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Engineering quality inspection and identification

检测,包含钢结构和混凝土结构 工程 Engineering inspection, including steel structure and concrete structure engineering . When the use function changes, or when it is planned to carry out structural transformation, expansion, and reconstruction, and there is doubt about the safety of structural transformation.

 

工程 检测的等级 First, the level of engineering testing

   鉴定单元的归纳断定评级分为一、二、三、四,四个等级,应包含承重结构体系、结构安置和支撑体系、围护结构体系三个组合项目,以承重结构体系为主,按下列规定断定断定单元的归纳。 The inductive rating of the engineering appraisal unit is divided into one, two, three, four, and four levels, which should include three combined items of load-bearing structure system, structural resettlement and support system, and envelope structure system. The following rules determine the induction of the determination unit.

   1. When the difference between the determination level of the structural placement and support system, the envelope structure system and the load-bearing structure system is not greater than one level, the level of the load-bearing structure system can be used as the determination level of the determination unit;

   2. When the structural placement and support system, envelope structure system is two levels lower than the determination level of the load-bearing structure system, the level of the load-bearing structure system can be lowered to one level as the determination level of the determination unit;

   3. When the structural resettlement and support system and the national protection structure system are three levels lower than the determination level of the load-bearing structure system, the level of the load-bearing structure system may be lowered by one or two as the determination unit according to the above criteria and specific conditions. Determination level;

   4. Inductive determination should be based on inductive determination of the importance, durability, and operating conditions of the unit, and the above-mentioned determination results can be adjusted by no more than one level.

工程 安全检测鉴定的条件 Second, the conditions of engineering safety testing and identification

Under what conditions can I apply for a house safety inspection and appraisal ?

   1. Where towering, shelving or hanging objects are installed on a building, if it belongs to demolishing or changing the structure of the house, significantly increasing the load on the house, or setting up a tall building such as a billboard on the roof, the original building design unit or the relevant qualification The design unit of the grade proposes a design plan, and it can be set up only after the house safety appraisal agency has determined that it meets the safety conditions.

   2. Houses with severe damage are generally not allowed to be decorated. If decoration is really needed, the appraisal of the house should be carried out first, and repair and reinforcement measures should be taken to meet the safety conditions of residence and use before the decoration can be carried out.

   3. If the decoration of non-residential houses involves demolishing and modifying the structure of the house and significantly increasing the load on the house, the original house design unit or the design unit with the corresponding qualification level shall propose a design plan. construction.

   4. If the original house is changed to a place of public entertainment or production and operation, the operator shall apply to the house quality appraisal agency for appraisal of the house.

   5. If a natural disaster or explosion, fire or other accident endangers the safety of the house, the owner of the house shall apply to the house safety appraisal agency for a house appraisal in time.

   6. When constructing large-scale buildings or construction projects with pile foundations, underground buildings, and structures, the construction unit shall apply to the building safety appraisal agency for building appraisal of adjacent houses in the construction area before starting construction, and take safety protection measures in accordance with regulations.

工程 检测的内容 Third, the content of engineering testing

   检测主要内容应包括: The main contents of engineering testing should include:

   1.Historical data such as housing construction, reconstruction and expansion;

   2.Review of building axis, size of structural components and layout drawing of building;

   3.Detection of housing damage;

   4.House tilt detection;

   5. Detection of relatively uneven settlement of houses;

   6. Provide test conclusions and recommendations.

Fourth, the scope of application

工程 安全性进行检测与评估: When the following situations occur, engineering safety needs to be tested and evaluated:

   工程 因勘察、设计、施工、使用等原因,出现裂缝损伤或倾斜变形时。 1) When the project is damaged or inclined due to cracks due to survey, design, construction, use, etc. In addition to assessing structural safety and proposing treatment suggestions, such projects generally need to analyze the cause of damage, analyze which links such as survey, design, construction, and use cause existing damage, and provide a basis for liability determination. Residential quality improvement and arbitration appraisal mostly belong to this type of project.

   工程 因相邻工程影响,出现裂缝损伤或倾斜变形时。 2) When the project is affected by adjacent projects, crack damage or inclined deformation occurs. 工程 的裂缝损伤或倾斜变形系 工程 本身原因引起还是邻近基坑工程施工影响引起,评估结构安全性并提出合理的处理措施建议。 The focus of this type of structural safety inspection and evaluation is to distinguish whether the crack damage or inclined deformation system of the inspected project is caused by the construction itself or the influence of the adjacent foundation pit construction, assess the structural safety and propose reasonable treatment measures. Since most of these projects are commissioned after damage or deformation occurs, the parties may have conflicts, so there are also more courts commissioning arbitration and appraisal projects.

   工程 无法办理竣工验收手续或工商注册手续,有些虽然资料齐全,但未经竣工验收手续即交付使用。 3) Due to various reasons, the design, construction and other materials are incomplete, and the completed projects cannot go through the completion acceptance procedures or industrial and commercial registration procedures. Although some of the materials are complete, they are delivered without the completion acceptance procedures. 工程 的检测评估一般是出于办理竣工验收手续或 工程 产权证的目的。 The testing and evaluation of this type of project is generally for the purpose of completing the completion acceptance procedures or the project property right certificate. 工程 工程的施工质量,包括构件截面偏差、垂直度、平整度、表面缺陷、钢筋等隐蔽工程、材料强度等 ;图纸不全时尚需测绘必要的建筑、结构图纸。 In addition to the conventional safety inspection and evaluation content, the focus is on detecting the construction quality of engineering projects, including concealed works such as component section deviations, perpendicularity, flatness, surface defects, steel bars, and other material strength ; incomplete drawings require the necessary buildings to be mapped Structural drawings.

   工程 超过设计使用年限继续服役时。 4) When the project continues to serve beyond the designed service life. 工程 超过设计使用年限继续服役时, 工程 将出现不同程度的耐久性老化迹象,其结构功能出现不同程度的退化,需要进行全面的检测评估,除常规检测评估内容外,重点在于预测结构使用寿命、设定下一目标使用期并提出耐久性处理建议。 Generally speaking, when the project continues to serve for more than the designed service life, the project will show signs of durability aging to varying degrees, and its structure and function will show different degrees of degradation. A comprehensive inspection and evaluation is required. In addition to the conventional inspection and evaluation content, the focus is on Predict the service life of the structure, set the next target service life and propose durability treatment recommendations.

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