WO2001090498A1 - Joint structure of building using thin-plate, light-gauge steel - Google Patents

Joint structure of building using thin-plate, light-gauge steel Download PDF

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Publication number
WO2001090498A1
WO2001090498A1 PCT/JP2000/003371 JP0003371W WO0190498A1 WO 2001090498 A1 WO2001090498 A1 WO 2001090498A1 JP 0003371 W JP0003371 W JP 0003371W WO 0190498 A1 WO0190498 A1 WO 0190498A1
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WO
WIPO (PCT)
Prior art keywords
steel
joint
thin
building
bolt
Prior art date
Application number
PCT/JP2000/003371
Other languages
French (fr)
Japanese (ja)
Inventor
Yoshimichi Kawai
Jun Shimizu
Original Assignee
Nippon Steel Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corporation filed Critical Nippon Steel Corporation
Priority to JP2001564373A priority Critical patent/JPWO2001090498A1/en
Priority to CN00813516A priority patent/CN1376227A/en
Priority to PCT/JP2000/003371 priority patent/WO2001090498A1/en
Priority to KR10-2002-7004072A priority patent/KR100511651B1/en
Priority claimed from TW089110291A external-priority patent/TW457325B/en
Publication of WO2001090498A1 publication Critical patent/WO2001090498A1/en
Priority to US10/151,660 priority patent/US20030213194A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/11—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with non-parallel upper and lower edges, e.g. roof trusses
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2415—Brackets, gussets, joining plates
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B1/2403—Connection details of the elongated load-supporting parts
    • E04B2001/2448—Connections between open section profiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B2001/2481—Details of wall panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • E04B2001/2484—Details of floor panels or slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0473—U- or C-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather

Definitions

  • the present invention relates to a joint structure of a building using a thin lightweight steel plate, and more particularly to a joint structure of a building made of earthquake-resistant and wind-resistant steel, and a frame material of a building using the thin lightweight steel plate as a frame material or the like. It relates to a joint structure for connecting steel and steel joists and a bolted truss structure that is the main structure of the roof.
  • the thin-plate lightweight section steel referred to in the present invention refers to each member of a building structure made of a section steel obtained by processing a thin steel sheet having a thickness of 2.3 mm or less.
  • This steel building is formed by forming a thin steel sheet with a thickness of 2.3 mm or less into a shaped steel by roll forming.
  • the building frame is constructed by using shaped or bent shaped steel as a frame material, joist or roof material, and reinforcing each member with screws or connecting each member with screws.
  • the joints between the joists and the frame material and the frame material's joint structure are as follows: frame material 1 forms the upper floor support, and frame material 2 forms the lower floor support The ends of these frame members are connected to the tracks 3 and 4 at right angles in a T-shape, and a joist 5 is bridged between the tracks 3 and 4 in a direction perpendicular to the joist 5. Then, a joist 6 is attached, and a floor 7 is laid directly above the joist 6. A side wall member 8 forming a wall is stretched on the side surface of the joist 5 to form a wall.
  • the frame member 1 and the frame member 2 are not an integral structure penetrating the upper floor and the lower floor, but are an assembly structure. Therefore, there is a space between the joists 5 and 6 between them. In this space, the joists 5 and 6 are connected and abutted at right angles at the joist 6 immediately below the frame 1 and directly above the frame 2. Naturally, the joint at the contacting portion needs to be reinforced. Conventionally, a member 9 made of a thin steel plate obtained by simply bending a flat steel plate at a right angle is screwed or riveted to the joint.
  • the member 9 has a cross-sectional area of only about 50% at most as compared with the joint area for the purpose of weight reduction, and is insufficient in strength.
  • a considerable force is applied to the building structure, and tensile or compressive force acts on the frame material, and the floor material or ceiling material is locally deformed as the joists 5 and 6 are deformed.
  • the house is inclined and the living environment deteriorates.
  • a hole-down metal 21 is used to fix the frame 2 to a steel or concrete base 10.
  • the hole-down hardware 21 is made of a steel material
  • the plate 22 is connected by connecting means such as screws.
  • the hold-down hardware 21 is formed of steel side plates 23 and 24 and a bottom plate 25 attached between the side plates and attached to the sides 23 and 24 described above. In the vicinity of the center of the bottom plate 25, the anchor bolts and the hole-down hardware 21 are tightened by passing the anchor bolt holes of the steel or concrete foundation 10 through the bolt holes 26.
  • the diameter of the bolt holes provided in the bottom plate 25 is the same as or very slightly larger than the diameter of the anchor bolts, so that each member manufactured in advance at the factory, especially the hole-down hardware 21 described above. It is often difficult to assemble because the hole positions and anchor bolt holes do not match.
  • the bottom plate 25 is provided above the hole-down metal member 21 as shown in FIG. 2 (b), the hole-down metal member 21 is deformed when the anchor-bolt tightening is strengthened.
  • both ends of the upper chord 50, 51 and the lower chord 5 made of shaped steel having a thickness of about lmm are connected to the ends of the upper chord, thereby forming a mountain shape.
  • Lattice material 53 that is skewed is attached if necessary, temporarily fixed with a jig, and the joint between the string materials is joined by drilling tapping screws 54.
  • a jig for temporarily fixing the upper chords 50 and 51 and the lower chord or the lattice 53 is required, and this jig and each chord are installed.
  • the joints of each chord are usually screwed with at least four drilling tapping screws, but depending on the size of the roof truss More screws must be used, and a considerable number of screws must be used to obtain the required bonding strength due to the low strength per screw screw, and a maximum of about 20 screws must be used.
  • the amount of screwing work for this is large and inefficient, and it is necessary to accurately arrange each string material for the screwing position alignment. Providing such materials requires a large amount of work in the off-line operation, and because many screws are applied to narrow joints, the strength of the joints is reduced by screwing at small intervals longer than a specified interval. Have a problem. To make matters worse, there is a problem that local buckling occurs because the thickness of each of these chord members is as thin as about 1 mm. Disclosure of the invention
  • the present invention relates to a joint structure of a building using a thin lightweight steel plate, and more particularly to a joint structure of a building made of earthquake-resistant and wind-resistant steel, in which a thin lightweight steel plate is used as a frame material or the like.
