Benefits of Bias Pro Systems

Broadwell Air Dome Stadium uses 3 layers of membrane material, which integrated with Broadwell patent Air Tightness Technology and Electronically controlled Air Interactive system, creating a premium spaces to save energy, This Air Dome structure has Great Thermal Insulation Feature, which will greatly save costs for energy consumption and it is cold-bridge proof.   

The top of the membrane material adopts transparent design, which allows daylight to penetrate through to save energy consumption.

Air Inflated Structures will be exposed to danger if it is not equipped with the bias pro system, because the forces can not be transferred to cable system or other places, all the weight will be pressured on the membrane material, which may destroy the integrity of the Air Dome structure.

What will make sure the security of Air Inflated Structure? If Air inflated structure is not equipped with Bias Pro systems, what will happen to the the structure?

Forces are being concentrated, the load on the membrane material will be much higher; Tensile forces which imposed on the membrane material will be greater, there is no additional protection to make sure the stability of the Air Inflated structure, therefore without reinforcement of Bias Pro Systems, Air Inflated structure does not have additional protection which may cause significant financial loss(Possible deflation) .The effect of Bias Pro will reduce the load weight on membrane material. This system will transfer partial weight on the structure to Bias Pro System to protects the structure from getting deflated.

Let me give you an example: For Air Dome which does not equipped with Bias Pro Systems, when width(span) reaches 35.966 meters,the load weight on membrane Fabric reaches 2574.5KG/M;Pressure on membrane material will be so big which will possible lead to catastrophic incidents . For Air Dome equipped with Bias Pro Systems, when width( Span) is the same, the load force laid on Fabric will be reduced to 186,6KG/M. Bias Pro system will be able to evenly distribute the forces which will release the burden on the membrane material, which will  improving wind & snow resistant feature. Our Fabric Material covers entire structure. Bias Pro can effectively distribute the load force on membrane caused by rise of the internal pressure.(The chart below provides details about the difference between Air Dome structure with Bias Pro and Air Dome structure without Bias Pro system)   

With Cable Harness system , the forces are able to be evenly distributed on membrane material , this chart has shown how cable harness reduce stress on membrane material and transfer it to Bias Pro System.

Here is how stress is being calculated, these Data and design procedures developed in the same report are applied to calculate the maximum fabric stresses.

The radius of the structure which is needed in the calculation is obtained from width and height, Max. Dimensionless circumferential stress ,Maximum dimensionless longitudinal stress .

Two purposes are served when Air Supported Structure is reinforced with a cable harness:

The fabric load can be reduced by an order of magnitude.

The reinforcing cables are structural members which must be selected in accordance with the loads carried by them.