KR100969992B1 - Concrete Sheeting System for A Bridge Pier - Google Patents

Abstract

The present invention relates to a formwork system for piers capable of adjusting the inclination angle and height of the formwork corresponding to the pier coping portion of various sizes and shapes.

The present invention, the lower end is rotatably mounted to the hinge coupling sphere of the support is fixed on the pier is adjustable inclination, the upper surface of the formwork inclined support with a small formwork; An upper end rotatably connected to the rear of the formwork inclined support to support the load at the rear of the formwork inclined support; A lower end of the brace is positioned and fixes the brace so that the position can be moved through the pin; A circular formwork in which semi-circular members are joined together to form an inner space so as to surround a connection portion between the pier coping portion and the pier pillar; And a height adjusting mechanism having a plurality of screw jacks for vertically positioning the formwork inclined support and the support.

According to the present invention, it is possible to easily achieve the formwork installation process corresponding to the piercing coping portion of various sizes and shapes can greatly improve the work productivity, as well as to obtain an improved effect of greatly extending the formwork life.

Pier Coping Part, Formwork, Tilt Angle Adjustment, Formwork System, Sofitt

Description

Concrete Sheeting System for A Bridge Pier}

The present invention relates to a formwork system used for the construction of the pier coping part, more specifically, the formwork angle adjustment and height adjustment is possible in accordance with the size and shape of the coping part when the construction of the pier coping part (coping) various sizes And a formwork system for piers that formwork can be easily made in response to a pier coping portion of a shape.

In general, bridges supporting bridges are intended to form a coping on the final span of the column and then support the bridge deck. The conventional method of constructing such a pier coping part completes the final span of the pier pillar, and the crane continuously waits for the pier pillar bars to be exposed, while the rebar and formwork to be used for the coping portion with the crane are moved to the top of the column. Lifting is performed to assemble reinforcing bar and formwork at high altitude.

Accordingly, in the related art, the space inside the formwork is narrow, the safety of falling disasters, and the like are weak, and there is an unreasonable element in construction, in which a large crane must always exist for the import of materials.

In this pier construction process, the coping department's construction is delayed as the construction period gets longer, so shortening the process has a great meaning for early completion of the entire process. In addition, the rebar assembly of the coping part is a very complicated structure connecting the coping part reinforcement to the column reinforcement of the piers.If the construction is difficult due to the interference between the column reinforcing bar and the coping part reinforcement, the installation space must be bent to secure the installation space or adjust the spacing. It was difficult to secure quality.

In order to solve the above problems, the coping part reinforcing bar network of bridge piers is dried on the ground, and then lifted with a crane, and the coping part ground line is installed by mechanically connecting the coping part column reinforcement to the column reinforcing bar on the top of the column. Assembly method has been presented as Republic of Korea Patent No. 10-0547591.

Therefore, through this technique, structurally complex coping reinforcing steel bars were assembled on the ground, and lifted with cranes and installed on the piers to shorten the construction and greatly improve safety problems. The pier coping part is installed in a different structure according to the installation environment. The conventional formwork installation structure is fixed in a fixed shape, so that the pier coping part cannot appropriately respond to various sizes and shapes of the pier coping part, and accordingly, This deteriorates the work productivity, as well as the problem of limiting the service life of the formwork.

The present invention is to solve the conventional problems as described above, the object of the construction of the pier coping (coping), according to the size and shape of the coping part can be changed in variable wall inclination angle and height can be adjusted in various sizes and According to the present invention, it is possible to appropriately construct a pier coping portion of a shape, and accordingly, a formwork installation process is easily performed, thereby improving work productivity and improving a formwork for a pier, thereby extending the service life of the formwork.

