Reinforced concrete and metal sandwich board how much difference
Light steel plant roof static load can be divided into the following . the roof for the single-layer + cotton insulation, 0.20KN / M. the roof for the double board + insulation cotton, 0.25KN / M. the roof for the foam sandwich panels, if 50 thick, 0.3KN / M2 specific calculation, assuming purlin per meter specific gravity of . the distance is 1.. then converted to 7 / 1.5 = 5 kg or so insulation cotton generally in 1 kg, pull the sub-component 2 kg, single Floor panel 0.5 thick -0.5 * 7.85 = 4 kg then the roof of a single board + insulation cotton, constant load of 5 +1 +2 +4 = 12 kg per square meter of the actual design time to enlarge the point, take a 0.. Otherwise your trial is also very sad.
Tower crane driver, scaffolding type of work, all kinds of welding workers
JGJ130 has regulations. Not more than 0.4L, and not more than 500mm
