US20150184380A1 - Pitched rigid frame structure - Google Patents

Pitched rigid frame structure Download PDF

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Publication number
US20150184380A1
US20150184380A1 US14/416,007 US201314416007A US2015184380A1 US 20150184380 A1 US20150184380 A1 US 20150184380A1 US 201314416007 A US201314416007 A US 201314416007A US 2015184380 A1 US2015184380 A1 US 2015184380A1
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US
United States
Prior art keywords
post
pitched
point
diagonal
rigid frame
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US14/416,007
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English (en)
Inventor
Yasunori Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YAMAMOTOKOUMUTEN Co Ltd
Original Assignee
YAMAMOTOKOUMUTEN Co Ltd
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
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Assigned to YAMAMOTOKOUMUTEN CO., LTD. reassignment YAMAMOTOKOUMUTEN CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: YAMAMOTO, YASUNORI
Publication of US20150184380A1 publication Critical patent/US20150184380A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/02—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs
    • E04B7/022—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of a plurality of parallel similar trusses or portal frames
    • E04B7/024—Roofs; Roof construction with regard to insulation with plane sloping surfaces, e.g. saddle roofs consisting of a plurality of parallel similar trusses or portal frames the trusses or frames supporting load-bearing purlins, e.g. braced purlins
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/38—Arched girders or portal frames
    • E04C3/40—Arched girders or portal frames of metal
    • 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
    • E04B2001/2466—Details of the elongated load-supporting parts
    • E04B2001/2472—Elongated load-supporting part formed from a number of parallel 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
    • E04B2001/2487—Portico type structures
    • 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
    • E04B2001/249—Structures with a sloping roof
    • 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