  • the present invention provides a joint structure that can solve the above-mentioned problems at once.
  • steel reinforcing members that take into account the reinforcing strength in relation to the cross-sectional area of the frame material, and the joists that form the upper and lower floors are connected to the frame material.
  • the present invention provides a steel joint structure for joining a frame material and a steel or concrete foundation.
  • the present invention provides means for achieving the above-mentioned object, and the gist is as follows.
  • a steel cap having a cross-sectional area equal to or greater than 70% of the cross-sectional area of the above-mentioned steel frame material at the connecting part that connects the steel frame material forming the wall and the steel floor joist.
  • a jointed structure for buildings that uses thin, light-weight shaped steel that features imported and fixed components.
  • a truss structure in which the upper chord, the lower chord and the lattice are assembled in a truss-like shape with thin, lightweight steel, and at least one joint is formed at the joint of the upper chord, the lower chord and the lattice.
  • a thin plate having a through-hole, a structure in which the joining portions of the members are connected to each other to form a joining portion, and a fastener is inserted into the joining through-hole to fasten and fix each member. Building joint structure using lightweight section steel.
  • Figure 1 shows the joint structure of steel frame joists and steel frame members by a conventional method.
  • Figure 2 shows the joint structure between the vertical frame material and the base of a steel building by the conventional method.
  • FIG. 3 is a view showing a joining structure of a vertical frame member and a steel joist of a steel building according to the present invention.
  • FIG. 4 is a diagram showing a joint structure between a vertical frame member and a base of a steel building according to the present invention.
  • FIG. 5 is a diagram showing a joint structure in a truss structure of a steel building according to the conventional method and the present invention.
  • FIG. 3 shows a joining structure for tightly joining the frame members according to the present invention.
  • Frame 1 forms the pillars of the upper floor
  • Frame 2 forms the pillars of the lower floor
  • the ends of these frames are joined to the tracks 3, 4 at right angles to the T-shape.
  • a joist 5 is attached between the tracks 3 and 4
  • a joist 6 is attached in a direction orthogonal to the joist 5, and a floor 7 is laid directly above the joist 6.
  • a side wall material 8 forming a wall is provided on the side of the joist 5.
  • the frame members 1 and 2 are not an integral structure that penetrates the upper and lower floors, but are an assembled structure. Therefore, the joists 5 and 6 are placed between them. There is an intervening space. In this space, the joists 5 and 6 are connected and abut at right angles directly below the frame 1 and immediately above the frame 2. This structure is the same as the embodiment shown in FIG.
  • the major difference from the conventional structure in Fig. 1 is that in the conventional structure, the joist 6 is connected to the side face of the joist 5 at right angles.
  • the steel member 9 is only reinforced with screws or rivets, its structural strength is insufficient during a disaster such as an earthquake.
  • the member 9 has a cross-sectional area of only about 50% at most as compared with the joint area for the purpose of weight reduction, and thus has insufficient strength.
  • considerable force is applied to the building structure, and tensile or compressive force acts on the vertical frame material, and the floor material or ceiling material is locally deformed as the joists 5 and 6 are deformed. Deformation will cause the house to tilt and the living environment to deteriorate.
  • a reinforcing member 9 'made of rope having a cross-sectional area equal to or more than 70% or more than the cross-sectional area of the frame member having a rectangular shape or a groove shape is inserted and fixed.
  • the concrete structure is to attach a steel reinforcing member 9 'having a rectangular shape and a groove shape to the steel reinforcing member.
  • a bottom plate 25 serving as a connecting portion for connecting the frame member 2 and the steel or concrete foundation 10 is provided.
  • the bolt through-hole 27 is provided, and the bolt through-hole 29 in the attachment plate 28 is provided with a bolt through-hole having substantially the same diameter as the bolt diameter.
  • the bolt hole diameter provided on the bottom plate 25 is 1.5 times or more the bolt diameter.
  • a bolt through hole of 24 mm or more and a bolt of 19 mm diameter
  • the diameter of the bolt through-hole is further increased, it is a matter of course that the strength cannot be increased because the strength is reduced.
  • the roof structure according to the present invention has two ends of the upper chord members 50, 51 and the lower chord member 52 made of a thin steel plate having a thickness of 2.3 mm or less.
  • a truss structure which is assembled in a truss shape by being connected to the end of the upper chord material, where a skewed lattice material 53 is attached if necessary, and the upper chord material 50, lower chord material 52 and lattice material 53 are attached.
  • At least one fastener hole 55 is drilled and provided on the ground in advance at the front end joint, and each member joint is overlapped to form a joint joint 56, and the fastener hole 55 is formed.
  • a truss structure is used in which a fastener 57 such as a connecting bolt is fastened to each member to fasten and fix each member.
  • a joint metal part 56 is fitted to a fastener hole position provided in advance at a connecting portion of the upper chord members 50, 51, the lower chord member 52, and the lattice member 53, and at least one joint which can be joined with a connecting bolt is provided.
  • a truss structure in which a metal joint 56 having at least one fastener hole 58, and preferably a member such as a steel washer or a washer having a plate thickness of 1.6 mm or more abuts and is fastened and fixed. Is preferred. It is preferable that the diameter of the through hole of the fastener such as the steel washer or the washer has a large diameter of the bolt head from the viewpoint of increasing the strength.
  • the present invention has an effect on application to a steel house as a building made of earthquake-resistant and wind-resistant steel.
  • the present invention relates to a joining structure of a building using thin lightweight steel, particularly, a joining structure for joining a frame material of a building using thin lightweight steel as a frame material and a steel joist.
  • Bolt-joint truss structure which is the main structure of the structure and roof, can be easily provided, and it is possible to provide a steel building that can withstand strong winds such as large earthquakes and typhoons, and can significantly improve workability. It has the effect of.

