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巨型框架是适应高层建筑发展而出现的一种新型结构体系,由主次两级结构组成,是未来高层及超高层建筑结构体系发展和应用的主要方向之一。目前,国内的高层建筑巨型框架结构设计软件在进行竖向荷载作用效应分析时,大部分都是采用一次加载的方式,没有考虑施工过程的影响,将各层的竖向荷载一次施加到全结构的计算模型上去,将会造成结构的竖向位移偏大和构件内力的失真。 相似文献
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在众多建筑结构类型中,生土建筑结构是我国出现较早的且较为成熟和完备的施工技术及重要手段之一。生土建筑结构具备自然依托性好、取材便捷、施工适应性强等特点,在以往的建筑施工中得到广泛应用。为了深入分析国内生土建筑行业的发展特点,阐述生土建筑在各项建筑性能方面的优势和特点,本文以福建省生土建筑现状为研究对象,选取了福建省农村现存生土结构进行针对性研究,就生土建筑的施工材料、施工技术、结构体系及施工工艺流程进行系统分析,系统总结了生土结构的类型、基础结构、主要承载体系、屋盖结构等。在此基础上,分析了现存生土结构的安全性及耐久性问题,并针对性提出了加固技术方案,以期延长既有生土建筑结构的安全服役时限。 相似文献
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随着社会向环保、节能方向的发展,CL-建筑体系是在建筑领域内应运而生的一种新型的建筑结构体系,其施工工艺发展还相对很不成熟,为了推广这一体系的发展与应用,通过实际工程的施工对这一结构体系的特点和施工工艺进行了介绍,并对施工中的难点和重点进行了总结,对这一工艺的推广和应用起到了一定的促进作用。 相似文献
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天津建工集团应对我国住宅钢结构的发展需求,研发了钢-混凝土组合结构住宅建筑体系,该体系是建设部2002年科技进步攻关项目之一,针对该体系,天津建工集团展开了一系列的研究和试验工作,本主要介绍该体系的基本组成、主要特点、试验研究、主要创新点和工程实践的情况。 相似文献
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给出了现代预应力混凝土结构体系的意义和分类,阐述了该结构体系所具有的特点,并结合厦门,青岛、沈阳、柳州和深圳预应力工程实例,描述了现代预应力结构体系施工过程和施工工艺的异同,来论证该结构体系的发展状况。 相似文献
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在建筑工程中,目前采用最广泛的建筑材料是钢筋混凝土。特别是在高层建筑中,大多是采用框架体系、框剪体系、框简体系和剪力墙体系。结构选型样式多变,施工高度高,结构刚度大,混凝土用量大。因此,混凝土是施工中最容易出现质量问题的部分。 相似文献
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轻钢结构体系在设计方面存在的若干问题黄君方黄国平近年来,在我国各地的经济技术开发区中,出现了很多轻钢结构建筑,其中用得较多的是轻型门式刚架结构。由于其形式简洁,施工周期短,因而倍受企业,尤其是外资企业的青睐。目前,轻钢结构体系在设计方面存在的问题大部... 相似文献
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Graham M. Winch 《Construction Management & Economics》2013,31(8):799-808
There has been considerable development in a process approach in construction management research in recent years. However, such work begs the question of how those processes are governed. Processes, be they flows of information or materials, need to be channelled in the desired direction as they are handed from team to team. This paper aims to present a conceptual framework for understanding the governance of construction project processes, drawing on transaction cost economics. Earlier attempts to apply this theoretical framework in construction management research have been partial, in that they have focused on only one type of transaction, typically that between client and principal contractor. This paper aims to be comprehensive in covering all the different transactions throughout the project lifecycle within one conceptual framework, and thereby it is hoped that more incisive empirical research can be developed and executed. 相似文献
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Hugh Allen Wilson 《Construction Management & Economics》2013,31(4):303-319
This research paper examines the relationship between organizational theory and accident causation/prevention theory as applied in practice to the construction industry. Part of the research work consisted of an information survey of groups of various categories of workers, managers and owners to establish their perceptions of accident causation. The findings indicate that the emphasis of current accident prevention measures in force is more suited to mechanistic organizations than to organic types of which the construction industry is one. The conclusions reached are that the emphasis must be concentrated more on education and training and the spread of information on the hazards of the working environment and their avoidance. 相似文献
