Available rotation capacity of composite bridge plate girders under negative moment and shear

2005 ◽  
Vol 61 (3) ◽  
pp. 305-327 ◽  
Author(s):  
Ahti Lääne ◽  
Jean-Paul Lebet
Keyword(s):  
Plate Girders ◽  
Rotation Capacity ◽  
Bridge Plate ◽  
Negative Moment ◽  
Composite Bridge

scholarly journals COMPARATIVE ANALYSIS OF PLATE GIRDER DESIGNS ON NON-COMPOSITE BRIDGES BETWEEN AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS 2017 CODE WITH SNI 1729:2015 CODE

Neutron ◽  
2020 ◽  
Vol 20 (01) ◽  
pp. 16-32
Author(s):  
Donald Essen ◽  
Nurul Musyafa Ulul Hidayah
Keyword(s):  
Bridge Design ◽  
Plate Girders ◽  
Design Specifications ◽  
Bridge Plate ◽  
Composite Bridges ◽  
Composite Bridge ◽  
The Stability ◽  
Object Of Study ◽  
Aashto Lrfd ◽  
Plate Girder

This study aims to the structural design of non-composite plate girders using AASHTO LRFD Bridge Design Specifications 2017 code compared to SNI 1729:2015 code. The span of the bridge used as the object of study is 40 meters with a width of 10 meters. In this study, plate girders are designed based on AASHTO code and SNI code, then also given the loading according to SNI 1725:2016 code, and in the analysis of the structure using CSi Bridge software to get the value of internal forces i.e. Moment Force (Mu) of 3595.38 kNm and Shear Force (Vu) of 449.9968 kNm. The results obtained from this study are the non-composite bridge plate girder designed with AASHTO LRFD Bridge Design Specifications 2017 and SNI 1729:2015 obtained the stability requirements of strong boundary conditions flexure design. Then obtained Nominal Moment value (ØMn) of 8016.843 kNm for AASHTO LRFD Bridge Design Specifications 2017 and Nominal Moment value (ØMn) of 6081.97 kNm for SNI 1729:2015. From the values obtained it can be concluded that the two regulations produce a safe and strong plan as per the applicable provisions namely Moment (Mu <ØMn).

scholarly journals On Flexural Performance of Girder-To-Girder Wet Joint for Lightweight Steel-UHPC Composite Bridge

2020 ◽  
Vol 10 (4) ◽  
pp. 1335 ◽  
Author(s):  
Shuwen Deng ◽  
Xudong Shao ◽  
Banfu Yan ◽  
Yan Wang ◽  
Huihui Li
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Bending Moment ◽  
Inhibitory Effect ◽  
Careful Consideration ◽  
Joint Interface ◽  
Test Results ◽  
Negative Moment ◽  
Composite Bridge ◽  
Negative Bending

Joints are always the focus of the precast structure for accelerated bridge construction. In this paper, a girder-to-girder joint suitable for steel-ultra-high-performance concrete (UHPC) lightweight composite bridge (LWCB) is proposed. Two flexural tests were conducted to verify the effectiveness of the proposed T-shaped girder-to-girder joint. The test results indicated that: (1) The T-shaped joint has a better cracking resistance than the traditional I-shaped joint; (2) The weak interfaces of the T-shaped joint are set in the areas with relatively lower negative bending moment, and thus the cracking risk could be decreased drastically; (3) The natural curing scheme for the joint is feasible, and the reinforcement has a very large inhibitory effect on the UHPC material shrinkage; The joint interface is the weak region of the LWCB, which requires careful consideration in future designs. Based on the experimental test results, the design and calculation methods for the deflection, crack width, and ultimate flexural capacity in the negative moment region of LWCB were presented.

Steel Bridges with Double-Composite Action: Innovative Design

2000 ◽  
Vol 1696 (1) ◽  
pp. 299-309 ◽  
Author(s):  
Steven L. Stroh ◽  
Rajan Sen
Keyword(s):  
Cost Savings ◽  
Cost Effective ◽  
The United States ◽  
South Florida ◽  
Steel Bridge ◽  
Innovative Design ◽  
Composite Action ◽  
Design Concepts ◽  
Negative Moment ◽  
Composite Bridge

