JP5827805B2 - Structure - Google Patents

Description

  The present invention relates to a structure having a column beam frame.

  Patent Document 1 discloses a set having column beam frames that are erected in the column direction in plan view and that face each other, and a plurality of column columns that are erected between the column beams along the boundary between dwelling units. Housing has been disclosed. The inter-columns and the columns of the column-beam frame and the inter-columns are connected by a small beam.

  In a structure in which a column beam frame is erected on the outer periphery, such as an apartment house of Patent Document 1, the intercolumn and the column of the column beam frame are connected by a beam. It must be aligned with the column of the frame. That is, the position of the stud is constrained by the position of the column of the beam-column frame, or the position of the column of the beam-column frame is constrained by the position of the column, which is one factor hindering free structural design. .

JP 2006-37649 A

  In view of such facts, an object of the present invention is to provide a structure having a column beam frame that can increase the degree of freedom in structural design.

In the first aspect of the invention, a plurality of first column beam frames are arranged between the first column beam frames, which are arranged to face each other and whose opposite ends are not connected by a beam, and the first column beam frames, A second column beam frame arranged such that an extended surface intersects the plane of the first column beam frame; and a concrete provided on the first column beam frame and covering the shape steel and the web of the shape steel. And having a portion where no column is arranged at a position where the construction surface of the first column beam frame and the extended surface of the second column beam frame intersect with each other, and the second column beam The first column beam frame and the second column beam frame are connected by a concrete floor slab so that an out-of-plane force of the frame is transmitted in an in-plane direction of the first column beam frame, edition, are formed in the concrete integrally covering the web of the section steel, said disposed outermost second Column Frame Is a structure which is arranged along the circumference.

In the first aspect of the invention, since the concrete covering the web of the beam provided on the first column beam frame and the floor slab are connected, the force in the out-of-plane direction of the second column beam frame is directly applied from the floor slab. Can be transmitted to the first column beam frame. Accordingly, it is not necessary to match all the column positions of the first column beam frame and the column positions of the second column beam frame with respect to the in-plane direction of the first column beam frame. Therefore, the degree of freedom in structural design can be increased.

  Moreover, since the concrete which comprises a floor slab is integrally formed with the concrete which covers a shape-steel web, a floor slab and a beam can be efficiently constructed by once concrete placement.

The invention of the second aspect is the invention of the first aspect, wherein the floor slab is integrated with the concrete covering the web of shaped steel and the lower part of the beam.

In the invention of the second aspect , by providing a floor slab below the beam, when the floor slab is a balcony, the beam can be used as an outer wall of the balcony.

According to a third aspect of the present invention, in the first or second aspect of the invention, the shape steel is an H-shaped steel, and the concrete covering the web of the shape steel is from the upper surface of the lower flange of the H-shaped steel to the lower surface of the upper flange. Is provided.

In the invention of the third aspect , the rigidity of the beam and the fire resistance can be improved by the concrete covering the shaped steel web as compared with the steel beam.

  Since this invention was set as the said structure, the structure which has a column beam frame which can raise the freedom degree of a structural design can be provided.

It is a perspective view showing a structure concerning an embodiment of the present invention. It is the top view and front view which show the structure which concerns on embodiment of this invention. It is side sectional drawing which shows the floor slab which concerns on embodiment of this invention. It is a top view which shows the modification of the structure based on embodiment of this invention. It is a front view which shows the composite pillar which concerns on embodiment of this invention.

  Embodiments of the present invention will be described with reference to the drawings. In this embodiment, an example is shown in which the structure of the present invention is applied to a frame structure that constitutes a building of an apartment house. However, the structure of the present invention is a building for various uses such as a hospital or a geriatric health facility. It can be applied to the structural frame structure.

  First, the structure which is embodiment of this invention is demonstrated.

  As shown in the perspective view of FIG. 1, the plan view of FIG. 2A, and the front view of FIG. 2B, a structure 10 as a frame structure that constitutes a building of an apartment house is provided on the ground 12. It is built on the reinforced concrete foundation 14 made.

