JPH10204833A - Concrete flattener and rainproof and heat insulating umbrella - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to place concrete without an inspection/ measurement bar by arranging rails using H steel sideways on the overhanging sections of the arms of overhanging shutterings in steel bridge works. SOLUTION: Overhanging shutterings 4 are supported by timberings 6, and cross H steel rails 8, 8 are placed on the overhanging sections of the arms 7 overhanging from the overhanging shutterings 4. A pole 13 having wheels 11, 12 that fastens the horizontal H steel from above and below, are erected on the rails. Suspension platforms 14 to be connected between poles are provided in a manner that allows them to be extended or fixed between the poles, and an adjustable flattening plate 15 is suspended to the suspension platforms 14. The flattening plate 15 is positioned by an adjustment nut 18 so that it may flatten concrete at a height specified in a drawing. Therefore, as correct height ensured by the timberings of the overhanging shutterings, in combination with a height adjustable flattening plate suspended to the suspension platforms, allows concrete floor works without an inspection/measurement bar.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete leveling device mainly used for floor slab construction in steel bridge construction, and more particularly to a concrete leveling system which is installed by using a projecting portion of a brace for supporting an overhanging formwork. The present invention relates to an invention relating to a concrete slab construction in which a slab device, a rain-proof and heat-proof umbrella, and a combination thereof, and which can be used other than a steel bridge construction.

[0002]

2. Description of the Related Art Conventionally, various concrete leveling devices (also referred to as finishers) have been developed, but since they have been developed on the premise of use on land, floor slab construction in steel bridge construction. There was nothing suitable for. At present, there is no patent information used for bridges.

[0003] Further, in floor slab construction in steel bridge construction, a concrete slab is formed by accurately measuring the height with a measuring bar. Due to the presence of the detecting bar, a wide concrete leveling plate is used. No scrubbing equipment was available, and the only option was to use a concrete leveling machine limited to the range of the width of the inspection line.

However, when the rails of the concrete leveling device are laid for each width of the inspection line, use of the device for automation requires much time and effort. Therefore, in practice, it has always been customary to perform the leveling work of concrete in steel bridge construction manually. Furthermore,
With the completion of the construction work for the concrete floor slabs, the labor required to eliminate these inspection lines was also great.

Secondly, in concrete slab construction of a steel bridge, it is necessary to avoid abnormally high temperatures due to rain or direct sunlight during or for a certain time after the concrete is laid. However, no countermeasures as in the past have been taken, and the reality is that the countermeasures are determined by determining the construction date and time based on the weather forecast.

[0006]

SUMMARY OF THE INVENTION The first object of the present invention is to pay attention to the accurate height setting of an overhanging form support in steel bridge construction, and to perform concrete casting without inspection bars, and An object of the present invention is to solve the above-mentioned problems by providing a concrete leveling device which can be used for concrete placing work of a wide or narrow bridge without being affected by the width of the bridge.

[0007] A second object of the present invention is to provide a concrete bridge in a slab of a steel bridge in which rainfall and temperature are properly controlled during and after the concrete placement work, so that the efficiency of the concrete placement work can be improved. The purpose of this is to make it possible to cast concrete concrete.

A third object of the present invention is to make it possible to use a concrete leveling device or the like in this steel bridge construction other than in a steel bridge.

[0009]

SUMMARY OF THE INVENTION In order to solve the first problem, the present invention lays a rail using H steel laterally on an overhang portion of an arm tree overhanging from left and right overhang formwork in steel bridge construction. A pillar having wheels that sandwiches an upper flange of a horizontal H-steel from above and below is provided on both rails, and a suspension stand for connecting the pillars is provided so as to be expandable and contractible in the direction between the pillars. Provided is a concrete leveling device for steel bridge construction, characterized in that a slab is hung.

[0010] In order to solve the second problem, the present invention lays a rail using H steel laterally on the overhang portion of the arm bar that overhangs from the left and right overhang formwork in the steel bridge construction, and horizontally extends on both rails. A steel having a pillar having wheels for sandwiching an upper flange of H steel from above and below, connecting joints that can be fixed in a stretchable manner in the direction between the pillars, and attaching a roof such as a sheet to a roof frame formed by the joint. Provide rain and heat umbrellas for bridge construction.

Further, in order to simultaneously solve the first and second problems, there is provided a combination of the rain-proof and heat-resistant umbrella for steel bridge construction and the concrete leveling device for steel bridge construction.

Further, in order to solve the third problem, there is provided an overhanging formwork using a rail receiver in place of the overhanging portion of the arm bar.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to the drawings. The first invention relates to a concrete leveling device in steel bridge construction. FIG. 1 is a front view of a concrete leveling device in steel bridge construction using an example of the present invention. 1 to 3 show the outline of the formwork work in the steel bridge work.

