JPH05331909A - Building method for building skeleton designed to join steel column with bolts - Google Patents

Abstract

PURPOSE:To make it possible to eliminate totally the need for joining steel columns at a job site by welding and shield the joined portion of the steel columns with ease. CONSTITUTION:A connection bedrock 14A1 of a steel column in a first section installed to a bottom skeleton 30 is connected to the bottom skeleton with an anchor bolt inserted into a bolt hole bored on the bedrock. Steel beams 32 and 33 are connected to beams mounting structural steel 15 for the steel column 10A with high strength bolts. A steel column 10B in a second section is erected on the steel column 10A. A connection bedrock 14A2 of the steel column 10A is connected to a connection bedrock 14B1 of the steel column 10B with high strength bolts inserted into bolt holes bored on these bedrocks. A steel beam 35 or a steel beam 36 is connected to the beam mounting structural steel 15 for the steel column 10B with high strength bolts. Connection with this, the steel columns in the third section and the fourth section up to the highest section are erected in the same manner, thereby building a building skeleton having a specified number of stories. Therefore, there is no need for welding connections which require skilled welders and are subjected to weather conditions, which make it possible to simplify on-site welding work and save energy and reduce construction period as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a building structure in which steel pipe columns are joined by bolts, and in particular, a high-strength bolt (referred to as " This is related to the method of constructing a building structure that is joined by high strength bolts).

[0002]

2. Description of the Related Art In a method for constructing a building structure having a pure steel frame structure represented by an office building, a steel tubular column having a square or circular cross section is generally used as a steel column, and an H-shaped steel beam is used as a steel beam. Shaped steel is used, steel beams are joined together by high-strength bolt joining, and after temporary joining, steel tube columns are joined together by welding.

[0003]

In the above-mentioned conventional construction method, since the steel pipe column has a closed type cross section, it cannot be joined by high-strength bolt joining, and in-situ welding is unavoidable. In-situ welding requires complicated work such as attaching backing plate and temporary joint piece to steel pipe column by welding, temporary joining by high-strength bolt joint, main welding, cutting temporary joint piece and finishing cut surface. Work depends on the weather, which is a major obstacle to shortening the construction period. The problem to be solved by the present invention is to provide a method for constructing a building structure in which steel pipe columns are joined by bolt joining, which does not have the drawbacks of the above-mentioned conventional construction methods, in other words, a steel frame on site. It is an object of the present invention to provide a method for constructing a building structure in which the joining by welding of columns can be completely abolished and the joined portions of steel pipe columns can be easily hidden in the slab.

[0004]

The present invention adopts the following construction in order to solve the above-mentioned problems. The structure of the present invention is to form a large number of bolt holes at the upper and lower ends of a steel pipe column having a length corresponding to at least one vertical dimension of a building, weld the connection base, and attach the beam to the steel pipe column. Welding a steel frame for beam attachment to the
The first section steel pipe column is built at the column mounting position of the lower frame, the lower end connecting base of the first section steel frame column is joined to the lower body, and the first section steel tube column for beam mounting steel beam and beam mounting A beam steel frame is arranged between the steel frame and the beam mounting steel frame of the first section steel pipe column, and the beam steel frame is connected by bolting, and the second section steel pipe column is built on the first section steel pipe column. , The bolt passing through the bolt hole of the connection base at the upper end of the steel pipe column of the first section and the bolt hole of the connection base at the lower end of the steel pipe column of the second section, at the upper end of the steel pipe column of the first section The lower end of the steel pipe column is joined by bolt connection, and the beam steel frame is arranged between the beam mounting steel frame of the second section steel pipe column and the beam mounting steel frame to form the beam mounting steel frame of the second section steel pipe column. Beam steel frames are joined by bolts, and in the same manner, steel pipe columns on the upper floor of Section 3, Section 4, etc. are sequentially built on the steel pipe columns of Section 2, and The pipe columns are joined by bolts, and the steel beams corresponding to them are joined by bolts to the beam-attaching steel frames of those steel pipe columns, thereby constructing a building frame with a predetermined number of floors. There is a construction method. In a preferred embodiment, the upper end of the lower tubular steel pipe column and the lower end of the upper tubular steel pipe column are connected to the bolt hole of the connection base at the upper end of the lower steel pipe column and the lower end of the upper steel pipe column. Using high-strength bolts that have passed through the bolt holes of the base, join them by high-strength bolt joining. The beam steel frame arranged between the beam mounting steel frames of the steel pipe columns of each section and the beam mounting steel frame is also joined to the beam mounting steel frames of the steel pipe columns of each section by high-strength bolting.

