CN111502250A - Slip form construction system for concrete structure body under high-temperature and large-temperature-difference environment of sun and shade surface - Google Patents
Slip form construction system for concrete structure body under high-temperature and large-temperature-difference environment of sun and shade surface Download PDFInfo
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- CN111502250A CN111502250A CN202010391572.2A CN202010391572A CN111502250A CN 111502250 A CN111502250 A CN 111502250A CN 202010391572 A CN202010391572 A CN 202010391572A CN 111502250 A CN111502250 A CN 111502250A
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
- E04G17/002—Workplatforms, railings; Arrangements for pouring concrete, attached to the form
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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
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/28—Safety or protective measures preventing damage to building parts or finishing work during construction against unfavourable weather influence
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/02—Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes
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Abstract
The operating platform is divided into an upper platform, a middle platform and a lower platform, the operating platform is provided with an enclosure sun-shading, temperature-reducing and heat-insulating system comprising an upper enclosure, a lower enclosure, a dense mesh net, an ice water tank, a spray pipe and heat-insulating geotextile, the dense mesh net is arranged on the upper enclosure and the lower enclosure, the ice water tank is arranged on the upper platform, the spray pipe is communicated with the ice water tank, the spray end is arranged at the top of the template, the heat-insulating geotextile covers the outer side of the template, and when the temperature sensed by a temperature sensing device arranged on the heat-insulating geotextile exceeds the specified temperature, the ice water tank emits ice water to the heat-insulating geotextile through the spray pipe until the temperature reaches the specified requirement. The invention avoids the collapse or the crack caused by the unsynchronized concrete strength increase of the negative surface and the positive surface of the concrete structure body due to strong sunshine while avoiding the concrete crack caused by high temperature, and realizes the normal construction under the environment with high temperature and large temperature difference of the negative surface and the positive surface.
Description
Technical Field
The invention relates to a slip-form construction system of a concrete structure body, in particular to a slip-form construction system of a concrete structure body under the environment of high temperature and large temperature difference of a sun surface and a shade surface, and belongs to the technical field of building construction methods.
Background
In the construction of concrete structures, slip-form construction is the most common method.
The slip-form construction has high mechanization degree, high construction speed, small occupied area on site, guaranteed safe operation, strong integrity of the constructed engineering structure and good earthquake resistance, and is a construction method which is environment-friendly and has more remarkable economic and social comprehensive benefits, so the slip-form construction of the concrete structure body is developed rapidly and widely applied.
A slip-form construction system for a concrete structure generally includes: a lifting system, a mold system, an operating platform system, an auxiliary facility system and the like.
Accordingly, slip-form construction of concrete structures typically involves: binding built-in steel bars of a concrete structure body, fixing a slip form construction surrounding ring and a lifting frame in place, manufacturing and placing internal and external templates of the concrete structure body, installing an internal and external operation platform of the slip form construction in place, installing a jacking and control device of the internal and external templates of the concrete structure body in place, pouring concrete of the concrete structure body, jacking the internal and external templates, removing the internal and external templates of the concrete structure body and the like.
However, the concrete structure constructed by slip-forming is often large in volume, and during the curing and reinforcing process of the concrete, not only can the concrete generate heat and expand, but also the concrete structure can be influenced by the environment, for example, when slip-forming construction of the concrete structure is carried out in hot seasons or hot areas, particularly in desert areas with high temperature, little rain and strong illumination, a common slip-forming construction method can be seriously tested, in those areas, the temperature is up to more than 50 ℃ in summer, the temperature difference between day and night and the temperature difference between the shade and the sun can reach dozens of degrees, and when slip-forming construction is carried out at such an environmental temperature, quality accidents such as cracking of the concrete and the like are easily caused by the high temperature and the temperature difference.
In addition, when carrying out concrete structure slip form construction in the desert area that the illumination is strong, also can cause the concrete to increase at the positive face intensity too fast because of the huge difference in temperature of the positive face of sun illumination and negative face, and increase slowly at the negative face concrete intensity to lead to the concrete intensity because of increasing asynchronous concrete lifting process in-process collapse or the fracture, still can lead to the slip form construction to go on when serious.
