KR20030068732A - A Set Establish Form Method for Upper Slab of Bridge - Google Patents

Abstract

PURPOSE: A structure of installing forms for the upper slab of a bridge is provided to shorten the term of work and the cost of construction, also to cut down on time, materials and manpower by the improved way of form installation. CONSTITUTION: The structure of installing forms for the upper slab of a bridge is composed of: the hanger(21) of a bracket(20) is hung on the stud bolt(101) of a steel box(100); fixing the vertical part or the supporting of the bracket to the end face of a main beam(12) by a bolt(50) and a nut(51), therefore the weight of the main beam makes the bracket naturally fixed; putting crossing timber beams(13) perpendicularly on the main beam at regular distances, and a screw-type height control unit(15) properly supports the crossing timber beams by adjusting the screw(15a) joined to a lock nut(15b), according to the height of an upper steel plate(11); putting an upper steel plate(11) on the crossing timber beam.

Description

A Set Establish Form Method for Upper Slab of Bridge

The present invention relates to the construction of the upper slab of the bridge, specifically, to improve the installation structure of the formwork installed in the steel box hole for the concrete slab of the upper slab of the bridge to significantly reduce the material, manpower and time, and also the construction cost and The present invention relates to a structure for installing an upper slab formwork for a bridge that significantly shortens the air and ensures safety construction.

In general, bridges are high-rise structures that can be constructed to cross rivers or other lowway traffic or structures.

The upper structure of the bridge is a structure that is installed at the top of the pier, a kind of support that allows the ascon is wrapped on the upper structure to enable the vehicle to drive.

Steel box construction method for completing the upper slab by connecting the steel box of a certain standard on a plurality of bridges to align each other and aligning the steel box of the steel box connected to each other in this way in the construction of the upper structure of the bridge is widely practiced.

Steel box 100 in which slab concrete is poured is formed with a plurality of holes 102 arranged regularly in a square shape on the upper horizontal plane as shown in the plan view in FIG. In order to pour the slab concrete on top of the plurality of formwork 10 corresponding to each hole 102 is installed.

Formwork 10 used in the steel box method is a yoke beam 12 is arranged at a predetermined interval in order to become a support base of the formwork in the square hole and the top plate 11 to be a concrete placing bottom surface on the yoke beam. Is installed, the top plate 11 is made of wood plywood flat finish to form the inclined portion (11b) and the edge of the inclined portion inclined on each side of the square plate (11a) and the square plate (11a) of the top surface It is comprised by the part 11c.

In order to mount such a top plate on the yoke beam 12 at a height thereof, a stiffener material 13 is provided between the yoke beam 12 and the top plate 11 at predetermined intervals.

2 is a partial cross-sectional side view showing a concrete formwork installation structure in the steel box method, Figure 3 is a plan view of FIG.

As shown in Figures 2 and 3, the installation of the formwork 10 in the steel box method according to the prior art welding and fixing the nut 220 to the support plate 210 fixed to the steel box 100, The yoke beam 12 serving as the base of the formwork is installed between the opposing c-channels 240 by fixing the c-channel 240 so that the opening is opposed to the bolt 230 fastened to the nut 220. In the upper part of the yoke beam 12, the stiffeners 13 are installed in the front and rear directions, and the upper plate 11 serving as the bottom surface of the concrete is positioned thereon.

The formwork 10 installed in this way releases the bolts 230 after concrete pouring and curing, and dismantles the yoke beam 12, the lumber 13 and the upper plate 11.

However, as described above, the installation structure of the formwork using the nut 220 and the bolt 230 requires a large amount of manpower and time because the nut 220 is fixed to the support plate 210 by welding 250. The channel is required, because the height of the height of the installation of the channel 240 is dependent on the fastening state of the bolt 230, the height of the formwork is finally lowered, the bolt through the narrow lower hole 241 of the channel at height Fastening has a problem that the workability is degraded, which requires a lot of manpower and time.

Meanwhile, when dismantling the formwork, the bolt 230 must be loosened through the lower hole 241 formed in the c-channel 240 at a height. However, there was a problem in that workability was excessively consumed due to poor workability.

In addition, the sill lumber 13 of the formwork by stacking and adjusting several pieces to adjust the height of the top plate as a timber and fixed by nailing the height of the lowering of the construction quality is lowered, the nails are damaged to be damaged when the formwork is dismantled There was a problem that can not be reused.

After dismantling the form, the subsequent process of refilling the bolt 230 seat hole with concrete should be followed, and the seat is exposed after being filled to make the appearance beautiful.

As such, the installation structure of the formwork according to the prior art is accompanied by a process of welding the nut 220, the process of fastening the c-channel 240 at the height using the bolt 230, the process of unpacking the bolt 230 at the time of dismantling Many of the processes are waste of manpower, time and materials, respectively, waste a lot of construction costs and air delays, and the construction precision and aesthetics are also poor.

The present invention has been made to solve the above problems,

An object of the present invention is a process that wastes manpower and time by adopting a simple hanger fixed to the stud bolt of the steel box and the welding work according to the nut and bolts and c-channel installation that were problems in the prior art By eliminating this, simply formwork is installed, and also to facilitate the height adjustment of the top plate,

It is to provide an upper slab formwork for bridges that can drastically reduce manpower, time, and materials, thereby significantly reducing construction costs, shortening air, safety construction, improving precision, and beautiful appearance.

1 is a plan view of a steel box.

Figure 2 is a partial cross-sectional side view showing a formwork installation structure of the prior art.

3 is a plan view of FIG.

Figure 4 is a partial cross-sectional side view showing the configuration of an embodiment according to the present invention.

5 is a plan view of FIG. 4.

Figure 6 is a perspective view showing the configuration of the hanging bracket of an embodiment according to the present invention.

Figure 7 is a side cross-sectional view showing the configuration of another embodiment according to the present invention.

8 is a perspective view showing the configuration of the hanging bracket applied to FIG.

9 is a block diagram of another embodiment according to the present invention.

* Explanation of symbols for the main parts of the drawings

10: Die 11: Tops

12: yoke beam 12a: copper

12b: bolt hole 12c: screw hole

13: boiled lumber 15: screw type height adjusting means

15a: screw 15b: lock nut

15c: mounting portion 20: hanging bracket

21: hanger part 22: vertical part part

23: base 24: bolt hole

25: cut 50: bolt

51: nut 100: steel box

101: stud bolt 210: support plate

220: nut 230: bolt

240: channel 241: lower hole

250: weld

Bridge top slab formwork installation structure according to the present invention for achieving the above object,

For the construction of the upper slab of the bridge that is constructed by the steel box method, the slab is installed to support the top plate on the yoke beam, the base of the formwork, and the top plate is installed on the top of the slab to be the concrete floor surface. In installing in the hole of the steel box,

By adopting a hanger bracket with a hanger for hanging on the stud bolt fixed to the steel box and a beam fixing part for fixing the yoke beam that is the support base of the formwork top plate,

The yoke beam is supported by the hanging bracket and the formwork is installed.

In one embodiment of the present invention,

Beam fixing part of the hanging bracket is made by forming a plurality of bolt holes in the vertical portion provided on one side of the hanger,

The yoke beam is provided with a bolt hole formed at the end of the yoke beam, characterized in that the bolt is fastened to the beam fixing portion of the hanging bracket.

In one embodiment of the present invention,

Beam fixing part of the hanging bracket is made of a bolt hole is formed in the vertical portion formed in one side of the hanger portion and the support portion provided in a perpendicular direction to the vertical portion,

Forming a bolt hole at the end of the yoke beam is characterized in that the bolt is fastened to the beam fixing part of the hanging bracket.

In one embodiment of the present invention,

The hanger is characterized in that it is made of a structure in which the formwork is dropped by hitting the hanger by giving a price cut.

In one embodiment of the present invention,

In order to adjust the height of the lumber,

Forming a screw hole through the yoke beam and fixing the lock nut on the screw hole;

Screw type height adjustment means comprising a screw fastened to the lock nut and a ridge angle mounting portion provided on the screw is provided.

In one embodiment of the present invention,

The hanging bracket may be fixed to the channel opposite to each other, and a yoke beam may be installed and fixed between the channels.

Hereinafter, a preferred embodiment of the upper slab formwork installation structure for bridges of the present invention will be described in more detail with reference to the accompanying drawings.