The length of the steel pipe column of one section is usually set to a length that can be transported by an automobile or the like, for example, a length corresponding to the vertical dimension of two or three floors of a building. The steel pipe column is made of, for example, a steel pipe having a circular or square cross section.
The connection base is formed by forming a steel plate in a size substantially larger than the size of the steel plate so as to substantially correspond to the shape of the cross section of the steel pipe, and forming a large number of bolt holes around the steel plate. The steel frame for beam mounting constitutes a part of the steel beam of the floor corresponding to it, and is usually made of steel having the same dimensions as the steel beam to be joined thereto. Since the steel beam is usually composed of an H-shaped steel frame, the beam mounting steel frame is also composed of the same H-shaped steel frame. In a preferred embodiment,
The steel frame for beam mounting at the top beam mounting position of the section of steel pipe column is
Make sure that the upper part is almost the same height as the connection base,
Weld to the pillar steel frame. The beam mounting steel frames at other beam mounting positions are welded to the beam mounting positions of the steel pipe columns with the uppermost beam mounting steel frame as a reference. In a preferred embodiment in which an H-shaped steel frame is used as the beam-mounting steel frame, the end of the upper flange of the top beam-mounting steel frame of the one-section steel tube column is joined to the upper connecting base, Weld the rest of the top beam mounting steel to the column steel. Beam mounting steel frames at other beam mounting positions are welded to the diaphragm of the steel pipe column. Welding the connecting base to the upper and lower ends of a section of steel pipe column can reinforce the steel pipe column, and by welding the upper flange part of the top beam mounting steel frame to the connecting base at the upper end, The joint portion between the upper end of the lower steel pipe column and the lower end of the upper steel pipe column by the connection base can be easily embedded in the slab.

Diaphragms are provided at the joints of the beam-attaching steel frames of the H-shaped cross section of the steel pipe columns to reinforce the steel pipe columns, and the beam-attaching steel frames are welded to the projecting side portions around each diaphragm. The connection base (base plate) is formed of, for example, a steel plate that is thicker than the thickness of the flange of the steel frame for beam attachment having an H-shaped cross section. The diaphragm is formed of a steel plate having a thickness of the flange of the steel frame for beam attachment having an H-shaped cross section. When the steel pipe column is used as a filled concrete steel pipe column, an opening for concrete filling is provided in the center of the connection base. Make a concrete filling opening in the center of the diaphragm. Alternatively, an annular plate serving as an outer diaphragm is provided outside the steel pipe column at the beam mounting position. The one-section steel column may be formed by welding a long steel pipe column, a short steel pipe column, a diaphragm, etc., as in Examples 1 and 2 described later. In addition, for a steel column of a section, an existing steel pipe with a circular or rectangular cross section is cut into a predetermined length (that is, a length approximately equivalent to the vertical dimension of two or three floors of the building), and An outer diaphragm made of, for example, an annular plate may be formed by welding on the outside of the beam attachment position.

[0007]

Embodiment 1 Embodiment 1 will be described with reference to FIGS. The sections of steel pipe columns 10A, 10B, 10C, ...
As shown in FIGS. 1 to 4, long steel pipes 11A1, 11
A2, 11B1 to 11B3, 11C1, ..., Short steel pipes 12A1, 12A2, 12B1 to 12B3 ,.
., Diaphragm 13, connecting bases 14A1, 14A2,
14B1, 14B2, 14C1, ... And beam-attaching steel frames 15 having an H-shaped cross section are connected and configured. Long steel pipe 11A
1, 11A2, 11B1 to 11B3, 11C1, ...
As shown in FIG. 1 to FIG. 5, a square steel pipe is formed by cutting a square steel pipe into a length substantially corresponding to the floor height dimension minus the beam formation dimension. The short steel pipes 12A1, 12A2, 12B1 to 12B3, ...
3 and connection bases 14A1, 14A2, 14B1, 14B
It is formed by cutting a little shorter than the dimension obtained by reducing the thickness of 2 ... The diaphragm 13 is formed by cutting a steel plate having a thickness of about the thickness of the flange portion of the beam mounting steel frame 15 having an H-shaped cross section into a square shape with one side slightly larger than the size of one side of the square steel pipe. .. Connection boards 14A1, 14A2, 1
4B1, 14B2, 14C1, ... are beam mounting steel frames 1
A steel plate thicker than the thickness of the flange portion of No. 5 is cut into a square having a side larger than one side of a square steel pipe, and a large number of bolt holes 14a are formed around the square.

