Capacity Design of Coupled RC Walls

Capacity design aims to ensure controlled ductile response of structures when subjected to earthquakes. This article investigates the performance of existing capacity design equations for reinforced concrete coupled walls and then proposes a new simplified capacity design method based on state-of-the-art knowledge. The new method is verified through a case study in which a set of 15 coupled walls are subject to nonlinear time-history analyses. The article includes examination of the maximum shear force in individual walls in relation to the total maximum shear force in the coupled wall system, and subsequently provides recommendations for design.     

Reduction Factors for Seismic Design Spectra for Structures with Viscous Energy Dampers

A simple mathematical expression is proposed to estimate spectra reduction damping factors for seismic design of systems with viscous dampers. The expression is obtained from the ratios between ordinates of uniform hazard spectra associated with two different return intervals (50 and 125 years), corresponding to sites with different types of soil within the Valley of Mexico. The expression proposed depends on the dominant period of the soil, and on both the vibration period and damping ratio of the structural system. Values of the damping factors proposed here are comparable to those recommended by different authors and seismic design building codes.     

Effects of Different Record Selection Methods on the Transverse Seismic Response of a Bridge in South Western British Columbia

The seismic response of a continuous 4-span bridge designed according to the current Canadian seismic provisions is investigated using Incremental Dynamic Analysis (IDA). Different earthquake types, including shallow crustal events, interface Cascadia subduction, and deep inslab subduction are considered. The median collapse capacities calculated using different record selection methods including Conditional Mean Spectrum (CMS)-based, Uniform Hazard Spectrum (UHS)-based, and epsilon-based methods are compared. The use of the epsilon-based method generally resulted in the highest collapse capacity predictions, but the CMS-based method was less sensitive to the number of records considered in the IDA.     

GIS技术在萨拉乌苏考古遗址公园规划设计中的应用

传统规划设计工作的技术平台多以计算机辅助设计(CAD)为主,本工作以内蒙古自治区鄂尔多斯萨拉乌苏考古遗址公园规划为例,将Arc GIS Desktop作为技术平台应用到公园的规划设计工作中。首先,通过对规划区的实地踏勘,采集相关数据和资料,进行规划区数据库建设;其次,在数据库建设的基础上,通过GIS技术构建与现实环境对应的虚拟地理信息空间,实现规划区景观的三维可视化;最后,利用三维景观模型对现实地理环境进行模拟、分析及虚拟场景飞行。不同于传统CAD的二维工作平台,本工作借助GIS对空间数据和属性数据的强大处理功能及其三维景观可视化模块,为实现内蒙古鄂尔多斯萨拉乌苏考古遗址公园的科学规划提供辅助。     

后现代主义园林设计语言的符号学研究

根据皮尔斯符号三分法和园林分类法,后现代主义园林的设计语言具有丰富的历史性、地域文化、大众文化图象符号和惯用性、表现性、叙事性、色彩象征符号。后现代主义园林不但强调历史文化、地域文化、大众文化的表达,还重视历史文脉的保护恢复。后现代主义园林的设计语言大部分都是从自己的本土文化中吸取的,形成了可理解性,可交流性、可对话性以及意义的可生成性的人性园林,努力恢复被现代主义园林割断的人文尺度。     

东汉铜镜和画像石的图像比较

东汉时期的铜镜和画像石是两种不同质地、不同用途,分别处在阴阳两间的文物资料,然而,两者却有着相同的图案装饰,其创作设计的出发点都是为人生服务的。     

Research design and methods of data collection and analysis: researching students' conceptions in a multiple‐method case study

Three techniques were used in a multiple‐method case study to explore students' conceptions of geography within a qualitative framework, employing aspects of phenomenology, ethnography and grounded theory. The context of the research is briefly outlined, and then the methodological framework and nature of the data yielded are discussed in more detail. Aspects of analytical procedures are considered as are strengths and weaknesses of the research design, with an emphasis on triangulation and arriving at valid and reliable interpretations relating to the complex area of students' conceptions. A summative checklist relating to multiple‐method design in similar contexts is provided.     

服装陈列形态设计的创新研究

服装陈列伴随服装产业的发展而不断向前,商家在服装销售的终端环节上越来越重视服装陈列技术,陈列水平不断提高。本文从服装陈列形态设计角度着手,深入研究服装陈列形态设计的表现方法以及创新途径,结合市场流行趋势,通过实例论证服装陈列形态设计的发展方向,通过形态设计的创新研究,力求给服装陈列行业提供新思维和新思想。     

文物基础数据库建设研究与探讨

从文物特性、文物数据特征、文物数据库管理与应用要求等逐层递进分析,阐述了文物数据的特点和文物数据库设计的理念,进而概括文物数据库技术设计的内涵,结合信息化发展规划和信息技术特点,力图探讨文物博物馆领域数据库建设技术上的思路、方法和内容。