合计                                                      3.62
（4）楼梯
     楼梯板（按250mm厚钢筋砼板等效）                  0.25 25=6.25
     水磨石地面                                                 0.65
20厚1:3水泥砂浆找平层                             0.02 20=0.4
                                                                                             
     合计                                                        7.3
2.4梁柱墙自重
2.4.1梁自重
   （1）顶层：  A 主梁：     
                  粉刷：
                                                                                            
                  合计                          4.68 KN/m
                B次梁：       
                  粉刷：  
                                                                                             
                  合计                            2.16KN/m 5层长宁区商贸中心建筑与结构设计+CAD图纸(4):http://www.chuibin.com/gongcheng/lunwen_38201.html