The first section of the steel pipe column 10A has a length substantially equal to the floor height of the first floor minus the beam formation.
Of the long steel pipe 11A1 is welded to the upper surface of the connection base 14A1, the upper end of the first long steel pipe 11A1 is welded to the lower surface of the first diaphragm 13, and the upper surface of the first diaphragm 13 is welded to the first short steel pipe 12A1. The lower end of the first short steel pipe 12A1 to the upper end of the second diaphragm 13 is welded to the upper surface of the second diaphragm 13 to the dimension of the floor height of the second floor minus the beam formation dimension. The lower end of the second long steel pipe 11A2 having a substantially matched length is welded. The lower surface of the third diaphragm 13 is welded to the upper end of the second long steel pipe 11A2, the lower end of the second short steel pipe 12A2 is welded to the upper surface of the third diaphragm 13, and the second short steel pipe 12A2 is welded.
The lower surface of the second connection base 14A2 is welded to the upper end of the. Then, the ends of the flange portion 15a of the beam-attaching steel frame 15 having an H-shaped cross section, which is a part of the steel beam supporting the floor of the second floor, are welded to the side portions 13a of the first and second diaphragms 13 and the like. The end portion of the web portion 15b is welded to the outer peripheral surface of the first short steel pipe 12A1 or the like. The end of the flange portion 15a of the second beam-attaching steel frame 15 having an H-shaped cross section, which is a part of the steel beam supporting the floor of the third floor, is attached to the third diaphragm 13 and the like.
And side portions 13a, 14b of the second connection base 14A2
Etc., and the end portion of the web portion 15b thereof is welded to the outer peripheral surface of the second short steel pipe 12A2 and the like to complete the first section steel pipe column 10A.

The second section steel pipe column 10B is shown in FIGS.
As shown in, the upper surface of the first connecting base 14B1 is welded to the lower end of the first long steel pipe 11B1 having a length that substantially matches the dimension obtained by subtracting the beam formation dimension from the floor height dimension of the third floor, and The lower surface of the first diaphragm 13 is welded to the upper end of the steel pipe 11B1, and the first short steel pipe 1 is attached to the upper surface of the first diaphragm 13.
The lower end of 2B1 is welded, the lower end of the second diaphragm 13 is welded to the upper end of the first short steel pipe 12B1, and the square steel pipe is attached to the upper face of the second diaphragm 13 from the floor height dimension of the fourth floor to the beam forming dimension. The lower end of the second long steel pipe 11B2 formed by cutting in a manner substantially corresponding to the reduced dimension is welded, the lower face of the third diaphragm 13 is welded to the upper end of the second long steel pipe 11B2, and the third diaphragm 13 is welded. Second short steel pipe 1 on top of
The lower end of 2B2 is welded, the lower end of the fourth diaphragm 13 is welded to the upper end of the second short steel pipe 12B2, and the upper dimension of the fourth diaphragm 13 is the floor height of the fifth floor minus the beam dimension. Third long steel pipe 11B having a length substantially matched with
3 is welded, the lower end of the fifth diaphragm 13 is welded to the upper end of the third long steel pipe 11B3, the lower end of the third short steel pipe 12B3 is welded to the upper face of the fifth diaphragm 13, Second connecting base 1 at the upper end of the short steel pipe 12B3
Weld the bottom surface of 4B2. Then, a beam-attaching steel frame 15B1 having an H-shaped cross section, which is a part of the steel beam supporting the floor of the fourth floor
The ends and the like of the flange portion 15a are welded to the side portions 13a and the like of the first and second diaphragms 13, and the ends of the web portion 15b are welded to the outer peripheral surface and the like of the short steel pipe 12B1. The ends of the flange portion 15a of the beam-attaching steel frame 15 having a H-shaped cross section, which is a part of the steel beam supporting the floor of the fifth floor, are welded to the side portions 13a of the third and fourth diaphragms 13, The end of the web portion 15b is connected to the short steel pipe 12B2.
Weld to the outer peripheral surface, etc. The end portion of the flange portion 15a of the beam-attaching steel frame 15 having a H-shaped cross section, which is a part of the supporting steel beam supporting the floor of the sixth floor, is connected to the side portion 13a of the fifth diaphragm 13 and the second connecting base 14B2. Side part 14b
Etc. and weld the end of the web portion 15b to the short steel pipe 1
The outer peripheral surface of 2B3 is welded to complete the second section steel pipe column 10B. The steel pipe columns 10C of Section 3 and the steel pipe columns of Section 3 and subsequent columns are manufactured in the same manner as the steel pipe columns 10B of Section 2. No connection base may be provided on the upper end of the steel pipe column of the top node. 12 sections of steel pipe columns 10A, 10B, 10C ...
Make the length about m.

