LIST OF PUBLICATION

 Tree Mechanics

 

・Koizumi, A.; Hirai, T.; Ryu, K.; Nakahara, M.; Araya, K.; Shimizu, H.:Wind damage resistance of Robinia pseudoacacia planted on the roadsides,Res. Bull. Hokkaido Univ. For., 64(2), 105-112 (2007). (in Japanese withEnglish summary)

 ・ Koizumi,A; Hirai,T: Evaluation of the section modulus for tree-stem cross sections of irregular shape, J. Wood Science,DOI:10.1007/s10086-005-0747-2 (2006).
 
 ・ A.Koizumi; K.Ueda: Estimation of Mechanical Properties of Standing Trees by Bending Test III. Modulus of elasticity of tree trunks of plantation-grown conifers, Mokuzai Gakkaishi, 33(6), 450-456, 1987. (in Japanese)
 
 ・ A.Koizumi; K.Ueda: Estimation of Mechanical Properties of Standing Trees by Bending Test II. Variation of tree trunk stiffness associates with radial growth, Mokuzai Gakkaishi, 32(11), 860-867, 1986. (in Japanese)
 
 ・ A.Koizumi; K.Ueda: Estimation of Mechanical Properties of Standing Trees by Bending Test I. Test method to measure the stiffness of tree trunk, Mokuzai Gakkaishi, 32(9), 669-676, 1986. (in Japanese)

 Tree Improvement

 ・ Koizumi,A.; Kitagawa,M.; Hirai,T.: Effects of growth-ring parameters on mechanical properties of Japanese larch (Larix kaempferi) from various provenances, Eurasian J. For. Res., 8(2),85-90 (2005).
 
 ・ K.Takata; A.Koizumi; Kueda: Variations of Radial Growth and Wood Quality among Provenances in Japanese Larch, Mokuzai Gakkaishi, 38(12), 1082-1088, 1992. (in Japanese)
 
 ・ K.Takata; A.Koizumi; K.Ueda: Geographic Variation in the Moduli of Elasticity of Tree Trunks among Japanese Larch in Provenance Trial-Stands, Mokuzai Gakkaishi, 38(3), 222-227, 1992. (in Japanese)
 
 ・ Takata,K.; Ueda,K.; Koizumi,A.: Geographic variation in moduli of elasticity of tree trunks among Japanese larch in Hokkaido, Ecology and Management of Larix Forests: A Look Ahead, pp.502-504 (1992).
 
 ・ Koizumi,A.; Takada,K.; Ueda,K.: Variation in modulus of elasticity among Japanese larch from different provenances, Proc. IUFRO Centennial Meeting of the IUFRO Working Party S2.02-07, pp.66-72 (1992).
 
 ・ A.Koizumi; K.Takata; K.Ueda: Radial Growth and Wood Quality of Plus Trees of Japanese Larch II. Diameters at breast height and trunk maduli of elasticity of 18-year-old offspring families, Mokuzai Gakkaishi, 36(9), 704-708, 1990. (in Japanese)
 
 ・ A.Koizumi; K.Takata; K.Ueda; T.Katayose: Radial Growth and Wood Quality of Plus Trees of Japanese Larch I. Radial growth and trunk modulus of elasticity of grafted clones, Mokuzai Gakkaishi, 36(2), 98-102, 1990. (in Japanese)

 Mechanical Properties of Trees and Wood

 

・Koizumi, A.; Teranishi, M.; Hirai, T.: Shrinkage and mechanicalproperties of wood sampled from the trees planted in HokkaidoUniversity, Res. Bull. Hokkaido Univ. For., 64(2), 91-104 (2007). (inJapanese with English summary)
・Muto, G.; Koizumi, A.: Mechanical properties of aodamo (Fraxinuslanuginosa), white ash (Fraxinus americana), and sugar maple (Acersaccharum) as baseball bats, Res. Bull. Hokkaido Univ. For., 64(2),113-122 (2007). (in Japanese with English summary)

 ・ H.Takiuchi; K.Sawata; T.Sasaki; Y.Okazaki; S.Doi; Y.Iijima: Embedding Strength of Wood Exposed to Decay Fungi, Mokuzai Gakkaishi, 53(1), 46-51, 2007. (in Japanese)
 
 ・ Zhu,J.; Tadooka,N.; Takata,K.; Koizumi,A.: Growth and wood quality of sugi (Cryptomeria japonica) planted in Akita Prefecture(2)juvenile/mature wood demarcation of aged trees, J. Wood Science, 51(2),95-101 (2005).
 