4 is a partial cross-sectional side view showing a part of the upper slab formwork 10 installation structure for the bridge according to the present invention, Figure 5 is a plan view of Figure 4, Figure 6 is a hook bracket 20 of an embodiment according to the present invention Perspective view.

As shown in Figures 4 to 6, the installation structure of the upper slab formwork 10 for the bridge of the preferred embodiment according to the present invention,

For the construction of the upper slab of the bridge that is constructed by the steel box method for the construction of the top plate 11 on the yoke beam 12, which is the base of the formwork, the stiffeners 13 are installed and concrete on the top of the stiffeners 13 In installing the formwork 10 formed by the top plate 11 to be the bottom surface in the hole of the steel box 100,

A hanger bracket (20) having a beam fixing part for fixing a hanger part (21) to be hooked on the stud bolt (101) fixed to the steel box (100) and a yoke beam (12) which is a support base of the formwork top plate is adopted. So,

The yoke beam 12 is supported by the hanging bracket 20 and the formwork 10 is installed.

In one embodiment of the present invention,

Beam fixing part of the hanging bracket 20 is formed by forming a plurality of bolt holes 24 in the vertical portion 22 provided below one side of the hanger 21,

It is preferable that the bolt 50 is fastened to the vertical portion 22, which is the beam fixing part of the hanging bracket, by providing a flange 12a having a bolt hole 12b formed at an end of the yoke beam 12.

The hanger 20 according to the embodiment of the present invention is formed to hang on the stud bolt 101 of the steel box 100 in the form of the hanger portion 21 is an inlet is exploded, the hanger ( 21) forming a vertical portion 22 formed in a predetermined length vertically downward on one side, and the price cut portion 25 is provided at a predetermined position of the vertical portion 22 to hit the lower portion of the die 10 falls It is made of a structure.

The cutting portion 25 is preferably configured to be in a horizontal position with the concrete placing bottom surface.

7 is a side cross-sectional view showing a formwork installation structure of another embodiment according to the present invention, Figure 8 is a perspective view of the hanging bracket applied to FIG.

As an embodiment of the present invention, as shown in Figures 7 and 8

The beam fixing part of the hanging bracket 20 is bolted to the vertical part 22 formed at one side of the hanger part 21 and the support part 23 provided at right angles to the vertical part 22. Is formed and made,

The yoke beam 12 may be fastened to the bolt 50 by forming a bolt hole 24 at an end thereof to the support 23 of the beam fixing part of the hanging bracket.

Reference numeral 26 is an embossing rib for strength reinforcement.

In one embodiment of the present invention,

The yoke beam member 13 has a screw hole 12c formed in the yoke beam 12 to adjust its height. The lock nut 15b is welded and fixed on the screw hole 12c. Screw-type height adjusting means 15 including a screw 15a fastened to 15b) and a shell material mounting portion 15c provided on the screw 15a is provided.

The screw 15a may be provided with a twirl handle.

As an embodiment of the present invention, as shown in FIG. 9, the d channel 60 may be fixed to the hanging 20 so that the left and right beams may be fixed to the d channel 60.

Look at the working state of the upper slab formwork installation structure for bridges according to the present invention.

In installing the formwork 10 in the steel box 100 for the upper slab construction of the bridge, the present invention is a hook for fixing the yoke beam 12 that is the base of the formwork 10 to the steel box 100 The bracket 20 is to be simply installed.

The yoke beam 12 is directly attached to the vertical part 22 or the support 23 of the beam fixing part while the hanger part 21 of the hanging bracket 20 hangs on the stud bolt 101 of the steel box 100. The fastener 12a or the end of the bolt 50 and the nut 51 are fastened using the yoke beam 12 due to the load of the hanging bracket 20 is naturally fixed.

When the yoke beam 12 is fixed to the hanging bracket 20, the stump material 13 is arranged at a predetermined interval thereon.

At this time, the screw height adjustment means 15 by adjusting the lifting or lowering the screw (15a) fastened to the lock nut (15b) fixed to the yoke beam 12, the upper plate 11 having a relatively high height The center square part 11a of) is easily collected using a single square material.

