| 1. |
- Abdeljaber, Osama, et al.
(författare)
-
Dynamic Testing of a Laboratory Stadium Structure
- 2016
-
Ingår i: Geotechnical and Structural Engineering Congress 2016. - Reston, VA : American Society of Civil Engineers (ASCE). - 9780784479742 ; , s. 1719-1728
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Studies with large physical models are a vital link between the theoretical work and field applications provided that these models are designed to represent real structures where various types and levels of uncertainties can be incorporated. While comprehensive analytical and laboratory joint studies are ongoing at Qatar University, University of Central Florida and University of Alberta, this paper presents the initial findings of dynamic testing at Qatar University. A laboratory stadium structure (grandstand simulator) has been constructed at Qatar University. Capable of housing thirty spectators, Qatar University grandstand simulator is arguably the largest laboratory stadium in the world. The structure is designed in a way that several different structural configurations can be tested in laboratory conditions to enable researchers to test newly developed damage detection algorithms. The study presented in this paper covers the finite element modeling and modal testing of the test structure.
|
|
| 2. |
- Abdeljaber, Osama, et al.
(författare)
-
Quantification of Structural Damage with Self-Organizing Maps
- 2016
-
Ingår i: Structural Health Monitoring, Damage Detection & Mechatronics. - Cham : Springer. - 9783319299556 - 9783319299563 ; , s. 47-57
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- One of the main tasks in structural health monitoring process is to create reliable algorithms that are capable of translating the measured response into meaningful information reflecting the actual condition of the monitored structure. The authors have recently introduced a novel unsupervised vibration-based damage detection algorithm that utilizes self-organizing maps to quantify structural damage and assess the overall condition of structures. Previously, this algorithm had been tested using the experimental data of Phase II Experimental Benchmark Problem of Structural Health Monitoring, introduced by the IASC (International Association for Structural Control) and ASCE (American Society of Civil Engineers). In this paper, the ability of this algorithm to quantify structural damage is tested analytically using an experimentally validated finite element model of a laboratory structure constructed at Qatar University.
|
|
| 3. |
- Celik, Ozan, et al.
(författare)
-
Recent issues on stadium monitoring and serviceability : A review
- 2016
-
Ingår i: Dynamics of Coupled Structures. - Cham : Springer. - 9783319297620 - 9783319297637 ; , s. 411-416
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Unlike most of civil engineering structures whose static and dynamic responses are estimated accurately through several codes and guidance, stadiums reserve a distinctive place especially when it comes to their dynamic behavior. This difference takes its source from several factors such as influence of crowd size, motion and slenderness of the structure. The most noticeable form of this difference shows itself as excessive vibration levels which is actually a threat to the serviceability of these structures. Eventually, it becomes essential to carefully evaluate several steps of this particular problem starting from correct representation of crowd activity through accurate loadings and human-structure interaction models to arranging acceptable vibration serviceability limits. This publication intends to point out the newly developed techniques and discovered issues on several stages of the problem during the last decade.
|
|
