地下结构抗浮稳定性合理计算方法研究  

Research on Reasonable Calculation Method for Stability Against Uplift of Underground Structures

作　　者：王成强 张婷[2] WANG Cheng-qiang;ZHANG Ting(Donghui Testing and Certification Group Co,Ltd,Jinan 250001,China;Shandong Yingcai College,Jinan 250104,China)

机构地区：[1]东汇检测认证集团有限公司,济南250001 [2]山东英才学院,济南250104

出　　处：《建材世界》2024年第5期68-71,共4页The World of Building Materials

摘　　要：有关抗浮稳定的现行规范主要有国标规范和地标规范两大类。众多规范对抗浮稳定计算规则要求不一致,有的要求采用抗浮设计值计算,有的要求采用抗浮标准值计算,有的要求采用水浮力计算,有的则要求采用水压力计算。通过分析四个常用规范的异同点,结合抗浮稳定力学原理及工程实例提出了合理性建议,并提出了两种抗浮稳定理论:K_(1)理论(水浮力理论)和K_(2)理论(水压力理论)。研究发现,以《广东规程》为代表的地标规范执行的是K_(1)理论,以《浮标》为代表的国标规范执行的是K_(2)理论,地标规范更符合力学原理。The current codes on stability against uplift mainly include two categories:national codes and local codes.Many codes have inconsistent requirements for stability against uplift calculation rules.Some require the use of against uplift design values,some require the use of against uplift characteristic values,some require the use of water buoyancy calculations,and some require the use of water pressure calculations.This paper analyze the similarities and differences between four commonly used standards,and proposes reasonable suggestions based on the principles of stability against uplift mechanics and engineering examples.Two stability against uplift theories,K_(1)theory(water buoyancy theory)and K_(2)theory(water pressure theory),are also proposed.Research has found that local codes represented by the Guangdong Specification implement the K_(1)theory,while national codes represented by the Technical standard for building engineering against uplift implement the K_(2)theory.Local codes are more in line with mechanical principles.

关 键 词：抗浮稳定 计算方法 规范 水浮力 

分 类 号：TU93[建筑科学—结构工程]