四边简支矩形板计算(国外英文资料).docVIP

四边简支矩形板计算(国外英文资料) Structural component calculation The square of the four sides is the rectangular plate count The project name... (1 Unit number: LB - 1 Second, the schematic diagram Third, according to the regulation Construction load specification GB50009-2001 Design specification for concrete structure gb50010-2010 Fourth, calculate the information 1. The geometric parameters Computing span: Lx = 11000 mm; Ly = 7500 mm Thickness: h = 400 mm 2. The material information Concrete grade: C30 fc = 14.3 N/mm2 ft = 1.43 N/mm2 FTK = 2.01 N/mm2 Ec = 3.00 times 104N/mm2 Type of bar: HRB400 f = 360 N/mm2 Es = 2.0 * 105 N/mm2 Minimum reinforcement ratio: rho = 0.200% Longitudinal tensile reinforcement points to the near edge distance: as = 55mm Protective thickness: c = 40mm Load information (equifabric load) Permanent load factor: gamma G = 1.200 Variable load factor: gamma Q = 1.400 Quasi-permanent value coefficient: psi is equal to 1.000 Permanent load standard value: QGK = 15.000 kN/m2 Variable load standard value: QQK = 0.000 kN/m2 Method of calculation: springboard The boundary condition (top/bottom/left/right) : Jane/Jane/Jane 6. Design parameters Coefficient of structural importance: gamma = 1.00 Poisson ratio: mu = 0.200 Five, the calculation parameter: Calculate the span of the board: Lo = 7500 mm The effective height of the board: ho = h-as = 400-55 = 345 mm 6, the reinforcement calculation (lx/ly = 11000/7500 = 1.467 2.000) : X to the back bar 1) determine the bending moment of the X to the bottom Mx = the coefficient in the table (gamma G * QGK + gammas) * Lo2 = (0.0287 + 0.0707 * 0.200) * (1.200 * 15.000 + 1.400 * 0.000) * 7.52 = 43.374 kN * m 2) determine the calculated coefficients Alpha s is equal to gamma. = 1.00 * 43.374 * 106 / (1.00 * 14.3 * 1000 * 345 * 345) = 0.025 3) calculate relative pressure area height Xi = 1 - SQRT (1-2 * alpha s) = 1 - SQRT (1-2 * 0.025) = 0.026 4) calculate the area of tensile steel As = alpha 1 * fc * ho * * ho * * * * * *