 ・ Koizumi,A.; Takata,K.; Yamashita,K.; Nakada,R.: Anatomical characteristics and mechanical properties of Larix sibirica grown in south-central Siberia, IAWA J., 24(4),355-370 (2003).
 
 ・ K.Sawata; M.Yasumura: Determination of embedding strength of wood for dowel-type fasteners, J. Wood Science 48(2), 138-146 (2002)
 
 ・ Y.Iijima; N.Itagaki; Y.Okazaki; T.Esashi; A.Koizumi; T.Sasaki; H.Mihashi: Strength Properties of Sugi (Cryptomeria japonica) Grown in Akita Prefecture V. Production and performance evaluation of the glulam, Mokuzai Gakkaishi, 45(4), 313-323, 1999. (in Japanese)

  ・ T.Hirai; R.Ogawa; T.Tanabe; K.Ueda; K.Sakai: Transient Wave Characteristics in Longitudinal Free Vibration and Bending Strength of Lumber with Knots, Mokuzai Gakkaishi, 43(7), 537-543, 1997. (in Japanese)
 
 ・ Y.Iijima; A.Koizumi; Y.Okazaki; T.Sasaki; K;Horie: Strength Properties of Sugi (Cryptomeria japonica) Grown in Akita Prefecture IV. Reasonable lamination method and estimation of moduli of elasticity of glulam, Mokuzai Gakkaishi, 43(2), 165-170, 1997. (in Japanese)
 
 ・ Y.Iijima; A.Koizumi; Y.Okazaki; T.Sasaki; H.Nakatani: Strength Properties of Sugi (Cryptomeria japonica) Grown in Akita Prefecture III. Some relationships between logs and sawn lumber, Mokuzai Gakkaishi, 43(2), 159-164, 1997. (in Japanese)
 
 ・ A.Koizumi; Y.Iijima; T.Sasaki; Y.Okazaki: Strength Properties of Sugi (Cryptomeria japonica) Grown in Akita Prefecture II. Mechanical properties of lumber, Mokuzai Gakkaishi, 43(2), 210-214, 1997. (in Japanese)
 
 ・ A.Koizumi; Y.Iijima; T.Sasaki; Y.Kawai; Y.Okazaki; H.Nakatani: Strength Properties of Sugi (Cryptomeria japonica) Grown in Akita Prefecture I. Young’s moduli of logs, Mokuzai Gakkaishi, 43(1), 46-51, 1997. (in Japanese)
 
 ・ T.Hirai: Effect of Loading Direction no the Bending Characteristics of Wood under Bolt, Mokuzai Gakkaishi, 30(12), 959-964, 1984. (in Japanese)

Structural Performance
Timber joints ~ Nail, Drift-Pin, Bolt, Glued-in hardwood dowel ~

 ・Takahashi, Y; Koizumi, A; Ii, T; Hirai T: Prevension of splitting failure at Hardwood dowel joints connecting two members at right angles,Mokuzai Gakkaishi, 54(3),132-138 (2008). (in Japanese with English summary)
http://www.jstage.jst.go.jp/article/jwrs/54/3/132/_pdf/-char/ja/

 ・ K.Sawata; T.Sasaki; S.Kanetaka: Estimation of shear strength of dowel-type timber connections with multiple slotted-in steel plates by European yield theory, J. Wood Science 52(6), 496-502 (2006)
 
 ・ Hirai,T.; Namura,K.; Kimura,T.; Tsujino,T.; Koizumi,A.: Lateral resistance of anchor-bolt joints between timber sills and foundations(3) Numerical simulations of the effect of sill thickness on the effective lateral resistance of multiple anchor-bolt joints, J. Wood Science,52(4),295-301 (2006).
 
