Engineer's Report: Seismic Performance Evaluation and Tire Construction Analysis

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Michael Reynolds. Engineer's Report: Seismic Performance Evaluation and Tire Construction Analysis

Introduction

Section I. Relevant letters

Section II. Overview

Section III. Buckhorn Geotech - Consulting Engineers & Geologists 1990 evaluation of the Dennis Weaver Project

Section IV. F.E.M.A. Evaluation (Federal Emergency Management Agency)

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This engineering analysis is a compilation of studies and calculations conducted between 1990 and 1993 by Thomas E. Griepentrog P.E of Buckhorn-Geotech, Consulting Engineers and Geologists of Montrose Colorado and Kenneth D. DeLapp of DeLapp Engineering in Santa Fe, New Mexico. This report is a thorough analysis of all structural aspects of the Earth-rammed Tire Walls of the Earthship design by Architect Michael Reynolds.

This booklet also includes relevant parts of a F.E.M.A (Federal Emergency Management Agency) evaluation that researches many types of alternative building. Only the portion specific to Earthships is included here.

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The following information must be determined before construction in order to adapt each Earthship to its particular site:

1. Soil analysis: It is recommended that a licensed soil engineer be brought in to insure that your building site is suitable for construction of an Earthship. Minimum bearing capacity can be determined using the information found in Section II. This figure will vary based on the design snow load for your location. Actual bearing capacity at the site can be determined by the soils engineer. See section IV.

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