Results 1 to 10 of about 24,656 (242)
Analysis of Re-Tensioning Time of Anchor Cable Based on New Prestress Loss Model
Mathematics, 2021 Considering the interaction among anchor cable, frame beam and rock mass, a new model of prestress loss of anchor cable was established. The accuracy and applicability of the new model were verified by comparing the field monitoring data and the ...
Keyou Shi
exaly +4 more sources
Analysis for the residual prestress of composite barrel for railgun with tension winding
Defence Technology, 2020 Based on the elastic theory of cylindrical shells and the theory of composite laminates, a prediction model for the residual prestress of the simplified round composite barrel for railgun is established.
Dong-Mei Yin, Bao-Ming Li
exaly +4 more sources
A New Prestress Loss Calculation Model of Anchor Cable in Pile–Anchor Structure
Mathematics, 2022 Pile–anchor structures are widely used in foundation excavation and slope reinforcement due to their safety and reliability. However, the pile–anchor structures have the common problem of the prestress loss of anchor cables, which may reduce the ...
Xing Gao +5 more
doaj +2 more sources
Buildings, 2021 This study proposes a cost-effective prestress monitoring method for post-tensioned reinforced concrete (RC) beams using a smart strand. Firstly, the concept of a piezoelectric-based smart strand and its implementation for prestress force monitoring are ...
Thanh-Cao Le +4 more
doaj +2 more sources
SensorsTo investigate the effects of long-term prestress loss on concrete box girders strengthened with external prestressing, a large-span box girder, in service for over 20 years and strengthened with external prestressing, was monitored for four months ...
Haoran Guo +4 more
doaj +3 more sources
Multi-objective optimization for prestress design of cable-strut structures
International Journal of Solids and Structures, 2019 Stiffness of a cable-strut structure is dependent on the level and distribution of prestress. Although a higher prestress level enhances overall stiffness of the structure, this condition may demand larger member sectional areas and material cost.
Zhihua Chen, Makoto Ohsaki
exaly +2 more sources
Efficient Prestress Wedge Flaw Detection Using a Lightweight Computational Framework [PDF]
SensorsPrestressing wedges are critical in bridge and road construction, but flaws in wedge threads lead to severe safety hazards, construction delays, and costly maintenance.
Qingyu Yao, Yulong Guo, Weidong Liu
doaj +2 more sources
Simulating the behavior of prestressed beams with different degrees of prestressing [PDF]
E-Zbornik, elektronički zbornik radova Građevinskog fakulteta, 2021 The paper covers numerical analysis of an experiment with five T-beams that are loaded to failure. The beams are designed to have the same ultimate bearing capacity with different ratios of prestressed to classic reinforcement. A detailed overview of the experiment is shown with exact section dimensions, as well as exact position and ratio of ...
Marino Jurišić +2 more
openaire +1 more source
Nondestructive Testing and Health Monitoring Techniques for Structural Effective Prestress
Structural Control & Health Monitoring, 2023 Prestressed structures are widely employed in bridges and large-span spatial structures, and the accurate evaluation of prestress state is of great importance for structural maintenance.
Junfeng Jia +3 more
semanticscholar +1 more source
Influence of activation temperature and prestress on behavior of Fe-SMA bonded joints
Construction and Building Materials, 2023 The prestressed strengthening of structures via use of bonded iron-based shape memory alloys (Fe-SMAs) has proven promising, albeit with concerns regarding the temperature dependency of the adhesive properties.
Lingzhen Li +3 more
semanticscholar +1 more source