CN214737454U - High mound maintenance device that is under construction in winter - Google Patents

Abstract

The utility model provides a high mound curing means that is under construction winter for solve the method singleness of high mound construction maintenance winter, application scope is narrow, with high costs, the poor and low technical problem of security of heat preservation maintenance effect. The utility model discloses a pier bottom cushion cap, set up concrete pre-cast section, the hydraulic pressure creeping formwork mechanism of setting on concrete pre-cast section and the creeping formwork operating device of setting on hydraulic pressure creeping formwork mechanism on the pier bottom cushion cap are provided with double-deck maintenance template on the hydraulic pressure creeping formwork mechanism. The utility model discloses a mode of improving concrete placement maintenance template carries out high mound maintenance of being under construction winter, sets up double-deck maintenance template of pouring, has improved the heating thermal insulation performance when concrete high mound is pour and is maintained, has improved the efficiency of construction, has widened application scope, has reduced construction cost and has improved the security performance.

Description

High mound maintenance device that is under construction in winter

Technical Field

The utility model relates to a technical field of building bridge especially relates to a high mound maintenance device that is under construction in winter.

Background

In the construction of bridge buildings, the bridge mainly comprises pier bodies and box girders, the pier bodies of the bridge are higher and higher along with the wider application range of the bridge buildings, but the method is single and narrow in application range for the winter concrete construction and maintenance of the high piers in severe cold regions at home and abroad at present, and for pier columns with the height of less than 40m, the winter maintenance is usually carried out on the concrete by adopting a method of building a steam greenhouse by using a boiler, so that the cost of manpower and material resources is high, the arrangement of maintenance pipelines is complicated, the operability is not strong, and the steam production by using open fire has higher safety risk; most of pier studs with the height of more than 40m are not constructed in the winter rest period, so that the construction period is increased, the construction efficiency is reduced, and a large amount of resources are wasted.

In view of the above technical problems, some researchers have also proposed some solutions to solve the problems, but some new problems have been generated or only some problems have been solved, for example, the construction and maintenance device for high and cold areas disclosed in the chinese utility model patent "(No. CN 211006354U, published as 2020.07.14)" does not solve the problem of thermal insulation and maintenance after the concrete high pier is poured in winter well, and meanwhile, due to the simple structure, the problems of rapid temperature reduction and serious heat dissipation during the concrete pouring are also generated.

SUMMERY OF THE UTILITY MODEL

The utility model provides a method to high mound construction maintenance in winter is single, application scope is narrow, with high costs, the poor and low technical problem of security of heat preservation maintenance effect, the utility model provides a high mound maintenance device that is under construction in winter carries out high mound construction maintenance in winter through the mode that improves concrete placement maintenance template, sets up double-deck pouring maintenance template, has improved the heating thermal insulation performance when concrete high mound is pour and is maintained, has improved the efficiency of construction, has widened application scope, has reduced construction cost and has improved the security performance.

In order to achieve the above object, the technical solution of the present invention is achieved as such.

The utility model provides a high mound curing means that is under construction in winter, includes pier bottom cushion cap, sets up concrete precast section, the hydraulic pressure creeping formwork mechanism of setting on concrete precast section and the creeping formwork operating device of setting on hydraulic pressure creeping formwork mechanism on pier bottom cushion cap, is provided with double-deck maintenance template on the hydraulic pressure creeping formwork mechanism.

Further, the hydraulic climbing formwork mechanism comprises an upper frame body and a lower frame body; the creeping formwork operating mechanism comprises a main operating platform; lower support body setting is on concrete precast segment, goes up the support body and is located lower support body top and be connected with lower support body, and double-deck maintenance template sets up on last support body, and main operation platform sets up on lower support body, is provided with steam maintenance mechanism on the main operation platform, and steam maintenance mechanism is connected with double-deck maintenance template.

Further, steam maintenance mechanism includes steam generator and steam maintenance pipeline, and steam generator sets up on main operation platform, and steam maintenance pipeline sets up and is linked together with steam generator in double-deck maintenance template.

Further, the surface of the steam generator is wrapped with a first heat-insulating layer; the steam generator is provided with isolation protection frames around.

