Jingsi Huo - Academia.edu (original) (raw)

Papers by Jingsi Huo

Research paper thumbnail of Experimental study on tubular K-joints under impact loadings

Journal of Constructional Steel Research, Sep 1, 2015

ABSTRACT This paper experimentally examines the behaviour of tubular K-joints subjected to impact... more ABSTRACT This paper experimentally examines the behaviour of tubular K-joints subjected to impact loadings. An experimental programme involved two tests on unstiffened tubular K-joints under different impact energies and one on stiffened configuration is carried out through a high-performance drop hammer machine. The dynamic responses of three tubular K-joints are described and discussed with emphasis on the effect of impact energy and internal stiffeners. Based on the experimental results, the key behavioural patterns including the development of impact force, deformation and strain, as well as failure modes are identified, and impact mechanism is also investigated. It is shown that the local indentation at the impacted area of the chord is the main plastic deformation of tubular K-joints under impact, and higher applied impact energy results in larger plasticity. Moreover, the presence of internal ring stiffeners significantly improves the impact resistance of tubular K-joints.

Research paper thumbnail of Experimental study on dynamic tensile performance of Q345 structural steel considering thickness differences

Research paper thumbnail of Rate-Dependent Constitutive Model of Anti-Earthquake High-Strength Reinforcing Steel Htrb600e in Tension

Research paper thumbnail of Experimental assessment of fire-exposed RC beam-column connections with varying reinforcement development lengths subjected to column removal

Fire Safety Journal, 2018

Research paper thumbnail of Dynamic behaviors of butt welds and fillet welds under intermediate strain rate

Journal of Constructional Steel Research

Research paper thumbnail of Concrete-Filled Hollow Structural Steel Columns after Exposure to ISO-834 Fire Standard

Journal of Structural Engineering, 2003

The use of hollow structural steel (HSS) columns filled with concrete has become widespread in th... more The use of hollow structural steel (HSS) columns filled with concrete has become widespread in the past few decades. The residual strength of a composite column may be used to assess the potential damage caused by fire and help to establish an approach to calculate the ...

Research paper thumbnail of Experimental behabiour of steel beam to concrete-filled steel tubular (CFST) column connections after exposure to fire

The chapter describes the experimental behavior of a steel beam to concrete-filled steel tubular ... more The chapter describes the experimental behavior of a steel beam to concrete-filled steel tubular (CFST) column connections after exposure to fire. CFST columns have several structural and constructional benefits, such as high strength, fire resistance, large stiffness and ductility, restraint to local buckling of the steel tube provided by the infill concrete core, and omission of formwork, and thus reducing the construction cost and time. These advantages are recognized and have led to the increased use of CFST columns in some of the recent tall buildings in China. The chapter discusses some new test data pertaining to the behavior of steel beam to CFST column connections using external ring after exposure to the ISO-834 standard fire.

Research paper thumbnail of Experimental study on axial mechanical behavior of reinforced concrete stub columns with pre-load after exposure to high temperatures

Jianzhu Jiegou Xuebao/Journal of Building Structures

Research paper thumbnail of Tests on impact behaviour of micro-concrete-filled steel tubes at elevated temperatures up to 400°C

Materials and Structures

Concrete-filled tubular (CFT) columns are being more and more utilized in construction of tall bu... more Concrete-filled tubular (CFT) columns are being more and more utilized in construction of tall buildings and bridges. The CFT column system, which has been proved to have excellent load carrying capacity and ductility, by static and simulated seismic loading tests, also has good dynamic impact behaviour. The impact resistance of small-size micro-concrete-filled steel tubes under axial impact load at elevated temperatures up to 400°C was experimentally studied by using a spilt Hopkinson pressure bar. The stress and strain time history curves of the tested specimens were recorded to analyze the impact behaviour of CFT at elevated temperatures. The failure patterns and the influence of temperature on the impact resistance of CFT are discussed. The test results show that CFT has an excellent impact resistant capacity at elevated temperatures and the dynamic behaviour of core concrete under high temperatures was discovered. A simplified calculation method to determine the impact resistan...

