Results 41 to 50 of about 9,441 (308)

Creep Characteristics Of Concrete Used In Long-Span Arch Bridge

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2019
The reinforced concrete arch bridge with concrete-filled steel tubular stiffened skeleton is extensively used in the mountainous area of southwest China due to their long span and high stability. Beibanjiang Bridge located in Shanghai- Kunming high-speed
Yongbao Wang   +3 more
doaj   +1 more source

Effect of Stress–Strength Ratio and Fiber Length on Creep Property of Polypropylene Fiber-Reinforced Alkali-Activated Slag Concrete

open access: yesBuildings, 2022
Alkali-activated slag (AAS) is an environmentally friendly green cementitious material that can replace ordinary Portland cement (OPC) and has attracted extensive research by scholars all over the world.
Xianyu Zhou, Wenzhong Zheng, Yu Yan
doaj   +1 more source

Time-dependent analysis of continuous precast prestressed concrete beams. [PDF]

open access: yes, 1999
A literature survey on the subject of construction, analysis and design of precast prestressed concrete beams made continuous has been conducted from which various methods of achieving continuity between the precast units have been identified.
Jaafar, Mohd Saleh
core  

Cross‐Modal Denoising and Integration of Spatial Multi‐Omics Data with CANDIES

open access: yesAdvanced Science, EarlyView.
In this paper, we introduce CANDIES, which leverages a conditional diffusion model and contrastive learning to effectively denoise and integrate spatial multi‐omics data. We conduct extensive evaluations on diverse synthetic and real datasets, CANDIES shows superior performance on various downstream tasks, including denoising, spatial domain ...
Ye Liu   +5 more
wiley   +1 more source

Calibration and verification of creep parameters for concrete [PDF]

open access: yesMATEC Web of Conferences
Concrete is a material which undergoes slow increasing deformation while subjected to persistent mechanical stress. This phenomenon is known as creep. In concrete material, creep occurs at all stress levels.
Jindra Daniel, Hradil Petr, Kala Jiří
doaj   +1 more source

Stem Cell Differentiation Disperses Transcriptional Clusters via a Conserved Surface‐Condensate Trajectory

open access: yesAdvanced Science, EarlyView.
Stem cell differentiation follows a conserved surface condensate trajectory: H3K27ac super enhancers nucleate large RNA polymerase II clusters that grow and unfold before transcriptional activity disperses them. This work reveals how biophysical forces at enhancer surfaces dynamically build and dismantle stem cell transcription hubs, reshaping cell ...
Tim Klingberg   +18 more
wiley   +1 more source

Energy-based nonlinear damage creep model considering the influence of the concrete creep rate

open access: yesFrontiers in Materials
In order to study the influence of confining pressure on the deformation of concrete, triaxial compression and creep tests under different confining pressures are carried out using a combination of laboratory tests and theoretical analysis.
Lu Wang
doaj   +1 more source

Experimental and numerical modeling of creep in different types of concrete

open access: yesHeliyon, 2018
Creep in concrete, play a critical role in estimating losses in prestressed concrete structures, such as bridge girders, nuclear containment vessels, etc.
D. Harinadha Reddy, Ananth Ramaswamy
doaj   +1 more source

Temperature influence on creep of reinforced concrete

open access: yesRevista IBRACON de Estruturas e Materiais, 2020
: The creep of concrete promotes strains over time in structural members kept under sustained load. It causes the stress decrease on the concrete and the steel stress increase in reinforced concrete members. The moisture content and temperature influence
Edmilson Lira Madureira   +1 more
doaj   +1 more source

Thermo-hygro-chemo-mechanical model of concrete at early ages and its extension to tumor growth numerical analysis. [PDF]

open access: yes, 2013
The aim of the PhD thesis is the development of two multiphase models from a common theoretical basis, applied to two very different research fields: i) the study of the behavior of concrete at early ages, essentially for the prevention of cracking and ...
Sciumè, Giuseppe
core  

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