板厚（mm）压型板重量（kg/m2)截面惯性矩（cm4/m)截面抵抗矩（cm3/m)有效宽度（mm）0.810.45127.533.346001.013.08158.241.691.215.7190.150.04YX75-200-600组合楼板施工允许***大无支撑跨度间距-Q235组合楼板厚度（mm）压型板厚度（mm）组合板自重（kg/m2)***大无支撑时的跨度间距（m）单跨跨度L双跨跨度L三跨跨度L1500.82702.983.203.251.02733.203.573.501.22763.403.763.681600.82952.923.103.201.02983.143.473.441.23013.323.703.641700.83202.873.023.121.03233.083.383.381.23263.273.663.581800.83452.822.963.051.03483.023.303.321.23513.223.603.52YX75-200-600组合楼板施工允许***大无支撑跨度间距-Q345组合楼板厚度（mm）压型板厚度（mm）组合板自重（kg/m2)***大无支撑时的跨度间距（m）单跨跨度L双跨跨度L三跨跨度L1500.82702.983.353.251.02733.203.573.501.22763.403.763.681600.82952.923.283.201.02983.143.543.441.23013.323.703.641700.83202.873.233.121.03233.083.463.381.23263.273.663.581800.83452.823.183.081.03483.023.303.32YX75-200-600)