JP6909000B2 - Heavy equipment support mechanism - Google Patents

Description

The present invention relates to a girder-shaped heavy machine support mechanism that is hung between a pair of beams to support a moving heavy machine in a building demolition work.

Buildings such as buildings are dismantled using heavy machinery. From the viewpoint of ensuring the safety when heavy machinery moves in the building, the demolition work has conventionally been carried out with the beams and floors (or slabs) under the floor reinforced by a large number of support works. However, the work of installing a large number of support works is complicated and disadvantageous in terms of cost.

Therefore, instead of installing a large number of support works, a method of distributing the weight of heavy machinery on the beam by using a girder type support device has been proposed. For example, Patent Document 1 proposes to mount a girder frame having one side of a web of H-shaped steel as a mounting surface on a beam and mount an excavator on the mounting surface. A large number of steel bars are welded to the mounting surface to ensure the movement of the excavator machine, and by reinforcing from the underside of the girder frame with H-shaped steel auxiliary frames, tie rod rods, and reinforcing plates. The support strength is increased.

JP-A-2015-48586

In the girder support of Patent Document 1, the heavy machine moves on the web of the H-section steel. However, the edges of the flanges project upward at both ends of the web in the width direction, limiting the movement of heavy machinery. It is also difficult to connect a plurality of girder frames, and even if they are connected, it is difficult to move heavy machinery beyond the edge of the flange. It is also necessary to use H-section steel with a web wide enough to move heavy machinery. However, such H-section steel is not easily available and lacks versatility.

An object of the present invention is to provide a girder-shaped heavy machine support mechanism having a high degree of freedom of movement of the heavy machine and high versatility.

One aspect of the present invention is a girder-shaped heavy equipment support mechanism that is bridged between the pair of beams in order to support the moving heavy equipment in the demolition work of a building having at least a pair of beams.
The heavy machinery support mechanism includes a pair of girder steels arranged with a first interval and a plurality of joist steels bridged between the pair of girders with a second interval.
The pair of girder-shaped steel materials relates to a heavy machine support mechanism, which is a pair of shaped steels arranged so that the webs face each other, or a pair of steel pipes arranged in the width direction.

According to the girder-shaped heavy machine support mechanism according to the present invention, on a pair of girder-shaped steel materials (specifically, on a flange of a shaped steel or on a steel pipe) and on a joist steel bridged between a pair of girder-shaped steel materials. Heavy equipment can move. In addition, it is easy to connect a plurality of support mechanisms. Therefore, the degree of freedom of movement of heavy machinery can be increased. Further, since it is easy to adjust the size and / or spacing of the girder steel material and the joist steel, the girder steel material and the joist steel having a size that is easily available can be used, and the versatility is high.

It is a top view for demonstrating the state in which the heavy equipment support mechanism which concerns on one Embodiment of this invention is bridged between beams. FIG. 5 is a plan view of an enlarged region II of FIG. 1 in the case of using an H-section steel having an outer size of 250 mm × 250 mm in cross section. FIG. 2 is a cross-sectional view taken along the line III-III of FIG. FIG. 3 is a cross-sectional view of an H-section steel having an outer size of 400 mm × 400 mm in cross section corresponding to FIG. It is a top view which shows a part example of the heavy machine support mechanism in the case where the H-shaped steel with the outer diameter size of 300 mm × 300 mm of the cross section is used as a shaped steel, and the square steel pipe of width 125 mm × height 125 mm is used as a joist steel. .. FIG. 5 is a cross-sectional view taken along the line VI-VI of FIG. Top view showing some other examples of the heavy machinery support mechanism when an H-shaped steel having an outer diameter size of 300 mm × 300 mm in cross section is used as a shaped steel and a square steel pipe having a width of 125 mm × a height of 125 mm is used as a joist steel. Is. FIG. 7 is a cross-sectional view taken along the line VIIb-VIIb of FIG. 7a. It is an enlarged plan view which shows the region VIIIa of FIG. 1 schematically. 8 is a cross-sectional view taken along the line VIIIb-VIIIb of FIG. 8b. It is a schematic side view of the joist steel provided with the suspension member. 9 is a cross-sectional view taken along the line IXb-IXb of FIG. 9a. 9 is a schematic plan view of the suspension piece in FIGS. 9a and 9b. It is a schematic view of the state where the heavy equipment support mechanism provided with the suspension members of FIGS. 9a and 9b is suspended by a wire from the joist steel, as viewed from the cross section of the joist steel in the width direction. It is a schematic view of the state where the heavy equipment support mechanism provided with the suspension members of FIGS. 9a and 9b is suspended by a wire from the joist steel, as viewed from the side surface side of the joist steel. 9 is a schematic view of a state in which a heavy machine support mechanism provided with a suspension member of FIGS. 9a and 9b is suspended by a heavy machine (lifting state) and viewed from a cross section of the joist steel in the width direction. It is a schematic side view of the joist steel provided with the suspension member of another example. 10a is a cross-sectional view taken along the line Xb-Xb of FIG. 10a. It is a schematic side view for demonstrating the state in which the heavy equipment support mechanism which concerns on another Embodiment of this invention is connected in the upper floor and the lower floor. 11 is an enlarged schematic plan view of a connecting portion between a heavy equipment support mechanism and a slope mechanism on the upper floor in FIG. 11 and its periphery. It is a side view which shows typically the joist steel of the slope mechanism in FIG. FIG. 2 is a cross-sectional view taken along the line XIV-XIV of FIG. 11 is an enlarged schematic side view of the lower floor side end of the slope mechanism and its periphery in FIG. 11. FIG. 15a is a plan view schematically showing a state in which a stopper is arranged on the shaped steel in FIG. 15a. It is a schematic plan view for demonstrating another embodiment of the connection part of the heavy equipment support mechanism and the slope mechanism of the upper floor. 16a is a cross-sectional view taken along the line XVIb-XVIb of FIG. 16a. 16a is a cross-sectional view taken along the line XVIc-XVIc of FIG. 16a. It is a top view which shows typically the state in which the heavy equipment support mechanism is laid on the floor of the 1st floor of a building having a basement floor.

The heavy equipment support mechanism according to the embodiment of the present invention is a girder-shaped heavy equipment support mechanism that is bridged between a pair of beams in order to support the moving heavy equipment in the demolition work of a building having at least a pair of beams. The heavy machinery support mechanism consists of a pair of girder-shaped steels lined up at intervals (first interval), and a plurality of joist steels laid at intervals (second interval) between a pair of girder-shaped steel materials. To be equipped. The pair of girder-shaped steel materials is a pair of shaped steels arranged so that the webs face each other, or a pair of steel pipes arranged in the width direction. The pair of steel pipes are arranged so that the length directions of the steel pipes are parallel to each other. The case where the length directions are parallel is not limited to the case where the length directions are completely parallel, and the case where the deviation in the length direction of each steel pipe is small (for example, the angle formed by the length direction of each steel pipe is 10 ° or less). If) is also included. The shaped steel is, for example, H-shaped steel, channel steel, or angle steel. The steel pipe is, for example, a square steel pipe, a round steel pipe, or a deformed steel pipe.

In such a heavy machine support mechanism, the heavy machine moves on a pair of girder steel materials (specifically, on a flange of a shaped steel or on a steel pipe) and / or on a plurality of joist steels, so that the heavy machine is relatively flat. Heavy machinery can be moved in various areas. In addition, a plurality of heavy equipment support mechanisms can be easily connected. Therefore, the moving direction of the heavy machine is not easily regulated, and a high degree of freedom of movement can be ensured.

Further, since the movement of the heavy machine is not limited to the web as in Patent Document 1, it is not necessary to use an H-section steel having a web having a large width suitable for the size of the heavy machine, which is difficult to obtain. In this embodiment, the size of the shaped steel, the steel pipe or the joist steel can be selected according to, for example, the weight of the heavy machine, the distance between the pair of beams, and / or the required strength. Therefore, shaped steel, steel pipe, and joist steel that can be easily obtained from commercial products or leases can be used. Further, by adjusting the length of the joist steel, the distance between the girder steel materials and the width of the heavy machine support mechanism can be easily adjusted, and the distance between the joist steel can also be easily adjusted. Therefore, it is highly versatile and advantageous in terms of cost. Since the girder-shaped heavy equipment support mechanism can distribute the weight of the heavy equipment between the beams, it is not necessary to install a large number of support works on the slabs and beams of the building. Therefore, the work process can be simplified and the cost can be reduced. Further, the heavy machinery support mechanism according to the present embodiment has high structural strength because a plurality of joist steels are bridged over a pair of girder-shaped steel materials.

Hereinafter, specific examples of the heavy equipment support mechanism according to the embodiment of the present invention will be described with reference to the drawings as appropriate.
FIG. 1 is a plan view for explaining a state in which the heavy equipment support mechanism according to the present embodiment is bridged between the beams. The building includes a floor (or slab) F, a plurality of columns P penetrating the floor F, and a plurality of beams B bridged between adjacent columns P, and the floor F includes a plurality of beams B. Is supported by. A girder-shaped heavy machine support mechanism 1 is bridged between the pair of beams B facing each other, and the weight of the heavy machine moving on the heavy machine support mechanism 1 is distributed to the beams B to safely support the heavy machine. Can be done.

