KR20050049303A - Floor support structure for building - Google Patents

Abstract

A plurality of girder beams S are supported in parallel to the support surface of the concrete structure F, and an upper plate 31 is laid on those girder beams S. In the floor support structure of a building which consists of a plurality of reinforcement beams, a plurality of reinforcing beams R intersecting those girder beams S are arranged in series at an intermediate portion in the longitudinal direction of the plurality of girder beams S, The both ends of each reinforcement beam R and the side surface of the girder beam S which oppose the both ends were integrally couple | bonded with the connection bracket J. As shown in FIG. This reinforces the girder beam of the floor structure, thereby dispersing the load acting on the floor, prevents the occurrence of "bound phenomenon" of the girder beam, and improves sound insulation performance. I had to let you.

Description

Floor support structure of the building {FLOOR SUPPORT STRUCTURE FOR BUILDING}

TECHNICAL FIELD The present invention relates to a floor support structure of a building having a concrete structure such as an apartment, and more particularly, to an improvement of a floor support structure that is supported without being fixed to the support surface of the structure for sound insulation measures.

Conventionally, in a building having a concrete structure such as an assembly house, a plurality of girder beams are floated on the floor support surfaces such as beams of the concrete structure without being fixed, and a top plate is placed thereon. The sound insulation floor support structure in a building which made it possible to reduce the influence which the vibration generate | occur | produces by the load applied to an upper board to the lower floor through a floor structure is known (for example, refer patent document 1).

(Patent Document 1)

Japanese Patent Application Laid-Open No. 2001-81891

By the way, the sound insulation bottom support structure shown by the said patent document 1 supports a some girder beam in both support states on the concrete structure beams (on the floor slab, there is no conventional copper column for supporting a girder beam). Therefore, when excessive dynamic load acts on the center part of the floor, as shown in FIG. 22, the girder beams of both supporting states are concave downwardly, and both ends of the girder beam are curved. There is a problem in that an upward force in the direction of repeatedly deviating from the support surface of the concrete structure causes this "bound phenomenon" to the girder beam, which causes noise.

The present invention has been made in view of such a situation, and the girder beam, particularly the middle portion thereof, increases the rigidity, and the force such as dynamic load is dispersed on the floor to enable "balance of power" to be possible. It is an object of the present invention to provide a floor support structure for a new building in which the occurrence of the "bound phenomenon" is suppressed as much as possible to improve the sound insulation performance.

In order to achieve the above object, according to the present invention, a support surface of a concrete structure is supported in parallel without fixing a plurality of girder beams, and a top plate is provided on the girder beams to provide a floor support structure of a building. In the middle of the longitudinal direction of the plurality of girder beams, a plurality of reinforcing beams intersecting the girder beams are arranged in series, and both ends of each of the reinforcing beams and the side surfaces of the girder beams opposite to each other. It provides a floor support structure of the building, characterized in that formed by integrally coupling by a connecting bracket.

According to such a feature, since the reinforcement beams intersecting the longitudinal intermediate portions of the plurality of girder beams are connected by a plurality of reinforcing brackets, the rigidity of the intermediate portion where the load of the plurality of girder beams is most applied is increased. Even if an excessive dynamic load is applied to the center of the upper plate, the dynamic load can be dispersedly supported by a plurality of girder beams, thereby enabling the "balance of forces" of the floor structure, and the end of the girder beam ( It is possible to prevent the occurrence of a "bound phenomenon" in which the back portion jumps, and further improve the sound insulation performance.

In order to achieve the above object, according to the present invention, in the above configuration, the connecting bracket includes a pair of clamp bodies for clamping integrally both sides of the girder beam. And a reinforcing beam receiver which is fixed to the back surface of the clamp half body and supports the end of the reinforcing beam, respectively.

According to such a second feature, the connecting bracket is simply and firmly fixed at an arbitrary position in the middle of the girder beam, so that the reinforcing beam can be reliably fixed to the girder beam.

In order to achieve the above object, according to the present invention, in addition to the first feature or the second feature, the reinforcing beam is arranged in a single row or in a plurality of rows in the longitudinal middle portion of the girder beam. It provides that characterized in that arranged.

