问题 问答题 案例分析题

某电影院位于某地下人防工程的地下二层整层(地下二层的室内地面与室外出入口地坪高差为9m),建筑面积4200m2,设有1个大观众厅(建筑面积600m2),7个小观众厅(建筑面积均为300m2);共划分6个防火分区,其中大厅、售票区、展示区为一个防火分区(建筑面积500m2),办公、管理用房为一个防火分区(建筑面积400m2),放映设备区为一个防火分区(建筑面积300m2),观众厅(均设有固定座位)区域分为3个防火分区(每个防火分区的建筑面积均不大于1000m2);设有7部通至室外的封闭楼梯间,其中大厅所在防火分区两部,其余每个防火分区各1部;各相邻防火分区之间均通过疏散走道连通。该电影院按有关国家工程建设消防技术标准配置了自动喷水灭火系统和火灾自动报警系统等消防设施及器材。

请分析以上案例,回答下列问题:

1.该电影院观众厅内的哪些部位的装修材料燃烧性能等级应设为A级?

2.人防工程内用防火墙划分防火分区确有困难时,可采用防火卷帘分隔,但应符合哪些规定?

答案

参考答案:

1.该电影院观众厅内的顶棚、墙面、地面的装修材料燃烧性能等级应设为A级。

2.人防工程内用防火墙划分防火分区确有困难时,可采用防火卷帘分隔,但应符合下列规定:

①当防火分隔部位的宽度不大于30m时,防火卷帘的宽度不应大于10m;当防火分隔部位的宽度大于30m时,防火卷帘的宽度不应大于防火分隔部位宽度的1/3,且不应大于20m。

②防火卷帘的耐火极限不应低于3.00h;当防火卷帘的耐火极限符合现行国家标准《门和卷帘的耐火试验方法》(GB/T7633-2008)有关背火面温升的判定条件时,可不设置自动喷水灭火系统保护;当防火卷帘的耐火极限符合现行国家标准《门和卷帘的耐火试验方法》((GB/T7633-2008)有关背火面辐射热的判定条件时,应设置自动喷水灭火系统保护;自动喷水灭火系统的设计应符合现行国家标准《自动喷水灭火系统设计规范(2005年版)》(GB50084-2001)的有关规定,但其火灾延续时间不应小于3.00h。

③防火卷帘应具有防烟性能,与楼板、梁和墙、柱之间的空隙应采用防火封堵材料封堵。

④在火灾发生时防火卷帘应能自动降落,且具有信号反馈的功能。

单项选择题
单项选择题

Are you interested in seeing the beautiful fall foliage of New England but tired of traffic jams and overbooked hotels Then this year forget the crowds in New England and see the beautiful colors of autumn in the Catskills.
These rugged mountains in New York State, just 90 miles northwest of New York City, are famous for the legendary tales of Rip Van Winkle, and more recently for the summer hotels mat sprang up in the region during the 1940s, 1950s, and 1960s. Families trying to escape the heat of New York City found the Catskills to be the perfect place to stay for a month or so each summer. By the late 1950s there were over 500 resorts and hotels offering nighttime entertainment as well as all kinds of outdoor activities. Famous comedies like Jackie Gleason, Joan Rivers, and Sid Caesar all got their start touring the hotel clubs here. Since the introduction of air-conditioning and cheaper air travel, however, families have stopped coming to the Catskills in such large numbers, chasing instead more distant locations at different times of the year. Many of the Catskills hotels closed in the 1970s, but some remain and have expanded and changed their facilities to meet the needs of today’s visitors.
Currently, there are many activities available to the traveler besides witnessing the changing colors of the leaves. There is an all-organic sheep farm where visitors can see how a traditional sheep farm operates. There are also hundreds of miles of scenic drives in the area. Route 42, for instance, is an excellent site for spotting bald eagles. For more information on vacations in the Catskills, call the office of Public Information.

The author’s main purpose is to ______.

A. promote the Catskills as a vacation destination
B. introduce visitors to famous Catskills entertainers
C. describe the history of the Catskills region
D. compare the Catskills to New England