Research paper thumbnail of Effects of sustained axial load and cooling phase on post-fire behaviour of concrete-filled steel tubular stub columns

Research paper thumbnail of Finite Element Modeling of Concrete-Filled Steel Tubular Column after Exposure to Fire

Key Engineering Materials, 2009

Research paper thumbnail of Dynamic Behaviors of Steel Beam-to-Column Assemblies Under Drop Hammer Impact

Proceedings of the 10th Pacific Structural Steel Conference (PSSC 2013), 2013

Research paper thumbnail of Strength of Concrete Filled Steel Tubes under High-Strain Rate Loading

Composite Construction in Steel and Concrete VI, 2011

Research paper thumbnail of Dynamic behaviour of normal-strength carbonate aggregate concrete at temperatures up to 800°C

Magazine of Concrete Research, 2014

ABSTRACT The impact resistance of normal-strength carbonate concrete at elevated temperatures up ... more ABSTRACT The impact resistance of normal-strength carbonate concrete at elevated temperatures up to 800 degrees C was experimentally studied using a split Hopkinson pressure bar (SHPB). The SHPB impact tests focused on the effects of concrete design strengths, high temperature and strain rate on the dynamic behaviour of concrete at elevated temperatures. The stress-time and strain-time curves of the tested specimens were recorded to analyse the impact behaviour of concrete at elevated temperatures. The influences of static compressive strength, high temperature and strain rate on the dynamic peak strength of concrete are discussed. The test results show that the strain rate effect of concrete at elevated temperature is significantly different from that of concrete at room temperature. Within the scope of the SHPB impact tests in this work, the strain rate effects of concrete at 200 degrees C and 300 degrees C are obviously higher than at room temperature. Concrete heated to 400 degrees C was found to recover to around the same level of the dynamic strength increase factor (DIF) values of concrete at 20 degrees C. The strain rate effects of concrete at 600 degrees C and 800 degrees C deteriorated sharply compared with those of concrete at room temperature and lower than 600 degrees C. This paper also shows that a previously recommended formula for the DIF is not suitable for predicting the dynamic behaviour of concrete at temperatures higher than 400 degrees C.

Research paper thumbnail of FE-Based Strength Analysis of Penglai Pavilion

Computational Structural Engineering, 2009

Research paper thumbnail of Residual strength of concrete-filled RHS columns after exposure to the ISO-834 standard fire

Thin-Walled Structures, 2002

Research paper thumbnail of Experimental study on dynamic behaviours of concrete after exposure to high temperatures up to 700 °C

Materials and Structures, 2013

Research paper thumbnail of Tests on impact behaviour of micro-concrete-filled steel tubes at elevated temperatures up to 400°C

Materials and Structures, 2009

Research paper thumbnail of Experimental study on impact behaviour of concrete-filled steel tubes at elevated temperatures up to 800 °C

Materials and Structures, 2014

ABSTRACT The dynamic behaviour of normal strength concrete-filled steel tubes (CFT) at elevated t... more ABSTRACT The dynamic behaviour of normal strength concrete-filled steel tubes (CFT) at elevated temperatures up to 800 °C under axial impact loading was experimentally studied by using a newly developed spilt Hopkinson pressure bar (SHPB) together with an electrical furnace. The effects of high temperature, impact velocity, steel ratio and slenderness ratio on the impact behaviour of CFT at elevated temperatures were experimentally studied. The stress and strain time history curves of the tested specimens were recorded to analyze the impact behaviour of CFT at elevated temperatures. The failure modes and the effects of the experimental parameters on the impact resistance of CFT are discussed. The test results showed that normal strength concrete-filled steel tube at elevated temperatures had a more excellent impact resistance in the paper than that described in Huo et al. (2009). A simplified calculation method was updated by introducing the reasonable dynamic increase factor model of hot concrete to reasonably assess the impact resistance of CFT at elevated temperatures.

Research paper thumbnail of Concrete-Filled Hollow Structural Steel Columns after Exposure to ISO-834 Fire Standard

Journal of Structural Engineering, 2003

The use of hollow structural steel (HSS) columns filled with concrete has become widespread in th... more The use of hollow structural steel (HSS) columns filled with concrete has become widespread in the past few decades. The residual strength of a composite column may be used to assess the potential damage caused by fire and help to establish an approach to calculate the ...

