JPH05311735A - Pole-beam structure - Google Patents

Abstract

PURPOSE:To obtain efficient accurate pole-beam structure by a reinforced concrete pole and a steel beam. CONSTITUTION:Beams 3 suspended between poles 2, 2 are composed of structural steel pipes 30 consisting of two steel pipes 31, internal covers 35 are installed near the pole 2 sides in each steel pipe 31, and the insides of the steel pipes 31 are partitioned into placing spaces 29, in which bodies 21 can be moved forward and filled, and spaces 310 remaining in the beams 3. The studs 32 of the steel pipes 31 and main reinforcements 51 for connecting the poles and the beams are disposed previously into the placing spaces 29, these studs and main reinforcements are buried and fixed into the bodies 21 forwarded into the placing spaces 29, and the beams 3 are connected and supported integrally to the poles 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillar / beam structure formed by joining a pillar made of concrete structure and a steel beam made of steel pipe or the like.

[0002]

2. Description of the Related Art Conventionally, in high-rise buildings, since durability against earthquakes and wind pressure is strongly required, steel structures and steel reinforced concrete structures having excellent toughness are widely used for structures such as columns and beams. On the other hand, in middle- and low-rise buildings, reinforced concrete structures were mainly used because economic efficiency is important. However, recently, there has been an increasing movement to adopt a composite structure that uses reinforced concrete structures and other precast materials to take advantage of their respective strengths. It has been demanded.

[0003]

However, in the case of constructing a structure with such a composite structure, when the columns and beams are joined together, the columns and beams are integrally connected to each other. Since it is not possible to secure a sufficient joint strength between the two members unless they are joined together, the joining work is very complicated, and the construction efficiency is correspondingly low. In view of the above circumstances, the present invention uses a reinforced concrete column and a steel beam,
It is possible to easily and properly join the both, and to provide a pillar / beam structure with good construction efficiency.

[0004]

That is, the present invention provides a pillar-beam structure in which a beam (3) is suspended between adjacent pillars (2) and (2) made of concrete material (21). (3) has a steel pipe body (30) of a shape that connects the adjacent columns (2) and (2), and a shielding lid (35) near both ends inside the steel pipe body (30), Spaces (29) and (310) inside the steel pipe body (30) are provided so as to be partitioned, and a pillar is provided in the space (29) inside the steel pipe body (30) closer to the pillar (2) than the shielding lid (35). The connecting means (51) and (32) for connecting the (2) and the beam (3) are provided so as to connect the steel pipe body (30) and the concrete material (21). Further, the steel pipe body (30) includes the adjacent pillars (2),
A plurality of divided pipe bodies (3
1) is integrally connected via the connecting portion (31c) and the connecting pipe body (33) fitted so as to extend over both of the adjacent divided pipe bodies (31) and (31). It may be done. The numbers in parentheses () indicate the corresponding elements in the drawings for the sake of convenience, and therefore the present description is not limited to the description in the drawings. below

The same applies to the column of [Operation].

[0005]

With the above-mentioned structure, the present invention functions so that the pillar (2) integrally supports the beam (3). Further, the connecting pipe body (33) acts so as to connect the plurality of divided pipe bodies (31) with their connecting portions (31c) abutting each other.

[0006]

1 is a sectional side view showing an embodiment of a pillar / beam structure according to the present invention, FIG. 2 is an enlarged view of a pillar / beam joint portion in the pillar / beam structure shown in FIG. 1, and FIG. III, a sectional view taken along the arrow III in FIG. 4, FIG. 4 is a sectional view taken along the line IV, IV in FIG. 1, and FIGS. 5 to 7 are a series of side views showing the construction procedure of the pillar / beam structure shown in FIG.

