KR200241134Y1 - A spring type steel supporter for making a flash board in bridge - Google Patents

Abstract

The present invention is to make the formwork for installing the slab on the top of the pier to vary the length to correspond to the different size piers, and after the formwork is installed the formwork frame is fixed by the elastic force of the spring so that the deformation of the support frame A spring type steel support frame for installing steel slab formwork that is prevented and easy to install and dismantle, which is installed between two steel bridge steel boxes (5) in the upper part of the pier, and is provided with steel formwork supporting frames of cantilever section at both ends In the steel support frame for manufacturing, the first formwork steel support frame 30 formed in the form of a square pipe, the first sliding control plate 35 protruding in the longitudinal direction on both sides of the first formwork steel support frame 30, Inserted into the inner side of the first formwork steel frame 30 and moved in the longitudinal direction The second formwork steel frame 40, the second sliding control plate 45 is formed protruding in the longitudinal direction on both sides of the second formwork steel frame 40, the inner end of the first formwork steel frame 30 And a spring 50 connected to one end of each of the second formwork steel support frame 40 to apply an elastic force, and the first formwork steel support frame 30 and the second formwork steel support frame 40 are combined and installed thereon. Square wood 60, characterized in that consisting of plywood formwork 70 is located on the top of the square wood (60).

Description

Steel spring frame for steel slab formwork installation {A spring type steel supporter for making a flash board in bridge}

The present invention relates to a steel support frame for formwork installation, in particular, in the manufacture of the formwork for installing the slab on the top of the pier is variable in length to cope with different sizes of piers after the formwork frame is installed the spring spring elastic force It is related with the spring-type steel support frame for the steel bridge section slab formwork installation to prevent the deformation of the support frame to be fixed by the easy to install and dismantle.

The slab installed on the upper part of the pier is installed by placing concrete slab after installing slab base and deck plate using wood. At this time, the slab pedestal using wood has a problem that costs a lot because the facilities for reinforcing the pedestal to be installed in order to support the weight of the concrete.

When the deck plate is used, there is a problem in that maintenance such as future maintenance and safety check is impossible due to the sealing of the concrete surface.

In addition, in order to install a slab in a bridge having a different width, each has to produce a new formwork frame every time there was a problem that a lot of time is costly.

Steel formwork frame to solve this problem has been disclosed in Utility Model Application No. 2000-35427. The above technique is configured to set the width of the formwork frame in such a manner as to fix the bolt in the holes formed at regular intervals. However, since the holes for fixing the bolts are formed at regular intervals, and when it is necessary to set the intermediate length of the hole intervals, there is a problem in that the exact width cannot be set as in the prior art.

The present invention is to solve the above problems, the length is continuously variable so that the slab can be manufactured in the pier having a different width, the steel bridge to prevent deformation of the support frame by the elastic force applied by the spring after installation Spring-type steel support frame for section slab formwork is provided.

1 is a front view showing the configuration of an embodiment of a spring-type steel support frame for formwork installation according to the present invention.

FIG. 2A is a detail view of portion A of FIG. 1. FIG.

2B is an exploded perspective view of FIG. 2A;

3 is a detail view of the portion B of FIG. 1.

<Brief description of symbols for the main parts of the drawings>

5: steel steel box 10: first support frame

30: the first formwork steel frame 40: the second formwork steel frame

50: spring 60: square wood

70: plywood formwork 100: second support frame

110a: first angle 110b: second angle

120: turnbuckle

Figure 1 is a front view showing the configuration of an embodiment of a formwork spring-type steel support frame according to the present invention, Figure 2a is a detailed view of the portion A of Figure 1, Figure 2b is an exploded perspective view of Figure 2a, the upper part of the piers In the steel support frame for slab manufacturing installed in the two steel bridge steel box (5), protruding in the longitudinal direction on both sides of the first formwork steel support frame 30, the first formwork steel support frame (30) formed in the form of a rectangular pipe The first sliding control plate 35 is formed, the second formwork steel support frame 40, which is inserted into the inside of the first formwork steel support frame 30 and moves in the longitudinal direction, the upper portion of the second formwork steel support frame 40 The second sliding control plate 45 protruding in the longitudinal direction on both sides, respectively, is connected to the inner end of the first formwork steel frame 30 and one end of the second formwork steel frame 40, respectively. A spring 50 for applying an elastic force, the first formwork steel support frame 30 and the second formwork steel support frame 40 are combined and installed in the upper square wood 60, the upper portion of the square wood 60 It is shown that it consists of plywood formwork 70 which is located.

