懸挑式扣件鋼管腳手架計(jì)算書80532

1、目錄目錄第一章工程概況................................................................2第二章大橫桿的計(jì)算............................................................2第三章小橫桿的計(jì)算............................................................5第四章扣

2、件抗滑力的計(jì)算........................................................7第五章連墻件的計(jì)算...........................................................13第六章懸挑梁的受力計(jì)算.......................................................15第七章懸挑梁的整體穩(wěn)定性計(jì)算....

3、.............................................17第八章拉桿的受力計(jì)算.........................................................18第九章拉桿的強(qiáng)度計(jì)算.........................................................19第十章錨固段與樓板連接的計(jì)算.....................

4、............................20支座最大彎矩為M2=(0.100.1090.1171.470)1.5002=0.412kN.m我們選擇支座彎矩和跨中彎矩的最大值進(jìn)行強(qiáng)度驗(yàn)算：=0.4121064788.0=85.948Nmm2大橫桿的計(jì)算強(qiáng)度小于205.0Nmm2滿足要求!3.撓度計(jì)算最大撓度考慮為三跨連續(xù)梁均布荷載作用下的撓度計(jì)算公式如下:靜荷載標(biāo)準(zhǔn)值q1=0.0380.052=0.091kNm活荷載標(biāo)準(zhǔn)值

5、q2=1.050kNm三跨連續(xù)梁均布荷載作用下的最大撓度V=(0.6770.0910.9901.050)1500.04(1002.06105114920.0)=2.355mm大橫桿的最大撓度小于1500.0150與10mm滿足要求!小橫桿的計(jì)算小橫桿的計(jì)算小橫桿按照簡(jiǎn)支梁進(jìn)行強(qiáng)度和撓度計(jì)算，大橫桿在小橫桿的上面。用大橫桿支座的最大反力計(jì)算值，在最不利荷載布置下計(jì)算小橫桿的最大彎矩和變形。1.荷載值計(jì)算大橫桿的自重標(biāo)準(zhǔn)值P1=0.0381

6、.500=0.058kN腳手板的荷載標(biāo)準(zhǔn)值P2=0.1501.0501.5003=0.079kN活荷載標(biāo)準(zhǔn)值Q=3.0001.0501.5003=1.575kN荷載的計(jì)算值P=1.20.0581.20.0791.41.575=2.369kN小橫桿計(jì)算簡(jiǎn)圖2.抗彎強(qiáng)度計(jì)算最大彎矩考慮為小橫桿自重均布荷載與荷載的計(jì)算值最不利分配的彎矩和均布荷載最大彎矩計(jì)算公式如下:集中荷載最大彎矩計(jì)算公式如下:M=(1.20.038)1.050282.36