2 4圖1.1荷載傳遞示意圖三角形荷載和梯形荷載等效為均布荷載pe:三角形荷載作用：梯形荷載作用：其中：g,q一分別為板面的均布恒荷載以及均布活荷載；lo1,lo2一分別為短跨、長跨的計算跨度。AB跨左板梯形荷載轉換系數(shù)：a1=0.5×4.5/7.5=0.3AB跨右板梯形荷載轉換系數(shù)：a1=0.5×4.5/BC跨左板梯形荷載轉換系數(shù)：α1=0.5×3/4.5=0.33BC跨左板梯形荷載轉換系數(shù)：α1=0.5×3/4.5=0.33CD跨板梯形荷載轉換系數(shù)：a1=0.5×4.5/7.5=0.3由第三章計算可知：類型活載辦公室走廊標準層女兒墻荷載(kN/m2)21.1.1框架梁荷載計算①AB跨梁荷載計算首先判斷AB跨板是否為雙向板：(1)屋面板傳遞給梁的荷載：(2)樓面板傳遞給梁的荷載：AB跨梁自重標準值：3.625kN/m;AB跨墻體自重標準值：4.56kN/m故AB跨梁均布荷載為：(3)屋面梁：恒載=AB跨梁自重+屋面板傳遞的荷載=3.625+11.88=15.51kN/m活載=屋面板傳遞的荷載=1.41kN/m(4)樓面梁：活載=樓面板傳遞的荷載=5.63kN/m②BC跨梁荷載計算首先判斷BC跨板是否為雙向板：(1)屋面板傳遞給梁的荷載：板為雙向板，根據(jù)彈塑性分析可取折減系數(shù)取5/8(2)樓面板傳遞給梁的荷載：BC跨梁自重標準值：2.215kN/m;(3)屋面梁：恒載=BC跨梁自重+屋面板傳遞的荷載=2.215+7.92=10.14kN/m活載=屋面板傳遞的荷載=0.94kN/m(4)樓面梁：恒載=BC跨梁自重+樓面板傳遞的荷載=2.215+1.66+0=8.88kN/m活載=樓面板傳遞的荷載=4.69kN/m(1)屋面板傳遞給梁的荷載：(2)樓面板傳遞給梁的荷載：(3)屋面梁：(4)樓面梁：=3.625+9.98+4.56=18在計算出每一跨的均布荷載之后，還需要對每一(1)頂層柱：恒載=女兒墻自重+縱梁自重+AB梁自重+AB跨板傳遞的梯形荷載+AB跨板=1.71×2.25+1.71×2.25+3.625×2.25+3.625×2.25+3.625×7.27.2/2+4.224×(1-2×0.3^2+0.3^3)×4.5/2×2.25+4.224×(1-2×0.3^活載=AB跨板傳遞的梯形荷載+AB跨板傳遞的三角形荷載(2)標準層柱：恒載=墻體自重+縱梁自重+AB梁自重+AB跨墻體自重+AB跨板傳遞的梯形荷載+AB跨板傳遞的三角形荷載+次梁自重=4.56×2.25+4.56×2.25+3.625×2.25+3.625×2.25+3.625×7.2.25+2.92×7.2/4+2.92×7.2/4=活載=AB跨板傳遞的梯形荷載+AB跨板傳遞的三角形荷載(1)頂層柱：恒載=縱梁自重+AB梁自重+BC梁自重+AB跨板傳遞的梯形荷載+AB跨板傳遞的三角形荷載+BC跨板傳遞的梯形荷載+BC跨板傳遞的三角形荷載+=3.625×2.25+3.625×2.25+3.625×7.2/2+2.215×2.4/2+07.2/2+4.224×(1-2×0.3^2+0.3^3)×4.5/2×2.25+4.224×(1-2×4.5/2×2.25+4.224×(1-2×0.33^2+0.33^3)×3/2×2.25+4.20.33^2+0.33^3)×3/2×2.25+7.92×2.4/2+2.92×0/4+2.