Definitions

  • the present invention relates to an improved pitched rigid frame structure in which an inside space is made larger than previous ones.
  • a pitched rigid frame structure In order to construct a large inside space, a pitched rigid frame structure is adapted in which diagonal beams extending from each post top of a pair of posts are jointed to configure a pitched roof, and in which a horizontal tension member is built between the diagonal beams.
  • the pitched rigid frame structure is made large by adapting a large sized member as the posts and the diagonal beams to enlarge an inside space.
  • the large sized member costs more as a material cost. If a size of the member is enlarged, a stress applied to the post becomes large if a distance between the posts (more correctly, a distance between axis lines of the posts) is too large, and a bending moment applied to the posts is too large to build the pitched rigid frame structure.
  • Patent Document 1 discloses a pitched rigid frame structure in which diagonal beams extending from each post top of a pair of posts are jointed to configure a pitched roof, and in which an inclined tension member built between a lower end of a compression member hanging from an apex of the pitched roof and a point on a diagonal beam heading from a post top to the apex (Patent Document 1, Claim 1).
  • posts and diagonal beams are configured with smaller sized members to reduce a material cost and a construction cost (Patent Document 1, [0039]) by lifting the compression member with the inclined tension member pulled outwardly by a bending moment of the diagonal beams, and by canceling out the bending moment with an inverse moment generated in the diagonal beams to enhance a structural strength (Patent Document 1, [0012])
  • Patent Document 1 Japanese Patent Application Publication No. H08-189081
  • Examples of a pitched rigid frame structure raised in Patent Document 1 have a distance (span) between the axis lines of posts up to 60 m. If the distance (span) between the axis lines of posts exceeds 60 m, large sized members have to be adapted even with the pitched rigid frame structure disclosed in Patent Document 1. If the distance (span) between the axis lines of posts exceeds 100 m, it is difficult to construct it because a stress applied to the posts becomes large and a bending moment applied to the diagonal beams becomes large too.
  • the pitched rigid frame structure is superior in a point that no obstacles exist between the posts and a continuous inside space is provided. Therefore, if the distance (span) between the axis lines of posts is larger, it is more convenient.
  • a rigid frame structure whose inside space is larger than the one disclosed in Patent Document 1 is studied.
  • a pitched rigid frame structure including: a pair of posts having a truss structure, whose axis line being away at a distance of 80 m to 120 m; diagonal beams having a truss structure, extending from a post top of each post and joining to configure a pitched roof; an angle brace built over a point on a post and a point on a diagonal beam, the point on the post descending within 5 m from a crossing point of the post and an axis line of the diagonal beam, the point on the diagonal beam heading from each post top to an apex of the pitched roof, a horizontal distance from the axis line of the post being 3/40 to 4/40 of the distance between the axis lines of the pair of posts; and an inclined tension member built between a lower end of a compression member hanging from the apex of the pitched roof and the point on the diagonal beams building the angle brace or a point on the diagonal beam heading from the point to the apex. Height of the lower end of the compression member
  • the bending moment applied to the diagonal beams becomes large in a pitched rigid frame structure whose distance (span) of axis lines of posts is large.
  • a moment at an outer end (a moment at a connecting point at the post top which is lower end of the diagonal beams) and a moment (a moment at the apex of the pitched roof joining the diagonal beams) in the middle of the diagonal beams become small by receiving a vertical load at the apex of the pitched roof joining the diagonal beams with the inclined tension member intervening the compression member, and by the angle brace transmitting a vertical force at an end portion of the inclined tension member to the posts instead of transmitting it to the diagonal beams.
  • the distance (span) of axis lines of posts is able to be made larger in the rigid frame structure of the present invention, exceeding the pitched rigid frame structure disclosed in Patent Document 1.
  • the point on the posts building the angle brace is at a point descending within 5 m from a crossing point of the post and an axis line of the diagonal beam (considering a thickness of the diagonal beams, the crossing point may be descend exceeding 5 m a little).
  • the point on the diagonal beams building the angle brace is a point heading from each post top to the apex of the pitched roof, and a horizontal distance from the axis line of the post is 3/40 to 4/40 of the distance between the axis lines of the pair of posts.
  • the moment at the outer end (the moment at the connecting point at the post top which is the lower end of the diagonal beams) and a moment (a moment at the pitched roof joining the diagonal beams) in the middle are made small to make it possible to make a distance (span) of axis lines of posts large.
  • the posts and the diagonal beams adapt a truss structure to enhance a stiffness of the posts and the diagonal beams.
  • the truss structure is less expensive than a welded H-steel beam. If a stiffness of the similar extent as the welded H-steel beam is realized with the truss structure, it is advantageous that the truss structure is lighter than the welded H-steel beam.
  • the truss structure can be configured, for example, by configuring a main material (an upper chord member and a lower chord member) or a lattice with H-steel beams, which are a standardized product.
  • a larger inside space is formed compared to the pitched rigid frame structure disclosed in Patent Document 1 to enhance an availability as a pitched rigid frame structure.
  • the inside space can be made large by making the distance (span) of axis lines of posts large with the angle brace built between a point on a post and a point on a diagonal beam.
  • the point on the post descends within 5 m from a crossing point of the post and an axis line of the diagonal beam.
  • the point on the diagonal beam heads from each post top to an apex of the pitched roof.
  • a horizontal distance from the axis line of the post is 3/40 to 4/40 of the distance between the axis lines of the pair of posts.
  • the posts and the diagonal beams By configuring the posts and the diagonal beams with the truss structure, a stiffness of the posts and the diagonal beams is enhanced, the distance (span) of axis lines of posts is made large up to 120 m, and a material cost and a construction cost are reduced.
  • FIG. 1 is a schematic view illustrating an example of a pitched rigid frame structure applied with the present invention.
  • FIG. 2 is a partially magnified view illustrating a post and a diagonal beam having a truss structure used in the pitched rigid frame structure of the present example.
  • FIG. 3 is a schematic view illustrating an example of a pitched rigid frame structure applied with a prior invention.
  • FIG. 4 is a schematic view illustrating a basic pitched rigid frame structure.
  • a pitched roof is configured by joining diagonal beams 12 , 12 extending from respective post tops 111 , 111 of a pair of posts 11 , 11 .
  • An angle brace 13 is built between a point 112 on the post 11 descending from each post top 111 and a point 121 on a diagonal beam 12 heading from each post top 111 to an apex 125 of the pitched roof.
  • An inclined tension member 15 is built between a lower end 141 of a compression member 14 hanging from the apex 125 of the pitched roof and the point 121 on the diagonal beams 12 building the angle brace 13 .
  • the pitched rigid structure 1 assumes a size configuring an inside space in which the distance (span) S of axis lines 113 of posts is 120 m, and a height at the lower end 141 of the compression member 14 (an equivalent height) is approximately 20 m.
  • the present invention can be applied to a pitched rigid structure 1 smaller than above mentioned size. For example, it is applied to the one having the distance S of axis lines 113 of posts 11 is 80 m and the equivalent height is 10 m. If the distance S of axis lines 113 of post 11 becomes small or the equivalent height becomes small, according to the pitched rigid structure applied with the present invention, a size of materials to be used can be made small and light.
  • the truss structure is preferably adapted in the pitched rigid frame structure 1 of the present invention.
  • the posts 11 having the truss structure is configured by building a H-steel beam as a lattice at an angle between H-steel beams as left and right main materials.
  • An intermediate line between the H-steel beams 114 , 114 functioning as left and right main materials is an axial line 113 .
  • the diagonal beam 12 having the truss structure is configured, for example, by building a H-steel beam 124 as a lattice at an angle between H-steel beams as upper and lower main materials 123 , 123 .
  • An intermediate line between the H-steel beams 123 , 123 as left and right main materials is an axial line 122 .
  • the post 11 and the diagonal beam 12 are standardized product and are configured by easily obtainable H-steel beams, it is easy to design or inexpensive to manufacture.
  • a welded H-steel beam may be used instead of the posts 11 and the diagonal beam 12 having the truss structure of the present example, material cost rises if the welded H-steel beam, as it is called irregular products, is adapted. If the distance S is same, a grade can be made lower than a prior similar pitched rigid frame structure (for example, see FIG. 3 shown later) to reduce the material cost, by reducing a moment on outer end of the diagonal beam and a moment in the middle to make the distance S of the axis lines 113 , 113 of the posts 11 , 11 large. According to this, it is understood that the post 11 and the diagonal beam having the truss structure are more preferable than the welded H-steel plate rising the material cost.
  • a point 112 on the post building the angle bracket 13 is a point descending at an amount ⁇ H set within 5 m or below from crossing point of an axial line 1113 of the post 11 and an axial line 122 of the diagonal beam 12 .
  • ⁇ H is set so that an equivalent height (height at the lower end 141 of the compressing member 14 ) as the pitched rigid frame structure becomes higher than the point 112 on the post building the angle bracket 13 .
  • the point 121 on the diagonal beams 12 building the angle brace 13 is a the point heading from a post top 111 to an apex 125 of the pitched roof, and a horizontal distance from the axis line 113 , 113 of the post 11 , 11 is ⁇ S set within 3/40 to 4/40 between the distance of the axis lines of the pair of posts.
  • the point 121 on the diagonal beams 12 building the angle brace 13 and the point on the diagonal beams 12 building the inclined tension member 115 correspond each other in the present example.
  • the inclined tension member 25 is built between a lower end 241 of a compression member 24 hanging from the apex 225 of the pitched roof joining the diagonal beams 22 , 22 extending from each post tops 211 , 211 of the pair of posts 21 , 21 and a point 221 on the diagonal beams 22 heading from the post top 211 to the apex 225 .
  • the pitched roof is configured by joining the diagonal beams 32 , 32 extending from each post top 311 , 311 of the pair of posts 31 , 31 .
  • required weight of steel beam is reduced by approximately 15% on average when it is compared with the pitched rigid frame structure 2 applied with the prior invention.
  • required weight of steel beam is the smallest among the prior invention and conventional one. It is inexpensively built by reducing a material cost.
  • room space of the pitched rigid frame structure is made large. If the room space is same, the pitched rigid frame structure is more inexpensively built than previous one.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rod-Shaped Construction Members (AREA)
US14/416,007 2013-01-21 2013-11-21 Pitched rigid frame structure Abandoned US20150184380A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013-008184 2013-01-21
JP2013008184A JP5301741B1 (ja) 2013-01-21 2013-01-21 山形ラーメン構造物
PCT/JP2013/081394 WO2014112202A1 (ja) 2013-01-21 2013-11-21 山形ラーメン構造物

