The air pressure in the spindle-shaped inflatable membrane can be designed according to the requirements of the span load. The air bearing elastic plate can be made of high-strength alloy steel plate, the spiral tension cable and valley cable can be made of high-strength galvanized steel noose, the spindle-shaped inflatable membrane and the ridge-valley negative Gaussian surface tension membrane can be PVDF or PTFE high-strength architectural membrane, ridge-valley type The fixed edge 8 of the negative Gaussian curved surface tension film can be made of aluminum alloy. The component size, material selection, and process design of the present invention can be determined for specific applications, including the span L, width b of the overall tension beam of the inflatable membrane, the curvature radius R1 of the air-bearing elastic plate, the lower curvature radius R2 of the air-bearing elastic plate, the spindle shape The sag height f1 of the upper surface of the inflatable membrane, the sag height f2 of the lower surface of the spindle-shaped inflatable membrane, the distance and elevation of A1-A2, the angle and elevation of Di-di, the cross-sectional size of various rods, the size of the connecting pair, and the joint connecting plate. according to different disposition manners. The inflating film integral stretching beam forms an inflating stretching integral film with various shapes such as tetragon, circular or fan shape, etc. The fixed hinged contact points at both side of the gas bearing elastic plate are anchored with the support column of buildings. The ridge vale shaped negative gauss curved surface tensile force film is the main surrounding body of the integral film, a vale cable is pressed in the center of the ridge vale shaped negative gauss curved surface tensile force film, the both ends of the vale cable are anchored to the lower part building after exerting a tensile force, which is as the steady cable of the integral film the both side of the ridge vale shaped negative gauss curved surface tensile force film are provided film fixed rims, so as to connect the fixed rims or free edges of buildings. Featuring a time-tested dome style, the Eureka Tetragon NX 3-Person Tent goes up quickly and easily so you can start enjoying your camping trip knowing. Eligible for ground shipping only.The invention relates to an inflating stretching integral film, which is formed by connecting a plurality of inflating film integral stretching beams with each other adopting a parallel, fan shaped or circular disposition manner, through ridge vale shaped negative gauss curved surface tensile force films, wherein the inflating film integral stretching beam is composed of a gas bearing elastic plate, a spindle shaped inflating film and a spiral stretching cable, the gas bearing elastic plate is fixed on the spindle shaped inflating film through the spiral stretching cable, and the inflating film is filled with overpressure air, thereby providing the stiffness of the film integral stretching beam and maintaining the shape. Eureka Tetragon HD 5-Person 3-Season Tent Set Up Camp Quickly and Get to the Fun Designed for easy assembly, the classic Tetragon is a 3-season tent perfect for family camping. This product will be shipped directly from EUREKA and will leave their warehouse in 2-3 business days. Includes our exclusive E! Media Center - an in-tent entertainment hub for quiet time or rainy days. Easy on your wallet & easy set-up - freestanding dome architecture. SEE ON AMAZON Comfort and Space With an interior floor dimension of 7 ft x 5 ft (2.13m x 1.5m) and a floor space of 35 square feet (3.25 square meters), the Tetragon NX 2 person tent fits two people comfortably in a single room. A versatile size that's a favorite of campers & festival goers who want to set-up camp quickly & get to the fun. With a durable frame and smart design, this three-season camping tent is perfect for car camping trips.
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