均布荷载作用下的矩形截面简支梁挠度近似计算公式的误差分析

In practice, the Deflection Calculating of the simply supported beam with rectangular cross-section load by uniformly distributed load, using approximate formula, but not the theoretical formula. Through practical examples, analysis of the approximate formula with the theoretical formula for calculating the value of the deflection error range and changes, the results showed that in the civil construction of the role of uniformly distributed load of reinforced concrete beams with rectangular cross-section of the maximum deflection using approximate calculation is feasible. The rectangular cross-section simply supported beam under uniformly distributed load produced by the smaller elastic modulus of the material, if the beam geometrical parameters of the small value the maximum deflection demanding precision, we must maximize the use of theoretical calculation formula.