The Seismic Performance Analysis of Semi-rigid Spatial Steel Frames Based on Moment-Rotation Curves of End-plate Connection

Structures ◽  
2022 ◽  
Vol 36 ◽  
pp. 1032-1049
Author(s):  
Shengcan Lu ◽  
Zhan Wang ◽  
Jianrong Pan ◽  
Peng Wang
Keyword(s):  
Performance Analysis ◽  
Seismic Performance ◽  
Steel Frames ◽  
Rotation Curves ◽  
End Plate ◽  
Plate Connection

STEEL WEIGHT SAVING DEVELOPED FROM SEMI-CONTINUOUS CONSTRUCTION IN MULTI-STOREY BRACED STEEL FRAME BASED ON EURO-CODE 3

2015 ◽  
Vol 77 (16) ◽  
Author(s):  
T. Y. Taher ◽  
M. M. Tahir ◽  
A. Sulaiman ◽  
S. P. Ngian ◽  
A. Saggaff
Keyword(s):  
Parametric Study ◽  
Steel Frames ◽  
Steel Frame ◽  
Simple Construction ◽  
Weight Saving ◽  
End Plate ◽  
Rigid Connection ◽  
Parametric Studies ◽  
Steel Weight ◽  
Plate Connection

Steel frames can be designed as simple, semi-continuous, and continuous construction. However, these types of constructions depend on the type of connections used. Connections are usually classified in design as pinned which is associated with simple construction or rigid which is associated with continuous construction. However, the actual behaviour in most cases is classified as semi-rigid connections or partial strength. The semi-rigid connections usually associated with the stiffness of the connection while the strength of this connection usually associated with partial strength. The use of semi-rigid connection has been encouraged by Euro-code 3 and studies on the matter known as semi-continuous construction have proven that substantial savings in steel weight of the overall construction. A series of parametric studies on two bays of two, four, six, and eight storey of multi-storey braced steel frame are presented in this paper. All frames are designed using S275 steel and flush end-plate connection was used as connection for semi-continuous construction whereas fin plate connection was used for simple construction. The frames are designed both as simple construction and semi-continuous construction and the steel weight of the frames was calculated and compared. From the parametric study it was found that by using partial strength connection the saving in steel weight of the frames is in the range of 11.5% to 22.5% of the total steel weight of the frames.

Research on seismic performance of prefabricated concrete-filled steel tubular frame joints

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Shufeng Li ◽  
Di Zhao ◽  
Yating Zhou
Keyword(s):  
Seismic Performance ◽  
High Strength ◽  
Steel Tube ◽  
Equivalent Viscous Damping ◽  
Concrete Filled Steel Tube ◽  
Content Type ◽  
Finite Element Software ◽  
End Plate ◽  
Good Energy ◽  
Plate Connection

PurposeConcrete-filled steel tube structures are widely used for their high bearing capacity, good plasticity, good fire resistance and optimal seismic performance. In order to give full play to the advantages of concrete-filled steel tube, this paper proposes a prefabricated concrete-filled steel tube frame joint.Design/methodology/approachThe concrete-filled steel tube column and beam are connected by high-strength bolted end-plate, and the steel bars in the concrete beam are welded vertically with the end-plates through the enlarged pier head. In addition, the finite element software ABAQUS is used numerically to study the seismic performance of the structure.FindingsThe ductility coefficient of the joint is in 1.72–6.82, and greater than 2.26 as a whole. The equivalent viscous damping coefficient of the joint is 0.13–3.03, indicating that the structure has good energy dissipation capacity.Originality/valueThe structure is convenient for construction and overcomes the shortcomings of the previous on-site welding and on-site concrete pouring. The high-strength bolted end-plate connection can effectively transfer the load, and each component can give play to its material characteristics.

Research on the End-Plate Thickness of Extended End-Plate Connection in Plastic Hinge Theory

2011 ◽  
Vol 467-469 ◽  
pp. 1170-1174
Author(s):  
Xian Lei Cao ◽  
Tao Zhang ◽  
Cui Ling Ma
Keyword(s):  
Design Process ◽  
Plastic Hinge ◽  
Plate Thickness ◽  
Steel Frames ◽  
End Plate ◽  
Extended End Plate ◽  
Plate Connections ◽  
Plate Connection ◽  
Small Deformations ◽  
Plastic Theory