Abstract

A joint structure of a building using a thin-plate, light-gauge steel, wherein, especially, a joint structure for tightly joining a building frame member using a thin-plate, light-gauge steel with a steel joist, and a bolt-joined trussed structure serving as a main roof structure are used to provide a steel building that can survive severe earthquakes and strong winds such as typhoons. A joint structure of a building using thin-plate, light-gauge steel formed by inserting and fixing, into and to a connection section for tightly joining a steel frame member forming a wall with a steel joist, a steel reinforcing member having a section area equivalent to or at least 70% of the section area of the steel frame member. Alternatively, a joint structure of a building using a thin-plat, light-gauge steel, which is a trussed structure formed by assembling, in a trussed form, thin-plate, light-gauge steel-made upper chord members, lower chord members and lattice members, and which is constituted by connecting together the joint portions of the upper chord members, lower chord members and lattice members to form a joint unit and by inserting fasteners into joint through holes, formed at least one each in each joint portion of each member, to join and fix each member together.

Description

明 細 書 薄板軽量形鋼を用いた建築物の接合構造 技術分野  Description Jointed structure of buildings using thin, lightweight steel bars
本発明は、 薄板軽量形鋼を用いた建築物の接合構造に関し、 特に 耐震 · 耐風鋼製建築物の接合構造であって、 薄板軽量形鋼を枠材等 と して用いる建築物の枠材と鋼製根太を緊結する接合構造および屋 根の主構造となるボルト接合トラス構造における接合構造に関する ものである。 なお、 本発明でいう薄板軽量形鋼とは板厚 2 . 3 m m 以下の薄鋼板を加工した形鋼による建築構造物の各部材をいう。  TECHNICAL FIELD The present invention relates to a joint structure of a building using a thin lightweight steel plate, and more particularly to a joint structure of a building made of earthquake-resistant and wind-resistant steel, and a frame material of a building using the thin lightweight steel plate as a frame material or the like. It relates to a joint structure for connecting steel and steel joists and a bolted truss structure that is the main structure of the roof. In addition, the thin-plate lightweight section steel referred to in the present invention refers to each member of a building structure made of a section steel obtained by processing a thin steel sheet having a thickness of 2.3 mm or less.
背景技術 Background art
近年、 耐震 · 耐風鋼製建築物が脚光を浴びているが、 この鋼製建 築物は、 板厚 2 . 3 m m以下の薄鋼板をロールフ ォ一 ミ ングで形鋼 に形成し、 そのままの状態或いは曲げ加工した形鋼を枠材、 根太或 いは屋根材と して使用し、 各部材を補強部材或いは各部材間をネジ 接合して建築枠を構築している。 従来、 この鋼製建築物においては 、 各部材間を緊結 ， 接合する接合部が数多く存在している。 例えば 、 上層階根太および下層階根太と枠材を緊結する部位、 枠材同士、 枠材と鋼製またはコンク リ一 ト製基礎を緊結する部位、 および屋根 トラス構造においては上弦材同士を緊結する部位、 上弦材と下弦材 を緊結する部位、 或いは上弦材、 下弦材を連結するラチス材を緊結 する部位である。 そして、 これらの緊結する部位には殆どの場合に おいて補強金物或いは連結金物が補強のために用いられている。 ま た、 屋根構造においては、 板厚 1 m m程度の形鋼による山形の屋根 トラスを構築する場合、 2つの上弦材と 1 つの下弦材およびラチス 材等を三角形に配置して治具等にて仮固定し、 各弦材間の接合部を ドリ リ ングタ ッ ピングねじにより接合されている。 In recent years, buildings made of earthquake-resistant and wind-resistant steel have been in the spotlight, but this steel building is formed by forming a thin steel sheet with a thickness of 2.3 mm or less into a shaped steel by roll forming. The building frame is constructed by using shaped or bent shaped steel as a frame material, joist or roof material, and reinforcing each member with screws or connecting each member with screws. Conventionally, in this steel building, there are many joints for joining and joining each member. For example, the part where the upper and lower joists are tied to the frame material, the frame materials are tied together, the frame material is tied to the steel or concrete foundation, and the roof truss structure is tied to the upper chord material It is the part that binds the upper chord and lower chord, or the lattice that connects the upper chord and lower chord. In most cases, a reinforcing hardware or a connecting hardware is used for reinforcement at these binding parts. In the case of a roof structure, when constructing a mountain-shaped roof truss made of steel with a thickness of about 1 mm, two upper chords, one lower chord and a lattice The materials are arranged in a triangular shape and temporarily fixed with jigs, etc., and the joints between the chords are joined by drilling tapping screws.
上述した各部材間を緊結 · 固定する接合構造について従来より実 施されている接合構造を基に図 1 に基づいて説明する。  The joint structure for fastening and fixing the above-described members will be described based on the joint structure that has been conventionally implemented based on FIG.
先ず、 根太と枠材を緊結する部位、 枠材'同士の接合構造は、 図 1 に示すように、 枠材 1 は上層階の支柱を形成し、 枠材 2 は下層階の 支柱をそれぞれ形成し、 これら枠材の端部は トラ ック 3、 4 と丁字 型に直角に連結され、 更に前記 トラ ック 3、 4 の間には根太 5が梁 渡され、 この根太 5 と直交する方向で根太 6が取り付けられ、 そし て、 この根太 6の直上には床 7が敷設される。 前記根太 5の側面に は壁を形成する側面壁材 8が張られ壁部を形成する。  First, as shown in Fig. 1, the joints between the joists and the frame material and the frame material's joint structure are as follows: frame material 1 forms the upper floor support, and frame material 2 forms the lower floor support The ends of these frame members are connected to the tracks 3 and 4 at right angles in a T-shape, and a joist 5 is bridged between the tracks 3 and 4 in a direction perpendicular to the joist 5. Then, a joist 6 is attached, and a floor 7 is laid directly above the joist 6. A side wall member 8 forming a wall is stretched on the side surface of the joist 5 to form a wall.
前記枠材 1 と枠材 2 とは上層階および下層階を突き抜けた一体構 造ではなく、 組立構造であるが故に両者の間には前記根太 5、 根太 6を介在する空間部が存在する。 この空間部には前記根太 6で、 前 記枠材 1 の直下部、 および枠材 2 の直上部で前記根太 5および根太 6が直角に連結 · 当接している。 この当接する部位の接合部には当 然補強が必要であり、 従来では前記接合部には平鋼板を単に直角に 折り曲げた薄鋼板製の部材 9がビスまたはリベッ ト止されている。  The frame member 1 and the frame member 2 are not an integral structure penetrating the upper floor and the lower floor, but are an assembly structure. Therefore, there is a space between the joists 5 and 6 between them. In this space, the joists 5 and 6 are connected and abutted at right angles at the joist 6 immediately below the frame 1 and directly above the frame 2. Naturally, the joint at the contacting portion needs to be reinforced. Conventionally, a member 9 made of a thin steel plate obtained by simply bending a flat steel plate at a right angle is screwed or riveted to the joint.
