Lateral Load Effect on Steel Arch Bridge Design

<p>The Frances Appleton Pedestrian Bridge is an innovative steel arch bridge with a 69m main span and curvilinear approaches along the Charles River in Boston, Massachusetts. It is the first Americans with Disabilities Act fully accessible 4.3m wide bridge connecting Boston’s historic Beacon Hill neighborhood to the Esplanade Park and Charles River. An overall architectural and structural theme was followed in the design of all bridge components including the main arch, Y shaped approach piers, circular stairs and curved ramps. The bridge is light, elegant and well-integrated into the landscape complementing an adjacent historic landmark bridge and seamlessly blending into the waterfront context.</p>

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Bi-Directional Evolutionary Structural Optimization in Conceptual Bridge Design

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.256-259.1658 ◽

2012 ◽

Vol 256-259 ◽

pp. 1658-1664

Author(s):

Jian Xu ◽

Jian Yuan Sun ◽

Yu Long Shui

Keyword(s):

Structural Optimization ◽

Bridge Pier ◽

Main Beam ◽

Force Transmission ◽

Bridge Design ◽

Arch Bridge ◽

Evolutionary Structural Optimization ◽

Arch Bridges ◽

Tied Arch Bridge

The principle and procedure of bi-directional evolutionary structural optimization (BESO) are stated in detail. A program based on BESO is introduced in conceptual bridge design. Topology optimizations are achieved for deck arch bridges with different rise-to-span ratios, half-through arch bridge, through tied arch bridge, bridge pier and bridge main beam. The results demonstrate rational structures with well-distributed stress and smooth force transmission, which indicates the efficient of the method.

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Model Test for a New Chorded Arch Bridge

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.255-260.1061 ◽

2011 ◽

Vol 255-260 ◽

pp. 1061-1064

Author(s):

Yan Mei Gao ◽

Zhi Xiang Zhou

Keyword(s):

Experimental Data ◽

Theoretical Analysis ◽

Model Test ◽

Organic Glass ◽

Bridge Design ◽

Arch Bridge ◽

Construction Scheme ◽

New Knowledge ◽

Mechanical Performances ◽

Design And Construction

A new chorded arch bridge is put forward by Professor Zhixiang zhou of Chongqing Jiaotong University. For further exploration by the bridge design and construction scheme of the feasibility and rationality, and to verify the correctness of the theoretical analysis and probe the effective measures to deal with the closure error during in the rotating construction, a model made with by organic glass (ratio of the model to original bridge is 1/10) is has been experimented. In this test, the rotating down procedure of the construction was simulated and studied, possible closure errors were tested and corresponding measures are proposed, and the mechanical performances at key stages of construction and service were examined. Plentiful experimental data and some new knowledge about the chorded arch bridge were obtained from this test, which provided reliable technical guarantee for the actual construction.

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Design and Analysis of Slanting Cross Special-Shaped Arch Bridge

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.255-260.786 ◽

2011 ◽

Vol 255-260 ◽

pp. 786-791

Author(s):

Hui Li Wang ◽

Rong Bin Jiang ◽

Zhe Pan

Keyword(s):

Urban Landscape ◽

Design Method ◽

Lateral Load ◽

Wind Load ◽

Static Characteristic ◽

Horizontal Component ◽

Arch Bridge ◽

Load Combination

The slanting cross special-shaped arch bridge is fit for urban landscape bridge, with unique design and updated style. Based on Tongtai Bridge in Zhangjiakou, the design method, static characteristic, and stability of the bridge are introduced. The stress envelopes of girder and arch under the most unfavorable load combination, the arch stability of various stages are obtained by spacial FEM. From the results, a conclusion can be drawn that the lateral load is governing load for slanting cross special-shaped arch bridge because of horizontal component of suspender and wind load.

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