In the prior art, there are some special and valuable methods for slip-form construction in high-temperature and large-temperature-difference environments, such as:
the invention patent (application number: CN201010279909.7) discloses a concrete silo sliding-die temperature control method under high-temperature environment, which comprises the following steps: a. designing the mixing proportion of concrete, and setting the slump of the concrete; b. selecting a concrete raw material; c. the temperature of concrete in mixing and transportation is reduced; d. controlling the supply rhythm of the concrete, and setting concrete supply in place within minutes according to the demand of the concrete for one-time slide lifting;
the invention discloses a slip form construction method in high temperature and large temperature difference environment (application number: CN 201210539585.5). by preparing concrete according to temperature of air in sections, the using amount of additive and the using amount of ice blocks are adjusted in sections; controlling the slip-form casting speed of the concrete in sections according to the air temperature, wherein the moderate degree of the strength of the demoulded concrete is taken as the standard; intermittently lifting the template to perform slip-form construction according to the temperature difference change;
the invention discloses a construction method of a slip form under a high-temperature environment (application number: CN201210119464.5), which comprises the following steps: selecting a proper additive; according to the characteristic of large day-night temperature difference, the temperature of each day is segmented in time, and then the concrete mixing proportion is set in segments; adding ice blocks during concrete stirring, stirring by a concrete tank truck and the like, and reducing the temperature of concrete entering a mold; when sliding the mould, adopting an intermittent lifting process; covering a cotton felt on the surface of the poured concrete and adopting annular spraying maintenance measures;
the invention discloses a cooling method of a silo sliding formwork in a high-temperature environment (application number: CN201810441300.1), which comprises the following steps: a. b, setting a slipform platform ice water system, and setting a template heat-insulating layer, wherein: when the template cooling system works, ice water is respectively sprayed on the template for cooling by the inner and outer hanging frames of the sliding formwork, and the white absorbent cotton cloth wrapped by the steel template absorbs water, so that the steel template is integrally cooled, the concrete in the template is cooled, the excessive increase of the concrete temperature under the high-temperature condition is effectively avoided, the surface temperature of the concrete is effectively reduced, the quality of the concrete for sliding formwork construction of the silo under the extremely high-temperature climate is ensured, the influence of the extremely high-temperature weather is reduced, and the continuity of the silo sliding formwork pouring is ensured;
the invention discloses a cooling device and a cooling and moisturizing system for a cylinder wall slide-lifting template (application number CN201810502152.X), wherein the cooling device comprises a water storage device, an ice water storage device and a spraying device, water in the water storage device is conveyed to the ice water storage device, then water in an ice water storage tank is sprayed to the slide-lifting template through the spraying device, and the slide-lifting template is cooled; the temperature-reducing and moisture-preserving system comprises a sliding template system, a heat-insulating and moisture-preserving system and a cylinder wall sliding template cooling device; the system reduces the temperature difference between the surface of the template and the interior of the concrete through ice water spraying, so that the temperature inside the concrete is kept consistent with the surface temperature, the internal and external setting time of the concrete is kept consistent, and the system plays a key role in accurately controlling the lifting time of the template and controlling the cracking caused by the non-uniform internal and external setting time of the concrete.
However, although the above prior art provides some special methods for slip-form construction in a high-temperature and large-temperature-difference environment and achieves better effects, how to overcome the problem that the strength of the male and female sides of the concrete is increased asynchronously to cause concrete collapse or crack in the concrete lifting process due to the serious temperature difference between the male and female sides of the concrete structure caused by strong sunlight is not provided, and no clear solution or direct method hint is provided.
