The paper deals with characteristics of seismic response of prestressed concrete structures,and some problems related to damping modification factor formulas of response spectrum and seismic effect coefficient curve of prestressed concrete structure under the horizontal seismic action are studied.
本文研究预应力混凝土结构地震反应的特点 ,探讨了反应谱的阻尼修正公式及确定预应力混凝土结构水平地震作用的地震影响系数曲线问
Three ductility degrees and corresponding force modification factors for different structure types are suggested in foreign seismic codes,and take into account overstrength factor varied.
国外多数抗震设计规范对各种类型结构建议了3档延性等级和地震力调节系数的可选择方案,并考虑了不同程度的超强,通过对我国9度区3跨6层钢筋混凝土框架结构进行的非线性动力反应分析,结果表明,赋予不同屈服水准的框架结构具有相近的超强水准。
Dynamic P-Δ effects on seismic force modification factors;
动力P-Δ效应对地震力调整系数的影响
Based on an elasto-plastic time-history earthquake analysis of a single degree of freedom system(SDOF),the seismic force modification factor R of the modified-Clough(MC) model,which can be employed to represent structures that exhibit stiffness degradation when subjected to cyclic loading,is investigated.
采用反向加载时刚度退化的修正克拉夫(Modified-Clough,MC)滞回模型,计算了单自由度体系(SDOF)在四类场地下各74～106条地震波输入后的弹塑性动力时程响应,得到了不同自振周期、延性、阻尼比和后期刚度系数等参数组合下的地震力调整系数R。
The analytical results indicate that the yield seismic coefficient, which decreases with time, is strongly affected by some soil parameters, i.
分析结果表明,由于孔压的累积,屈服地震系数将随时间而减小,并且明显地受到有效粘聚力、初始孔压比等参数的影响。
Research on seismic influence coefficient of seismic isolated structure with different damping ratio
隔震结构不同阻尼比地震影响系数曲线的改进研究
EFFECTS OF GROUND MOTION DURATION ON DAMPING REDUCTION FACTOR
地震动持时效应对阻尼折减系数的影响
Research on Empirical Relationship of Earthquake Magnitude Scales and Its Influence on Seismicity Parameters
震级转换关系及其对地震活动性参数的影响研究
The influence of isolator characteristics on the seismic response of base-isolated tank
铅芯橡胶支座参数对隔震储罐地震响应的影响
A Study on the Influence of Seismic Wave Inputting Interface on Ground Motion Parameters
地震动输入界面的选取对地震动参数的影响
Characters of filter in seismograph and its influence on seismic data.
地震仪滤波器特性及其对地震数据的影响
ANALYSIS OF IMPACT OF SOURCE REGION STRUCTURE ON SEISMOLOGY PARAMETER SCAN RESULTS
震源区构造对地震学参数扫描结果的影响分析
Study on Influence of Site Conditions to Ground Motion Parameters in Shandong Area
山东地区场地条件对地震动参数影响的研究
Analysis of Structural Parameter Effect on Seismic Response of Self-anchored Suspension Bridge
自锚式悬索桥结构参数对地震响应的影响分析
Analysis on Influence of the Input Parameters of Bedrock on Site Earthquake Response
基岩输入参数对场地地震反应的影响分析
QUANTITATIVE RELATIONS BETWEEN FOCAL PARAMETERS AND MAGNITUDE OF EARTHQUAKES OCCURRED IN YUNNAN PROVINCE
云南地震震源参数与震级的定量关系
Study on the Effect of Site Condition to Ground Motion Amplitude and Attenuation Relations;
场地条件对地震动峰值及衰减关系的影响研究
The appication of digital photogrammetry grid in the fast response for Wenchuan Earthquake rescue
数字摄影测量网格在汶川大地震中的快速响应
On the geometric parameters of the earthquake under the impact of node-KK
浅议几何参数对地震作用下KK型节点的影响
EFFECT OF WENCHUAN EARTHQUAKE ON SEISMIC ACTIVITY IN HUBEI
汶川地震对湖北地震活动趋势的影响
Influence of geometry on high-density seismic data acquisition
观测系统对高密度地震采集资料的影响
The Influence of Di-directional Earthquake to Selecting Waves in Time History Analysis and Column Design
双向地震对地震波选取及柱抗震设计的影响
Strong Motion Records and Earthquake Effect in Jiangsu Province Related to Wenchuan M 8.0 Earthquake
汶川地震在江苏的强震动记录及地震影响场