Monday, December 20, 2010
【 Weak current College 】 waste industrial buildings and old wood buildings renovation process of fire safety issues---Power By 【 China power house network 】
With the rapid development of urban construction, some have some historical value and local architectural characteristics of waste industrial buildings and old wood structures, gradually exploitation on the promotion of culture and creativity, the leisure industry development and exposure of local cultural characteristics has played a positive role. The building itself is widespread fire resistance rating of low, fire-fighting facilities lack, evacuation problems such as poor. How to strengthen the fire protection regulation, to take effective measures to improve the building fire safety performance, itself is to ensure that this type of building renovation process important aspects of fire safety. From the existing fire technical standards, this type of architecture it is difficult to meet the requirements for fire-fighting, especially in building structures of fire performance, the existing means of some fire prevention treatment, it is difficult to maintain the building's original features, architecture, and design units. Therefore suitable to adopt some measures to regulate the orderly protection such building renovation process of fire safety and Fire Department of new topics. Here, the author according to the local part of the works of problems and some of the successful experience in the field, some personal views, for peer reference.
One is the standard working procedures, enhanced source management. Old industrial buildings and old wood frame construction and use of, related to the nature of the change of building use and improvement of indoor and outdoor decoration. Reform process, the nature of the change of building use and safety, determine a building can use revamping. Currently, due to the lack of a unified centralized management, fire supervision also exist "leaky pipe out of control", the renovation process will inevitably exist "fait accompli" phenomenon, often causing fire supervision of passive and construction unit investment waste. According to the spirit of consensus building 15, joint review of the mechanism must be established in order to jointly oversee effectiveness, reconstructed in the process of using the work of the approval. By Government-related documents, address the building renovation process in land nature, urban planning, safety issues, for approval to provide lead by fire. Through the planning, construction, housing management, soil management, safety, fire and other functions of the joint review to rationally determine the service life, appearance, content, ensure that the requirements engineering content comply with relevant laws and regulations. Through the establishment of joint review mechanism, a unified centralized, source control, avoid unit or individual blind investment is wasted, ensure fire protection approval meets safety requirements related to unit, and local government industry development-oriented.
The second is correct positioning function, from the sources contain the fire hazard. Old industrial buildings and old wood frame construction. There is a fire resistance rating, two buildings, but most are fire-resistant grades less three or four level building fire rating. The current architectural design fire protection standard (2006 Edition) addition of wood frame buildings fire design requirements, but the old wood buildings renovation design, generally difficult to achieve this requirement. In particular, walls, columns, beams, floors and other components of fire performance, if the modification in accordance with current norms, it is difficult to maintain the original architectural features. Three or four-stage fire-resistant grade waste industrial building renovation, most are just temporary transitional use, if the current specification requirements of primary and secondary fire level of transformation, neither economic nor reasonable. Therefore, this kind of building fire safety audit, management, renovation of the building should be in accordance with the requirements, through the use of a reasonable limit, according to the functionality of the original building, the fire conditions, within the limits of construction to ensure safety. On wood antique buildings and three or four-stage fire-resistant grade waste building renovation of use, its functionality should be targeted at the General exhibition, visiting, Office premises, should be strictly forbidden to dance, performing arts, and other personnel-intensive sites exist. On a smaller scale dining, casual place settings, be sure to use the open part of the independent settings in primary and secondary fire resistance of building, reducing the chance of fire occurred. On primary and secondary levels of fire for industrial buildings, ensure that the personnel-intensive construction and fire safety of buildings.
The third is to take technical measures to improve the fire performance of construction. For fire resistance ratings for three or four levels of waste industrial buildings and old wood frame construction, for civil use, where possible in accordance with building norms and architectural layers, a more reasonable technical measures to improve its fire-resistant performance, increase the margin of the evacuation. The reuse of waste building, must ensure that the evacuation time security, this is one of the most basic requirement, but also our implementation of the fire's bottom line. There are two main, first, the staircases of security. Evacuation staircases settings a total width to consider, second, it is considered safe evacuation distance, the third is considered stairs themselves smoke fire capability. When building fire resistance rating is low, the width and the distance between the two indicators must be higher than the existing fire technical standards to facilitate rapid evacuation fire personnel. Staircases in fire early smoke fire capability can be separated by non-burning material, stairs and other parts of the formation of independent fire separation, make sure that the evacuation process is not affected by the smoke. Under normal circumstances, should not be used as an open stairway evacuation channels. Another aspect is the fire resistance of building elements. Fire resistance of building elements, directly affect fire evacuation and fire safety. Three-, four-level fire resistance rating of the reuse of disused buildings, in most cases need to maintain the original architectural features, therefore, in the wood surface brush fire retardant coating, outsourcing general fire materials, construction unit. Shanghai and other places on this kind of problems has some good experience worthy of reference. Primarily on the need to maintain intact the structure of the exposed wood, using outsourcing load bearing members glass fireproof; on to subtle wood frame load bearing members, outsourcing generally non-burning material or brush fire retardant paint. This improves the performance of fire resistance of building elements, has better maintain the building's original features.
Fourth, strengthen the construction of building fire facilities, enhance the capacity to resist fire building. On the technical standards in accordance with the existing fire can not set the automatic fire fighting facilities in three or four-stage fire-grade construction, according to whether it has a historical value and other factors, to maximize building automatic fire-fighting setThe fortification standard fertilizer. When water supply conditions essential to meet the local application of system specifications, the preferred local application systems, reduce costs, improve construction unit acceptance; when the application does not meet the local system specifications, you should strictly follow the automatic sprinkler system design and construction. Vigorously promote fire alarm, conditional, you should set the automatic fire alarm system, improve the building's fire prevention and control. If smaller, you can use dotted with smoke temperature fire alarm system, improve the ability of rapid fire. In indoor hydrant system design process, should promote self-help-hydrant, convenient fire early stage staff help themselves. Since this type of building fire load relatively large, smoke control design to strictly enforce existing fire technical standards, appropriate to increase the amount of exhaust smoke, make sure the phases of indoor space for evacuation.
Old industrial buildings and old wood frame building renovation is to raise the level of local cultural's important aspects of architecture. Scientifically formulate transformation using the pre condition, by limiting functionality, enhanced facilities, strengthen management methods, ensure the safety of using properties and phase applies.
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