柱板梁鋼筋工程量計(jì)算ppt課件

1、 板、柱、梁板、柱、梁 鋼筋工程計(jì)算鋼筋工程計(jì)算 【例【例1】計(jì)算鋼筋混凝土板的鋼筋用】計(jì)算鋼筋混凝土板的鋼筋用量。量。 解解 1. 計(jì)算鋼筋長(zhǎng)度，現(xiàn)澆板砼強(qiáng)度等級(jí)計(jì)算鋼筋長(zhǎng)度，現(xiàn)澆板砼強(qiáng)度等級(jí)C25，維護(hù)層厚度維護(hù)層厚度C=20mm。 1沿長(zhǎng)方向鋼筋沿長(zhǎng)方向鋼筋8200 單根鋼筋長(zhǎng)單根鋼筋長(zhǎng) 1 = 1.31.7620.0226.250.008 = 3.12 m 根數(shù)根數(shù) N1=2.50.240.1 0.21= 12根根 鋼筋長(zhǎng)鋼筋長(zhǎng) L1 = 1 N1 =3.1212 =37.44m2沿短方向鋼筋沿短方向鋼筋8200 2 =2.5 0.24 0.0222 6.25 0.008 =2.8m

2、N1=1.31.7630.120.120.22 =15根根 L2 =2.815 =42m3負(fù)彎矩筋負(fù)彎矩筋6 負(fù)筋長(zhǎng)度負(fù)筋長(zhǎng)度=圖示平直部分長(zhǎng)度圖示平直部分長(zhǎng)度 2板厚板厚2C1.75d 左右兩邊負(fù)筋長(zhǎng)度左右兩邊負(fù)筋長(zhǎng)度單根長(zhǎng)單根長(zhǎng)3 = 0.40.120.02 20.0820.021.750.006 = 0.56m根數(shù)根數(shù)N3 =2.50.240.10.212 =24根根總長(zhǎng)總長(zhǎng)L3= 0.5624 =13.44m 上下兩邊沿外墻負(fù)筋長(zhǎng)度上下兩邊沿外墻負(fù)筋長(zhǎng)度單根長(zhǎng)單根長(zhǎng)4= 0.40.240.02 20.0820.021.750.006 =0.68m根數(shù)根數(shù)N4 =1.31.7630.12

3、0.12 0.222 =15根根2 =30根根總長(zhǎng)總長(zhǎng)L4= 0.6830= 20.4m 中間小肋梁中間小肋梁 2 2斷面負(fù)筋長(zhǎng)度斷面負(fù)筋長(zhǎng)度單根長(zhǎng)單根長(zhǎng)5= 0.420.12 20.0820.021.750.006 = 0.98m根數(shù)根數(shù)N5=2.50.240.10.21=12根根總長(zhǎng)總長(zhǎng)L5= 0.9812 =11.76m 按需求，對(duì)負(fù)筋增設(shè)發(fā)布筋按需求，對(duì)負(fù)筋增設(shè)發(fā)布筋6400總長(zhǎng)度總長(zhǎng)度L6=2.50.247 1.31.760.244 =27.1m4斷面斷面22肋梁肋梁 414鋼筋總長(zhǎng)鋼筋總長(zhǎng) L7 =3.060.022 26.250.014 4 =12.78m 箍筋箍筋6200 8

4、=0.24 48 0.0318 0.006 =0.828mN8 =3.0630.1220.10.22 = 15根根總長(zhǎng)總長(zhǎng)L8 =0.82815=12.42m5斷面斷面22肋梁肋梁 120240 412鋼筋總長(zhǎng)鋼筋總長(zhǎng) L9 =2.50.240.0226.2520.012 4 =11.4m 箍筋箍筋620010 =0.120.24280.03180.006 = 0.588mN10=2.50.2420.050.21=12根根L10= 0.58812=7.06m2. 鋼筋耗費(fèi)量鋼筋耗費(fèi)量 規(guī)格 6 812 14 代號(hào)L3、L4、L5、L6、L8、L10L1、 L2L9L7 長(zhǎng)度（m）13.4420

5、.411.7627.112.427.0692.1837.444279.4411.4 12.78 質(zhì)量（kg）92.180.22220.4679.440.39531.3811.40.88810.1212.781.20815.44 【例【例2】圖為某三層現(xiàn)澆框架柱】圖為某三層現(xiàn)澆框架柱砼砼C25立面和斷面配筋圖，底立面和斷面配筋圖，底 層柱斷面尺寸為層柱斷面尺寸為350350，縱向，縱向 受力鋼筋受力鋼筋 422螺紋鋼，受力鋼螺紋鋼，受力鋼筋下端與柱基插筋搭接，搭接長(zhǎng)度筋下端與柱基插筋搭接，搭接長(zhǎng)度800mm。與柱正交的是。與柱正交的是“形整形整 表達(dá)澆梁，試計(jì)算該柱鋼筋工程量。表達(dá)澆梁，試計(jì)算該