Further, the double-layer curing template comprises an inner-layer template and an outer-layer template; and a second heat-insulating layer is arranged on the outer side surface of the outer-layer template.

Furthermore, a supporting mechanism is arranged between the inner layer template and the outer layer template.

Furthermore, the supporting mechanism is a supporting rod, the supporting rod is transversely arranged between the inner-layer template and the outer-layer template, and a placing groove matched with the steam curing pipeline is formed in the supporting rod.

Furthermore, the creeping formwork operating mechanism also comprises a temperature detector, and the temperature detector is arranged between the inner formwork and the outer formwork.

The beneficial effects of the utility model.

1. The utility model discloses set up double-deck maintenance template and change the template into the bilayer by the individual layer, promoted heat preservation effect, structural strength and the maintenance effect of double-deck maintenance template, promote the construction quality when constructing in winter.

2. The utility model discloses set up steam generator and steam curing pipeline and carry out steam curing to the concrete of inlayer template, steam curing is effectual, water resource cyclic utilization, resources are saved.

3. The utility model discloses a steam generator compares that traditional boiler is bulky, the on-the-spot shortcoming that requires the condition high, has characteristics small, that the electric heat conversion is efficient, can directly place at creeping formwork operation platform, has reduced the heat loss among the steam transportation process promptly, has improved the thermal utilization ratio of steam greatly.

4. The utility model discloses set up protector and set up the heat preservation on steam generator around steam generator, utilization of resources efficiency and security performance when hoisting device uses.

5. The utility model discloses a double-deck maintenance template is overall structure, and it is very convenient to dismantle and install, and is efficient, and cyclic utilization nature is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the arrangement of the steam maintenance pipeline in the i-shaped timber.

Fig. 3 is a flowchart of the present invention.

In the drawing, 1-a pier bottom bearing platform, 2-a concrete pre-pouring section, 3-an upper frame body, 4-a lower frame body, 5-a main operation platform, 6-a steam generator, 7-a steam curing pipeline, 8-a first heat preservation layer, 9-an isolation protection frame, 10-an inner layer formwork, 11-an outer layer formwork, 12-a second heat preservation layer, 13-a support rod, 14-a placing groove, 15-a temperature detector, 16-a hydraulic oil cylinder, 17-a guide rail, 18-an embedded part hanging seat, 19-a steel bar bundling platform, 20-a formwork operation platform, 21-a lifting operation platform and 22-a repairing operation platform.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

As shown in figure 1, the high pier winter construction maintenance device comprises a pier bottom bearing platform 1, a concrete pre-pouring section 2 arranged on the pier bottom bearing platform, a hydraulic creeping formwork mechanism arranged on the concrete pre-pouring section 2 and a creeping formwork operating mechanism arranged on the hydraulic creeping formwork mechanism, wherein a double-layer maintenance template is arranged on the hydraulic creeping formwork mechanism.

Specifically, the hydraulic climbing formwork mechanism comprises an upper frame body 3, a lower frame body 4, a hydraulic oil cylinder 16, a guide rail 17 and an embedded part hanging seat 18; the climbing formwork operating mechanism comprises a main operating platform 5, a steel bar bundling platform 19, a formwork operating platform 20, a lifting operating platform 21 and a repairing operating platform 22; it is obvious to those skilled in the art that: the lower frame body 4 is arranged on the concrete precast section 2, and the upper frame body 3 is positioned above the lower frame body 4 and connected with the lower frame body 4; the guide rail 17 is arranged on the lower frame body 4 through a hydraulic oil cylinder 16, one end of the embedded part hanging seat 18 is movably connected with the lower frame body 4 or the guide rail 17, and the other end of the embedded part hanging seat 18 is fixedly connected on the concrete precast section 2; platform 19 is tied up to the reinforcing bar sets up on 3 tops of last support body, and template operation platform 20 sets up at 3 middle parts of last support body, and main operation platform 5 sets up 4 tops of support body under, and promotion operation platform 21 sets up 4 middle parts of support body under, and repair operation platform 22 sets up 4 bottoms of support body under. The above is the structure of the hydraulic climbing formwork, which is known to those skilled in the art, therefore, in fig. 1, the present embodiment simply illustrates the connection relationship among the structures, and only to better describe the positions of the improved and added structures in the following.

