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6.6 组合效应 6.6.1 破碎力当内力作用的方向有很大改变时,将产生集中的破碎力。该力应由附加的妥善锚固的钢筋来抵抗。参见[18.2.3] 6.6.2 间接支承间接支承定义为承重梁与被支承的梁之间的连接部位。作用在承重梁下部的压杆力的垂直分力应传递到该梁的受压区(图6.12)。相应的吊筋应按支承处的总反力计算。如果被支承的梁的高度h_1小于承重梁的高度h_2,而两根梁顶表面又在同一水平上,则可按比值h_1/h_2折减。参见[18.2.4] 6.6.3 框架拐角在负弯矩作用下,框架拐角的危险截面常发生于梁柱的交界面(水平或垂直)。一
6.6 Combined effects 6.6.1 Crushing force When the direction of the internal force is greatly changed, a concentrated crushing force will be generated. This force should be resisted by additional properly anchored steel bars. See [18.2.3] 6.6.2 Indirect Support Indirect support is defined as the connection between the load beam and the supported beam. The vertical component of the compression force acting on the lower part of the load beam should be transmitted to the compression zone of the beam (figure 6.12). Corresponding lifting bars should be calculated based on the total reaction force at the bearing. If the height h_1 of the supported beam is smaller than the height h_2 of the bearing beam, and the top surfaces of the two beams are at the same level, the ratio h_1/h_2 may be reduced. See [18.2.4] 6.6.3 Frame corners Under negative bending moments, dangerous sections of frame corners often occur at the interface of the beam (horizontal or vertical). one