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    中华视窗  
    你对地板裂缝修复计划了解多少?
    作者:佚名  来源:网络  时间:2019-5-13 15:25:39

      层是建筑物底部与土层接触的结构构件。加固材料碳纤维利用粘结剂将碳纤维片粘贴在混土构件表面,使混凝土与碳纤维片形成一体,形成复合材料体,通过其与结构或构件的协同工作,达到对结构构件补强加固及改善受力性能的目的,是一种非常简单且优良的加固补强方法。它承受地板上的荷载,并将力传递给地基。一般情况下,它主要由表面和基底组成。对
      的研究和分析证实,在不降低承载力的情况下,通常采用表面修补法、充填法和注射法处理裂缝:
      1。加固材料碳纤维利用粘结剂将碳纤维片粘贴在混土构件表面,使混凝土与碳纤维片形成一体,形成复合材料体,通过其与结构或构件的协同工作,达到对结构构件补强加固及改善受力性能的目的,是一种非常简单且优良的加固补强方法。表面修复。该方法适用于窄缝,可以恢复表面的美观,提高构件的耐久性。它通常用于在混凝土裂缝表面铺设薄膜材料,而环氧树脂或树脂浸渍玻璃布则是常用的。
      填饱。当裂缝较宽时,可以沿开裂混凝土表面凿开V形或U形槽,用树脂砂浆材料填充,也可使用水泥砂浆或沥青材料。
      注射。当裂缝宽度较小且较深时,可以采用在混凝土中注入修补材料的修补方法。首先,在裂纹处设置注射管,其他部分通过表面处理进行密封,并使用低粘度环氧树脂注入材料。插入修理用电泵或手动泵。在裂缝影响结构安全的情况下,可以采用环带加固、钢箍加固、粘贴加固等加固方法。该方法是一种结构加固方法,必须经过设计验算后才能进行。
      围护加固法当结构尺寸允许时,结构的外侧面或多面钢筋混凝土护套外,以增加钢筋和截面,提高其承载力;对于裂缝严重且未突破或一侧断裂的构件,将裂缝部位的钢筋保护层凿掉,钢丝包裹在一层内;大型设备基础一般采用添加钢带的方法来提高环向抗拉强度。
      钢箍加固法为防止裂缝扩展,提高结构的刚度和承载力,在裂缝周围加设U型螺栓或钢领,对构件进行拧紧。为了保证接缝的正常工作,钢领与混凝土表面应保持紧密的接触。
      粘贴加固。在钢板或型钢中使用的改性环氧树脂和粘结剂被粘结在构件裂纹部分的表面,使钢板或型钢与混凝土一起工作。粘结前,钢表面喷砂除锈,混凝土刷干净干燥,粘结层厚度可达1~4mm。


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