欢迎您访问青岛亿金来钢膜结构安装修缮工程有限公司 网站!

青岛亿金来钢膜结构

承接各停放,景观 体育看台等膜结构棚

青岛亿金来钢膜结构安装修缮工程有限公司
统一咨询电话:15694496888
当前位置:首页>新闻中心-公司新闻-及时的对体育馆钢构件进行修复或加固
及时的对体育馆钢构件进行修复或加固
来源:http://www.sdcscp.com/ 发布时间:2022-08-04
膜结构体育馆在经过风雪的荷载反复作用后,部分钢构件可能会受到构造、质量、安装不当等原因的影响,出现具有扩展性或脆断倾向性的裂纹,严重影响体育馆的稳定及安全性,所以要及时的对其进行修复或加固。
After the repeated action of wind and snow, some steel members of the membrane structure gymnasium may be affected by the structure, quality, improper installation and other reasons, and cracks with expansibility or brittle fracture tendency may appear, which seriously affects the stability and safety of the gymnasium, so it is necessary to repair or reinforce it in time.
一、体育馆钢构件裂纹修复方法
1、 Repair method of cracks in gymnasium steel members
1、清洗裂纹两边80mm以上范围,内板面油污至露出洁净的金属面;
1. Clean the range of more than 80mm on both sides of the crack, and the oil stain on the inner plate surface to expose the clean metal surface;
2、用碳弧气刨、风铲或砂轮将裂纹边缘加工成坡口,直达纹端的止裂孔,坡口的形式应根据板厚和施工条件按现行相关要求选用,用碳弧气刨加工坡口时,应用砂轮将坡口表面的渗碳层磨掉;
2. Use carbon arc air gouging, air shovel or grinding wheel to process the crack edge into a groove, directly reaching the crack stop hole at the end of the grain. The form of the groove should be selected according to the plate thickness and construction conditions according to the current relevant requirements. When using carbon arc air gouging to process the groove, use grinding wheel to grind off the carburized layer on the groove surface;
3、将裂纹两侧及端部金属预热至100~150℃,并在焊接过程中保持此温度;
3. Preheat the metal at both sides and ends of the crack to 100~150 ℃, and maintain this temperature during welding;
4、用与钢材相匹配的低氢或超低氢型焊条施焊,并尽可能用小直径焊条分段分层逆向施焊,焊接顺序,每一道焊完后宜立即进行锤击;
4. Use low hydrogen or ultra-low hydrogen type welding rods that match the steel for welding, and use small-diameter welding rods as far as possible for reverse welding in sections and layers. The welding sequence should be hammered immediately after each welding;
5、按设计要求检查焊缝质量;
5. Check the weld quality according to the design requirements;
6、对承受动力荷载的构件,堵焊后其表面应磨光,使之与原构件表面齐平,摩擦痕迹线应大体与裂纹切线方向垂直;
6. For members bearing dynamic loads, the surface of the members shall be polished after plug welding to make it flush with the original member surface, and the friction trace line shall be roughly perpendicular to the tangent direction of the crack;
7、对重要的结构或厚板构件,堵焊后应立即进行退火处理。
7. For important structures or thick plate components, annealing treatment shall be carried out immediately after plugging welding.
膜结构体育馆
钢构件修复与加固注意事项
Precautions for repair and reinforcement of steel members
1、在结构构件上发现裂纹时,作为临时应急措施之一,可在板件裂纹的端外0.5~1.0t(t为板件厚度)处钻孔,以防止其进一步急剧扩展(该孔称为止裂孔),并及时根据裂纹性质及扩展倾向再采取恰当措施修复加固。
1. When cracks are found on structural members, as one of the temporary emergency measures, holes can be drilled at 0.5~1.0t (t is the thickness of the plate) outside the crack end of the plate to prevent it from further rapid expansion (the hole is called the crack hole), and appropriate measures can be taken to repair and reinforce it in time according to the crack nature and expansion tendency.
2、在对有动力荷载构件加固设计时,应按《钢结构设计规范》的规定进行疲劳验算,必要时应作专门研究,进行抗脆性计算。
2. In the reinforcement design of members with dynamic load, fatigue checking calculation shall be carried out according to the provisions of the code for design of steel structures, and special research shall be carried out to calculate the brittleness resistance when necessary.
3、为提高结构的抗脆性断裂和疲劳破坏的性能,在结构加固的构造设计和制造工艺方面应遵循下列原则:降低应力集中程度,避免和减少各类加工缺陷,选择不产生较大残余拉应力的制作工艺和构造形式,以及采用厚度尽可能小的轧制板件等。
3. In order to improve the performance of the structure against brittle fracture and fatigue failure, the following principles should be followed in the structural design and manufacturing process of structural reinforcement: reduce the degree of stress concentration, avoid and reduce all kinds of processing defects, select the manufacturing process and construction form that does not produce large residual tensile stress, and use the rolled plates with the smallest thickness as possible.
虽然对体育馆来说,钢构件出现裂纹是十分危险的,但如果大家可以选用优质的材料,并采用合理的维护方法,一般是不会出现这种情况的。所以小编建议大家选择的膜结构厂家购买并搭建体育馆要谨慎,更多事项就来我们网站http://www.sdcscp.com咨询。
Although cracks in steel members are very dangerous for gymnasiums, this situation will not generally occur if you can choose high-quality materials and adopt reasonable maintenance methods. Therefore, Xiaobian suggested that the membrane structure manufacturers you choose should be careful when purchasing and building gymnasiums. For more matters, please come to our website http://www.sdcscp.com consulting service
图标分类中心

Product

联系我们
青岛亿金来钢膜结构安装修缮工程有限公司 青岛亿金来钢膜结构安装修缮工程有限公司

联系电话:15694496888

联系地址:山东省青岛市城阳区前海西社区居委会西100米