土木工程毕业论文外文翻译下载

桥梁式集装箱起重机设计113 1．前言………………………………………………………………………32．主要设计内容及参数……………………………………43．主梁结构设计……………………………………………………54．小车机构设计……………………………………………………77．起吊机构设计…………………………………………………116．支架设计……………………………………………………………148．设计小结……………………………………………………………159．主要参考文献…………………………………………………1610.图纸文件设计前言起重机被喻为“巨人之臂”，是广泛用于国民经济各部门进行物质生产和装卸搬运的重要设备。起重机的设计制造，从一个侧面反映了国家的工业现代化水平。我国起重机制造业奠基于20世纪50年代。70年代以来，起重机的类型、规格、性能和技术水平获得很大的发展。近年来在物流和工业企业发展的带动下，起重机行业进入飞速发展时期。起重机主要分为桥梁式、悬臂式、塔式、龙门式、拉索式、液压伸缩臂式等形式。本设计以桥式双梁单小车集装箱起重机为例，介绍起重机的设计思路、设计内容以及设计方法。起重机设计主要根据客户要求，在符合国家标准及机械工业标准中对起重机的要求下进行设计。设计方案的选择主要通过与客户沟通取得一致意见后确定，设计内容主要包括在起重机的实际工作环境下确定起重机的最大额定载荷、非正常载荷（如冲击载荷，风力载荷、震动载荷等）、操纵形式、使用寿命、检修方式以及安全等级等；确定起重机主要零部件的选材以及机加工和材料处理的方法；确定起重机的工作级别；确定其主要受力梁的截面形式、截面大小以及梁的材料选择和加工方法。由于桥梁式起重机体积和质量都比较大，所以在设计过程中还应考虑起重机的运输方案和安装方法。一 主要设计内容及参数1、起重机首先要确定的是工作级别本设计的起重机用于集装箱生产制造或物流行业。起吊件为生产下线的集装箱，或物流行业待装货的集装箱，所以都是空箱。起吊重量为5T 根据起重机行业标准，不管是集装箱生产行业还是物流行业都是生产节奏比较快的，因此该起重机的工作级别定为A5级，起吊机构工作级别为M5。2、根据以上所规定级别设置设计内容及参数a.主梁结构 主梁涉及到的主要设计内容或参数主要有：主梁的截面形式、截面大小、所用材料、制作方法、主梁上平面的平面度、侧面的平面度和垂直度、主梁应该具有的上拱度，还有主梁上的轨道安装等等。b.支架结构支架需要设计的主要内容和参数包括：截面形式、截面大小、使用材料、制作方法、支腿的垂直度误差、支腿与地面的连接方式等等。c.小车机构小车机构要设计的主要内容和参数包括：小车架设计；起吊机构设计；小车行走机构设计。根据起吊重量设计小车架截面；根据所需要元件的安装位置设计小车架的结构；根据工作级别设计行走机构中电机的功率和类型；根据起吊高度确定卷筒的直径和长度；根据工作级别确定主电机的功率以及减速机的型号。确定其他一些元件的型号。应符合起重机行业标准中的相关内容；控制电路属于电气范畴在此不予讨论。 本文来自: 一流设计吧(www.16sheji8.cn) 详细出处参考：

building types and designA building is closely bound up with people，for it provides with the necessary space to work and live in .As classified by their use ,buildings are mainly of two types :industrial buildings and civil buildings .industrial buildings are used by various factories or industrial production while civil buildings are those that are used by people for dwelling ,employment ,education and other social activities .Industrial buildings are factory buildings that are available for processing and manufacturing of various kinds ,in such fields as the mining industry ,the metallurgical industry ,machine building ,the chemical industry and the textile industry . factory buildings can be classified into two types single-story ones and multi-story ones .the construction of industrial buildings is the same as that of civil buildings .however ,industrial and civil buildings differ in the materials used and in the way they are used .Civil buildings are divided into two broad categories: residential buildings and public buildings .residential buildings should suit family life .each flat should consist of at least three necessary rooms : a living room ,a kitchen and a toilet .public buildings can be used in politics ,cultural activities ,administration work and other services ,such as schools, office buildings, parks ,hospitals ,shops ,stations ,theatres ,gymnasiums ,hotels ,exhibition halls ,bath pools ,and so on .all of them have different functions ,which in turn require different design types as well. Housing is the living quarters for human beings .the basic function of housing is to provide shelter from the elements ,but people today require much more that of their housing .a family moving into a new neighborhood will to know if the available housing meets its standards of safety ,health ,and comfort .a family will also ask how near the housing is to grain shops ,food markets ,schools ,stores ,the library ,a movie theater ,and the community center .In the mid-1960’s a most important value in housing was sufficient space both inside and out .a majority of families preferred single-family homes on about half an acre of land ,which would provide space for spare-time activities .in highly industrialized countries ,many families preferred to live as far out as possible from the center of a metropolitan area ,even if the wage earners