Thus, the yoke beam 12 is installed on the yoke beam 12, and then the top plate 11, which becomes the bottom surface of the concrete, is placed to install the formwork 10.

That is, in the upper slab steel box formwork installation structure for bridges according to the present invention, only the hook bracket 20 is hooked to the stud bolt 101 of the steel box, and the bolt hole formed in the beam fixing part and the yoke beam 12 ( Installation of the formwork is made by a simple operation of fastening the bolt 50 to 24).

In addition, during the disassembly of the formwork after concrete pouring and curing, the cutting part 25 is broken when the cutting part 25 is hitted below the yoke beam 12 fastened to the beam fixing parts 22 and 23, and The ridged beam member 13 and the upper plate 13 which were supported here fall together.

In this way, the mold 10 which is dropped at the same time from the hanger bracket 20 breaks out of the cutting section 25, which is broken out of the fastening bolt 50, and the formwork is dismantled to each member and reused. By improving the safety and workability.

In addition, the cutting unit 25 position of the hook is made to be horizontal on the concrete floor so that the unevenness caused by the hook bracket 20 does not occur below the slab and does not lose its beauty in appearance.

On the other hand, the ridged timber 13 is not piled up as in the prior art, but is raised as a single member by using the screw height adjustment means, the material is saved, the height and accuracy is improved, and even when dismantled is prevented damage It can be reused.

The present invention is enormous in the nut welding fixing to the support plate, which is provided in the prior art, the separate channel is provided, the installation of the channel through the fastening bolts, difficult dismantling work to release the bolt located in the height through the narrow hole of the channel By eliminating manpower, time, and waste of materials, it dramatically reduces construction costs, shortens air, saves materials, ensures safe construction, improves construction quality, and enables recycling of slag materials.

As those skilled in the art to which the present invention pertains, various permutations, modifications, and changes can be made without departing from the spirit and scope of the present invention. no.

As described in detail above, the upper slab formwork installation structure for bridges according to the present invention,

It is fixed by hanging on the stud bolt of the steel box, and by adopting the hanging bracket to fix the yoke beam directly without the opening of the channel,

By greatly simplifying the installation of the formwork and performing the dismantling operation efficiently, the material and manpower are greatly reduced compared to the prior art, thereby reducing enormous cost, shortening the air, and safe construction.

It is a very innovative technology that makes it easy to adjust the height of the raised slab to improve the construction quality and to recycle the materials.

Claims (6)

For the construction of the upper slab of the bridge that is constructed by the steel box method, the slab is installed to support the top plate on the yoke beam, the base of the formwork, and the top plate is installed on the top of the slab to be the concrete floor surface. In installing in the hole of the steel box, By adopting a hanger bracket with a hanger for hanging on the stud bolt fixed to the steel box and a beam fixing part for fixing the yoke beam that is the support base of the formwork top plate, The yoke beam is supported by the hanging bracket and the upper slab formwork installation structure for the bridge, characterized in that the formwork is installed. The method of claim 1, Beam fixing part of the hanging bracket is made by forming a plurality of bolt holes in the vertical portion provided on one side of the hanger, The upper slab formwork for the bridge, characterized in that the bolt is formed on the end of the yoke beam bolted to the beam fixing portion of the hanging bracket. The method of claim 1, Beam fixing part of the hanging bracket is made of a bolt hole is formed in the vertical portion formed in one side of the hanger portion and the support portion provided in a perpendicular direction to the vertical portion, The upper slab formwork for the bridge, characterized in that the bolt hole is formed at the end of the yoke beam bolted to the beam fixing part of the hanging bracket. The method of claim 1, The upper slab formwork installation structure for the bridge, characterized in that the form is made by dropping the formwork by giving a price cut portion to the hanger. The method of claim 1, In order to adjust the height of the lumber, Forming a screw hole through the yoke beam and fixing the lock nut on the screw hole; The upper slab formwork for the bridge, characterized in that the screw-type height adjustment means including a screw fastened to the lock nut and a ridge angle mounting portion provided on the screw. The method of claim 1, The hook bracket is fixed to the channel opposite to, and the upper slab formwork installation structure for the bridge, characterized in that the yoke beam is installed and fixed between the c channel.