According to this third feature, since the reinforcement beams are arranged in one row or in a plurality of rows at the middle portion of the girder beam in the longitudinal direction, adjustment of the reinforcement degree of the girder beams can be easily performed in accordance with the area of the floor area or the like. .

In order to achieve the above object, according to the present invention, in addition to the first, second or third feature, the girder beams are arranged in a plurality of rows in close proximity to each other.

According to such a fourth feature, the girder beams are arranged in a plurality of rows in close proximity to each other, thereby increasing the rigidity of the girder beams themselves, and cooperating with the reinforcing beams and the connecting brackets to further increase the rigidity of the floor structure.

The above, other objects, features and advantages in the present invention will become apparent from the description of the preferred embodiments described below in accordance with the accompanying drawings.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described concretely below based on the Example of this invention illustrated in an accompanying drawing.

First, with reference to FIGS. 1-6, the 1st Example of this invention is described. This first embodiment is a case where the floor supporting structure of the present invention is provided in a collective house provided with a capacity structure.

In FIG. 1, the concrete structure F of the capacity | capacitance structure which comprises the frame | skeleton of an assembly house extends in a horizontal direction, and horizontal structure part Fh which divides a building into several hierarchies, and a vertical direction. It is provided with the perpendicular | vertical structure part Fv which extends and connects the up-and-down horizontal structure part Fh with each other.

Capacity (2) which is integrally protruded upward from the floor slab (1) constituting the horizontal structure portion (Fh) in one residence space (L) partitioned by the concrete structure (F). In parallel between the upper surface of the upper surface of the stepped stepped portion 4 formed integrally with the lower portion of the structural partition wall 3 constituting the vertical structure wall portion Fv. Both ends of the parallel girder beam S are float-supported in both support states, without being fixed to the concrete structure F via the support means H demonstrated later.

As shown in FIG. 2, FIG. 3, each girder beam S has a cross section which is integrally connected to the vertical part 10 extended in a perpendicular direction through the inclined surface up and down of this vertical part 10. As shown in FIG. The upper and lower ends 11 and 12 are formed in a channel shape, and the plurality of through holes 13 are formed in the vertical portion 10 at intervals in the longitudinal direction.

As shown to FIG. 1, FIG. 2, in the middle part of the longitudinal direction of the some girder beam S, the some reinforcement beam R intersects with the girder beam S, and the girder beam S They are arranged in a line so that they can be fitted. As shown in Figs. 2 and 5, each of the reinforcing beams R is formed by a rectangular angular circumference having a vertically extending cross section, and an operator can easily cut it to a predetermined length in the field. It is composed of wood, synthetic resin and so on. Each of the reinforcing beams R is cut to a length approximately equal to the distance between the sides of the girder beams S adjacent to each other, so that both end surfaces thereof face the sides of the two adjacent girder beams S. FIG. Thus, the end of the reinforcing beam R and the side surface of the middle portion of the girder beam S are integrally connected by the connecting bracket J described below.

As shown in FIGS. 3-5, the said connection bracket J is comprised by metal plates, such as a galvanized steel plate of the same material as the girder beam S, and hinged so that a lower end can be opened and closed. ) And a pair of clamp half bodies 20 and 20 connected by the connection part 21, and a pair of connection beam receiving bodies 22 and 22 fixed to the back surface of these clamp half bodies 20 and 20, respectively. As shown in Fig. 3, each clamp half body 20, 20 is formed in a U-shape so as to follow the side shape of the girder beam S, and connecting tongues are formed on the left and right sides of the upper edge thereof. (20a, 20a) is standing up, and a pair of trapezoid pieces (20b, 20b) of trapezoid shape are integrally provided toward the inside, and the sandwich pieces (20b, 20b) are integrally provided. The uneven saw blade-shaped portions 20c and 20c are formed at the free end edge.

On the other hand, each connecting beam receiver 22 is formed to have a square U-shaped cross section, and is composed of left and right side walls 22a and 22a, a back wall 22b and a bottom wall 22c. . 3 and 4, the rear wall 22b of the pair of connecting beam receivers 22, 22 is provided with rivets 24 on the back surface of the pair of clamp halves 20, 20, respectively. Combined.

