Experimental study on a new joint for prestressed concrete composite bridge with steel truss web

Title: Experimental study on a new joint for prestressed concrete composite bridge with steel truss web
Author(s): K. Furuichi, M. Yamamura, H. Nagumo, K. Yoshida
Paper category : conference
Book title: International Symposium on Connections between Steel and Concrete
Editor(s): R. Eligehausen
Print-ISBN: 2-912143-25-X
e-ISBN: 2351580346
Publisher: RILEM Publications SARL
Publication year: 2001
Pages: 1250 - 1259
Total Pages: 10
Nb references: 9
Language: English

Abstract: A composite truss bridge has been developed that comprises concrete upper and lower slabs and steel truss as the web. This structure rationalizes structural performances, reduces weight and labor costs.
A structure is proposed to simplify the cantilever construction, and to utilize both steel and concrete effectively to realize a new composite joint structure for a composite truss bridge.
This joint structure is achieved by inserting the diagonal tubular steel into a box-shaped steel structure called a steel BOX made from welded perforated steel plates. The force flow in this joint structure was expected to be complicated. Therefore, static destructive tests were carried out using scale models to conceive their force propagation conditions and ultimate strengths, and to obtain basic data for designing.
These tests confirmed that the force was propagated in the steel BOX until shear cracks occurred at the joint. At this point, re-bars in the joint carried some of the forces. It was thus confirmed that varying both quantity and placement of re-bars could control the ultimate strength at the joint.

Online publication: 2009-12-31
Publication type : full_text
Public price (Euros): 0.00