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钢结构工程的试验检测主要项目

发布时间:2015-8-27 11:16:04 浏览次数:1082

钢结构工程的制作及安装施工的多项试验检测工作是一般土建工程所没有的,这些试验检测项目主要有:钢材原材有关项目的检测(必要时),焊接工艺评定试验(必要时),焊缝无损检测(超声波、X射线、磁粉等)、高强度螺栓扭矩系数或预拉力试验、高强度螺栓连接面抗滑移系数检测、钢网架节点承载力试验、钢结构防火涂料性能试验等。

作好这些试验、检测工作要注意以下几点:

(1)要监督委托有相应资质的检测机构进行;

(2)要坚持取样、送检的见证制度,要避免试件与工程不一致现象;

(3)对于部分检测项目,具有相应资质的检测机构较少,路程较远,且费用较高,在这种情况下,监理工程师必须坚持原则,态度明确,立场坚定,及时督促承包单位落实这些工作,这是确保钢结构制作与安装质量及施工进度的必要措施,也是国家现行钢结构工程施工质量验收规范规定的“主控项目”。




The production and installation of steel structure engineering construction of a number of test work was no general civil engineering, the test project mainly include: steel raw material the detection of the project (if necessary), welding procedure qualification test (if necessary), weld NDT (ultrasonic, X-ray, magnetic powder, etc.), or the high strength bolt torque coefficient for tensile test, coefficient of high strength bolt junction surface slip resistance testing, bearing capacity of steel grid node test performance test fire retardant coating, steel structure, etc.

To prepare for the test, the test work should pay attention to the following:

(1) to supervise entrust to have the corresponding qualification of testing institutions;

(2) to adhere to the witness system of sampling, inspection, to avoid a specimen and engineering inconsistent phenomenon;

(3) for some test items, has the corresponding qualification of testing institutions is less, walk farther, and higher cost, in this case, the supervision engineer must adhere to the principle, clear, stand firm, urging contractors to implement the work in time, this is to ensure that the steel structure production and installation of necessary measures of the quality and construction progress, is also the current steel structure engineering construction quality acceptance specification provisions of the state of the master project.




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