  The structure 10 includes a pair of external frames 16 as first pillar-beam frames that are erected on the foundation 14 and are opposed to each other, and a pair of outer frames that are erected on the foundation 14 and adjacent to the outer frame 16. And a plurality of inner frames 18 as second column beam frames. Adjacent inner frames 18 are arranged to face each other. Further, the inner frame 18 is arranged so that the extended surface of the surface is substantially orthogonal to the surface of the outer frame 16 in plan view.

  The outer frame 16 is a column beam frame in which columns 20 made of H-shaped steel arranged substantially vertically and beams 22 arranged substantially horizontally are assembled in a lattice shape. Joined by butt welding.

  As shown in the side sectional view of FIG. 3A, the beam 22 has an H-section steel 50 and a concrete V that covers the web 52 of the H-section steel 50. The concrete V covering the web 52 is provided on both the left and right sides of the web 52 from the upper surface of the lower flange 54 of the H-section steel 50 to the lower surface of the upper flange 56. Moreover, the stud (not shown) is provided in the web 52, and, thereby, integration of the hardened concrete V and the web 52 is improved.

  The inner frame 18 is a column beam frame in which pillars 24 made of H-section steel arranged substantially vertically and beams 26 made of H-section steel arranged substantially horizontally are assembled in a lattice pattern. The beam 26 is joined by butt welding.

  The columns 24 of the adjacent inner frame 18 that are adjacent to each other are connected by a connecting beam 28. The column 24 and the connecting beam 28 are joined by butt welding. As shown in FIG. 3A, the connecting beam 28 has an H-section steel 58 and a concrete V that covers the web 60 of the H-section steel 58. The concrete V covering the web 60 is provided on both the left and right sides of the web 60 from the upper surface of the lower flange 62 of the H-shaped steel 58 to the lower surface of the upper flange 64. Further, the web 60 is provided with studs (not shown), thereby enhancing the integration of the hardened concrete V and the web 60.

  In addition, a floor slab 32 that forms a living portion 30 upward is installed on the beam 26 of the inner frame 18 that is adjacent to and opposed to the beam 26. The floor slab 32 is formed by placing concrete on a plurality of half precast floor boards that are laid and arranged on the adjacent beams 26 of the inner frame 18, and is supported by the beams 26 and the connecting beams 28. The floor slab 32 may be formed by other methods.

  As shown in FIG. 3A, a reinforced concrete floor slab 34 constituting a balcony of a building is installed on a beam 22 of the outer frame 16 and a connecting beam 28 that connects the columns 24 of the inner frame 18 to each other. . The concrete V constituting the floor slab 32 and the concrete V covering the right side of the web 60 are integrally formed, and the concrete V constituting the floor slab 34 and the concrete V covering the left side of the web 60 are integrally formed. Has been. Thereby, the floor slab 34 and the floor slab 32 are united.

  The concrete V constituting the floor slab 34 is formed integrally with the concrete V that covers the web 52 of the beam 22. Here, “the concrete V forming the floor slab 34 is formed integrally with the concrete V covering the web 52 of the beam 22” means that the concrete V forming the floor slab 34 and the concrete V covering the web 52 are used. Is a state in which these are continuously cast and cured. That is, the configuration is different from that in which the concrete V constituting the floor slab 34 and the concrete V covering the web 52 are separately cast and cured and then joined and integrated.

  The floor slab 34 is integrated with the concrete V covering the web 52 of the H-shaped steel 50 and the lower part of the beam 22 (H-shaped steel 50). That is, the beam 22 is a so-called reverse beam.

  With such a configuration, the outer column 24 of the inner frame 18 (the column 24 arranged outside of the plurality of columns 24 constituting the inner frame 18), the floor slab 32, and the connecting beam 28 are connected to the floor slab 34. Only with the column 20 and the beam 22 of the outer frame 16. That is, the outer frame 16 and the inner frame 18 are connected to the floor slab 34 so that the force in the out-of-plane direction of the inner frame 18 generated in the inner frame 18 is transmitted to the outer frame 16 in the in-plane direction of the outer frame 16. Just connected.

  Next, the operation and effect of the embodiment of the present invention will be described.

