Effect of Frictional Force on Lateral Resistance of Wall-Floor Joints of Wooden Light Frame Constructions

• Meng Qingjun

  Research Faculty and Graduate School of Agriculture, Hokkaido University School of Mechanical and Electrical Engineering, Northeast Forestry University, China

• Hirai Takuro

  Research Faculty and Graduate School of Agriculture, Hokkaido University

• Sawata Kei

  Research Faculty and Graduate School of Agriculture, Hokkaido University

• Sasaki Yoshihisa

  Research Faculty and Graduate School of Agriculture, Hokkaido University

• Koizumi Akio

  Research Faculty and Graduate School of Agriculture, Hokkaido University

• Uematsu Takeyoshi

  Hokkaido Northern Regional Building Research Institute

Bibliographic Information

Other Title

• 枠組壁工法における壁－床接合部のせん断耐力に及ぼす摩擦力の影響
• ワクグミ カベコウホウ ニ オケル カベ ユカ セツゴウブ ノ センダン タイリョク ニ オヨボス マサツリョク ノ エイキョウ

Abstract

In wooden light frame constructions, wind or earthquake forces are transmitted through the boundaries between upper floors and walls, walls and lower floors, floors and sills, or sills and foundations. At the boundary between the bottom plate of a shear wall and a floor diaphragm sheathed with plywood or another wood based panel, for example, the lateral force borne by this shear wall is transmitted by both nailed or other mechanical joints and friction between the bottom plate and the floor sheathing panel. In this study, static cyclic tests were conducted to estimate the effect of frictional force on the lateral resistance at this boundary. The observed apparent frictional coefficient between SPF bottom plates and softwood plywood sheathing panels averaged 0.285 and varied in a wide range from 0.2 to 0.35. The minimum value, 0.2, is roughly close to the dynamic frictional coefficient obtained from pure frictional tests of the same combination of materials. The wide variation of apparent frictional coefficient seems to result from irregular contact conditions between bottom plates and sheathing panels or eccentricity of lateral forces. Static cyclic tests showed a great effect of friction on hysteretic damping capacity.

Journal

• Mokuzai Gakkaishi

  Mokuzai Gakkaishi 56 (1), 48-54, 2010

  The Japan Wood Research Society

Keywords

• light frame construction
• shear wall
• vertical load
• frictional force
• frictional damping

Details

• CRID: 1390001206351503360
• NII Article ID: 10029788662
• NII Book ID: AN00240329
• DOI: 10.2488/jwrs.56.48
• ISSN: 18807577
• ISSN: 00214795
• NDL BIB ID: 10568688
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10568688
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed