木结构计算（Wood structure calculation）.docVIP

木结构计算（Wood structure calculation） 2-6 wooden structure calculation 1 2-6-1 wood structure calculation table 1. Material rating of load-bearing structural members (table 2-97) Load-bearing structural member material rating table 2-97 Items are Component type The material grade one A tensile or bending member i. 2 Bending or bending member II 3 Compression member and secondary flexural member (such as ceiling keels) III. Note: 1. The secondary components, such as roof boards and tiles, can be selected according to the local customs. 2. It is the material grade classification according to the requirements of the stress of the bearing structure, the material should comply with the specifications for design of timber structure GBJ 5-88 the provisions of the material standard shall not be replaced with general goods material level standard. Strength design and elastic modulus of wood of common tree species (table 2-98) The strength design value and elastic modulus (N/mm2) of commonly used tree species are 2-98 The intensity of level group Dont Suitable tree species The bending FM Compressive pressure and pressure fc Shun wen tensile ft Along the lines of shear fv Transverse grain pressure fc, 90 Modulus of elasticity E The whole surface Local surface and surface The tension bolt gasket is under TC17 a. cedar 17 16 10 1.7 2.3 3.5 4.6 10000 B Northeast larch 15 9.5 1.6 TC15 a. Iron shirt and oil fir 15 13 9 1.6 2.1 3.1 4.2 10000 B Fish scales spruce and southwest spruce 12 9 1.5 TC13 a. Oil pine, xinjiang larch pine, yunnan pine, masson pine 13 12 8.5 1.5 1.9 2.9 3.8 10000 B Redskins, lijiang spruce, red pine, camphor pine 10 8.0 1.4 9000 TC11 a. Northwest spruce and xinjiang spruce 11 10 7.5 1.4 1.8 2.7 3.6 9000 B Fir and fir 10 7.0 1.3 TB20 - Oak, green hills, thick wood 20 18 12 2.8 4.2 6.3 8.4 12000 TB17 - Northeast China ash 17 16 11 2.4 3.8 5.7 7.6 11000 TB15 - Chestnuts and birch 15 14 10 2.0 3.1 4.7 6.2 10000 Note: 1. In the end of wooden pieces, such as joint tensi