JPH042379B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a steel deck assembly method for assembling a steel deck used as a floor member of a bridge or the like.

[Conventional technology]

As shown in Figure 3, steel deck slabs used as floor members for bridges, etc., have a plurality of U-beams b... are attached in parallel by welding, and the other side of this deck plate a faces upward to form a roadway or sidewalk.

Such a steel deck plate has a plurality of parallel marking lines on one side of the deck plate a, and U-shaped steel b... are arranged along these marking lines, and these U-shaped steels b...
The side edges of the shaped steel b... are fixed to the deck plate a by welding and assembled.

However, since the long U-shaped steel b... generally has some degree of flexure, the U-shaped steel is simply placed on the deck plate a.
It is difficult to align the entire length of the U-shaped steel with the marking line by simply placing the U-shaped steel b...; therefore, in the past, after placing the U-shaped steel b... on the deck plate a, Use a hammer or crowbar to partially shift the U-shaped steel b... by hand from one end to match the marking line, and temporarily fix it by welding. It is applied sequentially over the sides so that the entire U-shaped steel is aligned with the marking line. Furthermore, at this time, some side edges of U-shaped steel b may be floating above deck plate a, so in such parts, as shown in Figure 4, the U-shaped steel b should be straddled. A U-shaped jig c is temporarily fixed to a deck plate a by welding, a wedge d is driven between this U-shaped jig c and the U-shaped steel b, and the U-shaped steel b is pressed.
As a result, so-called skin alignment is performed so that the gap between the side edge of U-shaped steel b and deck plate a is 0.5 mm or less, and in this state, the side edge of U-shaped steel b is welded to deck plate a. There is.

[Problem that the invention seeks to solve]

In this way, in the past, the alignment and texture of U-beams were all done manually, which required a great deal of labor and time for assembly, resulting in a significant drop in work efficiency. That is the reality. This invention aims to solve these problems.

[Means for solving problems]

In order to solve these problems, this invention includes a base, a gate-shaped frame provided on the base so as to be movable along its longitudinal direction, and a pressure drive machine supported by the gate-shaped frame. A steel deck assembly device is constituted by a presser beam that is lifted and lowered and a plurality of regulating protrusions attached at regular intervals to the lower surface of the presser beam, and a deck plate is placed on the base, Furthermore, a plurality of U-shaped steels are placed in parallel on the deck plate along its longitudinal direction, and in this state, the gate-shaped frame is run at a constant pitch along the longitudinal direction of the deck plate, and each At each pitch, the presser beam is lowered by the pressure drive machine, and as it is lowered, the regulating protrusion enters between the U-shaped steels and presses the U-shaped steels to regulate the position of the U-shaped steels. The U-shaped steel is temporarily fixed to the deck plate in this state.

[Effect]

As the presser beam descends, the alignment protrusions enter between the U-beams, allowing the U-beams to be aligned with the deck plate.
By pressing the shaped steel, the side edges of the U-shaped steel are aligned with the deck plate.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, reference numeral 1 denotes a base of a steel deck assembly apparatus, and running rails 2, 2 are attached to both edges of the upper surface of the base 1 along its longitudinal direction. A gate-shaped frame 3 is provided on the upper surface side of the base 1, and this gate-shaped frame 3 has wheels 5 at both ends that are linked to a motor (not shown). As a result, the gate-shaped frame 3 moves along the longitudinal direction of the base 1 in response to activation of the motor.

A presser beam 6 is provided inside the gate-shaped frame 3, and this presser beam 6 is supported so as to be able to rise and fall via a pair of hydraulic cylinders 7, 7 as pressure drives attached to the gate-shaped frame 3. Guide rollers 8, 8 are attached to both ends of the presser beam 6, and these guide rollers 8, 8 are in rolling contact with guide rails 9, 9 attached to the support sections 3a, 3a of the portal frame 3. A plurality of regulating protrusions 10 are detachably attached to the lower surface of the presser beam 6 at regular intervals by bolts. In addition, 11, 11 is the gate type frame 3
It is a reaction force receiver that prevents floating.

Therefore, when assembling a steel deck, first a deck plate a is placed on the base 1, and then a plurality of U-beams b... are placed in parallel on top of the deck plate a along its longitudinal direction. Place it.

Under such conditions, the portal frame 3 is
For example, from one end side to the other end side of the shaped steel b...
Run sequentially at 1m pitches. Then, at each pitch, the presser beam 6 is lowered via the hydraulic cylinders 7, with the gate frame 3 stopped. Along with this descent, the regulating protrusion 10
... gradually enters between each of the U-shaped steel b..., and U-shaped steel b... shifts accordingly and is regulated to match the marking line of deck plate a, and then U-shaped steel b... is pressed by the presser beam 6, and when the side edges of the U-beams b are floating above the deck plate a, the skin alignment is performed. Then, an operator welds the side edge of the U-shaped steel b... in the portion where the positioning and skin alignment has been performed in this way to the deck plate a using a welding device (not shown) mounted on the portal frame 3, and temporarily fixes it. . Thereafter, the presser beam 6 is raised, the portal frame 3 is moved to the next pitch position, and the same operation is repeated again at that pitch position.

By repeating this operation sequentially for each pitch position, the entire length of each U-shaped steel b... is temporarily fixed so that it precisely matches the marking line, and then each U-shaped steel By completely welding and fixing parts b to the deck plate a using, for example, an automatic welding machine, the assembly of the steel deck is completed.

In addition, if the standard size of U-shaped steel or the width of the interval between U-shaped steel has changed, remove the regulating protrusion from the presser beam and replace it with a regulating protrusion that corresponds to the size. In addition, by attaching the adjusting protrusions to the presser beam at intervals corresponding to the interval width, it is possible to accommodate the change.

〔Effect of the invention〕

As explained above, according to the present invention, the positioning and alignment of the U-beam steel to the deck plate can be automatically performed without requiring manual labor, and therefore the steel deck slab can be assembled easily and efficiently. be effective.

[Brief explanation of drawings]

FIG. 1 is a front view of a steel deck assembly device used in an embodiment of the present invention, FIG. 2 is a schematic plan view, FIG. 3 is a perspective view of the steel deck, and FIG. 4 is a conventional It is a front view showing skin matching means. 1... Base, 3... Portal frame, 6... Presser beam, 7... Hydraulic cylinder (pressure drive machine),
10...Regulation projection, a...Deck plate, b...
...U-shaped steel.

Claims (1)

[Claims] 1. A base, a gate-shaped frame provided on the base so as to be movable along its longitudinal direction, a presser beam supported by the gate-type frame and lifted and lowered by a pressure drive machine, and the lower surface of the presser beam. A deck plate is placed on the base of this assembly device, and a deck plate is placed on the deck plate along its longitudinal direction. A plurality of U-beams are placed in parallel with each other, and in this state, the portal frame is run along the longitudinal direction of the deck plate at regular pitches, and at each pitch, the presser beam is moved by the pressure drive machine. By lowering the U-shaped steel, the regulating protrusion enters between the U-shaped steel and presses the U-shaped steel to regulate the position of the U-shaped steel. In this state, temporarily attach the U-shaped steel to the deck plate. A steel deck assembly method characterized by stopping.