Next, steel pipe columns 10A, 10B, 1 having a plurality of sections
A method of constructing a building skeleton using 0C ... will be described. Figure 6
As shown in, the anchor bolts 3 are attached to the undercarriage 30 of the lower frame.
1 is embedded, and the bolt hole 14a of the first (lower end) connection base 14A1 of the steel pipe column 10A of the first section is inserted into the anchor bolt 3.
First, the first section steel pipe column 10A is built, and a nut is screwed into the bolt 31 and tightened to bolt the first section steel pipe column 10A onto the base column 30. Steel beams 32 and 33 for supporting the floors of the second floor and the third floor are attached to the beam-attaching steel frames 15 of the second floor and the third floor, which are welded to the steel pipe column 10A of the first section,
Join by high-strength bolt joining using a backing plate, high-strength bolts, nuts, etc. As shown in FIGS. 6 and 7, the first
Second on the connection base 14A2 at the upper end of the steel pipe column 10A
The section steel pipe column 10B is built, and the bolt holes 14a of the connection base 14A2 of the section 1 steel pipe column 10A and the section 2 steel pipe column 10B are constructed.
The bolt holes 14a of the connection base 14B1 at the lower end of the steel pipe column 10B of the second section at the upper end of the steel pipe column 10A of the first section and the high-strength bolt b is passed through each bolt hole 14a, and the nut is screwed and tightened. The lower end of is connected by high strength bolt connection. As shown in FIG. 6 and FIG. 7, the beam mounting steel frames 15 of the fourth floor, the fifth floor and the sixth floor welded to the steel pipe column 10B of the second section are connected to the beam mounting steel frames 15 of the fourth floor, the fifth floor and the sixth floor. The steel beams 34, 35, 36 that support the floor are joined by high-strength bolt joining using a support plate, high-strength bolts, nuts, and the like.

In a similar manner, the second section steel pipe column 10B
On top of the connecting base 14B2 at the upper end of the column 3C steel pipe column 10C
And the connection base 14B at the upper end of the steel pipe column 10B of Section 2
2 and the connecting base plate 14C1 at the lower end of the steel pipe column 10C of Section 3 are joined by high-strength bolting, and the steel beam for supporting the floor of the upper floor is attached to the steel frame for welding the steel pipe column 10C by a high-strength bolt. Join by joining. In the same manner, on the steel pipe column 10C of the third section, the steel pipe columns of the upper sections of the fourth section, the fifth section, etc. are constructed and joined by high-strength bolting. In addition, a steel frame beam corresponding to the beam mounting steel frame of those steel pipe columns is connected by high-strength bolting to construct a building frame of a predetermined number of floors. According to the construction method of Example 1,
The upper end of the steel pipe column and the lower end of the steel pipe column can be joined by high-strength bolt joints, and the steel frame for beam mounting of the steel pipe column and the steel frame beam can be joined by high-strength bolt joints. Since it does not need to use welding joints that are used at all, the on-site joining of steel pipe columns is simplified, labor saving in the work place,
It is possible to shorten the construction period. Further, the connection bases 14A1, 14A2, 14B1, 14B2, 14B used for connecting the steel pipe columns
Since C is provided at the upper and lower ends of the steel pipe column and the upper flange portion of the beam mounting steel frame 15 is welded to the connection bases 14A2 and 14B2 at the upper end of the steel pipe column, the steel pipe column of one node and the steel pipe of the other node are welded. Joint part 1 consisting of a pair of connection bases with pillars
4A2, 14B1 and 14B2, 14BC can be easily embedded in the slab. Therefore, the steel pipe column can be directly finished by painting to finish the steel frame column, and the finishing cost can be reduced.