First, the first to third inventions use a stub of an overhang formwork in steel bridge construction. Therefore, an outline of the formwork construction will be described with reference to FIG. In the figure, 1 is a girder supporting the concrete slab 19 and 2 is a girder 1
The upper flange. Stringer 1 has concrete slab 1
Nine molds are attached. The suspension beam 3,
There is an overhanging formwork 4 and a ground covering formwork 5. At the time of placing the concrete slab 19 in the steel bridge construction, the concrete slab 19 was not completed but was virtually drawn to clarify the relationship with only the formwork.

The suspension beams 3 are fixed to the upper flanges 2 of both the stringers 1 with a formwork attached between the stringers 1. Although two stringers 1 are used in the illustrated embodiment, the number of strings differs depending on the width of the bridge. When three or more stringers 1 are used, two or more suspension beams 3 are used.

Attached to the outside of the stringers 1 at both ends is an overhanging formwork 4 which is regarded as important in the present invention. The overhanging formwork 4 ensures an accurate height which is not affected by the weight of concrete. It is supported by the shoring 6 to perform The overhanging formwork 4 is used as a member for securing the exact height by the support 6. Arms 7 which are also used as construction scaffolds are overhanging. The length of the arm 7 is not particularly limited. However, when two sets of the rails 8 and 9 are laid as in the embodiment, the length of the arm 8 is slightly larger than a normal overhang width.

The ground cover form 5 which is another of the forms is for forming the ground cover on both sides of the bridge. Normally, an inspection line is provided above the stringer 1, but in the present invention, the inspection line is not used because the height and the horizontal are set based on the arms 7 of the overhanging formwork 4.

Hereinafter, a concrete leveling apparatus according to an embodiment of the first invention will be described. The leveling device rails 8 are laid on the overhang portions of the left and right arms 7. Reference numeral 9 in the figure denotes an umbrella rail, which is laid outside the leveling device rail 8. It is not directly necessary for the first invention alone. That is, when the rainproof and heatproof umbrella according to the second invention is used at the same time, two rails 8 and 9 are laid on the left and right arms 7. The leveling device rail 8 and the umbrella rail 9 use a steel material using H steel in a horizontal direction.

The leveling device movably arranged on the leveling device rail 8 includes a column 13 having wheels, left and right columns 13.
It has a hanging stand 14 to be passed between and a leveling plate 15 suspended from the hanging stand 14. The concrete leveling device has functions necessary for leveling work such as a vibration generator. In FIG. 1, since only two columns 13 are visible since they are drawn from the front, the column 13 is usually composed of four columns 13.

The traveling wheels provided at the lower end of the column 13
The upper wheel 11 and the lower wheel 12 are arranged so as to sandwich the upper flange 10 of the leveling device rail 8. As a result, the wheels of the leveling device did not easily derail. In the illustrated embodiment, the upper and lower wheels 11, 12 and the support 13
Are integrally formed, but may be assembled separately.

The suspension stand 14 of the leveling device is formed as a three-piece so as to be able to expand and contract in the width direction of the bridge, and is fixed to a predetermined length with bolts (not shown in FIG. 1).
That is, the left and right suspension stands 14 supported by the columns 13 are
The slightly smaller end face is composed of a rectangular frame, and the central frame is a frame with a rectangular opening that can be inserted with left and right rectangular frames. The width of 14 can be expanded and contracted.

From the suspension table 14, a leveling plate 15 is hung. The leveling plate 15 is suspended by a suspension shaft 16, a receiving box 17 and a height adjusting nut 18. The position of the leveling plate 15 is set by the height adjusting nut 18, and the concrete can be leveled to the height as shown in the drawing. Although only one leveling plate 15 can be observed from the front side, two leveling plates 15 are attached to the front and rear sides, and by oscillating left and right, uniform leveling work can be performed. It is possible to level the work up to the ground cover.

Next, a second embodiment of the invention will be described. The configuration of the umbrella rail 9 and the wheel formed at the lower end of the umbrella support 20 used in the rainproof / heatproof umbrella is similar to that of the leveling device, and the outer rail of the leveling device rail 8 is used as the umbrella rail 9. The upper wheel 11 and the lower wheel 12 are disposed so that the upper flange 10 of the umbrella rail 9 is sandwiched between the upper wheel 11 and the lower wheel 12. As a result, the wheels of the rain and heat protection umbrella do not easily derail. In FIG. 2, in addition to the umbrella rail 9, the leveling device rail 8 is also laid, but it goes without saying that only the umbrella rail 9 may be used in the embodiment of the second invention.

