<abstract><title style='display:none'>Abstract</title> For a long time in economic theory and practice, regulation is only linked to the need for state intervention in monopolistic markets, by developing uniform, simple regulatory rules to limit and control the monopoly power, the monopoly price, mergers and acquisitions between companies in the same industry and others. In recent years the prevailing opinion that government regulation is particularly necessary in oligopolistic markets where there are several leading, dominant companies that can influence the price, quantity and quality of the product offered. However, this regulatory policy should not apply to common rules and taking into account the specifics of the market/industry, market structure (concentration level) of the various market segments and the relevant economic activity. The aim of the study: 1) Evaluation of the efficiency of the construction market, 2) Demonstrate the need for government intervention, 3) Guidelines for the implementation of the regulatory function of the government.</abstract>

Efficiency of the construction market and need for government regulation

<abstract><title style='display:none'>Abstract</title> In recent years, climate conditions has caused extreme hydrological phenomena like flash floods that lead to significant material losses and impact on the environment in Dobrogea Region, Romania. In this context the needs for an integrated and sustainable approach to flash flood risk management even in small drainage basins are necessary, in order to reduce the the potential damages of flash floods in the future. In this study the hydraulic models Hec-Ras and HecGeo-Ras were used in order to simulate the behaviour of the environment at the pressure of the flashfloods in a small drainage basin. The results were validated using the measurements undertaken after the flash-flood event recorded in October, 13th, 2015 as well as the data provided by the Corbu gauging station along time.</abstract>

Flash floods simulation in a small drainage basin using HEC-RAS hydraulic model

<abstract><title style='display:none'>Abstract</title>In this article we present the way how to create a program in the Scilab-Xcos environment with which it can be dimensioned, mathematically modeled and simulated a water pumping installation.The mathematical equations implemented in the program with which the dimensioning and simulation are done are presented.Fuzzy logic was used to generate the pump characteristics.</abstract>

Sizing and Simulation for Optimization of a Water Pumping Installation Using Fuzzy Logic

<abstract><title style='display:none'>Abstract</title> Usually, the possibility of product differentiation of the construction company is defined as restricted, limited. Product differentiation as a key element of product policy aims to create a sustainable competitive advantage in the minds of consumers, using tangible and intangible characteristics and product properties compared to the next strongest competitor. The ability of any company to differentiate their own product makes it distinct from competitors and gives the opportunity to control the market and build competitive advantages. The aim of the study is to prove: 1) The need to differentiate the product of the construction company, 2) Guidelines for differentiation of the construction product taking into accounts the specifics of the construction market, product and process.</abstract>

Product differentiation policy of the construction firm

<abstract><title style='display:none'>Abstract</title> Roofs with one or more slopes, represent an important part of a construction, having a double role: a role of resistance together with the entire constructive system and a protective role both for the other components of the constructive system and for the optimal unfolding of the various functions. The durability and the fulfillment of the mechanical requirements depend equally on the material used, design quality and execution quality. Industrialized roof structures can be a solution, under the current conditions, to meet these requirements. This article compares the traditional roof structures and the industrialized one.</abstract>

Roof structures. Comparisons between traditional roof structures and industrialized ones

<abstract>
<title style='display:none'>Abstract</title>
In this paper the authors show the investigations importance on the constituent materials of the mosques, to understand their behaviour in the environment actions, but also for the using off efficient intervention measures. In this paper a comparative analysis is made between three mosques on the territory of Dobrogea, which were built in different periods, and located in areas with different location characteristics.
</abstract>

Techniques and Materials Used in the Construction of the Mosques in the Dobrogea Area

<abstract>
<title style='display:none'>Abstract</title>
The real estate funds in Romania in the category of condominiums presents an important subject to be analyzed after several considerastions. Securing apartment buildings raises issues of high complexity. The present study focuses on the presentation of the criteria of analisys, the earthquake as a degradation factor of these buildings, the evolution of norms regarding seismic actions concluding with an important study case building – the Simu apartments block in Bucharest. The authors also synthesized information from several publications over time in Romania.
</abstract>

