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槽钢的规格主要用高度（h ）、腿宽（b ）、腰厚度（d ）等尺寸来表示，国产槽钢规格从5 -40 号，即相应的高度为5 -40cm 。 在相同的高度下，轻型槽钢比普通槽钢的腿窄、腰薄、重量轻。18 -40 号为大型槽钢，5 -16 号槽钢为中型槽钢。 进口槽钢标明实际规格尺寸及相关标准。槽钢的进出口定货一般是在确定相应的碳结钢（或低合金钢）钢号后， 以使用中所要求的规格为主。除了规格号以外，槽钢没有特定的成分和性能系列。槽钢的交货长度分定尺、倍尺二种， 并在相应的标准中规定允差值。国产槽钢的长度选择范围根据规格号不同分为5 -12m 、5 -19m 、6 -19m 三种。 进口槽钢的长度选择范围一般为6 -15m 。槽钢的最关键一点就是槽钢两端的固定。固定方法主要有三种： 一种是在墙上用角钢做一个，并用膨胀螺丝锁在墙上，然后用槽钢固定在上面，也可以采用植筋的做法进行固定。 此方法只限于两端墙面是承重墙或者刚好有横梁经过的地方，用膨胀螺丝固定于墙上，膨胀螺丝的间隔不超过200mm。 另外一种是先在墙上打一个孔，然后把槽钢伸进墙内，并由墙体直接承担槽钢的重量。此方法只限于承重墙或者较厚的剪力墙。 另一种方法是直接竖另一条槽钢来支撑横的槽钢，竖的槽钢要固定在墙上。 The specifications of groove steel are mainly indicated by height (h), leg width (b) and waist thickness (d). The specifications of domestic groove steel range from 5-40, that is, the corresponding height is 5-40cm.At the same height, light slot steel has narrower legs, thin waist and lighter weight than ordinary slot steel. grooves 18-40 are large trough steel and grooves 5-16 are medium groove steel. Import tank steel indicates the actual specifications and dimensions and relevant standards. The import and export ordering of slot steel is generally after determining the corresponding carbon junction steel (or low alloy steel) steel number, mainly with the specifications required in use. steel has no specific composition and performance series except specification No. The delivery length of slot steel is divided into fixed ruler and double, and the tolerance is specified in the corresponding standard. The length selection range of domestic tank steel is divided into 5-12m, 5-19m and 6-19m according to the specification number. The length selection range of the inlet groove steel is generally 6-15m. The most critical point of groove steel is the fixation of both ends of groove steel.There are three main kinds of fixation methods: one is to make one with Angle steel on the wall, lock it on the wall with the expansion screw, and then be fixed on it with slot steel, which can also use the method of tendon fixation.This method is limited to the load-bearing wall or the beam passing, fixed to the wall with expansion screws, the interval of expansion screws shall not exceed 200mm. The other is to make a hole in the wall, and then extend the groove steel into the wall, and the wall directly bear the weight of the steel.This method is limited to load-bearing walls or thick shear walls. Another method is to erect another trough steel directly to support the horizontal trough steel, which is to be fixed to the wall.
门架建筑槽钢现货
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建筑幕墙支撑钢
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