FIG. 1 shows three examples in which the arrangement of the heavy equipment support mechanism 1 is different. In the area A1 of the floor F, the two heavy equipment support mechanisms 1 are arranged side by side at intervals without being connected to each other. In the area A2 of the floor F, a plurality of heavy equipment support mechanisms 1 are arranged in a state of being connected in the length direction. In the region A2, of the plurality of heavy equipment support mechanisms 1, some of the heavy equipment support mechanisms 1 are connected to another heavy equipment support mechanism 1 in the width direction. In the area A3 of the floor F, a plurality of heavy equipment support mechanisms 1 are connected in the width direction.

In the illustrated example, shaped steel (specifically, H-shaped steel) is used as the girder-shaped steel material. Each heavy machine support mechanism 1 includes a pair of shaped steels 20a and 20b arranged side by side with a first interval, and a plurality of joist steels 30 bridged between the pair of shaped steels 20a and 20b with a second interval. , Is equipped. The shaped steels 20a and 20b are arranged so that the webs face each other, and the flanges existing at both ends of the webs are arranged on the upper side and the lower side of the heavy equipment support mechanism 1, respectively.

FIG. 2 shows an example of the bonded state of the shaped steels 20a and 20b and the joist steel 30. More specifically, FIG. 2 is an enlarged view schematically showing a portion II of the heavy equipment support mechanism 1 arranged in the region A1. FIG. 3 is a cross-sectional view taken along the line III-III of FIG. As shown in FIGS. 2 and 3, the pair of shaped steels 20a and 20b are arranged so that the webs 21a and 21b of the respective shaped steels 20a and 20b face each other with a predetermined first interval. .. The shaped steel 20a is provided with flanges 22a and 23a integrated with the web 21a at both ends of the web 21a, and the shaped steel 20b is provided with flanges 22b and 23b integrated with the web 21b at both ends of the web 21b. There is. In the heavy equipment support mechanism 1, the flanges 22a and 22b are located on the upper side, and the flanges 23a and 23b are located on the lower side.

In the shaped steel 20a, each of the flanges 22a and 23a extends outward from both sides of the web 21a with the web 21a as the center. A plurality of bolt holes 24 are formed in the upper flange 22a on both sides of the web 21a at regular intervals so as to follow the length direction of the shaped steel 20a. Similarly, in the shaped steel 20b, each of the flanges 22b and 23b extends outward from both sides of the web 21b centering on the web 21b, and the upper flange 22b has both sides centered on the web 21b. In addition, a plurality of bolt holes 24 are arranged at regular intervals along the length direction of the shaped steel 20b.

In the illustrated example, a square steel pipe is used as the joist steel 30. The joist steel 30 is arranged so that the length direction coincides with the width direction of the shaped steels 20a and 20b. One end of the joist steel 30 in the length direction is accommodated in the space between the upper flange 22a of the shaped steel 20a and the lower flange 23a, and the other end is the upper flange of the shaped steel 20b. It is housed in the space between the 22b and the lower flange 23b. In the illustrated example, the upper surface of the joist steel 30 is notched at both ends of the joist steel 30 which is a square steel pipe in the length direction, and the upper end surface of the joist steel 30 of the notched portion 31 is cut out. Supports the bottom surfaces of the upper flanges 22a and 22b of the shaped steels 20a and 20b. By providing the cutout portion 31, the height of the upper surface of the girder steel material (specifically, the upper surface of the upper flanges 22a and 22b) can be made substantially the same as the height of the upper surface of the joist steel 30. Can stably support heavy machinery.

The joist steel 30 includes a pair of nuts 32a and 32b fixed to both side surfaces of the joist steel 30 at both ends in the length direction. The side surfaces of the nuts 32a and 32b parallel to the axial direction are fixed to the side surface of the joist steel 30 in a state where the female screws are opened in the vertical direction. The nuts 32a and 32b are aligned with the distance between the bolt holes 24 formed in the upper flanges 22a and 22b. If necessary, the positions of the nuts 32a and 32b may be finely adjusted by interposing a steel plate 33 between the nuts 32a and 32b and both side surfaces of the joist steel 30. When the steel plate 33 is used, the steel plate 33 is fixed to the side surface of the joist steel 30 by welding, and the side surfaces of the nuts 32a and 32b are fixed to the steel plate 33 by welding.

A steel plate 34 is fitted into the cutout portion 31 of the joist steel 30, and the pair of end faces of the steel plate 34 and the inner wall surface of the joist steel 30 sandwiching the steel plate 34 are fixed by welding. A shino hole 34a may be formed in the vicinity of the center of the steel plate 34 between the nut 32a and the nut 32b. In this case, the positions of the nuts 32a and 32b and the positions of the two bolt holes 24 are aligned by using the Shino hole 34a and the alignment Shino. As a result, the nuts 32a and 32b can be easily aligned with the bolt holes 24 prior to fastening the bolts 40. Then, bolts 40 penetrated through the bolt holes 24 formed in the upper flanges 22a and 22b are fastened to the nuts 32a and 32b, whereby both ends of the joist steel 30 in the length direction are respectively fastened. , Fixed to shaped steels 20a, 20b.

The size of the notch portion 31 of the joist steel 30 (specifically, the length of the notch portion 31 along the length direction of the joist steel 30) may be adjusted according to the size of the shaped steels 20a and 20b. .. In FIGS. 2 and 3, H-shaped steel having an outer size of 250 mm × 250 mm in the width direction is used as the shaped steels 20a and 20b, and a square steel pipe having a width of 150 mm × height of 200 mm is used as the root steel 30. As shown, the same square steel pipe may be used as the root steel 30, and a larger size H-shaped steel may be used. For example, FIG. 4 shows a case where an H-section steel having an outer size of a cross section in the width direction of 400 mm × 400 mm is used. FIG. 4 is a schematic cross-sectional view of a heavy equipment support mechanism according to another embodiment.

In FIG. 4, the external size of the cross section of the H-shaped steels 120a and 120b in the width direction is different from that of the shaped steels 20a and 20b of FIG. 3, and the other parts are the same as those of FIG. In FIG. 4, the heavy equipment support mechanism includes a pair of shaped steels 120a and 120b in which the webs 121a and 121b are arranged so as to face each other at intervals, and a joist steel 30 bridged between them. Both ends of the joist steel 30 in the length direction are accommodated in the spaces between the upper flanges 122a and 122b of the shaped steels 120a and 120b and the lower flanges 123a and 123b, respectively. The bolts 40 penetrating the bolt holes 124 formed in the upper flanges 122a and 122b are fastened to the nuts 32a and 32b fixed on both side surfaces at both ends of the joist steel 30, whereby in the length direction of the joist steel 30. Both ends of the above are fixed to the shaped steels 120a and 120b.

In FIG. 4, since the shaped steels 120a and 120b are large in size, almost the entire notched portion 31 of the joist steel 30 is covered with the upper flanges 122a and 122b. As described above, if the cutout portion 31 of the joist steel 30 is manufactured in accordance with the large-sized girder-shaped steel material, it is possible to cope with the small-sized girder-shaped steel material. Further, it is also possible to cope with the case of adjusting the first interval between the pair of girder-shaped steel materials. The notch portion does not necessarily have to be formed, and may be arranged so that the upper surface of the joist steel comes into contact with the lower surface of the upper flange. In this case, it becomes easier to cope with the case where the size of the girder steel material is changed or the first interval is adjusted.

Another example of the bonded state of the shaped steel and the joist steel is shown in FIG. FIG. 5 is a plan view showing a part of a heavy machine support mechanism when an H-shaped steel having an outer diameter size of 300 mm × 300 mm in cross section is used as a shaped steel and a square steel pipe having a width of 125 mm × a height of 125 mm is used as a joist steel. Is. FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. The examples of FIGS. 5 and 6 are the same as those of FIGS. 2 and 3, except that the size of the shaped steel and the joist steel and the bonding state between the joist steel and the shaped steel are the same. And the description of FIG. 3 can be referred to.

In FIGS. 5 and 6, the joist steel 230 includes a pair of holding members 233a, 233b which are angle steels fixed to both side surfaces of the joist steel 230 at both ends in the longitudinal direction. In the holding members 233a and 233b, one outer wall surface of the angle steel contacts the side surface of the joist steel 230, and the other outer wall surface is perpendicular to the side (outside) opposite to the joist steel 230 from the end of the one outer wall surface. It is arranged in a state of being extended to, and is fixed by welding one outer wall surface to the side surface of the joist steel 230. Notched portions 231 are formed at both ends of the joist steel 230 in the length direction, as in the case of FIG. Holding members 233a and 233b are arranged so that the upper end surface of the cutout portion 231 and the other outer wall surface of the angle steel have approximately the same height.

Bolt holes 235 are formed in the portions of the holding members 233a and 233b that extend outward from the joist steel 230 (that is, the portion provided with the other outer wall surface). The bolt holes 235 of the holding members 233a and 233b are aligned with the distance between the bolt holes 224 formed in the upper flanges 222a and 222b of the shaped steel 220a. Then, with respect to the male screw of the bolt (TC bolt) 240 formed through the bolt holes 224 formed in the upper flanges 222a and 222b of the shaped steel 220a and the bolt holes 235 formed in the holding members 233a and 233b, the nuts are formed. By tightening the 232, both ends of the root steel 230 in the length direction are fixed to the shaped steels 220a and 220b, respectively.

