Structural Analysis of Historic Masonry Arch Bridges: Case Study of Clemente Bridge on Savio River

2011 ◽  
Vol 488-489 ◽  
pp. 674-677 ◽  
Author(s):  
Lucio Nobile ◽  
Veronica Bartolomeo ◽  
Mario Bonagura
Keyword(s):  
18Th Century ◽  
Limit State ◽  
Masonry Arch ◽  
Historic Masonry ◽  
Bridge Safety ◽  
Live Loads ◽  
Vehicle Loads ◽  
Arch Bridges ◽  
Masonry Arch Bridge

The Clemente Bridge is a multi-span masonry arch bridge built during the 18th century on Savio River in Cesena. The aim of this paper is to assess its static capacity under live loads prescribed by Italian Standards in force. The analysis is performed employing RING 3.0, a computational tool based on Limit State Analysis. This method allows to individuate the minimum adequacy factor, that is the multiplier on vehicle loads required to cause collapse. In this way, a first assessment on the bridge safety can be obtained.

scholarly journals CAPACITY ASSESSMENT OF ANCIENT MASONRY ARCH BRIDGE: A CASE STUDY

2020 ◽  
Vol 7 (2) ◽  
Author(s):  
Jigme Dorji ◽  
Tatheer Zahra ◽  
David P. Thambiratnam
Keyword(s):  
Limit State ◽  
Capacity Assessment ◽  
Analysis Method ◽  
Masonry Arch ◽  
Railway Bridges ◽  
Margin Of Safety ◽  
Arch Bridges ◽  
Masonry Arch Bridge ◽  
Current Operating

Most masonry arch railway bridges in the world are servicing the communities well beyond their intended design lives. However, these bridges would have undergone numerous deteriorations over the period of several decades of service life. The asset owners of these bridges are confronted with the decision over whether to continue servicing or decommissioning these bridges. Such decisions are critical from safety and economic points of views, and it can be addressed only by conducting a proper investigation of such structures. This paper presents the capacity assessment of typical in-service masonry arch bridges based on properties of masonry obtained through core testing. The bridges were modeled and analyzed for the ultimate capacity through limit state analysis method. Important parameters such as influence of backfill properties, strength of masonry, and span-to-rise ratio are discussed. The results indicate that the investigated bridges can sustain the current operating loads with a reasonable margin of safety index.

Rehabilitation of Historic Railway Masonry Arch Bridge: A Case Study

2015 ◽  
Vol 21 (4-6) ◽  
pp. 107-117
Author(s):  
S. K. Elwan
Keyword(s):  
Finite Element ◽  
Water Flow Rate ◽  
Construction Materials ◽  
Internal Stresses ◽  
Masonry Arch ◽  
Element Analysis ◽  
Arch Bridge ◽  
Historic Masonry ◽  
Masonry Arch Bridge

Abstract This research outlines a case study for the structural rehabilitation of a historic masonry arch bridge. The major part of the railway bridge was destroyed due to high flood. The remaining parts were evaluated from structural point of view. A detailed investigation for the historic and current state of the bridge was performed. A precise description for the structural system, main elements, method of construction, materials used, and internal component was done. Also, 3D finite element analysis was conducted for the proposed rehabilitated bridge in order to identify the level of internal stresses in different structural components of the arch bridge under the effect of dead loads, live loads, wind loads, seismic loads, water flow rate, and temperature changes. The results of the finite element modeling together with the structural studies and investigations were used to develop structural guidelines for the rehabilitation project taking into account the proposed new usage as a historic walkway and the hydrological requirements as a structure over flood flow channel.

A Survey on Formation Multi Unequal Span Masonry Bridges with Curve Shaped Deck: A Case Study on Khan Bridge in Iran

2013 ◽  
Vol 405-408 ◽  
pp. 1606-1610
Author(s):  
Zohreh Zahiri ◽  
Dariush Heydari Beni
Keyword(s):  
Structural Stability ◽  
Masonry Arch ◽  
Arch Bridge ◽  
South West ◽  
River Bed ◽  
Arch Bridges ◽  
Masonry Arch Bridge

Masonry arch bridges with unequal spans are outstanding kinds of masonry bridges which are widespread in historic countries spatially in Iran. The differences in dimension of arches which mostly lead to formation of curve shaped decks in such bridges, brings a particular architecture for masonry arch bridge. However the elements which bring different lengths and heights for spans have not yet been studied. In this research by geometrical and structural survey on Khan Bridge, a kind of multi unequal span bridge in south west of Iran, it is demonstrated that especial conditions of the case lead to formation of its architecture. It is illustrated that shape of river bed, hydraulic and geotectonic factors and structural stability, are of paramount importance in terms of featuring the architecture of multi unequal span bridges with curve shaped deck.

FEM/DEM Approach for the Analysis of Masonry Arch Bridges

2016 ◽  
pp. 367-392 ◽  
Author(s):  
Emanuele Reccia ◽  
Antonella Cecchi ◽  
Gabriele Milani
Keyword(s):  
Elastic Strain ◽  
Limit State ◽  
Numerical Approach ◽  
State Behavior ◽  
Masonry Arch ◽  
Preliminary Validation ◽  
Load Carrying ◽  
Arch Bridges ◽  
Embedded Crack ◽  
External Loads

The problem of masonry arch bridges load carrying capacity is studied by means of a coupled FEM/DEM 2D approach. The numerical model relies into a triangular discretization of the domain with embedded crack elements that activate whenever the peak strength is reached. The proposed approach can be regarded as a combination between Finite Elements allowing for the reproduction of elastic strain into continuum and DEM, suitable to model frictional cohesive behavior exhibited by masonry structures even at very low levels of external loads. The aforementioned numerical approach is applied to masonry arch bridges interacting with infill. A preliminary validation of the procedure is addressed for the prediction of the masonry arches limit state behavior where the stones are supposed infinite resistant and plastic hinges can occur exclusively on mortar joints, modeled as cohesive frictional interfaces. The sensitivity of the infill role varying mechanical properties of the infill is extensively discussed.

Calculation Analysis of Strengthening Arch Bridge Structure Based on Release Energy Method

2011 ◽  
Vol 71-78 ◽  
pp. 1732-1735
Author(s):  
Qing Ping Jin ◽  
Xian Bao Wang ◽  
Xue Jun Li
Keyword(s):  
Energy Method ◽  
Carrying Capacity ◽  
Safety Margin ◽  
Bridge Structure ◽  
Masonry Arch ◽  
Arch Bridge ◽  
Before And After ◽  
Arch Bridges ◽  
Calculation Analysis ◽  
Masonry Arch Bridge

The arch bridges were used widely for the good performance under the pressure in China. It was very sensitive to some factors as temperature , settlement etc so that the arch bridges occurred the disease, carrying capacity reduction or even structure destruction etc.In the paper, based on the characteristics of masonry arch bridges, reinforcement method was analyzed, according to the situation of a masonry arch bridge, release energy method was applied to strengthening project. By comparing the stress and the strain before and after the strengthening project, some conclusions could be drawn that the bridge structure carrying capacity had been raised, the energy accumulated in the bridge structure was released, the structure safety margin was improved.

Potential scour evaluation around piers of historical masonry arch bridges: a case study

2018 ◽  
Vol 171 (1) ◽  
pp. 37-48 ◽  
Author(s):  
Milad Latifi ◽  
Mohammad R. Chamani ◽  
Amir M. Halabian ◽  
Mohammad R. Jafari
Keyword(s):  
Masonry Arch ◽  
Historical Masonry ◽  
Arch Bridges
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