无梁空心楼盖结构设计浅析(国外英文资料).doc

无梁空心楼盖结构设计浅析(国外英文资料) When the multi-layer span is not too large, it is advisable to reduce the reinforcement, and when the high level or the span is large, consider the reduction of the weight. When using the rectangular module, the rib width should not be less than 100mm, when the rectangular cavity is larger, consider 150mm or 200mm. Built-in mold hollow slab bottom in pipeline flange height should consider board games, factors, such as hanging bolts in reference [1] section 6.1 structure requirements should not be less than 50 mm, the author suggest not less than 55 mm, span or when load is bigger, can consider to 60 mm or larger. (2) dark beams should be set in earthquake resistance, and the width of the dark beam shall not be greater than the width of the column and the 1.5 * hs per side. The mast cap must be set when the area is 8 degrees. (3) hollow slab thickness are generally not less than 250 mm, so can be compressed in the top plate across the set structure reinforcement, suggest not less than the calculated by equivalent thickness reinforcement ratio of 0.15%. The spacing of the bar is appropriate to the module of the intercostal space. (4) to the requirement of plates with longitudinal ribs, appropriate to add additional reinforcement in the form of long muscle, additional reinforcement length preferable half span calculation, but in the column upper belt, additional muscle stretch out the length of the column cap side should not be less than 1000 mm. When the reinforcement mode is not reinforced by the addition of the reinforced reinforcement, the reference [1] 6.3.3 is carried out. (5) the hollow panel should be properly configured in the following situations: 1) when the plate is thicker than 350mm 2) when the load is heavier, such as covering dirt or walking a fire truck 3), the ribs are small, the installation of the fixed scheme is not secure, and the lateral shift may occur under the thrust of the concrete 4), the end rib of the cylinder core is