Junhai Zhao
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View article: Association between Ambient Pm2.5，Pm10 Exposure and Children and Adolescents Hypertension: Evidence from a Cross-Sectional Survey in Central China
Association between Ambient Pm2.5，Pm10 Exposure and Children and Adolescents Hypertension: Evidence from a Cross-Sectional Survey in Central China Open
View article: A Seismic Risk Assessment of Concrete-Filled Double-Skin Steel Tube (CFDST) Frames with a Beam-Only-Connection for Reinforced Concrete Shear Walls (BRWs)
A Seismic Risk Assessment of Concrete-Filled Double-Skin Steel Tube (CFDST) Frames with a Beam-Only-Connection for Reinforced Concrete Shear Walls (BRWs) Open
The beam-only connected reinforced concrete shear wall (BRW) is used as a reinforcing component to enhance the seismic performance of concrete-filled, double-skin steel tube (CFDST) frames. The effects of the BRW on seismic risks of CFDST …
View article: Study on Construction Molding Technology of Long-Span Space Truss Suspended Dome Structure
Study on Construction Molding Technology of Long-Span Space Truss Suspended Dome Structure Open
Typically, the upper part of the roof a gymnasium building is a radial inverted triangular truss structure, and the lower part is a cable structure. They are connected by vertical braces to form a self-balancing structural system. The whol…
View article: Applications of Solar Panel Waste in Pavement Construction—An Overview
Applications of Solar Panel Waste in Pavement Construction—An Overview Open
Waste from used solar panels will be a worldwide problem in the near future mainly due to the strong uptake in solar energy and the necessity of disposing solar panel systems at the end–of–life stage, as these materials are hazardous. Whil…
View article: Triple-Shear Unified Solution for Bearing Capacity of Unsaturated Soft Soil Foundations with Hard Crust
Triple-Shear Unified Solution for Bearing Capacity of Unsaturated Soft Soil Foundations with Hard Crust Open
The bearing capacity of unsaturated soft soil foundations is affected by natural or artificial hard crust, due to the stress diffusion and closure effect. Based on the triple-shear unified solution of shear strength for unsaturated soil, t…
View article: A new solution to the ultimate bearing capacity of reinforced ground near slope based on the unified strength theory
A new solution to the ultimate bearing capacity of reinforced ground near slope based on the unified strength theory Open
In view of two modes of general shear failure and composite failure of reinforced ground, a new solution to the ultimate bearing capacity of strip footings resting on reinforced ground near slope was derived based on the unified strength t…
View article: Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods
Study on Model of Penetration into Thick Metallic Targets with Finite Planar Sizes by Long Rods Open
A finite cylindrical cavity expansion model for metallic thick targets with finite planar sizes, composed of ideal elastic‐plastic materials, with penetration of high‐speed long rod is presented by using the unified strength theory. Consid…
View article: Research on Damage Assessment of Buried Standard and Carbon‐Fibre‐Reinforced Polymer Petroleum Pipeline Subjected to Shallow Buried Blast Loading in Soil
Research on Damage Assessment of Buried Standard and Carbon‐Fibre‐Reinforced Polymer Petroleum Pipeline Subjected to Shallow Buried Blast Loading in Soil Open
Buried petroleum pipelines may encounter threats from blast loading due to terrorist attacks, accidental explosions, and artificial blasting during in‐progress construction. Carbon‐fibre‐reinforced polymer (CFRP) is often used for the repa…
View article: Research on Damage Assessment of Concrete-Filled Steel Tubular Column Subjected to Near-Field Blast Loading
Research on Damage Assessment of Concrete-Filled Steel Tubular Column Subjected to Near-Field Blast Loading Open
Concrete-filled steel tubular (CFST) columns are widely used in engineering structures, and they have many different cross section types. Among these, normal solid sections and concrete-filled double-skin steel tubular sections are often u…
View article: Boundary Effect and Dynamic Response Study for the Penetration of Rigid Projectiles into Thick, Finite-Radius, Metallic Targets
Boundary Effect and Dynamic Response Study for the Penetration of Rigid Projectiles into Thick, Finite-Radius, Metallic Targets Open
This study uses the unified strength theory to analyse the elastoplastic stage and plastic stage of a linear strain-hardening target material while considering the effects of the intermediate principal stress and the free lateral boundarie…
View article: Research on Dynamic Mechanical Properties and Constitutive Model of Basalt Fiber Reinforced Concrete after Exposure to Elevated Temperatures under Impact Loading
Research on Dynamic Mechanical Properties and Constitutive Model of Basalt Fiber Reinforced Concrete after Exposure to Elevated Temperatures under Impact Loading Open
The dynamic mechanical properties of basalt fiber reinforced concrete (BFRC) with different fiber contents (0.0%, 0.1%, 0.2%, 0.3%, 0.4%), confining pressures (0 MPa, 5 MPa, 10 MPa, 15 MPa) and exposed to different temperatures (20 °C, 200…
View article: Layout of cross braces on progressive collapse analysis of a 3D 12-story steel composite frame structures
Layout of cross braces on progressive collapse analysis of a 3D 12-story steel composite frame structures Open
In this paper, cross braces are implemented to mitigate the dynamic responses caused by column-remove scenarios of steel composite frames. To evaluate the effective of cross braces with different layout on enhancing the progressive collaps…
View article: Research on the Fractal Characteristics and Energy Dissipation of Basalt Fiber Reinforced Concrete after Exposure to Elevated Temperatures under Impact Loading
Research on the Fractal Characteristics and Energy Dissipation of Basalt Fiber Reinforced Concrete after Exposure to Elevated Temperatures under Impact Loading Open