As shown in FIG. 1, the structure 1 has a pillar 2 which is a vertical member formed in a rectangular cross section.
Each of them is made of reinforced concrete that extends in the vertical direction in FIG. 1, and a plurality of them are erected at predetermined intervals in the horizontal direction in FIG. Further, in the structure 1, a beam 3 which is a horizontal member is suspended and supported between columns 2 which are adjacent to each other on each floor of the structure 1 in the lateral direction of FIG. 1
A plurality of beams are provided side by side in the vertical direction.
The beams 2 and 3 are joined to the beam attachment portion 5 set on each floor so that the beam axis direction of each beam 3 is connected and supported so as to intersect the beam axis direction of the column 2. Therefore, the structure 1 is provided with a plurality of beam attachment portions 5 of the pillars 2 arranged in the vertical direction, the horizontal direction in FIG. 1, and in the direction intersecting the plane of FIG.

As shown in FIG. 1, each pillar 2 has a skeleton body 21 made of concrete which is placed in a rectangular cross section in a form having a predetermined compressive strength. The skeleton body 21 is now on the lower side of FIG. The construction has been completed up to the upper end 21a portion in such a manner that it has been successively spliced from the top to the top. A main bar 22 made of a bar-shaped member such as a reinforcing bar having a predetermined tensile strength is embedded in the body 21 in a predetermined number in a form in which the reinforcing bar direction is oriented in the up-down direction which is the extension direction of the body 21. Further, a plurality of hoop muscles 23 made of the same material as the main muscles 22 are embedded in the body 21 at predetermined intervals in the vertical direction in FIG. 1 so as to connect the adjacent main muscles 22 embedded in the body 21. ing. The main muscles 22 of the skeleton body 21 connected to the hoop muscles 23 are now in a shape protruding from the upper end 21a of the skeleton body 21 toward the sky shown in the upper side of FIG. 1 from the upper end 21a of the
Around the main bar 22 and the hoop bar 23 protruding upward, a mold 9 capable of molding the concrete of the pillar 2 that is spliced to the skeleton 21 via the upper end 21a is assembled and arranged in a box form. It is set up.

As shown in FIG. 1, each beam 3 is composed of a structural steel pipe 30 which is a steel pipe body in which adjacent columns 2 and 2 are connected to each other. Two
A shape in which two steel pipes 31, 31 formed in a rectangular tube shape having a length approximately half the distance L1 between them are fitted into the steel pipes 31, 31 via a joint steel pipe 33 described later. It is configured by connecting with. The two steel pipes 31, 31 are arranged in series in the left-right direction of FIG. 1 with their side end faces 31c, 31c butted to each other. 1, a joint steel pipe 33 for connecting and connecting the steel pipes 31 and 31 adjacent to each other in the left-right direction of FIG. It is provided in a form of covering 31a by a length L2. As shown in FIG. 4, each joint steel pipe 33 has an inner circumference 33 b that is the outer circumference 3 of the steel pipe 31.
The joint steel pipe 31 has a cross-sectional shape substantially along 1a and is formed in a rectangular tube shape so as to be slidable in the left-right direction in FIG.
The left and right end portions 33c, 33c shown in FIG. 1 are already arranged and fixed in such a manner that they are fixed to the outer peripheries 31a, 31a of the steel pipes 31, 31 by welding or the like.