The relationship between the upper and lower wheels 11, 12 and the umbrella support 20 may be formed integrally as in the case of the leveling device, but in the embodiment shown in FIGS.
The means 1 and 12 are provided in the wheel box 31, and the umbrella support 20 is inserted into the wheel box 31. This means makes the assembly and disassembly work easier.

That is, after the left and right wheel boxes 31 are mounted on the umbrella rail 9, the umbrella posts 20 are erected on the wheel box 31, the palms 21 are attached, and these are moved forward. Attached to rail 9,
By repeating the same operation, the assembling operation becomes easier. In addition, the umbrella support 20 is required at least four,
Obviously, a large number of rain umbrellas are required according to the required length.

After the left and right umbrella struts 20 are erected on the left and right wheel boxes 31 attached to the umbrella rail 9, a telescopically fixed joint 21 is attached to the upper end thereof. here,
Although the umbrella support 20 and the joint 21 have been described as separate members, there is no problem even if both are fixed. A separate member is more suitable for the movement, and should be fixed if easy assembly is required.

The stretchable fixed palm 21 has a thick pipe 22 on the umbrella support 20 side and a thin pipe 23 on the apex side, and the thin pipe 23 is slidably inserted into the thick pipe 22. Are connected rotatably at the apex. Therefore, when attaching the joint palm 21 to the umbrella support 20, the thick pipe 22 is extended to a required length and then fixed with the stopper 24.

At least, after the front and rear joints 21 are assembled, necessary braces 27 are attached and covered with a roof sheet 25 and a wall sheet 26. Enclosures will be provided on the minimum required roof and any necessary walls. Although the enclosure of FIG. 2 is configured by separately forming the roof sheet 25 and the wall sheet 26, both can be configured by one sheet as shown in FIG. The third invention is a combination of the first invention shown in FIG. 1 and the second invention shown in FIG. 2, as shown in FIG.

The above-mentioned invention utilizes the overhang portion of the arm 7 of the overhang formwork in the steel bridge construction.
By adding the rail guide 28 to the constituent members, the first to third inventions can be used in other places. The rail guide 28 is a rail support 2 having a rail laying width in which both ends of an open bottom are bent at right angles to form an open top.
9 and a stake 30 for fixing, and may be a long one like a rail, but it is also possible to use a short one divided into only parts necessary for fixing. The pile is driven into the ground so that the guide rail 28 has the set height, and the H steel, which becomes the rails 8 and 9, is fixed to the rail guide 28.

A fourth embodiment of the present invention is a concrete leveling device in which a leveling device rail 8 is laid on the rail guide 28, and an umbrella rail 9 is laid on the rail guide 28, and a protective device using the same is used. A rain protection umbrella is the fifth invention, and a concrete leveling device with an umbrella using two rails laid on a rail guide and using the rail is a sixth invention.

[0031]

The present invention has the following effects.
In the first invention, since a rail using H steel is laid laterally on the overhang portion of the arm of the left and right overhanging formwork in the steel bridge construction, the accurate height of the overhanging formwork is supported. The concrete floor slab construction without inspection bars was made possible by the combination with the height-adjustable leveling board suspended from the hanging stand.

Another advantage of the first invention is that a pillar having wheels that sandwiches an upper flange of a horizontal H-steel rail from above and below is erected, thereby reducing the risk of derailment. Since the suspension connecting the spaces is provided so that it can be extended and contracted in the direction between the columns, it can be used for concrete floor slab construction of bridges of various widths regardless of the width of the bridge, that is, the width of concrete slab. That is.

In the invention of the rainproof and heatproof umbrella of the second invention, since the concrete floor slab can be surrounded by a sheet, rainfall and temperature control can be easily performed. Further H
Steel is used for the rail, and the upper flange of the rail is sandwiched between the upper and lower wheels, so it does not derail due to wind or other obstacles. By making the roof jointable, such as a pipe-insertable type, it is also possible to cope with concrete slab construction of steel bridges of different widths. still,
Although the effect of the embodiment of the second invention is provided, the wheel box and the umbrella support are formed as separate members, and the wheel box can be inserted when the umbrella support is set up, so that it can be easily carried.

The third embodiment of the present invention, which is an apparatus for leveling concrete with an umbrella, is capable of simultaneously obtaining the effects of the first invention and the effects of the second invention. It is now possible to automatically control concrete conditions during rainfall, high temperature, and low temperature.

In the fourth to sixth inventions, the first to third inventions can be used for purposes other than steel bridge construction.
The range of use has expanded.