しかしながら、 前記部材 9 は軽量化のために接合面積に比較して 断面積が高々 5 0 %程度しかなく強度が不足している。 特に、 大地 震、 強風時には建築構造物に相当の力が加わり、 枠材には引張力、 或いは圧縮力が作用して根太 5、 根太 6 の変形に伴い床材または天 井材も局部的に変形じ、 家屋が傾斜して居住環境が悪化することに なる。  However, the member 9 has a cross-sectional area of only about 50% at most as compared with the joint area for the purpose of weight reduction, and is insufficient in strength. In particular, in the event of a large earthquake or strong wind, a considerable force is applied to the building structure, and tensile or compressive force acts on the frame material, and the floor material or ceiling material is locally deformed as the joists 5 and 6 are deformed. As a result, the house is inclined and the living environment deteriorates.
一方、 図 2 ( a ) 、 ( b ) に示すように、 前記枠材 2を鋼製また はコンク リー ト製基礎 1 0 に固定するためにホールダウン金物 2 1 が使用される。 このホールダウン金物 2 1 は、 前記枠材 2 と鋼製背 板 2 2 とがビス等の連結手段で連結される。 また、 このホールダウ ン金物 2 1 は、 鋼製側板 2 3、 2 4 と、 それら側板の間にあつて前 記側扳 2 3、 2 4に取り付けられた底板 2 5で形成されている。 前 記底板 2 5 の中央部近傍において、 ボルト孔 2 6 に上記鋼製または コンク リ一 ト製基礎 1 0のアンカ一ボルト孔を貫通させてアンカー ボルトとホールダウン金物 2 1 を緊結する。 多くの場合、 前記底板 2 5 に設けたボルト孔の孔径はァンカーボルト径と同径か或いは極 く僅かしか大き くないために、 予め工場で製作した各部材、 特に前 記ホールダウン金物 2 1 の孔の位置とアンカーボルト孔がー致せず に組み立てが困難な場合が多い。 また、 図 2 ( b ) に示すように、 前記底板 2 5 をホールダウン金物 2 1 の上方に設けた場合、 アンカ —ボル ト締め付けを強固にするとホールダウン金物 2 1が変形する ことになる。 On the other hand, as shown in FIGS. 2 (a) and 2 (b), a hole-down metal 21 is used to fix the frame 2 to a steel or concrete base 10. The hole-down hardware 21 is made of a steel material The plate 22 is connected by connecting means such as screws. The hold-down hardware 21 is formed of steel side plates 23 and 24 and a bottom plate 25 attached between the side plates and attached to the sides 23 and 24 described above. In the vicinity of the center of the bottom plate 25, the anchor bolts and the hole-down hardware 21 are tightened by passing the anchor bolt holes of the steel or concrete foundation 10 through the bolt holes 26. In many cases, the diameter of the bolt holes provided in the bottom plate 25 is the same as or very slightly larger than the diameter of the anchor bolts, so that each member manufactured in advance at the factory, especially the hole-down hardware 21 described above. It is often difficult to assemble because the hole positions and anchor bolt holes do not match. When the bottom plate 25 is provided above the hole-down metal member 21 as shown in FIG. 2 (b), the hole-down metal member 21 is deformed when the anchor-bolt tightening is strengthened.
次に、 屋根構造における接合構造について説明する。 従来の屋根 構造においては、 図 5 ( a ) に示すように、 板厚 l m m程度の形鋼 による上弦材 5 0、 5 1 と下弦材 5 の両端を前記上弦材端部に連 結して山形に組み合わせ、 必要により斜行するラチス材 5 3を取付 け、 治具にて仮固定し、 各弦材間の接合部を ドリ リ ングタッ ピング ねじ 5 4 により接合して構成している。 この屋根トラス構造におい ては、 前述の上弦材 5 0、 5 1 と下弦材、 或いはラチス材 5 3の仮 固定のための治具が必要であり、 この治具と各弦材を据えつけるた め、 屋根 トラスの大きさ以上の精度の良い水平面が必要であり、 現 場でそのスペースを確保することは困難であり、 そのため、 地上で 完成させた屋根トラスを天井面まで持ち上げて運搬して設置してい る状況にある。 この完成した屋根トラスは、 その大きさ、 重量のた めハン ドリ ングが困難であるという問題がある。  Next, the joining structure in the roof structure will be described. In the conventional roof structure, as shown in Fig. 5 (a), both ends of the upper chord 50, 51 and the lower chord 5 made of shaped steel having a thickness of about lmm are connected to the ends of the upper chord, thereby forming a mountain shape. Lattice material 53 that is skewed is attached if necessary, temporarily fixed with a jig, and the joint between the string materials is joined by drilling tapping screws 54. In this roof truss structure, a jig for temporarily fixing the upper chords 50 and 51 and the lower chord or the lattice 53 is required, and this jig and each chord are installed. Therefore, it is necessary to provide a horizontal plane with a higher accuracy than the size of the roof truss, and it is difficult to secure that space on site. Therefore, the roof truss completed on the ground is lifted to the ceiling and transported. It has been installed. This completed roof truss has a problem that it is difficult to handle due to its size and weight.
