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水泥假山上的荷载作用是什么?

  水泥假山的荷载和作用是什么?以下是假山厂家为您介绍的。
  What are the loads and functions of cement rockery? The following is the introduction of rockery manufacturer for you.
  1、由于水泥假山表面一般不允许人、维修、清洗,也由专业假山公司负责,实际工程设计时,一般不考虑活荷载。在非降雪地区,习惯采用0.5或0.60 kN/m 2垂直荷载来检测假山是否会因降雨而产生水;即检查在此荷载作用下,变形后的水泥假山轮廓是否存在近似圆形区域。
  1. Because the surface of cement rockery is generally not allowed to be manned, repaired and cleaned, and is also responsible for by professional rockery companies, live loads are generally not considered in actual engineering design. In non-snowfall areas, it is customary to use 0.5 or 0.60 kN/m 2 vertical load to detect whether the rockery will produce water due to rainfall; that is to say, to check whether there is an approximate circular area in the contour of the deformed cement rockery under this load.
  2、在雪域,雪对水泥假山的影响不容忽视。由于水泥假山多以负高斯曲率曲面形式存在,结构上的雪荷载分布普遍不均匀;在计算雪荷载时,应根据不同的曲线形状和曲率的变化来调整雪荷载的分布,以考虑雪荷载分布不均可能带来的不利影响。假山坡度大于0.4时,雪会自动滑下而不堆积。风对雪纹的影响也需要注意。研究表明,当低温风速达到15 ~ 20m/s时,假山表面几乎没有积雪。但如果假山表面有“死”的部分,则很容易在这些地方形成深厚的积雪。此外,对于一些斜跨比较低的假山结构,雪的作用会使结构表面趋于平整,甚至出现局部凹陷,必须谨慎处理。
  2. In the snow area, the influence of snow on cement rockery can not be ignored. Because most of the cement rockeries are in the form of negative Gauss curvature surface, the distribution of snow load on the structure is generally uneven. When calculating snow load, the distribution of snow load should be adjusted according to the change of curve shape and curvature to consider the possible adverse effects of uneven distribution of snow load. When the slope of the rockery is greater than 0.4, the snow will slide down automatically without accumulating. The effect of wind on the snow pattern should also be noted. The results show that when the low temperature wind speed reaches 15-20 m/s, there is almost no snow on the surface of the rockery. But if there are "dead" parts on the surface of the rockery, it is easy to form deep snow in these areas. In addition, for some rockery structures with relatively low inclined spans, the effect of snow will make the surface of the structure tend to be flat, or even local depressions, which must be handled carefully.
济南假山制作
  3、风作用或根据自定义风荷载是水泥假山设计中的主要荷载。风荷载计算需要确定风载系数和风振系数这两个重要参数。由于水泥假山的形状复杂,而各国的荷载规范所能提供的风载流子类型系数是非常有限的,水泥拉线的形状复杂,一般通过国内外风洞试验来确定形状系数。预张力的分布和大小与假山表面的形状有关,由形状的发现来决定。在内力分析中,所有的载荷组合都涉及预张力。
  3. Wind action or custom-defined wind load is the main load in the design of cement rockery. Wind load coefficient and wind vibration coefficient are two important parameters for wind load calculation. Because the shape of cement rockery is complex, and the type factor of wind carriers provided by load codes of various countries is very limited, and the shape of cement cable is complex. Generally, the shape factor is determined by wind tunnel tests at home and abroad. The distribution and size of pre-tension are related to the shape of rockery surface, which is determined by the shape discovery. In internal force analysis, all load combinations involve pre-tension.
  4、支架和边界构件的变形会导致假山表面应力重新分布。由于假山本身很重,地震的影响不是很明显。在温度变化较大的区域,还要考虑热胀冷缩对假山应力的影响以及高温对焊接强度的影响。
  4. Deformation of bracket and boundary member will lead to stress redistribution on the surface of rockery. Because the rockery itself is very heavy, the impact of the earthquake is not very obvious. In the region where the temperature varies greatly, the influence of thermal expansion and contraction on the stress of rockery and the influence of high temperature on the welding strength should also be considered.
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