Each steel pipe 3 near both ends of the structural steel pipe 30
As shown in FIG. 2, the inner lid 3 is provided near the end of the column 1 on the side of the column 2.
2 is provided in such a manner that the space inside the steel pipe 31 is divided into the left and right sides in FIG. 2, and the casting space 29 in a shape in which concrete can be later poured and filled is provided on the left side of the inner lid 35 in FIG. It is formed and arranged in the steel pipe 31 by a predetermined length L3 from the end surface 31c. On the right side in FIG. 2 of the inner lid 35, a space 310, which later remains in the beam 3 as a void portion, is formed in the steel pipe 31, and the spaces 310, 310 of the steel pipes 31, 31 adjacent in the left-right direction in FIG. It is in a state of communication.
Further, as shown in FIG. 2 or FIG. 3, in the casting space 29 of the steel pipe 31, a stud 32 that is a connecting means of the pillar 2 and the beam 3 is provided.
2 are mounted by driving in a predetermined number from the upper and lower pipe walls of the steel pipe 31 toward the casting space 29 side. A main bar 51 for connecting the column 2 and the beam 3 and a hoop bar 52 connecting the main bar 51 through the side end surface 31c shown in the form of penetrating left and right in the column 2 in FIG. A predetermined number of them are arranged. The main reinforcements 51 of the beam attachment portion 5 are arranged so as to extend in the left-right direction in FIG. 1 in such a manner that their respective reinforcement arrangements are aligned with the material axis direction of the beams 3, while the hoop reinforcements 52 are shown in FIG. As shown in FIG. 1, each of them surrounds the main bar 51 in a U shape and is arranged at a predetermined pitch in the left-right direction in FIG. The main bar 51 for connecting the pillar 2 and the beam 3 is
The pillar 2 is connected and fixed to the main bar 22 of the pillar 2 by bundling, welding, etc., but the main bar 51 and the hoop bar 52 connecting the main bar 51.
Is still temporarily fixed in the state shown in FIG.
After that, the frame 21 of the pillar 2 and the steel pipe 31 forming the structural steel pipe 30 are connected and embedded in the frame 21.

Therefore, the structural steel pipe 30 constituting the beam 3
Each of the two steel pipes 31 of FIG. 1 has already been completed in a form in which the one side of the side end face 31c is flush with the left or right side face 21b of FIG. 21 are respectively arranged between the upper end 21a of 21 and the lower end of the form 9, and the steel pipe 31 and the skeleton 21 have a main bar 51 and a hoop bar 52 for connecting the post 2 and the beam 3 on the skeleton 21. It is configured so that it can be integrated by being fixedly supported in concrete that is spliced onto the end face 21a. In the embodiment shown in FIG. 1, the steel pipes 31, 31 that are adjacent to each other with the pillar 2 in the beam attachment portion 5 are
A main bar 51 for connecting the pillar 2 and the beam 3 penetrates the pillar 2 so that the both 31, 31 are connected and connected via the pillar 2. A slab 7 (not shown) later made of reinforced concrete or the like is horizontally arranged in a space surrounded by the columns 2 and the beams 3 on the structural steel pipe 30 constituted by the two steel pipes 31, 31 (see FIG. (1) to the left and right and in the front of the paper), and is mounted and supported on the structural steel pipes 30 arranged on all four sides thereof. Therefore, at the four horizontal corners of the slab 7, there are vertical members. The pillar 2 of the book penetrates the slab 7 of each floor in a direction intersecting with the vertical plane of FIG.

Since the structure 1 and the like have the above-mentioned structure, when constructing the beam 3 between the adjacent columns 2 and 2 of the structure 1, first, FIG. 5 is shown. In this way, the frame 21 is driven and constructed up to the beam attachment portions 5 and 5 of the adjacent columns 2 and 2, respectively. Then, now in the state shown in FIG. 5, the main bar 22 is attached to the upper end 21a of the body 21 from the body 21.
Are projected upwards. Therefore, in the beam mounting portion 5 of the column 2 shown on the left side of FIG. 5, a steel pipe 31 is cantilever-supported by the column 2 with the extension direction thereof aligned with the axial direction of the beam 3 as shown by the chain line in FIG. Then, while temporarily fixing it on the upper surface 21a of the skeleton 21 by using a mold 9 or the like described later, the main bar 51 for connecting the column 2 and the beam 3 and the hoop bar 52 are assembled in the steel pipe 31, By appropriately binding the main muscles 51 and the main muscles 22 of the body 21, the main muscles 51
The hoop muscles 52 are connected and supported on the column 2 side. Further, as shown by the alternate long and short dash line in FIG. 6, around the main bar 22 protruding from the upper end 21a of the skeleton body 21, the form 9 is assembled in a shape corresponding to the driving construction shape of the skeleton body 21 to be spliced to the upper end 21a. At the same time, a predetermined number of main muscles 22 and hoop muscles 23 required for the skeleton 21 are assembled and arranged in the form 9 in such a manner that they are appropriately added to the main muscles 22 protruding above the upper end 21a of the constructed skeleton 21. To do.

