单筋矩形截面梁正截面设计时截面尺寸的初拟

本文综合考虑了常见截面尺寸及其配筋情况下 ,钢筋及砼强度等级、钢筋配筋率、截面高宽比、截面的有效高度等因素的经验取值 ,从而建立了设计弯矩与截面高度 ( h)间近似单一的关系 ,从而可快速地初拟截面尺寸 ,既简便又实用 ,避免了盲目试算 ,对初步涉及或者即将涉及工程实践的有关人员 ,特别是在校学生有极大的帮助

THE PRELIMINARY DETERMINATION ON THE SIZE OF THE NORMAL SECTION OF THE BEAM WITH SINGLE-ROW REINFORCING BARS AND RECTANGULAR SECTIONS IN DESIGNING

The thesis takes into comprehensive consideration of such factors as the strength degrees of reinforcing bars and concrete, the ratio of reinforcing bars and concrete, the ratio of the section's height and width, and the effective height of the section, thus setting up the approximately single relation between designing moment and the section's height, and rapidly making the preliminary determination of the size of the section. It is both easy and practical, avoiding blind preliminary calculation, and it is very helpful to the people who have just set foot in engineering career, especially to students.