Research paper thumbnail of Experimental study on tubular K-joints under impact loadings

Journal of Constructional Steel Research, Sep 1, 2015

ABSTRACT This paper experimentally examines the behaviour of tubular K-joints subjected to impact... more ABSTRACT This paper experimentally examines the behaviour of tubular K-joints subjected to impact loadings. An experimental programme involved two tests on unstiffened tubular K-joints under different impact energies and one on stiffened configuration is carried out through a high-performance drop hammer machine. The dynamic responses of three tubular K-joints are described and discussed with emphasis on the effect of impact energy and internal stiffeners. Based on the experimental results, the key behavioural patterns including the development of impact force, deformation and strain, as well as failure modes are identified, and impact mechanism is also investigated. It is shown that the local indentation at the impacted area of the chord is the main plastic deformation of tubular K-joints under impact, and higher applied impact energy results in larger plasticity. Moreover, the presence of internal ring stiffeners significantly improves the impact resistance of tubular K-joints.

Research paper thumbnail of Experimental study on dynamic tensile performance of Q345 structural steel considering thickness differences

Research paper thumbnail of Rate-Dependent Constitutive Model of Anti-Earthquake High-Strength Reinforcing Steel Htrb600e in Tension

Research paper thumbnail of Experimental assessment of fire-exposed RC beam-column connections with varying reinforcement development lengths subjected to column removal

Fire Safety Journal, 2018

Research paper thumbnail of Dynamic behaviors of butt welds and fillet welds under intermediate strain rate

Journal of Constructional Steel Research

Research paper thumbnail of Concrete-Filled Hollow Structural Steel Columns after Exposure to ISO-834 Fire Standard

Journal of Structural Engineering, 2003

The use of hollow structural steel (HSS) columns filled with concrete has become widespread in th... more The use of hollow structural steel (HSS) columns filled with concrete has become widespread in the past few decades. The residual strength of a composite column may be used to assess the potential damage caused by fire and help to establish an approach to calculate the ...

Research paper thumbnail of Experimental behabiour of steel beam to concrete-filled steel tubular (CFST) column connections after exposure to fire

The chapter describes the experimental behavior of a steel beam to concrete-filled steel tubular ... more The chapter describes the experimental behavior of a steel beam to concrete-filled steel tubular (CFST) column connections after exposure to fire. CFST columns have several structural and constructional benefits, such as high strength, fire resistance, large stiffness and ductility, restraint to local buckling of the steel tube provided by the infill concrete core, and omission of formwork, and thus reducing the construction cost and time. These advantages are recognized and have led to the increased use of CFST columns in some of the recent tall buildings in China. The chapter discusses some new test data pertaining to the behavior of steel beam to CFST column connections using external ring after exposure to the ISO-834 standard fire.

Research paper thumbnail of Experimental study on axial mechanical behavior of reinforced concrete stub columns with pre-load after exposure to high temperatures

Jianzhu Jiegou Xuebao/Journal of Building Structures

Research paper thumbnail of Tests on impact behaviour of micro-concrete-filled steel tubes at elevated temperatures up to 400°C

Materials and Structures

Concrete-filled tubular (CFT) columns are being more and more utilized in construction of tall bu... more Concrete-filled tubular (CFT) columns are being more and more utilized in construction of tall buildings and bridges. The CFT column system, which has been proved to have excellent load carrying capacity and ductility, by static and simulated seismic loading tests, also has good dynamic impact behaviour. The impact resistance of small-size micro-concrete-filled steel tubes under axial impact load at elevated temperatures up to 400°C was experimentally studied by using a spilt Hopkinson pressure bar. The stress and strain time history curves of the tested specimens were recorded to analyze the impact behaviour of CFT at elevated temperatures. The failure patterns and the influence of temperature on the impact resistance of CFT are discussed. The test results show that CFT has an excellent impact resistant capacity at elevated temperatures and the dynamic behaviour of core concrete under high temperatures was discovered. A simplified calculation method to determine the impact resistan...

