跃层剪力墙结构的抗震性能分析

我国《高层建筑混凝土结构技术规程》设计规范规定,对于能够采取相应措施保证平面内整体刚性的建筑结构,可以采用刚性楼板假定计算结构的内力和位移,且计算精度能满足设计要求。但跃层结构中,由于其楼面缺乏整体性,使结构受力更复杂。本文根据跃层中开洞层楼板的特点,定义不同的结构模型,通过有限元计算不同的模型,对比分析各模型在地震下的响应,以保证结构设计时的合理性。结果表明,奇数层楼板开洞面积较大,在地震作用下下,按弹性楼板假定与按刚性楼板假定对结构的整体性能指标产生了一定的影响。     

预制装配式钢筋混凝土楼板的构造

预制装配式钢筋混凝土楼板,简称"预制楼板"或"预制板",是在工厂或现场预制的各类混凝土板铺设的楼板,目前装配式钢筋混凝土楼板应用十分广泛。它具有节约钢材和混凝土、施工速度快、节省模板、楼层刚度大等优点,并便于机械化操作,减少了现场作业,为建筑工业化、工厂化提供了条件。     

MBEC900WD运梁车中的悬挂系统

介绍了由武桥重工桥梁设备研究所研发的MBEC900WD运梁车的主要结构及悬挂系统的特点和分组方法,并且用有限元分析了悬挂的受力情况,做了结构优化。     

高层框架轴线快速引点放样施工的新工艺

多层及高建筑框架结构轴线放样，在当前各施工企业一般采用普通经纬仪，把各层轴线从下至上投测到各层楼板边缘或柱端，然后根据由下层没洲上来的轴线点，在楼板上按设计尺寸分别弹线定位。随着社会经济发展和进步，高层和超高层建筑的大量出现，经纬仪观测仰角加大，测点距建筑物也越远，且易受阴雨天、雾天及强光、高温天气的影响，同时施洲一次需花很长时间，既费时又易于出现误差，尤其经济发达地区和城市，建筑物多为密集型，施工场地狭窄，观测角度受到限制，给施洲带来困难．除用配有90．折角镜头的经纬议外，普通经纬仪是不能满足狭…     

隔声浮筑楼面施工技术

目前国内民用建筑楼板大多数按混凝土楼板进行设计,它具有结构薄、自重轻等优点,但由于混凝土楼板刚性强,减振效果差,隔绝撞击声性能差,楼板隔声达不到住宅建筑规范要求,故楼板隔声越来越受到社会的关注。通过采用隔声浮筑楼面施工技术,能为业主提供合格的防噪和降噪功能的现代化建筑,从而满足了业主对隔声的要求。     

现浇混凝土结构楼板裂缝监控要点

随着现代建筑工程中砼强度等级越来越高,施工进度越来越快,现浇砼楼板出现的裂缝也越来越多,无论高层钢筋砼框架结架、剪力墙还是砖混结构都出现了不同程度、位置和形状各异的裂缝,通过对现浇砼楼板出现的裂缝产生的原因,阐述了其防治措施,使之最终达到规范要求。     

弹性支座对悬挂运输设备轨道设计的影响

悬挂在楼层梁下的运输设备轨道,由于楼层梁在荷载作用下会产生挠度变形,造成悬挂轨道的支承点不再为固定铰支点,因而对轨道的变形及承载能力产生影响。文章结合某一核电常规岛厂房中悬挂运输设备轨道设计实例,采用楼层梁与轨道结构整体计算模型,对影响轨道支承点刚度的吊杆位置和楼面荷载进行分析,提出轨道吊杆的优化布置方式和设计建议,可供类似工程参考。     

节段预制箱梁悬挂拼装施工测量控制方法

节段预制箱梁施工目前在国内应用越来越广泛,施工工艺日渐成熟,本文对短线匹配法节段预制箱梁悬挂拼装测量方法进行了介绍,重点说明了首节段箱梁定位测量方法。     

施工中高层框剪结构住宅楼板开裂的预防和处理

进入21世纪以来,人们生活水平不断提高,现代社会对建筑施工项目整体质量要求越来越高。随着高层建筑物数量的增加,建筑物中高层框剪结构住宅楼板施工面临着更大的挑战。要想满足现代社会对建筑整体质量的实际要求,施工企业必须结合实际建设状况,不断强化中高层框剪结构住宅楼板施工,为提升建筑物的整体质量提供技术保障。但是,在实际施工建设过程中,建筑物中高层框剪结构住宅楼板施工受诸多因素的影响仍存在较多问题,如楼板开裂、脱落以及老化等。中高层框架结构一旦出现质量问题,建筑物整体质量将受到严重削弱。因此,建筑施工企业必须采用新技术、新工艺和新材料有效预防和处理中高层框剪结构楼板开裂问题。     

楼板对RC框架抗连续性倒塌性能分析

随着经济的发展,由突发事件造成的连续性倒塌事故越来越多,经过很长一段时间的研究,国外学者已取得了突破性的进展。然而为了计算模型的简化,很多人在研究过程中往往忽略了楼板对抗连续性倒塌的影响。本文利用非线性静力分析法,基于拆除构件法,对一六层规则的框架结构进行分析,通过研究结构的位移及内力,进一步探讨楼板对结构抗连续性倒塌的有利影响。     

Development in Information and Communications Technology (ICT) Statistics at the Australian Bureau of Statistics

This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.     

Value at Risk in the Suburbs: Eminent Domain and the Geographical Politics of the US Foreclosure Crisis

Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.     

Towards a Theory of Serendipity: A Systematic Review and Conceptualization

Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.     

Accountability of NGOs in Bangladesh A critical overview

NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.     

Towards an Asian model of human resource management? A comparative analysis of China,Japan and South Korea

There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.     

The Creation of the Office for National Statistics

A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.     

What helps? Women engineers' accounts of staying on

We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.     

论现代物流企业的发展观

物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。     

浅谈大体积混凝土裂缝的控制

大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。     

Supply Chain Strategies in the UK Fashion Industry—The Rhetoric of Partnership and Realities of Power

This paper focuses on the fashion industry, one characterised by issues such as dramatic shifts in the scale and power of major retail buyers in the market, the advent of retailer own brands, and the nature of sourcing and supply chain decisions, issues that are increasingly global in nature. The aim of this research is to explore the nature of relationships between UK high street multiple fashion retailers and their contracted suppliers, many of whom are entrepreneurial firms by most definitions of the term. Four core themes emerge from the literature and provide a framework for the research, namely, power, process, partnership, and people. The research approach was qualitative, and conducted over a period of twelve months. The paper ends with an agenda for future research.