JPH047429B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] Industrial Application Field The present invention relates to a beam formwork device with shoring.

Conventional technology In the past, mobile shoring and beam formwork were integrated,
During dismantling, lower the upper end of the beam formwork to the bottom of the beam, then
Some of the supports were moved and lifted to the upper floors for repeated use.

Problems to be Solved by the Invention However, with the above-mentioned beam formwork device integrated with shoring, the upper end of the beam form must be lowered to the bottom of the beam. The difference is large, which not only complicates the assembly and disassembly of the formwork, but also causes drawbacks such as the vertical operation mechanism of the shoring etc. becoming complicated and large.

In addition, the above conventional beam formwork equipment requires a separator to support the lateral pressure of concrete.
There were also other drawbacks, such as the installation work being time consuming.

The present invention was made in order to eliminate the drawbacks of the conventional beam formwork equipment with shoring, and its purpose is to quickly and accurately perform assembly and disassembly work, and to improve work efficiency and accuracy. An object of the present invention is to provide a beam formwork device with shoring, which is improved and can reduce costs in terms of construction and materials.

[Structure of the Invention] Means for Solving the Problems The beam formwork device with shoring of the present invention has a bottom formwork support section in the center, and side formwork support sections are provided on both sides of the bottom formwork support section. A beam support frame formed by forming a side formwork drop groove between the supporting parts is integrally attached to the upper part of the movable shoring, and the bottom formwork is attached to the above-mentioned bottom formwork support part, and the above-mentioned side formwork support Attach the side formwork to the side formwork support fittings that are removably attached to the section, and when demolding, remove the side formwork support fittings from the beam support frame and drop the side formwork into the drop groove to store it. It is characterized by the fact that it is made to do so.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a pipe support, and an underframe 2 is provided at the bottom of the pipe support, and casters 3 allow the pipe support to move freely on the slab. A jack 4 is attached to the underside of the underframe 2, and is adapted to raise and lower the movable shoring made of the pipe support 1, the underframe 2, etc.

A beam support frame 5 is attached to the upper part of the pipe support 1.

As is clear from FIG. 3, the beam receiving frame 5 has a bottom formwork support part 5a in its center, and a beam bottom form 6 is set on the upper surface thereof.

Side formwork support parts 5b are provided on both sides of the bottom formwork support part 5a, and these support parts 5a, 5
A side formwork falling groove 5c is formed between the sides b.

As is clear from FIG. 4, the upper frame 5b' of the side formwork support part 5b is formed in a channel shape, into which the side formwork support fitting 7 is slidably inserted in the direction of the arrow. It is designed to be fixed by inserting a pin 8.

Reference numeral 9 denotes a beam side formwork, and the side formwork support fitting 7
It is set on the support part 7a of the support part 7a, and its outer surface is brought into contact with the receiving part 7b.

A form tie 10 is detachably attached to the beam side formwork 9. The form tie 10 is tightened to a single pipe 11, a clamp 12, etc. attached to the outer surface of the receiving part 7b of the side formwork support fitting 7, and the beam side formwork 9 can be fixed without a separator. ing.

A reinforcing frame 13 having a truss structure is provided on the side formwork support portion 5b, and is designed to receive the load during concrete pouring.

As is clear from FIG. 1, end bottom forms 14 are pivotally attached to both ends of the beam support frame 5, and can be removed by rotating as shown in the imaginary line. .

Incidentally, if the bottom form frame 14 for the end portion is set in an appropriately inclined state using the above-mentioned rotating structure, it is also possible to form a haunch portion of the beam.

Furthermore, the beam support frame 5, underframe 2, etc. can be configured to be splittable in the longitudinal direction so that they can accommodate any beam length.

Next, a construction method using the apparatus of the above embodiment will be explained.

The beam formwork device with shoring configured as described above is set in the state shown in FIGS. 1 and 2, and the PC or semi-PC slab plate 15 is placed on the upper end surface of the beam side formwork 9. Prefabricated reinforcing bars are set in the beam forms 6 and 9, and concrete is poured.

When demolding the formwork, first remove the clamp 12 and single tube 11, remove the form tie 10, pull out the pin 8, and then remove the side formwork support fittings 7 by sliding them in the direction of the arrow in Figure 3. , beam side formwork 9
loses support from the support portion 7a and falls into the side formwork falling groove 5c of the beam receiving frame 5.

Next, when the jack 4 is operated to lower the underframe 2, the caster 3 touches the floor and the pipe support 1, beam support frame 5, etc. are also lowered, and the beam bottom form 6 is removed from under the beam. be done.

At this time, the upper end of the beam side formwork 9, which has fallen into the bottom formwork drop groove 5c, has also been lowered to the position below the beam, so there is no need to lower the shoring, formwork, etc. any further. In this state, the beam formwork device with main support can be moved freely on the slab version 15, and the lifting weight can be diverted to the upper floor from a dead hole or the like.

In addition, the side formwork support fitting 7 of the above embodiment and its support part 7a can be configured separately, and the support part 7a can be detachably set at an appropriate height position in the side formwork drop groove 5c. By doing so, the height of the beam side formwork 9 can be freely adjusted and set, and can be adapted to various beam configurations.

Moreover, if a plurality of holes for the pins 8 are made at appropriate intervals in the side formwork support fitting 7, the side formwork support fitting 7
can be set to slide freely within the width of the side formwork falling groove 5c, and can be adapted to correspond to various beam widths.

[Effects of the invention] (1) Since the beam formwork and the shoring are integrally constructed, the efficiency of work such as assembling, dismantling, and moving the formwork is greatly improved.

(2) The beam-side formwork is constructed so that it is accommodated by falling into the groove formed in the beam support frame.
Formwork materials can be freely transported by simply jacking down the shoring to a minimum.

(3) Beam side formwork can be assembled without separators.

[Brief explanation of drawings]

Fig. 1 is a side view of the beam formwork device with shoring of the present invention, Fig. 2 is a sectional view taken along the line of Fig. 1, and Fig. 3 is an enlarged sectional view of the beam receiving frame and beam formwork portion. FIG. 4 is a perspective view showing how the side formwork support fittings are attached. 1... Pipe support, 2... Underframe, 3... Caster, 4... Jacket, 5... Beam support frame, 5a...
Bottom formwork support part, 5b... Side formwork support part, 5b'... Upper frame, 5c... Side formwork falling groove, 6... Beam bottom formwork,
7... Side formwork support fittings, 8... Pins, 9... Beam side formwork,
10... Form tie, 11... Single tube, 12... Clamp, 13... Reinforcement frame, 14... Bottom formwork for end.

Claims (1)

[Claims] 1 A beam support frame consisting of a bottom formwork support part in the center, side formwork support parts provided on both sides, and a side formwork drop groove formed between both support parts is used as a mobile shoring structure. The bottom formwork is attached integrally to the upper part, and the bottom formwork is attached to the bottom formwork support part, and the side formwork is attached to the side formwork support bracket that is detachably attached to the side formwork support part, and when demolding. A beam formwork device with shoring, characterized in that the side formwork supporting metal fittings are removed from the beam receiving frame, and the side formwork is dropped into the drop groove and accommodated therein.