活載=AB跨板傳遞的梯形荷載+AB跨板傳遞的三角形荷載+BC跨板傳遞的梯形荷載+BC跨板傳遞的三角形荷載4.5/2×2.25+0.5×(1-2×0.33^2+0.33^3)×3/2×2.25+0.5×(1-2×0.33^2(2)標準層柱：恒載=縱梁自重+AB梁自重+BC梁自重+AB跨墻體自重+墻體自重+AB跨板傳遞的梯形荷載+AB跨板傳遞的三角形荷載+BC跨板傳遞的梯形荷載+BC跨板傳遞的三角形荷載+次梁自重=3.625×2.25+3.625×2.25+3.625×7.2/2+2.215×2.4/2+4.56×22.25+9.98×7.2/2+3.55×(1-2×0.3^2+0.3^3)×4.5/2×2.25+30.3^2+0.3^3)×4.5/2×2.25+3.55×(1-2×0.33^2+0.33^3)×3(1-2×0.33^2+0.33^3)×3/2×2.25+1.66×2.4/2+2.92×0/4+×0/4+2.92×7.2/4=173.44kN活載=AB跨板傳遞的梯形荷載+AB跨板傳遞的三角形荷載+BC跨板傳遞的梯形荷載+BC跨板傳遞的三角形荷載0.33^2+0.33^3)×3/2×2.25+4.69×2③C柱集中荷載計算：(1)頂層柱：恒載=縱梁自重+CD梁自重+BC梁自重+CD跨板傳遞的梯形荷載+BC跨板傳遞的梯形荷載+CD跨板傳遞的三角形荷載++BC跨板傳遞的三角形荷載+次梁=3.625×2.25+3.625×2.25+3.625×7.2/2+2.215×2.4/2+07.2/2+4.224×(1-2×0.33^2+0.33^3)×3/2×2.25+4.224×(1-2×03/2×2.25+4.224×(1-2×0.3^2+0.3^3)×4.5/2×2.25+4.224×(1-4.5/2×2.25+7.92×2.4/2+2.92×7.2/4+2.92×0/4+2.92×7.2/4+2.92×0/4活載=CD跨板傳遞的梯形荷載+BC跨板傳遞的梯形荷載+CD跨板傳遞的三角形荷載+BC跨板傳遞的三角形荷載=1.41×7.2/2+0.5×(1-2×0.33^2+0.33^3)×3/2×2.25+0.33^2+0.33^3)×3/2×2.25+0.5×(1-2×0.3^2+0.3^3)×4.5/2×20.3^2+0.3^3)×4.5/2×2.25+0.94×2(2)標準層柱：恒載=縱梁自重+CD梁自重+BC梁自重+CD跨墻體自重+墻體自重+CD跨板傳遞的梯形荷載+CD跨板傳遞的三角形荷載+BC跨板傳遞的梯形荷載+BC跨=3.625×2.25+3.625×2.25+3.625×7.2/2+2.215×2.4/2+4.56×7.2.25+4.56×2.25+9.98×7.2/2+3.55×(1-2×0.33^2+0.33^3)×3/2×2.25×0.33^2+0.33^3)×3/2×2.25+3.55×(1-2×0.3^2+0.3^3)×4.5/2×2.25+3.55×(1-2×0.3^2+0.3^3)×4.5/2×2.25+1.66×2.4/2+活載=CD跨板傳遞的梯形荷載+BC跨板傳遞的梯形荷載+CD跨板傳遞的三角形荷載+BC跨板傳遞的三角形荷載=5.63×7.2/2+2.5×(1-2×0.33^2+0.33^3)×3/2×2.25+0.33^2+0.33^3)×3/2×2.25+2×(1-2×0.3^2+0.3^3)×4.5/20.3^2+0.3^3)×4.5/2×2.25+4.69×2④D柱集中荷載計算：(1)頂層柱：恒載=女兒墻自重+縱梁自重+CD梁自重+CD跨板傳遞的梯形荷載+CD跨板傳遞的三角形荷載+次梁自重=1.71×2.25+1.71×2.25+3.625×2.25+3.625×2.25+3.625×7.27.2/2+4.224×(1-2×0.3^2+0.3^3)×4.5/2×2.25+4.224×(1-2×0.3^活載=AB跨板傳遞的梯形荷載+AB跨板傳遞的三角形荷載(2)標準