[Brief description of the drawings]

FIG. 1 is a front view of a concrete leveling device.

FIG. 2 is a front view of a rain- and heat-proof umbrella device.

FIG. 3 is a front view of a concrete leveling device with an umbrella.

FIG. 4 is a plan view showing a movable range of a leveling plate.

FIG. 5 is a rail guide for laying a rail.

FIG. 6 is a partial perspective view of a rain and heat umbrella.

[Explanation of symbols]

 1. . . . . . Stringer 2. . . . . . Upper flange 3. . . . . . Suspended beam 4. . . . . . Overhang formwork5. . . . . . Ground cover formwork 6. . . . . . Shoring 7. . . . . . Arm tree 8. . . . . . Rail for leveling device 9. . . . . . Umbrella rail 10. . . . . Upper flange 11. . . . . Upper wheel 12. . . . . Lower wheel 13. . . . . Prop 14. . . . . Suspension stand 15. . . . . Leveling plate 16. . . . . Suspension shaft 17. . . . . Receiving box 18. . . . . Adjustment nut 19. . . . . Concrete floor slab 20. . . . . Umbrella support 21. . . . . Gassho 22. . . . . Thick pipe 23. . . . . Thin pipe 24. . . . . Stopper 25. . . . . Roof sheet 26. . . . . Wall sheet 27. . . . . Straight line 28. . . . . Rail guide 29. . . . . Rail holder 30. . . . . Pile 31. . . . . Wheel box

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[Procedure amendment]

[Submission date] April 17, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

[Title of Invention] con chestnut over preparative leveling device and BoameboYutakakasa

Claims (6)

[Claims] (1) A rail using H steel in a lateral direction is laid on an overhang portion of an arm bar that protrudes from left and right overhanging formwork in steel bridge construction, and a wheel sandwiching an upper flange of a horizontal H steel from above and below on both rails. A concrete leveling system for steel bridge construction, comprising: erecting a supporting column, and providing a suspension base for connecting the supporting columns so as to be freely expandable and contractable in the direction between the supporting columns, and hanging a leveling plate having an adjustable height on the suspension base. apparatus. 2. A steel bridge is laid on a rail using laterally made of H-steel on the overhanging part of the arm which protrudes from the left and right overhanging formwork in the steel bridge construction, and a wheel sandwiching the upper flange of the horizontally-oriented H-steel from above and below on both rails. A rainproof and heatproof umbrella for steel bridge construction, comprising standing up a supporting column, connecting a joint that can be stretched and fixed in the direction between the columns, and attaching a rainproof roof such as a sheet to a roof frame formed by the joint. 3. A pair of left and right H-steel is laid horizontally on an overhanging part of an arm bar projecting from a left and right overhanging formwork in a steel bridge construction. A concrete leveling device in which a pillar with wheels that sandwiches the flange from above and below is set up, a suspension stand connecting the pillars is provided so as to be able to expand and contract in the direction between the pillars, and a suspension plate with a height adjustable on the suspension stand. Providing a pillar having wheels that sandwich the upper flange of the horizontal H steel from above and below on both outer rails, connecting the joints that can be stretched and fixed in the direction between the pillars, and rainproofing sheets etc. on the roof frame formed by the joints A concrete leveling device for steel bridge construction with an umbrella, which is equipped with a rainproof and heat-resistant umbrella for steel bridge construction characterized by having a roof attached. 4. A rail which uses H steel in a lateral direction is laid on a rail receiver, and a column having wheels for vertically sandwiching an upper flange of the horizontal H steel is erected on both rails. A concrete leveling device, characterized in that a leveling plate whose height can be adjusted is hung on a hanging stand, which is provided so as to be capable of being stretched and fixed in the middle direction. 5. A rail using H steel in a lateral direction is laid on a rail receiver, and a column having wheels for vertically sandwiching an upper flange of the horizontal H steel is erected on both rails. A rainproof and heatproof umbrella characterized by attaching a rainproof roof, such as a sheet, to a roof frame that is connected and formed by a joint. 6. A pair of right and left rails using H steel in a rail support are laid in pairs of left and right, and a support having wheels for sandwiching an upper flange of the horizontal H steel from above and below is set up on both inner rails. A hanging stand to be connected is provided so that it can be extended and contracted in the direction between the columns, and a concrete leveling device with a leveling plate with adjustable height is installed on the hanging stand. With an umbrella that has a rail support, characterized by attaching a strut with wheels that sandwiches it from above, connecting a stretchable fixed palm in the direction between the pillars, and attaching a rainproof roof such as a sheet to a roof frame formed by the joint Concrete leveling device.