold according to the design appearance and size of the anchor hole, and forming an anchoring hole at the bottom of the anchor hole internal mold according to the design;
s13) installing and fixing the anchor hole internal mold on the side wall internal mold plate according to the designed position of the anchor hole to form the buttress column side wall internal mold;
s2) manufacturing the silo wall outer formwork and the buttress column outer formwork, wherein:
the silo wall external template is manufactured according to the design of the silo main body external wall;
the buttress column outer formwork comprises a bottom plate and side plates on two sides of the bottom plate, and the side plates are connected with the silo wall outer formwork;
the width of the inner side of the bottom plate is equal to the design width of the buttress plus the thickness of the inner die plates on the side walls on two sides;
the width of the inner side of the side plate is equal to the design thickness of the buttress column; and is
The side sliding plate, the side plate and the bottom plate form a side sliding groove of the buttress outer template, and the side sliding groove is used for maintaining and fixing the sidewall inner template and is used for sliding and lifting the buttress outer template along the sidewall inner template;
s3) manufacturing an inner template of the buttress column silo;
the inner template of the buttress column silo is manufactured according to the designed inner wall of the buttress column silo;
s4) positioning the external template of the buttress column silo and the internal template of the buttress column silo, including:
s41) arranging the inner molds of the side walls of the buttress columns on two sides of the side walls of the built-in steel bars of the buttress columns, and arranging the corrugated pipes in the silo walls of the silo main body and the built-in steel bars of the buttress columns through the anchoring holes;
s42) arranging the silo wall outer template and the buttress column outer template on the outer sides of the steel bars arranged in the silo wall of the silo main body and the steel bars arranged in the buttress columns, and clamping the buttress column side wall inner mold in the side chute to complete the positioning of the buttress column silo outer template;
s43) arranging the buttress column silo inner formwork on the inner side of the steel bar arranged in the silo wall of the silo main body, namely completing the positioning of the buttress column silo inner formwork.
2. The method of slipform construction of a buttress silo of claim 1, wherein: the buttress column silo is a buttress column circular silo.
3. The method of slipform construction of a buttress silo of claim 1, wherein: the side wall inner template is a wooden plate.
4. The method of slipform construction of a buttress silo of claim 1, wherein: the side sliding plate is made of angle steel.
5. The method of slipform construction of a buttress silo of claim 4, wherein: the angle steel is No. 50 angle steel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010350188.8A CN111424968A (en) | 2020-04-28 | 2020-04-28 | Slip-form construction method for buttress column silo |
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| CN202010350188.8A CN111424968A (en) | 2020-04-28 | 2020-04-28 | Slip-form construction method for buttress column silo |
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| CN111424968A true CN111424968A (en) | 2020-07-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113323379A (en) * | 2021-05-28 | 2021-08-31 | 广西建工集团冶金建设有限公司 | Steel strand head plugging hole reservation device for slip form construction and construction method |
| CN114517574A (en) * | 2022-03-01 | 2022-05-20 | 张水娜 | Scenic spot archaize enclosure rammer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113323379A (en) * | 2021-05-28 | 2021-08-31 | 广西建工集团冶金建设有限公司 | Steel strand head plugging hole reservation device for slip form construction and construction method |
| CN114517574A (en) * | 2022-03-01 | 2022-05-20 | 张水娜 | Scenic spot archaize enclosure rammer |
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Application publication date: 20200717 |