Then, at the beam mounting portion 5 of the column 2, the steel pipe 31 is now sandwiched between the upper end 21a of the frame 21 and the lower end of the formwork 9, and the steel pipe 31 has the column 2 side. Is temporarily supported on the side of the pillar 2 in a form in which the casting space 29 inside the mold communicates with the inside of the mold 9. In this way, the steel pipe 31 is temporarily supported by the column 2 on the left side of FIG. 6, and at this time, a joint steel pipe 33 is fitted to the steel pipe 31 in advance on the right end side of the steel pipe 31, as indicated by the alternate long and short dash line in FIG. .. The joint steel pipe 33
Can slide left and right with respect to the steel pipe 31 in a state where it is not yet fixed to the outer circumference 31a of the steel pipe 31 by the welding or the like, the joint steel pipe 33 is a steel pipe that is adjacent to the steel pipe 31 in series. This is temporarily fixed to an appropriate position so as not to hinder the positioning and arrangement work of 31. Then, as shown in the right side of FIG. 6, another steel pipe 31 to be disposed between the columns 2 and 2 is provided in the axial direction of the beam 3 whose extension direction matches the extension direction of the steel pipe 31. 6 in the direction of the arrow in FIG. 6 and the other steel pipe 31 is attached to the side end face 31c of the steel pipe 31 which is already temporarily supported by the beam mounting portion 5 of the column 2 on the left side of FIG. 6 and the side end surface 31c shown on the right side of FIG. 6 is appropriately arranged in a form of being aligned with the beam mounting portion 5 of the column 2 on the right side of FIG. And the pillar 2 in the pillar 2 shown on the right side of FIG.
-A main bar 51 and a hoop bar 52 for connecting the beam 3 are appropriately assembled and arranged in the beam attachment portion 5, and the bar 21 is attached to the frame 21.
The main muscles 22 are bound and connected.

In this way, the two steel pipes 31, 31 forming the beam 3 between the columns 2, 2 are temporarily supported by suspension, and thereby the structural steel pipe 30 is integrally formed. Of the steel pipe 31 cantilevered on the right side of the column 2, the joint steel pipe 33 fitted and temporarily fixed as shown by the alternate long and short dash line in FIG.
Straddle both 1 and 31 so as to fit it,
The joint steel pipe 33 hung over the steel pipes 31 and 31,
The outer peripheries 31a and 31a are fixed and integrated by welding or the like. (That is, this state is the state shown in FIG. 1.) In this way, the two steel pipes 31, 31 are connected to the columns 2, 2.
When suspended between the steel pipes 31, 31, the pillars 2,
It is extremely difficult to completely align and match the side end faces 31c and 31c at the joint portions of the two because they are temporarily supported in a cantilevered manner by the two.
The steel pipe 31 is provided in the casting space 29 in the frame 2 as described later.
It can be moved a little until the concrete of 1 is poured and filled, and after both the two steel pipes 31, 31 are positioned and fixed, the joint steel pipe 33 is laterally displaced. By being able to joint both 31, 31, the positioning and fixing of these steel pipes 31, 31 and their joint work can be performed smoothly.

