Design of fiberglass-reinforced plastic (FRP) stacks (FRP) by ASCE/SEI 52-10

By ASCE/SEI 52-10

ASCE/SEI average 52-10 applies to fiberglass-reinforced plastic (FRP) stacks these stacks the place the first helping shell is made up of FRP. layout of Fiberglass-Reinforced Plastic (FRP) Stacks outlines the concerns that has to be made for either the mechanical and structural layout; emphasizes what attention has to be taken for wind- and seismic-induced vibrations; offers directions for ultraviolet defense and choice of fabrics; states the necessities for lights and lightning safety established upon current development and federal codes; supplies the necessities for mountain climbing and entry established upon present Occupational safeguard and overall healthiness management (OSHA) criteria; emphasizes the $64000 components relating to fabrication and development; and descriptions components requiring upkeep and inspection following preliminary operation

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Additional resources for Design of fiberglass-reinforced plastic (FRP) stacks (FRP) Stacks

Example text

Consequently, any examination shall include an assessment of the capability of the stack support legs, the support steel, and the guides to transmit thermally induced friction forces and resist associated thermal deformations. 4 Operations Records Many plants maintain extensive records of stack structural problems, behavior problems, damage, and associated structural repairs. Repairs of stack accessories, such as expansion joints, dampers, and control linkages, may be indicative of a problem within the stack structure or with its arrangement.

Where installation conditions (even for a short, unbroken length) require that adjacent sections be offset, landing platforms shall be provided at each offset. The total depth of the platform shall provide a minimum space of 30 in. from the center of the ladder on the climbing side. The width of the platform shall not be less than 30 in. The minimum design live load for rest landings is 50 lb͞ft2. 4 Catwalks between Stack and Adjacent Structures When a catwalk is provided, added catwalk connections to stack or structure shall be such that there is no load transferred in any direction between the stack and the structure.

Additional damping may be gained from inclusion of the foundation system or aerodynamic methods, which disrupt vortex formation although aerodynamic methods may reduce damping. 01 has been observed for FRP stacks. 2 when justified by results of testing or analysis. Consideration should be given to stacks supported on steel frames. Aerodynamic damping shall also be considered. The aerodynamic damping value, βa, is calculated as follows: ␤a ෇ Cf␳DV Z 4␲ man1 (4-7) where ma ෇ mass per unit length of the top 1͞3 of the stack.

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