In order to connect the edge part of the reinforcement beam R to the intermediate | middle side surface of the girder beam S using the said connection bracket J, left and right 1 so that the intermediate | middle part of the girder beam S may be clamped on both sides. The pair of clamping bodies 20, 20 are rotated in the closing direction around the hinge connecting portion 21, and the pair of connecting tongues 20a, 20a of the clamping bodies 20, 20 are bolted to each other. Combined by). At this time, the saw blade-shaped portions 20c and 20c of the clamping pieces 20b and 20b inside the left and right clamp half bodies 20 and 20 are clamped by the vertical portion 10 of the girder beam S. FIG. In addition, the upper part of the clamp half body 20, 20 is fastened with the screw 27 to the upper end part 11 of the girder beam S. As shown in FIG. Thereby, the connection bracket J is firmly fixed to the intermediate part of the girder beam S. As shown in FIG.

As shown in Fig. 2, the girder beams S and S are connected to the left and right connecting beam holders 22 and 22 of the connecting brackets J respectively fixed to the middle portions of the girder beams S and S adjacent to each other. End portions of the reinforcing beams R and R cut to the length dimension substantially the same as the gap size therebetween are engaged and supported, respectively, and they are joined by the plurality of bolts and nuts 28. In the above manner, a plurality of reinforcing beams R intersect and connect in a line between the intermediate portions of the girder beams S and S that are adjacent to each other by the connecting brackets J, respectively.

In this way, the intermediate part in the longitudinal direction of the plurality of girder beams S can be reinforced by a plurality of reinforcing beams R arranged in a line and a plurality of connecting brackets J connecting them.

As shown in FIG. 1, FIG. 2, on the plurality of girder beams S and the plurality of reinforcement beams R parallel to each other, a plurality of long lines 30 are disposed to cross each other. The upper plate 31 is laid on the joists 30.

A gap is opened between both end surfaces of the plurality of girder beams S and the structure walls of the concrete structure F, so that the cross sections of those girder beams S and the concrete structure F are ) Is not in direct contact with each other, and vibrations applied to the girder beam S do not propagate directly to the concrete structure F. In addition, as shown to FIG. 1, FIG. 2, on the support surface of the girder beam S of the concrete structure F, ie, the capacity | capacitance 2 and the step part 4 of the concrete structure F, several girder is carried out. The edge part of the beam S is float-supported by the support means H demonstrated below.

As shown in FIG. 6, this bottom support means H is the support plate 36 made from the galvanized iron plate which is bent and shape | molded in a pit shape, the dust-proof rubber 37 of concave shape in cross section, and 1 It is comprised as a pair of level adjustment bolts 38 and 38 and a pair of lock nuts 42 and 42 respectively screwed in to these level adjustment bolts 38 and 38, respectively. The support plate 36 has elongated portions 36a and 36a extending substantially horizontally on both the left and right sides thereof, and the level adjusting bolts 38 and 38 are provided on these elongated portions 36a and 36a. Weld nuts 39 and 39 in which the level adjusting bolts 38 and 38 are screwed are welded concentrically with the bolt holes at the same time as the bolt holes through which the holes can penetrate are installed.

In addition, the anti-vibration rubber 37 is seated and fitted to the concave portion of the support plate 36 with some tightening value, and they are not integrally joined at that time. In addition, the pair of leveling bolts 38 and 38 have circular seating plates 40 and 40 on the lower surfaces of the lower heads 38b and 38b, respectively. Neck shaking is freely connected, and disk-shaped cushioning rubbers 41 and 41 are adhered to the lower surfaces of the seat plates 40 and 40.

In order to support the girder beam S on the support surface of the concrete structure F, that is, the capacity 2 and the step 4 using this floor support means H, a pair of level adjustment bolts 38 And 38, the male thread portions 38a and 38a are screwed into the pair of weld nuts 39 and 39, and penetrate the elongated portions 36a and 36a to protrude from the left and right elongated portions 36a and 36a. The lock nuts 42 and 42 are fastened to the free ends of the male thread portions 38a and 38a by screws. As a result, the support plate 36 is fixed by a pair of level adjustment bolts 38 and 38. The seating plates 40, 40 of the pair of leveling bolts 38, 38 are supported on the support surface of the concrete structure F via the cushioning rubbers 41, 41, that is, the capacity 2 or the step 4. Seat on. At this time, the level adjusting bolts 38 and 38 are not fixed on the support surface of the concrete structure F, that is, the capacity 2 or the stepped portion 4. Therefore, the pair of level adjustment bolts 38 and 38 can move freely with respect to the support surface of the concrete structure F, and the bottom face of the support plate 36 has a structure with the concrete structure F. A gap is formed therebetween, and it does not contact with the concrete structure F. FIG. The anti-vibration rubber 37 is tightly fitted to the concave portion of the support plate 36, and the lower surface of the girder beam S is supported on the anti-vibration rubber 37 without being fixed. Therefore, the support plate 36, the pair of level adjustment bolts 38 and 38, the pair of lock nuts 42 and 42 and the anti-vibration rubber 37 which constitute the bottom support means H are all fixed to each other. No work, they are freely separable.