Then, as shown in FIG.
In the pillar 2 on the left side of FIG. 7, concrete is placed in the mold 9. Then, the concrete cast in the mold 9 constitutes a new skeleton 21 in a form of being spliced onto the upper end 21a of the skeleton 21, and the concrete is made into the steel pipe 3
In the placement space 31 partitioned by the inner lid 35 in FIG.
The beam 3 side is also filled so as to enter the length L3 shown in FIG. Then, in the concrete that has entered and filled into the casting space 29, the main bar 51 and the hoop bar 52 for connecting the column 2 and the beam 3 that are connected to the main bar 22 of the column 2 by binding are connected to the structural steel pipe 30.
Since the steel pipe 31 and the skeleton 21 forming the structure are embedded and set in the concrete forming the skeleton 21, the concrete in the casting space 29 is connected to the pillar 2 and the beam 3. Main column 51 and hoop muscle 52 for the pillar 2
It cures in a form that is integral with the side body 21. That is, the construction of the skeleton body 21 of the pillar 2 is completed in the beam attachment portion 21 in a shape in which it is projected by the placement space 29. Further, in the casting space 29, the studs 3 are formed from the upper and lower pipe walls of the steel pipe 31.
Since the stud 3 has a protruding shape, the stud 3
The reference numeral 2 designates a skeleton body 21 of a portion filled in the casting space 29 by casting.
The body 21 and the structural steel pipe 3 are embedded and set in the inside.
No. 0 steel pipe 31 is connected to the pipe wall of the steel pipe 31 with sufficient adhesion, so that the steel pipe 31 forming the beam 3 is sufficient for the frame 21 forming the column 2. The joining strength ensures that the joining is supported in a cantilevered manner.

In this way, also in the beam mounting portion 5 of the column 2 shown on the right side of FIG. 7, two steel pipes constituting the structural steel pipe 30 adjacent to the columns 2 and 2 are formed by repeating the same operation as described above. Each of the 31, 31 is surely cantilevered and supported by the columns 2, 2 adjacent to each other in the left and right direction of FIG. 7. In this way, as described above, the structural steel pipe 30 made of the steel pipes 31, 31 is temporarily supported and fixed in the form of being suspended between the columns 2 and 2, and the casting space 2 of each of the steel pipes 31, 31 is fixed.
The operation of placing the beam 3 between the pillars 2 and 2 is a simple work procedure in which the construction and the construction of the skeleton 21 of the pillar 2 to the pillars 9 and 29 are performed at the same time as the concrete is poured and filled. It is possible to surely perform the work in a very short time without requiring concrete placing work, and thus the pillar 2 and the beam 3 can be joined efficiently and properly. Each of the two steel pipes 31 constituting the structural steel pipe 30 of the beam 3 is surely cantilevered and supported on the side of the column 2 as described above. The space 310 formed inside each of the two steel pipes 31 remains in the beam 3 as a void portion without being filled with concrete,
The self-weight of each steel pipe 31 can be suppressed to an extremely low level, whereby the load acting on the joint steel pipe 33 for connecting the adjacent steel pipes 31 between the columns 2 and 2 can be suppressed to an extremely low level. Further, since the spaces 310, 310 in the steel pipes 31, 31 are left in the beam 3 in a state of communicating with each other, the spaces 310, 310 are used as equipment space, and for example, the space 310 is used for vibration damping. If it is used as a damper installation space, the slab 7 mounted and supported on the beam 3 can be effectively damped. Further, when the pillar 2 and the beam 3 are simply and properly joined in this way, subsequently, the construction and construction of the slab 7 that is supported on the structural steel pipe 30 of the beam 3 joined to the pillar 2, Since the work of decorative coating of the steel pipe 31 on the beam 3 with mortar or the like can be carried out smoothly and quickly, the structure 1 is constructed and finished in a short construction period and while making full use of the advantages of both reinforced concrete construction and steel frame construction. It becomes possible.

[0017]