had to travel some distance to their work .quite a large number of families preferred country housing to suburban housing because their chief aim was to get far away from noise ,crowding ,and confusion .the accessibility of public transportation had ceased to be a decisive factor in housing because most workers drove their cars to work .people we’re chiefly interested in the arrangement and size of rooms and the number of bedrooms .Before any of the building can begin ,plans have to be drawn to show what the building will be like ,the exact place in which it is to go and how everything is to be done.An important point in building design is the layout of rooms ,which should provide the greatest possible convenience in relation to the purposes for which they are intended .in a dwelling house ,the layout may be considered under three categories : “day”, “night” ,and “services” .attention must be paid to the provision of easy communication between these areas .the “day “rooms generally include a dining-room ,sitting-room and kitchen ,but other rooms ,such as a study ,may be added ,and there may be a hall .the living-room ,which is generally the largest ,often serves as a dining-room ,too ,or the kitchen may have a dining alcove .the “night “rooms consist of the bedrooms .the “services “comprise the kitchen ,bathrooms ,larder ,and water-closets .the kitchen and larder connect the services with the day rooms .It is also essential to consider the question of outlook from the various rooms ,and those most in use should preferably face south as possible .it is ,however ,often very difficult to meet the optimum requirements ,both on account of the surroundings and the location of the roads .in resolving these complex problems ,it is also necessary to follow the local town-planning regulations which are concerned with public amenities ,density of population ,height of buildings ,proportion of green space to dwellings ,building lines ,the general appearance of new properties in relation to the neighbourhood ,and so on .There is little standardization in industrial buildings although such buildings still need to comply with local town-planning regulations .the modern trend is towards light ,airy factory buildings .generally of reinforced concrete or metal construction ,a factory can be given a “shed ”type ridge roof ,incorporating windows facing north so as to give evenly distributed natural lighting without sun-glare .翻译：建筑类型和设计建筑物与人们有着紧密的联系，他为人们提供必要的空间，用以工作和生活。根据适用类型不同，建筑物可以分为两类：工业建筑和民用建筑。工业建筑包括各个工厂或工业生产所使用建筑，民用建筑是指那些人们用以居住，就业，教育和其他社会活动的建筑场所。工业建筑的厂房可用于采矿业，冶金工业，机械制造，化学工业和纺织工业等各类领域的加工和制造。厂房可分为两种类型：单层的和多层的。工业建筑也属于建筑的一种。但是，工业建筑与民用建筑所用的材料和建筑方式不同。民用建筑按使用可分为两大类：住宅建筑和公共建筑。住宅建筑要适应家庭生活。每个单位应包括至少三个必要客房：起居室，厨房和厕所。公共建筑可在政治，文化活动，管理工作和其他服务，如学校，写字楼，公园，医院，商店，车站，剧院，体育馆，宾馆，展览馆，洗浴池，等等。他们都有着不同的职能，这反过来又需要不同的设计类型。房屋是用以住人的. 其基本功能是提供住房的内容，但今天人们需要更多的住房内容。一个家庭在进入一个新的社区后将知道，现有住房不仅要符合其安全，健康和舒适等标准。还要考虑其附近是否有相应的配套设施，如食品市场，学校，商店，图书馆，电影院，以及社区中心等。在60年代中期住房最重要的价值是足够大的空间和方便的出入交通。大多数家庭会首选约半英亩面积土地的家庭住宅，这样将提供足够的空间的用以业余活动。在高度工业化的国家，许多家庭的首选是那种尽可能远离市中心商业圈的住房，即使距离上班地点不得不有一段距离。相当多的家庭首选是郊区的住房，因为他们的主要目的是要远离噪音，拥挤和混乱。拥有方便的公共交通使得距离不再是一个决定性因素，因为大多数人都是开着自己的汽车去上班了。人们现在主要感兴趣的是户型，房间的大小和卧室的数目。在工程项目开始之前，要做好建筑设计和施工流程,让人提前知道该建筑建成后是什么样子以及下一步应该做什么。在建筑设计中要特别重视房间的布局，其目的是提供最大的便利与可能的用途。在一个住宅建筑设计中，布局可考虑以下三个方面： “白天” ， “夜晚”和“服务”。必须注意这些空间区域之间的连通交流。 “白天”房一般包括餐厅，起居室和厨房，但其他房间可能会增加，如书房，并有可能成为一个大厅。起居室通常是最大的，往往是一个餐厅，也或可能有厨房、凹室等。 “夜间”房间包括卧室、客房。“服务”用房间包括厨房，浴室，储藏室 ，和厕所等。厨房和储藏室需设置在一起，以方便其房间功能的使用。此外，还必须考虑各种客房的朝向问题，当然最好尽可能的将那些经常使用的房间朝南设置。然而，在考虑到周围的环境和地点、道路等多方面因素，往往很难达到最佳要求。在解决这些复杂的问题，还必须按照当地城市规划条例所涉及的对公共设施，人口密度，建筑物高度，绿化面积，建筑红线等的要求，还要考虑到有相邻建筑的情况，等等。尽管工业建筑需要符合当地城市规划条例但很少有标准化的工业楼宇。现代厂房建筑的趋势是轻质、通风。一般的钢筋混凝土结构或钢结构的工厂，可以得到一个“跌”型脊屋顶，把窗户开向北以便使分布均匀的自然采光不会直射进来造成刺眼。

