section formula

The calculated formula of the torsion in the terminal section of prestressed concrete flat-beam is improved by internal forces analysis.

通过对无粘结部分预应力混凝土扁梁梁端的受力分析，改进了以往扁梁梁端扭矩设计值计算公式。

Take the first cross section as an example, and the calculation formula of flexural capacity of composite beams is obtained by using the error transfer formula of mathematical statistics.

运用数理统计学的误差传递公式，推导出了组合梁截面抗弯承载力统计参数的计算公式（以第一类截面为例）。

Based on the formula for f-k domain migration and in line with the wave theory, the formula for seismic section migration after stack in T-p domain was derived.

本文从F-K域偏移公式出发，系统地导出了叠后地震（时间和伪深度）剖面波动理论的τ-p域偏移公式。

Then, based on the testing datum, this paper proposes normal section load-carrying capacity formula of CFSTRC.

之后收集试验数据, 提出核心柱轴心受压正截面承载力的计算公式.

Considerable error may occur to the calculation of flow capacity for channels with compound cross section by means of Manning formula, when flood is out-of-bank and flooding of plain is happened.

复式河槽在洪水漫滩后，直接运用曼宁方程计算过流能力将带来很大误差。

Secondly, section resistance probability models based on durability damage are deduced according to the members bearing capacity calculation formula in the JTG/ D62-2004 specification.

其次，根据JTG／D62-2004规范中构件截面承载力计算公式构造出考虑耐久性损伤的截面抗力概率模型。

It is proved that the classical Stokes drift formula can be regarded as a special case of the new drift formula at a special vertical section in a special coordinate system.

运用由垂向位移方程解得的振幅与参数β的关系式可证明经典Stokes漂流公式可以看作是新漂流公式在特定坐标系下的特定垂直断面处的结果。

A new critical moment formula of tapered beam is proposed, which is similar to the expression for beams with uniform cross-section.

提出了新的变截面梁临界弯矩计算式，其表达形式与等截面梁的公式相同，便于工程应用。

According to the section temperature field distribution of the the whole heating process, derived the normal cross section ultimate flexural bearing capacity calculation formula of the simply supported prestressed steel reinforced concrete beam under high temperature.

3根据升温全过程构件截面温度场的分布，推导高温下预应力型钢混凝土简支梁的正截面极限抗弯承载力计算公式。

Exact calculating formula of area moment of inertia of H-section steel beam is instead of its approximate calculating formula, So transfer matrix method of tapered H-section steel beam about its internal force analysis is established.

用H型钢梁截面惯性矩较精确的近似计算公式来代替其精确计算公式，从而建立了楔形H型钢梁内力分析的传递矩阵法。