The extended end-plate connections widely used in steel frames, at home and abroad，many countries have given varieties of different methods to determine end-plate thickness. This paper, uses the plastic theory to analyze the end-plate thickness of the figure 7.2.9a in CECS 102：2002 specification, adopts small deformations of geometric relations and the equal principle of work both inside and outside, the prying force issue is considered according to whether deformation bolts do work, and finally discuss the design process of the end-plate thickness. Contrasting present norms, this method can significantly reduce end-plate thickness.

scholarly journals Experimental Study and Finite Element Analysis of Hysteretic Behavior of End-plate Connection Semi-Rigid Space Steel Frames

2013 ◽  
Vol 7 (1) ◽  
pp. 68-76 ◽  
Author(s):  
Wang Tao ◽  
Wang Zhan ◽  
Wang Junqi
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Cyclic Load ◽  
Failure Modes ◽  
Steel Frames ◽  
Hysteretic Behavior ◽  
Element Analysis ◽  
End Plate ◽  
Stress And Deformation ◽  
Plate Connection

To investigate the seismic behavior of end-plate connection semi-rigid space steel frames, three 1/4-scale specimens were tested under cyclic load. Finite element analysis which took initial geometric imperfections into consideration was also conducted, and the results conform to experimental results. The failure modes, hysteretic behavior, deformation capacity and energy-dissipation capacity of the end-plate connection semi-rigid space steel frame have been explicated in this paper. The investigation in this paper indicates that: (1) the end-plate connection semi-rigid space steel frames exhibit full hysteretic loops under horizontal cyclic load and have good ductility as well, indicating that this kind of frames can satisfy the deformation demand in strong earthquakes. (2) Plastic hinges formed at beam ends, and the stress and deformation amplitudes of joint-panels were smaller than those of column base and beam ends. It shows that this kind of frames satisfy the design principle “strong column weak beam, strong joint weak component”.

Analysis on the Seismic Behavior of Extended End-Plate Connections of Steel Frame Structure

2012 ◽  
Vol 193-194 ◽  
pp. 1405-1413 ◽  
Author(s):  
Zhu Ling Yan ◽  
Bao Long Cui ◽  
Ke Zhang
Keyword(s):  
Finite Element ◽  
Cyclic Loading ◽  
Seismic Performance ◽  
Seismic Behavior ◽  
Frame Structure ◽  
End Plate ◽  
Rigid Connection ◽  
Extended End Plate ◽  
Plate Connections ◽  
Steel Frame Structure

This paper conducts analysis on beam-column extended end-plate semi-rigid connection joint concerning monotonic loading and cyclic loading of finite element through ANSYS program, mainly discussed the influence of parameters such as the form of end plate stiffening rib on anti-seismic performance of joint.

Seismic performance assessment of multi-story steel frames with curved dampers and semi-rigid connections

2021 ◽  
Vol 182 ◽  
pp. 106666
Author(s):  
S.F. Fathizadeh ◽  
S. Dehghani ◽  
T.Y. Yang ◽  
A.R. Vosoughi ◽  
E. Noroozinejad Farsangi ◽  
...  
Keyword(s):  
Performance Assessment ◽  
Seismic Performance ◽  
Steel Frames ◽  
Seismic Performance Assessment

Structural Behaviour of Blind Bolted Connection to Concrete-Filled Steel Tubular Columns

2010 ◽  
Vol 163-167 ◽  
pp. 591-595
Author(s):  
Jing Feng Wang ◽  
Xin Yi Chen ◽  
Lin Hai Han
Keyword(s):  
Analysis Model ◽  
Bolted Connections ◽  
Structural Behaviour ◽  
Tubular Columns ◽  
End Plate ◽  
Moment Resisting ◽  
Strength And Stiffness ◽  
Plate Connections ◽  
The Moment ◽  
Plate Connection

This paper studies structural behaviour of the blind bolted connections to concrete-filled steel tubular columns by a serial of experimental programs, which conducted involving eight sub-assemblages of cruciform beam-to-column joints subjected to monotonic loading and cyclic loading. The moment-rotation hysteretic relationships and failure models of the end plate connections have been measured and analyzed. A simplified analysis model for the blind bolted connections is proposed based on the component method. It is concluded that the blind bolted end plate connection has reasonable strength and stiffness, whilst the rotation capacity of the connection satisfies the ductility requirements for earthquake-resistance in most aseismic regions. This typed joint has excellent seismic performance, so it can be used in the moment-resisting composite frame.

Sign in / Sign up

Export Citation Format

Share Document