熱烈歡迎各位領(lǐng)導(dǎo)和專家管理工程系江西建設(shè)職業(yè)技術(shù)學(xué)院JIANGXICOLLEGEOFCONSRUCTION工程量清單計(jì)價(jià)江西建設(shè)職業(yè)技術(shù)學(xué)院JIANGXICOLLEGEOFCONSRUCTION板鋼筋工程授課教師：余珊珊鋼筋工程計(jì)量與計(jì)價(jià)板鋼筋計(jì)算知識(shí)回顧知識(shí)小結(jié)123主要內(nèi)容

板鋼筋類別底筋、面筋、支座負(fù)筋、分布筋、溫度筋一、知識(shí)回顧一、知識(shí)回顧底筋面筋支座負(fù)筋1.鋼筋計(jì)算規(guī)則項(xiàng)目編碼

項(xiàng)目名稱項(xiàng)目特征計(jì)量單位工程量計(jì)算規(guī)則010515001現(xiàn)澆構(gòu)件鋼筋鋼筋種類、規(guī)格t按圖示鋼筋長(zhǎng)度乘以單位理論質(zhì)量計(jì)算鋼筋按現(xiàn)澆構(gòu)件鋼筋、預(yù)制構(gòu)件鋼筋、預(yù)應(yīng)力鋼筋分不同規(guī)格、型號(hào)，分別計(jì)算。鋼筋長(zhǎng)度需考慮構(gòu)件長(zhǎng)度、保護(hù)層厚度、彎鉤長(zhǎng)度、搭接方式、錨固長(zhǎng)度等。二、板筋計(jì)算2.底筋長(zhǎng)度計(jì)算L=Ln+max(0.5ha,5d)×2+2×6.25d二、板筋計(jì)算根數(shù)=（凈跨－起步距離*2端）/間距+1?板筋間距僅圓鋼考慮螺紋鋼不需考慮3.面筋長(zhǎng)度計(jì)算二、板筋計(jì)算長(zhǎng)度＝板內(nèi)凈長(zhǎng)Ln＋錨固長(zhǎng)度根數(shù)=（凈跨－起步距離*2端）/間距+1ha－保護(hù)層＞LaE時(shí)，錨固長(zhǎng)度取LaE?板筋間距ha－保護(hù)層＜LaE時(shí),錨固長(zhǎng)度取ha－C+15d二、板筋計(jì)算4.支座負(fù)筋（板端）長(zhǎng)度計(jì)算L=標(biāo)注長(zhǎng)度+(板厚－2C)+15d根數(shù)=（凈跨－起步距離*2端）/間距+1?板筋間距負(fù)筋標(biāo)注長(zhǎng)度二、板筋計(jì)算5.支座負(fù)筋（中間）長(zhǎng)度計(jì)算L=標(biāo)注長(zhǎng)度+2×(板厚－2C)根數(shù)=（凈跨－起步距離*2端）/間距+1（從梁邊開(kāi)始布置）二、板筋計(jì)算6.分布筋長(zhǎng)度計(jì)算L=軸線長(zhǎng)度－負(fù)筋標(biāo)注長(zhǎng)度﹢2×150根數(shù)（板端）=（支座負(fù)筋標(biāo)注長(zhǎng)度－梁寬-保護(hù)層）/間距+1軸線長(zhǎng)度根數(shù)（中間）=（支座負(fù)筋標(biāo)注長(zhǎng)度－梁寬）/間距+1負(fù)筋負(fù)筋軸線長(zhǎng)度二、板筋計(jì)算7.溫度筋長(zhǎng)度計(jì)算L=軸線長(zhǎng)度－負(fù)筋標(biāo)注長(zhǎng)度+2×搭接長(zhǎng)度根數(shù)=（軸線長(zhǎng)度－負(fù)筋標(biāo)注長(zhǎng)度）/間距+1軸線長(zhǎng)度三、知識(shí)小結(jié)L底筋=Ln+max(0.5ha,5d)×2+2×6.25d僅圓鋼考慮螺紋鋼不需考慮根數(shù)=（凈跨－起步距離*2端）/間距+1L面筋＝Ln＋錨固長(zhǎng)度ha－保護(hù)層＞LaE時(shí)，錨固長(zhǎng)度取LaEha－保護(hù)層＜LaE時(shí),錨固長(zhǎng)度取ha－C+15dL支座負(fù)筋（板端）=標(biāo)注長(zhǎng)度+(板厚－2C)+15dL支座負(fù)筋（板端）=標(biāo)注長(zhǎng)度+2×(板厚－2C)三、知識(shí)小結(jié)L分布筋=軸線長(zhǎng)度－負(fù)筋標(biāo)注長(zhǎng)度﹢2×150根數(shù)（板端）=（支座負(fù)筋標(biāo)注長(zhǎng)度－梁寬-保護(hù)層）/間距+1根數(shù)（中間）=（支座負(fù)筋標(biāo)注長(zhǎng)度－梁寬）/間距+1L