In order to achieve the above object, the present invention, in the formwork system used for the construction of the pier coping portion,

A lower end is rotatably mounted on a hinge coupler of a support fixed on a pier, and a tilt adjustment is possible, and an upper surface of which forms a slope inclination support unit equipped with a sofit formwork;

An upper end rotatably connected to the rear of the formwork inclined support to support the load at the rear of the formwork inclined support;

A lower end of the brace is positioned and fixes the brace so that the position can be moved through the pin;

A circular formwork in which semi-circular members are joined together to form an inner space so as to surround a connection portion between the pier coping portion and the pier pillar; And

And a height adjustment mechanism having a plurality of screw jacks for adjusting the formwork inclination support and the support up and down, and the formwork tilt angle adjustment and height adjustment are made in accordance with the size and shape of the pier coping part. Provides a formwork system for piers.

In addition, the present invention preferably is the position adjustment table is made of a pair of straight steels fixed to the pier steel frame support and a gap therebetween, a plurality of holes are formed along the longitudinal direction, the gap between the steel The bottom of the brace is inserted into, and is fixed through the pin to provide a formwork system for piers, characterized in that configured to enable the adjustment of the fixed position of the brace.

And the present invention preferably the circular formwork is formed in the upper flange a plurality of long holes respectively in the circumferential direction, the lower wheel is mounted so that a plurality of wheels are rotatable, the wheels are formed in the circumferential direction on the pier pillar It is provided on the pier formwork system, characterized in that the position is movable in the circumferential direction of the pier pillar by being movable.

In addition, the present invention is preferably the height adjustment mechanism is mounted on a steel support, the lower end of which is fixed to the piers, the upper end to support the steel support holding the support to adjust the height of the support, formwork slope support and braces all It provides a formwork system for piers, characterized in that.

According to the present invention, when the construction of the pier coping part (coping), it is possible to adjust the inclination angle of the formwork inclined support according to the size and shape of the coping part, it is possible to adjust the height of the formwork in the vertical direction by using a height adjustment mechanism. In addition, by adjusting the size of the support and the circular formwork on which the formwork inclined support is mounted, it is possible to easily achieve the formwork installation process corresponding to the pier coping portion of various sizes and shapes.

Therefore, the work productivity of the formwork process can be greatly improved, and the formwork can be applied to a pier coping part of various sizes and shapes, thereby improving the formwork life.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

Pier formwork system 1 according to the present invention is a structure that is suitably used for the construction of the pier coping portion having a variety of sizes and shapes, as shown overall in FIG.

Pier column 10 is installed in the field to build a pier coping unit using the formwork system for piers (1) according to the present invention, first, the construction method of the pier pillar 10 will be briefly described.

The construction method of the pier pillar 10 to which the present invention is applied is to perform the foundation work to lay the foundation of the first pier pillar 10, and then construct the pier pillar 10 in accordance with the concrete casting plan thereon. In this case, the construction column (not shown) is formed in the pier pillar 10 in the middle, such construction joints are constructed so that the shear force is formed in a position as small as possible because there is a structural characteristic weak to the shear force.

In addition, when completing the final span by gradually constructing the pier pillars 10, concrete pouring of the final span is performed so that the upper end of the pier pillar reinforcement 12 is exposed to the upper side by approximately 60 cm. In addition, the upper end of the pier pillar reinforcing bars 12 is threaded to be screwed by the coupler 35 described later.

On the other hand, such a pier pillar reinforcement (12) is to be kept constant in the reinforcement spacing in the form of two rows of reinforcement of the outer and inner, during the concrete placement of the final span, for this purpose, the pier pillar reinforcement 12 A pier jig 15 having a plurality of holes into which 12 is fitted is fitted so as to maintain a constant gap between these pier pillar bars 12. In addition, the upper concrete surface of the pier pillar 10 to which the pier pillar reinforcement 12 is exposed is roughly formed through chipping or the like.

When the upper work of the pier pillars 10 is performed as described above, the main brackets 17 are fixed to the pier pillars 10 as shown in FIG. 1, and the spreader beam 20 made of a plurality of steel frames thereon. ) And install a plurality of scaffold 22 and hand rails 25 for the construction of the pier coping portion thereon to build a workshop.

Such a structure is shown in detail in FIGS.