Disclosure of Invention
In order to overcome the defects of the prior art, the embodiment of the invention provides a slip-form construction system for a concrete structure body under the environment of high temperature and large temperature difference of a sun surface, and aims to:
when the slip-form construction of the concrete structure body is carried out under the environment with high temperature and large temperature difference of the negative and positive surfaces, the quality accident caused by concrete cracking due to high temperature is avoided, the problem that the concrete structure body is not synchronous in collapse or crack caused by the fact that the concrete strength of the negative and positive surfaces of the concrete structure body is increased due to strong sunshine is avoided, the normal slip-form construction under the environment with high temperature and large temperature difference of the negative and positive surfaces is realized, and the construction period and the quality of the concrete structure body are ensured.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:
the utility model provides a concrete structure slip form construction system under high temperature and the big difference in temperature environment of negative and positive face, includes lift system, mould system, operation platform system and auxiliary facilities system, wherein:
the templates in the mould system are arranged on two sides of the built-in steel bar of the concrete structure body; the lifting system comprises a lifting frame, and the lifting frame is arranged on the template and used for sliding the template; the operation platform system is arranged on the lifting open-type frame and used for controlling the operation of the slip form construction system of the concrete structure body and the maintenance and post-treatment of the concrete structure body; the method is characterized in that:
the operating platform of the operating platform system comprises an upper layer platform, a middle layer platform and a lower layer platform, and a surrounding, sun-shading, cooling and heat-insulating system is arranged on the operating platform;
the upper-layer platform is arranged at the top of the lifting frame and the table top of the upper-layer platform is higher than the top of the template, the middle-layer platform is arranged below the upper-layer platform, and the lower-layer platform is suspended below the middle-layer platform;
the enclosure sun-shading, cooling and heat-insulating system comprises an upper enclosure, a lower enclosure, a dense mesh net, an ice water tank, a spray pipe and heat-insulating geotextile;
the upper fence comprises upper vertical rods and upper cross rods, the upper vertical rods are erected on the outer sides of the upper-layer platform and the middle-layer platform, and the upper cross rods are connected between the upper vertical rods;
the lower fence comprises lower vertical rods and lower cross rods, the lower vertical rods are erected on two sides of the lower-layer platform parallel to the concrete structural body, and the lower cross rods are connected between the lower vertical rods;
the dense mesh net is arranged on the upper fence and the lower fence, the ice water tank is arranged on the upper layer platform, the spray pipe is arranged on the lifting open-letter frame, one end of the spray pipe is communicated with the ice water tank, and the spray end of the spray pipe is arranged at the top of the template;
the heat-insulating geotextile covers the outer side of the template, a temperature sensing device is arranged on the heat-insulating geotextile, and when the temperature sensed by the temperature sensing device exceeds the specified temperature, a valve of the ice water tank is opened to discharge ice water and the ice water is poured onto the heat-insulating geotextile through the spray pipe until the temperature on the heat-insulating geotextile reaches the specified requirement.
Furthermore, the heat-insulating geotextile is cut according to the size of the rib separating area on the back side of the template, and then four layers of the cut heat-insulating geotextile are overlapped and placed in the rib separating area on the back side of the template and are fixed by adopting battens.
Further, the outer surface of the ice water tank is wrapped by mineral wool for heat insulation, and the mineral wool is fixedly shielded by a wood template.
Further, the prescribed temperature is 25 ℃.
Compared with the prior art, the embodiment of the invention has the beneficial effects and obvious progress that:
1) the slip-form construction system for the concrete structure body in the environment with high temperature and large temperature difference between the sun and the shadow comprises a lifting system, a mould system, an operating platform system and an auxiliary facility system, wherein: the operation platform system comprises an upper platform, a middle platform and a lower platform, wherein the operation platform is provided with an enclosure sun-shading, temperature-reducing and heat-insulating system, the enclosure sun-shading, temperature-reducing and heat-insulating system comprises an upper fence, a lower fence, a dense mesh net, an ice water tank, a spray pipe and heat-insulating geotextile, the dense mesh net is arranged on the upper fence and the lower fence, the ice water tank is arranged on the upper platform, the spray pipe is arranged on a lifting open-type frame, one end of the spray pipe is communicated with the ice water tank, the spray end of the spray pipe is arranged at the top of a template, the heat-insulating geotextile covers the outer side of the template, the heat-insulating geotextile is provided with a temperature sensing device, when the temperature sensed by the temperature sensing device exceeds a specified temperature, a valve of the ice water tank is opened to discharge ice water onto the heat-insulating geotextile through the spray pipe until the temperature on the heat-insulating geotextile reaches the specified requirement, so, the method has the advantages that quality accidents caused by concrete cracking due to high temperature are avoided, collapse or cracking caused by unsynchronized concrete strength increase of the negative surface and the positive surface of the concrete structure due to strong sunshine on the concrete structure is avoided, normal slip form construction under the environment with high temperature and large temperature difference of the negative and positive surfaces is realized, and the purposes of construction period and concrete structure quality are ensured;