Yet another example of the bonded state of the shaped steel and the joist steel is shown in FIG. 7a. FIG. 7a shows one of the heavy machinery support mechanisms when an H-shaped steel having an outer diameter size of 300 mm × 300 mm in cross section is used as the shaped steel and a square steel pipe having a width of 125 mm × height of 125 mm is used as the joist steel, as in FIG. It is a top view which shows the part. FIG. 7b is a cross-sectional view taken along the line VIIb-VIIb of FIG. 7a. The examples of FIGS. 7a and 7b are the same as the examples of FIGS. 2 and 3 except that the bonded state of the joist steel and the shaped steel and the reinforcing plate are provided on the upper surface of the joist steel. Yes, the description of FIGS. 2 and 3 can be referred to for the same part. Further, in the examples of FIGS. 7a and 7b, the sizes of the shaped steel and the joist steel are the same as those of FIGS. 5 and 6.

In FIGS. 7a and 7b, unlike the cases of FIGS. 2 and 3, notches are not provided at both ends of the joist steel 430 in the length direction. Therefore, at both ends of the joist steel 430, the upper surface of the joist steel 430 supports the bottom surfaces of the upper flanges 222a and 222b of the shaped steels 220a and 220b. Therefore, the height of the upper surface of the joist steel 430 is lower than the height of the upper surface of the girder steel material (specifically, the upper surface of the upper flanges 222a and 222b) by the thickness of the upper flanges 222a and 222b. ing. A reinforcing plate 436 is fixed to the upper surface of the joist steel 430 between the shaped steels 220a and 220b for the purpose of smoothing the movement of the heavy machine on the heavy machine support mechanism and reinforcing the joist steel 430. The thickness of the reinforcing plate 436 is substantially the same as the thickness of the upper flanges 222a and 222b. In the illustrated example, two reinforcing plates 436 are provided, one closer to the shaped steels 220a and 220b than the center of the joist steel 430 in the length direction.

In FIGS. 7a and 7b, the same holding members 233a and 233b of FIGS. 5 and 6 are used as the holding members 433a and 433b to fix the joist steel 430 and the shaped steels 220a and 220b. However, unlike the cases of FIGS. 5 and 6, the holding members 433a and 433b are fixed to the joist steel 430, and one end face of the angle steel used as the holding members 433a and 433b has an L-shaped cross section. It is fixed by welding to the side surface of the steel 430. In the holding members 233a and 233b, one outer wall surface of the angle steel faces the webs 221a and 221b of the shaped steels 220a and 220b, and the other outer wall surface supports the upper flanges 222a and 222b of the shaped steels 220a and 220b from the bottom surface. There is. Then, as in the cases of FIGS. 5 and 6, the bolt holes 224 formed in the upper flanges 222a and 222b and the bolt holes 435 of the holding members 433a and 433b are used to form the joist steel by the TC bolt 240 and the nut 232. The 430 is fixed to the shaped steels 220a and 220b. For the purpose of reinforcing the joist steel 430, which is a square steel pipe, at both ends of the joist steel 430, in the joist steel 430, in order to prevent the fore edge of the joist steel 430 from being deformed, the square reinforcing plate 437 Is placed. The reinforcing plate 437 is fixed in the joist steel 430 by welding the three end faces of the reinforcing plate 437 to the inner upper surface of the joist steel 430 and both inner surfaces.

In the heavy equipment support mechanism, shaped steel or steel pipe can be used as the girder steel material. Examples of the shaped steel include H-shaped steel, channel steel and angle steel. Examples of the channel steel include those called channel steel and C-shaped steel. From the viewpoint that the bottom surface of the upper flange can be stably supported by the joist steel, the channel steel preferably has no lip portion at the end portion of the flange. When channel steels are used, it is preferable that the pair of channel steels are arranged so that the flange portions extending from the web face each other. The shaped steel may have an inclined flange, but at least the upper flange preferably has a flat bottom surface so that the bottom surface can be easily supported by the upper surface of the joist steel. Examples of the steel pipe include a square steel pipe, a round steel pipe, and a deformed steel pipe, and among them, a square steel pipe and a round steel pipe are preferable.

The size of the girder steel material is not particularly limited, and may be determined according to the type and size of heavy machinery. The height of the girder steel material (for example, in the case of shaped steel, the length from the upper surface of the upper flange to the bottom surface of the lower flange) is, for example, 200 to 600 mm, preferably 250 to 500 mm. The width of the girder steel (for example, in the case of shaped steel, the length between both end faces of the flange) is, for example, 200 to 600 mm, preferably 250 to 500 mm.

The length of the girder steel material may be long enough to bridge between a pair of beams. The length of the girder steel material is, for example, 2 to 10 m, preferably 3 to 9 m.

The first spacing between the pair of girder-shaped steel materials is not particularly limited, and may be appropriately determined according to the type and size of the heavy machinery and the length of the joist steel. The first interval can be selected from the range of, for example, 600 mm to 2000 mm, and may be 800 mm to 1500 mm. The first interval is the length between the centers of the girder steel material in the width direction (for example, in the case of shaped steel, the length between the centers of the webs of the pair of shaped steels).
The girder-shaped steel material can be formed of, for example, steel.

The bolt holes formed for fixing the joist steel to the shaped steel may be formed at least on the upper flange of the shaped steel, and may also be formed on the lower flange. The spacing between the bolt holes is not particularly limited, and may be appropriately determined in consideration of the second spacing in which the joist steel is arranged. When bolt holes are formed in commercially available or wreath shaped steel, the bolt holes may be used to determine the second spacing for arranging the joist steel. When the steel pipe is used as the girder steel material, a known connecting member can be used for connecting the steel pipe and the joist steel according to the shape and type of the joist steel.

The root steel is not particularly limited, and for example, shaped steel (H-shaped steel, I-shaped steel, T-shaped steel, channel steel, etc.) may be used, but a notch portion is formed to support a heavy machine. From the viewpoint that the height of the upper surface of the steel can be easily adjusted, it is preferable to use a steel pipe in addition to flat steel, round steel, square steel, and other deformed steel. Above all, from the viewpoint of weight reduction, it is preferable to use a steel pipe. The shape of the steel pipe is not particularly limited and may be any of a round steel pipe, a square steel pipe, a deformed steel pipe, etc. It is preferable to use a square steel pipe. When shaped steel is used as the joist steel, it is desirable to arrange it so that the upper surface of the flange of the shaped steel, which is the joist steel, supports the heavy machinery. The joist steel can be formed of, for example, steel.

The length of the joist steel is such that both ends can be fixed to a pair of girder-shaped steel materials. The length of the joist steel can be selected from the range of, for example, 500 mm to 1800 mm, and may be 600 mm to 1300 mm.

The height of the joist steel can be determined according to the size of the girder steel material. When the shaped steel is used, the height of the joist steel may be selected so that the end portion of the joist steel can be accommodated in the space between the upper flange and the lower flange. The height of the joist steel is, for example, 100 to 500 mm, preferably 100 to 300 mm or 150 to 300 mm. The width of the joist steel is, for example, 100 to 500 mm, preferably 100 to 200 mm.

The second spacing between adjacent joist steels may be appropriately determined according to the type and size of the heavy machinery. The second interval can be selected from the range of, for example, 200 mm to 1500 mm, and may be 300 mm to 1000 mm. The second interval is the distance between the centers in the width direction of the adjacent joist steels.

When the cutout portions are formed at both ends in the length direction of the joist steel, the length of the cutout portions is, for example, 100 to 300 mm, preferably 150 to 250 mm. The length of the notch along the length direction of the joist steel should be larger than the length of the upper flange of one of the pair of shaped steels extending from the web toward the other shaped steel. Is preferable.

When forming the notch, the height (height position) of the upper surface of the girder steel material (for example, the upper surface of the upper flange in the case of shaped steel) and the height of the upper surface (or upper end) of the joist steel (or the upper end). Height position) can be almost the same. The height of the upper surface of the girder steel and the height of the upper surface (or upper end) of the joist steel are not limited to the case where these heights are completely the same, but when the difference in height is small. For example, it is assumed that the height difference is within 20% of the height of the joist steel.

The holding member is not limited to angle steel, and may have a shape that can fix joist steel and shaped steel. Specific examples of angle steel include equilateral angle steel, unequal side angle steel, and unequal side unequal thickness angle steel. The size of the holding member is not particularly limited, but it is preferable to adjust the size so as not to interfere with the fixing of the joist steel and the shaped steel. In the case of angle steel, the width of the angle steel (the length in the direction parallel to the width direction of the joist steel) is, for example, 75 to 275 mm, preferably 75 to 175 mm. The height of the angle steel (the length in the direction parallel to the height direction of the joist steel) is, for example, 75 to 125 mm, preferably 75 to 100 mm. The length of the angle steel (the length in the direction parallel to the length direction of the joist steel) is, for example, 75 to 250 mm, preferably 75 to 125 mm. In the illustrated example, TC bolts are used, but the types of bolts and nuts for fixing the holding member and the shaped steel may be appropriately selected according to the shape of the holding member.

The shape, size, and number of reinforcing plates placed on the upper surface or inside of the joist steel are not particularly limited. The thickness of the reinforcing plate arranged on the upper surface of the joist steel may be determined in consideration of the thickness of the flange of the shaped steel and the difference in height between the upper surface of the shaped steel and the upper surface of the joist steel.

