How to make stairs more beautiful

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Stair treads are also called steel ladders. According to the installation method, they can generally be divided into two types: welding and screw fixing. If they are directly welded to the keel and do not need to add side panels of the tread, it will be relatively Relatively economical and durable but not easy to dismantle. Bolt-fixed step boards require thickened side panels on both sides, and holes are drilled in the side panels. The installation is directly fixed with bolts, and can be recycled and reused.
Our factory can customize steel ladder products of various specifications according to the actual needs of users. They can be made into various sizes using any type of steel grating to match the corresponding stairs. However, from an economic perspective, we recommend Try to use the dimensions we recommend. The steel ladder treads produced by the company can be divided into four forms according to whether there is a front guard plate and the connection with the ladder beam, expressed as,.
From an economic point of view, it is recommended to use modular width series as much as possible, and the series should use equal multiples of lengths such as equal.
Tolerance width and length of stair treads. In addition, we can provide stair treads with different anti-slip front guards, the sizes of which can be specified as required. Generally, we recommend using the following sizes of front guards. Regarding the calculation method of the steel ladder, how to calculate the steel ladder? The calculation method can be calculated by treating the tread plate as a simply supported inclined beam. First, the above load, dead load and live load must be calculated, and then the one-eighth simply supported bending moment formula , one-half shear force formula, to find the bending moment and shear force. We note that the uniform force here needs to be decomposed into two components because the step board is tilted. If we are parallel to the step board, the step will be compressed. , which is beneficial to the steps, is not considered in the design. Only the force that causes the steps to bend is considered in the structure. Another force perpendicular to the steps is to bend the steps. Then according to the concrete theoretical formula or the concrete structure calculation chart, follow the routine and directly find the bottom reinforcement of the slab. After finding it, add the distributed structural steel bars. Since the steps are calculated as simply supported, in fact the steps and the platform beam are integrally connected, so structural negative reinforcement is usually added to the support. One end of the negative reinforcement is hooked into the stair beam, and the other end extends into a quarter of the stair slab. or one third of the tread span. Treads are not included in the plate thickness, but must be included when calculating dead loads.
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