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检查钢结构工程质量中设计图纸中经常出现的一些问题

发布时间:2015-11-13 13:40:30 浏览次数:537
首先,设计图纸应用规范不完善、不正确。
如果设计使用时,已经废除标准;有的材料品牌、等级不全、高强螺栓、普通螺栓,焊接连接点的标记或未明确显示了各种高强螺栓、普通螺栓,栓钉,拉铆钉和垫圈的规格模型、性能不具体标明,但都已列入了钢结构工程质量验收规范及强制性条文要求,设计图纸,如果还附加说明施工和检查只是根据不足的盲目施工和没有结果和的。
第二,设计总说明未载明工程安全等级,延长使用年限。
工程安全等级不同的焊接等施工检查要求。安全等级为一级、二级焊缝的焊接材料必须考试安全等级为二级;一级焊缝的焊接材料应考二级焊缝的焊接材料不必要的考试。
第三,钢材材质等级、高强度螺栓有一门考试的要求来明确。
什么样的设计图纸。Q235或不Q345 A、B级或任何不摩擦试验的要求,明确了也没琢磨考试要求施工单位无所适从。有的工程部门采购材料后再设计院认可工程质量对任意性的处理措施,非常不妥。
第四,施工图未注明焊接在槽形式、焊缝间隙、钝边槽角度,UT等级,是单面焊等。
有施工图对不同板厚的玫瑰焊未按要求规范开斜坡,本地压力线过于集中的国家技术规范违反质量验收通过,往往又보충할的缺陷。
第五、施工图还显示除锈等级。
好,油漆(涂料)品牌,材料,漆膜厚度,施工及验收要求,这样就没有根据的。

施工单位的施工图以后,一定要组织有经验的技术人员进行图纸会审,应用规范问题;节点没有清楚说明;强制性条文要求的内容设计总说明中不会显示,各种材料的规格、型号、性能、等级工程质量和工程安全等级要求是否明确;节点设计合理;施工中是无法逾越的困难等提前向设计单位提出的改进。设计图纸,确保工程质量的前提条件。


First, the design drawings of the application specification is not perfect, not correct.
If using the design have abolished standard; some materials brand, grade, high strength bolt, bolt, welding connection points are marked or not clearly shows a variety of high strength bolt, bolt, stud, pull rivet and washer model specification, performance is not specific standard, but have been included in the steel structure project quality acceptance specification and the mandatory provisions of the requirements, design drawings, if also added that construction and check just according to the problems of blind construction and no results and.
Second, the design of the total description does not specify the project safety level, the extension of the use of life.
Construction safety level of different welding and other construction inspection requirements. Safety level for the first grade, the welding material of the two grade weld must test the safety level of the two level; the welding material of the first grade weld should be taken into the examination of the welding material of grade two.
Third, steel material grade, high strength bolt has a test of the requirements to clear.
What kind of design drawings. Q235 Q345 A, or B or any friction test, the test didn't require the construction units to not know what course to take over. Some engineering department procurement of materials after the design of the hospital approved the quality of the project to deal with any of the measures, is very inappropriate.
Fourth, the construction plan is not indicated in the groove form, weld gap, edge groove angle, UT grade, is one side welding, etc..
Construction drawing on different plate thickness rose welding not according to the requirement of standard open slope, local pressure line is too focused on the technical norms of the state in violation of the quality acceptance by, often and defects
Fifth, the construction also shows rust grades.
Good, paint (paint) brand, material, film thickness, construction and acceptance requirements, so there is no basis.
After the construction unit of the construction drawing, be sure to organizations experienced technical personnel and drawings, standard application; node does not have a clear; mandatory provisions of the requirements of the contents of the total design does not display, a variety of materials, specifications, models, performance, grade engineering quality and safety engineering level requirement is clear; node design is reasonable; construction is unable to overcome difficulties in advance to the design units proposed improvements. Design drawings, ensuring the quality of the premise.



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