Method for enabling elevator shafts of super high-rise building to suppress fire chimney effect

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Method for enabling elevator shafts of super high-rise building to suppress fire chimney effect

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GAN TINGXIA / YANG JING / WANG JIONG / CHEN HUA / XIA YING / YU LIUYANG

The invention discloses a method for enabling elevator shafts of a super high-rise building to suppress the fire chimney effect. By means of the method, ventilation openings are arranged at the tops and the bottoms of the elevator shafts, the space sizes in the elevator shafts are enlarged in a manner of arranging communicating openings between the adjacent elevator shafts so as to balance the piston effect generated by high-speed motion of elevator cars, and the situation that vertical spreading of smoke is accelerated by the chimney effect is avoided; and meanwhile, positive-pressure air supply devices are arranged in elevator front chambers, and therefore smoke can be suppressed from entering the front chambers at the fire early stage, smoke diffusion can be avoided, and therefore the escape time of personnel can be guaranteed.

本发明公开了一种使超高层建筑电梯井抑制火灾烟囱效应的方法，其通过在电梯井的顶部与底部设置通风口，并在相邻电梯井之间设置连通口的方式扩大电梯井内的空间体积，以平衡因电梯轿厢高速运动而产生的活塞效应，避免烟囱效应加速烟气的竖向蔓延；同时通过在电梯前室设置正压送风装置，能够在火灾初期一直烟气进入前室，防止烟气扩散，从而保障人员的逃生时间。