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2004GMC Paper

Design Case Study: Foundation for an 8100 HP High-Speed Reciprocating Compressor

Pete Harrell, PE - Southwest Research Institute

Unit Packaging/Station Design

This paper presents the process of designing a concrete foundation for an 8,100 HP reciprocating compressor, driven by a natural gas-fueled four-cycle engine at 750 RPM. Such high-speed compressors are typically skid-mounted, but to provide the lowest possible vibration and increase machinery reliability, the decision was made to mount this large compressor directly on a concrete block. The relationship among soil properties, pile sizing, block size, geometry, and foundation dynamics is discussed as are foundation block details, concrete strength, rebar placement, anchor bolt detail, compressor mounting and alignment considerations. The predicted response of the compressor and engine to anticipated dynamic forces is presented.

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