Next, in describing the operation of the first embodiment configured as described above, the plurality of girder beams S do not contact the concrete structure F by the supporting means H, and the supporting surface thereof. That is, the reinforcement beam R which is floated and supported on the capacity | capacitance 2 and the step part 4 through the buffer rubber 41, and is arrange | positioned in the middle part of those girder beams S and intersects these is provided. By connecting by the reinforcing bracket J, the rigidity of the intermediate | middle part which loads the some girder beam S most frequently can be raised. Therefore, even when excessive dynamic load is applied to the center part of the upper plate 31, this dynamic load can be distributedly supported by the plurality of girder beams S, thereby enabling the "balance of force" of the floor, and It is possible to prevent the occurrence of the "bound phenomenon" in which the end of the girder beam S jumps up, to further improve the sound insulation performance, and is particularly effective when the girder beam S is long.

In addition, the reinforcement operation | work of the girder beam S mentioned above prepares the reinforcement bracket J and the reinforcement beam R which can be easily cut | disconnected to predetermined length, and a worker does not require skill, In addition, the above operation can be executed without any problem even if there is a large or small gap between the adjacent girder beams S.

1 and 2, since the reinforcing beam R is not connected to the outer side surfaces of the left and right outermost girder beams S, the reinforcing beam receiving portion is provided on one side of the outer side surface of the connecting bracket J. As shown in FIG. 22 is not connected.

Next, with reference to FIGS. 7-9, the 2nd Example of this invention is described. The same reference numerals are attached to the same elements as those of the first embodiment.

In this second embodiment, the structures of the connecting tool J and the reinforcing beam R 'are slightly different from those of the first embodiment. That is, at the upper edges of the pair of clamping bodies 20 and 20 of the left and right pairs of the connecting brackets J, one connecting tongue 20'a is standing up integrally over the entire width thereof, thereby connecting both ends. The tongue pieces 20'a and 20'a are connected by a set of bolt nuts 26 when the pair of clamp half bodies 20 and 20 are closed. In the reinforcing beam R 'connected to the girder beam S by the connecting bracket J, a portion corresponding to the joist 30 is integrally formed, so that the reinforcing beam R' is connected to the reinforcing beam R of the first embodiment. The volume is formed large. In this second embodiment, the joist beam S to which the reinforcing beam R 'is connected does not require a long line 30, and as shown in FIG. 7, between the cross sections of the reinforcing beam R'. The space occupied by the connecting tongue 20 'and the bolt nut 26 connecting them is secured.

However, this second embodiment does not need to provide a joist 30 on one line of reinforcing beams R 'in addition to exhibiting the same effects as those of the first embodiment. The bolt nut 26 enables connection of the left and right clamp halves 20 and 20 of the connecting bracket J. FIG.

Next, with reference to FIGS. 10-12, the 3rd Embodiment of this invention is described. The same reference numerals are attached to the same elements as in the first and second embodiments.

In this third embodiment, the structure of the connecting bracket J is different from that of the second embodiment, and the other configurations are the same as those of the second embodiment.

