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151855

Natural Frequencies and Modes of Vibrations for Cable Roofs.

Article

Last updated: 04 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

Civil Engineering

Abstract

The free vibration mode shapes have certain special properties which are very useful in structural dynamic analysis. For structures with a large number of joints , it is often necessary to reduce the number of degrees of freedom hy simplifying the structure or by condensing the stiffness and mass matrices. Three popular methods of condensation applied in dynamic structures are presented. The natural frequencies and corresponding modal shapes for convex, eoneave and concave-convex cable roofs are studied. Also, effect of initial tensions in cables, both sag and rise to span ratios, distance between vertical ties, and symmetric and asymmetric of loads on the frequencies for all three types of roofs are outlined . All computer programs for construction of overall stiffness and mass matrices, solution of free vibration equation using exact technique and eondensation are constructed by the author. 

DOI

10.21608/bfemu.2021.151855

Authors

First Name

M.

Last Name

Naguib

MiddleName

-

Affiliation

Structural Engineering Department., Faculty of Engineering., EL.Mansoura University., Mansoura., Egypt .

Email

-

City

Mansoura

Orcid

-

Volume

21

Article Issue

2

Related Issue

22285

Issue Date

1996-06-01

Receive Date

1996-04-11

Publish Date

2021-06-01

Page Start

25

Page End

42

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 21_Issue 2_Pages 25-42.pdf

PDF . 215.9kB

Link

https://bfemu.journals.ekb.eg/article_151855.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=151855

Order

3

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

Natural Frequencies and Modes of Vibrations for Cable Roofs.

Details

Type

Article

Created At

22 Jan 2023