In the illustrated example, the case where the girder steel material and the joist steel are fixed by bolts and nuts or the case where they are fixed by using a holding member such as angle steel is shown. As long as it can be fixed to each of the pair of girder-shaped steel materials, the fixing means is not particularly limited, and known fixing means can be adopted.

If necessary, a beam may be provided between the adjacent joist steels so as to be bridged between the joist steels. The beam may be bridged between adjacent joist steels so that the length direction of the beam is parallel to the length direction of the girder steel, for example.

The heavy equipment support mechanism 1 is bridged between a pair of beams B facing each other, and a support 50 for supporting the beams B may be arranged below the beams B. In the conventional demolition method, a large number of support works for supporting the floor and beams have been installed in order for heavy machinery to move on the floor, but in the present embodiment, only a small number of support works 50 are provided in a part of the beam B. However, it can support the heavy equipment support mechanism 1 and the gravity of the heavy equipment. Therefore, the work process can be simplified. The position where the support works 50 are arranged is not particularly limited, and a plurality of support works 50 may be arranged at predetermined intervals over the entire beam B. Above all, in the beam B that supports the heavy equipment support mechanism 1, the vicinity of the center in the length direction of the beam is far from the column P and tends to bend, so it is preferable to arrange the support 50 near the center. The vicinity of the center of the beam B is a region having a length of, for example, 1/4 to 1/2 of the length of the beam B, centered on the center in the length direction of the beam.

Since the upper surface of the heavy machine support mechanism 1 is relatively smooth, the heavy machine can be stably moved on the upper surface of the heavy machine support mechanism 1. The heavy machine can be moved on the heavy machine support mechanism 1 along the length direction of the heavy machine support mechanism 1, but a plurality of heavy machine support mechanisms 1 may be arranged as in the arrangement in the area A1 of the floor F in FIG. , By connecting them as in the arrangement in the area A2 or the area A3, the degree of freedom of movement of the heavy machinery can be further increased.

When a plurality of heavy equipment support mechanisms are arranged side by side, it is desirable to arrange them at intervals so that the tires and caterpillars of the heavy equipment do not enter the gaps between the adjacent heavy equipment support mechanisms and the heavy equipment can be stably supported. From the viewpoint of facilitating stable support of heavy machinery, the distance between adjacent heavy machinery support mechanisms (specifically, the distance between the side ends (or side surfaces) of the adjacent girder-shaped steel materials of the adjacent heavy machinery support mechanisms) is, for example, , It is preferable that it is smaller than the width of the heavy equipment support mechanism. The interval between such heavy equipment support mechanisms may be appropriately determined according to the type of heavy equipment to be moved and the like.

The plurality of heavy equipment support mechanisms 1 may be connected in the length direction of the heavy equipment support mechanism 1 so as to be arranged in the area A2 of the floor F in FIG. As a result, even if the length of the girder-shaped steel material is not so long, it is possible to form a long heavy machine support mechanism that serves as a passage for moving the heavy machine. It is easy to carry in and out girder steel materials and heavy equipment support mechanisms, and it is easy to use commercially available or leased girder steel materials. When a plurality of heavy machine support mechanisms 1 are connected in the length direction, the connected heavy machine support mechanisms 1 may be bridged between a plurality of pairs of beams B in the area A2 as in the area A2. As a result, the weight of the connected heavy equipment support mechanism 1 can be distributed to the plurality of beams B.

Further, the heavy equipment support mechanism 1 connected in the length direction may be connected to another heavy equipment support mechanism 1 in the width direction, if necessary. In this case, the width of the area (passage) where the heavy machinery can move can be increased. Further, the plurality of heavy equipment support mechanisms 1 may be connected in the width direction of the heavy equipment support mechanism 1 so as to be arranged in the area A3 of the floor F in FIG. When the heavy machine support mechanism 1 is connected so as to cover a large area on the floor F so as to be arranged in the area A3, when the work is performed using a plurality of heavy machines, the heavy machines can be replaced or the heavy machines can be put on standby. It can be used as a place to do.

Between the heavy equipment support mechanism 1 in the area A2 and the heavy equipment support mechanism 1 in the area A1, between two sets of heavy equipment support mechanisms 1 connected in the length direction in the area A2, and the heavy equipment support mechanism in the area A2. There is a gap between 1 and the heavy equipment support mechanism 1 in the area A3 because they are not connected to each other. When the heavy machine moves over such a gap, it is desirable that the width of the gap is such that the tires and caterpillars of the heavy machine do not enter and the heavy machine can be stably supported. The width of the gap between such heavy equipment support mechanisms may be appropriately determined according to the type of heavy equipment to be moved and the like.

When a plurality of heavy machine support mechanisms 1 are connected in the length direction, as shown in the region A2 of FIG. 1, the shaped steel is sandwiched between the shaped steels 20a and 20b at one end of the heavy machine supporting mechanism 1 in the length direction. One end in the length direction of one of the shaped steels 20b of another heavy machine support mechanism 1 to be connected is arranged so that the 20b and the side surfaces are in contact with each other. Then, the shaped steel 20a of the heavy machine supporting mechanism 1 and one end of the other shaped steel 20a of the other heavy machine supporting mechanism 1 in the length direction are arranged so that the side surfaces are in contact with each other. In such a state, the shaped steel 20a of the heavy machine support mechanism 1 and the shaped steel 20a of another heavy machine support mechanism 1 are fixed by the connecting metal fitting 60.

The connection state between the shaped steels 20a and 20a by the connecting metal fitting 60 will be described in more detail with reference to FIGS. 8a and 8b. FIG. 8a is an enlarged plan view schematically showing the region VIIIa of FIG. FIG. 8b is a cross-sectional view taken along the line VIIIb-VIIIb of FIG. 8a. As shown in FIG. 8a, the two heavy machine support mechanisms 1 to be connected are arranged so that the side surfaces of one end of the shaped steel 20a are in contact with each other.

The elongated plate-shaped connecting metal fitting 60 has a length sufficient for connecting the two shaped steels 20a and a width capable of fastening bolts. The connecting metal fitting 60 has a circular bolt hole 61a formed at one end in the length direction and an elongated hole 61b formed from the vicinity of the center in the length direction to the other end. One end of the connecting metal fitting 60 bridged between the contacting shaped steels 20a is a bolt hole 24 formed in the bolt hole 61a and the flange 22a of the shaped steel 20a of the one heavy machine support mechanism that overlaps the bolt hole 61a. The bolt 62a that has passed through is fastened to the nut 63a arranged on the bottom surface side of the flange 22a to be fixed. Further, on the elongated hole 61b side of the connecting metal fitting 60, a bolt 62b is formed through the elongated hole 61b and the bolt hole 24 formed in the flange 22a of the shaped steel 20a of the other heavy machine support mechanism that overlaps the elongated hole 61b. It is fixed to the shaped steel 20a by fastening it to a nut 63b arranged so as to contact the bottom surface of the flange 22a. The connecting portion such as the connecting metal fitting is not limited to the examples of FIGS. 8a and 8b, and known ones can be used as long as the adjacent shaped steels can be connected.

An end plate (or edge plate) 25 is fixed to the end face of the H-section steel 20a in the length direction by welding. As a result, the end portion of the shaped steel 20a is reinforced. A pair of plate-shaped portions 25a arranged so as to cross the end plate 25 in the width direction are fixed to the end plate 25 at the center of the end plate 25 in the height direction. Each plate-shaped portion 25a extends from the end plate 25 along the length direction of the shaped steel 20a and is welded to the end plate 25 and the web 21a. The planar shape of each plate-shaped portion 25a has a shape in which one corner portion of a rectangle is cut out. The cutout portion is formed on the side opposite to the end plate 25 of the plate-shaped portion 25a and on the side opposite to the web 21a. The end plate 25 has a total of four bolt holes 25b, two on the upper side and two on the lower side of the plate-shaped portion 25a, and the upper bolt hole 25b and the lower bolt hole 25b are plate-shaped portions. It is formed at vertically symmetrical positions around 25a. When the end plate 25 having such a bolt hole 25b is used, for example, when connecting with a slope mechanism described later, when connecting the end faces of the shaped steels (when connecting the shaped steels linearly), the bolt holes 25b can be used for connection. Although the end plate 25 at the end of the shaped steel 20a is shown in FIGS. 8a and 8b, the same end plate 25 is fixed to the end of the shaped steel 20b in FIG. 1, and the shaped steel 20a is also fixed. It has a structure similar to the end of.

When connecting a plurality of heavy machine support mechanisms 1 in the width direction, the heavy machine support mechanisms 1 separately manufactured may be arranged in the width direction and connected by a connecting metal fitting or the like. In this case, for example, the girder-shaped steel members of the adjacent heavy machinery support mechanisms may be connected. Further, one of the pair of girder-shaped steel materials included in one of the heavy machinery support mechanisms adjacent to each other and one of the pair of girder-shaped steel materials included in the other may be common. That is, one girder-shaped steel material of one heavy machine support mechanism may be used as one of the pair of girder-shaped steel materials of the other heavy machine support mechanism. In particular, since the flanges of the H-section steel extend outward from both surfaces of the web centering on the web, the joist steel 30 of one heavy machine support mechanism 1 is fixed to one flange and the other. If the joist steel 30 of the other heavy machine support mechanism 1 is fixed to the flange, two adjacent heavy machine support mechanisms 1 can be connected in the width direction. In such a connecting form, since the connecting metal fitting is not arranged on the upper surface of the heavy equipment support mechanism, it is possible to suppress the weight of the heavy equipment from being applied to the connecting metal fitting, and it is possible to obtain structurally high strength. In the area A2 and the area A3 of FIG. 1, the plurality of heavy equipment support mechanisms 1 connected in the width direction are in a state where the ends in the length direction are aligned with each other, but the end is not limited to this case. The portions may be connected in a staggered state.

