A review of the anti seismic system

Received 26 July ; accepted 21 September ; published 24 September ABSTRACT In general, of construction projects, utility anti-seismic technologies, such as hydraulic tie rod or tie rod structural vibration control system, assess efficiency and safety in node structures from earthquakes risk. According the building construction framework, we exanimate, with experiments, the mechanism of reaction and a patent idea of anti-seismic system with potential conclusions, through using different methods, such as of horizontal seismic insulation, design with elongated rigid columns and design columns without ductility. We provide that we made strong foundation in earthquakes, solar-wind and utility power structural systems and tornados effects in lightweight constructions. We suggest that may fix to existing or under design construction like bridges.

A review of the anti seismic system

October 3rd, We have invented a method and mechanism that joins the roof roof construction with the ground.

The ultimate anti seismic system

For example, houses, skyscrapersdamswindmillsbridgesroads. Even protects and lightweight construction of tornadoes. Use also as anchor for the support of ground slope on highways. Brief description of the invention The principal object of the hydraulic tie rod for construction projects of the present invention as well as of the method for constructing building structures utilizing the hydraulic tie rod of the present invention is to minimise the aforesaid problems associated with the safety of construction structures in the event of natural phenomena such as earthquakes, hurricanes and very high lateral winds.

According to the present invention, this can be achieved by a continuous pre-stressing pulling of both the building structure towards the ground and of the ground towards the structure, making these two parts one body like a sandwich.

Said pre-stressing is applied by means of the mechanism of the hydraulic tie rod for construction projects. The pulling force applied to the steel cable by means of the hydraulic mechanism and the reaction to such pulling from the fixed anchor at the other end of it generate the desired compression in the construction project.

The skeleton of a building consists of the columns vertical parts and the girders and slabs horizontal parts. The girders and slabs are joined at the nodes. Under normal conditions, all loading is vertical. When an earthquake occurs, additional horizontal loading is placed on the skeleton.

The resultant effect of horizontal plus vertical loading puts strain on the nodes. It alters their angle from 90 degrees, creating at times acute and at other times obtuse angles.

The vertical static loads equilibrate with the reaction of the ground.

Search our Repository

The horizontal earthquake load exerts a lifting effect on the bases of the columns. In addition, due to the elasticity of the main body of the columns, the earthquake acts by shifting the heights of each plate by a different amplitude and a different phase.

That is, the upper plates shift more than the lower ones. The modal shifts of the skeleton are many, so many that the differing, shifting directions of the earthquake deform and destroy the skeleton.

The ideal situation would be if we could construct a building skeleton where, during an earthquake all the plates would shift by the same amplitude as the ground without differing phases.

In this way the shape will be preserved and we would not have any deformation of the frame, hence no damage.Vibration tests. These are different from a seismic event because they are predictable events in a given range, instead the anti-seismic events are unavoidable, non-constant and do not have a precise range.

A review of the anti seismic system

Vibrations can last for hours or be a constant condition; seismic event is a short, impulsive event. In general, of construction projects, utility anti-seismic technologies, such as hydraulic tie rod or tie rod structural vibration control system, assess efficiency and safety in node structures from earthquakes risk.

According the building construction framework, we exanimate, with experiments, the mechanism of reaction and a patent idea of anti . Vibration, Control-System, Anti-Seismic, Earthquakes, Construction 1.

Introduction The decade’s earthquakes around the world have put first priority of the major social and economic issue of the seismic behavior and the overall seismic protection of structures against earthquake disaster.

Due to . COMMERCIAL Page 1 of7 GENERAL PLAN REVIEW REQUIREMENTS Cover Letter A letter (or an authorized pre-printed form) authorizing CCIS to perform the Plan Review is required. Journal of Vibroengineering (JVE) ISSN (Print) , ISSN (Online) is a prestigious peer reviewed International Journal specializing in theoretical and practical aspects of Vibration Engineering.

Antiseismic - Wiktionary

It is indexed in Clarivative Analytics (Emerging Sources Citation Index - ESCI) and other major scientific databases. Established in and published 8 times a year (every months.

A review of the anti seismic system

Project The system comprises three major components a sand bed, a pair of concrete slabs, an arrey of springs and shock absorbers.

A sand bed seismic absorption system is used to minimize and absorb the seismic waves during an earthquake.

Research Review on the Anti-Seismic Characteristics of Truss Bridge Structure