强震观测建筑结构的地震反应分析   总被引：5，自引：0，他引：5  

李鸿晶  朱士云  Mehmet Celebi 《地震工程与工程振动》2003,23(6):31-36

选择取得强震观测资料的建筑结构为研究对象，采用有限元法建立结构的动力反应分析模型，利用SAP2000程序分析了结构的地震反应，并同实际记录到的结构地震反应进行了对比分析，讨论了结构模型参数估计和一些不确定因素对模型精度的影响。  相似文献   

The effects of water stress on yield performance of drip-irrigated pepper (<Emphasis Type="Italic">Capsicum annum</Emphasis> L. cv<Emphasis Type="Italic">. Capya</Emphasis> var. <Emphasis Type="Italic">Yalova yağlık</Emphasis> 28) in the Central Anatolian region of Turkey     

Muhittin Celebi 《Arabian Journal of Geosciences》2018,11(23):758

The aim of this study is to investigate the effects of conventional deficit irrigation strategy on yield components and water use efficiency in the red pepper. The field study was performed in Çumra, a town in the province of Konya in the years of 2012 and 2013. The irrigation treatments were applied as follows: (i) full irrigation regime (100% of water requirement for plant, I₁₀₀) and (ii) two conventional deficit irrigations regime at the rate of 80% (I₈₀) and 60% (I₆₀) of I₁₀₀ at 5-day intervals. The irrigation water was used based on soil water content measurement through the gravimetric method where evaporation was measured by a class A pan cup simultaneously. The maximum marketable yields were obtained in the treatment of I₁₀₀ with 22.0 and 24.0 t ha^?1 for the years of 2012 and 2013, respectively. The seasonal crop water requirement was calculated as 454, 591, and 726 mm for 2012 and as 498, 652, and 806 mm for 2013, respectively. The values of crop yield response factors (ky) at I₈₀ and I₆₀ were found as 1.03 and 1.37 in 2012 and 0.66 and 1.54 in 2013, respectively. The highest levels of water use efficiency (WUE) and irrigation water use efficiency (IWUE) were determined for the treatment of 20% deficit during the period of study. The complete irrigation levels (FC) were calculated through 0.87 times the pan A evaporation. The results reveal that full irrigation strategy is the best choice to obtain maximum yield or net return while 20% deficit irrigation is a viable solution for water poor environments.  相似文献   

Nonlinear modeling of liquid sloshing in a moving rectangular tank   总被引：2，自引：0，他引：2  

M. Serdar Celebi  Hakan Akyildiz 《Ocean Engineering》2002,29(12):834-1553

A nonlinear liquid sloshing inside a partially filled rectangular tank has been investigated. The fluid is assumed to be homogeneous, isotropic, viscous, Newtonian and exhibit only limited compressibility. The tank is forced to move harmonically along a vertical curve with rolling motion to simulate the actual tank excitation. The volume of fluid technique is used to track the free surface. The model solves the complete Navier–Stokes equations in primitive variables by use of the finite difference approximations. At each time step, a donor–acceptor method is used to transport the volume of fluid function and hence the locations of the free surface. In order to assess the accuracy of the method used, computations are verified through convergence tests and compared with the theoretical solutions and experimental results.  相似文献   

一幢钢筋混凝土建筑结构的强地震反应观测   总被引：3，自引：2，他引：3  

李鸿晶  Mehmet  Celebi 《地震工程与工程振动》2001,21(4):35-39

介绍了美国加州强震观测计划（CSMIP）中一幢建筑结构地震反应台阵的观测方案，描述了被观测结构的有关情况，给出了该台阵于1994年美国北岭地震中获得的结构地震反应的观测资料。  相似文献