また、 ドリ リ ングタッ ピングねじ 5 4を上弦材 5 0、 5 1 と下弦 材の接合部に打ち込む必要があるが、 各弦材の接合部には通常少な く とも 4 ケ所以上で ドリ リ ングタ ッ ピングねじでビス止めされるが 、 屋根ト ラスの大きさによつてはそれ以上のビス止めが必要である こと、 ビス止め用ねじ 1本当たりの耐力が低いために必要接合強度 を得るために相当量の本数、 最大では 2 0本程度のビス止めが必要 であること、 このためのビス止め作業量が大き く非効率であること 、 前記ビス止め位置合わせのために各弦材を正確に配置する必要が あること、 予めこれらの数のビス止め用孔を各弦材に設けることは オフ ライ ンでの作業量が必要になること、 狭い接合箇所に多くのビ スを打っため所定間隔以上の小さい間隔でのビス打ちによる接合部 強度の低下を招く等、 多くの問題を抱えている。 更に悪いことには 、 これら各弦材の扳厚は 1 m m程度と薄いために局部座屈が発生す るという問題がある。 発明の開示 Also, connect the drilling tapping screw 54 to the upper chord material 50, 51 and the lower chord. Although it is necessary to drive into the joints of the strings, the joints of each chord are usually screwed with at least four drilling tapping screws, but depending on the size of the roof truss More screws must be used, and a considerable number of screws must be used to obtain the required bonding strength due to the low strength per screw screw, and a maximum of about 20 screws must be used. The amount of screwing work for this is large and inefficient, and it is necessary to accurately arrange each string material for the screwing position alignment. Providing such materials requires a large amount of work in the off-line operation, and because many screws are applied to narrow joints, the strength of the joints is reduced by screwing at small intervals longer than a specified interval. Have a problem. To make matters worse, there is a problem that local buckling occurs because the thickness of each of these chord members is as thin as about 1 mm. Disclosure of the invention
本発明は、 薄板軽量形鋼を用いた建築物の接合構造に関し、 特に 耐震 · 耐風鋼製建築物の接合構造であつて、 薄板軽量形鋼を枠材等 と して用いる建築物の接合構造において上述した各問題点を一挙に 解決しう る接合構造を提供するものである。 すなわち、 枠材と鋼製 根太を緊結する接合構造において枠材の断面積との関係で補強強度 を勘案した鋼製補強部材、 および上層階および下層階を形成する根 太と枠材同士を緊結する接合部、 および枠材と鋼製またはコンク リ 一ト製基礎を緊結する鋼製連結金物構造を提供するものである。 更に、 本発明においては、 屋根トラス等におけるボルト接合構造 において屋根勾配の変更にも容易に対応でき、 寸法誤差等によつて も トラス構築が容易で、 さ らには現場施工精度の向上に伴う作業能 率向上が図れる接合構造を提供するものである。 本発明は、 上述した目的を達成する手段を提供するもので、 その 要旨は以下の通りである。 The present invention relates to a joint structure of a building using a thin lightweight steel plate, and more particularly to a joint structure of a building made of earthquake-resistant and wind-resistant steel, in which a thin lightweight steel plate is used as a frame material or the like. The present invention provides a joint structure that can solve the above-mentioned problems at once. In other words, in the joint structure that connects the frame material and the steel joist, steel reinforcing members that take into account the reinforcing strength in relation to the cross-sectional area of the frame material, and the joists that form the upper and lower floors are connected to the frame material. The present invention provides a steel joint structure for joining a frame material and a steel or concrete foundation. Furthermore, in the present invention, it is possible to easily cope with a change in the roof gradient in the bolted joint structure of the roof truss, etc., and it is easy to construct the truss due to dimensional errors, etc. It is intended to provide a joint structure capable of improving work efficiency. The present invention provides means for achieving the above-mentioned object, and the gist is as follows.
( 1 ) 壁を形成する鋼製枠材と鋼製床根太を緊結する連結部に、 前 記鋼製枠材の断面積と同等も しく は 7 0 %以上の断面積を有する鋼 製捕強部材を揷入 · 固定したことを特徵とする薄板軽量形鋼を用い た建築物の接合構造。  (1) A steel cap having a cross-sectional area equal to or greater than 70% of the cross-sectional area of the above-mentioned steel frame material at the connecting part that connects the steel frame material forming the wall and the steel floor joist. A jointed structure for buildings that uses thin, light-weight shaped steel that features imported and fixed components.
( 2 ) 壁を形成する鋼製枠材と、 鋼製またはコ ンク リ ー ト製基礎を ボルトにて緊結する連結部に、 前記ボルト径の 1 . 5倍以上のボル ト貫通孔を有する鋼製連結金物を挿入 · 固定したことを特徴とする 薄板軽量形鋼を用いた建築物の接合構造。  (2) Steel that has a steel frame material that forms the wall and a bolt-through hole that is at least 1.5 times the diameter of the bolt at the joint that connects the steel or concrete foundation with bolts A jointed structure for buildings using thin, lightweight section steel, characterized by inserting and fixing metal fittings made of steel.
( 3 ) 前記連結金物に、 前記ボルト貫通孔と同径も しく は前記ボル ト径より大きめのボルト貫通孔を有する添え板を組み合わせた接合 ，構造と したことを特徴とする （ 2 ) 記載の薄板軽量形鋼を用いた建 築物の接合構造。  (3) The joint according to (2), wherein the connecting hardware is combined with an attachment plate having a bolt through hole having the same diameter as the bolt through hole or a bolt through hole larger than the bolt diameter. This is a joint structure for buildings using thin lightweight steel.
( 4 ) 薄板軽量形鋼の上弦材、 下弦材およびラチス材を トラス状に 組み立ててなる トラス構造であって、 前記上弦材、 下弦材およびラ チス材の接合部に少なく とも 1 つ以上の接合貫通孔を有し、 各部材 接合部同士を連結して接合部を形成し、 かつ前記接合貫通孔にファ スナ一を挿入して各部材を締結 · 固定した構成と したことを特徵と する薄板軽量形鋼を用いた建築物の接合構造。  (4) A truss structure in which the upper chord, the lower chord and the lattice are assembled in a truss-like shape with thin, lightweight steel, and at least one joint is formed at the joint of the upper chord, the lower chord and the lattice. A thin plate having a through-hole, a structure in which the joining portions of the members are connected to each other to form a joining portion, and a fastener is inserted into the joining through-hole to fasten and fix each member. Building joint structure using lightweight section steel.