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US14/416,007 Abandoned US20150184380A1 (en) 2013-01-21 2013-11-21 Pitched rigid frame structure

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JP (1) JP5301741B1 (ja)
WO (1) WO2014112202A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9988805B1 (en) * 2015-03-24 2018-06-05 Mahaffey Fabric Structures LLC Clearspan fabric structure
ES2690204A1 (es) * 2018-06-19 2018-11-19 Universitat Politècnica De València Estructura de pórtico con dintel a dos aguas
US11319703B2 (en) * 2019-01-09 2022-05-03 Sekisui House, Ltd. Roof frame structure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106919134B (zh) * 2017-02-24 2017-11-03 黑龙江鼎和投资管理集团有限公司 一种自平衡预应力门式刚架结构装置
CN108277924A (zh) * 2018-03-14 2018-07-13 江苏恒久钢构有限公司 张弦桁架的拉索张拉方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0750794Y2 (ja) * 1990-03-16 1995-11-15 野中貿易株式会社 トロンボーンにおけるロータリバルブの操作機構
JP4198282B2 (ja) * 1999-09-27 2008-12-17 太陽工業株式会社 蛇腹式テント構造物およびこれを用いた簡易建屋構造
JP3117291U (ja) * 2005-09-30 2006-01-05 正尚 磯▲崎▼ テンション導入装置

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9988805B1 (en) * 2015-03-24 2018-06-05 Mahaffey Fabric Structures LLC Clearspan fabric structure
US10352033B2 (en) * 2015-03-24 2019-07-16 Mahaffey Fabric Structures LLC Clearspan fabric structure
US20190284791A1 (en) * 2015-03-24 2019-09-19 Mahaffey Fabric Structures, LLC Clearspan fabric structure
US10914060B2 (en) * 2015-03-24 2021-02-09 Mahaffey Fabric Structures, LLC Clearspan fabric structure
US11332919B2 (en) * 2015-03-24 2022-05-17 Mahaffey Fabric Structures, LLC Clearspan fabric structure
US11773581B2 (en) 2015-03-24 2023-10-03 Sunbelt Rentals, Inc. Clearspan fabric structure
ES2690204A1 (es) * 2018-06-19 2018-11-19 Universitat Politècnica De València Estructura de pórtico con dintel a dos aguas
US11319703B2 (en) * 2019-01-09 2022-05-03 Sekisui House, Ltd. Roof frame structure

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WO2014112202A1 (ja) 2014-07-24
JP5301741B1 (ja) 2013-09-25
JP2014139372A (ja) 2014-07-31

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Effective date: 20141218

STCB Information on status: application discontinuation

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