As clearly shown in Fig. 11, the left and right pairs of clamp half bodies 20 and 20 of the connecting bracket J of the third embodiment are engaged with each other so as to be openable and detachable by the connecting plate 23. . The connecting plate 23 is formed of a rectangular plate spring, and hook-shaped caught portions 23a and 23a are integrally formed at both right and left ends of the connecting plate 23. On the other hand, the left and right locking pieces 20d and 20d which form a pair are respectively formed in the lower part of a pair of clamp half bodies 20 and 20 at the outward bending at substantially right angle, and the front-end | tip of these left and right locking pieces 20d and 20d, respectively. This is separably fitted to the left and right caught portions 23a and 23a of the connecting plate 23. As indicated by the arrow in Fig. 10, the pair of clamp halves 20, 20 are biased in the closing direction by the spring force of the connecting plate 23 made of the leaf spring. Therefore, as shown in FIG. 10, the pair of clamp halves 20, 20 can be clamped from both sides by the spring force of the connecting plate 23, and after this clamp, When the connecting tongues 20'a and 20'a of the clamp half bodies 20 and 20 are connected by a set of bolts and nuts 26, the connecting bracket J is connected to the girder beam S. The reinforcing beam R 'is fixed to the intermediate beams, and the reinforcing beams R' are fixed to the left and right connecting beam holders 22 and 22 by a plurality of bolts and nuts 28 as in the first and second embodiments. do.

However, the third embodiment also exhibits the same operational effects as those of the second embodiment, and the connecting brackets J have no need for the hinge connection portions 21 of the first and second embodiments, so that the structure is simplified. It can be provided at low cost.

Next, with reference to FIGS. 13-15, the 4th Example of this invention is described. The same reference numerals are attached to the same elements as in the first to third embodiments.

In this fourth embodiment, the structure of the connecting bracket J is different from that of the first embodiment, and the other configurations are the same as those of the first embodiment.

The left and right pairs of clamp halves 20, 20 of the connecting brackets J, which clamp the middle part of the girder beam S, are divided so that their cross sections are formed in a concave shape so as to respectively follow the lateral shape of the girder beam S. In the middle part of these clamp half bodies 20, 20, the long holes 20e, 20e of a horizontal direction are drilled, respectively. The vertical portions 10 of the girder beam S are clamped on both sides by a pair of left and right clamp half bodies 20 and 20, and the long holes 20e and 20e of the left and right clamp half bodies 20 and 20 and the girder After matching the attachment holes 13 and 13 which drilled in the middle part of the beam S, it passes through those holes, and is connected to the intermediate part of the girder beam S by the bolt nut 26. The left and right clamp halves 20 and 20 of (J) are fixed. Paired reinforcing beam receivers 22, 22 are welded to the outer surfaces of the left and right clamp halves 20, 20, respectively. End portions of the reinforcing beams R are respectively supported by the reinforcing beam receiving bodies 22 and fixed by the bolt nuts 28. On the reinforcement beam R and the connection bracket J, the joist 30 is laid.

However, the fourth embodiment also exhibits the same effects as those of the first embodiment.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The same reference numerals are attached to the same elements as in the first to fourth embodiments.

This fifth embodiment is such that the intermediate portions of the plurality of girder beams S can be reinforced by the reinforcing beams R arranged in two rows using the connecting brackets J of the first embodiment. The connecting brackets J are respectively connected to the middle portions of the plurality of girder beams S in two longitudinally spaced intervals, and the connecting brackets J intersect with the girder beams S. Rows of reinforcement beams R are fixed respectively.

However, according to this fifth embodiment, the plurality of girder beams S are reinforced in two rows by their reinforcing beams R and the reinforcing brackets J, so that the stiffness of the floor supporting structure It can be raised further and is especially effective when applied to the floor structure with a large floor area.

Next, with reference to FIGS. 17-19, the 6th Example of this invention is described. The same reference numerals are attached to the same elements as in the first embodiment.

