Study on shear strength and stiffness of roof diaphragm in Wooden post and beam construction

木柱梁结构屋顶横隔板抗剪强度和刚度研究

• 批准号: 22780158
• 负责人: SOMA Tomoaki
• 金额: $ 1.83万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22780158/
• 关键词: 在来軸組工法; 方形屋根; 面内せん断試験; 床倍率; 寄棟屋根; 短期基準せん断耐力; 奇棟屋根

The objective of this study is to clear the share resist mechanism of wooden hip roof structure as diaphragm. The experimental parameters were roof figure, beam flame length ratio, gradient of roof and with/without rafter fastener. We tested and got data of load-displacement curves, calculated the specific values as diaphragm from those data. The experimental values corresponded with the FEM model's values approximately to 1/60 rad displacement degree. If we express the spring model in each joint as mathematically, the design formula would be obtained.

本研究之目的为探讨木四坡屋盖结构作为横隔的抗剪机理。试验参数为屋顶形状、梁火焰长度比、屋顶坡度和有无椽条扣件。通过试验得到了荷载-位移曲线数据，并根据这些数据计算出了作为横隔梁的比应力值。实验值与有限元模型的值对应约1/60弧度的位移度。如果我们将每个关节中的弹簧模型用数学表示，就可以得到设计公式。