In factory construction, how to calculate box purlins is interested by many people because box purlins are an important item in the structure of the house. With the advantage of box steel purlins is to ensure firmness, certainty and balance. An important role in the sustainability of the roof.
Box steel purlins are made from steel with rectangular and square box-shaped structures. Steel material has the advantage of high hardness and durability and good bearing capacity. Composite steel purlins are used throughout the construction of the factory. Box purlins are manufactured by advanced technology and modern lines with outstanding durability. The box purlin has the function of reducing the weight of the roof while the bearing capacity of the coating material is still very good.
The weight of box steel purlins is calculated according to the weight of 1 box steel bar. Based on the length, width and thickness of the steel we can calculate in the corresponding box steel purlin weight.
Parameters are important to help contractors and design engineers calculate the amount of purlins needed to execute the project correctly. The place that produces box steel will always have a table of purlin weights from which it is possible to calculate the volume of purlins to be used.
The calculation of box steel purlins needs to be reasonable for the roofing process to proceed smoothly. Carelessness will affect the progress of the work and generate unnecessary costs.
The most appropriate distance of steel purlins with corrugated iron roofs
Each different truss frame will have different purlin spacing. For 2-layer truss systems, the best truss spacing will be about 1100-1200mm
With the 3-rafter system, the best truss distance is the distance to calculate the steel purlins of the corrugated iron roof
The first bar is birth, the second bar is the pillar, the third bar dissolves, and the fourth bar is the bar of cessation. The fifth bar was born. And continue vice versa the sixth bar is the pillar, the seventh bar is dissolution, the eighth bar is cessation.
From that, the formula for calculating the bar and cylinder can be derived: SINH = [4 x n +1]. Where n represents the number of repetitions to produce a nice number of BIRTH, TURN.
First of all, you need to see how much the investor's birth year is and what it belongs to. From there to check the Direct - Age table and calculate which Landlord belongs to. Then compare by equals if mutuality is good and opposite is bad.
Standard slope of box steel purlin
The slope of the roof is a fundamental factor to capture the affirmation between the purlins of the corrugated iron. Usually, the slope of the roof will be determined depending on each project. The slope is properly calculated by the design engineers. Guarantee a minimum of 15% for all similar works.
Calculating the slope of the roof is extremely important. Prepare materials and calculate accordingly. The slope of the corrugated iron roof depends on the size of the roof to be drained, the level of rainwater and the overall aesthetic of the building. Purlin spacing is 70-90cm with a layer of heat-resistant foam corrugated iron is suitable.
