1998 Fiscal Year Final Research Report Summary
Strength Effects of Connecting Methods and the Reinforcements between Cylindrical LVL Posts and Horizontal Members
| Project/Area Number |
08456091
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
林産学
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| Research Institution | Akita Prefectural University (1998)
Akita Prefectural College of Agriculture (1996-1997) |
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Principal Investigator |
SASAKI Hikaru Prof. of Institute of Wood Technology, Akita Prefectural University, 木材高度加工研究所, 教授 (50027158)
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| Co-Investigator(Kenkyū-buntansha) |
IIJIMA Yasuo Prof. of Institute of Wood Technology, Akita Prefectural University, 木材高度加工研究所, 教授 (10279507)
YAMAUCHI Hidefumi Inst. of Institute of Wood Tech., Akita Prefectural University, 木材高度加工研究所, 助手 (90279513)
TAMURA Yasuo Prof. of Institute of Wood Technology, Akita Prefectural University, 木材高度加工研究所, 教授 (90279505)
KOIZUMI Akio Assoc. Prof. of Institute of Wood Tech., Akita Prefectural University, 木材高度加工研究所, 助教授 (40183040)
SUZUKI Tamotsu Prof. of Institute of Wood Technology, Akita Prefectural University, 木材高度加工研究所, 教授 (90027235)
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| Project Period (FY) |
1996 – 1998
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| Keywords | Cylindrical LVL / Laminated Veneer Lumber (LVL) / Round wood column / Engineered wood products / 丸柱 |
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| Research Abstract |
1) The most reasonable method of manufacturing cylindrical LVL was determined. After many trials, a method to produce high quality products with high productivity and low production costs was found.
2) A number of 300mm-diameter Cylindrical LVLs were manufactured from 26mm-thick pine veneers and resorcinol resin adhesive using this method. These products were used as structural columns to test joints with beams. The test results showed that joints with special metal connectors have enough strength for practical application.
3) Cylindrical LVL products with reinforcements of glulam cores at both ends for the traditional tongue-and-groove connections performed excellently in the earthquake resistance tests conducted on an actual size house.
4) The stresses at the interface between the inner surface of the cylindrical LVL and the glulam core were analyzed using the Finite Element Method.
5)The industrial application of the technology developed was investigated.
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[Publications] H. Sasaki, H. Yamauchi, A. Koizumi, Y. Iijima, Y. Tamura, T. Sasaki and S. Kawai: "Cylindrical LVL for Structural Use Made by Spiral-Winding Method"Proc. of the International Wood Engineering Conference, October 28-31, 1996, New Orleans, Louisiana, USA. Vol.3. 538-540 (1996)
Description
「研究成果報告書概要(欧文)」より
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