An optimised internal transport principe for a high-rise building

An optimised internal transport principe for a high-rise building

Colsen, J.

Vambersky, J.N.J.A. (mentor)
Kaan, C.H.C.F. (mentor)
Welleman, J.W. (mentor)
Daamen, W. (mentor)
Bakker, J.C. (mentor)

Civil Engineering and Geosciences

Design and Construction

2008-10-17

Vertical transportation systems take up, especially in high-rise buildings, a lot of valuable floor space. The master project analyses different scenarios for reducing the floor space taken up by the vertical transportation system, by introducing another principle in vertical transportation: the loop transport principle. Conventional lifts are optimised, due to technical progress, and a smarter control of lift cabins, but cabins still move up and down in the same shaft. If it would be physically possible for cabins to move independently and behind each other, the number of cabins in two shafts could be higher than two (fig. 1). A model of the basic loop transport principle, developed in the master project, illustrates that a building using the loop transport principle can have significantly more floors compared to a building using a conventional lift, about twice as many. Starting point for this comparison is that both buildings uses the same floor space per floor for vertical transportation (two shafts) and the vertical transportation system provides satisfactory travel and waiting times. Techniques which can be used for the physical movement of cabins for the loop transport principle are described in patents. The developed model describes the basic loop transport principle; the functioning of the basic loop transport principle can therefore be quantified. Opportunities to improve the loop transport principle are based on two aspects: the control of the lift cabins and the way cabins move through the building. Important to know is that these two aspects are interdependent. Within the basic loop transport principle, cabins move entirely to the top or to the bottom to change their vertical direction. There are other variants of the loop transport principle where this is not necessary. Variants for the basic loop transport principle and suggested in the master project are; 3-1 loop transport principle (fig. 2), cabin out loop (fig. 3) and the loop in loop (fig. 4). A well functioning loop transport principle results in a system which acts more as a taxi whereas a conventional lift acts as a bus. Conventional lifts fill up and after that they will stop several times to deliver passengers. The loop transport principle has a more individual functioning, so smaller cabins can be used to achieve the same or better transport capacity.

high-rise building

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Student theses

master thesis

(c) 2008 Colsen, J.