scholarly journals EXPERIMENTAL STUDY ON THE COMPRESSIVE STRENGTH OF STEEL TUBE FILLED WITH HIGH STRENGTH CONCRETE USING CENTRIFUGAL COMPACTION

1995 ◽  
Vol 60 (469) ◽  
pp. 137-147 ◽  
Author(s):  
Tatsuo OKAMOTO ◽  
Toshimoto MAENO ◽  
Kiyoshi MASUO ◽  
Hidekazu NISHIZAWA ◽  
Kiyoshi KANETA
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
High Strength Concrete ◽  
High Strength ◽  
Steel Tube ◽  
Strength Concrete

Experimental Study on Compressive Bearing Capacity of High Strength Concrete-Filled Steel Tube Composite Columns

2011 ◽  
Vol 368-373 ◽  
pp. 410-414 ◽  
Author(s):  
Hong Zhen Kang ◽  
Lei Yao ◽  
Xi Min Song ◽  
Ying Hua Ye
Keyword(s):  
Compressive Strength ◽  
Reinforced Concrete ◽  
High Strength Concrete ◽  
High Strength ◽  
Steel Tube ◽  
Test Results ◽  
Concrete Filled Steel Tube ◽  
Composite Columns ◽  
Strength Concrete ◽  
Axial Compressive Strength

To study axial compressive strength of high strength concrete-filled steel tube composite columns, tests of 18 specimens were carried out. Parameters of the specimens were the confinement index of concrete-filled steel tube, the cubic strength and the stirrup characteristic value of concrete outer of steel tube. Test results show that the concrete-filled steel tube and the reinforced concrete deformed simultaneously in the axial direction before and at the peak value of axial compressive force; after failure of the reinforced concrete, the concrete-filled steel tube can still bear the axial load and deformation; the main influential factors of axial compressive capacity are confinement index, the cubic strength and the stirrup characteristic value of concrete outer of steel tube. The accuracy of the formula of axial compressive strength of composite columns provided by CECS 188:2005 is proved by the test results of this paper.

Mechanical Properties of High Strength Concrete Filled Steel Tubular Columns

2012 ◽  
Vol 472-475 ◽  
pp. 1119-1125 ◽  
Author(s):  
Ke Feng Tan ◽  
Lai Bao Liu
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
High Strength Concrete ◽  
High Strength ◽  
Steel Tube ◽  
Strength Increase ◽  
Strength Concrete ◽  
Tubular Columns ◽  
Short Columns ◽  
Core Concrete

This study investigated the mechanical properties of High Strength Concrete filled steel tubular short columns (HSCFSTSC) with length to diameter ratio (L/D) of 3.5.The strength of concrete used to fill the steel tubular columns ranged from 54MPa to 116MPa. The test results showed that using a steel tube as confinement can significantly improve the ductility and compressive strength of core concrete. The magnitude of compressive strength increase of core concrete was directly proportional to the Confinement Index, , and the extent of improvement of the ductility increases as the  increases. For thoroughly improving the ductility of core concrete, the Confinement Index  should be equal or larger than 0.48. The formula used to calculate the load bearing capacity of HSCFSTSC was given out.

scholarly journals Experimental study on comparison of the plasticizer effect on PVA fiber reinforcement concrete

2021 ◽  
Vol 309 ◽  
pp. 01180
Author(s):  
K. Hemalatha ◽  
V Mallikarjuna Reddy ◽  
Guntupally Nikhil
Keyword(s):  
Experimental Study ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Concrete Structure ◽  
High Strength Concrete ◽  
High Strength ◽  
Split Tensile Strength ◽  
Strength Concrete ◽  
Different Types ◽  
Pva Fiber

A high-strength Concrete structure is what everyone tries to achieve through the project. So many studies are being studied with various types of fibers. In this paper, I have used PVA fibers with two different types of plasticizers. The main purpose of this study is to find the amount of plasticizer to be used and which is feasible to be used for different proportions of PVA fibers. We have casted 0.125%, 0.250%, 0.375%, and 0.50% of PVA fiber in the proportion of the weight of cement. We have also studied their compressive strength and split tensile strength. By which we have decided the optimum dosage of plasticizes to be used for the different proportions of PVA fiber.

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