| 1. | Analysis on the wainscot distortion of the middle small column type oilcan and its measures
中小型圆柱形贮罐壁板变形分析与对策 |
| 2. | By researching heat conduction of air interlayer , the coefficient of heat transmission expression of vertical space layer is derived in stable condition
对罐壁空气夹层的导热问题进行了研究。推导出了稳定状态下，垂直有限空间夹层中传热系数的表达式。 |
| 3. | The numerical results show that the elephant foot bulging is in fact buckling failure which is caused by the overcritical compressive stress rather than intensity failure
分析表明：立式储液罐罐壁“象足”变形主要是由罐壁纵向压应力超过临界应力而产生的局部屈曲破坏，并非强度破坏。 |
| 4. | 5 . in response to heat conduction test , air heat - insulation course is proved to work well , it reduces temperature difference of tank walls greatly and prevents cracks effectively
进行了罐体热传导试验，证明了空气隔热层具有令人满意的效果，大大降低了罐壁温差，有效预防了温度裂缝的发生。 |
| 5. | The elephant foot bulging deformation develops with the increasing stress of the rigid wall , which is caused by the uplift of the tank bottom and the impaction between the tank bottom and the foundation
因罐底提离导致的罐底与基础反复撞击加大了作用在罐壁上的应力，使罐壁底部“象足”变形不断发展，最终导致罐壁撕裂。 |
| 6. | It is also shown that the buckling failure of the rigid wall arises easier from the horizontal seismic ground motion than from the vertical one , therefore the elephant foot bulging deformation is also easier produced
在完全相同地震加速度作用下，水平地震作用比竖向地震作用罐壁更早更容易进人屈曲状态，产生“象足”变形。 |
| 7. | The elephant foot bulging deformation of rigid walls of liquid - storage tanks under horizontal and vertical seismic ground motions is analyzed by using the finite element model involving fluid sloshing and tank bottom uplift with ansys
摘要基于ansys软件建立了考虑液体晃动和罐底提离立式储液罐有限元模型，分别进行了水平地震和竖向地震作用下罐壁“象足”变形分析。 |
| 8. | Shell manhole series shall be set on lower tank shell course for people and going out of the tank . the rainforcing plate of manhole is out of socpe supply . you want . acorrding to user drawing , our company can manufacture any type of the products user want
罐壁人口装于油罐下部，人可以由此进入，本产品出厂时不带加强版，如需其他标准或非标人孔，只需提供标准和纸图，我公司即可生产。 |
| 9. | The results show that at the initial stage , the temperature difference between internal and external wall surfaces is considerable and the temperature distribution is not uniform ; the initial stage belongs in dangerous time period because of the considerable temperature stresses
试验结果表明：加载初期储罐内外表面温差较大且分布很不均匀，是罐壁产生较大温度应力的危险时间段。 |
