construction example of long-span timber structure · - 100 - construction example of long-span...

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- 100 - S P O T L I G H T Construction Example of Long-span Timber Structure In recent years, because of the increased interest in conserving forested land, there are more long-span structures, such as domes and gymnasiums, being constructed. These structures mainly use wood materials, such as large-section glued laminated timber and laminated veneer lumber (LVL) in place of conventional steel frames. Timber as a building material has pleasing sensory qualities and thus is very good for creating a pleasant interior atmosphere. On the other hand, it has a number of disadvantages in terms of uniformity of strength, dimensional accuracy due to dry shrinkage, resistance to cracking, creep limits, durability, fire resistance, etc. As a result, it is virtually impossible to build a large structure using wooden materi- als alone. Namely, in the design of the joints between members, the tensile members, etc. of such a structure, it is necessary to use steel or metallic materials to ensure the structural parts or members retain stable quality. The Building Construction Division of Nippon Steel is positively involved in the construction of long-span timber structures utilizing its advanced design, fabrication and work management techniques related to large-span steel structures. 1. “Ehime Budokan” Construction site: Ichitsubonishi-machi, Matsuyama-shi, Ehime-ken For further information, contact Building Construction Division Site area: 26,485 m 2 Building area: 12,040 m 2 Floor area: 15,894 m 2 Structure: Timber + reinforced concrete Roof: Timber reinforced with steel Number of stories: 1 underground, 2 above ground Maximum height: 39.89 m Timber structure construction period: From July to December, 2002 2. “Kinohana Dome” Construction site: Oaza Kumano, Miyazaki-shi, Miyazaki-ken Building area: 10,966 m 2 Floor area: 11,463 m 2 Base structure: Reinforced concrete Roof: Timber (steel for joints and braces) Number of stories: 2 underground (no basements) Dome size: 122 m (major axis) 102.5 m (minor axis) 38 m (rise) Dome construction period: From June to September, 2003

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Page 1: Construction Example of Long-span Timber Structure · - 100 - Construction Example of Long-span Timber Structure S P O T L I G H T Construction Example of Long-span Timber Structure

- 100 -

Construction Example of Long-span Timber Structure

S P O T L I G H T

Construction Example of Long-span Timber Structure

In recent years, because of the increased interest in conservingforested land, there are more long-span structures, such as domesand gymnasiums, being constructed. These structures mainly usewood materials, such as large-section glued laminated timber andlaminated veneer lumber (LVL) in place of conventional steel frames.

Timber as a building material has pleasing sensory qualities andthus is very good for creating a pleasant interior atmosphere. On theother hand, it has a number of disadvantages in terms of uniformityof strength, dimensional accuracy due to dry shrinkage, resistance tocracking, creep limits, durability, fire resistance, etc. As a result, it isvirtually impossible to build a large structure using wooden materi-als alone. Namely, in the design of the joints between members, thetensile members, etc. of such a structure, it is necessary to use steelor metallic materials to ensure the structural parts or members retainstable quality.

The Building Construction Division of Nippon Steel is positivelyinvolved in the construction of long-span timber structures utilizingits advanced design, fabrication and work management techniquesrelated to large-span steel structures.

1. “Ehime Budokan”Construction site: Ichitsubonishi-machi, Matsuyama-shi, Ehime-ken

For further information, contact Building Construction Division

Site area: 26,485 m2

Building area: 12,040 m2

Floor area: 15,894 m2

Structure: Timber + reinforced concreteRoof: Timber reinforced with steelNumber of stories: 1 underground, 2 above groundMaximum height: 39.89 mTimber structure construction period: From July to December, 2002

2. “Kinohana Dome”Construction site: Oaza Kumano, Miyazaki-shi, Miyazaki-kenBuilding area: 10,966 m2

Floor area: 11,463 m2

Base structure: Reinforced concreteRoof: Timber (steel for joints and braces)Number of stories: 2 underground (no basements)Dome size: 122 m (major axis) × 102.5 m (minor axis) × 38 m (rise)Dome construction period: From June to September, 2003