scholarly journals Feasibility of using the light steel frame system in civil construction works in the city of Manaus-AM

2018 ◽  
Vol 4 (16) ◽  
Author(s):  
Arliane dos Santos Farias ◽  
Charles Ribeiro de Brito ◽  
David Barbosa de Alencar ◽  
Manoel Henrique Reis Nascimento ◽  
Jorge Almeida Brito Junior ◽  
...  
Keyword(s):  
Steel Frame ◽  
Frame System ◽  
The City ◽  
Construction Works

scholarly journals Deriving Aerosol Absorption Properties from Solar Ultraviolet Radiation Spectral Measurements at Thessaloniki, Greece

2019 ◽  
Vol 11 (18) ◽  
pp. 2179 ◽  
Author(s):  
Ilias Fountoulakis ◽  
Athanasios Natsis ◽  
Nikolaos Siomos ◽  
Theano Drosoglou ◽  
Alkiviadis F. Bais
Keyword(s):  
Solar Spectrum ◽  
Single Scattering ◽  
Spectral Measurements ◽  
City Center ◽  
Solar Ultraviolet Radiation ◽  
Aerosol Absorption ◽  
Absorbing Aerosols ◽  
The City ◽  
Double Monochromator ◽  
Construction Works

The gap in knowledge regarding the radiative effects of aerosols in the UV region of the solar spectrum is large, mainly due to the lack of systematic measurements of the aerosol single scattering albedo (SSA) and absorption optical depth (AAOD). In the present study, spectral UV measurements performed in Thessaloniki, Greece by a double monochromator Brewer spectrophotometer in the period 1998–2017 are used for the calculation of the aforementioned optical properties. The main uncertainty factors have been described and there is an effort to quantify the overall uncertainties in SSA and AAOD. Analysis of the results suggests that the absorption by aerosols is much stronger in the UV relative to the visible. SSA follows a clear annual pattern ranging from ~0.7 in winter to ~0.85 in summer at wavelengths 320–360 nm, while AAOD peaks in summer and winter. The average AAOD for 2009–2011 is ~50% above the 2003–2006 average, possibly due to increased emissions of absorbing aerosols related to the economic crisis and the metro-railway construction works in the city center.

Lattice Light Steel Frame System and Application

2011 ◽  
Vol 105-107 ◽  
pp. 1110-1113
Author(s):  
Bo Ding ◽  
Huan Qing Jiang ◽  
Hong Xia Wan ◽  
Feng Zhang
Keyword(s):  
High Speed ◽  
Design Method ◽  
Calculation Model ◽  
Steel Frame ◽  
Calculation Results ◽  
Frame System ◽  
Practical Engineering ◽  
Steel Consumption ◽  
New Type ◽  
New System

Lattice light steel frame is a new type of structural system, combining general steel framework which is composed of lattice column and lattice beam with lattice light steel keel of the partitions and floors, the system takes full advantages of both structural systems, with high speed construction, less steel consumption, good earthquake-resistance etc., and possesses good prospects. The paper describes the system construction approach and the characteristics of lattice light steel frame system, and provides a project example of a villa. The design method and calculation model of the project are presented. Calculation results meet the specifications’ requirements, proving the new system can be applied to practical engineering. The paper gives guidance for application and research of this new system.

A New Kind of Modular Assembly Steel Structure System

2014 ◽  
Vol 578-579 ◽  
pp. 741-744
Author(s):  
Zai Hua Zhang ◽  
Xing Ping Shu ◽  
Ran He
Keyword(s):  
Steel Structure ◽  
Steel Frame ◽  
Modular Assembly ◽  
Structure System ◽  
Assembly Structure ◽  
Frame System ◽  
New Type ◽  
Structure Engineering

As a new type of structure system suitable for the realization of building industrialization, assembly structure system is a trend in the development of steel structure engineering. In this paper, a kind of assembly truss beam steel frame system is proposed. The composition of system, the technology characteristic of components and connections are analyzed in detail. Meanwhile some problems need to be solved are also put forward.

scholarly journals In site geotechnical investigations in the city of Larissa and influence on the construction environment

2021 ◽  
Vol 899 (1) ◽  
pp. 012034
Author(s):  
F Kokotini ◽  
N Alamanis ◽  
G Papageorgiou ◽  
E Paschalis ◽  
T Chrysanidis
Keyword(s):  
Mechanical Properties ◽  
Physical And Mechanical Properties ◽  
Field Testing ◽  
Geotechnical Data ◽  
Geotechnical Investigations ◽  
A Site ◽  
The City ◽  
Construction Works ◽  
Properties Of Soil

