網路規劃應用於多塔吊計劃之最佳化

• Main Authors: Yueh Feng Ho, 何岳峰
• Other Authors: Machine Hsie
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/52638871908137589324

碩士 === 國立中興大學 === 土木工程學系 === 90 === In high-rise building construction, the operation of tower crane has been the critical activity, and quite often causes schedule delay. The tower crane planning involves a large solution space among which it is difficult to search for an optimal solution. This study thoroughly reviewed the previous researches which could be categorized into three groups including 1) exhausted search, 2) graphical judgment, and 3) genetic algorithm. However the previous researches have drawbacks. This research proposes a new approach called Tower-crane Optimization Model (TOM) to assist the planning of tower crane. The TOM decides the optimal location to install tower crane(s), and calculates the amount of materials the demand spots should be fed by the supply spots. The TOM searches the feasible minimal time of operation, which is usually called fitness value, to achieve the optimal design of tower crane planning. The Network Programming Algorithm is adopted. The upper bond capacities of supply spots and the lower bond minimal requirements of demand spots are the constrain functions. To sum up, the TOM outperforms the previous researches in 4 respects, which are 1) analytical solution, 2) high efficiency in term of computing time, 3) extension to multiple sets of tower cranes, and 4) providing detailed delivery plan between demand spots and supply spots.