Risk and Vulnerability in the Analysis of Apartment Buildings

<abstract>
<title style='display:none'>Abstract</title>
The assessment of water quality from coastal lakes for irrigation purposes has emerged from the practical necessity of the land improvements companies, in order to determine the irrigation class of water from coastal lakes that could represent the water source for irrigation facilities in the coastal area. These assessments are the support for the hydro-saline dynamics of the soil, so that the intervention in the environment is harmoniously assimilated to it.
</abstract>

Assessment of Water Quality from Coastal Lakes for Use in Irrigation

<abstract>
<title style='display:none'>Abstract</title>
In this paper we propose to present the analysis of energy consumption for heating for a building in the design phase depending on the conditions of location in the field. We analyzed 3 variants of the location of the building. Establishing the location of the location for a building according to the estimation of energy consumption in the project phase is in accordance with the requirements established in Directive 2010/31 / EU. Design decisions can also have an impact on land use, resource use and the production of waste and emissions throughout the life cycle of the building.
</abstract>

Considerations Regarding the Establishment of the Location for a Residential Building in the Project phase Based on Energy Consumption

<abstract>
<title style='display:none'>Abstract</title>
This study adds to what most studies lack in understanding the process and context of urban regeneration. Only by understanding the local, national, and global contexts and processes of urban regeneration can inferences, lessons, and best practices be made. The objective of this study is to review the literature on urban regeneration and evaluate contemporary alterations and their implications for future city renewal. The rehabilitation of Ovidiu’s waterfront is a unique issue, considering the city’s location, its openness to Lake Siutghiol, which is separated from the Black Sea by only a 400m wide cordon, and the presence of the Roman camp and the aqueduct that previously supplied the Roman castle of Tomis. Lake Siutghiol has considerable growth potential due to the direct connection between Ovidiu and Mamaia, a popular tourist destination recently attracting many investors.
</abstract>

A Study on the Urban Redevelopment of Ovidiu’s Shoreline

<abstract>
<title style='display:none'>Abstract</title>
The new EU industrial strategy proposes new measures to strengthen the sustainability of the European single market (especially in times of crisis) and to accelerate the green and digital transformation. It focuses on 14 industrial ecosystems (one of which is construction), which face the most important challenges of achieving the climate, sustainability and digital transformation goals that are key to market competitiveness. The purpose of the study is: 1) Analysis of the problems related to the need to accelerate the green and digital transformation of the construction market, 2) Development of models that support and ensure the double transition in the construction market.
</abstract>

The Green and Digital Transformation - the New Challenges of the Construction Market

<abstract>
<title style='display:none'>Abstract</title>
The historic center of Brăila begins with “Trajan Square”, a special cultural area with monuments that distinguish it among national cultural values: the Church of the “Holy Archangels Michael and Gabriel” and the “Maria Filotti” Theater. These heritage buildings in cities preserve the memory of the original structure.
</abstract>

Brăila’s Historical Monuments

<abstract><title style='display:none'>Abstract</title> The main goal of this paper is to establish the thermal comfort or thermal discomfort conditions for the coastal zone of Black Sea, in Dobrogea region (Romania). In the last century there have been many efforts to assess the degree of thermal discomfort and heat stress for different types of climates and taking into account as many climate variables. The thermal discomfort is difficult to be quantified because it is necessary to consider a range of environmental and human factors to decide what makes a person to feel thermal comfortable. This article is divided into three sections. First section presents the indices used in determining thermal discomfort, in the second section are presented: the main climatic characteristics of the Dobrogea region and the data and methods used in determining thermal discomfort indices. Section three is dedicated to results and discussion.</abstract>

Application of thermal discomfort indices for the coastal zone of Black Sea, in Dobrogea Region