Abstract Field testing is often a very reliable way to determine the mechanical properties of soil materials and in some cases the most appropriate and unique way to obtain accurate measurements. Geotechnical engineers and engineering geologists perform geotechnical investigations to obtain information on the physical and mechanical properties of soil and rock underlying (and sometimes adjacent to) a site to design earthworks and foundations for proposed structures. The object of the present work is the recording of the geotechnical data of the center and districts of the city of Larissa, the knowledge of which is necessary for the construction and erection of construction works, as well as the characteristics and points that need special attention in each area. Finally important conclusions refer to the construction culture, that project authorities and contractors should draw on, accordingly.

scholarly journals The Bed Flow Mathematical Simulation for Forecast of Impact of Construction on Floodplain for Major rivers Hydrological Regime (the Ob River as a study case)

2017 ◽  
Author(s):  
Keyword(s):  
Hydrological Regime ◽  
Water Levels ◽  
Ob River ◽  
Bed Erosion ◽  
River Bed ◽  
Study Case ◽  
Scientific Practical ◽  
Work Impact ◽  
The City ◽  
Construction Works

Issues of forecasting of construction works on floodplains impact on hydrological and bed processes at adjacent ranges of major rivers have been considered. Mathematical models of flows and bed processes at the river ranges with complicated morphometry of the bed and floodplain have proposed. Their application enables to solve a significant scientific/practical problem of assessment of the construction works impact on flooding floodplain territories and the Ob River bed erosion in the vicinity of the city of Barnaul. Calculations for the Ob River range under consideration have been done according a computer hydrodynamic model produced with the use of hydrological data, outcomes of bed surveying and geodesic investigations. The planning construction work impact on the water levels, flow velocities and the river bed erosion in case of different Ob River flows has been shown. The bed and hydrological processes impact on the site of the designed facility has been assessed.

New Structural Solution of Light-Weight Steel Frame System, Based on The Sigma Profiles

1999 ◽  
pp. 343-350
Author(s):  
Zdzisław Kurzawa ◽  
Katarzyna Rzeszut ◽  
Andrzej Boruszak ◽  
Wojciech Murkowski
Keyword(s):  
Steel Frame ◽  
Light Weight ◽  
Frame System ◽  
Structural Solution

ԵՐԵՎԱՆՑԻ ԽՈՋԱ ԳՐԻԳՈՐ ՄՈԾԱԿԵՆՑԸ ԵՎ ՄԵՍՐՈՊ ՄԱՇՏՈՑԻ ԱՆՎԱՆ ՄԱՏԵՆԱԴԱՐԱՆԻ N 6231 ՀԱՅՍՄԱՎՈՒՐՔԸ

2021 ◽  
pp. 67-98
Author(s):  
Khachik Harutyunyan
Keyword(s):  
Financial Support ◽  
Relevant Information ◽  
Late Medieval ◽  
History Of ◽  
The City ◽  
Written Sources ◽  
Construction Works

GRIGOR KHOJA MOTSAKENTC OF YEREVAN AND NO 6231 HAYSMAVURK‘ OF MATENADARAN OF MESROP MASHTOTS The study is dedicated to the activities of Grigor Khoja, a member of one of the influential families of the late medieval Yerevan known as the Motsakentc. In the context of this research, it is important to highlight the valuable evidences of various written sources of the XVII-XVIII centuries, among which the main colophon of the manuscript MM 6231 copied in 1652, stands out with its relevant information about Grigor. In the same colophon, the scribe lists the construction works funded by Grigor Khoja, who has sponsored also the writing of the manuscript and made various donations to the Kathoghike St. Astvatsatsin Church in Yerevan. According to this source, the chapel of the same church and a bridge in the nearby village of Parakar were built with the financial support of Grigor Motsakentc. However, as it seems, the construction of the bridges was not limited to this. According to historian Arakel Davrijetsi, the Ashtarak bridge on the Kasakh River was built under the sponsorship of the same Grigor Khoja. The second part of the article is dedicated to the history of the manuscript MM 6231, from its copying to later reaching the Matenadaran in Yerevan. According to several further colophons written in the manuscript, the book has been captured and taken to Karin, but later was liberated, returned to Yerevan, and at the beginning of the XX century entered the Matenadaran with the manuscripts collected from various churches in the city.

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