Diseño sismico de tanques

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CECW-ET Engineer Manual 1110-2-6050

Department of the Army

EM 1110-2-6050 30 June 1999

U.S. Army Corps of Engineers
Washington, DC 20314-1000

Engineering and Design RESPONSE SPECTRA AND SEISMIC ANALYSIS FOR CONCRETE HYDRAULIC STRUCTURES

Distribution Restriction Statement
Approved for public release; distribution is unlimited.

EM 1110-2-6050 30 June 1999

US Army Corps ofEngineers

ENGINEERING AND DESIGN

Response Spectra and Seismic Analysis for Concrete Hydraulic Structures

ENGINEER MANUAL

CECW-ET
Manual No. 1110-2-6050

DEPARTMENT OF THE ARMY U.S. Army Corps of Engineers Washington, DC 20314-1000

EM 1110-2-6050

30 June 1999

Engineering and Design RESPONSE SPECTRA AND SEISMIC ANALYSIS FOR CONCRETE HYDRAULIC STRUCTURES
1. Purpose. Thismanual describes the development and use of response spectra for the seismic analysis of concrete hydraulic structures. The manual provides guidance regarding how earthquake ground motions are characterized as design response spectra and how they are then used in the process of seismic structural analysis and design. The manual is intended to be an introduction to the seismic analysis of concretehydraulic structures. More detailed seismic guidance on specific types of hydraulic structures will be covered in engineer manuals and technical letters on those structures. 2. Applicability. This manual applies to all USACE Commands having responsibilities for the design of civil works projects. 3. Scope of Manual. Chapter 1 provides an overview of the seismic assessment process for hydraulicstructures and the responsibilities of the project team involved in the process, and also briefly summarizes the methodologies that are presented in Chapters 2 and 3. In Chapter 2, methodology for seismic analysis of hydraulic structures is discussed, including general concepts, design criteria, structural modeling, and analysis and interpretation of results. Chapter 3 describes methodology for developingthe earthquake ground motion inputs for the seismic analysis of hydraulic structures. Emphasis is on developing response spectra of ground motions, but less detailed guidance is also provided for developing acceleration time-histories. 4. Distribution Statement. FOR THE COMMANDER: Approved for public release; distribution is unlimited.

RUSSELL L. FUHRMAN Major General, USA Chief of Staff CECW-ET
Manual No. 1110-2-6050

DEPARTMENT OF THE ARMY U.S. Army Corps of Engineers Washington, DC 20314-1000

EM 1110-2-6050

30 June 1999

Engineering and Design RESPONSE SPECTRA AND SEISMIC ANALYSIS FOR CONCRETE HYDRAULIC STRUCTURES
Table of Contents
Subject Paragraph Page

Chapter 1 Introduction Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . Responsibilities of Project Team . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overview of Seismic Assessment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Summary of Seismic Analysis of Concrete Hydraulic Structures . . . . . . . . . . . . . . . Summary of Development of Site-Specific Response Spectra for Seismic Analysis ofStructures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9

1-1 1-1 1-1 1-1 1-1 1-2 1-4 1-7 1-8

Chapter 2 Seismic Analysis of Hydraulic Structures Introduction . . . . . . . . . . . . . . ....
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