修建工程混凝土深梁的设计(国外英文资料).docVIP

建筑工程混凝土深梁的设计(国外英文资料) The specification stipulates that the inner arm of the beam is used in the following formula: A cross section of a deep beam and a continuous deep beam Z = 0.1 (I0 + 5.5 h) When the I0 The branch section of a continuous deep beam Z = 0.1 ((I0 + 5h) When the I0 3.1.2 reasonable values for arm Z The inner arm Z is derived from the experimental results, which makes the calculation of the transverse section of the deep beams simple and practical. However, the calculation of the deep beam and reinforcement is simpler, but the calculation of the internal forces is more complicated. Because the specification stipulates that the bending moment and shear force of the continuous deep beam should be calculated according to the method of elastic mechanics. It is difficult to calculate the internal forces if there is no ready diagram at hand, and the elastic mechanics are more unfamiliar. This inadvertently sets up a small barrier to design practice. Now, the inner arm comes from the experiment. Why cant you compute the internal forces in a similar way? This is just a lack of the norm. In order to simplify the calculation of bending bar, European association of concrete (CEB) suggested that the positive and negative moment of the continuous deep beam are calculated according to the common beam: the bearing and the bending moment in the lever of ql2 ql2 1/12 and 1/12 respectively in all press type values: When I is less than or less than or equal to 2.5, Z = 0.2 (I0 + 1.5 h) When I0 over h is less than 1, Z is 0.5 I0. In this case, the same value is taken from the inner arm of the span of the span, and the z-value of the support section is larger than the actual one. But because the actual support curve is less than 1/12ql02, it compensates for this apparent deviation. The value of the inner arm Z of this method is less than the numerical value specified in the regulations of our country, and it appears that the stress value of this method is certain to be l