156 Result(s)
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Article
Open AccessAnti-explosion Performance of a New Type of Polyurea-Coated Corrugated Steel Plate Reinforced Concrete Slab
Improving the explosion resistance of the building wall has been a hot topic in the current protection engineering research, in this process, corrugated steel and polyisocyanate oxazolidine (POZD) were widely ...
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Article
Open AccessEffect of Nano-TiO2 and Polypropylene Fiber on Mechanical Properties and Durability of Recycled Aggregate Concrete
In order to promote the engineering application of recycled concrete, the effects of PPF and nano-TiO2 dioxide on the mechanical properties and durability of recycled concrete were studied.
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Article
Open AccessNumerical Simulation Study on the Seismic Performance of Prefabricated Fiber-Reinforced Concrete Beam–Column Joints With Grouted Sleeve Connections
Based on the available experimental data, fiber models for four prefabricated fiber-reinforced concrete beam–column joint specimens with grouted sleeve connections are first developed in OpenSees software. The...
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Article
Open AccessDamage and Deterioration Mechanism of Coal Gangue Mixed Pumice Aggregate Concrete Under Freeze–Thaw Cycles
The world is facing the problem of depletion of natural sand and gravel resources, and a large amount of coal gangue solid waste is produced in Inner Mongolia, China, which has low utilization rate and causes ...
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Article
Open AccessCorrection: Experimental research on seismic performance of masonry-infilled RC frames retrofitted by using fabric-reinforced cementitious matrix under in-plane cyclic loading
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Article
Open AccessEffect of Contents, Tensile Strengths and Aspect Ratios of Hooked-End Steel Fibers (SFs) on Compressive and Flexural Performance of Normal Strength Concrete
This study is a part of the study to simplify the reinforcing details of reinforced concrete (RC) structural members by substituting the conventional reinforcement with hooked-end steel fibers (SFs). This pape...
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Article
Open AccessExperimental and Numerical Analysis of the Ribbed Reinforced Concrete Fracture Behavior Based on the Mesoscale FE Model
This study presented a meso-model for the fracture analysis of the reinforced concrete (RC) structure. A modeling method of RC meso-structure was proposed, and the rebars were allowed to separate from the conc...
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Article
Open AccessExperimental Investigation on Fatigue Improvement of Orthotropic Steel Bridge Deck Using Steel Fiber Reinforced Concrete
The high-performance top** concrete overlay would significantly reduce the fatigue stresses at susceptible details of orthotropic steel deck (OSD) and effectively improve the fatigue performance. Full-scale ...
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Article
Open AccessPerformances of Concrete Columns with Modular UHPC Permanent Formworks Under Axial Load
This research proposed the modular prefabricated permanent formwork system made of ultra-high-performance concrete (UHPC). Two kinds of modular formwork shapes were designed: the flat formwork and the ribbed. ...
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Article
Open AccessExperimental Research on Seismic Performance of Masonry-Infilled RC Frames Retrofitted by Using Fabric-Reinforced Cementitious Matrix Under In-Plane Cyclic Loading
Fabric-reinforced cementitious matrix (FRCM) composites, also known as textile-reinforced mortars (TRMs), represent a new advancement in structural repair and reinforcement technology. Aiming to improve the en...
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Article
Open AccessExperimental Analysis and Evaluation of the Compressive Strength of Rubberized Concrete During Freeze–Thaw Cycles
Recycling scrap tires provides an alternative source of fine aggregates for the production of rubberized concrete and this will lead to significant increase in concrete frost resistance, environmental protecti...
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Article
Open AccessEffect of Iron Tailings as Fine Aggregate and Mineral Admixture on Strength and Microstructure of Cement Mortar
To investigate the application of iron tailings in cement-based materials as fine aggregate and mineral admixture, six iron tailings sands were selected from different places of origin, and the methods of acid...
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Article
Open AccessInfluence of Aeolian Sand on Capillary Water Absorption of Concrete Under Freeze–Thaw Conditions
Aeolian sand (AS) can become a green resource for concrete after the reasonable utilization. Study the evolution of AS concrete (ASC) capillary water absorption (CWA) under freeze–thaw (FT) conditions is of gr...
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Chapter and Conference Paper
Dimensionless Continuum Model of Vertical Free Vibration of Spatial Self-anchored Suspension Bridge
Due to the spatial coupling of main cable-hanger and the internal self-balance between subsystems, the free vibration continuum model of spatial self-anchored suspension bridge is difficult to establish, which...
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Chapter and Conference Paper
Assembly Fault-Tolerant Interval Inversion Method for Cable-Stayed Bridge Based on Bilayer Surrogate Model
Focusing on the assembly accuracy control problem of practical engineering and installation tolerance ability under uncertain interference, this paper presents an interval inversion method derived from reliabi...
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Chapter and Conference Paper
Design Method on Flexural Behaviour of Singly-Reinforced PVA-ECC Beams
Polyvinyl alcohol-engineered cementitious composite (PVA-ECC) is superior to normal concrete in terms of tensile strain capacity and crack mitigation. On account of the significant strain-hardening behaviour, ...
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Chapter and Conference Paper
Investigating the Effect of the Characteristics of Inclusions and Micro-voids on Fretting Fatigue Initiation Lifetime with Two-Scale Analysis Approach
Fretting fatigue problem involves a multiaxial stress state due to the contact problem. This complicated mechanical situation decreases the total fatigue life seriously. To obtain an accurate estimation of fre...
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Chapter and Conference Paper
A Dynamic Model of Machine Learning and Deep Learning in Shield Tunneling Parameters Prediction
Tunnel boring machine (TBM) is widely utilized in large cross-section tunnel excavation with high permeability soil conditions. During the shield tunneling process of TBM, dynamic prediction of driving paramet...
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Chapter and Conference Paper
Hybrid Model for Predicting Average Cutter Wear in TBM Excavation
The complex interaction between soil and TBM cutters makes it hard to estimate the cutter wear precisely and reliably, especially for the composite strata (inhomogeneous geology). In this study, a tunnel that ...
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Chapter and Conference Paper
Multi-stage Objective Algorithm for Accelerating the Structural Optimization of Tall Building Structures
For large or complex structures, due to the large amount of design variables, structural optimization often takes too much time. This paper studies how to define the appropriate component size in a specific st...