Research paper thumbnail of Effects of sustained axial load and cooling phase on post-fire behaviour of concrete-filled steel tubular stub columns

Research paper thumbnail of Finite Element Modeling of Concrete-Filled Steel Tubular Column after Exposure to Fire

Key Engineering Materials, 2009

Research paper thumbnail of Dynamic Behaviors of Steel Beam-to-Column Assemblies Under Drop Hammer Impact

Proceedings of the 10th Pacific Structural Steel Conference (PSSC 2013), 2013

Research paper thumbnail of Strength of Concrete Filled Steel Tubes under High-Strain Rate Loading

Composite Construction in Steel and Concrete VI, 2011

Research paper thumbnail of Dynamic behaviour of normal-strength carbonate aggregate concrete at temperatures up to 800°C

Magazine of Concrete Research, 2014

ABSTRACT The impact resistance of normal-strength carbonate concrete at elevated temperatures up ... more ABSTRACT The impact resistance of normal-strength carbonate concrete at elevated temperatures up to 800 degrees C was experimentally studied using a split Hopkinson pressure bar (SHPB). The SHPB impact tests focused on the effects of concrete design strengths, high temperature and strain rate on the dynamic behaviour of concrete at elevated temperatures. The stress-time and strain-time curves of the tested specimens were recorded to analyse the impact behaviour of concrete at elevated temperatures. The influences of static compressive strength, high temperature and strain rate on the dynamic peak strength of concrete are discussed. The test results show that the strain rate effect of concrete at elevated temperature is significantly different from that of concrete at room temperature. Within the scope of the SHPB impact tests in this work, the strain rate effects of concrete at 200 degrees C and 300 degrees C are obviously higher than at room temperature. Concrete heated to 400 degrees C was found to recover to around the same level of the dynamic strength increase factor (DIF) values of concrete at 20 degrees C. The strain rate effects of concrete at 600 degrees C and 800 degrees C deteriorated sharply compared with those of concrete at room temperature and lower than 600 degrees C. This paper also shows that a previously recommended formula for the DIF is not suitable for predicting the dynamic behaviour of concrete at temperatures higher than 400 degrees C.

Research paper thumbnail of FE-Based Strength Analysis of Penglai Pavilion

Computational Structural Engineering, 2009

Research paper thumbnail of Residual strength of concrete-filled RHS columns after exposure to the ISO-834 standard fire

Thin-Walled Structures, 2002

Research paper thumbnail of Experimental study on dynamic behaviours of concrete after exposure to high temperatures up to 700 °C

Materials and Structures, 2013

Research paper thumbnail of Tests on impact behaviour of micro-concrete-filled steel tubes at elevated temperatures up to 400°C

Materials and Structures, 2009

Research paper thumbnail of Experimental study on impact behaviour of concrete-filled steel tubes at elevated temperatures up to 800 °C

Materials and Structures, 2014

ABSTRACT The dynamic behaviour of normal strength concrete-filled steel tubes (CFT) at elevated t... more ABSTRACT The dynamic behaviour of normal strength concrete-filled steel tubes (CFT) at elevated temperatures up to 800 °C under axial impact loading was experimentally studied by using a newly developed spilt Hopkinson pressure bar (SHPB) together with an electrical furnace. The effects of high temperature, impact velocity, steel ratio and slenderness ratio on the impact behaviour of CFT at elevated temperatures were experimentally studied. The stress and strain time history curves of the tested specimens were recorded to analyze the impact behaviour of CFT at elevated temperatures. The failure modes and the effects of the experimental parameters on the impact resistance of CFT are discussed. The test results showed that normal strength concrete-filled steel tube at elevated temperatures had a more excellent impact resistance in the paper than that described in Huo et al. (2009). A simplified calculation method was updated by introducing the reasonable dynamic increase factor model of hot concrete to reasonably assess the impact resistance of CFT at elevated temperatures.

Research paper thumbnail of Concrete-Filled Hollow Structural Steel Columns after Exposure to ISO-834 Fire Standard

Journal of Structural Engineering, 2003

The use of hollow structural steel (HSS) columns filled with concrete has become widespread in th... more The use of hollow structural steel (HSS) columns filled with concrete has become widespread in the past few decades. The residual strength of a composite column may be used to assess the potential damage caused by fire and help to establish an approach to calculate the ...