1工程量计算讲议平整场地:建筑物场地厚度在±30CM以内的挖、填、运、找平·················2大开挖土方·······················································································3满堂基础垫层····················································································4满堂基础··························································································5条形基础··························································································6独立基础··························································································8承台基础··························································································8桩···································································································9土方回填、运土················································································9墙体·······························································································10门窗·······························································································11过梁·······························································································11阳台·······························································································12挑檐·······························································································13雨蓬·······························································································13柱子·······························································································14梁··································································································15板··································································································15楼梯·······························································································16屋面·······························································································17房间内装修······················································································18外墙装修·························································································19建筑面积·························································································20散水、坡道······················································································23台阶·······························································································23脚手架····························································································24超高附加费······················································································252平整场地:建筑物场地厚度在±30cm以内的挖、填、运、找平.1、平整场地计算规则(1)清单规则:按设计图示尺寸以建筑物首层面积计算。(2)定额规则:按设计图示尺寸以建筑物首层面积计算。2、平整场地计算方法(1)清单规则的平整场地面积:清单规则的平整场地面积=首层建筑面积(2)定额规则的平整场地面积:定额规则的平整场地面积=首层建筑面积3、注意事项(1)、有的地区定额规则的平整场地面积:按外墙外皮线外放2米计算。计算时按外墙外边线外放2米的图形分块计算,然后与底层建筑面积合并计算;或者按“外放2米的中心线×2=外放2米面积”与底层建筑面积合并计算。这样的话计算时会出现如下难点:①、划分块比较麻烦,弧线部分不好处理,容易出现误差。②、2米的中心线计算起来较麻烦,不好计算。③、外放2米后可能出现重叠部分,到底应该扣除多少不好计算。(2)、清单环境下投标人报价时候可能需要根据现场的实际情况计算平整场地的工程量,每边外放的长度不一样。3大开挖土方1、开挖土方计算规则(1)、清单规则:挖基础土方按设计图示尺寸以基础垫层底面积乘挖土深度计算。(2)、定额规则:人工或机械挖土方的体积应按槽底面积乘以挖土深度计算。槽底面积应以槽底的长乘以槽底的宽,槽底长和宽是指混凝土垫层外边线加工作面,如有排水沟者应算至排水沟外边线。排水沟的体积应纳入总土方量内。当需要放坡时,应将放坡的土方量合并于总土方量中。2、开挖土方计算方法(1)、清单规则:①、计算挖土方底面积:方法一、利用底层的建筑面积+外墙外皮到垫层外皮的面积。外墙外边线到垫层外边线的面积计算(按外墙外边线外放图形分块计算或者按“外放图形的中心线×外放长度”计算。)方法二、分块计算垫层外边线的面积(同分块计算建筑面积)。②、计算挖土方的体积:土方体积=挖土方的底面积*挖土深度。(2)、定额规则:①、利用棱台体积公式计算挖土方的上下底面积。V=1/6×H×(S上+4×S中+S下)计算土方体积(其中,S上为上底面积,S中为中截面面积,S下为下底面面积)。如下图4S下=底层的建筑面积+外墙外皮到挖土底边线的面积(包括工作面、排水沟、放坡等)。用同样的方法计算S中和S下3、挖土方计算的难点⑴、计算挖土方上中下底面积时候需要计算“各自边线到外墙外边线图”部分的中心线,中心线计算起来比较麻烦(同平整场地)。⑵、中截面面积不好计算。⑶、重叠地方不好处理(同平整场地)。⑷、如果出现某些边放坡系数不一致,难以处理。4、大开挖与基槽开挖、基坑开挖的关系槽底宽度在3m以内且长度是宽度三倍以外者或槽底面积在20m2以内者为地槽,其余为挖土方。满堂基础垫层1、满堂基础垫层工程量:如图所示,(1)、素土垫层的体积(2)、灰土垫层的体积(3)、砼垫层的体积(3)垫层模板2、满堂基础垫层工程量计算方法5⑴、素土垫层体积的计算:利用棱台的计算公式:素土垫层体积=1/6×H×(S上+4×S中+S下)计算土方体积(其中,S上为上底面积,S中为中截面面积,S下为下底面面积)。⑵、灰土垫层体积的计算:利用棱台的计算公式:灰土垫层体积=1/6×H×(S上+4×S中+S下)计算土方体积(其中,S上为上底面积,S中为中截面面积,S下为下底面面积)。⑶、素砼体积的计算:基础垫层与混凝土基础按混凝土的厚度划分,混凝土的厚度在12cm以内者执行垫层子目;厚度在12cm以外者执行基础子目。垫层体积=垫层面积×垫层厚度。⑷、垫层模板的计算:垫层模板=垫层的周长×垫层高度3、满堂基础垫层工程量计算的难点⑴、计算素土垫层、灰土垫层的上中下底面积时候需要计算“各自边线到外墙外边线图”部分的中心线,中心线计算起来比较麻烦(同平整场地)。⑵、中截面面积不好计算。⑶、重叠地方不好处理(同平整场地)。⑷、如果出现某些边放坡系数不一致,难以处理。满堂基础1、满堂基础工程量如图所示,(1)、满堂基础的体积(2)、满堂基础模板(4)、满堂基础梁体积(5)满堂基础梁模板2、满堂基础工程量计算方法⑴、满堂基础的体积①计算方法之一:满堂基础最大面积的底面积×满基底板厚度—多算部分三角带的体积满堂基础最大面积的底面积=建筑面积+外墙外皮到满堂外边线的面积三角带的体积=斜坡中心线周长×多算部分三角形截面积②计算方法之二:满堂基础顶面积×满堂基础底板的厚度+梯形带的体积满堂基础顶面积=建筑面积+外墙外皮到满堂外边线的面积-斜坡宽度的面积梯形带体积=斜坡中心线长度×梯形截面面积6③计算方法之三:满堂基础最大面积的底面积×满堂基础底板未起边的厚度+起边棱台体积(2)、满堂基础模板:①计算方法之一:天津2004年建筑工程预算基价满堂基础模板按满堂基础砼以体积计算。②计算方法之二:有的地区定额规则的满堂基础模板=满基外边线的长度×满基外边线的高度+满基斜坡中心线周长×满基斜坡斜长。(3)、满堂基础梁①满堂基础梁的体积计算方法:满堂基础梁的体积=梁的净长×梁的净高②满堂基础梁的模板计算方法之一:天津2004年建筑工程预算基价基础梁模板按满堂基础梁砼以体积计算。计算方法之二:有的地区定额规则的满堂基础模板=梁高出满基的侧面净长×梁高出满基的侧面净高+梁头面积。3、满堂基础工程量计算的难点⑴、计算满堂基础的体积时,外墙外皮到满堂外边线部分区域、斜坡宽度部分区域等的中心线的长度算起来比较麻烦(同平整场地)。⑵、基础梁的净长计算,必须考虑相交梁之间的相互扣减问题。⑶、满堂基础梁的模板的计算,必须考虑满基以及相交梁之间的相互扣减问题。条形基础1、条形基础工程量如图所示,(1)、素土垫层工程量(2)、灰土垫层工程量(3)、砼垫层工程量(4)、砼垫层模板(5)、条形基础工程量:砖基;砼条基(6)、砼条基模板(7)、地圈梁工程量(8)、地圈梁模板(9)、基础墙工程量(10)基槽的土方体积(11)支挡土板工程量(11)槽底钎探工程量2、条形基础计算方法(1)素土垫