On the other hand, the coping secondary reinforcing mesh 30 is assembled in a separate place from the pier pillar 10, such as the assembly method and process of the coping secondary reinforcing mesh 30 may be used by using a conventional reinforcing bar assembly method. Detailed description of the process will be omitted. Such coping secondary reinforcing mesh 30 is exposed on the lower side of the coping secondary reinforcing mesh reinforcing bars 32, such coping secondary reinforcing mesh reinforcing bars 32 are formed at the bottom of the threaded portion, as will be described later, When connected to the pier pillar reinforcement 12 by the coupler 35, it is to be screwed.

In addition, as described above, at the same time as the assembly work of the coping reinforcing steel net 30, the pier formwork system 1 according to the present invention is mounted on the upper part of the pier pillar 10 to form a pier coping part of various sizes and shapes.

Pier formwork system (1) according to the present invention has a formwork inclined support 40 that can adjust the inclination angle, such formwork inclined support (40) is a hinge coupling sphere of the support (45) disposed on the piers The lower portion of the 47 is rotatably mounted to allow tilt adjustment.

The support 45 has a structure to support the load of the formwork inclined support 40, the lower side of the circular formwork 60 surrounding the connection point connecting the bridge column reinforcement 12 and the coping reinforcing bar reinforcement 32 ) Is connected. In addition, the height adjustment mechanism 70 and the steel support 72 of the present invention is disposed on the outside of the circular formwork 60, and through this structure structurally in the spreader beam 20 fixed to the pier pillar 10 It is supported stably.

And such formwork inclined support 40 is not only possible to adjust the angle of inclination due to the hinge coupling structure of the bottom, it is mounted on the upper surface of the small formwork 42 to form the outer surface of the coping portion. Therefore, the formwork inclination support 40 is capable of adjusting the inclination angle, thereby automatically adjusting the inclination angle of the small formwork 42 mounted on the upper surface thereof, the shape of the bridge coping portion, specifically, the form of the lower surface of the coping portion The angle is adjusted accordingly.

A brace 50 is located at the rear of the formwork inclined support 40, and such a support 50 is connected to the backside of the formwork inclined support 40 so as to be rotatable, and the formwork support 40 is inclined. In the rear of the formwork to support the load of the inclined support 40. Therefore, the prop 50 is fixed so that the upper end is rotatable to the rear of the formwork inclined support 40 through the pin 52, the lower end of the plurality of position adjustment horizontally mounted on the spreader beam 20 It is fixed by 55.

The position adjusting table 55 is to fix the lower end of the brace 50 so that the position can be moved through the pin, such a position adjusting table 55 is a pair of straight steel 57a, as shown in FIG. 57b are mounted on the spreader beam 20 fixed on the piers in left, right, and front and rear directions. And the position adjustment table 55 is formed with a plurality of holes 58 along the longitudinal direction of the straight steels (57a, 57b), the pin (58) is fitted into the hole 58 to the brace ( 50) is inserted into the bottom.

The position adjusting table 55 is fitted with the lower end of the brace 50 into the gap between the straight steels 57a and 57b, and then the pin 59 toward the hole 58 side of the one straight steels 57a and 57b. ) Is inserted and the end of the pin 58 passes through the straight steel hole 58 opposite the brace hole (not shown), and then the locking clip 59a is inserted into the pin 59 to pin 59 Do not come out of this hole 58.

Therefore, since the position adjusting table 55 can fix the bottom fixing position of the brace 50 to be movable, as a result, it is possible to adjust the inclination angle of the form inclined support 40 that the brace 50 supports. .

And the present invention is a circular formwork 60 to form the inner space to form a semi-circular member (62a, 62b) to form the inner space to surround the connection portion of the pier coping portion and the piers in the lower side of the formwork slope support 40 It is provided. The circular formwork 60 is to surround the portion where the coping reinforcing steel reinforcing bar 32 and the pier column reinforcing bars 12 are connected to be made of concrete, as shown in Figures 6 and 7, The cylindrical space 65 is formed.

