准东-华东±1100kV特高压直流输电线路工程杆塔设计原则国家电网公司直流建设部二○一五年十月准东-华东±1100kV特高压直流输电线路工程杆塔设计原则目录TOC\o"1-2"\h\z\uHYPERLINK\l"_Toc433045477"1工程概况PAGEREF_Toc433045477\h1HYPERLINK\l"_Toc433045478"2技术标准和规程规范PAGEREF_Toc433045478\h1HYPERLINK\l"_Toc433045479"3电气条件PAGEREF_Toc433045479\h2HYPERLINK\l"_Toc433045480"3.1气象条件组合PAGEREF_Toc433045480\h2HYPERLINK\l"_Toc433045481"3.2导地线方案及参数PAGEREF_Toc433045481\h13HYPERLINK\l"_Toc433045482"3.3计算用最大风速PAGEREF_Toc433045482\h14HYPERLINK\l"_Toc433045483"3.4空气间隙PAGEREF_Toc433045483\h15HYPERLINK\l"_Toc433045484"3.5极间距取值PAGEREF_Toc433045484\h16HYPERLINK\l"_Toc433045485"3.6绝缘子串型及参数PAGEREF_Toc433045485\h17HYPERLINK\l"_Toc433045486"3.7导地线布置方式PAGEREF_Toc433045486\h26HYPERLINK\l"_Toc433045487"3.8防雷保护PAGEREF_Toc433045487\h26HYPERLINK\l"_Toc433045488"4杆塔型式和杆塔规划PAGEREF_Toc433045488\h27HYPERLINK\l"_Toc433045489"4.1杆塔型式PAGEREF_Toc433045489\h27HYPERLINK\l"_Toc433045490"4.2杆塔规划PAGEREF_Toc433045490\h27HYPERLINK\l"_Toc433045491"5荷载计算PAGEREF_Toc433045491\h50HYPERLINK\l"_Toc433045492"5.1导地线风荷载计算PAGEREF_Toc433045492\h50HYPERLINK\l"_Toc433045493"5.2绝缘子及金具荷载PAGEREF_Toc433045493\h51HYPERLINK\l"_Toc433045494"5.3杆塔荷载条件PAGEREF_Toc433045494\h52HYPERLINK\l"_Toc433045495"5.4电气荷载表PAGEREF_Toc433045495\h53HYPERLINK\l"_Toc433045496"5.5杆塔荷载计算PAGEREF_Toc433045496\h53HYPERLINK\l"_Toc433045497"5.6荷载组合PAGEREF_Toc433045497\h57HYPERLINK\l"_Toc433045498"6杆塔设计PAGEREF_Toc433045498\h59HYPERLINK\l"_Toc433045499"6.1构造要求PAGEREF_Toc433045499\h59HYPERLINK\l"_Toc433045500"6.2杆塔材料的使用PAGEREF_Toc433045500\h61HYPERLINK\l"_Toc433045501"6.3特殊杆塔设计PAGEREF_Toc433045501\h63HYPERLINK\l"_Toc433045502"6.4铁塔与基础连接设计PAGEREF_Toc433045502\h65HYPERLINK\l"_Toc433045503"附录1角钢构件轴心受力强度与稳定计算PAGEREF_Toc433045503\h69HYPERLINK\l"_Toc433045504"附录2耐张塔45度大风工况计算PAGEREF_Toc433045504\h71HY