  For example, in the case of a structure in which the outer frame 16 and the inner frame 18 are connected by a beam member, the position of the column 20 of the outer frame 16 with respect to the in-plane direction of the outer frame 16 (hereinafter referred to as “X direction”), and the inner frame The positions of the 18 pillars 24 must be matched. On the other hand, in the structure 10 of this embodiment, as shown in FIG. 2A, the concrete V covering the web 52 of the beam 22 provided on the outer frame 16 and the floor slab 34 are connected. Therefore, the force in the out-of-plane direction (X direction) of the inner frame 18 generated in the inner frame 18 can be transmitted directly from the floor slab 34 to the outer frame 16. This eliminates the need to match all the positions of the columns 20 of the outer frame 16 and the positions of the columns 24 of the inner frame 18 with respect to the X direction.

  Therefore, the position of the column 24 of the inner frame 18 can be set without being constrained by the position of the column 20 of the outer frame 16 with respect to the X direction, and the living part constructed between the adjacent inner frames 18 facing each other. It is possible to freely set the layout of 30 units. Further, the position of the column 20 of the outer frame 16 can be set without being restricted by the position of the column 24 of the inner frame 18 with respect to the X direction, and the column 20 of the outer frame 16 is suitable for the structure and the landscape. Can be set to placement. That is, the degree of freedom in structural design can be increased.

  Further, the intermediate pillars 18 (the pillars 24 arranged on the inner side among the plurality of pillars 24 constituting the inner frame 18) are in the in-plane direction of the inner frame 18 (hereinafter referred to as “Y direction”). Since it should just arrange | position so that it can resist with respect to the seismic force of one direction, the arrangement | positioning freedom degree of the stud 24 becomes high. For example, if the beam 26 of the inner frame 18 is supported so as not to have a long span by a large number of pillars 24, the rigidity of the beam 26 is increased, so that the vibration of the floor slab 32 supported by the beam 26 can be reduced. it can.

  Further, since the outer frame 16 and the inner frame 18 are only required to resist the seismic force in one direction (the outer frame 16 is in the X direction and the inner frame 18 is in the Y direction), the outer frame 16 and the inner frame 18. It is possible to achieve an effective structural cross-sectional arrangement (a rectangular structural cross-sectional arrangement having a long side in the direction of the target seismic force) with respect to the bending load acting on the columns 20 and 24 of the above.

  Further, since the outer frame 16 mainly bears the force in the X direction generated in the inner frame 18, the beam formation of the connecting beam 28 connecting the adjacent inner frames 18 can be reduced or eliminated. it can. Thereby, the high sash of the surface which faces the outer frame 16 side in the dwelling unit of the living part 30 constructed between the adjacent inner frames 18 can be achieved.

  Moreover, since the concrete V which comprises the floor slab 34 is integrally formed with the concrete V which covers the web 52 of the beam 22, the floor slab 34 and the beam 22 are efficiently constructed by once placing the concrete. be able to. Moreover, the floor slab 34 and the beam 22 can be joined by performing the construction of the floor slab 34 and the beam 22. Further, the integration of the floor slab 34 and the beam 22 can be enhanced.

  Further, the concrete V covering the web 52 of the beam 22 can improve the rigidity and fire resistance of the beam 22 compared to the steel beam. Moreover, the buckling proof strength with respect to beam lateral buckling can be increased.

  Moreover, when the floor slab 34 is used as a balcony by providing the floor slab 34 below the beam 22 and making the beam 22 a reverse beam, the beam 22 can be used as the outer wall of the balcony. When the floor slab 34 is a balcony, as shown in the side cross-sectional view of FIG. 3B, the beam 22 may be lowered and the handrail 66 may be erected on the upper surface.

  The embodiment of the present invention has been described above.

  As described in the embodiment of the present invention, the outer frame 16 and the inner frame 18 are configured such that the force in the out-of-plane direction (X direction) of the inner frame 18 generated in the inner frame 18 is external to the outer frame 16. What is necessary is just to be connected only by the floor slab 34 so that it may be transmitted to the in-plane direction (X direction) of the frame 16. FIG. That is, at least one of the outer column 24 of the inner frame 18 (the column 24 arranged outside the plurality of columns 24 constituting the inner frame 18), the connecting beam 28, and the floor slab 32, and the outer frame 16 All that connects at least one of the column 20 and the beam 22 need only be connected by the floor slab 34 alone. For example, a configuration in which the inner frame 18 and the floor slab 34 are not directly joined to each other but the inner frame 18 and the floor slab 34 are connected via the connecting beam 28 or the floor slab 32 is also possible. 18 is connected only by the floor slab 34 ”.

