摘要
简要介绍了坝后背管结构力学弹性中心法,并利用结构力学弹性中心法对国内外已建坝后背管工程和地面外包混凝土钢管工程进行结构分析和配筋优化。分析发现,坝后背管外包混凝土的外圈钢筋应力大于内圈钢筋应力和钢管应力,外包混凝土厚度设计基本合理,但在钢筋布置上值得进一步优化。结构力学弹性中心法计算结果可靠,方法简便。
This paper briefly introduces the elasticity center method of structure mechanics for the penstock laid on downstream face of dam Then using the method to calculate the built projects with penstock laid on downstream face of dam and laid on rock slope It is found that the stresses of outer steel bar are bigger than those of steel penstock and inner steel bar in reinforced concrete around the steel penstock The thickness of concrete around the steel penstock is reasonable basically, but the arrangement of steel bars needs to be optimized in order to reduce the stresses of outer steel bar It showed that the results of elasticity center method of structure mechanics for calculating the penstock on the downstream face of dam are credibility and this method is simple
出处
《水力发电》
北大核心
2003年第9期31-34,共4页
Water Power
基金
国家电力公司2001年度科研项目(SP11 2001 03 46 03)
关键词
水电站
压力钢管
坝后背管
结构力学
弹性中心法
计算模型
penstock laid on the downstream face of dam, structure calculate, elasticity center method, hydraulic power plant