2) according to the slip-form construction system for the concrete structure body under the environment with the high temperature and the large temperature difference between the negative and positive surfaces, provided by the embodiment of the invention, the operation platform in the operation platform system is set to be the upper-layer platform, the middle-layer platform and the lower-layer platform, and when each layer of platform is subjected to functional partition, people flow and logistics are inserted in order, and the construction is carried out in order, the dense mesh net is arranged on the fence of each layer of platform, so that the direct sunlight of a sun to a template and newly poured concrete is effectively shielded, the problem of collapse or cracking caused by the fact that the concrete strength of the negative and positive surfaces of the concrete structure body is increased asynchronously is avoided, the normal slip-form construction under the severe climate environment with the large temperature difference between the high temperature and the negative and positive surfaces is realized, and the;
3) the slip-form construction system for the concrete structure body under the high-temperature and large-temperature-difference environment of the sun and the shade surface, provided by the embodiment of the invention, has the advantages of novel and unique thought for overcoming the difficulty caused by the high-temperature and large-temperature-difference environment of the sun and the shade surface in slip-form construction, convenience and simplicity in measure and use, low cost, excellent effect, strong practicability, good operability and expansibility, capability of providing a referential example and operable inspiration for slip-form construction under the high-temperature and strong-illumination environment, and a creative method for slip-form construction, so that the slip-form construction system 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 working diagram of a slip-form construction system of a concrete structure under a high-temperature environment with a large temperature difference between a sun surface and a shadow surface according to an embodiment of the present invention;
fig. 2 is a schematic partial structure diagram of a slip-form construction system of a concrete structure under a high-temperature environment with a large temperature difference between a sun surface and a cathode surface according to an embodiment of the present invention.
In the figure:
110-concrete structure foundation, 120-concrete structure;
200-a concrete structure slip-form construction system;
210-template, 220-lifting open frame;
231-upper stage, 232-middle stage, 233-lower stage;
241-upper fence, 2411-upper upright rod, 2412-upper cross rod, 242-lower fence, 2421-lower upright rod, 2422-lower cross rod, 243-dense mesh net, 244-ice water tank, 245-spray pipe and 246-heat insulation geotextile.
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
Fig. 1 is a schematic working diagram of a slip-form construction system of a concrete structure under a high-temperature and large-temperature-difference environment of a sun and a sun surface, and fig. 2 is a schematic partial structural diagram of the slip-form construction system of the concrete structure under the high-temperature and large-temperature-difference environment of the sun and the sun surface, according to an embodiment of the present invention, as shown in the following:
the utility model provides a concrete structure slipform construction system 200 under high temperature and the big difference in temperature environment of negative and positive face, includes lift system, mould system, operation platform system and auxiliary facilities system, wherein:
the templates 210 in the mould system are arranged on two sides of the built-in steel bars of the concrete structure body 120, the lifting system comprises a lifting open-letter frame 220, the lifting open-letter frame 220 is arranged on the templates 210 and used for sliding lifting of the templates 210, and the operating platform system is arranged on the lifting open-letter frame 220 and used for controlling the operation of the concrete structure body slip form construction system 200 and the maintenance and post-treatment of the concrete structure body 120;
the operation platform system comprises an upper platform 231, a middle platform 232 and a lower platform 233, and a surrounding, sun-shading, cooling and heat-insulating system is arranged on the operation platform;
the upper platform 231 is arranged at the top of the lifting frame 220, the table top of the upper platform 231 is higher than the top of the template 210, the middle platform 232 is arranged below the upper platform 231, and the lower platform 233 is suspended below the middle platform 231;
the enclosure sun-shading, cooling and heat-insulating system comprises an upper fence 241, a lower fence 242, a dense mesh net 243, an ice water tank 244, a spray pipe 245 and heat-insulating geotextile 246;
the upper fence 241 comprises an upper upright 2411 and an upper cross bar 2412, the upper upright 2411 is erected outside the upper platform 231 and the middle platform 232, and the upper cross bar 2412 is connected between the upper uprights 2411;
the lower fence 242 includes lower vertical rods 2421 and lower cross bars 2422, the lower vertical rods 2421 are erected on two sides of the lower platform 233 parallel to the concrete structure 120, and the lower cross bars 2422 are connected between the lower vertical rods 2421;
the dense mesh net 243 is arranged on the upper fence 241 and the lower fence 242, the ice water tank 244 is arranged on the upper-layer platform 231, the spray pipe 245 is arranged on the lifting open-type frame 220, one end of the spray pipe 245 is communicated with the ice water tank 244, and the spray end of the spray pipe 245 is arranged at the top of the template 210;
the heat-insulating geotextile 246 covers the outer side of the template 210, and a temperature sensing device (not shown in the figure) is arranged on the heat-insulating geotextile 246, when the temperature sensed by the temperature sensing device (not shown in the figure) exceeds the specified temperature, a valve of the ice water tank 244 is opened to discharge ice water and the ice water is poured onto the heat-insulating geotextile 246 through the spraying pipe 245 until the temperature on the heat-insulating geotextile 246 reaches the specified requirement.