As described above, according to the present invention,
Pillars 2 and 2 made of concrete material such as the adjacent frame 21
In a pillar / beam structure in which a beam 3 is suspended between
Is a structural steel pipe 30 having a shape for connecting the adjacent columns 2 and 2.
And the like, and a shielding lid such as an inner lid 35 is provided near both ends inside the steel pipe so as to partition the space inside the steel pipe such as the space 29 and the casting space 310. Inside the body, in the space on the column 2 side of the shield lid, the main shaft 51, the stud 3
Since the connecting means for connecting the column 2 and the beam 3 such as 2 is provided by connecting the steel pipe body and the concrete material, the column 2 can integrally support the beam 3. Therefore, if the steel pipe is arranged so as to be supported by the pillar 2 before the concrete material of the pillar 2 is cast and constructed, the concrete material of the pillar 2 will be extended to the shielding lid part of the space inside the steel pipe. The connecting means of the pillar 2 and the beam 3 can be fixed in the concrete material of the pillar 2 in the form of intrusion filling. This makes the beam 3
Since the concrete material is cast and constructed on the pillar 2, it is surely joined and supported to the pillar 2 side by being connected to the pillar 2 through the connecting means, so that the beam 3 is easily and properly joined to the pillar 2. Therefore, the construction efficiency for joining and constructing the pillar / beam structure is extremely excellent. Moreover, since the space inside the steel tube that constitutes the beam 3 is left as a void portion in the beam 3 by the shielding means, the space on the side where the connecting means is not arranged is left in the space, so that the vibration is suppressed in the space. This can be effectively used by installing equipment such as dampers in advance.
Therefore, when a steel material such as a steel pipe is used for the beam 3 and the beam 3 is efficiently joined to the pillar 2 made of a concrete material such as reinforced concrete, a column / beam structure is constructed, and when the beam is joined to the pillar 3. It is possible to provide the structure 1 with a composite structure utilizing the advantages of both the reinforced concrete column and the steel beam to the structure 1 easily with a short construction period, while keeping the complicated work time to a minimum. Moreover, the said steel pipe body WHEREIN: The division pipe body of several steel pipes 31 etc. which are located in a line in the form which connects the said adjacent pillars 2 and 2 is connected through the connection part of the side end surface 31c etc. When configured to be integrally connected through a connecting pipe body such as a joint steel pipe 33 which is fitted so as to straddle both sides, the connecting pipe body makes a plurality of divided pipe bodies, but abuts the connecting portions with each other. It can be connected in a closed shape. Therefore, by setting the connecting portion of the split pipe body at an arbitrary position, the beam 3 is connected to the pillar 2,
When suspended between two, it is possible to obtain an advantageous beam structure that is the most easy to construct and has the least structural burden. Further, by dividing the steel pipe body into the divided pipe bodies, handling such as transportation and storage becomes extremely easy, and the efficiency of construction can be further improved.

[Brief description of drawings]

FIG. 1 is a sectional side view showing an embodiment of a pillar / beam structure according to the present invention.

FIG. 2 is an enlarged view of a column / beam joint portion in the column / beam structure shown in FIG.

3 is a sectional view taken along the line III and III in FIG.

FIG. 4 is a sectional view taken along the line IV and IV in FIG.

5 is a series of side views showing a construction procedure of the pillar / beam structure shown in FIG. 1. FIG.

6 is a series of side views showing a construction procedure of the pillar / beam structure shown in FIG. 1. FIG.

FIG. 7 is a series of side views showing a construction procedure of the pillar / beam structure shown in FIG.

[Explanation of symbols]

 2 ... Pillar 21 ... Concrete material (frame) 3 ... Beam 30 ... Steel tube (structural steel tube) 35 ... Shielding lid (inner lid) 29 ... Space inside steel tube (placing space) 310 ... Space inside the steel pipe (space) 32 ...... Connection means (stud) 51 ...... Connection means (main bar) 31 ...... Split pipe body (steel pipe) 31c ...... Connection part (side end surface) 33 ...... Joint steel pipe

Claims (2)

[Claims] 1. A pillar / beam structure in which a beam is suspended between pillars made of adjacent concrete materials, wherein the beam has a steel pipe body made of a steel material for connecting the adjacent pillars, Shielding lids are provided in the vicinity of both ends inside the body so as to partition the space inside the steel pipe body, and in the space on the column side of the shielding lid inside the steel pipe body, connecting means between columns and beams, the steel pipe A pillar / beam structure constructed by connecting the body and the concrete material. 2. The steel pipe body is a connection in which a plurality of divided pipe bodies arranged in series so as to connect the adjacent pillars are fitted in a manner of straddling both of the adjacent divided pipe bodies through their connecting portions. The pillar / beam structure according to claim 1, wherein the pillar / beam structure is integrally connected through a pipe body.