FIG. 3 is a detailed view of the portion B of FIG. 1, in which a steel formwork frame of a cantilever section is vertically attached to an outer side surface of the steel bridge steel box 5 and a rotating shaft is formed at an upper end thereof. ), A second angle 110b having one end connected to the rotation axis of the first angle 110a, a fall preventing hand rail 150 vertically attached to an end of the second angle 110b, and the first and second ends. It is shown that the second angle 110b is composed of a turnbuckle 120 which is connected to the opposite side of the portion to which the second angle 110b is coupled to set the horizontal angle of the second angle 110b.

Hereinafter, the present invention will be described with reference to the drawings.

Steel bridge steel box 5 is located in the upper part of the bridge, the width of the bridge is varied by the road designed according to the conditions of the river and the traffic on which the bridge is installed, the steel bridge steel box installed in each bridge has a different width. . Therefore, the slab installed in the upper part of the pier also has to be changed accordingly according to the length of the slab fabrication frame must be corresponding to the width change of the pier when the bridge slab fabrication.

After the steel bridge steel box 5 is positioned in the upper part of the pier, the cantilever section steel formwork frame is installed on the outer side of each steel bridge steel box 5, the horizontal angle of which is adjusted by the turnbuckle 120.

An inner side of the first formwork frame 30 and the one end of the second formwork frame 40 is connected to the spring 50 to apply an elastic force, the elastic force of the spring 50 is the first formwork frame By applying to the 30 and the second formwork steel frame 40, respectively, the first and second formwork steel frame 30, 40 is moved in the opposite direction to each other.

In this state, when the first and second formwork frames 30 and 40 are sandwiched between the steel bridges 5, the spring 50 is compressed, and the first and second formwork frames 30 and 40 are compressed. Is located in the middle of the steel bridge steel box (5). At this time, the first and the second formwork steel frame 30, 40 by the elastic force of the spring 50 is to maintain the installation position continuously.

After the first formwork support frame 30 and the second formwork support frame 40 are positioned, the first and second clamp plates 45a and 45b may be replaced with the first formwork support frame 30 and the second formwork support frame ( Bolt each to the ends of 40). In this case, the first and second clamp plates 45a and 45b are positioned to overlap each other in a rectangular flat plate, to prevent the square wood 60 from moving in the longitudinal direction, and the upper surface of the steel bridge steel box 5. The upper surface of the first formwork steel support frame 30 and the second formwork steel support frame 40 is parallel.

After the first and second clamp plates 45a and 45b are fixed, the square timber 60 is positioned on the first formwork 30 and the second formwork 40, and the square timber 60 The lower surface of the plywood formwork (70) is placed in close contact with the top of the).

The first sliding control plate 35 and the second sliding control plate 45 formed on the first formwork steel support frame 30 and the second formwork steel support frame 40 are separated from the square wood 60 laterally. To prevent them.

At both ends of the steel bridge steel box 5, as shown in FIG. 3, steel formwork receiving frames 100 of the cantilever section are respectively installed. The horizontal angle of the second angle 110b is determined by the degree of adjustment of the turnbuckles 120 installed at the respective ends of the first angle 110a and the second angle 110b. At this time, the horizontal angle of the second angle (110b) is determined by the lower shape of the slab to be installed.

A plurality of square pipes 130 are installed and fixed at right angles to the longitudinal direction of the second angle 110b at the upper portion of the second angle 110b, and a steel plate 140 is fixedly installed at the upper portion of the square pipe 130. . The upper surface of the steel sheet 140 preferably coincides with the upper ends of the plywood formwork 70.

According to the present invention configured as described above, since the width of the support frame of the formwork used when manufacturing the slab installed in the upper part of the pier is continuously variable, there is an effect that can be applied to all piers having different widths.

In addition, even after the width of the support frame is set in accordance with the width of the pier has the effect of preventing deformation of the support frame by the square wood and the spring.

Claims (1)

In the steel support frame for slab manufacturing is installed between the two steel bridge steel box (5) of the upper part of the pier and the steel formwork support frame of the cantilever section at both ends, the first formwork steel support frame (30) formed in the form of a square pipe A first sliding control plate 35 protruding in the longitudinal direction on both sides of the first formwork frame 30, and a second inserted into the first formwork frame 30 and moving in the length direction; Formwork steel support frame 40, the second sliding control plate 45 protruding in the longitudinal direction on the upper both sides of the second formwork steel support frame 40, the inner end and the second end of the first formwork steel support frame 30 After the spring 50, which is connected to each end of the formwork steel frame 40 to apply an elastic force, the first formwork steel support frame 30 and the second formwork steel support frame 40 are combined Steel frame section for installing steel bridge section slab formwork, characterized in that consisting of plywood formwork (70) located on the top of the square timber (60), the rectangular timber (60).