Further, in this embodiment, the heat-insulating geotextile 246 is cut according to the size of the rib partition area on the back surface of the formwork 210, and then four layers of the cut heat-insulating geotextile 246 are overlapped and placed in the rib partition area on the back surface of the formwork 210 and fixed by using the battens.
Further, in this embodiment, the outer surface of the ice water tank 244 is wrapped with mineral wool for heat insulation, and the mineral wool is covered with a molded wood plate for fixing the shielding.
Further, in this example, the predetermined temperature was 25 ℃.
From the above description, it can be seen that:
first, the slip-form construction system for a concrete structure under the environment of high temperature and large temperature difference between the sun and the shadow surface provided by this embodiment includes a hoisting system, a mold system, an operation platform system and an auxiliary facility system, wherein: the operation platform system comprises an upper platform, a middle platform and a lower platform, wherein the operation platform is provided with an enclosure sun-shading, temperature-reducing and heat-insulating system, the enclosure sun-shading, temperature-reducing and heat-insulating system comprises an upper fence, a lower fence, a dense mesh net, an ice water tank, a spray pipe and heat-insulating geotextile, the dense mesh net is arranged on the upper fence and the lower fence, the ice water tank is arranged on the upper platform, the spray pipe is arranged on a lifting open-type frame, one end of the spray pipe is communicated with the ice water tank, the spray end of the spray pipe is arranged at the top of a template, the heat-insulating geotextile covers the outer side of the template, the heat-insulating geotextile is provided with a temperature sensing device, when the temperature sensed by the temperature sensing device exceeds a specified temperature, a valve of the ice water tank is opened to discharge ice water onto the heat-insulating geotextile through the spray pipe until the temperature on the heat-insulating geotextile reaches the specified requirement, so, the method has the advantages that quality accidents caused by concrete cracking due to high temperature are avoided, the problem that the concrete structure collapses or cracks due to the fact that the concrete strength of the negative surface and the positive surface of the concrete structure is increased asynchronously due to strong sunshine is avoided, normal slip form construction under the environment with high temperature and large temperature difference of the negative and positive surfaces is achieved, and the purposes of construction period and concrete structure quality are guaranteed;
secondly, in the slip-form construction system for the concrete structure under the environment with the high temperature and the large temperature difference between the negative and positive surfaces provided by the embodiment, the operation platform in the operation platform system is set to be the upper platform, the middle platform and the lower platform, and when each platform is subjected to functional partition, people flow and logistics are inserted in order, and the construction is carried out in order, the dense mesh net is arranged on the fence of each platform, so that the direct sunlight of the sun to the formwork and the newly poured concrete is effectively shielded, the problem of collapse or crack caused by the fact that the concrete strength of the negative and positive surfaces of the concrete structure is increased asynchronously is avoided, the normal slip-form construction under the environment with the high temperature and the large temperature difference between the negative and positive surfaces and the severe climate is realized, and the difficult problem in slip-form construction is effectively solved;
thirdly, the slip-form construction system for the concrete structure body under the environment with the high temperature and the large temperature difference between the negative and positive surfaces, provided by the embodiment, overcomes the defects that the slip-form construction is difficult due to the environment with the high temperature and the large temperature difference between the negative and positive surfaces, is novel and unique in concept, convenient and simple to use in measures, low in cost but excellent in effect, strong in practicability, good in operability and expansibility, provides a referable example and an operable inspiration for the slip-form construction under the environment with the high temperature and strong illumination, and provides another creative method for the slip-form construction, so that the slip-form construction system has great popularization and application values.
