scholarly journals SEISMIC RETROFIT DESIGN OF RC COLUMNS WITH SPANDREL WALLS UTILIZING PRE-TENSIONED HIGH STRENGTH STEEL BARS AND STEEL PLATES

2004 ◽  
Vol 69 (577) ◽  
pp. 93-100 ◽  
Author(s):  
Tetsuo YAMAKAWA ◽  
Wencong LI
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Seismic Retrofit ◽  
Steel Plates ◽  
Rc Columns ◽  
Steel Bars ◽  
Retrofit Design

scholarly journals Experimental Investigation into Corrosion Effect on Mechanical Properties of High Strength Steel Bars under Dynamic Loadings

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Hui Chen ◽  
Jinjin Zhang ◽  
Jin Yang ◽  
Feilong Ye
Keyword(s):  
Mechanical Properties ◽  
Strain Rate ◽  
Dynamic Loading ◽  
High Strength Steel ◽  
High Strength ◽  
Tensile Tests ◽  
Reinforcing Steel ◽  
Test Results ◽  
Cross Sectional ◽  
Steel Bars

The tensile behaviors of corroded steel bars are important in the capacity evaluation of corroded reinforced concrete structures. The present paper studies the mechanical behavior of the corroded high strength reinforcing steel bars under static and dynamic loading. High strength reinforcing steel bars were corroded by using accelerated corrosion methods and the tensile tests were carried out under different strain rates. The results showed that the mechanical properties of corroded high strength steel bars were strain rate dependent, and the strain rate effect decreased with the increase of corrosion degree. The decreased nominal yield and ultimate strengths were mainly caused by the reduction of cross-sectional areas, and the decreased ultimate deformation and the shortened yield plateau resulted from the intensified stress concentration at the nonuniform reduction. Based on the test results, reduction factors were proposed to relate the tensile behaviors with the corrosion degree and strain rate for corroded bars. A modified Johnson-Cook strength model of corroded high strength steel bars under dynamic loading was proposed by taking into account the influence of corrosion degree. Comparison between the model and test results showed that proposed model properly describes the dynamic response of the corroded high strength rebars.

scholarly journals FLEXURAL STRENGTH OF THE STRENGTH-DUCTILITY TYPE SEISMIC RETROFIT TECHNIQUE OF RC COLUMNS USING PC BAR PRESTRESSING AND STEEL PLATES

2020 ◽  
Vol 85 (767) ◽  
pp. 97-104 ◽  
Author(s):  
Kozo NAKADA ◽  
Tetsuo YAMAKAWA ◽  
Pasha JAVADI ◽  
Mohammad Zahid NOORI ◽  
Kazuo KANEDA
Keyword(s):  
Flexural Strength ◽  
Seismic Retrofit ◽  
Steel Plates ◽  
Rc Columns

scholarly journals Enhancement of Road Freight Vehicle Fuel Efficiency Using Lightweight Flat-Bed Trailers Made of High-Strength Steel Plates

2015 ◽  
Vol 22 (2) ◽  
pp. 65-82 ◽  
Author(s):  
Hong-Seung Roh ◽  
민연주 ◽  
장소영 ◽  
신승진 ◽  
YU, Byeong-Jae ◽  
...  
Keyword(s):  
High Strength Steel ◽  
Fuel Efficiency ◽  
High Strength ◽  
Steel Plates ◽  
Road Freight ◽  
Vehicle Fuel Efficiency

Refinement of Cementite in High Strength Steel Plates by Rapid Heating and Tempering

2007 ◽  
pp. 4720-4725
Author(s):  
A. Nagao ◽  
K. Hayashi ◽  
K. Oi ◽  
S. Mitao ◽  
N. Shikanai
Keyword(s):  
High Strength Steel ◽  
Rapid Heating ◽  
High Strength ◽  
Steel Plates
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