Further, as shown in fig. 1, a steam curing mechanism is arranged on the main operating platform 5, and the steam curing mechanism is connected with the double-layer curing template.

Specifically speaking, double-deck maintenance template sets up on last support body 3, and double-deck maintenance template includes inlayer template 10 and outer template 11, and outer 11 outside surfaces of template are provided with second heat preservation 12. Due to the arrangement of the double-layer template, the heat loss is slow when concrete is poured during the winter construction of the high pier, and the heat preservation effect is good; the second heat-insulating layer 12 is arranged on the outer side surface of the outer-layer template 11, so that the heat-insulating effect of the double-layer template is further improved.

It is worth explaining, in order to guarantee the structural strength and the heat preservation effect of inlayer template, inlayer template 10 uses the thick steel form of 0.5cm in this embodiment, in the utility model discloses other embodiments, also can use the board of other types as inlayer template 10, as long as satisfy the utility model discloses a requirement can.

It is worth explaining, in order to guarantee the structural strength and the heat preservation effect of outer template 11, in this embodiment, the thickness of outer template 11 is 1.5cm plank sheathing, in the other embodiments of the utility model, the outer template 11 of other thicknesses also can be used, as long as satisfy the utility model discloses a requirement can.

It should be noted that, in this embodiment, the second insulating layer 12 is a polyurethane foam layer with a thickness of 4cm, and in other embodiments of the present invention, polyurethane foam layers with other thicknesses or other insulating material layers can be used as the second insulating layer 12.

Further, as shown in fig. 1 and 2, a supporting mechanism is disposed between the outer formwork 11 and the inner formwork 10, and the supporting mechanism can effectively connect the inner formwork 10 and the outer formwork 11 and ensure the structural strength of the inner formwork 10 and the outer formwork 11.

It should be noted that, in this embodiment, the supporting mechanism is the supporting rod 13, the supporting rod 13 is an i-beam, and the supporting rod 13 is transversely disposed between the inner formwork 10 and the outer formwork 11 at an equal distance.

Further, steam maintenance mechanism includes steam generator 6 and steam maintenance pipeline 7, and steam generator 6 sets up on main operation platform 5, and steam maintenance pipeline 7 places and is linked together with steam generator 6 in the standing groove 14 of bracing piece 13. When high pier concrete is poured and maintained in winter construction, steam is generated by the steam generator 6 to transmit heat, open fire is not needed to provide heat, and the conversion efficiency of a heat generating mechanism such as a thermal heater is higher than that of an open fire heat generating mechanism, so that pollution can be prevented, and resources can be saved; steam curing pipe 7 is installed between inlayer template 10 and outer template 11, outer template 11 and second heat preservation 12 have the heat preservation effect to steam curing pipe 7, can prevent in steam curing pipe 7 that the heat loss is too big when letting in steam by steam generator 6, and steam curing pipe 7 presses close to inlayer template 10, promote the heat transmission efficiency to steam curing pipe 7 to inlayer template 10, and then the heat preservation effect of inlayer template 10 to the concrete when improving high mound concrete pouring and maintenance, promote high mound concrete structure's quality.

It should be noted that, as shown in fig. 2, in order to ensure that the steam in the steam generator 6 flows in the steam generating pipes 7 to transfer heat to various regions of the inner formwork 10, the steam generating pipes 7 are configured in an i-shaped structure, and correspondingly, the steam generating pipes 7 are disposed with the placement grooves 14 on the support bars 13 at the intersection points of the steam generating pipes 7 and the support bars 13 in the vertical direction. In other embodiments of the present invention, other structures can be used to arrange the steam generating pipe 7, as long as the object of the present invention is achieved.

It is worth explaining, in order to guarantee steam transmission efficiency and the structural safety of steam maintenance pipeline 7, steam maintenance pipeline 7's diameter is 2.5cm, in the utility model discloses other embodiments, also can use the steam maintenance pipeline 7 of other diameters, as long as satisfy the utility model discloses a requirement can.

