Thermal stresses in sluices are analysed systematically by 3D FEM,including the stresses due to heat of hydration in construction period,the stresses due to annual variation of air temperature,and the stresses due to cold wave.
用三维有限元对水闸温度应力进行了系统的分析,包括施工期水化热引起的应力,气温年变化引起的应力及寒潮引起的应力,这3种温度应力单独作用都不会引起混凝土裂缝,但组合应力可能引起裂缝。
This paper has systematically studied the influence of three temperature loads,namely,cold wave,air temperature daily variation amplitude and air temperature yearly variation amplitude,on surface s.
课题组通过研制的仿真分析软件FZFX3D,考虑混凝土浇筑过程,以离开基础约束区一定距离的某个浇筑块为研究对象,系统研究寒潮、气温日变幅和气温年变幅等三种温度荷载对向家坝碾压混凝土纵向围堰表面应力的影响。
Using the time series of global temperature change and atmospheric CO2 concentration,the basic characteristics of global temperature change and relationship between global temperature change and increase of atmospheric CO2 are studied.
本文利用近百年来全球气温变化距平序列、南极Ｓｉｐｌｅ冰芯中提取的ＣＯ２序列和夏威夷ＭａｕｎａＬｏａ观测的ＣＯ２序列，分析了全球近百年来的气温变化特征及其与大气ＣＯ２浓度增加的关系。
The Climate of China as Based Upon the Analysis of Monthly Temperatures
由年温变化之谐波分析论中国气候
the annual range of temperature
每年的温度变化范围
Change of Accumulated Temperature and Evolution Trends of Accumulated Temperature Zone over Last 45 Years in Heilongjiang Province
黑龙江省近45年积温变化及积温带的演变趋势
Analysis on the Abrupt Change Points of Chinese Temperature in the Last 120 Years
近百余年我国气温变化的突变点分析
The Change of Annual Mean Temperature in Monsoon Area of East China
中国东部季风区1961年～2006年年平均气温变化特征
The Changing Characteristics of Winter Temperature and Negative Accumulated Temperature in Kuerle during 1959-2008
库尔勒1959-2008年冬季气温及负积温变化特征
Change of the Accumulated Temperature on 0℃ Critical Temperature in Xinjiang in Last 50 years
新疆近45年0℃界限温度积温变化特征分析
TEMPERATURE CHANGES OVER EURASIA DURING THE LATE SUMMER OF 1979
1979年夏末欧亚上空的温度变化
Wenzhou has experienced great changes in the past 10 years.
温州在过去10年内经历很大变化。
Global Mean Tropospheric Temperature Trends Test during the Last 50 Years;
近50年全球对流层气温变化趋势检测
Summer air temperature variation from 1951 to 2007 in northern China
1951—2007年华北地区夏季气温变化特征
Spatial and Temporal Characteristics of Maximum Temperature Variations in Recent 45 Years in Anhui
安徽省近45年最高气温时空变化特征
The change of temperature in eastern Loess Plateau
黄土高原东部近45年气温变化研究
Wind-Chill Temperature Changes in Winter over China during the Last 50 Years
近50年来中国冬季风寒温度的变化
Change Characteristics Analysis of Maximum Temperature in Rizhao City in Past 50 Years
日照市近50年最高气温变化特征分析
Pentad Average Temperature Changes of Inner Mongolia During Recent 40 Years
近40年内蒙古候平均气温变化趋势
Analysis of the Temperature Changes Characteristics in Yongfu County during 1960 and 2000
1960～2000年永福县气温变化特征分析
Studies on the Temperature Variation Characteristics in Rongjiang Region from 1954 to 2006
1954～2006年榕江地区气温变化特征研究
