【作者】 常全军；

【导师】 包立新；

【作者基本信息】 重庆交通大学 ， 桥梁与隧道工程， 2010， 硕士

【摘要】 无支架缆索吊装系统是一种以悬索通过塔架顶部锚固于锚碇之间、利用载重跑车在其上往返移动进行工作、兼有垂直运输和水平运输的特种设备。它适用于高差较大的垂直吊装和架空纵向运输,吊运量从几吨至几十吨范围之间变化,纵向运距从几十米至几百米。与其它起重设备相比,它具有跨度大、速度快、效率高、总体结构简单、造价低廉、施工周期短等突出优点,并且不受气候和地形条件的限制。因此,从拱桥的无支架施工逐渐发展到桥梁的悬臂拼装、大跨度悬索桥主索以及加劲梁的吊装,缆索吊装系统都能提供优质安全的服务。所以,在桥梁施工当中越来越受到施工单位的青睐。然而随着吊装系统跨径、吊装重量、矢跨比的不断加大,利用传统抛物线理论进行设计时,不但计算结果误差较大,而且计算非常复杂、繁琐、周期较长,同时也不利于充分发挥设备能力。本文在多段悬链线理论的基础上,对塔脚固结式和塔脚铰接式吊装系统悬索无应力长度、不同工况下悬索索力、塔架位移量以及安装时悬索垂度进行了分析。同时为了避免繁琐、复杂的迭代计算,提高设计的计算精度与效率,用Visual Basic语言编写了悬索吊装系统的设计程序。使缆索吊装系统设计更加快捷、高效、合理。更多还原

【Abstract】 Stentless cable crane system is the special equipment which is a kind of cable fixed between anchorage by anchor at the top of tower,used the car of load to move there and back, and both vertical and horizontal transport. It was applicable for vertical hoisting and aerical vertical transport,lifting capacity changed range from a few tons to dozens of tons,the vertical transport distance from the dozens of meter to hundreds of meter. Compared with other lifting equipment, it has sevsral advantages of a large span, fast speed, high efficiency, simple structure, low cost, short period of construction , and no be restrained climatic and topographic conditions. Therefore, these systems can provide qualitical and securitical services that developed cantilever assembly of bridge from stentless construction of the arch bridge, the main cable of lardge-span suspension bridge and hoisting of stiffening girder, hoisting system of a cable. So the more and more be concern in the bridge construction.With increasing constantly span、weight、rise-span ratio of hoisting system, when it was designing to use traditional parabolic theory, not only calculational error is greater but also calculation is very complex, cumbersome, a longer period , and the same to be not conducive to full play capacity of equipment. The paper was based on Multi-segment catenary theory, and being seperately analysised to unstressed longness of cable hoisting system in consolidatal type and articulated of tower foot、force of suspended cable under varied condition、displacement of tower and verticality of suspension cable. The same to avoid trivial and complex iterative computation, improve computational accuracy and efficiency in the design, write design procedure of hoisting system of suspension cable with Visual Basic language, make the hoisting system of cable become faster、more efficient and reasonable.更多还原