Dynamics of Civil Structures, Volume 2: Proceedings of the by Shamim Pakzad, Caicedo Juan

By Shamim Pakzad, Caicedo Juan

Dynamics of Civil buildings, quantity 2. complaints of the thirty fourth IMAC, A convention and Exposition on Dynamics of Multiphysical structures: From lively fabrics to Vibroacoustics, 2016, the second one quantity of ten from the convention brings jointly contributions to this significant sector of study and engineering. Th e assortment provides early fi ndings and case stories on basic and utilized features of Structural Dynamics, together with papers on:

• Modal Parameter Identifi cation

• Dynamic checking out of Civil Structures

• Human triggered Vibrations of Civil Structures

• version Updating

• Operational Modal Analysis

• harm Detection

• Bridge Dynamics

• Experimental ideas for Civil Structures

• Hybrid testing

• Vibration regulate of Civil Structures

Show description

By Shamim Pakzad, Caicedo Juan

Dynamics of Civil buildings, quantity 2. complaints of the thirty fourth IMAC, A convention and Exposition on Dynamics of Multiphysical structures: From lively fabrics to Vibroacoustics, 2016, the second one quantity of ten from the convention brings jointly contributions to this significant sector of study and engineering. Th e assortment provides early fi ndings and case stories on basic and utilized features of Structural Dynamics, together with papers on:

• Modal Parameter Identifi cation

• Dynamic checking out of Civil Structures

• Human triggered Vibrations of Civil Structures

• version Updating

• Operational Modal Analysis

• harm Detection

• Bridge Dynamics

• Experimental ideas for Civil Structures

• Hybrid testing

• Vibration regulate of Civil Structures

Show description

Read Online or Download Dynamics of Civil Structures, Volume 2: Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016 PDF

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Additional resources for Dynamics of Civil Structures, Volume 2: Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016

Example text

Hence, they can be used to non-destructively assess surface defects [7–10]. These systems emit laser pulses in defined, horizontal and vertical angular increments to rapidly measure the range, or distance, to objects within the line-of-sight of the scanner. A scan results in a quantitative three-dimensional digital representation of objects, known as a 3D point cloud, with x, y, z distances of each point referenced from the location of the scanner. The resulting 3D point cloud is highly detailed, and can be explored and analyzed virtually.

A 33 b Y X A B 154 D 110 E 110 110 N H G F 110 110 48 1 C 110 195 Column Windows Doors Beam 268 Infill 72 71 2 3 814 Fig. 3 School building at Sankhu. 5 E) at 20 km from the recording station is shown in Fig. 3a. The plan view of the structure is shown in Fig. 3b. As it can be seen in the figures, the building has a relatively simple structural system consisting of a reinforced concrete frame of seven bays on the east–west direction and two bays in the north south direction. On the façade of the building in the north side, a balcony, serving as corridor, is supported by bare RC columns and is exposed to the weather.

As elaborated upon in Sect. 3, the damage-sensitive features used in this paper are a function of the coefficients of an autoregressive-exogenous (ARX) model fit to the responses at a pair of locations on a structure. These coefficients are estimated through the use of a separate formulation of the EM algorithm from that in [16], which is largely based on that provided in [17]. The nth-order ARX model with mth-order exogenous portion is described in Eq. 1), below. 1) In Eq. 1), y(k) is the output, u(k) the input, v(k) a white noise process independent of the input with variance 1 , and y , ak , and bk the parameters to be estimated.

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