栈桥结构分析

以某水泥生产线钢结构栈桥为背景，利用通用有限元软件ANSYS对该栈桥进行了各种设计载荷下的动态和静力分析，计算结果表明该栈桥各杆件均满足规范要求，此结构稳定可靠，能够满足工程实际要求。     

水电工程直立岩壁钢栈桥基础优化设计

水电项目施工中,经常遇到边坡岩层不够稳定等不良地质情况,为防止因边坡不稳定造成的危害,工程中经常搭建大量排架,并架设钢栈桥作为钢管排架的基础,因此开展钢栈桥基础稳定性研究具有重要理论意义及工程价值。本文以某厂房边坡危岩体治理工程为背景,分析不同因素对钢栈桥基础力学性能的影响,通过理论分析和有限元数值模拟相结合的方法,对钢栈桥结构型式和截面尺寸进行优化设计,给出工程常用跨度和荷载下结构的截面选择。     

复杂海域环境下钢栈桥的设计与验算

沿海路改桥项目施工过程中常规的施工便道及施工平台无法满足桥位处复杂的海域环境要求,而复杂海域环境下钢栈桥结构常年经受大风及波浪冲击作用,结构受力复杂,需要进行特殊设计与验算。本文在已有研究成果的基础上设计了复杂海域环境下钢栈桥搭建方案,考虑钢栈桥在正常使用和台风期停工两种施工情况,采用Midas/Civil建立钢栈桥有限元分析模型,进行了多种典型工况下主要构件应力、钢管桩桩底反力及钢管桩嵌固点的验算。验算结果表明设计的钢栈桥满足项目施工要求,作为临时通道能够有效的解决桥梁的施工作业问题,对复杂海域环境下钢栈桥的设计与验算具有借鉴意义。     

深水无覆盖层地区钢栈桥技术研究

当前形势下,山区及高原地区基建项目的日益增多,为适应高山、深水以及地形起伏较大等复杂地形中临时栈桥施工,本文从钢栈桥的设计与施工两个角度分别进行分析研究,并通过实例进行了详细的阐述,分析总结了一套适应复杂地形地区栈桥设计及施工技术,指导后期类似项目的施工。     

浅海钢管桩基础防腐技术

青岛海湾大桥栈桥工程以钢管桩为基础,由于栈桥使用期限较长,钢管桩在海水中的防腐措施显得尤为重要。在本文中,为防止钢管桩在浅海中发生严重的腐蚀情况,对栈桥钢管桩基础采用了牺牲阳极法、涂层保护法等联合保护法进行防腐处理,保证栈桥的使用寿命及安全运行。     

装配式钢栈桥及钢平台施工关键技术

钢栈桥及钢平台在桥梁、码头等水中构筑物的施工领域运用非常广泛,本文以中交二航局宁高项目6.5公里钢栈桥及215座钢平台施工为背景,将原有设计方案优化成装配式钢栈桥,总结了装配式钢栈桥及钢平台施工经验,为类似工程提供参考。     

钢栈桥兼做钢梁运输通道的应用研究

本文主要介绍了在某项目公铁两用长江大桥施工中,针对桥梁施工的特点及周边运输条件,通过将钢栈桥兼做钢梁运输通道,从而很好解决了在长江航道范围内大吨位钢梁运输的难题.该栈桥不但可以满足主体工程下部施工,而且也可兼做钢梁运输通道,提高了栈桥的使用效率,大大降低了施工措施费用.并且由于钢栈桥承载吨位较大,钢梁运输更加安全,避免...     

仰拱顶模及栈桥在隧道仰拱施工中的应用

隧道仰拱混凝土在浇筑施工过程中常常需要靠顶模才能使混凝土的形状符合设计要求.同时,为保证仰拱施工期间洞内正常通车,需要在仰拱上方架设仰拱栈桥.结合武广客运专线大瑶山隧道的实际施工情况,设计了一种隧道仰拱混凝土浇筑专用顶模和栈桥.重点对该顶模和栈桥的结构和使用方法进行分析和探讨,以供同类工程借鉴和参考.     

某特大桥钢栈桥设计和架设施工要点

在大多数跨江河、过湖泊的桥梁工程中,都要架设栈桥以进行水中桥梁构造部位的施工。如今更多采用钢栈桥,钢栈桥的设计和架设施工对于钢栈桥造价、安全使用关系非常重大。文章以某特大桥临时钢栈桥的设计和和架设施工为例,对临时钢栈桥的设计和和架设施工要点进行论述、研究。     

深水、裸露基岩等困难条件下重载施工栈桥设计及施工

本文结合水利口大桥施工实践,介绍重载施工栈桥的设计和施工.因栈桥处为深水,且基岩裸露,钢管桩支墩难以入岩锚固.本项目通过对钢管桩入岩方案进行研究及验算,创新了一种在裸露基层上套桩接长的技术方案,解决了裸露基岩上修建水中栈桥的难题,可供类似地质条件下栈桥的修建进行借鉴.     

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.