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Despite the rapid growth of corporate volunteering in construction, there has been very little research in this area, particularly from a recipient’s perspective. To address this gap in knowledge, data were collected using surveys, reflective diaries, workbooks and a progress web, from 103 school pupils participating in one of the UK’s largest schools-based construction industry corporate volunteering programmes. The results show that corporate volunteering programmes which partner construction industry professionals with school students in a work-related activity-based learning environment can have a significant impact on student construction industry knowledge, perceptions, career choices, aspirations and employability skills. This is particularly the case for female students and for students whose learning styles do not align with traditional classroom-based pedagogies. It is recommended that more research is needed to classify and understand the different types of volunteering programmes that operate in the construction sector across multiple cohort groups, the factors that determine success and failure and the overall impact on the students and the wider community in the long term as well as the short term. There is also a need for more research into what it means for the companies involved and for the staff who volunteer. 相似文献
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Aaron Maano Anvuur Mohan Kumaraswamy Richard Fellows 《Construction Management & Economics》2013,31(9):719-737
Achieving and sustaining the cooperation of individuals with their temporary multi-organization (TMO) workgroups is, arguably, one of the most enduring challenges facing the construction sector. A mediational model connecting pride and self-respect to each of four dimensions of cooperative behaviour—in-role, compliance, extra-role, and deference—is tested in a survey sample of 140 construction professionals in Hong Kong. Bootstrap tests of the indirect effect of pride on cooperative behaviour suggest that self-respect fully mediates the influence of pride on in-role behaviour and compliance behaviour, and partially mediates the influence of pride on extra-role behaviour. The results also suggest that pride has no effect on deference behaviour. While needing corroboration by future research, the findings suggest that viable strategies designed to foster pride and self-respect could engender and sustain cooperation in construction TMO workgroups, and support ongoing efforts to reform construction. The bootstrapping procedures for testing intervening variable models are elaborated in the hope that this will encourage more process analysis research in construction. 相似文献
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施工张拉控制是索穹顶结构的关键技术之一,但是现有文献描述的施工方法往往过于复杂。为了促进索穹顶结构在实际工程中的成功应用,简化其施工过程非常必要。基于机构分析原理,本文以一直径为5m的葵花型索穹顶结构模型为研究对象,考察了索穹顶结构的三种施工张拉方法:张拉最外圈斜索成形法、张拉最外圈脊索成形法及张拉最外圈环索成形法。文中对上述三种施工方法进行了详细的试验研究,并将其与理论计算结果进行了对比分析,发现试验结果和理论分析吻合较好,证明了上述三种施工张拉方法是可行的。本文的试验研究有助于对该类结构的进一步研究和工程应用。 相似文献
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预制混凝土框架结构是一种工业化的建筑生产方式,以其施工速度快、经济效益和环境效益好等优点越来越受到业主和设计人员的关注。本文通过对国内外有关预制混凝土框架结构的研究发展现状进行综述,介绍几种常见的预制混凝土框架节点连接方式。 相似文献
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工程建设是人类重要的实践活动之一,建筑类工科院校承担着输送合格建筑工程师的重责大任。随着工程对自然的干预和破坏力越来越大、后果越来越危险,工程师需要发展一种新的责任意识,即环境伦理责任。文章阐述并揭示了目前建筑业界环境伦理学的现状和成因,对今后的环境伦理学学科建设提出了研究思路和实施策略,以期引起工程师对建筑道德底线的深入思考。 相似文献