 ・ Hirai,T.; Namura,K.; Yanaga,K.; Koizumi,A.; Tsujino,T.: Lateral resistance of anchor-bolt joints between timber-sills and foundations(2) Effective lateral resistance of multiple anchor-bolt joints, J. Wood Science,52(2),115-120 (2006).
 
 ・ K.Namura; K.Yanaga; Y.Sasaki; A.Koizumi; T.Hirai: Lateral Resistance of Anchor-Bolt Joints Between Timber-Sills and Foundations I. Single-shear tests of anchor-bolt joints of Japanese post and beam constructions, Mokuzai Gakkaishi, 51(2), 110-117, 2005. (in Japanese)
 
 ・ A.Koizumi; T.Sasaki; Y.Matsuki: Effects of cure time and Humidity Cycles on Withdrawal Strength of Hardwood Dowel Joints, Mokuzai Gakkaishi, 50(4), 248-254, 2004. (in Japanese)
 
 ・ Hirai,T., Namura,K., Yanaga,K., Sasaki,Y., Koizumi, A.: Design Lateral Resistance of Rows of Anchor-Bolt Joints, Proc. WCTE04, 2004.
 
 ・ K.Yanaga; T.Mochida; Y.Sasaki; T.Hirai: Allowable Margins of Nailed Joints with Wood-Based Structural Panels Subjected to Lateral Forces, Mokuzai Gakkaishi, 50(1), 30-36, 2004. (in Japanese)
 
 ・ T.Tsujino; T.Hirai; N.Takeuchi: Analyses of the Lateral Resistances of Bolt Joints and Drift Pin Joints in Timber III, Mokuzai Gakkaishi, 49(3), 187-196, 2003. (in Japanese)
 
 ・ K.Sawata; M.Yasumura: Estimation of yield and ultimate strengths of bolted timber joints by nonlinear analysis and yield theory, J. Wood Science 49(5), 383-391 (2003)
 
 ・ Jensen,J.L.; Sasaki,T.; Koizumi,A.: Plywood frame corner joints with glued-in hardwood dowels, J. Wood Science, 48(4),289-294 (2002).
 
 ・ T.Sasaki; A.Koizumi; J.L.Jensen; Y.Iijima; K.Komatsu: End Joint with Glued-in Hardwood Dowels in Timber Construction II, Mokuzai Gakkaishi, 48(1), 23-31, 2002. (in Japanese)
 
 ・ K.Sawata; M.Yasumura: Nonlinear analysis of lateral strength of bolted timber joints, Proceedings of the World Conference on Timber Engineering, 176-183 (2002)
 
 ・ A.Koizumi; T.Sasaki; J.L.Jensen; Y.Iijima; K.Komatsu: Moment-resisting Properties of Post to sill Joints Connected with Hardwood Dowels, Mokuzai Gakkaishi, 47(1), 14-21, 2001. (in Japanese)
 
 ・ Koizumi,A.; Jensen,J.L.; Sasaki,T.: Structural joints with glued-in hardwood dowels, Joints in Timber Structures(RILEM PRO 22), pp.403-412 (2001).
 
 ・ Jensen,J.L.; Koizumi,A.; Sasaki,T.; Tamura,Y.; Iijima,Y.: Axially loaded glued-in hardwood dowels, Wood Science and Technology, 35(1/2),73-83 (2001).
 
 ・ K.Hujita; N.Furuta; Y.Sasaki; T.Hirai: Pull-up Resistance of Nailed Column-Sill Joints with Steel Side Plates, Mokuzai Gakkaishi, 46(5), 431-440, 2000. (in Japanese)
 
 ・ K.Sawata; M.Yasumura: Evaluation of yield strength of bolted timber joints by Monte-Carlo simulation, Proceedings of the World Conference on Timber Engineering, 1.4.4 (2000)
 
 ・ Jensen,J.L.; Koizumi,A.; Sasaki,T.: Timber joints with glued-in hardwood dowels, Forest Research Institute Bulletin 212,100-107 (1999).
 
