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10秒装修报价 装修要花多少钱?获得精准报价,省钱30%
168211
元
材料费:77201元
人工费:86544元
设计费:1760元
质检费:2706元
(1)施工缝应留置在基础的顶面、梁或吊车梁牛腿的下面、吊车梁的上面、无梁楼板柱帽的下面。
(2)和楼板连成整体的大断面梁,施工缝应留置在板底面以下20mm~30mm处。当板下有梁托时,留置在梁托下部。
(3)对于单向板,施工缝应留置在平行于板的短边的任何位置。
(4)有主次梁的楼板,宜顺着次梁方向浇筑,施工缝应留置在次梁跨度中间1/3的范围内。
(5)墙上的施工缝应留置在门洞口过梁跨中1/3范围内,也可留在纵横墙的交接处。
(6)楼梯上的施工缝应留在楼梯上三步的位置,并垂直于踏步板。
(7)水池池壁的施工缝宜留在高出底板表面200mm~500mm的竖壁上。
(8)双向受力楼板、大体积混凝土、拱、壳、仓、设备基础、多层刚架及其他复杂结构,施工缝位置应按设计要求留设。
施工缝的位置应设置在结构受剪力较小和便于施工的部位,且应符合下列规定:柱应留水平缝,梁、板、墙应留垂直缝。
(1)施工缝应留置在基础的顶面、梁或吊车梁牛腿的下面、吊车梁的上面、无梁楼板柱帽的下面。
(2)和楼板连成整体的大断面梁,施工缝应留置在板底面以下20mm~30mm处。当板下有梁托时,留置在梁托下部。
(3)对于单向板,施工缝应留置在平行于板的短边的任何位置。
(4)有主次梁的楼板,宜顺着次梁方向浇筑,施工缝应留置在次梁跨度中间1/3的范围内。
(5)墙上的施工缝应留置在门洞口过梁跨中1/3范围内,也可留在纵横墙的交接处。
(6)楼梯上的施工缝应留在楼梯上三步的位置,并垂直于踏步板。
(7)水池池壁的施工缝宜留在高出底板表面200mm~500mm的竖壁上。
(8)双向受力楼板、大体积混凝土、拱、壳、仓、设备基础、多层刚架及其他复杂结构,施工缝位置应按设计要求留设。
题主好,楼梯施工缝混凝土施工缝不应随意留置,其位置应事先在施工技术方案中确定。确定施工缝位置的原则为:尽可能留置在受剪力较小的部位;留置部位应便于施工。承受动力作用的设备基础,原则上不应留置施工缝;当应该留置时,应符合设计要求并按施工技术方案执行。期望可以对你有用!
施工缝:因施工组织需要而在各施工单元分区间留设的缝。施工缝并不是一种真实存在的“缝”,它只是因后浇注混凝土超过初凝时间,而与先浇注的混凝土之间存在一个结合面,该结合面就称之为施工缝。因混凝土先后浇注形成的结合面容易出现各种隐患及质量问题,由此看来不同的结构工程对施工缝的处理都需要慎之又慎。沉降缝:上部结构各部分之间,因层数差异较大,或使用荷重相差较大;或因地基压缩性差异较大,总之一句话,可能使地基发生不均匀沉降时,需要设缝将结构分为几部分,使其每一部分的沉降比较均匀,防止在结构中产生额外的应力,该缝即称之为“沉降缝”。伸缩缝:若建筑物平面尺寸过长,因热胀冷缩的缘故,可能引发在结构中产生过大的温度应力,需在结构一定长度位置设缝将建筑分成几部分,该缝即为温度缝。对不同的结构体系,伸缩缝间的距离不同,我国现行规范《混凝土结构设计规范》GB50010-2002对此有专门规定。可见,除了施工缝,其余两种缝均是真实存在的缝隙。《建筑抗震设计规范》GB50011-2001规定:对有抗震设防要求的建筑物,沉降缝和伸缩缝的宽度都应该满足抗震缝宽度的规定。所谓抗震缝,是由于建筑物平面不规则,或竖向不规则,而对结构抗震不利,而设缝将结构分为若干部分。概括有这些:施工缝:受到施工工艺的限制,按计划中断施工而形成的接缝,被称为施工缝。混凝土结构由于分层浇筑,在本层混凝土与上一层混凝土之间形成的缝隙,就是最常见的施工缝。并不是真正意义上的缝,而应该是一个面;沉降缝:为克服结构不均匀沉降而设置的缝,须从基础到上部结构完全分开;伸缩缝:为克服过大的温度应力而设置的缝,基础可不断开;抗震缝:为使建筑物较规则,以期有利于结构抗震而设置的缝,基础可不断开。在抗震设防区,沉降缝和伸缩缝须满足抗震缝要求。