钢筋混凝土结构隔震设计中的模型转换问题*
余文正1,陶 忠1,张龙飞2,杨瑞欣3

(1.昆明理工大学,云南 昆明 650224; 2.云南震安减震技术有限公司,云南 昆明 650236; 3.云南怡成建筑设计有限公司,云南 昆明 650118)

隔震设计; PKPM模型; ETABS新建模型; ETABS转换模型

Research of Model Transformation Problem in Isolation Design for Reinforced Concrete Structure
YU Wen-zheng1,TAO Zhong1,ZHANG Long-fei2,YANG Rui-xin3

(1.Kunming University of Science and Technology,Kunming 650224,Yunnan,China)(2. Yunnan Zhen'an Anti-Earthquake Technology Co.Ltd.,Kunming 650236,Yunnan,China)(3. Yunnan Yicheng Architectural Design Co.Ltd.,Kunming 650118,Yunnan,China)

isolation design; PKPM model; ETABS model; YJK transformation model

备注

对钢筋混凝土剪力墙结构隔震设计中模型转换问题进行研究,通过对比分析ETABS新建隔震模型和YJK转换隔震模型与PKPM原模型在总质量、主振型周期及各层地震剪力上的差异,得出以下结论:(1)PKPM模型与ETABS模型总质量存在差异主要有3方面原因,一是重力加速度取值不同; 二是是否考虑荷载折减; 三是是否考虑重叠部分质量;(2)新建ETABS模型与转换ETABS模型总质量和主振型周期存在差异的主要原因是转换后模型与新建模型在部分构件所采用的计算单元不同;(3)PKPM模型与ETABS新建模型的地震剪力较接近,与ETABS转换模型的地震剪力相差较大,主要原因是与PKPM模型的质量和周期相比较,新建模型都较接近,而转换模型偏差较大。

Aiming to studying the model transformation problems in isolation design of reinforced concrete shear wall structure,we done a comparative analysis the difference in the total mass,the period of main vibration mode and earthquake shear of each layer among the PKPM model,new ETABS model and transformation ETABS model by YJK. The research result shows that:(1)The three main reasons of the total mass difference between ETABS model and PKPM model is the difference of gravity acceleration value,whether to consider variable load reduction and mass of overlapping part;(2)Because of the difference of the calculation element about the beam used in new ETABS model and transformation ETABS model,the total mass and the period of main vibration mode are different;(3)Owing to the mass and the period of structure in the PKPM model are closer to that in the new ETABS model,but bigger than that in the transformation ETABS model,the deviation of the earthquake shear is small between PKPM and new ETABS model,is bigger between PKPM and transformation ETABS model