CAJ | 학술논문

严格控制新型高压煤气柜内压弯曲，是保证结构气密性和正常运行的关键问题，其受力模型为具有多根环向加筋圆柱壳受局部内压作用的弹性弯曲.把弹性地基板条梁法拓展应用到该结构体系；同时对传统离散加筋法进行改进，考虑了壳体厚度、半径及加筋肋间距对结构环向刚度的影响.以30万m3新型煤气柜为例，采用弹性地基板条梁法、改进离散加筋法、密加筋法和有限元法进行了分析.在此基础上，给出了判定环向加筋圆柱壳密肋、稀肋的方法.分析结果表明，弹性地基板条梁法具有适用性强、精度高、效率好；当环向加筋间距dr>3.875(Rh)1/2时，改进离散加筋法计算效率较高.
엄격공제신형고압매기거내압만곡，시보증결구기밀성화정상운행적관건문제，기수력모형위구유다근배향가근원주각수국부내압작용적탄성만곡.파탄성지기판조량법탁전응용도해결구체계；동시대전통리산가근법진행개진，고필료각체후도、반경급가근륵간거대결구배향강도적영향.이30만m3신형매기거위례，채용탄성지기판조량법、개진리산가근법、밀가근법화유한원법진행료분석.재차기출상，급출료판정배향가근원주각밀륵、희륵적방법.분석결과표명，탄성지기판조량법구유괄용성강、정도고、효솔호；당배향가근간거dr>3.875(Rh)1/2시，개진리산가근법계산효솔교고.
The bending of a new typical gas holder under gas pressure is crucial to ensure the normal operation of the structure.It can be simplified to elastic bending of ring stiffened cylindrical shell,which is under partial internal pressure and has multiple circular reinforced ribs.Stripe Beam on Elastic Foundation Method (SBEFM)was extendable to the structure system.At the same time,traditional discrete stiffened method (TDSM)was improved.A gas holder of 300 000 m3 was taken as an example for analysis.On this basis,the method j udging ring stiffened cylindrical shell smeared or discrete was presented.The new anal-ysis shows that SBEFM has a wider applicability,higher accuracy and better efficiency than other methods and the improved discrete stiffened method is effective when the ring spacing is greater than 3.875 (Rh)1/2 .