The second embodiment is shown in FIGS. 8 and 9, and the steel tube column 10 of the first section, the second section, and the third section in the first embodiment.
Long steel pipes 11 used to make A, 10B, 10C, ...
A1, 11A2, 11B1 to 11B3, 11C1,
.. and the short steel pipes 12A1, 12A2, 12B1 to 12B3 ,. The diaphragm 13 is a steel plate having a thickness of about the thickness of the flange portion of the beam mounting steel frame 15 having an H-shaped cross section, and a circular portion having an outer diameter slightly larger than the outer diameter of the steel pipe is partially cut away. It is formed into the shape shown, and the cut off portion is used as a side portion 13a for flange attachment of the beam attachment steel frame 15. Connection boards 14A1, 14A2, 14B1, 14B2, 14C
1, ... Form a steel plate thicker than the thickness of the flange portion of the beam mounting steel frame 15 into a shape shown in FIG. 8 in which a circular portion having an outer diameter larger than the outer diameter of the steel pipe is cut away. Then
The cut portion is used as a side portion 14b for flange attachment of the beam attachment steel frame 15, and a large number of bolt holes 14a are formed around the side portion 14b. Long steel pipe for making a section of steel pipe column 1
1A1, 11A2, 11B1 through 11B3, 11C
1, ..., Short steel pipes 12A1, 12A2, 12B1 to 12B3, ..., Diaphragm 13, Connection base 14A
1, 14A2, 14B1, 14B2, 14C1, ...
The method of joining the beam attachment steel frames 15 is the same as in the first embodiment. In Examples 1 and 2, the steel tube column is not filled with concrete, but when the steel tube column is made into a filled concrete steel tube column, an opening for concrete filling is provided in the center of the diaphragm 13 and the connection base 14.

[0013]

The present invention has the following effects (a) to (e) by having the structure described in the section of the claims. (A) According to claim 1, the lower end of the steel pipe column of the upper node is attached to the upper end of the steel pipe column of the lower node, the bolt hole of the connection base of the upper end of the lower steel pipe column and the upper steel pipe column. The bolts passed through the bolt holes of the connecting base at the lower end of each can be joined by bolts, and the beam steel frame placed between the steel frame for beam attachment and the steel frame for beam attachment of the steel pipe column of each node Since it can be joined to the beam mounting steel frame of the steel pipe column by bolt joining, it is possible to construct a building frame without using welding joints that require skill and are affected by weather. for that reason,
On-site joining of steel pipe columns etc. is simplified, which enables labor saving and a shorter construction period at the work place. (B) According to the second aspect, the upper end of the steel pipe column of the lower node and the lower end of the steel pipe column of the upper node are connected to the bolt holes of the connecting base at the upper end of the lower steel pipe column and the upper steel pipe. Beams that can be joined by high-strength bolt joints using high-strength bolts that pass through the bolt holes of the connection base at the lower end of the column, and are arranged between the steel frame for beam attachment and the steel frame for beam attachment of the steel pipe column of each section Since the steel frame can be joined to the beam-attaching steel frame of the steel pipe column of each section by high-strength bolting, the joint strength is increased and the on-site joining of the steel pipe column or the like is simplified. (C) According to claims 3 and 4, the upper side of the beam-attaching steel frame at the top of one section and the connecting base at the upper end of the column steel frame have substantially the same height, and the steel pipe columns are joined to each other. The part of the connection base that becomes the part can be embedded and hidden in the slab. Therefore, the coating finish can be directly applied to the steel pipe column, and the finishing cost can be reduced. (D) According to claim 5, the connecting base functions as a diaphragm of the beam attachment portion, and the upper and lower ends of the steel pipe column of the lower node and the lower end of the steel pipe column of the upper node are formed by the pair of connecting bases. The joint portion with and can be easily embedded in the slab. In addition, the structure of the one-section steel pipe column becomes simple, and the production becomes easy. (E) According to the sixth aspect, since the one-section steel-framed column can be formed by cutting a ready-made steel pipe having a circular or square cross section to a predetermined length, the one-section steel-framed column can be manufactured at low cost. ..

