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  • 确定房屋结构加固使用年限的方法
  • 本站编辑:浙江中赫工程检测有限公司发布日期:2020-03-07 09:50 浏览次数:

当建筑出现问题时,我们要找专门的检测公司进行检测和加固工作,那么,对于房屋结构加固后的设计使用年限是什么样的呢?下面和大家一起了解一下:

如何确定房屋结构加固使用年限

一、根据《民用建筑设计通则》(GB 50352-2005)的规定,建筑的设计使用年限分为四类:

1、临时性建筑设计使用年限为5年;

2、易替换结构构件的建筑设计使用年限为25年;

3、普通建筑物和构筑物设计使用年限为50年;

4、纪念性建筑和特别重要的建筑设计使用年限为10年;

二、根据 《混凝土结构加固设计规范》(GB50367-2006)第3.1.7条的规定:

3.1.7混凝土结构的加固设计使用年限,应按下列原则确定:

1、结构加固后的使用年限,应由业主和设计单位共同商定:

2、一般情况下,宜按30年考虑;到期后,若重新进行的可靠性鉴定认为该结构工作正常,仍可继续延长其使用年限;当业主要求房屋结构加固后的使用年限为50年时,其所使用的胶和聚合物的粘结性能,应通过耐长期应力作用能力的检检验。

3、对使用胶粘方法或掺有聚合物加固的结构、构件,尚应定期检查其:工作状态。检查的时间间隔可由设计单位确定,但第一次检查时间不应迟于10年。

由以上规定可以得出,一般建筑物在经过加固处理并验收合格后,试用期可以增加30年。

When the building problems, we need to find a special testing company to test and strengthen the work, then, for the structure of the building after the design life of reinforcement is what? The following and we understand: how to determine the building structure reinforcement service life 1, according to the "civil building design principles" (GB 50352-2005) provisions, the design service life of buildings can be divided into four categories: 1. The design service life of temporary buildings is 5 years; 2. The design service life of easily replaceable structural components is 25 years; 3. The design service life of ordinary buildings and structures is 50 years; 4. The design service life of memorial buildings and buildings of special importance shall be 10 years. 2. According to Article 3.1.7 of the code for design of reinforcement of concrete structures (GB50367-2006) , the design service life of reinforcement of concrete structures shall be 3.1.7 years, the service life of the reinforced structure shall be determined according to the following principles: 1. The service life of the reinforced structure shall be mutually agreed by the owner and the design unit: 2. In general, it shall be considered on the basis of 30 years; after the expiration, if the reliability appraisal is re-conducted and the structure is found to be working normally, the service life of the house can still be prolonged; when the owner requests the service life of the house structure to be 50 years, the adhesive performance of the glue and polymer used should pass the test of long-term stress resistance. 3. The working state of the structures and components strengthened by adhesive method or mixed with polymer should be checked regularly. The time interval for inspection may be determined by the design unit, but the first inspection shall not be later than 10 years. From the above provisions can be concluded that the general building after reinforcement treatment and acceptance of qualified, the probation period can be increased by 30 years.

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