Experimental investigation on shear steel bars in CRTS II slab ballastless track under low-cyclic reciprocating load

2020 ◽  
Vol 255 ◽  
pp. 119425
Author(s):  
Yulin Feng ◽  
Lizhong Jiang ◽  
Wangbao Zhou ◽  
Jianping Han ◽  
Yuntai Zhang ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Ballastless Track ◽  
Steel Bars

Experimental Investigation on Steel H-Beam Prestressed with Externally High Strength Steel Bars

2014 ◽  
Vol 578-579 ◽  
pp. 155-159 ◽  
Author(s):  
Peng Cheng Zhu ◽  
Ming Kang Gou ◽  
Yin Zhi Zhou
Keyword(s):  
Experimental Investigation ◽  
Bearing Capacity ◽  
High Strength Steel ◽  
High Strength ◽  
Ultimate Bearing Capacity ◽  
Prestressing Force ◽  
Steel Bars ◽  
Post Tensioning ◽  
H Beam ◽  
Externally Prestressing

The external post-tensioning technique has been commonly used in the construction field because it facilitates the analysis of structures and is widely applicable for many types of structures. In this research, 12 steel H-beams were built and tested in terms of the amount of tendon or prestressing force. The results show that the externally prestressing method can increase ultimate bearing capacity of the beams. The prestressing force is the significant factor that influence the strengthening of steel H-beams. However, the amount of deviators cannot significantly influence the bearing capacity.

Development Length Comparison between Australian Codes and Chinese Code on 500MPa Steel Bars

2014 ◽  
Vol 584-586 ◽  
pp. 889-893
Author(s):  
Jing Wen Su ◽  
Hai Tao Li ◽  
Li Xin Liu ◽  
A.J. Deeks ◽  
Fan Wu ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Test Data ◽  
Test Results ◽  
Development Length ◽  
Anchorage Length ◽  
Steel Bar ◽  
Eurocode 2 ◽  
Steel Bars ◽  
Code Provisions ◽  
Good Agreement

This paper presents development length comparison between Chinese and Australian codes study on HRB500 steel bars in concrete. After introducing the existing code provisions about the anchorage length and experimental investigation of tensile HRB500 steel bars, the calculation approaches in different codes are compared with the test data. Additionally, the development length of tensile HRB500 reinforcement bars in AS3600-2001, Proposed Revision of AS3600, GB50010-2010 and the calculation equation proposed from test results are compared with each other in beams and slabs. It is proved that AS3600-2001 is inconsistent with other standards and the tests results and needs to be revised, while the Proposed Revision of AS3600 provided a good agreement with the test data and brings the code into line with other international codes, particularly Eurocode 2. Moreover, the Proposed Revision of AS3600 is a significant improvement on the method in AS3600-2001. The anchorage length formula in GB50010-2010 can still be used for designing HRB500 steel bar.

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