Bridge engineers are continually faced with the challenge of providing efficient and cost-effective structures. In particular, the Florida Department of Transportation has recognized the need to develop economical bridge configurations in the medium-span range of 200- to 400-ft (60.96-to 121.92-m) spans and authorized a research project at the University of South Florida to identify and develop innovative design concepts within this span range. The study identified the concept of a steel bridge with double-composite action as an innovative bridge concept with the potential for significant cost savings compared with conventional modes of construction. This bridge type has been used with good success in Europe, but to the authors’ knowledge it has not been used in the United States. In addition to a composite concrete top slab, the double-composite bridge concept utilizes a composite concrete bottom slab in the negative moment regions. The result is provision of a design meeting compact requirements throughout, increased stiffness with corresponding decrease in fatigue stress range and deflections, savings in cross frames, and savings in flange material. The design implications of this system are examined, including redistribution effects due to creep and shrinkage, implications of different construction sequences, and strength and serviceability issues. Trial designs are presented, including both plate and box girder type structures, and design considerations are discussed. A prototype structure is identified for further development of the double-composite concept.

scholarly journals Load Capacities of Steel and Concrete Composite Bridge Deck Slab with Haunch

2017 ◽  
Vol 2017 ◽  
pp. 1-15 ◽  
Author(s):  
Xiaoqing Xu ◽  
Yuqing Liu
Keyword(s):  
Reinforced Concrete ◽  
Bridge Deck ◽  
Shear Connectors ◽  
Design Load ◽  
Unfavourable Effect ◽  
Different Types ◽  
Negative Moment ◽  
Composite Bridge ◽  
Composite Bridge Deck ◽  
Deck Slab

An innovative steel and concrete composite bridge deck slab using bent bars and epoxy as shear connectors was proposed. Four slab specimens with different types of concrete were fabricated and tested to study the load capacities of positive and negative moment regions of the slabs. The cracking and ultimate loads of the specimens were recorded and compared with the results calculated through the reinforced concrete theory and with the design load of the bridge deck slab. It was found that reinforced concrete theory can generally be applied for the proposed slab as well. The effectiveness of the shear connector design of the proposed slab was validated. Meanwhile, the unfavourable effect of the haunch on the shear capacities of the positive moment region of steel and concrete composite bridge deck slab was observed.

Experimental Study on Ultimate Behavior at Negative Moment Regions of Composite Bridges

2005 ◽  
Vol 1928 (1) ◽  
pp. 2-12
Author(s):  
Il-Sang Ahn ◽  
Methee Chiewanichakorn ◽  
Aaron F. Nottis ◽  
Jeffrey A. Carpenter ◽  
Stuart S. Chen ◽  
...  
Keyword(s):  
Plastic Hinge ◽  
Experimental Results ◽  
Steel Girder ◽  
Internal Support ◽  
Composite Bridges ◽  
Negative Moment ◽  
Composite Bridge ◽  
Factor Design ◽  
Load And Resistance Factor ◽  
Concrete Deck

This paper presents experimental results of the ultimate behavior of the negative moment region of a quarter-scale full model and a half-scale subassemblage model of a two-span continuous composite bridge of concrete deck slab on steel girder. The two specimens are based on a prototype bridge that has a large girder spacing [3,800 mm (13 ft)]. At the ultimate state, it is shown that a larger portion of the deck is activated to resist tensile stress compared with the effective width specified in the AASHTO load and resistance factor design bridge specifications. Also, a plastic hinge that forms at the internal support has enough rotational capacity (ductility) to enable development of a second plastic hinge within the span. Experimental results show a reasonably good match with accompanying finite element method analyses.

scholarly journals Experimentally Validated Nonlinear Analysis of Bridge Plate Girders with Deformations

2015 ◽  
Vol 37 (3) ◽  
pp. 53-61 ◽  
Author(s):  
Mieszko Kużawa ◽  
Jan Bień
Keyword(s):  
Nonlinear Analysis ◽  
Load Capacity ◽  
Shear Capacity ◽  
Shear Load ◽  
Structural Behaviour ◽  
Plate Girders ◽  
Bridge Plate ◽  
Experimental Laboratory ◽  
The University

Abstract Comprehensive methodology of numerical nonlinear analysis of the consecutive phases in the structural behaviour of bridge plate girders with deformations is presented. The analysis concerns all stages of structure loading until failure and especially determination of the ultimate shear load capacity. Verification and validation of the numerical procedures proposed is based on comparison of the calculated results with effects of experimental laboratory shear capacity tests of plate girders carried out at the University of Ljubljana.

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