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 (4)
1. The utility model provides a concrete structure slip form construction system under high temperature and the big difference in temperature environment of negative and positive face, includes lift system, mould system, operation platform system and auxiliary facilities system, wherein:
the templates in the mould system are arranged on two sides of the built-in steel bar of the concrete structure body; the lifting system comprises a lifting frame, and the lifting frame is arranged on the template and used for sliding the template; the operation platform system is arranged on the lifting open-type frame and used for controlling the operation of the slip form construction system of the concrete structure body and the maintenance and post-treatment of the concrete structure body; the method is characterized in that:
the operating platform of the operating platform system comprises an upper layer platform, a middle layer platform and a lower layer platform, and a surrounding, sun-shading, cooling and heat-insulating system is arranged on the operating platform;
the upper-layer platform is arranged at the top of the lifting frame and the table top of the upper-layer platform is higher than the top of the template, the middle-layer platform is arranged below the upper-layer platform, and the lower-layer platform is suspended below the middle-layer platform;
the enclosure sun-shading, cooling and heat-insulating system comprises an upper enclosure, a lower enclosure, a dense mesh net, an ice water tank, a spray pipe and heat-insulating geotextile;
the upper fence comprises upper vertical rods and upper cross rods, the upper vertical rods are erected on the outer sides of the upper-layer platform and the middle-layer platform, and the upper cross rods are connected between the upper vertical rods;
the lower fence comprises lower vertical rods and lower cross rods, the lower vertical rods are erected on two sides of the lower-layer platform parallel to the concrete structural body, and the lower cross rods are connected between the lower vertical rods;
the dense mesh net is arranged on the upper fence and the lower fence, the ice water tank is arranged on the upper layer platform, the spray pipe is arranged on the lifting open-letter frame, one end of the spray pipe is communicated with the ice water tank, and the spray end of the spray pipe is arranged at the top of the template;
the heat-insulating geotextile covers the outer side of the template, a temperature sensing device is arranged on the heat-insulating geotextile, and when the temperature sensed by the temperature sensing device exceeds the specified temperature, a valve of the ice water tank is opened to discharge ice water and the ice water is poured onto the heat-insulating geotextile through the spray pipe until the temperature on the heat-insulating geotextile reaches the specified requirement.
2. The slip-form construction system for concrete structures under high temperature and large temperature difference environment of sun and shade surfaces as claimed in claim 1, wherein: and cutting the heat-insulating geotextile according to the size of the rib partition area on the back side of the template, overlapping four layers of the cut heat-insulating geotextile in the rib partition area on the back side of the template, and fixing by adopting battens.
3. The slip-form construction system for concrete structures under high temperature and large temperature difference environment of sun and shade surfaces as claimed in claim 1, wherein: the outer surface of the ice water tank is wrapped by mineral wool for heat insulation, and the mineral wool is fixedly shielded by a wood template.
4. The slip-form construction system for concrete structures under high temperature and large temperature difference environment of sun and shade surfaces as claimed in claim 1, wherein: the prescribed temperature is 25 ℃.
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| CN202010391572.2A CN111502250A (en) | 2020-05-11 | 2020-05-11 | Slip form construction system for concrete structure body under high-temperature and large-temperature-difference environment of sun and shade surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417481A (en) * | 2021-06-11 | 2021-09-21 | 中建一局集团第三建筑有限公司 | Automatic maintenance device for concrete storage bin wall and maintenance construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417481A (en) * | 2021-06-11 | 2021-09-21 | 中建一局集团第三建筑有限公司 | Automatic maintenance device for concrete storage bin wall and maintenance construction method |
| CN113417481B (en) * | 2021-06-11 | 2023-03-10 | 中建一局集团第三建筑有限公司 | Automatic maintenance device for concrete storage bin wall and maintenance construction method |
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