25米空心板梁钢绞线伸长量计算表钢束梁类编号阶段注解钢绞线各段钢控制应绞线长力σK度（m）（MP）张拉力P（KN）各段切钢绞线钢绞线截面积AP线夹角根数（rad）（根）（mm2）钢绞线弹模EP（x105Mp）KX+Uθe-(kx+uθ）平均张拉力Pp(KN)一端伸长量ΔL(㎝）理论伸长量ΔL(㎝）理论伸长总伸长量ΔL(㎝）中N1跨中板N2中N1跨边板N2边N1跨中板N2边跨边板N2N11直线段4.67813951171.8068402.010.0070170.9930081167.6983.2353072曲线段2.7931163.60.1468402.010.039090.9616651141.1481.887728.3463直线段4.8821118.7068402.010.0073230.9927041114.6133.22281直线段1.80413951367.1079802.010.0027060.9972981365.2521.2503372曲线段2.7931363.40.1479802.010.039090.9616651337.11.588.3053直线段7.7981310.8079802.010.0116970.9883711303.165.15221直线段4.67813951171.8068402.010.0070170.9930081167.6983.2353072曲线段2.7931163.60.1468402.010.039090.9616651141.1481.887728.3463直线段4.8821118.7068402.010.0073230.9927041114.6133.22281直线段1.80413951367.1079802.010.0027060.9972981365.2521.2503372曲线段2.7931363.40.1479802.010.039090.9616651337.11.588.3053直线段7.7981310.8079802.010.0116970.9883711303.165.15221直线段4.67813951171.8068402.010.0070170.9930081167.6983.2353072曲线段2.7931163.60.1468402.010.039090.9616651141.1481.887728.5233直线段5.1521118.7068402.010.0077280.9923021114.3883.4004531直线段1.80413951367.1079802.010.0027060.9972981365.2521.2503372曲线段2.7931363.40.1479802.010.039090.9616651337.11.588.4833直线段8.0681310.8079802.010.0121020.9879711302.75.33681直线段4.67813951367.1079802.010.0070170.9930081362.3153.2353072曲线段2.7931357.50.1479802.010.039090.9616651331.3391.887728.5233直线段5.1521305.1079802.010.0077280.9923021300.1193.4004531直线段1.80413951367.1079802.010.0027060.9972981365.2521.2503372曲线段2.7931363.40.1479802.010.039090.9616651337.11.588.4833直线段8.0681310.8079802.010.0121020.9879711302.75.3368备注：1、K值取0.0015；U值取0.25；钢绞线张拉时为单股两端张拉；钢绞线控制应力为0.75fpk=0.75*1860=1395MP复核：监理：日期：16.716.616.716.617.017.017.017.0 2、钢绞线的长度包括了千斤顶内的长度（40CM）.编制：25米空心板梁钢绞线伸长量计算表梁类钢束编号阶段简支端简支端连续端连续端简支端简支端连续端连续端简支端简支端连续端连续端简支端简支端连续端连续端注解直线段曲线段直线段曲线段直线段曲线段直线段曲线段直线段曲线段直线段曲线段直线段曲线段直线段曲线段各段钢绞钢绞线张拉线长度控制应力P（m）力σK（MP9.43139511722.793139511729.16139511722.793139511729.472139513672.793139513679.202139513672.793139513679.43139513672.793139513679.16139513672.793139513679.472139513672.793139513679.202139513672.79313951367各段切线夹角（rad）00.139600.139600.139600.139600.139600.139600.139600.1396钢绞线根钢绞线截面钢绞线弹模EP积AP数（根）（N/mm2）（N/mm26840）1.9768401.9768401.9768401.9779801.9779801.9779801.9779801.9779801.9779801.9779801.9779801.9779801.9779801.9779801.9779801.97KX+Uθ0.0141450.039050.013740.039050.0142080.039050.0138030.039050.0141450.039050.013740.039050.0142080.039050.0138030.03905平均张拉力平均张伸长量Δ理论伸长量拉应力Pp(MP)L(㎝）ΔL(㎝）（N）#REF!1171800#REF!#REF!1171800#REF!#REF!#REF!1171800#REF!#REF!1171800#REF!#REF!1367100#REF!#REF!1367100#REF!#REF!#REF!1367100#REF!#REF!1367100#REF!#REF!1367100#REF!#REF!1367100#REF!#REF!#REF!1367100#REF!#REF!1367100#REF!#REF!1367100#REF!#REF!1367100#REF!#REF!#REF!1367100#REF!#REF!1367100#REF!N1边跨中板N2N1边跨边板N2注：K值取0.0015；U值取0.25；钢绞线张拉时为单股两端张拉；钢绞线控制应力为0.75fpk=0.75*1860=1395MP编制：复核：备注P