In this sixth embodiment, the double row girder beam SS is supported in parallel on the concrete structure F. As shown in FIG. Each of the double row girder beams SS is formed by sandwiching a plurality of fitting members 50 arranged at intervals in the longitudinal direction between the left and right girder beams S and S that are parallel to each other. The left and right girder beams S and S and the fitting member 50 are integrally coupled by a connecting bolt 51 passing through them and a nut 52 screwed thereto. The fitting member 50 has a hexagonal cross section formed of wood, synthetic resin, or the like, and the inner surfaces of the left and right girder beams S and S are in close contact with the left and right outer surfaces thereof, and the double row girder beam SS ) Can increase its rigidity. The left and right pair of clamp half bodies 20 and 20 of the connection bracket J are connected so that opening and closing is possible by the hinge bracket 53 which has the hinge connection part 21 and 21 to the left and right. The left and right clamp halves 20 and 20 are closed and doubled by engaging the pair of connecting tongues 20a and 20a which are respectively standing on the upper ends of the left and right clamp halves 20 and 20 with the bolt and nut 26. It is integrally coupled to the girder beam (SS). In addition, the upper and lower ends of the left and right clamp halves 20 and 20 and the left and right girder beams S are joined by screws 27. The saw blade-shaped portions 20c, 20c of the sandwich pieces 20b, 20b formed by folding on the inner surfaces of the left and right clamp halves 20, 20 are vertical portions 10, 10 of the girder beams S, S parallel to each other. Digging into the outer surface, respectively, the coupling to the double row girder beam (SS) of the connection bracket (J) is further strengthened. End portions of the reinforcing beams R and R are engaged with and supported by the left and right reinforcement beam receiving members 22 and 22 of the connecting bracket J, and they are integrally coupled by the bolt nuts 28 and 28. On the upper surfaces of the connecting brackets J and the reinforcing beams R, a joist 30 is laid.

According to this sixth embodiment, the recurrent girder beam SS itself has a high strength and reinforces the middle part in the longitudinal direction by the reinforcing beam R and the connecting bracket J, thereby providing rigidity of the floor structure. I can raise it more.

Next, a seventh embodiment of the present invention will be described with reference to FIG. The same reference numerals are attached to the same elements as in the sixth embodiment.

This seventh embodiment uses a spacer 60 instead of the fitting member 50 of the sixth embodiment, and the rest of the configuration is the same as that of the sixth embodiment. A plate-shaped spacer 60 made of an elastic material such as rubber is sandwiched and supported between side surfaces of the double row girder beam SS that face each other in parallel to the left and right girder beams S and S. The upper part of this spacer 60 is clamped between the clamping tongue pieces 20a and 20a of the left and right clamp half bodies 20 and 20, and they are fixed by the bolt nut 26.

Incidentally, the seventh embodiment also exhibits the same operational effects as those of the sixth embodiment.

Next, an eighth embodiment of the present invention will be described with reference to FIG. The same reference numerals are attached to the same elements as those of the sixth and seventh embodiments.

In the eighth embodiment, the connecting section J of the sixth embodiment enables the middle portion of the double row girder beam SS to be reinforced by the reinforcing beam R over two rows. The connecting brackets J are respectively connected to the middle part of the girder beam SS over two rows at intervals in the longitudinal direction thereof, and the two intersecting with the double row girder beam SS to these connecting brackets J. Rows of reinforcement beams R are fixed respectively.

And according to this eighth embodiment, since the intermediate part in the longitudinal direction thereof is reinforced over two rows by the reinforcing beam R and the reinforcing bracket J, the double row girder beam SS has a bottom support structure. It is especially effective if the rigidity can be further increased and applied to a floor structure having a large floor area.

As mentioned above, although the Example of this invention was described, this invention is not limited to the Example, A various Example is possible within the scope of this invention.

For example, in the said Example, although the case where the floor support structure of this invention was implemented to the aggregate housing provided with the concrete structure of capability structure was demonstrated, this is a collective house which has a concrete structure of fixed quantity structure. Of course, you may carry out in the building other than a collective house.

In the floor support structure of buildings, such as an assembly house, this invention raises the rigidity of a girder beam, especially the middle part, and distributes the force, such as dynamic load with respect to a floor, and can be "balanced in force". As a result, the occurrence of "bound phenomenon" is suppressed as much as possible to improve the sound insulation performance.

1 is an overall perspective view of a floor support structure of a first embodiment of the present invention.

Fig. 2 is an enlarged view of the portion around the imaginary line seen from the arrow 2 in Fig. 1 of the first embodiment of the present invention.

3 is an enlarged sectional view taken along line 3-3 of FIG. 2 of a first embodiment of the present invention;

4 is a view seen from the arrow 4 in FIG. 3 of the first embodiment of the present invention;

5 is a cross-sectional view taken along line 5-5 of FIG. 3 of the first embodiment of the present invention;

Fig. 6 is an enlarged view of the portion around the imaginary line seen from the arrow 6 in Fig. 1 of the first embodiment of the present invention.