 ・ A.Koizumi; J.L.Jensen; T.Sasaki; Y.iijima; Y.Matsuki; K.Komatsu: Withdrawal Properties of Hardwood Dowels Glued Perpendicular to the Grain, Mokuzai Gakkaishi, 45(3), 230-236, 1999. (in Japanese)
 
 ・ T.Sasaki; A.Koizumi; J.L.Jensen; Y.Iijima; Y.Tamura; K.Komatsu: End Joint with Glued-in Hardwood Dowels in Timber Construction I. Bending properties of beams jointed with single row of dowels, Mokuzai Gakkaishi, 45(1), 17-24, 1999. (in Japanese)
 
 ・ Wakashima, Y. and Hirai, T.: Hysteretic Properties of Mechanical Timber Joints, Proc. 5th World Conference on Timber Engineering, Vol.1, 844-846, 1998.
 
 ・ Hirai, T., and Wakashima, Y.: Lateral Resistance of Mechanical Timber Joints, Proc. 5th World Conference on Timber Engineering, Vol.1, 842-843, 1998.
 
 ・ Hirai, T., Ohtomo, T. and Wakashima, Y.: Effective Resistance of Joints with Multiple Fastenings, Proc. 5th World Conference on Timber Engineering, Vol.2, 145-152, 1998.
 
 ・ A.Koizumi; J.L.Jensen; T.Sasaki; Y.Iijima; Y.Tamura: Withdrawal Properties of Hardwood Dowels in End Joints II. Effects of dowel diameter, Young’s moduli of adhesives, dowel springs and number of dowels, Mokuzai Gakkaishi, 44(2), 109-115, 1998. (in Japanese)
 
 ・ A.Koizumi; J.L.Jensen; T.Sasaki; Y.Iijima; Y.Tamura: Withdrawal Properties of Hardwood Dowels in End Joints I. Evaluation of shear performance of adhesives, Mokuzai Gakkaishi, 44(1), 41-48, 1998. (in Japanese)
 
 ・ Y.Wakashima; T.Hirai: Hysteretic Properties of Nailed Timber-Plywood Joints under Cyclic Loading III. Revaluation of basic material properties, Mokuzai Gakkaishi, 43(5), 417-426, 1997. (in Japanese)
 
 ・ T.Hirai; Y.Wakashima: Lateral Resistance and Fracture Modes of Nailed Timber Joints V. Numerical analyses of maximum lateral resistance of nailed timber-plywood joints, Mokuzai Gakkaishi, 42(12), 1195-1201, 1996.
 
 ・ Y.Wakashima; T.Hirai: Nail-Wood Bearing Properties I. Effects of initial gripped conditions of nails driven into wood, Mokuzai Gakkaishi, 42(6), 574-580, 1996. (in Japanese)
 
 ・ T.Hirai; Estimation of the Effect of the Length/Diameter Ratio on the Lateral resistance of Bolted or Drift-Pinned Timber Joints, Mokuzai Gakkaishi, 41(5), 459-466, 1995. (in Japanese)
 
 ・ Y.Wakashima; T.Hirai: Hysteretic Properties of Nailed Timber-Plywood Joints under Cyclic Loading II. Application of the generalized theory of a beam on an elastic foundation, Mokuzai Gakkaishi, 39(12), 1377-1385, 1993. (in Japanese)
 
 ・ Y.Wakashima; T.Hirai: Hysteretic Properties of Nailed Timber-Plywood Joints under Cyclic Loading I. Static cyclic loading test, Mokuzai Gakkaishi, 39(11), 1259-1266, 1993. (in Japanese)
 
 ・ T.Tujino; T.Hirai: Lateral Resistance and Fracture Modes of Nailed Timber Joints II. In the case of load direction is perpendicular to the grain direction of the timber member, Mokuzai Gakkaishi, 39(11), 1307-1316, 1993. (in Japanese)
 
 ・ T.Hirai: A Monte Carlo Simulation of the Effective Lateral Resistance of Multiple Bolted Timber Joints with Lead Hole Clearances Subjected to Axial Forces, Mokuzai Gakkaishi, 39(9),1027-1035, 1993.
 
