The present study deals with the structural safety evaluation of a 50-year-old river bridge, called Baghetto Bridge, located in north Italy on Adda River. Generally speaking, hydraulic processes are main cause bridge failure. Scour and hydrodynamic loads have been largely studied by engineering community; however, practice, integration analysis is often missing. aim this research to provide mul...

Surface immunoglobulin-bearing cells were selected from suspensions of human tonsil cells by the reverse immune cytoadherence technique. The method employed a hybrid antibody directed against Ig on lymphoid cells and against ferritin bound to sheep red blood cells (SRBC). Only 6% of the cells formed rosettes. When subjected to electron microscopy they were shown to consist of a morphologically ...

Bridge behavior is highly dependent upon the movement mechanisms present throughout the structure. These mechanisms (e.g. bearing, joints, etc.) have a substantial impact on the long-term durability and potential safety of the structure. A major distinguisher between the varieties of movement systems is their operating timescale. In some cases, they function rapidly, within fractions of a secon...

13 Vertical displacements are among the most important technical parameters to evaluate the health 14 status of a bridge structure and to verify its bearing capacity. Several methods, both conventional 15 and innovative, are used for structural displacement monitoring; no one of these does allow, at the 16 same time, precision, automation, long term and dynamic monitoring without using high cos...

The physical and mechanical properties of the reservoir bank slope deteriorate under fluctuation water level, causing debonding slippage, which can produce different degrees damage to bridge foundation, piers, superstructure, a condition that is difficult treat. In this paper, for Yangtze River Bridge instability problem in Three Gorges area, numerical model was established using finite element...

general kind of encroachment of river is constructing a bridge on it. purpose of encroachment of river is occupation part of river and flood plain for constructing bridge. often being economical of bridge innovation affirmated that most of encroachment take place to river and flood plain, which this encroachment can be in form of embankment in flood plain of river or into the main bed of river ...

In recent years, the construction of a CFST arch bridge has developed rapidly; however, as kind structural system dominated by compression, with increase material strength and span, stability main become more important. this paper, finite element method is used to analyze hanger force long-span bridge. Combined Shenzhen Rainbow Bridge project, axial hanger, internal force, are studied. establis...

Within the past decade, seismic isolation systems have gained rapid popularity in the earthquake resistant design of bridge structures. This popularity has come in response to the inadequacy of earlier seismic design and retrofit methodologies. The mechanical shortcomings and subsequent failure mechanisms associated with the early elastic seismic design philosophy are first presented, followed ...

The most significant artifacts that transfer the cultural heritage of past civilizations to present are historical structures. Historical bridges great importance in terms transportation, trade and architecture from present. Some these structures have been destroyed by natural disasters or suffered structural damage. Especially earthquakes cause damage In this study, earthquake behavior Karaz B...

the problem of a footing on slope is encountered regularly in engineering practice, with some noteworthy examples being bridge abutments and basement excavations. in this paper, the bearing capacity of a footing replaced near a slope crest was studied. model tests were carried out using square model footing of 100 mm width. a tank 0.3 m deep, 0.6 m wide, and 0.9 m long was used for the model be...