Such a circular formwork 60 has a plurality of long holes 66a are formed in the upper flange 66 in the circumferential direction, and a plurality of wheels 68 are rotatably mounted at the lower end thereof. Such circular formwork 60 has semicircular members 62a and 62b joined together to form a single round structure, each of which has a plurality of holes in its connecting flange 69 portion. 69a are formed to be integrally fixed through the bolts 69b, and a plurality of reinforcing plates 69c are attached to the outer surface thereof, respectively, and when the concrete is poured into the inner circular space, the structure can withstand this sufficiently. Is formed.

In addition, the circular formwork 60 is a structure in which the wheels 68 on the lower side thereof are positioned on the rail 68a formed in the circumferential direction on the fixing structure of the pier pillar, and the positional adjustment is possible in the circumferential direction thereof. ) Is roundly mounted to surround the upper end of the piers 10 in the circumferential direction.

And the present invention includes a height adjustment mechanism 70 having a plurality of screw jacks 74 for positioning the formwork slope support 40 and the brace 50 up and down on the pier pillar 10, the height The adjusting mechanism 70 is fixed to the steel support 72a, the lower end of which is supported by the pier pillar 10, and the upper end supports another steel support 72b that supports the support 45, and as a result, the support 45, the formwork slope support 40 and the brace 50 are all to hold the structure to adjust the height. This height adjustment mechanism 70 has a structure of a screw jack 74, such a screw jack 74 is mounted in the middle of the rotary handle 76, the height of the elevating by the rotary handle 76 The adjusting screw 78 is provided. In addition, a plurality of such screw jacks 74 are disposed around the support 45, and the support 45 is accurately leveled by supporting the lower portion of the support 45 at the same height.

Reference numeral 80 is a jig for adjusting the rebar spacing.

Pier formwork system 1 according to the present invention configured as described above when the construction of the pier coping portion (coping) in the upper side of the pillar column 10, inclination of the formwork slope support 40 according to the size and shape of the coping portion Mounting by adjusting the angle, and adjust the overall height of the formwork in the vertical direction using the height adjustment mechanism (70). In addition, the mold inclined support 40 is equipped with a small formwork 42 to provide a molding space corresponding to the outer contour of the coping portion 100, as shown in FIG.

In this state, the coping secondary reinforcement net 30 manufactured in a separate manufacturing site is lifted as a crane, and then fixed and seated on the inside of the stiff mold 42 as shown in FIG. 12 and the coping reinforcing bar reinforcing bar 32 are connected to each other through a coupler (35). As described above, when lifting the coping secondary reinforcing mesh 30, it is preferable to use a separately produced lifting sphere 90, as shown in Figure 8, such a lifting sphere 90 is a coping secondary reinforcing mesh 30 In order to prevent deformation at the time of lifting and to distribute the weight evenly, it is provided with the main beam 92 formed in the longitudinal direction corresponding to the length of the upper side of the coping reinforcing bar network 30, and the main beam Since the conventional connection of the coping secondary reinforcing bar 30 through the wire 94 to the 92 may be used, a more detailed description thereof will be omitted.

In this case, the lower reinforcing bar 32 of the coping secondary reinforcing bar 30 has a lower rebar spacing of the coping secondary reinforcing bar 30 through a jig 80 such as previously inserted into the pier column reinforcing bars 12. It is maintained at the same interval as the upper reinforcing bar of the pier pillar 10.

Therefore, as shown in FIG. 9, the pier pillar reinforcing rod 12 and the coping reinforcing steel mesh reinforcing bars 32 may be connected through the coupler 35, and the coupler 35 may have a cylindrical structure in which a female thread is formed. As having, the upper end of the pier pillar reinforcing bars 12 are screwed to the lower end, respectively, and the lower side reinforcing bar of the coping secondary rebar net 30 is screwed to the upper end. Therefore, due to such a screw coupling structure it is possible to improve the mechanical strength than the lap joint of the general rebar.