( 5 ) 前記上弦材、 下弦材およびラチス材の連結接合部に設けた前 記接合貫通孔に合致するように少なく とも 1 つ以上の接合貫通孔を 有する接合金物を当接して各部材を締結 · 固定した構成と したこと を特徴とする （ 4 ) 記載の薄板軽量形鋼を用いた建築物の接合構造 o  (5) Fastening each member by abutting a metal joint having at least one or more joint through-holes so as to match the joint through-holes provided at the joint between the upper chord, lower chord and lattice. · The joint structure of the building using the thin and light section steel described in (4), characterized in that the structure is fixed o
( 6 ) 前記接合金物が板厚 1 . 6 m m以上の鋼製座金またはヮ ッ シ ヤーであることを特徴とする （ 5 ) 記載の薄板軽量形鋼を用いた建 築物の接合構造。 (6) The building using a thin, lightweight section steel according to (5), wherein the metal joint is a steel washer or a sash having a plate thickness of 1.6 mm or more. Building joint structure.
( 7 ) ( 1 ) 〜 （ 6 ) のいずれかの項に記載の薄板軽量形鋼を用い た建築物の接合構造を有することを特徴とするスチールハウス。 図面の簡単な説明  (7) A steel house having a joint structure for a building using the thin lightweight steel plate according to any one of (1) to (6). BRIEF DESCRIPTION OF THE FIGURES
図 1 は、 従来法による鋼製建築物の縦枠材、 鋼製根太の接合構造 を示す図。  Figure 1 shows the joint structure of steel frame joists and steel frame members by a conventional method.
図 2 は、 従来法による鋼製建築物の縦枠材と土台の接合構造を示 す図。  Figure 2 shows the joint structure between the vertical frame material and the base of a steel building by the conventional method.
図 3 は、 本発明による鋼製建築物の縦枠材、 鋼製根太の接合構造 を示す図。  FIG. 3 is a view showing a joining structure of a vertical frame member and a steel joist of a steel building according to the present invention.
図 4 は、 本発明による鋼製建築物の縦枠材と土台の接合構造を示 す図。  FIG. 4 is a diagram showing a joint structure between a vertical frame member and a base of a steel building according to the present invention.
図 5 は、 従来法および本発明による鋼製建築物の トラス構造にお ける接合構造を示す図。 発明を実施するための最良の形態  FIG. 5 is a diagram showing a joint structure in a truss structure of a steel building according to the conventional method and the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
次に、 本発明の実施の形態について図面に基づいて説明する。 図 3 は、 本発明による各枠材間を緊結 · 接合する接合構造を示し たものである。 図 3 において、 枠材 1 は上層階の支柱を形成し、 枠 材 2 は下層階の支柱をそれぞれ形成し、 これら枠材の端部は トラ ッ ク 3、 4 と T字型に直角に接合し、 更に前記 トラ ック 3、 4の間に は根太 5が取付けられ、 更に、 前記根太 5 と直交する方向で根太 6 が取り付けられ、 そして、 この根太 6 の直上には床 7が敷設される 。 一方、 根太 5 の側面には壁を形成する側面壁材 8が張られる。 前 記枠材 1 と枠材 2 とは上層階および下層階を突き抜けた一体構造で はなく、 組立構造であるが故に両者の間には前記根太 5、 根太 6を 介在する空間部が存在する。 この空間部には、 前記枠材 1 の直下部 、 および枠材 2 の直上部で前記根太 5および根太 6が直角に連結 · 当接している。 この構造は図 1 に示した態様と同じである。 Next, embodiments of the present invention will be described with reference to the drawings. FIG. 3 shows a joining structure for tightly joining the frame members according to the present invention. In Fig. 3, Frame 1 forms the pillars of the upper floor, Frame 2 forms the pillars of the lower floor, and the ends of these frames are joined to the tracks 3, 4 at right angles to the T-shape. Further, a joist 5 is attached between the tracks 3 and 4, a joist 6 is attached in a direction orthogonal to the joist 5, and a floor 7 is laid directly above the joist 6. . On the other hand, on the side of the joist 5, a side wall material 8 forming a wall is provided. The frame members 1 and 2 are not an integral structure that penetrates the upper and lower floors, but are an assembled structure. Therefore, the joists 5 and 6 are placed between them. There is an intervening space. In this space, the joists 5 and 6 are connected and abut at right angles directly below the frame 1 and immediately above the frame 2. This structure is the same as the embodiment shown in FIG.
しかし、 図 1 における従来構造と大きく相違する点は、 従来構造 では、 根太 6が根太 5の側面と直角に連結 · 当接している接合部に は平鋼板を単に直角に折り曲げただけの薄鋼板製の部材 9がビスま たはリベッ ト止された補強がなされているのみであるため、 地震等 の災害時には構造的に強度が不足する。 すなわち、 前記部材 9 は軽 量化のために接合面積に比較して断面積が高々 5 0 %程度しかなく 強度が不足している。 特に、 大地震、 強風時には建築構造物に相当 の力が加わり、 縦枠材には引張力、 或いは圧縮力が作用して根太 5 、 根太 6 の変形に伴い床材または天井材も局部的に変形し、 家屋が 傾斜して居住環境が悪化することになる。  However, the major difference from the conventional structure in Fig. 1 is that in the conventional structure, the joist 6 is connected to the side face of the joist 5 at right angles. Since the steel member 9 is only reinforced with screws or rivets, its structural strength is insufficient during a disaster such as an earthquake. In other words, the member 9 has a cross-sectional area of only about 50% at most as compared with the joint area for the purpose of weight reduction, and thus has insufficient strength. In particular, in the event of a large earthquake or strong wind, considerable force is applied to the building structure, and tensile or compressive force acts on the vertical frame material, and the floor material or ceiling material is locally deformed as the joists 5 and 6 are deformed. Deformation will cause the house to tilt and the living environment to deteriorate.