It is worth mentioning that, in the connection between the steam generating pipe 7 and the steam generator 6, the steam generating pipe 7 is exposed out of a part of the outer formwork 12, and in order to prevent the exposed part of the steam generating pipe 7 from dissipating heat too fast, the part of the steam generating pipe 7 is wrapped with foam insulation cotton. In other embodiments of the present invention, the steam generating pipe 7 may be wrapped with an insulating layer of other material.

It is worth explaining that, when the double-layer curing formwork is disassembled after construction, only the exposed steam curing pipeline 7 needs to be disassembled, the exposed steam curing pipeline 7 is connected with the steam curing pipeline 7 in the double-layer curing formwork through a hose, the disassembly and the assembly are very convenient, the double-layer curing formwork does not need to be disassembled, and the efficiency is greatly improved when the whole device is assembled and disassembled.

It should be noted that, in this embodiment, in order to ensure the structural strength, the heat preservation effect and the recycling effect of the outer formwork 11 and the inner formwork 10, the inner formwork 10 is a steel formwork, the outer formwork 11 is a wood formwork, the structural strength of the steel formwork is high, the heat transfer effect is good, the heat of the steam curing pipeline 7 is favorably transmitted to the inner formwork 10, the heat preservation effect during the high pier concrete pouring and the curing effect after the pouring are further ensured, the heat transfer effect of the wood formwork is poor, the heat preservation effect is good, and the heat dissipation of the steam curing pipeline 7 is favorably prevented.

Further, the surface of the steam generator 6 is wrapped with a first heat-insulating layer 8; the steam generator 6 is provided with an isolation protection frame 9 around. The first heat preservation layer 8 is wrapped outside the steam generator 6, so that heat loss of the steam generator 6 can be effectively prevented, the efficiency of the steam generator 6 is improved, and resources are saved; steam generator 6 installs isolation protection frame 9 all around, prevents that personnel from being too close to steam generator 6, the danger of scald appears, promotes the security.

It should be noted that the first thermal insulation layer 8 may be a foam thermal insulation layer, and in other embodiments of the present invention, may also be a self-heating thermal insulation layer such as an electric blanket, as long as the purpose of the present invention is achieved.

Further, a temperature detector 15 is provided between the inner layer mold plate 10 and the outer layer mold plate 11. The temperature detector 15 can be used for effectively detecting the temperature between the inner-layer template 10 and the outer-layer template 11, the temperature between the heat-preservation inner-layer template 10 and the outer-layer template 11 is a specified temperature, the heat preservation effect of the inner-layer template 10 on the concrete high pier when the high pier concrete is poured and the heat preservation maintenance is finished is further ensured, and the quality of the concrete high pier is improved.

It is worth explaining, this embodiment is used for hydraulic climbing formwork structure, in the utility model discloses in other embodiments, also can use this device and other climbing formwork structures combine together.

In view of the above structure, the present embodiment provides an installation method and a working method of the present invention, as shown in fig. 3, including the following steps.

And S1, setting a pier bottom bearing platform 1 and a concrete precast section 2, and installing a hydraulic creeping formwork mechanism and a creeping formwork operating mechanism.

S2, installing a double-layer curing template, spraying 4cm of polyurethane foam on the outer surface of the outer layer template 11, laying a steam curing pipeline 7, and installing a steam generator 6.

And S3, plugging the leaks of the template structure by using the sprayed foam rubber, and carrying out die assembly correction on the double-layer maintenance template structure.

And S4, starting the steam generator 6, preheating the double-layer curing template, and ensuring the temperature between the inner-layer template 10 and the outer-layer template 11 to be a specified temperature according to the detection result of the temperature detector 15.

And S5, after the double-layer curing template is preheated, pouring concrete, and continuing working with the steam generator 6 to ensure that the value of the temperature detector 15 is a specified value.

And S6, finishing pouring of the concrete high pier at one section, paving a heat insulation material such as foam heat insulation cotton at the top, continuing working of the steam generator 6, and performing steam curing on the poured concrete high pier at the section.

And S7, after the steam curing is finished, naturally cooling the template, and removing the template to enter the next concrete high pier pouring and curing stage.

It should be noted that, in this embodiment, the temperature in steps S6 and S7 is 20 degrees celsius, so as to ensure the temperature during concrete pouring and concrete heat preservation and curing, and further ensure the construction quality. In other embodiments of the present invention, the temperature is required to be maintained at a level of not less than 5 degrees celsius.

