Results 11 to 20 of about 28,075 (149)

Effects of Aftershocks on the Seismic Performances of Reinforced Concrete Eccentric Frame Structures

open access: yesApplied Sciences, 2023
Strong aftershocks have the potential to cause accumulated damage in structures, a feature which has been reported in post-earthquake reconnaissance studies, particularly for eccentric or irregular structures.
Pengyu Sun, Weiping Wen, Siwei Zhang
doaj   +1 more source

Structural Crack Detection Using DPP-BOTDA and Crack-Induced Features of the Brillouin Gain Spectrum

open access: yesSensors, 2020
Structural damage generally initiates in the form of structural cracks. Thus, developing efficient crack detection techniques is of great importance for the structural health monitoring. In this paper, a new crack identification method is proposed, which
Dongyu Zhang   +4 more
doaj   +1 more source

Experimental Investigation of Unconfined Compressive Properties of Artificial Ice as a Green Building Material for Rinks

open access: yesBuildings, 2021
The construction of a prefabricated ice rink has recently attracted considerable interest owing to its detachability, short building period, and high cooling efficiency, among other benefits. Characterizing the compressive properties of an artificial ice
Wenyuan Zhang   +4 more
doaj   +1 more source

Dynamic Forces of Swaying Human and Responses of Temporary Demountable Grandstand Based on Experiment and Simulation

open access: yesShock and Vibration, 2018
Modern temporary demountable structures must be designed to withstand the dynamic forces which generated by crowd occupants. The human forces and that cause the dynamic responses of structure have become an important research topic.
Lin He, Jian Yuan, Feng Fan, Cong Liu
doaj   +1 more source

Numerical Investigations of Snowdrift Characteristics on Roofs with Consideration of Snow Crystal Morphological Features

open access: yesBuildings
Under extreme snowfall conditions, wind-induced snow drifting can lead to the redistribution of snow accumulation on roofs, resulting in localized overloads that pose a serious threat to building structural safety.
Guolong Zhang   +5 more
doaj   +1 more source

Research on Snow Load Characteristics on a Complex Long-Span Roof Based on Snow–Wind Tunnel Tests

open access: yesApplied Sciences, 2019
A considerable number of studies have been carried out for predicting snowdrifts on roofs over the years. However, few studies have focused on snowdrifts on complex long-span roofs, as the complex shape and fine structure pose significant challenges.
Guolong Zhang   +3 more
doaj   +1 more source

Retrofit Strategies against Progressive Collapse of Steel Gravity Frames

open access: yesApplied Sciences, 2020
Two retrofit strategies, aiming at increasing the collapse resistance of simple connections by adding seat angles and steel plates with long-slotted holes, are proposed in order to address the vulnerability of steel gravity frames under column loss ...
Lei Zhang, Honghao Li, Wei Wang
doaj   +1 more source

Modeling of the Snowdrift in Cold Regions: Introduction and Evaluation of a New Approach

open access: yesApplied Sciences, 2019
Unbalanced, or non-uniform, snow loads caused by snow drifting or sliding in cold regions with heavy snowfalls, can be a serious problem for the building industry. However, the methods for predicting snow distribution still need to be improved.
Mengmeng Liu   +3 more
doaj   +1 more source

Identifying Optimal Intensity Measures for Predicting Damage Potential of Mainshock–Aftershock Sequences

open access: yesApplied Sciences, 2020
Large earthquakes are followed by a sequence of aftershocks. Therefore, a reasonable prediction of damage potential caused by mainshock (MS)–aftershock (AS) sequences is important in seismic risk assessment.
Zhou Zhou, Xiaohui Yu, Dagang Lu
doaj   +1 more source

Experimental Study on Shear Strength of Roof–Snow Interfaces for Prediction of Roof Snow Sliding

open access: yesBuildings
The sliding of roof snow may result in surcharges of snow load on lower roofs or the injury of pedestrians on the ground. It is therefore of great significance to study the mechanism of roof snow sliding, such that prevention or control measures can be ...
Xinli Cao   +4 more
doaj   +1 more source

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