そこで、 本発明における補強接合構造では、 矩形状、 溝形状の形 状を有する前記枠材の断面積と同等もしく は 7 0 %以上の断面積を 有する綱製補強部材 9 ' を挿入 ' 固定したものであり、 その具体的 構造は、 図 3 の引出し · 拡大部に示したように、 鋼製補強部材を矩 形状、 溝形状の形状を有する鋼製補強部材 9 ' を取り付けるもので ある。 このような断面積の大きい鋼製補強部材 9 ' を取付けること により、 例えば、 震度 5以上の大地震や風速 3 0 m / s e c以上の 暴風雨にも十分耐えることが可能になる。 しかしながら、 前記鋼製 補強部材 9 ' の枠材の断面積の 1 0 0 %以上を超えると重量が嵩ん だり、 接合部が強固になり過ぎることから、 前記鋼製補強部材 9 ' の断面積は枠材の断面積と同等もしく は 7 0 %以上が好ま しい。 一 方、 本発明における鋼製建築物の基礎の固定に当たっては、 図 4 に 示すように、 枠材 2 と鋼製またはコンク リー ト製基礎 1 0を緊結す る連結部となる底板 2 5 に、 好ま しく は、 ボルト径の 1 . 5倍以上 のボルト貫通孔 2 7を設け、 かつ、 添え板 2 8 にボルト貫通孔 2 9 がボルト径と同程度のボルト貫通孔を設けるものである。 ここで、 底板 2 5 に設けるボルト孔径をボルト径の 1 . 5倍以上、 例えば、 1 6 m m径のボルトに対しては 2 4 m m以上のボルト貫通孔を、 ま た 1 9 m m径のボルトに対しては 2 8 . 5 m m以上のボルト貫通孔 とすることで、 施工誤差を吸収できるようになる。 このボルト貫通 孔径をより大きく した場合には、 当然のことながら強度低下が起こ るために無闇に大き くできないことは勿論である。 Therefore, in the reinforcing joint structure according to the present invention, a reinforcing member 9 'made of rope having a cross-sectional area equal to or more than 70% or more than the cross-sectional area of the frame member having a rectangular shape or a groove shape is inserted and fixed. As shown in the drawing / enlarged portion of FIG. 3, the concrete structure is to attach a steel reinforcing member 9 'having a rectangular shape and a groove shape to the steel reinforcing member. By attaching such a steel reinforcing member 9 ′ having a large cross-sectional area, it is possible to sufficiently withstand, for example, a large earthquake with a seismic intensity of 5 or more and a storm with a wind speed of 30 m / sec or more. However, if it exceeds 100% of the cross-sectional area of the frame member of the steel reinforcing member 9 ′, the weight increases and the joint becomes too strong, so that the cross-sectional area of the steel reinforcing member 9 ′ is increased. Is preferably equal to the cross-sectional area of the frame material or 70% or more. On the other hand, in fixing the foundation of the steel building in the present invention, as shown in FIG. 4, a bottom plate 25 serving as a connecting portion for connecting the frame member 2 and the steel or concrete foundation 10 is provided. , Preferably at least 1.5 times the bolt diameter The bolt through-hole 27 is provided, and the bolt through-hole 29 in the attachment plate 28 is provided with a bolt through-hole having substantially the same diameter as the bolt diameter. Here, the bolt hole diameter provided on the bottom plate 25 is 1.5 times or more the bolt diameter.For example, for a bolt of 16 mm diameter, a bolt through hole of 24 mm or more, and a bolt of 19 mm diameter By using a bolt through hole of 28.5 mm or more, it is possible to absorb construction errors. When the diameter of the bolt through-hole is further increased, it is a matter of course that the strength cannot be increased because the strength is reduced.
また、 本発明による屋根構造は、 図 5 ( b ) に示すように、 板厚 2 . 3 m m以下の薄鋼板からなる形鋼による上弦材 5 0、 5 1 と下 弦材 5 2の両端を前記上弦材端部に連結して トラス状に組み立てて なる トラス構造であつて、 必要により斜行するラチス材 5 3を取付 け、 前記上弦材 5 0、 下弦材 5 2およびラチス材 5 3の先端接合部 に少なく とも 1つ以上のフ ァスナー孔 5 5を予め地上にて穿孔して 設け、 各部材接合部同士を重合して連結接合部 5 6を形成し、 かつ 前記フ ァスナー孔 5 5 に連結ボルト等のフ ァスナー 5 7を揷人して 各部材を締結 · 固定した トラス構造とする。 更に、 上記上弦材 5 0 、 5 1、 下弦材 5 2およびラチス材 5 3 の連結部には接合金物 5 6 を予め設けたフ ァスナー孔位置に合致させ、 連結ボルトで接合可能 な少なく とも 1つ以上のフ ァスナー孔 5 8を有する接合金物 5 6、 好ま しく は、 板厚 1 . 6 m m以上の鋼製座金或いはワ ッ シャー等の 部材を当接して緊結 ， 固定した トラス構造とすることが好ま しい。 なお、 前記鋼製座金或いはヮ ッ シャ一等のフ ァスナ一貫通孔の径は ボルト頭部の径ょり も大きいものが強度上昇の面から好ま しい。  Further, as shown in FIG. 5 (b), the roof structure according to the present invention has two ends of the upper chord members 50, 51 and the lower chord member 52 made of a thin steel plate having a thickness of 2.3 mm or less. A truss structure which is assembled in a truss shape by being connected to the end of the upper chord material, where a skewed lattice material 53 is attached if necessary, and the upper chord material 50, lower chord material 52 and lattice material 53 are attached. At least one fastener hole 55 is drilled and provided on the ground in advance at the front end joint, and each member joint is overlapped to form a joint joint 56, and the fastener hole 55 is formed. A truss structure is used in which a fastener 57 such as a connecting bolt is fastened to each member to fasten and fix each member. In addition, a joint metal part 56 is fitted to a fastener hole position provided in advance at a connecting portion of the upper chord members 50, 51, the lower chord member 52, and the lattice member 53, and at least one joint which can be joined with a connecting bolt is provided. A truss structure in which a metal joint 56 having at least one fastener hole 58, and preferably a member such as a steel washer or a washer having a plate thickness of 1.6 mm or more abuts and is fastened and fixed. Is preferred. It is preferable that the diameter of the through hole of the fastener such as the steel washer or the washer has a large diameter of the bolt head from the viewpoint of increasing the strength.
このような構成を有する本発明による建築物の屋根構造において は、 接合する部材を透孔の位置合わせ行うだけで正確に配置できる ため現場組み立て作業が大幅に改善され、 しかも、 従来ではビス 5 〜 6本で接合していたものが、 1本のボルトで簡単に接合できるた め接合作業が著しく軽減させる。 In the roof structure of a building according to the present invention having such a configuration, since the members to be joined can be accurately arranged only by aligning the through holes, the on-site assembling work is greatly improved. What used to be joined with ~ 6 bolts can be easily joined with one bolt, greatly reducing joining work.
