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RISPrediction Models for Modal Parameters of Supertall Buildings Based on Field Measurements
Publisher: ASCE
Abstract: The dynamic properties of seven supertall buildings that are currently among the world’s 30 tallest are evaluated using field measurements collected during tropical cyclone events. In this study, the natural frequencies ...
An Automatic Modal Identification Framework for Civil Structures Based on Deep Learning and Frequency-Damping Heatmaps
Publisher: American Society of Civil Engineers
Abstract: Real-time estimation of modal parameters from dynamic responses is important for structural health monitoring of civil structures, facilitating the rapid development of automatic modal identification algorithms. However, ...
Dynamic Behavior of Supertall Building with Active Control System during Super Typhoon Mangkhut
Publisher: ASCE
Abstract: This paper presents observations of structural dynamic characteristics and wind-induced responses of a 600-m-high skyscraper installed with an active tuned mass damper (ATMD) system during super typhoon Mangkhut. The ...
Modal Identification of Civil Structures via Stochastic Subspace Algorithm with Monte Carlo–Based Stabilization Diagram
Publisher: ASCE
Abstract: The stochastic subspace algorithm is one of the most widely used structural identification techniques, which is generally involved with the stabilization diagram for estimating modal parameters. However, the conventional ...
Reconstruction of Extreme Wind Pressures on Cladding of a Skyscraper during Super Typhoon Mangkhut
Publisher: ASCE
Abstract: This paper proposes a novel strategy based on field measurement, wind tunnel tests, and artificial neural network (ANN) for reconstructing the wind pressures on cladding of high-rise buildings and applies it to reconstruct ...
Noncontact Operational Modal Analysis of a High-Rise Building Based on an Interferometric Radar System and Combined Modal Estimation Scheme
Publisher: ASCE
Abstract: The dynamic characteristics of large-scale civil structures are generally evaluated by performing operational modal analysis based on ambient vibration records measured by contact sensors, e.g., accelerometers. However, ...
Monitoring of Near-Surface Winds and Wind Pressures on an Instrumented Low-Rise Building during Super Typhoon Rammasun
Publisher: American Society of Civil Engineers
Abstract: This paper presents the results of observed near-surface winds and wind-induced pressures on the gable roof of an instrumented low-rise building. The observations were made during the strongest typhoon to make landfall in ...
Investigation of the Aerodynamic Forces on a 600-m-High Supertall Building by Field Measurements and Wind Tunnel Test
Publisher: ASCE
Abstract: This paper investigates the aerodynamic forces on a 600-m-high supertall building based on field measurements during Super Typhoon Mangkhut and wind tunnel test on a 1∶500 scaled model of the monitored building. The local ...
Displacement Estimation of a Skyscraper during Super Typhoon Mangkhut Based on Limited Measurements of Accelerations and Strains
Publisher: ASCE
Abstract: This paper develops a horizontal displacement estimation framework for wind-excited high-rise buildings based on limited measurements of accelerations and strains and applies it to reconstruct the displacement responses ...
Recovery of Long-Term Missing Wind Velocity Data for Structural Health Monitoring Based on Deep Learning and Meteorological Databases
Publisher: American Society of Civil Engineers
Abstract: Wind environment monitoring is of vital importance for structural health monitoring (SHM). However, wind velocity records in SHM systems sometimes suffer from data loss owing to monitoring equipment faults, transmission ...