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求解张家港屋顶排水设计哪种好

求解张家港屋顶排水设计哪种好

浏览：30次 | 提问时间： 07-30 08:52

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小细腿 07-30 08:53

1、无组织排水：又称自由落水，是指屋面雨水直接从檐口落至室外地面的一种排水方式。具有构造简单、造价低廉的优点，但屋面雨水自由落下会溅湿墙面，外墙墙脚常被飞溅的雨水侵蚀，影响到外墙的坚固耐久性，并可能影响人行道的交通。无组织排水方式主要适用于少雨地区或一般低层建筑，不宜用于临街建筑和高度较高的建筑。2、有组织排水：屋面雨水通过排水系统，有组织地排至室外地面或地下管沟的一种排水方式。具有不妨碍人行交通、不易溅湿墙面的优点，因而在建筑工程中应用非常广泛。但与无组织排水相比，其构造较复杂，造价相对较高。外排水：常用外排水方式有女儿墙外排水、檐沟外排水、女儿墙檐沟外排水三种(图8-7)。在一般情况下应尽量采用外排水方案，因为有组织排水构造较复杂，极易造成渗漏。在一般民用建筑中，最常用的排水方式有女儿墙外排水和檐沟外排水两种。内排水：水落管位于外墙内侧。多跨房屋的中间跨为简化构造，以及考虑高层建筑的外立面美观和寒冷地区防止水落管冰冻堵塞等情况时，可采用内排水方式。泛水是建筑上的一种防水工艺，通俗的说其实就是在墙与屋面，也就是在所有的需要防水处理的平立面相交处进行的防水处理，说白了就是用防水材料把墙角包住。和散水不同其构造要点及做法为：(1)将屋面的卷材继续铺至垂直墙面上，形成卷材防水，泛水高度不小于250mm。(2)在屋面与垂直女儿墙面的交接缝处，砂浆找平层应抹成圆弧形或45度斜面，上刷卷材胶粘剂，使卷材胶粘密实，避免卷材架空或折断，并加铺一层卷材。(3)做好泛水上口的卷材收头固定，防止卷材在垂直墙面上下滑。一般做法是：在垂直墙中凿出通长的凹槽，降卷材收头压入凹槽内，用防水压条钉压后再用密封材料嵌填封严，外抹水泥砂浆保护。凹槽上部的墙体亦应做防水处理。通俗解释：泛水是指屋面女儿墙、挑檐或高低屋面墙体的防水做法，其主要作用就是保证女儿墙、挑檐、高低屋面墙不受雨水冲刷，以及保护屋面其余地方的防水层(不至于进水)。

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求解张家港屋顶排水设计哪种好

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