6、柱鋼筋工程量。解解 1. 1.計(jì)算鋼筋長(zhǎng)度計(jì)算鋼筋長(zhǎng)度C=30mmC=30mm 1 1底層縱向受力筋底層縱向受力筋2222級(jí)鋼級(jí)鋼筋筋 每根筋長(zhǎng)每根筋長(zhǎng)l1= 3.07l1= 3.070.50.50.8 0.8 = 4.37 = 4.37m m 總長(zhǎng)總長(zhǎng)L1 = 4.37L1 = 4.374 = 17.48 4 = 17.48 m m 2 2二層縱向受力筋二層縱向受力筋22 22 級(jí)鋼級(jí)鋼筋筋 每根筋長(zhǎng)每根筋長(zhǎng)l2 = 3.2l2 = 3.20.6 = 3.80.6 = 3.8m m 總長(zhǎng)總長(zhǎng)L2 = 3.8L2 = 3.84 = 15.24 = 15.2m m3三層縱筋三層縱筋16級(jí)鋼筋級(jí)鋼

7、筋 每根筋長(zhǎng)每根筋長(zhǎng)l3 = 3.20.03 = 3.17m 總長(zhǎng)總長(zhǎng)L3 = 3.174 = 12.68m4柱基插筋柱基插筋22 級(jí)鋼筋級(jí)鋼筋 每根筋長(zhǎng)每根筋長(zhǎng)l4 = 0.8+1.5+0.20.04 = 2.46m 總長(zhǎng)總長(zhǎng)L4 = 2.464 = 9.84m5箍筋箍筋6，按，按03G101-1，思索，思索彎鉤彎鉤 二層樓面以下，單根箍筋長(zhǎng)二層樓面以下，單根箍筋長(zhǎng) lg1 = 0.35480.03180.006 = 1.268 m 箍筋根數(shù)箍筋根數(shù) Ng1 = 0.8/0.113.070.80.5/0.2 = 914 = 23 根根 總長(zhǎng)總長(zhǎng) Lg1 = 1.26823 = 29.16 m

8、 二層樓面至三層樓頂面，單根箍筋長(zhǎng)二層樓面至三層樓頂面，單根箍筋長(zhǎng) lg2 = 0.25480.03180.006 = 0.868 m 箍筋根數(shù)箍筋根數(shù) Ng2 = 0.80.60.1 3.220.80.60.03 0.2 = 1425 = 39 根根 總長(zhǎng)總長(zhǎng)Lg2= 0.86839=33.85 m 箍筋總長(zhǎng)度箍筋總長(zhǎng)度 Lg = Lg1Lg2 = 29.1633.85 = 63.01m 2. 鋼筋圖紙用量鋼筋圖紙用量 22 =17.4815.29.842.984 = 126.88 kg 16 = 12.681.578 = 20.01 kg 6 = 63.010.222 = 13.99 kg

9、 【例【例3】計(jì)算某辦公樓二根框架】計(jì)算某辦公樓二根框架梁梁KL1的鋼筋工程量。建筑按四級(jí)的鋼筋工程量。建筑按四級(jí)抗震設(shè)計(jì)，砼強(qiáng)度等級(jí)為抗震設(shè)計(jì)，砼強(qiáng)度等級(jí)為C25，柱，柱截面尺寸：截面尺寸：KZ1 450mm450mm，KZ2 400mm400mm。 解砼為解砼為C25，那么柱維護(hù)層，那么柱維護(hù)層C=30mm，梁維護(hù)層梁維護(hù)層C = 25mm，鋼筋采用，鋼筋采用HRB335，抗，抗震等級(jí)四，震等級(jí)四，lae = la = 34d，搭接長(zhǎng)度為，搭接長(zhǎng)度為1.234d。 1受力縱筋受力縱筋 梁上部縱筋梁上部縱筋220 鋼筋長(zhǎng)度超越鋼筋長(zhǎng)度超越8m時(shí)，思索一個(gè)搭接接頭，時(shí)，思索一個(gè)搭接接頭，搭接長(zhǎng)

10、度及配筋構(gòu)造按搭接長(zhǎng)度及配筋構(gòu)造按03G101-1規(guī)定計(jì)算。規(guī)定計(jì)算。 單根長(zhǎng)單根長(zhǎng)l1 =423.760.45 20.03215d1.234d = 13.566 m 上部縱筋長(zhǎng)上部縱筋長(zhǎng)L1 = 13.5662 = 27.132 m 上部縱筋質(zhì)量上部縱筋質(zhì)量220 M1 = 27.1322.47kg/m2 = 134.03kg 梁下部受力縱筋梁下部受力縱筋322：采用在：采用在中間支座錨固中間支座錨固 兩端跨單根長(zhǎng)兩端跨單根長(zhǎng) l21 =40.2250.20.030.025柱縱筋柱縱筋15d34d2 = 10.096 m 中間跨單根長(zhǎng)中間跨單根長(zhǎng) l22 = 3.760.42lae = 3.760.4234d = 4.856 m 下部縱筋長(zhǎng)下部縱筋長(zhǎng) l2 =10.0964.8563 = 44.856 m 下部縱筋質(zhì)量下部縱筋質(zhì)量 M2 = 44.856 m2.98 kg/m2 = 267.34 kg 2箍筋箍筋8，按，按03G101-1，思索彎鉤，思索彎鉤。 單根長(zhǎng)度按單根長(zhǎng)度按 l =0.250.4280.025 280.008 = 1.524 m 加密區(qū)箍筋根數(shù)，按規(guī)