第39秦第3期 2017年6月
土水建筑与环境工程
Journal of Civil,Architectural &. Environmental Engineering
doi;10.11835/j.issn. 1674-4764. 2017.03. 013
八地脚螺栓刚性塔座板的承载力
白强，杨景胜，郭念，李正良
Vol. 39 No. 3 2znn
(1.中南电力设计院有限公司，武汶430071；2.重庆大学土木工程学院，重庆400044）
摘要：随着中国电网技术的发展，杆塔负荷越来越大，八地脚螺栓塔座板应用越趋普遍。但现有计算理论与实际情况不符，为了使八地脚螺栓塔座板的计算方法合理、可靠，通过试验对八地脚螺栓刚性塔座板承载力进行了研究，同时借助有限元对构件进行了参数化分析。结合经典力学理论、试验及有限元数据，提出了全新的计算方法，引入了等效计算宽度和有效力臂的概念，充分考虑了底板刚度，展曲后强度和垫板对承载力的影响，对工程设计具有指导意义。
关键词：八地脚螺栓：刚性塔座板；等效计算宽度；等效计算力臂；有限元：承载力
中图分类号：TU391
文献标志码：A
文章编号：1674-4764(2017)03-0099-08
Bearing capacity of rigid tower base plate with eight anchor bolts
BaiQiang'，YangJingsheng'，GuoNian'，LiZhengliang
(1. Central Southern China Electric Power Design Institute, Wuhan 430071, P. R. China 2. Schoolof of Civil Engineering, Chongqing University, Chongqing 4oo044, P. R. China
Abstract: With the Chinese power grid technology developed rapidly and the load applied on tower is going larger and larger, the tower base plate with eight anchor bolts has been used more commonly. Whilst the calculate theory is not comply with the actual condition. In order to make the calculate method more reasonable and reliable , The bearing capacity of Rigid tower base plate with eight anchor bolts is investigated through experiment and analytical parametric study was conducted to investigate the tower base plate by finite element method. Based on the result of experiment and finite element as well as classical mechanics theory, a new formula has been proposed which include the Equivalent calculating width and Equivalent calculating arm of force. This formula considered plate stiffness, post-buckling strength and subplate which influence the bearing capacity of tower base plate in this formula, thus the proposal formula is reasonable and effective, It is helpful in project design.
Keywords: Rigid tower base plate with eight anchor bolts; equivalent calculating width; equivalent calculating arm of force; finite element method; bearing capacity.
随着国家大力推进能源结构的调整，鼓励跨区输电项目，发展远距离大容量输电技术，优化资源配置，特高压输电工程得到迅猛发展。同时，为了节约
收稿日期：2017-01-10
土地资源，很多线路采用多回路共杆的送电模式。特高压和同塔多回路输电线路铁塔的基础作用力比普通线路铁塔增大较多，工程中常见的四地脚螺栓
基金项目：中南电力设计院有限公司科技项目（40-1A-KY201319-T02)，
作者简介：白强（1983-），男，高级工程师，主要从事输电线路设计，（E-mail)baiqiang@csepdi.com Received:2017-01-10
Foundation item: The Science and Technology Program of CSEPDI(No. 40-1A-KY201319-T02)
Author brief: Bai Qiang (1983-), senior engineer, main research interest: transmission line design, (E-mail) baiqiang @
csepdi. com.
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