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New Strategy of Earthquake Prediction
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

It is known that earthquake prediction means revealing the place and defining the time and force of the expected earthquake.

The strategy of earthquake prediction developed during the last hundred years Annabel to define the time and force of the expected earthquake, but it is much more difficult to reveal exactly the place of the source of the earthquake . So the problem of earthquake prediction isn’t finally solved.
Erection of Reinforced Concrete Buildings and Constructions by Tensioning of Reinforcement on building Sites (including the Construction of Buildings in Regions of high Seismicity)
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

In world practice monolithic girder floors with span more than 6 m are manufactured by prestressed reinforced concrete. Moreover there is a tendency to significant growth of such structures. The reinforcement is used in these structures together with concrete adhesion and free of it (in plastic pipes). The use of tensioning reinforcement free of adhesion is the most effective one due to the fact, that rigidly and crack-resistance is determinant conditions for designing.
Space precast monolithic frame of the multi-storeyed seismic-resistant building with laped framework elements
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

I. The field of technology – Earthquake Engineering Industrialized Construction.

Purpose – Space precast monolithic frame for the construction of seismic-resistant multi-storied buildings with a large number of stories (from 2 to 20 and more), bearing structures of which are erected by using one type of the serial production of the framed structure and the panels of diaphragm rigidity.
Durability of Concrete Products
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

1. Provision of durability of concrete products and reinforced-concrete structures.

2. Field of application – construction. Obtained practical results were introduced for the construction of navigation facilities in the Far East: for erection of reinforced structures at different chemical factories of Armenia and also for design of refractory concrete mix of various purposes.
Engineering Aspects of Significant Increscent of Seismic Resistance Of Buildings
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

According to UNESCO data the earthquake occupies one of the first places among natural disasters. The earthquake is inevitable. However it is necessary to minimize fatal consequences and damage of buildings.

In contemporary seismological science it is still impossible precisely to forecast the time, place and intensity of the possible disaster therefore the first condition of the struggle against the earthquake is a qualitative performance of seismic resistant buildings.
Coloured Minerals
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

Armenian Republic is rich in resources of colored minerals in accordance of which natural pigments have been obtained.

Important colors are violet, dark red, lilac, brown, red, lemon, ochre, green and their tints.

They are characterized by cheapness, simplicity in comparison with artificial (synthetic) pigments, by wide range of colors of the painting compounds, high color fastness, compliance with known adhesions, fire-and explosion-proof; non-cancerageneous, non-toxically, non-radioactivity, low content of heavy metals, sanitary demands.
SPACE PRECAST –MONOLITHIC FRAME FROM CROSSED REINFORCED CONCRETE FRAMING OF THE IMPROVED STRUCTURES
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

A great experience has been gained for space precast monolithic frame consisting of crossed overlapping) framing during the construction of multi-storied and low-storied buildings in Armenia (more than 500 buildings) and in many countries of the CIS. Experimental tests have also been performed, including the following:
SEMI-AUTOMATIC HYDRAULIC JACK FOR THE TENSIONING OF THE REINFORCEMENT IN PRESTRESSED REINFORCED CONCRETE STRUCTURES
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

Hydraulic jack was developed by Armenian Earthquake Engineering Research Institute. It can be used both at the enterprises where prestressed reinforced concrete structures are fabricated and on the building sites.

In comparison with the existing hydraulic jacks the proposed ones have a number of advantages: reinforcement saving, considerable reduction of the tensioning time, the laborious work, increasing of labor productivity, low weight and dimensions, jack of extra devices and equipment for service, minimum area for the installation of the equipment.
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New effective “coupled” structural system of seismic protection of the building
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

A number of systems of active and semi-active seismic protection of buildings is known by the reduction of the level of seismic loads effected on them. They are divided into 4 groups, including also seismic insulation, adaptation, dissipation of energy and vibrations damping.

Quite a new variety of seismic protection of buildings as a “coupled system” was developed which is based on redistribution of forces between the building and rigid structure, assembled out of it.
DEVICE FOR MOULDING OF THE PRODUCTS MADE WITH FIBROUS CONCRETE (CERTIFICATE OF AUTHORSHIP No. 1279169)
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

The device is applied for the manufacturing of the products made of concrete mixtures, being reinforced by fiber glasses, basalt fiber, including retained (permanent) forms during the erection of cast-in-situ concrete and reinforced-concrete buildings and constructions.

The objective of the invention is to provide manufacturing of products anchorage projection (overhanging shoulders). The device is supplied by grooved roll with disk blades fixed on other side of the grooves rolls which is implemented with ring grooves, but the spiral conveyers of the smoothing device are of the variable height, moreover, the axes of each shortening screw conveyer, disk blade and ring groove are fixed at the same horizontal axis.

The device was patented in 14 countries, specifically, in the USA, Japan and others.
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FRAMED EN-BLOCK PRECAST AND MONOLITHIK CONSTRUCTIVE SYSTEM FOR THE ERECTION OF SEISMIC RESISTANT RESIDENTAL AND PUBLIC BUILDINGS OF VARIOUS NUMBERS OF STOREYS
Категория: Стр. тех. и арх. | Новость от: Admin | 27-12-2005

Framed en-block constructive system of seismic resistant of the building was developed, consisting of 2 varieties of wall.

Elements – multicolor large block and two-branch chord element. Due to the repetition and absolute minimum of standard sizes, their serial production is possible at one of the enterprises not operating now or at the Reinforced Concrete-Mixing Plat (RCMP).

The high seismic resistance of buildings is provided by spread monolithic vertical joints between the blocks and continuous recast- monolithic belt braces along their height.
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