共查询到19条相似文献,搜索用时 62 毫秒
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由于东莞台商大厦的动臂式塔吊因标准节连接螺栓被拉断造成了塔吊安全事故,而郑州会展宾馆工程采用了和其同一厂家同一型号的塔吊,为确保安全,需要对本工程该型号的塔吊进行标准节置换.介绍了如何利用核心筒另一台动臂式塔吊对该型号塔吊进行标准节置换的全套技术,为类似工程的塔吊标准节置换提供了借鉴. 相似文献
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介绍普通平臂塔吊在冷却塔工程施工中代替常用折臂塔吊使用,阐述塔吊的柔性附着(钢丝绳)连接技术和塔吊高空分段拆卸伸臂的技术。 相似文献
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高层和超高层建筑采有塔吊施工时,塔吊的正确选择关系到施工安全和经济效益。对选择买塔吊还是租塔吊需进行租金计算,经对比后确定,应重视塔吊基础的作法及安全操作规程,以保证安全生产。 相似文献
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塔吊危险性高,如何实时监测塔吊倾斜状态是很多建筑施工单位重点关注的技术改造内容。本设计在充分研究塔吊垂直度与其安全关系的基础上,提出基于无线通信技术的塔吊防倾覆智能监测研究,设计出一套具有实时、现场和远程监控塔吊安全状态的系统,以构建具有预报和预警功能的建筑用塔吊安全监测机制。测试结果表明,该系统能够实时高效监测塔吊倾斜度,塔顶检测仪和地面监控仪能够有效改善和提高塔吊施工的安全性。 相似文献
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近年来,我国塔吊行业发展迅猛。其主要表现为:塔吊产量逐年上升,目前全国塔吊总拥有量比80年代初期翻了一番;积极引进国外技术(包括购买许可证和从法国、联邦德国、意大利、丹麦等国家购买为数可观的自升塔吊),促进了国内塔吊的技术进步,并有效地缓解了曾紧张一时的塔吊供需矛盾;一些有关塔吊技术的国家标准和部颁标准先后发布并付诸执行;微机在塔吊设计 相似文献
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The importance of the utilization of cranes in construction operations has resulted in the development of structured methods for crane selection. Most of these methods are for crane model selection and require the user to stipulate the type of crane to be used for the construction operation under consideration. Availability of a structured method for crane type selection will greatly benefit the overall crane selection process. This paper describes a prototype integrated crane selection tool, called IntelliCranes, designed to assist in both crane type and crane model selection. The key feature of IntelliCranes is the systematic incorporation of subjective and qualitative criteria in crane type and model selection. 相似文献
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塔吊是高层建筑施工中最常用、最重要的大型垂直运输机械,塔吊的安全也是高层建筑施工中人们关注的重点之一。塔吊的正确选择关系到施工安全和经济效益,而塔吊基础的正确选择和施工更是关系到整个塔吊运行安全的的重中之重。文章通过对软弱塔基荷载实例的分析,介绍了塔吊基础选择要点。 相似文献
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对某工程中的23·4m跨度吊车梁的设计进行介绍,比较吊车桁架、焊接工字形吊车梁、焊接箱形吊车梁三种方案,最后从经济性和安全性的角度考虑,选择箱形吊车梁作为设计方案。 相似文献
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Abstract: The crane is the single most important equipment cost item required for erecting structural steel. Each time the crane moves to a new location, equipment time and labor time is lost. This research presents a computerized analysis method to minimize the number of moves required by a mobile crane to erect single story steel structures. The production rule system finds the optimum path for the crane and determines the steel erection sequence. Artificial intelligence techniques are employed to develop the production rule system. They system finds the optimum path for the crane and determines the steel erection sequence. The production rule system consists of three basic components. The first is a knowledge representation which describes the building and crane geometry. Second is the production rules for positioning the crane and sequencing the steel erection. These rules were structured from interviews with steel erectors and converted to logic based rules used in the program. Third is the control strategy which analyzes the various combinations of crane positions. The result is a microcomputer based Prolog program called PRECISE. This program finds the optimal crane positions and the structural members erected from each crane position. 相似文献
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从Miner累积损伤的定义出发,视累积损伤为随机过程,临界损伤为随机变量,考虑腐蚀情况下疲劳抗力的衰减,提出了在役钢结构吊车梁疲劳可靠度分析方法。对某在役钢结构吊车梁随时间变化的疲劳可靠性进行了评估,预测该钢结构吊车梁剩余疲劳寿命,为进一步维修决策提供依据。 相似文献
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郑州会展宾馆主楼高度高,结构复杂,采用两台大型塔吊进行安装。利用屋面吊拆除塔吊,并在施工前综合设计屋面吊的安装位置、型钢梁承载能力分析、各台塔吊的先后拆除顺序,最终确定塔吊安全拆除。重点介绍塔吊拆除的设计思路、安装屋面吊及拆除时的关键技术。 相似文献