When moving the assembled heavy machine support mechanism, the heavy machine support mechanism may be provided with a suspension member so that the heavy machine support mechanism can be easily moved by a heavy machine such as a crane. 9a and 9b show an example in which a suspension member is provided on joist steel. FIG. 9a is a schematic side view of the joist steel provided with the suspension member. FIG. 9b is a cross-sectional view taken along the line IXb-IXb of FIG. 9a.

9a and 9b are examples in which the suspension member 300 is provided on the same joist steel as the joist steel 230 of FIGS. 5 and 6. In the illustrated example, the suspension member 300 is a first reinforcing member 302a that connects a pair of suspension pieces 301 arranged so as to be in contact with both side surfaces and a bottom surface of the joist steel 230 and the pair of suspension pieces 301 at intervals. , 302b and a second reinforcing member 303. The first reinforcing members 302a and 302b reinforce the joist steel 230 and the suspension piece 301 from both side surfaces of the joist steel 230, and the second reinforcing member 303 reinforces the joist steel 230 and the suspension piece 301 from the bottom surface of the joist steel 230, respectively.

FIG. 9c is a schematic plan view of the suspension piece 301. The suspension piece 301 is provided with a notch 301b for fitting the suspension piece 301 from the bottom surface side of the joist steel 230. The suspension piece 301 is made of a steel plate, and a pair of suspension piece holes 301a are formed in the regions of the suspension piece 301 located on both sides of the notch 301b with the notch 301b interposed therebetween. The suspension piece hole 301a is provided on the upper surface side of the joist steel 230 in each suspension piece 301 so that it can be easily suspended from above by a heavy machine or the like.

The pair of suspension pieces 301 are arranged so that the main surfaces of the steel plates face each other at intervals, and the end surfaces of the suspension pieces 301 surrounding the notch 301b are both side surfaces and the bottom surface of the joist steel 230, respectively. Is arranged so as to surround it from three sides. Then, the end faces surrounding the cutout portion 301b are welded to both side surfaces and the bottom surface of the joist steel 230, whereby the suspension piece 301 is fixed to the joist steel 230.

In the illustrated example, the first reinforcing members 302a and 302b and the second reinforcing member 303 that connect the pair of suspension pieces 301 are all made of channel steel having a U-shaped cross section. The back surface of the channel steel web constituting the second reinforcing member 303 is fixed to the bottom surface of the joist steel 230, and both end faces in the length direction of the second reinforcing member 303 are facing main surfaces of the pair of suspension pieces 301. It is fixed to each. A stiffener 304 is provided inside the second reinforcing member 303 along the width direction of the second reinforcing member 303 for the purpose of enhancing the reinforcing effect. The stiffener 304 is fixed to the inner wall surface of the second reinforcing member 303 by welding.

The first reinforcing members 302a and 302b sandwich both side surfaces of the joist steel 230 by the back surfaces of the webs of the respective channel steels, and both of the second reinforcing members 303 fixed to the bottom surface of the joist steel 230. It is arranged so as to sandwich the flange from the outside. The back surfaces of the webs of the first reinforcing members 302a and 302b are fixed to both side surfaces of the joist steel 230 and the outer surfaces of both flanges of the second reinforcing member 303 by welding, respectively. Further, both end surfaces of the first reinforcing members 302a and 302b in the length direction are fixed to the opposing main surfaces of the pair of suspension pieces 301, respectively.

9d to 9f are schematic views for explaining a case where the heavy equipment support mechanism is lifted or moved by using the suspension member 300 of FIGS. 9a and 9b.
FIG. 9d is a schematic view of a state in which a heavy machine support mechanism provided with a suspension member on the joist steel is suspended by a wire, as viewed from a cross section of the joist steel in the width direction. FIG. 9e is a schematic view of a state in which a heavy machine support mechanism provided with a suspension member on the joist steel is suspended by a wire, as viewed from the side surface side of the joist steel.

9d and 9e show an example in which a heavy machine support mechanism is suspended by using a wire in a heavy machine such as a crane. In these figures, the suspension member 300 is attached to a part of the joist steels 230 among the plurality of joist steels 230 bridged between the shaped steels 220a and 220b of the heavy equipment support mechanism. The joist steel 230 shown in FIG. 9d is fixed to the shaped steels 220a and 220b as in the cases of FIGS. 5 and 6. A wire W is attached to the suspension piece hole 301a of the suspension member 300 via a shackle 305. Then, by pulling the wire W with the heavy machine, the heavy machine support mechanism can be hung.
As described above, when the suspension member 300 shown in FIGS. 9a and 9b is used, the heavy equipment support mechanism can be supported from the bottom surface and the side surface of the joist steel even when the heavy equipment support mechanism is suspended through the suspension member 300. The support mechanism can be stably lifted and moved.

In the suspension member 300, the flanges of the channel steels of the first reinforcing members 302a and 302b extend outward from both side surfaces of the joist steel 230, and the space surrounded by the flange and the web of the channel steel makes the joists thicker. Recesses 302c are formed on both side surfaces of the steel 230. Therefore, the heavy equipment support mechanism can be hung (or gripped) by using the recess 302c. Such an embodiment is shown in FIG. 9f. FIG. 9f is a schematic view of a heavy equipment support mechanism provided with a suspension member on the joist steel as viewed from a cross section in the width direction of the joist steel, as in FIG. 9d. In this example, in the channel steel which is the first reinforcing member of the suspension member 300 fixed to both side surfaces of the joist steel 230, the scissors-like beam of the crusher is formed in the recess 302c formed between the flange and the web. The tip of the steel can be inserted and the beam can be sandwiched from both side surfaces of the joist steel 230. In this way, the heavy machine support mechanism can be hung (or gripped) via the hanging member 300 by a heavy machine such as a crusher.

10a and 10b show another example in which a hanging member is provided on joist steel. FIG. 10a is a schematic side view of the joist steel provided with other suspension members. FIG. 10b is a cross-sectional view taken along the line Xb-Xb of FIG. 10a. In these examples, the suspension member 500 is provided on the same joist steel as the joist steel 430 of FIGS. 7a and 7b.

The suspension member 500 is the same as in FIGS. 9a and 9b except that ribs are provided between the pair of suspension pieces 301. In the suspension member 500, two ribs 505 are arranged at intervals between the pair of suspension pieces 301. Each rib 505 has a thick right-angled triangular shape, and two end faces sandwiching the right angle are arranged on the side surface of the joist steel 430 and on the upper side of the channel steel constituting the first reinforcing members 302a and 302b, respectively. It is fixed to the outer surface of the flange by welding. By providing such ribs, in particular, in channel steel which is the first reinforcing member, when the heavy equipment support mechanism is suspended or moved by utilizing the recess 302c formed between the flange and the web. Can increase the stability of.

Each component of the suspension member can be formed of, for example, a steel plate, a stainless steel plate, or the like.
The structure of the suspension member may be fixed to joist steel and / or shaped steel so that the heavy machine support mechanism can be stably lifted or moved by a heavy machine or the like, and FIGS. 9a, 9b, 10a, And the structure is not limited to that shown in FIG. 10b. In the illustrated example, a pair of hanging pieces are fixed and used, but the present invention is not limited to this case, and one hanging piece may be used as long as it can be stably fixed to the joist steel or the shaped steel. Further, instead of the pair of hanging pieces, a pair of steel plates fixed to both end surfaces of the first reinforcing member and the second reinforcing member in the length direction may be used as the hanging member. In this case, the heavy equipment support mechanism can be hung (or gripped) by the heavy equipment by utilizing the recess formed in the first reinforcing member according to the case of FIG. 9f. When fixing a pair of hanging pieces to the joist steel as shown in FIG. 9a, the pair of hanging pieces are provided at equal intervals with the center in the length direction of the joist steel as a boundary so as to easily balance the hanging pieces. Is preferable.
When suspending the heavy equipment support mechanism using a suspension member, for example, the heavy equipment support mechanism is lifted or moved in various directions such as a vertical direction or a horizontal direction while the heavy equipment support mechanism is suspended (or grasped). It includes the case of letting it.

The case where channel steel is used as the first reinforcing member and the second reinforcing member is shown, but not limited to this case, it is appropriately selected according to the shape and size of the joist steel or shaped steel to which the suspension member is fixed. do it. For example, when a square steel pipe is used as the joist steel as shown in FIGS. 9a, 9b, 10a, and 10b, for example, a square steel pipe having a predetermined length is halved along the length direction as a reinforcing member. The cut one may be used instead of the channel steel. Further, for example, as the second reinforcing member for reinforcing the joist steel from the bottom surface side, a channel steel or a square steel pipe cut in half along the length direction is used, and the joist steel is reinforced from both side surfaces. 1 As a reinforcing member, angle steel may be used.
Further, the shape and number of ribs are not limited to the above cases, and may be determined in consideration of stability when suspending or moving the heavy equipment support mechanism.

