钢筋混凝土结构课程设计-钢筋混凝土结构课程设计

计算过程见表2,各截面的裂缝宽度均满足要求。表2次梁的裂缝宽度验算截面1B2C3kM41.00-51.5524.54-41.4828.652/sA mm56556533940233920/ 0.87 ( / )sq k sM h A N mm??245.32308.45227.96324.94266.14/te s teA A??0.01410.01410.01000.01010.01001.1 0.65 /tk te sqf? ??? ?0.7220.7990.6290.7020.609/eqd d??(mm)1212121212(1.9 0.08 )eqcr stedl c??? ?(mm)115.59115.59143.5142.54143.5max/cr cr sq sw l E????(mm)0.2080.2640.1950.2760.221由荷载标准组合产生的跨中和支座弯矩:2(0.078 10.37 0.1 10.67) 4.675 / 41.00 /kM kN m kN m? ?????2(0.105 10.37 0.119 10.67) 4.675 / 51.55 /BkM kN m kN m?? ??????22(0.033 10.37 0.079 10.67) 4.550 / 24.54 /kM kN m kN m? ?????2(0.079 10.37 0.111 10.67) 4.550 / 41.48 /CkM kN m kN m?? ??????