Fig. 7 is a sectional view of a connecting portion of the girder beam S of the second embodiment of the present invention with the reinforcing beam R. Figs.

Fig. 8 is a view from the arrow 8 in Fig. 7 of the second embodiment of the present invention;

Fig. 9 is a cross sectional view along line 9-9 in Fig. 7 of a second embodiment of the present invention;

Fig. 10 is a sectional view of a connecting portion of the girder beam of the third embodiment of the present invention with the reinforcing beam.

Fig. 11 is a cross sectional view along line 11-11 of Fig. 10 of a third embodiment of the present invention.

Fig. 12 is a cross sectional view along line 12-12 in Fig. 10 of a third embodiment of the present invention.

Fig. 13 is a sectional view of a connecting portion of the girder beam of the fourth embodiment of the present invention with a reinforcing beam.

Fig. 14 is a view from the arrow 14 in Fig. 13 of a fourth embodiment of the present invention;

Fig. 15 is a cross sectional view along line 15-15 in Fig. 13 of a fourth embodiment of the present invention.

Fig. 16 is an overall perspective view of the floor support structure of the fifth embodiment of the present invention.

Fig. 17 is an overall perspective view of the floor support structure of the sixth embodiment of the present invention.

FIG. 18 is an enlarged view of a portion around an imaginary line seen from arrow 18 in FIG. 17 of a sixth embodiment of the present invention;

Fig. 19 is an enlarged cross sectional view along line 19-19 in Fig. 18 of a sixth embodiment of the present invention;

Fig. 20 is a sectional view of a connecting portion of the girder beam of the seventh embodiment of the present invention with a reinforcing beam.

Fig. 21 is an overall perspective view of the floor support structure of the eighth embodiment of the present invention.

Fig. 22 is a diagram showing a state of warpage when dynamic load is applied to an intermediate portion of a conventional girder beam;

* Explanation of symbols for main parts of the drawings

1: floor slab 2: capacity

3: partition 4: stepped portion

10: vertical part 11: upper part

13: through-hole 20: clamp half body

20a: connecting tongue 20b: narrowing piece

20c: saw blade portion 20d: locking piece

20e: long hole 21: hinge connection

22: connection beam receiving 22a: side wall

22b: bottom wall 22c: bottom wall

23: connecting plate 23a: caught part

24: rivet 26: bolt nut

27: screw 28: bolt nut

30: joist 31: top plate

36: support plate 36a: extension part

37: anti-vibration rubber 38: level adjustment bolt

38a: external thread 39: weld nut

40: seat plate 41: cushioning rubber

42: lock nut 50: fitting member

51: connection bolt 52: nut

53: hinge bracket 60: spacer

F: concrete structure

Fh: part of the horizontal structure

Fv: vertical structure part

H: floor support means

J: connecting bracket

L: living space

R: reinforcement beam

S: girder beam

SS: double row girder beam

Claims (5)

A plurality of girder beams S are supported in parallel to the support surface of the concrete structure F, and an upper plate 31 is laid on those girder beams S. In the floor support structure of the building, In the middle part of the longitudinal direction of the said several girder beam S, several reinforcement beams R; R 'which cross | intersect those girder beams S are arrange | positioned in series, and each reinforcement beam R; R A floor-supporting structure for a building, characterized in that the two ends of the ')' and the side surfaces of the girder beams S opposite to each other are integrally joined by a connecting bracket J. 2. The pair of clamp halves 20 and 20 according to claim 1, wherein the connecting bracket J includes a pair of clamp bodies 20 and 20 that clamp both sides of the girder beam S integrally. Floor support of the building, characterized in that it is fixed to the back surface of the clamp half (20, 20), respectively, consisting of connecting beam receiving (22, 22) for supporting the end of the reinforcing beam (R; R '). rescue. The said reinforcement beam (R; R ') is arrange | positioned at the middle part of the longitudinal direction of the girder beam S in one row or multiple rows, The said reinforcement beam R is characterized by the above-mentioned. , The bottom support structure of the building. The floor support structure of a building according to claim 1 or 2, wherein the girder beams (S) are arranged in a plurality of rows in close proximity to each other. The floor support structure of a building according to claim 3, wherein the girder beams S are arranged in a plurality of rows in close proximity to each other.