[问]地圈梁在纵横墙十字处要不要加设附加钢筋,即转角附加筋?梁内同一断面有Ⅰ级钢筋与Ⅱ级,Ⅲ级钢筋绑扎或互相焊接是不是允许?柱内同一断面或第一层用Ⅰ级钢筋,第二层用Ⅱ级或Ⅲ级钢筋是不是可以互相焊接?(贵州省兴义市卢远继)[答]1.楼板下的圈梁十字交叉很少遇到,因为纵横墙十字交叉处设有组合柱。地基圈梁或连梁十字交叉处不加附加筋,只对底排钢筋纵横 [Q] Do you need to add additional steel reinforcement to the floor beams at the intersection of the vertical and horizontal walls, that is, additional ribs at the corners? Are the same sections in the beam with grade I steel bars and Grade II, Grade III steel bars tied or welded to each other? Is the first layer of steel grade I steel and the second layer of steel grade II or III steel can be welded to each other?(Lu Yuan, Xingyi City, Guizhou Province) [Answer] 1. The cross beam under the floor rarely crosses Thanks to the combination of pillars at the intersection of the vertical and horizontal walls. No extra ribs at the intersection of the foundation beam or coupling beam, only the bottom row of steel bars