推荐回答(5个)
首先,节点详图都是从整图上攫取某个部位而展开描绘的,必须先弄清楚它表示的是哪一个部位。在建施图或结施图上,凡是需要另做详图的地方,都会给出索引符号。符号如图:其中,引线所指就是节点处。
第二,节点详图的剖面(截、断面)有方向性。比如,一根常见的筷子,从中间截断,往一端看是圆形的,往另一端看方形的,这个方向不能颠倒。在大图上的索引符号中,与引线平行的短粗线就是标记,粗短线在哪一面,那一面就是剖断的方向。如上图左表示往上看,图右表示往下看。
第三,如何从施工图上找到相应的节点详图?上图的索引标柱,也就是那个圆圈里,有一个类似“分式”的东西。“分母”为“—”的,说明它的详图就在本张图纸上,为其它数字的,表示在相应编号的图纸上,如“2”,就需要到2号图纸上去找。类似“分子”的数字,就是节点详图的编号。比如,多个节点详图都绘在2号图纸上,只需对照详图编号就能找到。
总之,节点详图,是把在建施或结施整图当中无法表示清楚的某一个部分单独拿出来表现其具体构造的,是一种表明建筑构造细部的图。
为了直观地说明问题,这里做一个简单的举例:某建筑有上下两层窗户,上下窗之间的外墙厚240,其它地方为370。这个外墙可以分上、中、下绘制三个节点图。
如建施图平面截图:
节点图1:(2、3略)
扩展内容:
建筑立面图是将建筑的不同侧表面,投影到铅直 投影面上而得到的正投影图。建筑剖面图是依据建筑平面图上标明的剖切位置 和投影方向,假定用铅垂方向的切平面将建筑切开后面得到的正投影图。建筑平面图是假想在房屋的窗台以上作水平剖切后,移去上面部分作剩余部分的正投影而得到的水平剖面图。建筑工程施工图简称"施工图",是表示工程项目总体 布局,建筑物的外部形状、内部布置、结构 构造、内外装修、材料做法以及设备、施工 等要求的图样。
节点图纸也就是我们所称的大样图,节点图纸不能脱离平、立面图纸来看。一般我们看图,先建筑,后结构,先平面,后立面,而节点图纸即是设计院在平、立面上不能完整表示建筑构造,引申出来的局部放大、或者详图。
所以在你看平、立面图的时候,发现有一条直线引出的节点标注,就证明这里有节点图了,按照节点标注中的图纸编号、节点编号,找到相应的节点图,对照起来看,就能看明白设计想要表达什么意图了。
首先在平、立面图上找到节点索引,节点大样就是根据这个节点画出来的1:20(一般情况)的剖面图,只不过大样图要将做法层次画出来,并标出构造做法。所有剖到的东西也会表示出来,例如线脚、屋顶,还是遵从剖到什么表示什么,简而言之,就是放大版的剖面图。
不过有的做法是索引的,你必须还要有这本图集,再去索引或施工。
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