300*200h steel 7 meter span center load the most, can bearing 30 tons?
The stress from the beam considering shear second, considering the bending stress from the steel table can be found in the maximum shear strength of T Tmax=Q/Ib[BH^2/8-/8] its Tmax: the maximum shear strength. The available shear strength of T generation in, can withstand the maximum load of.Q beam calculated for uniform load for I steel the section moment of inertia in the steel sheet check (cm^4).B maximum width.B I-beam for minimum width of I-beam H steel minimum width section height
H section steel belongs to middle wing H section steel, can weigh 30 tons. 294*200*9*12 of the national standard. According to the specifications of the calculation, 10 meters span is large, or the cross section of the beam is a bit small, only the strong or the equivalent of roof purlin. Can not bear too much weight. Recommend the use of H type steel above 600*300*12*18. Below is the H type steel bearing calculation:RA=RB=P/2 Mc=Mmax=Pl/4 fc=fmax=Pl^3/48EI A= B=Pl^2/16EI symbol and theta theta P - Q - N; concentrated load, uniform load, N; R - bearing force, the direction of the action is positive, N; M - bending moment, the compression of the upper section, lower tension is positive, Nm; Q, the shear. The adjacent section of the torque in a clockwise direction is positive, N; F, deflection, downward displacement is positive, mm; angle theta, clockwise rotation as positive degrees; E - Gpa; I - elastic modulus, cross-sectional moment of inertia, m^4; L = x/. =x'/l, zeta, alpha beta gamma = a/l, =b/l, =c/l from two aspects
H is the calculation of the height normal stress of the maximum width section of I-beam: Ysigma=M/W, M=, maximum bending moment = load, travel distance, W= bending modulus, maximum allowable stress of Ysigma=, and maximum value of load
Needless to say, it can not be carried so vigorously.Bearing structure refers to itself directly with the various support systems plus transmission of force to the main structure foundation and its joints, including bearing wall, vertical rod, frame column, pier, beam, floor, roof, cable etc..