 ・ T.Hirai; Y.Ando; K.Ueda: Lateral Resistance and Fracture Modes of Nailed Timber Joints I, Mokuzai Gakkaishi, 37(12), 1157-1166, 1991. (in Japanese)
 
 ・ T.Hirai: Analyses of the Lateral Resistances of Bolted Joints and Drift-Pin Joints in Timber II. Numerical analyses applying the theory of a beam on an elastic foundation, Mokuzai Gakkaishi, 37(11), 1017-1025, 1991. (in Japanese)
 
 ・ T.Hirai: Analyses of the Lateral Resistances of Bolted Joints and Drift-Pin Joints in Timber I. An assumption of cracking fracture criterion for mechanical timber-joints loaded parallel to the grain, Mokuzai Gakkaishi, 37(11), 1011-1016, 1991. (in Japanese)
 
 ・ T.Hirai: Effect of Fractional Resistance on Laetral Resistance of Bolted Timber-Joints with Steel Side-Webs, Mokuzai Gakkaishi, 37(6), 517-522, 1991. (in Japanese)
 
 ・ T.Hirai: Comparison of the Lateral Resistance of Bolt Joints and Drift Pin Joints, Mokuzai Gakkaishi, 37(4), 303-308, 1991. (in Japanese)
 
 ・ T.Hirai: SOME CONSIDERATIONS ON LATERAL RESISTANCE OF MECHANICAL WOOD-JOINTS WITH METAL WEBS, Journal of Structural Engineering, Vol.37A, 1051-1061, 1991
 
 ・ T.Hirai: SOME CONSIDERATIONS ON LATERAL RESISTANCE OF MECHANICAL WOOD-JOINTS, Proc. the 1990 International Timber Engineering Conference, Tokyo, 241-247, 1990.
 
 ・ T.Hirai: Nonlinear Load-Slip Relationship of Bolted Wood-Joints with Steel Side-Members III. Advanced numerical analysis based on the generalized theory ofa beam on an elastic foundation, Mokuzai Gakkaishi, 31(3), 165-170, 1985.
 
 ・ T.Hirai; K.Horie: Lateral Resistance of Bolted Wood-Joints With Steel Side-Members (Effect of Loading Direction), Mokuzai Gakkaishi, 30(12), 965-972, 1984. (in Japanese)
 
 ・ T.Hirai: Nonlinear Load-Slip Relationship of Bolted Wood-Joints with Steel Side-Members II. Application of the Generalized Theory of a Beam on an Elastic Foundation, Mokuzai Gakkaishi, 29(12), 1983.
 
 ・ T.Tsujino; T.Hirai: Nonlinear Load-Slip Relationship of Bolted Wood-Joints with Steel Side-Members I. Numerical Analysis Based Upon a Finite Element Method, Mokuzai Gakkaishi, 29(12), 833-838, 1983. (in Japanese)
 
 ・ T.Hirai: The Effect of End and Side Distances on the Lateral Resistance of Bolted Wood-Joints Loaded Perpendicular to Grain, Mokuzai Gakkaishi, 29(2), 118-122, 1983. (in Japanese)
 
 ・ T.Hirai; M.Sawada: Lateral Resistance of Bolted Wood-Joints with Wood Side Members Loaded Parallel to the Grain, Mokuzai Gakkaishi, 28(11), 695-698, 1982. (in Japanese)
 
 ・ T.Hirai; M.Sawada: Lateral Resistance of Bolted Wood-Joints with Steel Side Members Loaded Parallel to the Grain, Mokuzai Gakkaishi, 28(11), 685-694, 1982. (in Japanese)
 
 ・ T.Hirai; M.Sawada: Linear Load-Slip Relationship of Bolted Joints of Glued-Laminated Lumber, Mokuzai Gakkaishi, 28(10), 609-613, 1982.
 