In one embodiment of the present invention, a plurality of heavy machine support mechanisms are installed on the upper floor and the lower floor, and the heavy machine support mechanism on the upper floor and the heavy machine support mechanism on the lower floor are formed into a slope-shaped heavy machine support mechanism (slope mechanism). ) May be connected. With such a structure, heavy machinery can be easily moved between the upper floors and the lower floors. An example of this is shown in FIG.

FIG. 11 is a schematic side view for explaining a state in which the heavy equipment support mechanism on the upper floor and the heavy equipment support mechanism on the lower floor are connected. FIG. 12 shows an enlarged schematic plan view of the connection portion between the heavy equipment support mechanism and the slope mechanism on the upper floor in FIG. 11 and the periphery thereof.
Heavy equipment support mechanism 1 is arranged on each of the upper floor U and the lower floor D of the building, and the heavy equipment support mechanism 1 on the upper floor U and the heavy equipment support mechanism 1 on the lower floor D support the heavy equipment on the upper floor U. The mechanism 1 is connected by a slope mechanism 71 extending diagonally downward from one end in the length direction. The slope mechanism 71 has a shape similar to that of the heavy equipment support mechanism 1. That is, the slope mechanism 71 is bridged between the pair of shaped steels 20a and 20b arranged so that the webs face each other with a first gap and the pair of shaped steels 20a and 20b with a second gap. It includes a plurality of joist steels 130.

The slope mechanism 71 is the same as the heavy machine support mechanism 1 except that the structure of the joist steel is different from that of the heavy machine support mechanism 1. Therefore, the above description of the heavy equipment support mechanism 1 can be referred to. The first interval and the second interval in the slope mechanism 71 may be appropriately determined in consideration of the weight of the heavy machine moving on the slope mechanism 71, and the first interval and the second interval in the heavy machine support mechanism 1. They may be the same or different.

The slope mechanism 71 is provided with a protrusion that suppresses the sliding of heavy machinery. More specifically, in the slope mechanism 71, the joist steel 130 bridged over the pair of shaped steels 20a and 20b includes a protrusion 130a. In the illustrated example, the protrusion 130a projects upward from the upper surface of the joist steel 130. FIG. 13 is a side view schematically showing the joist steel 130. In the illustrated example, a square steel having a width smaller than the width of the joist steel 130 and shorter than the length of the joist steel 130 is fixed to the upper surface of the joist steel 130 by welding. This square steel constitutes the protrusion 130a. The protrusion 130a functions as a non-slip when the heavy machine moves the slope mechanism 71. The joist steel 130 is different from the joist steel 30 in that it has a protrusion 130a, and the size, material, shape, etc. of the joist steel 130 can be referred to the description of the joist steel 30.

In the illustrated example, a case where square steel is welded as the protrusion 130a is shown, but as long as the protrusion 130a can function as a non-slip for heavy machinery, the shape, size, number, material, etc. of the protrusion 130a are appropriate. You can choose. The protrusion 130a may be formed on at least a part of the joist steel 130 of the slope mechanism 71, and may be formed on all the joist steel 130. From the viewpoint of effectively exerting the anti-slip effect, the height of the protrusion 130a is, for example, 10 to 50 mm, preferably 20 to 40 mm.

FIG. 14 is a cross-sectional view taken along the line XIV-XIV of FIG. An end plate 25 is fixed to the end surface of the slope mechanism 71 on the upper floor U side, as in the case of the heavy equipment support mechanism 1, and a connecting member 80a is fixed to the end plate 25. Similarly, the connecting member 80b is fixed to the end plate 25 fixed to the end surface of the heavy equipment support mechanism 1 on the upper floor U side on the slope mechanism 71 side.

The connecting members 80a and 80b each have an L-shaped cross-section support having a flat plate-shaped support plate 81a and a flat plate-shaped end plate 81b extending in a direction perpendicular to the support plate 81a from the end portion of the support plate 81a. A member 81 and a flat plate-shaped connecting portion 82 extending from the end plate 81b in a direction perpendicular to the end plate 81b are provided. In the connecting member 80a on the heavy machine support mechanism 1 side, the support member 81 is arranged so that the support plate 81a is along the upper surface of the shaped steel 20b and the end plate 81b covers the entire end plate 25. In the connecting member 80b on the slope mechanism 71 side, the support member 81 is arranged so that the support plate 81a is along the bottom surface of the shaped steel 20b and the end plate 81b covers the entire end plate 25.

Bolt holes 83 are formed in the support plate 81a on the slope mechanism 71 side at positions overlapping with the bolt holes 24 formed in the lower flange 23b of the shaped steel 20b of the slope mechanism 71, and these bolt holes are supported by the support plate. The bolt 86 penetrating from the 81a side is fastened to the nut 88 arranged on the upper surface side of the lower flange 23b. On the other hand, in the support plate 81a on the heavy machine support mechanism 1 side, bolt holes 83 are formed at positions overlapping with the bolt holes 24 formed in the upper flange 22b of the shaped steel 20b of the heavy machine support mechanism 1. The bolt 86 that penetrates the bolt hole of the above from the support plate 81a side is fastened to the nut 88 arranged on the bottom surface side of the upper flange 22b.

In both the connecting members 80a and 80b on the slope mechanism 71 side and the heavy equipment support mechanism 1 side, bolt holes 84 are formed in the end plate 81b at positions overlapping with the bolt holes 25b of the end plate 25. The bolt 86 that penetrates the bolt hole 84 and the bolt hole 25b from the end plate 81b side is fastened to a nut 88 arranged inside the end plate 25.

In both the connecting members 80a and 80b on the slope mechanism 71 side and the heavy equipment support mechanism 1 side, the connecting portion 82 is arranged at the center of the end plate 81b in the width direction along the height direction of the end plate 81b. The connecting portion 82 is firmly joined to the end plate 81b by welding. A connection portion (first connection portion) 82 extending from the end of the heavy equipment support mechanism 1 toward the slope mechanism 71 side, and a connection portion (first connection portion) extending from the end of the slope mechanism 71 toward the heavy equipment support mechanism 1 side. The second connecting portion) 82 is overlapped and connected with the side surfaces facing each other in contact with each other. A bolt hole 85 is formed in both connection portions 82 near the center in the surface direction, and the bolt 87 penetrating the bolt hole 85 of both connection portions 82 is a nut arranged on the leg side of the bolt 87. It is concluded at 89. By this fastening, the connecting portions 82 are connected to each other. By fixing the vicinity of the center of the connecting portion with the bolt 87 in this way, the slope mechanism 71 can be moved in the circumferential direction with the bolt 87 as the central axis, so that the slope mechanism 71 can be easily installed and fixed.

Although the connecting members 80a and 80b arranged at the ends of the shaped steel 20b of the slope mechanism 71 and the heavy machine support mechanism 1 have been described, they are also connected to the ends of the shaped steel 20a in the same manner as in the case of the shaped steel 20b. Members 80a and 80b are provided. The slope mechanism 71 and the shaped steel 20a of the heavy equipment support mechanism 1 are also connected by connecting members 80a and 80b.
Each of the constituent members of the connecting members 80a and 80b can be formed of, for example, a steel plate, a stainless steel plate, or the like.

The thickness of the connecting portion 82 is, for example, 10 to 25 mm, preferably 15 to 20 mm. The thickness of the support plate 81a and the end plate 81b can also be selected from the same range as the thickness of the connecting portion 82.

From the viewpoint of smoothly moving the heavy equipment between the heavy equipment support mechanism 1 of the upper floor U and the heavy equipment support mechanism 1 of the lower floor D, the end of the slope mechanism 71 on the lower floor D side supports the heavy equipment of the lower floor D. It is preferable to arrange it on the mechanism 1. At this time, it is preferable that the heavy equipment support mechanism 1 is provided with a stopper, and the end portion of the slope mechanism 71 on the lower floor D on the heavy equipment support mechanism 1 side is supported by the stopper. Thereby, the deviation of the slope mechanism 71 can be regulated.

FIG. 15a shows an enlarged schematic side view of the lower floor side end portion of the slope mechanism in FIG. 11 and its periphery. FIG. 15b is a plan view schematically showing a state in which the stopper is arranged on the shaped steel in FIG. 15a.

The heavy equipment support mechanism 1 installed on the lower floor D includes a stopper 90 that supports the end of the slope mechanism 71. In the illustrated example, the stopper 90 has a shape protruding upward from the upper surface of the upper flange 22b. The stopper 90 includes a bottom plate 91 and a rectangular wall portion 92 extending vertically upward with respect to the bottom plate 91 from one end of the bottom plate 91 (an end arranged on the slope mechanism 71 side). At both ends of the wall portion 92 in the width direction, a pair of ribs 93 that are integrated with both ends of the wall portion 92 and the bottom plate 91 in the width direction on the wall portion 92 side and support the wall portion 92 are formed. The bottom plate 91 is formed with elongated holes 91a along the length direction of the shaped steel 20b, and bolts 94 are inserted into these holes in a state where the elongated holes 91a are overlapped with the bolt holes 24 formed on the upper flange 22b. The stopper 90 is fixed to the shaped steel 20b by penetrating it and fastening it to the nut 95 arranged on the bottom surface side of the upper flange 22b. A similar stopper 90 is also formed on the shaped steel 20a of the heavy equipment support mechanism 1 installed on the lower floor D. The pair of stoppers 90 on the shaped steels 20a and 20b are arranged so that the wall portions 92 are on the same straight line, and these pair of stoppers 90 support the end portion on the lower floor D side of the slope mechanism 71. Has been done.

