D值法反弯点高度EXCEL表的研制

Making Excel Spreadsheets of Height of D-Value Method Contraflexure Point

文中推导补充了倒三角形荷载下的标准反弯点公式。对顶点集中荷载、均布荷载、倒三角形荷载下的标准反弯点公式及上、下层梁线刚度改变,上、下层柱高度改变时反弯点高度比的修正公式进行了验算,编制了EXCEL表格,以及通过算例验证了计算表格的正确性。

This paper reckons the standard formula of contraflexure point under the load of inverse-triangle. The auther checked the standard height formulas of contraflexure point under the concentrate load at the zenith, uniform load and the load of inverse-triangle. The modification equations are checked when both of the rigidity per unit length of upper and under beams different, and the rigidity per unit length of upper and under columns different. Fi- nally he works out Excel tables and has validated the correctness of these tables when using the tables calculate the actual project.