As such, when connecting the pier pillar reinforcement 12 and the lower side reinforcement 32 of the coping reinforcement net 30 using the coupler 35, the pier pillar reinforcement 12 is formed on the outer and inner sides of the circle. Since the lower reinforcement 32 of the coping secondary reinforcing mesh 30 also consists of two rows of reinforcement of the outer and inner sides, the outer row of reinforcing bars are easily reinforced using the coupler 35 from the outside. You can perform the connection operation. However, since the inner row reinforcing operation is not easily performed from the outside, as shown in FIG. 8, the opening pillars 37 are formed by connecting the pier column reinforcement 12 and a portion of the coping reinforcing steel reinforcing bar 32 somewhat shorter. Then, the worker enters the inside of the pier pillar reinforcing bars 12 through the opening 37, and connects the inner bars with each other using the coupler 35, and then comes out again through the opening 37 to the The opening 37 is finished with reinforcing bars.

As such, when the connection work between the pier pillar reinforcing rod 12 and the lower reinforcing bar 32 of the coping reinforcing steel mesh 30 is completed, the circular formwork 60 of the present invention is connected to the pier pillar reinforcing rod 12 and the coping reinforcing bar. Construct so as to surround the connection with the lower reinforcing bar 32 of the net (30). In this case, since the circular formwork 60 consists of two semi-circular members 62a and 62b, the connection between the pier column reinforcement 12 and the lower reinforcement 32 of the coping reinforcing mesh 30 is enclosed. It is assembled to be cheap, and then assembled by engaging the connecting flange 69 through the bolts 69b. Then, the connecting flange 69 is connected to the lower end of the support 45, that is, the support 45 on the upper side, that is, the support 45 to rotatably connect the lower end of the formally inclined support 40 by bolts (not shown). To this end, the circular formwork 60 has a plurality of long holes (66a) formed in the upper flange 66 in the circumferential direction, the wheel 68 is mounted on the lower surface of the circumference of the pier pillar (10) When assembled on the lower surface of the support 45 by being able to move on the formed rail 68a, the assembly tolerance is easily eliminated and assembled.

When the circular formwork 60 is assembled in this way, the small formwork 42 is disposed on the upper side of the support 45, and the circular formwork 60 is disposed on the lower side of the support 45, whereby a pier pillar ( 10) Forming work is done in a state surrounding the top of the. Therefore, in the next process, the concrete is poured into the coping rebar net 30 to form a pier coping part.

When the concrete curing of the pier coping part is completed, the formwork slope support 40, the brace 50, the position adjuster 55, the circular formwork 60, the height adjustment mechanism 70 and the various working scaffold 22 and the handle rail ( 25) and the steel support 45 is completed to complete the pier coping portion.

In this process, the present invention, when the construction of the pier coping part (coping), according to the size and shape of the coping part 100 can be variously adjusted the inclination angle of the formwork inclined support 40, sofit formwork 42 installed Work can be done very easily. In addition, the height of the formwork can be adjusted in the vertical direction using the height adjusting mechanism 70 according to the structure of the pier coping part, and in this case, when the height of the formwork is adjusted using the height adjusting mechanism 70, the support ( By adjusting the size of the circular formwork (60) connected to the bottom of the 45) it can enclose the connection of the lower reinforcing bar 32 and the bridge column reinforcement (12) of the coping secondary reinforcing mesh 30 of various sizes and shapes Corresponding to the pier coping part can easily achieve the formwork installation process.

Therefore, according to the present invention, not only can greatly improve the work productivity of the formwork process, but also the mold can be easily applied to the pier coping portions of various sizes and shapes, thereby achieving an improved effect of extending the life of the formwork. .

Although the present invention has been described in detail with reference to the accompanying drawings, the present invention is not limited to such a specific structure. Those skilled in the art will be able to variously modify or change the embodiments of the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. Nevertheless, it will be apparent that all such modifications or design modifications to such simple embodiments will clearly fall within the scope of the present invention.