Although the example in which the stopper 90 is fixed to the flange on one side extending from the web has been described, the two stoppers 90 may be fixed to both flanges extending from the web, respectively. Further, a stopper formed so as to straddle both flanges extending from the web may be fixed to both flanges. One elongated hole 91a is formed in the bottom plate 91 of the stopper 90, but the present invention is not limited to this case, and a circular bolt hole may be formed. The number of bolt holes and elongated holes formed in the bottom plate 91 is not limited, and may be one or two or more.

The stopper 90 can support the end of the slope mechanism 71 on the lower floor D side according to the length of the slope mechanism 71, the height of the lower floor D, and the like, and is at an appropriate position of the heavy equipment support mechanism 1 of the lower floor D. It may be provided in.
Each member of the stopper 90 can be formed of, for example, a steel plate, a stainless steel plate, or the like.

The structure of the connecting portion is not limited to the examples shown in FIGS. 11 and 14, and it is sufficient that the heavy equipment support mechanism and the slope mechanism can be connected. The connection should be located between the end of the heavy equipment support mechanism and the end of the slope mechanism, or on the side of the heavy equipment support mechanism and the slope mechanism so as not to hinder the movement of the heavy equipment or the installation of the heavy equipment support mechanism as much as possible. It is preferable to provide it.

FIG. 16a is a schematic plan view for explaining another embodiment of the connection portion between the heavy equipment support mechanism and the slope mechanism on the upper floor. FIG. 16b is a cross-sectional view taken along the line XVIb-XVIb of FIG. 16a. 16a and 16b are the same as the examples of FIGS. 12 and 14 except that the suspension member is attached to a part of the joist steel and the structure of the connecting portion and the bonding state between the shaped steel and the joist steel are different. Yes, you can refer to the explanation of these figures. For the state of mounting the suspension member 300 on the joist steel 230, refer to FIGS. 9a and 9b, and the description thereof. Further, for the bonding state of the shaped steels 220a and 220b and the joist steel 230, reference to FIGS. 5 and 6 and the description thereof. The joist steel 230 of the slope mechanism 271 is provided with a protrusion 230a that functions as a non-slip when the heavy machine moves the slope mechanism 271, as in the case of FIGS. 12 and 14. For the protrusion 230a, reference can be made to FIGS. 12 and 14, and the description of the protrusion 130a.

The end plates 25 are fixed to the end faces of the slope mechanism 271 on the upper floor U side and the end faces of the heavy equipment support mechanism 201 on the upper floor U side on the slope mechanism 271 side, respectively, as in the case of FIG. The connecting member 280 is fixed to the end plate 25 on the upper floor U side of the slope mechanism 271, and the connecting member 380 is fixed to the end plate 25 on the slope mechanism 271 side of the heavy equipment support mechanism 201.

The connecting member 280 fixed to the end surface of the heavy equipment support mechanism 201 via the end plate 25 has a flat plate-shaped support plate 281a and a flat plate-like shape extending from the end of the support plate 281a in a direction perpendicular to the support plate 281a. It includes a support member 281 having an L-shaped cross section including an end plate 281b, and a pair of plate-shaped connecting portions 282a and 282b extending from the end plate 281b in a direction perpendicular to the end plate 281b. In the connecting member 280, the support member 281 is arranged so that the support plate 281a is along the upper surface of the shaped steel 220b and the end plate 281b covers the entire end plate 25.

On the other hand, the connecting member 380 fixed to the end surface of the slope mechanism 271 via the end plate 25 has a flat plate-like support plate 381a and a flat plate-like shape extending from the end of the support plate 381a in a direction perpendicular to the support plate 381a. It is provided with a support member 381 having an L-shaped cross section with the end plate 381b, and a hook-shaped connecting portion 382 extending from the end plate 381b in a direction perpendicular to the end plate 381b. In the connecting member 380, the support member 381 is arranged so that the support plate 381a is along the bottom surface of the shaped steel 220b and the end plate 381b covers the entire end plate 25.

The pair of plate-shaped connecting portions 282a and 282b are each provided with bolt holes 285 near the center in the surface direction. The round steel 287 that penetrates both the connecting portions 282a and 282b has both ends welded to the connecting portions 282a and 282b, respectively, and is fixed to the connecting portions 282a and 282b. In this way, the round steel 287 is in a state of being bridged between the pair of facing connecting portions 282a and 282b. Then, by hanging the hook-shaped portion of the connecting portion 382 of the connecting member 380 arranged on the end surface of the slope mechanism 271 on the round steel 287, the slope mechanism 271 can be easily connected to the heavy machine support mechanism 201. can.

FIG. 16c is a cross-sectional view taken along the line XVIc-XVIc of FIG. 16a. The distance between the pair of connecting portions 282a and 282b increases from the vicinity of the upper portion of the round steel 287 to the upper ends of the connecting portions 282a and 282b so that the hook-shaped connecting portion 382 can be stably and easily hung on the round steel 287. ing. Insert the hook-shaped connecting portion 382 into the space between the connecting portions 282a and 282b from the upper side to the lower side of the connecting portions 282a and 282b, and hang the key portion of the connecting portion 382 on the round steel 287. The heavy equipment support mechanism 201 and the slope mechanism 271 are connected at this time. When connecting these mechanisms, each mechanism may be lifted or moved by using the hanging member 300 provided in the heavy equipment support mechanism 201 or the slope mechanism 271.

As shown in FIGS. 16a and 16b, the end of the heavy equipment support mechanism 201 on the slope mechanism 271 side is provided so as to prevent the heavy equipment from slipping when the heavy equipment moves between the heavy equipment support mechanism 201 and the slope mechanism 271. A metal member 383 is provided. The metal member 383 is one of a first plate portion 383a arranged along the flat plate-shaped support plate 281a of the connecting member 280 arranged on the end face of the heavy equipment support mechanism 201 and the first plate portion 383a in the lateral direction. A second plate portion 383b extending perpendicularly to the first plate portion 383a and a third plate portion 383c extending on the side opposite to the second plate portion 383a are provided. The metal member 383 is arranged so that the longitudinal direction of the first plate portion 383a is bridged between the pair of shaped steels 220a and 220b. Both ends of the first plate portion 383a in the longitudinal direction are the shaped steels 220a and 220b, and the first plate portion 383a and the shaped steels 220a and 220b at the ends of the shaped steels 220a and 220b on the slope mechanism 271 side, respectively. Along with the support plate 281a interposed between them, they are fixed by a TC bolt 284a penetrating them and a nut 284b mounted from the leg side of the TC bolt 284a. In the metal member 383, a third plate extending to the opposite side of the second plate portion 383b (that is, below the heavy equipment support mechanism 201) so that the first plate portion 383a and the support plate 281a can be overlapped in a surface contact state. The portion 383c is formed so as to be inserted into the space formed between the pair of shaped steels 220a and 220b.

Generally, in the demolition work of a building, a part of the floor (slab) on the upper floor is removed to form an opening, and the floor (slab), beams, columns, walls, etc. dismantled on the upper floor are required from this opening. Depending on the situation, use a crane or the like to lower the floor (such as the first floor) where the transport vehicle (truck, etc.) can enter, load it into the transport vehicle, and carry it out. In recent years, since basements are often formed, it is difficult to ensure safety on the floors where such transport vehicles come and go because a large weight is added to the floor.

On the floor where such a transport vehicle enters, the heavy equipment support mechanism according to the present embodiment may be laid so as to be bridged between a pair of beams supporting the floor. In this case, the gravity applied to the heavy equipment support mechanism can be dispersed not only on the floor but also on the beams, and it becomes easy to ensure high safety. Conventionally, in such applications, reinforcing concrete is used or support works are installed on the lower floors. In the present embodiment, the heavy equipment support mechanism can be used instead of such reinforcing concrete and support work, so that the work efficiency can be improved.

FIG. 17 is a plan view schematically showing a state in which a heavy equipment support mechanism is laid on the floor of the first floor of a building having a basement floor. The heavy machine support mechanism 1 is connected in the width direction like the heavy machine support mechanism 1 arranged in the area A3 of FIG. 1, and is laid so as to cover the floor F. Then, crushed stone 101 is laid so as to cover the floor F in the gaps between the joist steels 30 and the shaped steels 20a and 20b. By laying the crushed stone 101, it is possible to reduce the step on the surface supporting the heavy equipment including the transport vehicle between the area where the heavy equipment support mechanism 1 is arranged and the area where the heavy equipment support mechanism 1 is not arranged, and the entire floor. It facilitates the movement of heavy machinery including the transport vehicle in. If necessary, the shaped steel 102 may be arranged in a region where the heavy equipment support mechanism 1 is not arranged. At this time, it is preferable that the shaped steel 102 is arranged so as to bridge between the pair of beams. Further, a slope 103 made of an iron plate, crushed stone, or the like may be arranged between the heavy equipment support mechanism 1 and the outside of the building in order to facilitate the entry and exit of heavy equipment including a transport vehicle.

