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Dynamic analysis of blast load of co...

Rodgers, Richard Rudolph.

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Dynamic analysis of blast load of coupled shear walls on flexible foundations.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Dynamic analysis of blast load of coupled shear walls on flexible foundations./
Author:	Rodgers, Richard Rudolph.
Description:	279 p.
Notes:	Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 1054.
Contained By:	Dissertation Abstracts International66-02B.
Subject:	Engineering, Civil. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3164218
ISBN:	0496987720

Dynamic analysis of blast load of coupled shear walls on flexible foundations.
Rodgers, Richard Rudolph.

Dynamic analysis of blast load of coupled shear walls on flexible foundations. - 279 p.

Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 1054.

Thesis (Ph.D.)--The University of Alabama in Huntsville, 2005.

An approximation technique is developed to compute the natural frequencies and mode shapes of coupled shear walls, which are on fixed or flexible foundations. This technique is extended to compute the deflection dynamics of coupled shear wall systems that are laterally loaded by an impulse load. The impulse load is the Mach stem of a blast wave generated by an above ground explosion. The Mach stem height is equal to the height of the coupled shear walls. The developed equations of motion and boundary conditions are derived using Hamilton's principle. The Ritz-Galerkin technique is used to develop matrix eigenvalue equations for computing the mode shapes and natural frequencies. A modal analysis, of infinite order, is chosen to solve the dynamic deflection equations. In order to uncouple the equations of motion, which describe the dynamics of the coupled shear wall system, it was necessary to derive two new orthogonality relations. The uncoupled equations are analytically solved using Duhamel's integral. Using the shape functions computed in the free vibration case, a truncated modal solution for the lateral and longitudinal deflections is derived. Using MATLAB, a program was written, which provides all computations and plots of both the shape functions and dynamic solutions. An example was presented to verify the model and to show the application of this technique.

ISBN: 0496987720Subjects--Topical Terms:

783781
Engineering, Civil.

Dynamic analysis of blast load of coupled shear walls on flexible foundations.
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100 1 $a Rodgers, Richard Rudolph. $3 1903411
245 1 0 $a Dynamic analysis of blast load of coupled shear walls on flexible foundations.
300 $a 279 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-02, Section: B, page: 1054.
500 $a Chair: Houssam A. Toutanji.
502 $a Thesis (Ph.D.)--The University of Alabama in Huntsville, 2005.
520 $a An approximation technique is developed to compute the natural frequencies and mode shapes of coupled shear walls, which are on fixed or flexible foundations. This technique is extended to compute the deflection dynamics of coupled shear wall systems that are laterally loaded by an impulse load. The impulse load is the Mach stem of a blast wave generated by an above ground explosion. The Mach stem height is equal to the height of the coupled shear walls. The developed equations of motion and boundary conditions are derived using Hamilton's principle. The Ritz-Galerkin technique is used to develop matrix eigenvalue equations for computing the mode shapes and natural frequencies. A modal analysis, of infinite order, is chosen to solve the dynamic deflection equations. In order to uncouple the equations of motion, which describe the dynamics of the coupled shear wall system, it was necessary to derive two new orthogonality relations. The uncoupled equations are analytically solved using Duhamel's integral. Using the shape functions computed in the free vibration case, a truncated modal solution for the lateral and longitudinal deflections is derived. Using MATLAB, a program was written, which provides all computations and plots of both the shape functions and dynamic solutions. An example was presented to verify the model and to show the application of this technique.
590 $a School code: 0278.
650 4 $a Engineering, Civil. $3 783781
650 4 $a Engineering, Mechanical. $3 783786
650 4 $a Engineering, Nuclear. $3 1043651
690 $a 0543
690 $a 0548
690 $a 0552
710 2 0 $a The University of Alabama in Huntsville. $3 1017884
773 0 $t Dissertation Abstracts International $g 66-02B.
790 1 0 $a Toutanji, Houssam A., $e advisor
790 $a 0278
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3164218