1 is a cross-sectional view showing a structure in which the pier formwork system according to the present invention is mounted on a pier pillar;

Figure 2 is a perspective view of the pier coping formwork using the pier formwork system according to the present invention;

3 is a top perspective view of the installations installed to mount the pier formwork system according to the present invention to the pier pillar;

Figure 4 is a top perspective view showing the installations installed to mount the pier formwork system for piers according to the present invention;

Figure 5 is a side perspective view of the hypothesis installed to mount the formwork system for piers in accordance with the present invention to the column pillar;

Figure 6 is a perspective view showing a circular formwork provided in the formwork system for piers according to the present invention;

7 is an exploded perspective view of a circular formwork provided in the formwork system for piers according to the present invention;

8 is a perspective view showing a lifting state of the coping portion reinforcing bar used in the formwork system for piers according to the present invention;

FIG. 9 is an explanatory diagram for explaining a connection process between a column pillar reinforcing bar and a coping reinforcing bar reinforcing bar made in a pier formwork system according to the present invention.

Description of the Related Art

1 ...... Formwork system for piers according to the present invention

10 ..... Pier Pillars 12 ..... Pier Pillars Rebar

15 ..... Pier jig 17 ..... Main bracket

20 ..... Spreader Beam 22 ..... Scaffolding

25 ..... Hand Rail 30 ..... Coping Boo Rebar

32 ..... coping vice rebar mesh rebar 35 ..... coupler

40 ..... Formwork Slope Support 42 ..... Sofit Formwork

45 ..... Support 47 ..... Hinge splice

50 ..... Prop 52 ..... Pin

55 ..... Positioning bar 57a, 57b ..... straight steel

58 ..... Hole 59 ..... Pin

59a .... lock clip 60 ..... circular formwork

62a, 62b .... semicircular members 65 ..... cylindrical space

66 ..... Top Flange 66a ..... Longitudinal

68 ..... wheel 69 ..... connection flange

69a .... multiple holes 69b ..... bolts

69c .... gusset 70 ..... height adjustment

72a, 72b .... steel support 74 ..... screw jack

76 ..... rotary handle 78 ..... height adjustment screw

80 ..... jig 90 ..... salvage

92 ..... main beam 94 ..... wire

100 ..... Coping

Claims (4)

In the formwork system used for the construction of the pier coping portion, A lower end is rotatably mounted on a hinge coupler of a support fixed on a pier, and a tilt adjustment is possible, and an upper surface of which forms a slope inclination support unit equipped with a sofit formwork; An upper end rotatably connected to the rear of the formwork inclined support to support the load at the rear of the formwork inclined support; A lower end of the brace is positioned and fixes the brace so that the position can be moved through the pin; A circular formwork in which semi-circular members are joined together to form an inner space so as to surround a connection portion between the pier coping portion and the pier pillar; And And a height adjustment mechanism having a plurality of screw jacks for adjusting the formwork inclination support and the support up and down, and the formwork tilt angle adjustment and height adjustment are made in accordance with the size and shape of the pier coping part. Pier formwork system. The method of claim 1, wherein the position adjuster is composed of a pair of straight steels fixed to the bridge steel support and the gap formed therebetween, a plurality of holes are formed along the longitudinal direction, the gap between the steel The pier formwork system, characterized in that the bottom of the brace is inserted, fixed through the pin is configured to enable adjustment of the fixed position of the brace. The circular formwork of claim 1, wherein a plurality of long holes are formed in the upper flange in a circumferential direction, and a plurality of wheels are rotatably mounted in the lower end thereof, and the wheels are formed on a rail formed in a circumferential direction on a pier column. The formwork system for piers, characterized in that the position can be adjusted in the circumferential direction of the piers pillars by being movable in. According to claim 1, wherein the height adjustment mechanism is mounted on a steel support, the lower end of which is fixed to the piers, the upper end is to support the steel support holding the support to adjust the height of the support, formwork inclined support and braces all A pier formwork system characterized by the above-mentioned.

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