空心砖保温夹心开洞墙体的抗震试验研究

本文通过6片不同拉接筋间距的空心砖复合夹心开洞墙及2片空心砖实体开洞墙的低周期反复荷载试验。研究其破坏形态、抗震性能及变形能力。试验结果表明：空心砖夹心空洞墙的抗剪承载力要低于空心砖实体开洞墙，拉接筋对墙体的内外叶墙的协调变形及整体稳定都起着较好的作用。     

Application of Tube-Packaged FBG Strain Sensor in Vibration Experiment of Submarine Pipeline Model

1 .IntroductionSubmarine pipelines have been worldwide utilizedinthe field of offshore oil/gas exploitation.Inmany cases ,the pipelinesinitiallyresting onthe seabed may become suspended due toseveral reasonssuch as installation on an uneven seabed or scou…     

Torsionally Coupled Response Control of Offshore Platform Structures Using Circular Tuned Liquid Column Dampers

In this paper, the control performance is investigated of Circular Tuned Liquid Column Dampers (CTLCD) over torsional response of offshore platform structures excited by ground motions. Based on the equation of motion for the CTLCD-structure system, the optimal control parameters of CTLCD are given through some derivations on the supposition that the ground motion is a stochastic process. The influence of systematic parameters on the equivalent damping ratio of the structures is analyzed with purely torsional vibration and translational-torsional coupled vibration, respectively, The results show that the Circular Tuned Liquid Column Damper (CTLCD) is an effective torsional response control device.     

Studies on structural vibration control with MR dampers using μGA

A new approach to reducing the seismic response of spatial structures with magneto-theological （MR） dampers is presented in this paper. The Genetic Algorithm with small populations （μGA） is used to optimize the control for the MR dampers to reduce structural vibration, which is difficult to achieve using classical optimal control. The advantages of μGA are the use of global properties and that fewer conditions are required to obtain the optimal function. Numerical results demonstrate the effectiveness of the proposed method in reducing the seismic response of structures.     

楼板谱研究述评

介绍了楼板谱方法的发展与研究现状。详细阐述了主附结构系统的相互作用、调谐、非经典阻尼、多点支撑等动力特性问题,分别介绍了传统楼板谱与新型楼板谱以及多维地震动下楼板谱的研究方法,给出了有待进一步研究的课题。     

A STUDY ON VIBRATION REDUCTION IN HIGH-RISE STRUCTURES BY MULTI-TLDs

本文研究高层建筑利用调液阻尼器（ＴＬＤ）减小地震反应的方法。首先探讨了激励频率比、调谐频率比对减震效果的影响。在此基础上建立了具有不同ＴＬＤ设置方式的高层建筑体系的学模型和运动方程，首次提出了利用多个ＴＬＤ减小高层建筑多个振型的方法。最后通过数值算例验证了本文方法的有效性。     

利用多个调液阻尼器减小高层建筑地震反应的研究

本文研究高层建筑利用财液阻尼器减小地震反应的方法，首先探讨了激励频率比，调谐频率比对减震效果的影响。在此基础上建立了具有不同ＴＬＤ设置方式的高层寻找体系的力学模型和运动方程首次提出了利用多个ＴＬＤ减小高层建筑多个振型的方法，最后通过数值算例验证了本文方法的有效性。     

小波分析在土木工程领域中的应用

简要介绍了一维小波分析的基本原理和分类，及其在土木工程领域的主要应用。重点论述了小波变换在结构损伤检测方面的应用。由小波分析的数据中提取人工神经网络的训练样本能够更好的反应结构缺损特征，故小波分析或以小波分析为基础的人工神经网络方法是结构损伤识别的一种很有前途的方法。     

土木工程结构安全性评估、健康监测及诊断述评

阐述了土木工程结构的安全性评估、健康监测及损伤诊断的必要性和迫切性，系统论述了结构健康监测和诊断的概念、理论和方法，重点讨论了传感器的优化布置、损伤识别等健康监测中的关键问题，介绍了光纤等新型传感器的应用情况，最后指出了值得进一步研究的问题。