  In addition, some or all of the inner frames 18 among the plurality of inner frames 18 may be connected to the outer frame 16 by beam members. That is, in the outer frame 16 and the inner frame 18, the force in the out-of-plane direction (X direction) of the inner frame 18 generated in the inner frame 18 is not necessarily in the in-plane direction (X direction) of the outer frame 16 with respect to the outer frame 16. ) May not be connected only by the floor slab 34 so as to be transmitted to (). If necessary, a beam member is provided to connect the outer frame 16 and the inner frame 18, and the columns of the outer frame 16 and the inner frame 18 with respect to the X direction due to the layout of the living part 30 and the convenience of the structure of the outer frame 16, etc. You may make it not provide a beam member in the location which cannot adjust a position. In this way, the rigidity of the floor slab 34 in the vicinity where the beam member is provided can be reduced.

  Further, when the outer frame 16 is erected after the plurality of inner frames 18 are first erected, the outer column of the inner frame 18 is secured by a temporary member such as an angle member in order to ensure the accuracy of the construction of the outer frame 16. The state where 24 is connected to the outer frame 16 is included in "the outer frame 16 and the inner frame 18 are connected only by the floor slab 34".

  Further, in the embodiment of the present invention, the example in which the columns 24 of the adjacent inner frame 18 that are adjacent to each other are connected by the connecting beam 28, but the X-direction force generated in the inner frame 18 is applied only to the outer frame 16. If the load can be sufficiently paid, the connecting beam 28 may be omitted.

  In the outer frame 16 and the inner frame 18 shown in the embodiment of the present invention, the inner frame 18 is disposed adjacent to the outer frame 16, and the extension surface of the inner frame 18 intersects the surface of the outer frame 16. It suffices if they are arranged so as to. For example, a planar arrangement of the outer frame 16 and the inner frame 18 as shown in the plan views of FIGS. 4 (a) to (d) may be adopted, or the outer frame as shown in FIGS. The planar arrangement of the frame 16 and the inner frame 18 may be freely combined.

  Further, in the embodiment of the present invention, an example in which the structure type of the column 20 and the inner frame 18 of the outer frame 16 is a steel structure is shown. However, the column 20 and the inner frame 18 of the outer frame 16 may have various structural types. can do. For example, the column 20 and the inner frame 18 of the outer frame 16 may be reinforced concrete, steel-framed reinforced concrete, or wooden. Further, the column 20 of the outer frame 16 and the column 24 and the beam 26 of the inner frame 18 are formed of members having shape steel and reinforced concrete integrated with the shape steel web (hereinafter referred to as “concrete / section steel integrated column member”, "Concrete / section steel integrated beam member").

  More preferably, the inner frame 18 is made of steel and the column 20 of the outer frame 16 is a concrete / section steel integrated column member. In this way, the rigidity and fire resistance of the column can be improved compared to the steel column. Further, the buckling strength against column buckling can be increased.

  Moreover, it is preferable that the column 20 and the inner frame 18 of the outer frame 16 are made of steel. In this way, the column 20 and the inner frame 18 of the outer frame 16 can be reduced in weight, and the seismic force acting on the column 20 and the inner frame 18 of the outer frame 16 can be reduced. In addition, the structural sections of the columns 20 and 24 and the beams 22 and 26 of the inner frame 18 can be reduced. Thereby, the space of the residence part 30 can be widened.

  In the embodiment of the present invention, the example in which the columns 20 and 24 of the outer frame 16 and the inner frame 18, and the beams 22 and 26 and the connecting beam 28 are joined by butt welding is shown. If the joining strength is obtained, the pillars 20 and 24 and the beams 22 and 26 and the connecting beam 28 may be joined using other methods (for example, crimping joining and bolt joining using a PC steel rod). In the case of using crimp bonding or bolt bonding using a PC steel rod, the columns 20, 24, the beams 22, 26 and the connecting beam 28 can be efficiently combined without performing complicated operations such as welding and concrete placing. Can be joined. Further, the column beam joining work can be performed without using a skilled worker such as a welder.

