Results 71 to 80 of about 2,272 (191)

Test on axial compression performance of nano-silica concrete-filled angle steel reinforced GFRP tubular column

open access: yesNanotechnology Reviews, 2019
This paper attempts to investigate the effect of various parameters on the axial compressive behavior of nano-silica concrete-filled angle steel reinforced GFRP tubular columns.
He Kang, Chen Yu, Xie Wentao
doaj   +1 more source

Random finite element analysis on ground subsidence caused by tunnel excavation in karst regions with spatial variable soil

open access: yesDeep Underground Science and Engineering, Volume 5, Issue 2, Page 615-632, June 2026.
This study investigates ground subsidence during tunnel excavation in karst areas, highlighting the combined effects of karst cave proximity, cave size, and soil spatial variability. Findings suggest that shorter cave distances and larger cave sizes increase subsidence variability, and a modified Peck formula is proposed for more accurate subsidence ...
Zhenghong Su   +4 more
wiley   +1 more source

Multiple Scattering Suppression in Heterogeneous Media: High‐Precision Imaging of Sleeve Grouting Defects Based on Elastic Reverse Time Migration

open access: yesEngineering Reports, Volume 8, Issue 6, June 2026.
This study proposes an elastic wave reverse time migration (RTM) method to suppress multiple scattering noise in heterogeneous concrete. By effectively utilizing scattered wavefields, RTM enables high‐precision, robust imaging of sleeve grouting defects in prefabricated buildings, significantly outperforming traditional algorithms.
Yong Lu, Li Tian, Sheng Yuan, Jing Zhang
wiley   +1 more source

Comparative Experimental Efficiency of Solar Water Heating Systems With Enhanced Thermal Performance: A Review

open access: yesEnergy Science &Engineering, Volume 14, Issue 6, Page 3056-3072, June 2026.
This review presents a comparative analysis of experimental studies aimed at improving the thermal efficiency of solar water heating (SWH) systems. Various enhancement techniques, including nanofluids, phase change materials, optimized collector designs, and hybrid photovoltaic–thermal systems, are evaluated based on their impact on system performance ...
Oluwaseyi O. Alabi   +2 more
wiley   +1 more source

Experimental Study on Seismic Performance of Transversely Ribbed Corrugated Steel Plate–Steel Pipe Concrete Shear Wall

open access: yesBuildings
To enhance the seismic resilience of building structures and refine the stability and longevity of buildings, it is essential to implement strategies that not only reinforce their structural integrity but also ensure their enduring functionality.
Zixuan Chen, Xuan Liu
doaj   +1 more source

Evaluating the sustainability of mineral water consumption using multi‐scale hydrogeophysics in Caxambu, Brazil

open access: yesNear Surface Geophysics, Volume 24, Issue 3, Page 234-251, June 2026.
Abstract A better understanding of the near‐surface aquifer system of the Caxambu Water Park, located in the Minas Gerais State, Brazil, has been achieved. The study aimed to identify groundwater reservoirs and flow patterns and contribute to the hydrogeological conceptual model using a multi‐scale geophysical approach.
Emanuele F. La Terra   +5 more
wiley   +1 more source

Infinity‐operadic foundations for embedding calculus

open access: yesJournal of Topology, Volume 19, Issue 2, June 2026.
Abstract Motivated by applications to spaces of embeddings and automorphisms of manifolds, we consider a tower of ∞$\infty$‐categories of truncated right modules over a unital ∞$\infty$‐operad O$\mathcal {O}$. We study monoidality and naturality properties of this tower, identify its layers, describe the difference between the towers as O$\mathcal {O}$
Manuel Krannich, Alexander Kupers
wiley   +1 more source

Buckling Analysis Of Concrete Filled Steel Tube Columns

open access: yes, 2018
The use of CFST in building construction has increased sig nificantly in the recent years mainly due to its simple construction sequence and superior structural perform ance. Therefore,it is necessary to understand their behavior as structural member. Extensive experiment al studies about concrete filled steel tubes (CFSTS) have been conducted in past.
MR.K.SURESH KUMAR, SRI.O. SURESH
openaire   +1 more source

Bond behavior between steel and solid waste concrete activated by soda residue and carbide slag in concrete-filled steel tubes (CFSTs)

open access: yesCase Studies in Construction Materials
In recent years, the increasing emphasis on sustainable development in civil engineering has significantly advanced research on solid waste materials. However, the practical application of these materials in structural engineering remains limited.
Han Li   +4 more
doaj   +1 more source

Bearing Capacities of Different-Diameter Concrete-Filled Steel Tubes under Axial Compression

open access: yesAdvances in Materials Science and Engineering, 2016
The bearing capacities of concrete-filled steel tubes are normally derived through experiments with small-scale specimens, but it is uncertain whether such derivations are appropriate for the much larger components used in practical engineering.
Wenjing Wang   +3 more
doaj   +1 more source

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