[Brief description of drawings]

FIG. 1 is a front view of a steel pipe column of Section 1 of Example 1.

FIG. 2 is a plan view of FIG. 1 and FIG. 5 taken along the line AA and viewed in the direction of the arrow.

FIG. 3 is a plan view of the structure shown in FIGS. 1 and 5 seen from the BB line side in the arrow direction.

FIG. 4 is a plan view of FIG. 1 and FIG. 5 taken along the line C-C and seen in the direction of the arrow.

FIG. 5 is a front view of the second section steel pipe column of the first embodiment.

FIG. 6 is a front view showing an outline of a method for constructing a building structure of Example 1.

FIG. 7 is an enlarged front view of the main part of FIG.

FIG. 8 is a plan view of a portion of a connecting base of a steel pipe column of Example 2 as seen from the same side as the line BB in FIGS. 1 and 5 in the same arrow direction.

FIG. 9 shows the diaphragm portion of the steel pipe column of Example 2 in FIG.
And a plan view taken along the line CC of FIG. 5 and viewed in the direction of the arrow.

[Explanation of symbols]

 10A Section 1 steel tube column 10B Section 2 steel tube column 10C Section 3 steel tube column 13 Diaphragm 13a Side part 14A1 Connection base 14A2 Connection base 14B1 Connection base 14B2 Connection base 14C1 Connection base 14a Bolt hole 14b Side part 15 Beam attachment Steel frame 15a Beam-mounting steel flange 15b Beam-mounting steel web 30 Lower pedestal post 31 Anchor bolts 32 to 36 Steel beam b High-strength bolts

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Mr. Matsuzaki, No. 21-21, Ginza 8-chome, Chuo-ku, Tokyo Stock company Takenaka Corporation Tokyo main store

Claims (6)