  Further, in the embodiment of the present invention, the example in which the balcony is configured by the floor slab 34 is shown, but the corridor of the building may be configured by the floor slab 34. By configuring the balcony or hallway with the floor slab 34, the balcony or hallway can be used as a connection structure of the outer frame 16 and the inner frame 18.

  Of the plurality of inner frames 18 shown in the embodiment of the present invention, the inner frame 18 arranged along the outer periphery of the structure 10 in plan view (for example, the rightmost in FIG. 2A). The inner frame 18 arranged on the left side, the outer pillar 24 of the inner frame 18) arranged on the leftmost side, and the outer frame 16 may be connected by a beam member. Thereby, the integration as the whole structure 10 can be improved, and this beam member can be used as a base of the outer wall.

  Moreover, the pillar 20 of the outer frame 16 shown in the embodiment of the present invention may be a composite pillar in which a plurality of section steels are erected at intervals. For example, as shown in the front view of FIG. 5, a ladder-shaped composite column 20 in which a plurality of standing H-shaped steels 38 are connected by a shape steel 40 may be used. Thereby, the bending proof stress and bending rigidity of a strong axis direction (X direction) can be enlarged.

  Moreover, you may provide an earthquake-resistant member in the construction surface of the inner frame 18 shown by embodiment of this invention. Thereby, the resistance force of the inner frame 18 with respect to the seismic force in the Y direction can be increased. Examples of the earthquake resistant member include a steel brace, a steel plate earthquake resistant wall, a corrugated steel earthquake resistant wall, a steel damping brace, a concrete earthquake resistant wall with a steel frame, a damper, and a concrete earthquake resistant wall. Use of a steel brace, a steel plate earthquake resistant wall, a corrugated steel earthquake resistant wall, and a steel damping brace is preferable because the inner frame 18 can be reduced in weight. Further, a dry wall may be installed on the construction surface of the inner frame 18 so that the layout of the living unit 30 can be changed when the structure 10 is repaired.

  In the embodiment of the present invention, the floor slab 34 is integrated with the concrete V covering the web 52 of the H-shaped steel 50 and the lower part of the beam 22 (H-shaped steel 50). The beam 22 (H-section steel 50) may be provided at any height. Moreover, the concrete V which comprises the floor slab 32, the concrete V which covers the right side of the web 60, the concrete V which comprises the floor slab 34, and the concrete V which covers the left side of the web 60 are integrally formed, and the floor slab is formed. 32 and the floor slab 34 are shown as an example. As shown in FIG. 3B, the floor slab 32 and the floor slab are integrated on the upper surface of the connecting beam 28 made of H-shaped steel 58. 34 may be supported.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to such embodiment at all, Of course, in the range which does not deviate from the summary of this invention, it can implement in a various aspect.

10 Structure 16 Outer frame (first column beam frame)
18 Inner frame (second column beam frame)
22 Beam 34 Floor slab 50 H-section steel (section steel)
52 Web 54 Lower flange 56 Upper flange V Concrete

Claims (3)

A first column beam structure that is disposed to face each other and whose opposite ends are not connected by a beam;
A plurality of second column beam frames arranged between the first column beam frames, and an extended surface of each of the frame surfaces arranged to intersect with the first column beam frame;
A beam provided on the first column beam frame and having a shape steel and a concrete covering the web of the shape steel;
A portion where a column is not disposed at a position where the construction surface of the first column beam frame and the extended surface of the second column beam frame intersect;
A concrete floor slab is used to connect the first column beam frame and the second column beam frame so that an out-of-plane force of the second column beam frame is transmitted in an in-plane direction of the first column beam frame. Concatenate,
The floor slab is formed integrally with concrete covering the shaped steel web, and the second column beam frame arranged on the outermost side is arranged along the outer periphery .   The structure according to claim 1, wherein the floor slab is integrated with the concrete covering the shaped steel web and the lower part of the beam.   The structure according to claim 1 or 2, wherein the section steel is an H-section steel, and the concrete covering the section steel web is provided from the upper surface of the lower flange of the H-section steel to the lower surface of the upper flange. .

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