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一、梁板式阳台 1.在铺设预制钢筋混凝土或预应力混凝土空心板时,要注意板的侧向勿嵌入墙内(图1)。因为空心板是按两边支撑的单向板进行设计配筋的。板侧向进墙改变了空心板原有的受力状态,构成三边支撑,此时板底与砖墙往往不能很好的吻合,在上部墙体压力作用下,受力性不好。板侧向进墙的横截面积往往较小,又有长向通孔,所以空心板侧向易被压裂、压碎。
First, beam-type balcony 1. In the laying of prefabricated reinforced concrete or pre-stressed concrete hollow slabs, we must pay attention to the side of the panel not embedded in the wall (Figure 1). Because the hollow slab is designed to be reinforced by two-sided unidirectional plates. The lateral entry of the plate changes the original force state of the hollow plate and constitutes a three-sided support. At this time, the plate bottom and the brick wall often do not fit well. Under the action of the upper wall pressure, the stress is not good. The cross-sectional area of the plate into the wall is often smaller, and there are long-direction through holes, so the hollow plate is easily fracturing and crushed laterally.