 ・ T.Hirai; M.Sawada: Nominal Bearing-Stresses of Bolted Wood-Joints at Apparent Proportional-Limits, Mokuzai Gakkaishi, 28(9), 543-547, 1982.
 
 ・ T.Hirai; M.Sawada: The Effect of Margins on the Lateral Resistance of Bolted Joints Loaded Parallel to Grain, Mokuzai Gakkaishi, 28(3), 137-142, 1982. (in Japanese)
 
 ・ T.Hirai; M.Sawada: Some Considerations on Nail-Wood Bearing Test, Mokuzai Gakkaishi, 28(1), 39-44, 1982. (in Japanese)
 
 ・ T.Hirai; P.W.Zhang; Y.Irie; Y.Wakashima: Lateral Resistance of Nailed Timber joints with Structural Wooden Panels, Mokuzai Gakkaishi, 45(2), 120-129, 1999. (in Japanese)
 
 ・ P.W.Zhang; K.Ueda; T.Hirai: An Aging Test of Nailed Timber Joints with Structural Wooden Panels, Mokuzai Gakkaishi, 43(12), 1030-1034, 1997. (in Japanese)
 
 ・ T.Hirai: Deformation of Nailed Corner-Joints with Plywood Gusset-Plates, Mokuzai Gakkaishi, 33(4), 281-285, 1987. (in Japanese)

 Structural element

 ・ Dansoh,A.B.;Koizumi,A.;Hirai,T.: Bending strength and stiffness of glued butt-jointed glulam, Forest Products Journal, 54(9),40-44 (2004).
 
 ・ Dansoh,A.B.;Koizumi,A.;Hirai,T.: Compressive and tensile properties of a butt-jointed lamination model, J. Wood Science, 49(5),405-410 (2003).
 
 ・ Dansoh,A.B.; Ueda,K.; Hirai,T.: Bending Strength and Stiffness Analysis of Butt-Jointed Glulam Beams for Residential Construction, Forest Prod. J., 52(9), 82-87, 2002.
 
 ・ Komatsu,K.; Koizumi,A.; Sasaki,T.; Jensen,J.L.; Iijima,Y.: Flexural behavior of GLT beams end-jointed by glued-in hardwood dowels, Proc. CIB-W18 30th Meeting, pp.1-8 (1997).
 
 ・ Sasaki,H.;Yamauchi,H.;Miura,I.;Iijima,Y.;Koizumi,A.;Kawai,S.: Manufacture and properties of hollow cylindrical LVL, Proc. 3rd Pacific Rim Bio Based Composites Symposium, pp.335-339 (1996).
 
 ・ Sasaki,H.; Yamauchi,H.; Koizumi,A.; Iijima,Y.; Tamura,Y.; Sasaki,T.; Kawai,S.: Cylindrical LVL for structural use made by spiral-winding method, Proc. International Wood Engineering Conference, Vol.3,pp.538-540 (1996).
 
 ・ T.Tsujino; A.Koizumi: Nonlinear Bending analysis of Two-Layered Wood Beams Connected with Nails, Mokuzai Gakkaishi, 29(9), 553-557, 1983. (in Japanese)

 Shear wall, Semi-rigid frame, Construction

 ・Kei Sawata, Shigehumi Okamoto, Masahide Murakami, Aiko Kawanabe, Tamotsu, Suzuki: Estimation of Stiffness and Bearing Capacity for Mud Walls with Openings Based on Their Resistance Mechanism, J. Struct. Constr. Eng., AIJ, No.620, 93-100, Oct., 2007
 
