建筑自振周期经验公式一些问题的探讨

A Study on Some Problems in Empirical Formulas for Estimating Structual Natural Periods

用统计分析方法归纳出的自振周期值的经验公式,具有形式简单、使用方便的优点。本文就基本周期经验公式的参数、脉动实测修正系数、误差等问题进行一些控讨。同时,通过统计分析给出第二振型、第三振型周期与基本周期比值的经验公式。采用这一结果,可推出求高振型周期经验公式。

Based on the information which has been collected, this paper discusses parameters, the correction factor for micro-tremor measured data, and errors in empirical formulas for estimating the fundamental period. In addition, the empirical formulas for estimating the ratios of 2nd and 3th mode periods to the fundamental period are put forward through statistical analysis. These formulas can supply the lack of empirical formulas for the estimation of structual higher mode periods.