According to the heavy equipment support mechanism according to the embodiment of the present invention, the heavy equipment can be moved stably and the degree of freedom of movement of the heavy equipment can be increased. Therefore, in the demolition work of a building, it is useful for forming a passage for supporting a moving heavy machine by bridging between opposing beams.

P: Column, B: Bolt, F: Floor, 1,201: Heavy machine support mechanism, 20a, 20b, 120a, 120b, 220a, 220b: Shaped steel, 21a, 21b, 121a, 121b, 221a, 221b: Web, 22a , 22b, 122a, 122b, 222a, 222b: Upper flange, 23a, 23b, 123a, 123b: Lower flange, 24,124,224: Bolt hole, 25: End plate, 25a: Plate-shaped part, 25b: Bolt hole , 30, 130, 230, 430: Bolt steel, 31,231: Notch, 32a, 32b, 232: Nut, 33, 34: Steel plate, 34a: Shino hole, 233a, 233b, 433a, 433b: Holding member, 235,435: Bolt holes, 436,437: Reinforcing plates, 130a, 230a: Protrusions, 40: Bolts, 240: TC bolts, 50: Support workers, 60: Connecting brackets, 61a: Bolt holes, 61b: Long holes, 62a, 62b: Bolt, 63a, 63b: Nut, 300,500: Suspension member, 301: Suspension piece, 301a: Suspension piece hole, 301b: Notch, 302a, 302b: First reinforcing member, 302c: Recess, 303 : Second reinforcing member, 304: Stiffener, 305: Shackle, W: Wire, 505: Rib, 71,271: Slope mechanism, 80a, 80b, 280, 380: Connecting member, 81,281,381: Support member, 81a , 281a, 381a: Support plate, 81b, 281b, 381b: End plate, 82, 282a, 282b, 382: Connection part, 383: Metal member, 383a: First plate part, 383b: Second plate part, 383c: First 3 plate part, 284a: TC bolt, 287: round steel, 83,84,85: bolt hole, 86,87: bolt, 88,89: nut, U: upper floor, D: lower floor, 90: stopper, 91 : Bottom plate, 91a: Long hole, 92: Wall, 93: Rib, 94: Bolt, 95: Nut, 101: Crushed stone, 102: Shaped steel, 103: Slope

Claims (14)

A girder-shaped heavy equipment support mechanism that is bridged between the pair of beams in order to support the moving heavy equipment in the demolition work of a building having at least a pair of beams.
The heavy machinery support mechanism includes a pair of girder steels arranged with a first interval and a plurality of joist steels bridged between the pair of girders with a second interval.
The pair of digit shaped steel, a pair of shaped steel lined as the web face each other, or Ri pair of steel pipe der aligned in the width direction, and forms a heavy equipment running surface, heavy machinery support mechanism. A girder-shaped heavy equipment support mechanism that is bridged between the pair of beams in order to support the moving heavy equipment in the demolition work of a building having at least a pair of beams.
The heavy machinery support mechanism includes a pair of girder steels arranged with a first interval and a plurality of joist steels bridged between the pair of girders with a second interval.
The pair of digits like steel, Ri pair of steel pipe der aligned pair of shaped steel lined as the web face each other, or in the width direction,
The pair of girder-shaped steel materials are the pair of shaped steels.
Each of the pair of shaped steels has an upper flange and a lower flange.
The upper flange has a plurality of bolt holes
Each of the plurality of joist steels comprises a pair of nuts fixed to both sides at each of the ends in the longitudinal direction.
A heavy equipment support mechanism in which each of the two end portions is fixed to each of the pair of girder-shaped steel materials by fastening a bolt penetrating the bolt hole to the nut. A girder-shaped heavy equipment support mechanism that is bridged between the pair of beams in order to support the moving heavy equipment in the demolition work of a building having at least a pair of beams.
The heavy machinery support mechanism includes a pair of girder steels arranged with a first interval and a plurality of joist steels bridged between the pair of girders with a second interval.
The pair of girder-shaped steel materials are a pair of shaped steels arranged so that the webs face each other, or a pair of steel pipes arranged in the width direction.
The pair of girder-shaped steel materials are the pair of shaped steels.
Each of the pair of shaped steels has an upper flange and a lower flange.
Both ends of the plurality of joist steels in each length direction are fixed to the pair of girder steel materials in a state of being accommodated in a space between the upper flange and the lower flange. Flange,
At both ends, the top surfaces of the plurality of joist steels support the bottom surface of the upper flange.
Each of the plurality of joist steels comprises a pair of holding members fixed to both sides at each of the two ends.
A heavy equipment support mechanism in which each of the two end portions is fixed to each of the pair of girder-shaped steel materials by fixing the pair of holding members to the upper flange. A girder-shaped heavy equipment support mechanism that is bridged between the pair of beams in order to support the moving heavy equipment in the demolition work of a building having at least a pair of beams.
The heavy machinery support mechanism includes a pair of girder steels arranged with a first interval and a plurality of joist steels bridged between the pair of girders with a second interval.
The pair of girder-shaped steel materials are a pair of shaped steels arranged so that the webs face each other, or a pair of steel pipes arranged in the width direction.
The heavy equipment support mechanism installed on the upper floor, the heavy equipment support mechanism installed on the lower floor, and a slope mechanism for connecting the heavy equipment support mechanism are provided.
The slope mechanism includes a pair of girder steels arranged with a first interval and a plurality of joist steels bridged between the pair of girders with a second interval.
The pair of girder-shaped steel materials are a pair of shaped steels arranged so that the webs face each other, or a pair of steel pipes arranged in the width direction.
The heavy equipment support mechanism installed on the upper floor has a first connection portion extending from an end portion on the slope mechanism side toward the slope mechanism side.
The slope mechanism has a second connection portion that extends from an end portion on the heavy equipment support mechanism side installed on the upper floor toward the heavy equipment support mechanism side.
A heavy equipment support mechanism in which the first connection portion and the second connection portion are connected. A girder-shaped heavy equipment support mechanism that is bridged between the pair of beams in order to support the moving heavy equipment in the demolition work of a building having at least a pair of beams.
The heavy machinery support mechanism includes a pair of girder steels arranged with a first interval and a plurality of joist steels bridged between the pair of girders with a second interval.
The pair of girder-shaped steel materials are a pair of shaped steels arranged so that the webs face each other, or a pair of steel pipes arranged in the width direction.
The heavy equipment support mechanism installed on the upper floor, the heavy equipment support mechanism installed on the lower floor, and a slope mechanism for connecting the heavy equipment support mechanism are provided.
The slope mechanism includes a pair of girder steels arranged with a first interval and a plurality of joist steels bridged between the pair of girders with a second interval.
The pair of girder-shaped steel materials are a pair of shaped steels arranged so that the webs face each other, or a pair of steel pipes arranged in the width direction.
Further, a hanging member for suspending the heavy equipment support mechanism or the slope mechanism is provided.
The suspension member is a heavy equipment support mechanism fixed to at least one of the heavy equipment support mechanism and the slope mechanism. The pair of girder-shaped steel materials are the pair of shaped steels.
The heavy equipment support mechanism according to any one of claims 1, 4 and 5, wherein each of the pair of shaped steels includes an upper flange and a lower flange. Both ends of the plurality of joist steels in each length direction are fixed to the pair of girder steel materials in a state of being accommodated in a space between the upper flange and the lower flange. The heavy equipment support mechanism according to claim 6. The heavy equipment support mechanism according to any one of claims 2, 3, 6, and 7, wherein the height of the upper surface of the upper flange and the height of the upper surface of the joist steel are the same. The heavy equipment support mechanism according to claim 7 , wherein the upper surface of the plurality of joist steels supports the lower surface of the upper flange at both ends. The building has multiple pairs of beams
The heavy equipment support mechanism according to any one of claims 1 to 9 , wherein a plurality of the heavy equipment support mechanisms are connected in the length direction of the heavy equipment support mechanism and bridged between the plurality of pairs of beams. A plurality of the heavy equipment support mechanisms are connected in the width direction of the heavy equipment support mechanism.
Claims 1 to 9 that one of the pair of girder-shaped steel materials included in one of the heavy machinery supporting mechanisms adjacent to each other and one of the pair of girder-shaped steel materials included in the other heavy machinery supporting mechanism are common. The heavy equipment support mechanism according to any one of the above items. The heavy equipment support mechanism installed on the upper floor, the heavy equipment support mechanism installed on the lower floor, and a slope mechanism for connecting the heavy equipment support mechanism are provided.
The slope mechanism includes a pair of girder steels arranged with a first interval and a plurality of joist steels bridged between the pair of girders with a second interval.
The heavy equipment support mechanism according to any one of claims 1 to 3 , wherein the pair of girder-shaped steel materials is a pair of shaped steels arranged so that the webs face each other, or a pair of steel pipes arranged in the width direction. .. Any one of claims 4, 5 and 12, wherein the heavy equipment support mechanism installed on the lower floor has a stopper for supporting an end of the slope mechanism on the side of the heavy equipment support mechanism installed on the lower floor. The heavy equipment support mechanism described in the section. The heavy equipment support mechanism according to any one of claims 4, 5 , 12, and 13, wherein the slope mechanism has a protrusion that suppresses the sliding of the heavy equipment.

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