<abstract><title style='display:none'>Abstract</title>Within this paper, a methodology for assessing the flood risk was developed by extracting the essential factors that favor the generation of flood risk. These factors, that had a sufficient number of data for a proper comparative analysis, are: potentially affected population based on population density, total agricultural area, total built-up area and the historical maximum amount of precipitation recorded in 24 hours. The flood risk assessment is presented in the form of indices calculation for all these factors and maps generated which representing the results of the calculation of the above-mentioned factors and the results of the flood risk index calculation.Urban floods have particularities that must be presented in detail to understand the flood phenomenon, which is why this paper takes into consideration these areas. In order to determine the probability of urban floods, all disturbing factors that may affect the urban area must be taken into account.The method presented in this paper can be used in sectoral planning activities and integrated planning studies, and for damage assessment.</abstract>

Flood Risk Assessment Based on Flood Hazard and Vulnerability Indexes

<abstract><title style='display:none'>Abstract</title>In order for a project to be built with respect to quality, budget compliance and execution time - all required conditions, a professional management of site-level operations is required. The technical complexity, the importance of performing the work on the set deadline, the resource constraints and the substantial costs require the planning, programming and rigorous control of all the works.</abstract>

Business Management Strategies for Business Development. Organization of the Territory and Planning of Construction Works

<abstract><title style='display:none'>Abstract</title>This paper includes an analysis of the biological treatment process existing within the water supply and sewerage of Iași City. The main objective of biological treatment is the removal of solid organic substances from wastewater, the stabilization of sludge, the reduction of nutrients loads etc. The Iași City Wastewater Treatment Plant was developed in several stages since year 1968. Nowadays, the facility operates at a design flow rate of 4 m3/s during dry weather and 8 m3/s during heavy rainfalls. This study is focused on the following aspects: wastewater treatment plant’s diagram, the wastewater parameters inside the treatment plant, the biological treatment process analysis and a few conclusions.</abstract>

Studies Related to the Biological Treatment of Wastewater within the Wastewater Treatment Plant of Iași City

<abstract><title style='display:none'>Abstract</title>The coastline of Zemmouri Bay on the northeast coast of Algeria with about 50 km of shoreline has been eroding since 1970. Changes of the sandy shoreline are continuous and occur at diverse spatial and temporal scales. This erosion is a major crisis and it potentially impacts the coastal population and natural environment. In order to understand and predict these morphological changes, an accurate description of sediment transport by waves and currents and shoreline change is important. This paper presents a comprehensive study of wave refraction, current-driven sediment transport and shoreline change. Results show that the study area exhibits a great variety of shoreline evolution trends, with erosion prevailing in the eastern and central sectors and stability or even accretion in the Western area.</abstract>

Coastal Processes and Longshore Sediment Transport along Zemmouri Bay, Central East Coast of Algeria

<abstract><title style='display:none'>Abstract</title>The term of shear lag is related to the discrepancies between the approximate theory of the bending of beams and their real behaviour. It refers to the increases of the bending stresses near the flange-to-web junctions and the corresponding decreases in the flange stresses away from these junctions. In the case of wide flanges of plated structures, shear lag caused by shear strains, which are neglected in the conventional theory, may be taken into account by a reduced flange width concentrated along the webs of the steel girders. In EN 1993-1-5, the concept of taking shear lag into account is based on effective width of the flange which is defined in order to have the same total normal force in the gross flange subjected to the real transverse stress distribution as the effective flange subjected to a uniform stress equal to the maximum stress of the real transverse distribution. Some aspects concerning the shear lag phenomenon and a working example for a box girder of a heavy crane runway to illustrate the determination of the shear lag effect are also presented.</abstract>

Effects of Shear Lag in Steel Box Girders of a Crane Runway

Open Access License

Ovidius University Annals of Constanta - Series Civil Engineering

 “Ovidius” University Annals of Constanta - Series CIVIL ENGINEERING (OUACSCE) is an international, multidisciplinary forum for the publication of original contributions and the...

 “Ovidius” University Annals of Constanta - Series CIVIL ENGINEERING (OUACSCE) is an international, multidisciplinary forum for the...