Results 11 to 20 of about 2,833 (193)

Experimental Study on Seismic Behavior of Precast Bolt-Connected Steel-Members End-Embedded Concrete (PBSEC) Beam-Column Connections

open access: yesBuildings, 2022
With the rapid development and research of precast concrete frame structures, it is not difficult to find that the structural form and seismic performance of dry-connected precast joints have always been the focus of research.
Zhun Wang, De-Cheng Feng, Gang Wu
doaj   +1 more source

Seismic Fragility Analysis of the Reinforced Concrete Continuous Bridge Piers Based on Machine Learning and Symbolic Regression Fusion Algorithms

open access: yesShock and Vibration, 2021
In the fragility analysis, researchers mostly chose and constructed seismic intensity measures (IMs) according to past experience and personal preference, resulting in large dispersion between the sample of engineering demand parameter (EDP) and the ...
Hanbo Zhu, Changqing Miao
doaj   +1 more source

Crack detection for concrete bridges with imaged based deep learning

open access: yesScience Progress, 2022
Within the framework of intelligent bridge detection, a number of crack detection methods based on image processing techniques have been implemented. In this study, a combined novel approach with deep learning of a single shot multibox detector (SSD) and
Chunfeng Wan   +6 more
doaj   +1 more source

Characteristics of Extreme Wind Pressure on the Open Prefabricated Spatial Grid Structure of Evergrande Stadium

open access: yesBuildings, 2022
Large-span open prefabricated spatial grid structures are characterized by light mass, high flexibility, low self-oscillation frequency, and low damping, resulting in wind-sensitive structures.
Gang Chen   +4 more
doaj   +1 more source

Study on Seismic Performance of a Stiffened Steel Plate Shear Wall with Slits

open access: yesShock and Vibration, 2015
To determine the force mechanism for the steel plate shear wall with slits, the pushover analysis method was used in this study. An estimated equation for the lateral bearing capacity which considered the effect of edge stiffener was proposed.
Jin-yu Lu   +3 more
doaj   +1 more source

Application and Analyzation of the Vision-Based Structure Model Displacement Measuring Method in Cassette Structure Shaking Table Experiment

open access: yesAdvances in Civil Engineering, 2020
In the shaking table test of large cassette structure, story drift is an essential set of experimental data. The traditional method of displacement measurement is limited to problems such as necessary full contact with the structure model for ...
Wang Yanhua   +4 more
doaj   +1 more source

Definition of Yield Seismic Coefficient Spectrum Considering the Uncertainty of the Earthquake Motion Phase

open access: yesApplied Sciences, 2019
Earthquake engineers are typically faced with the challenge of safely and economically designing structures in highly uncertain seismic environments. Yield strength demand spectra provide basic information for the seismic design of structures and take ...
Adam A. Abdelrahman   +3 more
doaj   +1 more source

Frequency-Based Cable Tension Identification Using a Nonlinear Model with Complex Boundary Constraints

open access: yesShock and Vibration, 2023
Accurate estimation of the cable force affects the bridges’ long-term integrity and serviceability directly. The frequency method is often used for cable tension testing in bridge engineering.
Wen-ming Zhang, Zhi-wei Wang
doaj   +1 more source

The connection performance and bearing capacity of a single-layer combined lattice shell with aluminium alloy honeycomb panels

open access: yesCase Studies in Construction Materials, 2022
To take full advantage of the lightweight and high strength characteristics of aluminium alloy honeycomb panels and to overcome the shortcoming of the low elastic modulus of the aluminium alloy lattice shell, the present study proposes a new aluminium ...
Caiqi Zhao   +5 more
doaj   +1 more source

The beetle elytron plate: a lightweight, high-strength and buffering functional-structural bionic material

open access: yesScientific Reports, 2017
To investigate the characteristics of compression, buffering and energy dissipation in beetle elytron plates (BEPs), compression experiments were performed on BEPs and honeycomb plates (HPs) with the same wall thickness in different core structures and ...
Xiaoming Zhang   +5 more
doaj   +1 more source

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