The fractal characteristics and energy dissipation of basalt fiber reinforced concrete (BFRC) with five kinds of fiber volume contents (0.0%, 0.1%, 0.2%, 0.3%, 0.4%) after exposure to different temperatures (20 °C, 200 °C, 400 °C, 600 °C, …
View article: Ultimate Bearing Capacity of Strip Foundations in Unsaturated Soils considering the Intermediate Principal Stress Effect
Ultimate Bearing Capacity of Strip Foundations in Unsaturated Soils considering the Intermediate Principal Stress Effect Open
The reasonable determination of ultimate bearing capacity is crucial to an optimal design of shallow foundations. Soils surrounding shallow foundations are commonly located above the water table and are thus in an unsaturated state. The in…
View article: Numerical Evaluation of Reinforced Concrete Columns Retrofitted with FRP for Blast Mitigation
Numerical Evaluation of Reinforced Concrete Columns Retrofitted with FRP for Blast Mitigation Open
Fiber reinforced polymer (FRP) material is commonly applied in retrofitting structures due to the advantages of high strength and well corrosion resistance. Previous studies indicated that retrofitting with FRP sheet was an effective way f…
View article: Postponing the Onset and Alleviating the Load of Transonic Buffet by Using Steady and Periodic Tangential Slot Blowing
Postponing the Onset and Alleviating the Load of Transonic Buffet by Using Steady and Periodic Tangential Slot Blowing Open
Transonic buffet not only influences the structural integrity, handling quality and ride comfort, but also limits the flight envelope of transporters and airliners. To delay buffet onset and alleviate the buffet load, the effects of both s…
View article: Life-cycle Seismic Risk Cost Simplified Analysis of Industrial Buildings
Life-cycle Seismic Risk Cost Simplified Analysis of Industrial Buildings Open
The estimation of earthquake losses for single layer industrial buildings based stochastic analysis is the focus of the research. An assembly-based mixture vulnerability methodology is firstly adopted for industrial buildings modeling and …
View article: Seismic Performance of Exterior Steel Ring‐Stiffener Joint
Seismic Performance of Exterior Steel Ring‐Stiffener Joint Open
We study the seismic performance of the exterior steel ring‐stiffener (ESRS) joint, a member that is used to connect a steel beam to a square steel tubular column filled with steel fibre recycled concrete for seismic resistance. To this en…
View article: Airflow Patterns around Obstacles with Large‐Span Shallow Shell Roof: Wind Tunnel Measurements and Direct Simulation
Airflow Patterns around Obstacles with Large‐Span Shallow Shell Roof: Wind Tunnel Measurements and Direct Simulation Open
Wind tunnel tests on the rigid model of large‐span shallow spherical shell roof structure were carried out. The variation rule and the calculation method for the average shape coefficient of the fluctuating wind pressure under six differen…
View article: Research on Dynamic Response of Concrete‐Filled Steel Tube Columns Confined with FRP under Blast Loading
Research on Dynamic Response of Concrete‐Filled Steel Tube Columns Confined with FRP under Blast Loading Open
Recently, a concrete‐filled steel tube confined with fiber‐reinforced polymer (FRP) has become a hot research issue as a new type of structure. These studies mainly focus on its static performance and seismic and impact behaviour, with lit…
View article: Experimental and Numerical Investigation of Concrete‐Filled Double‐Skin Steel Tubular Column for Steel Beam Joints
Experimental and Numerical Investigation of Concrete‐Filled Double‐Skin Steel Tubular Column for Steel Beam Joints Open
This paper presents a new type of joint for connecting steel beams with a concrete‐filled double‐skin steel tubular (CFDST) column. Four half‐scale specimens of the joint with different specifications were constructed and tested under a co…
View article: Life-cycle seismic insurance model for multi-story RC frames based stochastic big-data analysis
Life-cycle seismic insurance model for multi-story RC frames based stochastic big-data analysis Open
The estimation of annual average seismic insurance premium in life service period for multi-story reinforced concrete (RC) frames based stochastic parameters models is the focus of the research.An innovative seismic analysis methodology is…
View article: Cyclic Testing of Concrete‐Filled Double‐Skin Steel Tubular Column to Steel Beam Joint with RC Slab
Cyclic Testing of Concrete‐Filled Double‐Skin Steel Tubular Column to Steel Beam Joint with RC Slab Open
The design of composite joints for connecting concrete‐filled double‐skin tubular (CFDST) columns to steel beams supporting reinforced concrete (RC) slabs is presented in this paper. Five half‐scale specimens were designed, including four …
View article: Calculation of Silo Wall Pressure considering the Intermediate Stress Effect
Calculation of Silo Wall Pressure considering the Intermediate Stress Effect Open
The reasonable determination of wall pressure is critical for the design of silo structures. In this study, the primary objective is to present four novel wall pressure coefficients based on four true triaxial strength criteria in the quas…
View article: Viscoelastic–plastic creep constitutive model of frozen soil
Viscoelastic–plastic creep constitutive model of frozen soil Open
In accordance with the twin-shear unified strength theory and the improved Nishihara model, a viscoelastic–plastic creep constitutive function of frozen soil has been established based on the associated flow rules, and the viscoelastic–pla…
View article: Life-cycle seismic costs estimation and seismic insurance model for multi-story isolated-based RC buildings
Life-cycle seismic costs estimation and seismic insurance model for multi-story isolated-based RC buildings Open
The estimation of annual average earthquake losses in life long period for simple multi-story isolated-based reinforced concrete (RC) frames based stochastic method models is the focus of the article.An innovative seismic fragility methodo…