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<span style="font-size:16px;">福建钢结æž?/span><span style="font-size:16px;">因其自重较轻,且施工简洁,广泛应用于大型厂房、场馆、超高层等领域,但企业很大部分原因是为了优化结构、节省资源、循环运用,才实施了钢结构,使得企业重视推行钢结构的优势一起,而忽视了其缺点与安全的隐患。钢结构工程质量难以保证的原因有许多,也很杂乱,既有工艺不妥导致的问题,也有违背工艺操作形成的问题,还有因为施工人员的技术水平和责任心形成的问题,还有决策者失误形成的质量问题。今日莆田荣德鑫针对钢结构工程的一些质量问题做下剖析ã€?/span> </p> <p> <span style="font-size:16px;">01ã€?/span><span style="font-size:16px;">福建钢结æž?/span><span style="font-size:16px;">钢材自身存在的问é¢?/span> </p> <p> <span style="font-size:16px;">现象</span> </p> <p> <span style="font-size:16px;">某单位在加工某大åŽ?200*1200*60的箱形柱时,在施焊过程中突然发现60mm作为腹板的厚板呈现了撕裂现象,肉眼可见清晰的裂纹把板从厚度方向分红两半,通过NDT检测发现裂纹深度发作在深度3mm左右,一起对同一类型同一批号的别的几张板切割的零部件进行检测,发现板内存在夹层,轧制质量不好是形成质量问题的主要原因。在焊接的过程中因为焊接发作的焊接应力效果将夹层的资料拉开。由此呈现了厚板沿厚度方向撕裂的现象ã€?/span> </p> <p> <span style="font-size:16px;">福建钢结æž?/span><span style="font-size:16px;">剖析</span> </p> <p> <span style="font-size:16px;">因为运用部位的特别性,该零部件在构件中作为腹板运用,沿纵向上下方向焊接的零部件在焊接形式上开的全熔透坡口受力的劲板,因为板内部存在的分层,焊接发作的焊接应力向外释放从而沿厚度方向撕裂了板ã€?/span> </p> <p> <span style="font-size:16px;">福建钢结æž?/span><span style="font-size:16px;">办法</span> </p> <p> <span style="font-size:16px;">能够依据实际情况采纳以下的几种办法进行处理:</span> </p> <p> <span style="font-size:16px;">ï¼?)大量的钢材内部存在的夹层属于钢厂自身在轧制过程中发作的质量问题,现已超过了国家标准规范的要求,能够要求钢厂派人来核实,同钢厂洽谈退货或换货处理ï¼?/span> </p> <p> <span style="font-size:16px;">ï¼?)如果夹层数量较少能够征求技术部门和业主的意见,将信息反馈给钢厂,对呈现的问题采纳施工补救办法,能够依据无损检测的结果,在有问题的部位采用气刨悉数刨开,超过自身的深度,然后用等强度焊接资料进行填充,完毕后对外表进行处理,在规定的时刻后进行NDT检测,一起对相同的构件取样进行理化查验,达到设计规范要求能够持续运用ï¼?/span> </p> <p> <span style="font-size:16px;">ï¼?ï¼?/span><span style="font-size:16px;">福建钢结æž?/span><span style="font-size:16px;">在监理的见证下将该零部件割掉,从头换上满足条件的板材,换下的零部件用于非承重和非重要部位或作为辅材运用,完成后在规定的时刻后进行 NDT检测,做好记录ã€?/span> </p> <p> <span style="font-size:16px;">02、在施工流程中呈现的问题</span> </p> <p> <span style="font-size:16px;">加工制造过程中较易发作质量问题且发作后处理起来很扎手的主要是特别工序和重要工序,一般工序发作质量问题所占的比率很小。在施工过程中,特别工序有焊接、涂装,重要工序有下料,安装ã€?/span> </p> <p> <span style="font-size:16px;">以上就是<a href="http://www.axite-create.com/" target="_blank">福州田民钢结构有限公å?/a>总结的内容,希望对大家有所帮助ï¼?br /> </span> </p> <p> <span style="font-size:16px;"><img src="http://www.axite-create.com/uploads/news/20190514053738.jpg" /><br /> </span> </p></p> </div> <p><div>上一æ?<a href="108.html">你知道福建钢结构的工序吗</a></div> <div>下一æ?<a href="106.html">需要留意福建钢结构轻钢结构厂房规划的问é¢?/a></div> </p> <div class="tag">相关标签ï¼?a href='/key.aspx?k=%b8%a3%bd%a8%b8%d6%bd%e1%b9%b9'>福建钢结æž?/a>,<a href='/key.aspx?k=%b8%a3%bd%a8%b8%d6%bd%e1%b9%b9%c5%fa%b7%a2'>福建钢结构批å?/a>,<a href='/key.aspx?k=%b8%a3%bd%a8%b8%d6%bd%e1%b9%b9%b3%a7%bc%d2'>福建钢结构厂å®?/a>,</div> </div> <div class="commentdetail"> <div class="title02"> <table border="0" cellpadding="0" cellspacing="0"> <tr> <td valign="top"><h4><span>相关新闻</span></h4></td> </tr> </table> </div> <div class="comment_list"> <ul> <li><a href="/news/115.html" rel="nofollow">施工中是什么问题发生福建钢结构变形ï¼?/a></li> <li><a href="/news/114.html" rel="nofollow">福建钢结构工程防火涂料的施工关键</a></li> <li><a href="/news/113.html" 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