木材及木基结构材料检测

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GB 50005-2017木结构设计标准

本标准适用于建筑工程中方木原木结构、胶合木结构和轻型木结构的设计。

GB/T 51226-2017多高层木结构建筑技术标准

本标准适用于多层木结构民用建筑、高层木结构住宅建筑和办公建筑的设计、制作、安装、验收与维护。

ASTM D4761-2005木材及木基结构材料机械性能的标准试验方法

These test methods provide procedures that are applicable under true field conditions, such as in a plant with specimens not at moisture equilibrium. The data established by these test methods can be used as follows: 4.2.1 Develop strength and stiffness properties for the population represented by the material being tested (that is, individual grades, grade combinations, species, species groups, or any other defined, identifiable sample). 4.2.2 Confirm the validity of strength and stiffness properties for the population represented by the material being tested. 4.2.3 Investigate the effect of parameters that may influence the strength and stiffness properties of the material, such as moisture content, temperature, knot size and location, or slope of grain. The procedures chosen in accordance with these test methods shall be fully documented in the report to facilitate correlation with test results obtained through the use of traditional procedures, such as those set forth in Test Methods D 198.Note 18212;A proof load may be used, which will permit the determination of a specified strength percentile without testing the total sample to destruction. Designing a test program on the basis of proof loading can be complex, requiring consideration in relation to the objectives of the test program. Guidance on this matter can be found in the paper by Johnson.1.1 These test methods cover the determination of the mechanical properties of stress-graded lumber and other wood-base structural material.1.2 These test methods appear in the following order: SectionBending edge-wiseBending flat-wise:Center point loadingThird point loading Axial strength in tensionAxial strength in compression 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM D4761-2011木材及木基结构材料机械性质的标准试验方法

These test methods provide procedures that are applicable under true field conditions, such as in a plant with specimens not at moisture equilibrium. The data established by these test methods can be used as follows: Develop strength and stiffness properties for the population represented by the material being tested (that is, individual grades, grade combinations, species, species groups, or any other defined, identifiable sample). Confirm the validity of strength and stiffness properties for the population represented by the material being tested. Investigate the effect of parameters that may influence the strength and stiffness properties of the material, such as moisture content, temperature, knot size and location, or slope of grain. The procedures chosen in accordance with these test methods shall be fully documented in the report to facilitate correlation with test results obtained through the use of traditional procedures, such as those set forth in Test Methods D198.1.1 These test methods cover the determination of the mechanical properties of stress-graded lumber and other wood-base structural material. 1.2 These test methods appear in the following order: Section Bending edge-wise6 Bending flat-wise: Center point loading7 Third point loading8 Axial strength in tension9 Axial strength in compression 10 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM D4761-2013木材及木基结构材料机械性质的标准试验方法

4.1x00a0;These test methods provide procedures that are applicable under true field conditions, such as in a plant with specimens not at moisture equilibrium. 4.2x00a0;The data established by these test methods can be used as follows: 4.2.1x00a0;Develop strength and stiffness properties for the population represented by the material being tested (that is, individual grades, grade combinations, species, species groups, or any other defined, identifiable sample). 4.2.2x00a0;Confirm the validity of strength and stiffness properties for the population represented by the material being tested. 4.2.3x00a0;Investigate the effect of parameters that may influence the strength and stiffness properties of the material, such as moisture content, temperature, knot size and location, or slope of grain. 4.3x00a0;The procedures chosen in accordance with these test methods shall be fully documented in the report to facilitate correlation with test results obtained through the use of traditional procedures, such as those set forth in Test Methods D198. 1.1x00a0;These test methods cover the determination of the mechanical properties of stress-graded lumber and other wood-base structural material. 1.2x00a0;These test methods appear in the following order: x00a0; Section Bending edge-wise 6 Bending flat-wise: x00a0; 8199;Center point loading 7 8199;Third point loading 8 Axial strength in tension 9 Axial strength in compression