大直径混凝土筒仓仓壁温度应力参数分析  

Parametric Analysis of the Wall Thermal Stress of Large Diameter Concrete Silos

作　　者：孙巍巍[1] 孟少平[2] 栾文彬[3] 

机构地区：[1]南京理工大学土木工程系,210094 [2]东南大学RC/PC结构教育部重点实验室,南京210096 [3]江苏新筑预应力工程有限公司,南京210017

出　　处：《特种结构》2009年第3期58-60,共3页Special Structures

摘　　要：内外温差对仓壁配筋设计影响较大,起控制作用的环向弯矩可按等效环向力考虑。参数分析结果表明温度作用与内外温差、弹性模量、仓壁厚度等参数呈线性变化关系,且温度作用与贮料荷载作用下最大环向力比值随筒仓直径的增加应呈下降趋势。Differential temperature change has a great effect on the reinforcement d^sign of silo wall. The circumferential moment as control role may be considered as equivalent hoop force. The results of parametric analysis show temperature action is linear with differential temperature change, elastic modulus and the thickness of silo wall. Moreover, the ratio of temperature action to the hoop force maximum value of silo wall decreased when the inner diameter of large diameter silo increased.

关 键 词：混凝土 筒仓 温度应力 大直径 内外温差 

分 类 号：TU375[建筑科学—结构工程]