电力勘测设计
電力勘測設計
전력감측설계
ELECTRIC POWER SURVEY
2013年
6期
60-64,76
,共6页
混凝土局部受压%扩散角%板厚度%有效宽度
混凝土跼部受壓%擴散角%闆厚度%有效寬度
혼응토국부수압%확산각%판후도%유효관도
diffusion angle%concrete local compression%plate thickness%effective width
现行《架空送电线路杆塔结构设计技术规定》(DL/T5154-2002)，对方型塔脚底板受压时按照均布反力验算底板的强度(暂且不论此观点的正确性)，在均布反力的作用下，不再验算塔脚板下混凝土立柱的局部受压；而钢管塔的地脚法兰板为圆环状，底板的面积和板的厚度往往小于方型塔脚底板，其混凝土局部受压的计算在现行的规范和规定中均未列出；“1000kV淮南-上海(皖电东送)输电线路工程”全线为双回路钢管塔，在地脚法兰的螺栓采用小规格多数量，用本文提出的计算方法，可满足塔脚法兰底板下混凝土立柱的局部受压。
現行《架空送電線路桿塔結構設計技術規定》(DL/T5154-2002)，對方型塔腳底闆受壓時按照均佈反力驗算底闆的彊度(暫且不論此觀點的正確性)，在均佈反力的作用下，不再驗算塔腳闆下混凝土立柱的跼部受壓；而鋼管塔的地腳法蘭闆為圓環狀，底闆的麵積和闆的厚度往往小于方型塔腳底闆，其混凝土跼部受壓的計算在現行的規範和規定中均未列齣；“1000kV淮南-上海(皖電東送)輸電線路工程”全線為雙迴路鋼管塔，在地腳法蘭的螺栓採用小規格多數量，用本文提齣的計算方法，可滿足塔腳法蘭底闆下混凝土立柱的跼部受壓。
현행《가공송전선로간탑결구설계기술규정》(DL/T5154-2002)，대방형탑각저판수압시안조균포반력험산저판적강도(잠차불론차관점적정학성)，재균포반력적작용하，불재험산탑각판하혼응토립주적국부수압；이강관탑적지각법란판위원배상，저판적면적화판적후도왕왕소우방형탑각저판，기혼응토국부수압적계산재현행적규범화규정중균미렬출；“1000kV회남-상해(환전동송)수전선로공정”전선위쌍회로강관탑，재지각법란적라전채용소규격다수량，용본문제출적계산방법，가만족탑각법란저판하혼응토립주적국부수압。
According to《Technical Regulation of design for tower and pole structure of overhead transmission line》(DL/T5154-2002),the strength analysis of the square tower foot plate under compression should be calculated with the uniform reaction force(Putting aside the correctness of this view), in no longer checking the concrete local compression under the tower bottom plate;steel tube tower foot flange plate is an annular area of the base plate and the thickness of the plate is often less than the square tower foot plate, which concrete local compression of the calculation were not listed in the present Code and Technical regulations;for"1000kV Huainan-Shanghai (Anhui Power East) transmission line ", the project was made up of double-loop steel tube tower, the foot flange bolts using a small diameter of specifications and more number, with the calculation method proposed in this paper, which can meet the local compression of the concrete column under the tower feet.
