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济南推拉篷工程使用性能间接受什么影响?

来源:http://www.sdcscp.com/ 日期:2020-12-18 发布人:admin

在济南推拉篷工程施工中,焊接变形直接影响安装使用功能。由于附加弯矩和二次应力间接影响钢结构工程的使用性能,因此对焊接变形的控制非常重要。
In the construction of Jinan sliding canopy project, welding deformation directly affects the installation and use function. Because the additional bending moment and secondary stress indirectly affect the service performance of steel structure engineering, the control of welding deformation is very important.
1. 减少焊缝的横截面积:在获得完整、无过多缺陷焊缝的前提下,尽量采用较小的坡口尺寸(角度、间隙)
1. Reduce the cross-sectional area of the weld: on the premise of obtaining complete and free from excessive defects, the smaller groove size (angle and gap) shall be adopted as far as possible
2. 对于屈服强度小于345 MPa,淬透性较低的钢,采用较小的热输入,尽量不预热或适当降低预热和层间温度:较好采用传热较小的焊接方式,如CO2气体保护焊
2. For the steel with yield strength less than 345 MPa and low hardenability, adopt smaller heat input, try not to preheat or appropriately reduce preheating and interlayer temperature: it is better to adopt welding method with less heat transfer, such as CO2 gas shielded welding
3.用多层焊代替单层焊。
3. Use multi-layer welding instead of single layer welding.
4. 在满足设计要求的条件下,纵向加强筋和横向加强筋的焊接可采用间歇焊接法,
4. Under the condition of meeting the design requirements, the intermittent welding method can be used for the welding of longitudinal and transverse stiffeners,
5. 可双面焊接时,应采用双面对称坡口,多层焊接应采用对称于构件中轴的焊接顺序。
5. When double-sided welding can be adopted, double-sided symmetrical groove shall be adopted, and the welding sequence symmetrical to the central axis of component shall be adopted for multi-layer welding.
济南遮阳篷工程使用性能间接受什么影响
What influence does Jinan sunshade project accept between performance
6. 当t型接头板厚度较大时,应采用坡口角对接焊,
6. When the thickness of T-joint plate is large, the butt welding of groove angle shall be adopted,
7. 采用焊前防变形法控制焊后角变形
7. The deformation prevention method before welding is used to control the angular deformation after welding
8. 采用刚性夹具固定方法控制焊接后的变形
8. Rigid fixture fixation method is used to control the deformation after welding
9. 采用预留长度法补偿焊缝的纵向收缩变形。例如,0.5 mm - 0.7 mm可以留给工字梁的纵向焊缝,0.5毫米可以保留的长度对应于每一对横向钢筋,和保留周边方法用于焊缝的纵向和横向收缩变形补偿的圆柱管成员。如果板的厚度大于10mm,每个纵向和周向焊缝的周长应保留2.0mm
9. The reserved length method is used to compensate the longitudinal shrinkage deformation of the weld. For example, 0.5 mm - 0.7 mm can be reserved for the longitudinal weld of I-beam, the length of 0.5 mm that can be retained corresponds to each pair of transverse reinforcement, and the circumferential method is used to compensate for the longitudinal and transverse shrinkage deformation of the weld. If the thickness of the plate is greater than 10 mm, the circumference of each longitudinal and circumferential weld shall be retained by 2.0 mm
济南推拉篷工程防腐涂层喷涂于钢结构表面,在钢结构表面形成保护膜,防止湿气、雨水对钢结构的腐蚀。当防腐材料,如防腐涂料、稀释剂和固化剂进入网站,他们也应该全面检查品种、规格、耐腐蚀、等,并检查材料证书、鉴定、测试报告等,应当符合规定如果防腐材料的质量问题根据设计和技术性能需求,可提交合格单位进行原料复验。
The anti-corrosion coating of Jinan sliding awning project is sprayed on the surface of steel structure to form a protective film on the surface of steel structure to prevent the corrosion of steel structure by moisture and rain. When anti-corrosion materials, such as anti-corrosion coatings, diluents and curing agents, enter the website, they should also comprehensively check the varieties, specifications, corrosion resistance, etc., and check the material certificates, identification, test reports, etc., which should conform to the national regulations. If the quality problems of anti-corrosion materials are in accordance with the design and technical performance requirements, they can be submitted to qualified units for raw material re inspection.
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