 ・Shigehumi Okamoto, Kei Sawata, Masahide Murakami, Tamotsu, Suzuki, Masahiro Inayama: Prediction  and Its Verification of Shear Force-Deformation Relation and Bracing Unit Multiplier for Mud Walls Based on a Portion-Wall Test, J. Struct. Constr. Eng., AIJ, No.621, 103-110, Nov., 2007
 
 ・ K.Kiso; A.Saratani; T.Morii; K.Sawata; F.Aono; C.Watanabe; Y.Hayashi: Study on Reduction of Seismic Damage for Traditional Wooden House in Mie Prefecture Local Environment, AIJ J. Technol. Des. No.24, 471-476, 2006. (in Japanese)
 
 ・ K.Sawata; A.Kawanabe; T.Suzuki: Analysis of Factors in Damage of Collapsed Houses Caused by the 2003 Miyagiken-oki Earthquake Based on Microtremor Measurement and Manpowerd Forced Vibration Test, AIJ J. Technol. Des. No.21, 121-126, 2005. (in Japanese)
 
 ・ Hirai,T., Kimura,T., Yanaga,K., Sasaki,Y., Koizumi,A.: Lateral Resistance of Log Constructions, Proc. WCTE04, 2004.
 
 ・ K.Yanaga; T.Mochida; Y.Sasaki; T.Hirai: Reduction of Effective Resistance of Nailed Shear Walls Caused by Misnailing III. Reduction of effective resistance caused by bows of frame members, Mokuzai Gakkaishi, 49(3), 220-226, 2003. (in Japanese)
 
 ・ K.Yanaga; T.Mochida; Y.Sasaki; T.Hirai: Reduction of Effective Resistance of Nailed Shear Walls Caused by Misnailing II. Reduction of effective resistance caused by human irregularity in nailing, Mokuzai Gakkaishi, 49(3), 204-211, 2003. (in Japanese)
 
 ・ K.Yanaga; Y.Sasaki; T.Hirai: Estimation of Shear Resistance of Nailed Shear Walls Considering Vertical Loads and Pull-up Resistance of Stud-Bottom Plate Joints, Mokuzai Gakkaishi, 48(3), 152-159, 2002. (in Japanese)
 
 ・ K.Yanaga; Y.Sasaki; T.Hirai: Estimation of Allowable Resistance of Nailed Shear Walls Considering the Variance of Nailed Joint Resistance, Mokuzai Gakkaishi, 47(3), 242-251, 2001. (in Japanese)
 
 ・ Hirai, T., Yanaga, K. and Zhang, P.: Practical Effective Resistance of Nailed Shear Walls, Proc. World Conference on Timber Engineering 2000 (CD-ROM), No. P16 (8 pages), 2000.
 
 ・ K.Yanaga; T.Hirai: Reduction of Effective Resistance of Nailed Shear Walls Caused by Misnailing. MonteCarlo simulations of the effective resistance, Mokuzai Gakkaishi, 46(2), 95-103, 2000. (in Japanese)
 
 ・ T.Hirai: Deformation of Wooden Gabled Roof-Frame Nailed Jointed with Plywood Gusset-Plates, Mokuzai Gakkaishi, 33(9), 689-693, 1987. (in Japanese)
 
 ・ T.Hirai: Deformation of a Nailed-Jointed Wooden Portal-Frame with Plywood Gusset-Plates, Mokuzai Gakkaishi, 33(4), 286-290, 1987. (in Japanese)

 The Others

 ・ Takata,K.; Kurinobu,S.; Koizumi,A.; Yasue,K.; Tamai,Y.; Kisanuki,M: Bibliography on Japanese larch (Larix kaempferi (Lamb.) Carr.), EurasianJ. For. Res., 8(2),111-126 (2005).
 
 ・ T.Hirai; M.Yuda; E.Tsuchihashi; K.Minato: Cutting Performances of Limbing Knives of Log Harvesters I. Effect of wedge angles on cutting resistance of single-tapered knives, Mokuzai Gakkaishi, 42(3), 258-263, 1996. (in Japanese)