なお、 本発明は耐震 ·耐風鋼製建築物と してスチールハウスへの 適用に効果を有するものである。 産業上の利用可能性  The present invention has an effect on application to a steel house as a building made of earthquake-resistant and wind-resistant steel. Industrial applicability
以上述べたように、 本発明は、 薄板軽量形鋼を用いた建築物の接 合構造において、 特に、 薄板軽量形鋼を枠材等として用いる建築物 の枠材と鋼製根太を緊結する接合構造および屋根の主構造となるボ ル ト接合 トラス構造が容易に提供でき、 特に大地震や台風等の強風 にも十分耐えうる鋼製建築物を提供可能で、 しかも作業性が大幅に 改善できるという効果を有する。  INDUSTRIAL APPLICABILITY As described above, the present invention relates to a joining structure of a building using thin lightweight steel, particularly, a joining structure for joining a frame material of a building using thin lightweight steel as a frame material and a steel joist. Bolt-joint truss structure, which is the main structure of the structure and roof, can be easily provided, and it is possible to provide a steel building that can withstand strong winds such as large earthquakes and typhoons, and can significantly improve workability. It has the effect of.

Claims

請 求 の 範 囲 The scope of the claims
1 . 壁を形成する鋼製枠材と鋼製床根太を緊結する連結部に、 前 記鋼製枠材の断面積と同等もしく は 7 0 %以上の断面積を有する鋼 製補強部材を揷入 · 固定したことを特徴とする薄板軽量形鋼を用い た建築物の接合構造。 1. A steel reinforcing member having a cross-sectional area equal to or greater than 70% of the cross-sectional area of the above-mentioned steel frame material is connected to the joint between the steel frame material forming the wall and the steel floor joist. Introduced · A jointed structure of buildings using thin, lightweight section steel that is fixed.
2 . 壁を形成する鋼製枠材と、 鋼製またはコンク リー ト製基礎を ボル トにて緊結する連結部に、 前記ボル ト径の 1 . 5倍以上のボル ト貫通孔を有する鋼製連結金物を挿入 · 固定したことを特徴とする 薄板軽量形鋼を用いた建築物の接合構造。  2. A steel frame material that has a bolt through-hole that is at least 1.5 times as large as the bolt diameter at the joint that connects the steel frame material that forms the wall and the steel or concrete foundation with a bolt. A jointed structure for buildings using thin, lightweight section steel, characterized by inserting and fixing connecting hardware.
3 . 前記連結金物に、 前記ボルト貫通孔と同径も しく は前記ボル ト径より大きめのボルト貫通孔を有する添え板を組み合わせた接合 構造と したことを特徵とする請求項 2記載の薄板軽量形鋼を用いた 建築物の接合構造。  3. The light weight of the thin plate according to claim 2, wherein the connecting metal has a joining structure in which an attachment plate having a bolt through hole having the same diameter as the bolt through hole or a bolt through hole larger than the bolt diameter is combined. A joint structure for buildings using shaped steel.
4 . 薄板軽量形鋼の上弦材、 下弦材およびラチス材を ト ラス状に 組み立ててなる ト ラス構造であって、 前記上弦材、 下弦材およびラ チス材の接合部に少なく とも 1 つ以上の接合貫通孔を有し、 各部材 接合部同士を連結して接合部を形成し、 かつ前記接合貫通孔にファ スナーを挿入して各部材を締結 ' 固定した構成と したことを特徴と する薄板軽量形鋼を用いた建築物の接合構造。  4. A torus structure in which the upper chord material, lower chord material and lattice material are assembled into a torus in a thin lightweight steel plate, and at least one or more joints between the upper chord material, lower chord material and lattice material are provided. A thin plate having a joining through hole, wherein each member is joined to form a joining portion by connecting the joining portions, and a fastener is inserted into the joining through hole to fasten and fix each member. Building joint structure using lightweight section steel.
5 . 前記上弦材、 下弦材およびラチス材の連結接合部に設けた前 記接合貫通孔に合致するように少なく とも 1 つ以上の接合貫通孔を 有する接合金物を当接して各部材を締結 · 固定した構成と したこと を特徴とする請求項 4記載の薄板軽量形鋼を用いた建築物の接合構 5. Fastening each member by contacting a metal joint having at least one joint through hole so as to match the joint through hole provided at the joint between the upper chord material, the lower chord material and the lattice material. The joint structure of a building using the thin lightweight steel plate according to claim 4, wherein the joint structure is fixed.
¾. o ¾. O
6 . 前記接合金物が板厚 1 . 6 m m以上の鋼製座金またはヮ ッ シ ヤーであることを特徵とする請求項 5記載の薄板軽量形鋼を用いた 建築物の接合構造。 6. The thin, lightweight steel plate according to claim 5, wherein the metal joint is a steel washer or a sash having a plate thickness of 1.6 mm or more. Building joint structure.
7 . 請求項 1 〜 6記載のいずれかの項に記載の薄板軽量形鋼を用 いた建築物の接合構造を有することを特徵とするスチールハウス。  7. A steel house characterized by having a joint structure for a building using the thin and light-weight shaped steel according to any one of claims 1 to 6.
PCT/JP2000/003371 2000-05-25 2000-05-25 Joint structure of building using thin-plate, light-gauge steel WO2001090498A1 (en)

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CN00813516A CN1376227A (en) 2000-05-25 2000-05-25 Joint structure of building using thin-plate, light-gauge steel
PCT/JP2000/003371 WO2001090498A1 (en) 2000-05-25 2000-05-25 Joint structure of building using thin-plate, light-gauge steel
KR10-2002-7004072A KR100511651B1 (en) 2000-05-25 2000-05-25 Joint structure of building using thin-plate, light-gauge steel
US10/151,660 US20030213194A1 (en) 2000-05-25 2002-05-20 Joint structure of building using thin and lightweight shaped-steel

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TW089110291A TW457325B (en) 1971-01-01 2000-05-26 A joint structure for a building using a thin and lightweight shaped steel
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