It should be noted that, in this embodiment, the time for steam heating curing in step S8 is 7 days, so as to further ensure the construction quality. In other embodiments of the present invention, it is preferable that the curing time is set to ensure that the concrete reaches 100% of the design strength as required.

The invention has been applied to the actual construction, in the construction of moving newly-built engineering cang longjian river grand bridge from the national 310 Luo three kingdoms to the west of the three gorges, the grand bridge is arranged according to the split bridge section, the left total length is 1178m, and the right total length is 1098 m.

The invention is adopted to construct 10 main piers (with pier height of 80m-89 m) of the Jianlongriver grand bridge, overcomes the defect that concrete in the local area can not be constructed in winter, and can save a great deal of time for completion of the engineering according to time by advancing the construction period by 60 days; meanwhile, the using amount of the building materials of the steam curing greenhouse is saved in the construction process, and meanwhile, the traditional fossil energy steam boiler is abandoned, so that the environmental protection and the safety in the construction process are greatly improved. Through measurement and calculation, compared with the conventional construction method, the construction method saves labor cost at the front and the back: 150 (yuan/day) × 60 (days) × 100 (human) =90 ten thousand yuan, material cost: 10 × 15 (warm shed) =150 ten thousand yuan, equipment lease fee of tower crane and the like: 10 × 3.5 (ten thousand/month) × 2 (month) =70 ten thousand yuan; and (4) management fee: 60 (days) × 400 (yuan/day) × 10 (human) =24 ten thousand yuan. The economic benefits are generated in total: 90+150+70+24=334 ten thousand yuan.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a high mound curing means that is under construction in winter which characterized in that, includes pier bottom cushion cap (1), sets up concrete precast section (2) on pier bottom cushion cap, sets up hydraulic pressure creeping formwork mechanism and the creeping formwork operating device who sets up on hydraulic pressure creeping formwork mechanism on concrete precast section (2), be provided with double-deck maintenance template on the hydraulic pressure creeping formwork mechanism.

2. A high pier winter construction maintenance device according to claim 1, characterized in that the hydraulic creeping formwork mechanism comprises an upper frame (3) and a lower frame (4); the creeping formwork operation mechanism comprises a main operation platform (5); lower support body (4) set up on concrete precast segment (2), it is located support body (4) top down and is connected with lower support body (4) to go up support body (3), double-deck maintenance template sets up on last support body (3), main operation platform (5) set up under on support body (4), are provided with steam maintenance mechanism on main operation platform (5), steam maintenance mechanism is connected with double-deck maintenance template.

3. A high pier winter construction maintenance device according to claim 2, characterized in that the steam maintenance mechanism comprises a steam generator (6) and a steam maintenance pipe (7), the steam generator (6) being arranged on the main operating platform (5), the steam maintenance pipe (7) being arranged inside the double-deck maintenance formwork and communicating with the steam generator (6).

4. A high pier winter construction maintenance arrangement according to claim 3, characterized in that the steam generator (6) is surface coated with a first heat insulation layer (8); the periphery of the steam generator (6) is provided with an isolation protection frame (9).

5. A high pier winter construction maintenance arrangement according to claim 1, characterized in that the double layer maintenance formworks comprise an inner layer formwork (10) and an outer layer formwork (11); and a second heat-insulating layer (12) is arranged on the outer side surface of the outer layer template (11).

6. A high pier winter construction maintenance arrangement according to claim 5, characterised in that a support means is arranged between the inner (10) and outer (11) formworks.

7. A high pier winter construction maintenance device according to claim 6, characterized in that the supporting means are supporting rods (13), the supporting rods (13) are transversely arranged between the inner formwork (10) and the outer formwork (11), and the supporting rods (13) are provided with placing grooves (14) matched with the steam maintenance pipes (7).

8. A high pier winter construction maintenance device according to any one of claims 5 or 6 or 7, characterized in that the creeping formwork operating mechanism further comprises a temperature detector (15), the temperature detector (15) being arranged between the inner layer formwork (10) and the outer layer formwork (11).

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