土木工程的英文是Civil Engineering ,直译是民用工程，它是建造各种工程的统称。它既指建设的对象，即建造在地上，地下，水中的工程设施，也指应用的材料设备和进行的勘测，设计施工，保养，维修等专业技术。土木工程随着人类社会的进步而发展，至今已经演变成为大型综合性的学科，它已经出许多分支，如：建筑工程，铁路工程，道路工程，桥梁工程，特种工程结构，给水排水工程，港口工程，水利工程，环境工程等学科。土木工程共有六个专业：建筑学，城市规划，土木工程，建筑环境与设备工程，给水排水工程和道路桥梁工程。土木工程作为一个重要的基础学科，有其重要的属性：综合性，社会性，实践性，统一性。土木工程为国民经济的发展和人民生活的改善提供了重要的物质技术基础，对众多产业的振兴发挥了促进作用，工程建设是形成固定资产的基本生产过程，因此，建筑业和房地产成为许多国家和地区的经济支柱之一。.古代的土木工程有很长的时间跨度，大致从公元前500年新石器时代出现原始的土木工程活动到16世纪末意大利的文艺复兴，导致土木工程走上迅速发展的道路为止，前后经历了两千多年。在这段时间内，由于科学理论发展及其缓慢，土木工程也没有突破习惯的发展。从17世纪中页开始到20 世纪40年代第二次世界大战结束为止的300年间，国外的建筑取得了长足的进步。土木工程进入了定量分析阶段。一些理论的发展，新材料的出现，新工具的发明，都使土木工程科学日渐完善和成熟。到了近代，二战结束之后，许多国家经济起飞，现代科学日益进步，从而为进一步发展提供了强大的动力和物质基础。人们生活水平的不断提高，必然要求越来越舒适的居住环境，在这种情况下，建筑的发展直接推动了土木工程的发展。总的来说土木工程是一门古老的学科，它已经取得了巨大的成就，未来的土木工程将在人们的生活中占据更重要的地位。地球环境的日益恶化，人口的不断增加，人们为了争取生存，为了争取更舒适的生存环境，必将更加重视土木工程。在不久的将来，一些重大项目将会陆续兴建，插入云霄的摩天大楼，横跨大样的桥梁，更加方便的交通将不是梦想。科技的发展，以及地球不断恶化的环境必将促使土木工程向太空和海洋发展，为人类提供更广阔的生存空间。近年来，工程材料主要是钢筋，混凝土，木材和砖材，在未来，传统材料将得到改观，一些全新的更加适合建筑的材料将问世，尤其是化学合成材料将推动建筑走向更高点。同时，设计方法的精确化，设计工作的自动化，信息和智能话技术的全面引入，将会是人们有一个更加舒适的居住环境。一句话，理论的发展，新材料的出现，计算机的应用，高新技术的引入等都将使土木工程有一个新的飞跃.English is the Civil Engineering Civil Engineering, civil engineering is literally, it is the construction of the project collectively. It means building objects that the construction on the ground, underground, water works facilities, equipment and materials to use in surveying, design construction, maintenance, repair and other professional skills. Civil Engineering with the progress of the human society, has been transformed into large integrated disciplines, it has a number of branches, such as : construction, rail projects, road projects, bridge projects, special project structure, water drainage works, the port project, water, environmental engineering disciplines. A total of six professional Civil Engineering : architecture, urban planning, civil engineering, construction and environmental engineering equipment, water drainage works and road bridge project.Civil Engineering as an important foundation subjects, its important attribute : an integrated, social, practicality, uniformity. Civil Engineering for the development of the national economy and improve the living standards of the people provided important material and technological foundation for the revitalization of many industries played a catalytic role in the construction of fixed assets is a basic production process, the construction and real estate in many countries and regions become a pillar of the economyAncient Civil Engineering has a long time span, roughly 500 years before Christ from the original date in civil engineering activities to the 16 century Italian Renaissance, resulting in the rapid development of the Civil Engineering on the road today, and has experienced more than 2,000 years. During this period, due to the development of scientific theories and slow, there is no breakthrough in civil engineering practices.Century from 17 pages to 40 years in the 20th century end of the Second World War 300 years, foreign construction made great strides. Civil Engineering has entered a phase of quantitative analysis. Some theoretical development, the emergence of new materials, new tools of invention, the Civil Engineering Science is perfection and maturity. In modern times, after the end of World War II, many countries economic takeoff, the increasing advances of modern science, so as to provide a powerful impetus to further development and material basis. People's living conditions continue to improve, more and more comfortable living environment for the inevitable in the circumstances, the construction of development directly to the Civil Engineering development.

土木工程的key哀，速度，