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It is convenient for fighting and evacuation, and a circular fire lane should be set up. With the accelerating pace of urbanization, urban land is increasingly tight, which promotes the construction of high-rise buildings. Many high-rise buildings, due to poor consideration of fire prevention design and other reasons, have many congenital hidden dangers, and fires occur from time to time, causing heavy losses. In order to create convenient conditions for fire fighting and rescue work and ensure the safety of buildings, circular fire lanes should be set up around high-rise buildings. However, regardless of the size of the building, it is indeed difficult to require the circular fire lanes. Lanes can be set up along the two long sides of the building. In order to prevent the collapse of building components in case of fire from affecting the normal operation of the fire lane, the distance between the fire lane and the outer wall should be 5m. There should be no trees, overhead pipelines, etc. that hinder the operation of climbing fire engines between fire lanes and high-rise buildings. If the total length of the building exceeds 220m, a fire lane shall be set up to pass through the building. There is no inner courtyard in the building, there are ring fire lanes around it, and fire engines crossing the building need to be set up. Q: An L-shaped high-rise building has a total length of about 170m, a length of 120m along the street, and a length of 50m along the inner street (residential road). Do you want to set up fire lanes crossing the building? A: The relevant provisions of the "Construction Regulations" and "High Regulations" consider that there is no restriction on the length of the two wings on the premise of meeting the requirements of fire fighting and evacuation. The building only needs to set up a pedestrian passageway connecting the street and the inner courtyard at the part over 80m along the street, and there is no need to set up a fire lane. In the planning of fire lanes, in addition to the relevant provisions of the "Construction Regulations" and "High Regulations", attention should also be paid to十三岁的黎璃在进入初中的第一天就注意到了这个帅气且玩世不恭的少年裴尚轩，他像一缕阳光温暖了黎璃的生活。这对相貌平凡的女生与外表英俊的男生，品学兼优的女生与成绩倒数的男生之间注定不会是令人羡慕的佳偶天成。距离圣诞节还有一周，美丽的蒙特纳罗女公爵玛格丽特与长相跟自己一模一样的芝加哥平民史黛西对换了身份。在圣诞老人助手的魔法下，玛格丽特爱上了史黛西英俊的同事，而史黛西则爱上了玛格丽特的未婚夫，一位风度翩翩的王子。The utility model will be further described below with reference to the accompanying drawings.Showtime正式预订萨莎·拜伦·科恩打造的讽刺剧集《谁是美国？》，该剧共7集，本周日首播。Showtime将该剧形容为“可能是电视史上最具危险性的一档电视节目”。联邦调查局第四季姑奶奶呦……杨长帆欲哭无泪，何永强送这个的时候说什么了没？不知道，赵思萍传的，还有一封信我给退了。