[Claims] 1. A connection base having a large number of bolt holes formed at the upper and lower ends of a steel pipe column having a length corresponding to the vertical dimension of at least one floor of a building is welded, and the beam is attached to the beam mounting position of the steel pipe column. Welding the mounting steel frame to construct a one-section steel tube column, and building the first section steel tube column at the column mounting position of the lower frame, joining the connection base at the lower end of the first section steel tube column to the lower body, A beam steel frame is arranged between the beam mounting steel frames of the steel pipe columns of Section 1 and the beam mounting steel frames, and the beam steel frames are joined to the beam mounting steel frames of the steel pipe columns of Section 1 by bolting. The second section steel pipe column is erected on the section steel pipe column, and the bolts are inserted into the bolt holes of the connection base at the upper end of the first section steel pipe column and the bolt holes of the lower connection base of the second section steel pipe column. Then, the lower end of the steel pipe column of the second section is joined to the upper end of the steel pipe column of the first section by bolting, and the steel frame for beam mounting of the second section steel pipe column is connected. A beam steel frame is arranged between the steel frame for mounting, and the beam steel frame is connected to the beam mounting steel frame of the second section steel pipe column by bolting, and in the same manner, on the steel pipe column of the second section. , Sequentially, 3rd section, 4th section, etc., the steel pipe columns of the upper floors are built, these steel pipe columns are joined by bolt connection, and the steel frame corresponding to them is attached to the steel frame for beam mounting of those steel pipe columns. A method for constructing a building structure characterized by constructing a building frame of a predetermined number of floors by joining beams with bolts. 2. A beam mounting method for a steel pipe column, wherein a plurality of bolt holes are formed at the upper and lower ends of a steel pipe column having a length corresponding to the vertical dimension of two or three floors of a building to weld a connecting base to the steel pipe column. The steel frame for beam mounting is welded to the position to construct a one-section steel pipe column, the first-section steel pipe column is built at the column mounting position of the lower frame, and the connecting base at the lower end of the first-section steel pipe column is used as the lower precursor. By connecting with anchor bolts, a beam steel frame is arranged between the beam mounting steel frame of the first section steel pipe column and the beam mounting steel frame, and the beam steel frame is elevated to the beam mounting steel frame of the first section steel pipe column. Connecting by force bolting, building the second section steel tube column on the first section steel tube column, connecting the bolt hole of the connection base of the upper end of the first section steel tube column and the lower end of the second section steel tube column With a high strength bolt that passed through the bolt hole of the base,
The lower end of the second section steel pipe column is joined to the upper end of the first section steel pipe column by high-strength bolting, and the beam steel frame is arranged between the beam mounting steel frame of the second section steel pipe column and the beam mounting steel frame. Then, the beam steel frame is joined to the beam mounting steel frame of the second section steel pipe column by high-strength bolting, and in the same manner, on the second section steel pipe column, sequentially,
Steel pipe columns on the upper floors of Sections 3, 4 and so on are erected, these steel pipe columns are joined by high-strength bolting, and steel beams corresponding to them are attached to the beam mounting steel frames of those steel pipe columns. A method for constructing a building structure, which comprises constructing a building frame having a predetermined number of floors by joining high-strength bolts. 3. A plurality of bolt holes are formed in the upper and lower ends of a steel pipe column having a length corresponding to the vertical dimension of two or three floors of a building to weld a connecting base, and the upper end of the section is welded. Weld the beam mounting steel frame to the beam mounting position of the steel pipe column so that the upper side of the beam mounting steel frame is approximately the same height as the connection base at the upper end of the column steel frame, and construct a section of the steel pipe column. The first section steel pipe column was built at the column mounting position, and the connecting base at the lower end of the first section steel pipe column was joined to the lower body by anchor bolt joining.
A beam steel frame is arranged between the beam mounting steel frame of the section steel pipe column and the beam mounting steel frame, and the beam steel frame is joined to the beam mounting steel frame of the section 1 steel pipe column by high-strength bolting. The second section steel pipe column was built on the section steel pipe column, and the high strength passed through the bolt holes of the connection base at the upper end of the first section steel pipe column and the bolt holes of the connection base at the lower end of the second section steel pipe column. With bolts, the lower end of the second section steel pipe column is joined to the upper end of the first section steel pipe column by high-strength bolting, and between the beam mounting steel frame and the beam mounting steel frame of the second section steel pipe column. A beam steel frame is arranged, and the beam steel frame is connected to the beam mounting steel frame of the second section steel pipe column by high-strength bolting, and in the same manner, on the second section steel pipe column, sequentially, Section, Section 4 ...
・ Steel pipe columns on the upper floor, etc. are built, these steel pipe columns are joined by high-strength bolt joints, and steel beams corresponding to them are joined by high-strength bolt joints to the steel frames for beam mounting of those steel pipe columns. , A method of constructing a building structure characterized by constructing a building frame of a predetermined number of floors. 4. The steel pipe column is composed of a steel pipe having a length corresponding to the vertical dimension of two or three floors of the building, and the connection base is formed larger than that corresponding to the shape of the cross section of the steel pipe. A large number of bolt holes are drilled around the connection base, the connection base is welded to the upper and lower ends of the steel pipe column, and the upper part of the steel frame for beam attachment at the top of the steel pipe column is approximately the same height as the connection base. A steel pipe column according to claim 1, wherein a steel frame for beam mounting is welded to the beam mounting position of the steel pipe column. 5. The steel pipe column is composed of a steel pipe having a length corresponding to the vertical dimension of two or three floors of the building, and the connection base is formed larger than that corresponding to the shape of the cross section of the steel pipe. A large number of bolt holes are drilled around the connection base, and the steel frame for beam attachment is composed of an H-shaped steel frame with the same dimensions as the steel beam to be joined to it, and the connection base is welded to the upper and lower ends of the steel pipe column. The upper flange of the beam mounting steel at the top beam mounting position of the steel pipe column is joined to the connection base, the other part of this top beam mounting steel is welded to the column steel, and other than that A section of steel pipe column, wherein the steel frame for beam mounting at the beam mounting position is welded to the steel pipe column. 6. The steel pipe column according to claim 4 or 5, wherein the steel pipe column is constituted by a steel pipe having a circular or square cross section.