abstract   iran has many historic cities and villages with economic, historic and cultural values facing with many seismic faults. there have been no comprehensive studies about reducing the vulnerability of the historic villages, and the available documents describe the retrofitting experiments only about the single buildings.  lack of a comprehensive look at the subject leads to the loss of t...

Synopsis Much effort is being deployed in maintaining electricity generation from the UK’s fleet of nuclear power stations with safety being a prime consideration. Up-to-date safety standards demand resistance to hazards which normally include seismic and blast loading, yet many stations were built before such considerations became mandatory. To extend the generating life of older nuclear power...

In this paper, the authors give a brief introduction to the earthquake monitoring system newly developed for two dams of a reservoir in North China. The two embankment dams are 66, 56 meters high and 960, 1008 meters long respectively. One of the dams suffered from severe landslide because of the 1976 Tangshan Earthquake, the design PGA of this site is set to 0.25g. Because of the complexity, i...

[1] Seismic activity began to slightly increase during the construction but rose sharply upon the completion of the tallest building in the world, the Taipei 101, which stands at 508 m in the Taipei basin, where local seismicity had historically very low. Besides an increase in both seismic energy and the number of micro-earthquakes, two felt earthquakes astonishingly occurred beneath the compl...

Since the beginning of civilization, history tells of the movement of art pieces, monuments and manufacts from site to site. The causes are multiple: the displacements due to the "spoils of war", ordered by kings and emperors, the movements caused by the need for reuse, especially in the early Christian period, and so forth. Considerations about the events of the past, yield a possible strategy...

Silos generally work as storage structures between supply and demand for various goods, and their structural safety has long been of interest to the civil engineering profession. This is especially true for dynamically loaded silos, e.g., in case of seismic excitation. Particularly thin-walled cylindrical silos are highly vulnerable to seismic induced pressures, which can cause critical bucklin...

Minor faults, subsidence columns, coal tunnels and gob are very important in coal mining because they can cause flooding accidents, broken coal beds, added fissures, and gas accumulation. All of these factors will increase coal mining risk. In addition, minor faults also affect the design of roadways. In this article, we have achieved satisfactory results in identifying minor faults, subsidence...

Continuous rigid frame bridge is a common type of bridge in California, where is a seismically active areas. Main structural features of the bridge, including asymmetry, hinge structure, concretion of girder and piers affect the seismic response of the bridge significantly. In order to evaluate the safety of the bridge under earthquake, the nonlinear models of girder, limiting steels in hinge, ...

The response of submerged slopes on the continental shelf to seismic or storm loading has become an important element in the risk assessment for offshore structures and “local” tsunami hazards worldwide. The geological profile of these slopes typically includes normally consolidated to lightly overconsolidated soft cohesive soils with layer thickness ranging from a few meters to hundreds of met...