Shear Behaviour and Analysis of Partially Prestressed I-Girders

Author: Tan, K H;Tong, K

Date published

N/A

Price

Standard: £9 + VAT
Members/Subscribers: Free

Buy Now
Back to Previous

Shear Behaviour and Analysis of Partially Prestressed I-Girders

The Structural Engineer
Shear Behaviour and Analysis of Partially Prestressed I-Girders
Date published

N/A

Author

Tan, K H;Tong, K

Price

Standard: £9 + VAT
Members/Subscribers: Free

Buy Now
Author

Tan, K H;Tong, K

Six large, pretensioned concrete girders of I-shape cross-section were tested to failure. Two parameters were introduced, i.e. shearspan- to-effective-depth ratio and partial prestressing ratio. The test results are timely and useful, as, to the authors’ knowledge, there is no current Code provision for the design of prestressed deep girders. A strut-and-tie approach is also proposed, and the failure criteria are based on Mohr-Coulomb’s equation for biaxial compression-tension stress state and Kupfer's equations for biaxial compression-compression stress state. The accuracy of
the method is verifled by experimental results from six girders. Comparison study shows that the model predictions are in good agreement with test results.

K.H. Tan and K. Tong

Additional information

Format:
PDF
Publisher:
The Institution of Structural Engineers

Tags

Issue 23/24

Related Resources & Events

The Structural Engineer
<h4>Correspondence on Large-Scale Tests on Slender Reinforced Concrete Columns by Dr P.H. Chuang and Pro</h4>

Correspondence on Large-Scale Tests on Slender Reinforced Concrete Columns by Dr P.H. Chuang and Pro

Mr A. N. Beal (M) (Thomason Partnership) This paper adds valuable experimental results to the database of concrete column tests, particularly for very high strength concrete. However, there is an unfortunate, misleading statement in the synopsis: 'These tests ... have indicated that the Codes are safe design documents for concrete strengths as high as 96N/mm²'. In fact, the tests reported in the paper covered only short-term loading and the 'conclusions' state that 'BS 8110 might not be conservative enough for long-term loading...'. Outside of the laboratory, very few concrete columns are subjected to only short-term loading: indeed, most real concrete columns are subjected to high proportions of long-term load, so this is a point of fundamental importance.

Price - £9
The Structural Engineer
<h4>Bursting Forces in Reinforced Concrete Columns</h4>

Bursting Forces in Reinforced Concrete Columns

Bursting forces in columns are caused by cranked vertical reinforcement. Although these bursting forces are well documented, few Codes of Practice deal with the effects adequately. British, South African and American Codes are critically evaluated in this regard. An equation is developed to determine the amount of bursting steel required which is in the form of column ties. A finite element study and columns tests are carried out to evaluate the effects of the bursting forces and as a contribution to the design process. Recommendations are also given describing practical measures for design. M. Gohnert, C. Morris and K. Webber

Author - Gohnert, M;Morris, C;Webber, K
Price - £9
The Structural Engineer
<h4>Interview. Taking the Lead</h4>

Interview. Taking the Lead

Heather Stanley recently became Managing Director of Yolles Partnership, the Canadian company, an unusual lead position for a woman in her mid-thirties in the construction industry. As Director of its first office in the UK since 1997, she is responsible for 22 staff. The post offered work on larger buildings and more management experience than her jobs to date. Kathy Stansfield

Price - £9