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贵州省交通勘察设计院曾经收集了140座箱形拱和双曲拱桥的施工资料进行了整理和分析,得出了大量的参考数据。 根据我院近几年来的设计资料将这些资料进行了适当的调整和删补后列如表1～6以供参考,并说明如下: 一、表列参考数据按下列设计标准求出: 设计荷载 汽—15 桥面净空 7+2×0.75米人行道 拱圈宽 B=8.5米 矢跨比 f/L=1/6～1/8 计算单元宽 b=1.4米 钢筋配置及其用量均以拱脚截面控制。 二、双曲拱基本数据的经验公式:
Guizhou Province Traffic Survey and Design Institute has collected 140 box arch and arch arch bridge construction materials were collated and analyzed, reached a lot of reference data. According to the design data of our hospital in recent years, these data have been properly adjusted and deleted as listed in Table 1 ~ 6 for reference, and described as follows: First, the reference data listed in accordance with the following design criteria: Design load Steam -15 Bridge clearance 7 +2 × 0.75 m Sidewalk arch ring width B = 8.5 m Longitudinal ratio of f / L = 1/6 ~ 1/8 Calculation unit width b = 1.4 m Reinforcement configuration and its dosage are arch foot Section control. Second, the basic formula of the double arch empirical formula: