La protection des créances des sous-traitants dans le domaine de la construction

La sous-traitance est une pratique constante dans le domaine de la construction, en raison de ses atouts économiques et techniques. Par cette pratique, les sous-traitants effectuent des travaux sans être, sur le plan juridique, liés contractuellement au maître de l’ouvrage. Comment assurer le paiement de leurs créances, eu égard au risque de défaillance de l'entrepreneur. Le législateur a prévu un régime légal de protection et la pratique a élaboré des mécanismes. Le régime légal, bien qu’il assure efficacement la protection des créances des sous-traitants, comporte certaines faiblesses dans son application qui peuvent causer des inconvénients aux sous-traitants et au propriétaire. L’assurance de titres et des retenues de fonds par l’institution financière ou le notaire peuvent pallier ces difficultés pour le propriétaire. Les mécanismes de protection élaborés par la pratique, tels que le cautionnement et les garanties monétaires, accroissent la protection des sous-traitants lorsqu’ils sont utilisés parallèlement au régime légal et profitent au propriétaire.

Crime organisé et construction : un duo indissociable?

La collusion est une pratique anticoncurrentielle qui a pour but la coopération de personnes morales afin d’atteindre un but commun tel que le profit. Cette méthode se retrouve dans le milieu de la construction notamment par la rotation de contrat, par la fixation de prix ou le débalancement de bordereaux. Bien que la collusion dans la construction soit souvent associée au crime organisé, cette étude propose l’hypothèse d’un contrôle du marché par le crime organisant et non le crime organisé. Ainsi, l’industrie de la construction serait influencée par une organisation en mouvance et en développement constant pouvant s’organiser tout en organisant d’autres noyaux. En analysant le marché de l’industrie de la construction, cette étude a pu relever qu’il était possible à l’aide d’outils quantitatifs tels que l’analyse de classification d’identifier des irrégularités au sein du marché, au fil des années. Des entrevues passées auprès d’acteurs du domaine de la construction sont venues confirmer l’hypothèse d’un contrôle du marché par le crime organisant et non le crime organisé. L’analyse qualitative se penchait ainsi sur les motivations des acteurs à entreprendre des pratiques anticoncurrentielles et sur la compréhension de l’émergence de la collusion dans la construction. La discussion identifie les opportunités criminelles, de même que les problématiques survenant dans le milieu de la construction et pouvant influencer l’émergence de la collusion. Ces problématiques concernent les contributions aux partis politiques, le truquage des devis et bordereaux par les firmes de consultants, l’impunité des autorités, l’historicité des entrepreneurs, l’idéologie de marché et les problématiques liées au cautionnement. Enfin, des solutions adaptées à la réalité de l’industrie de la construction en tenant compte des facteurs de risque ont été identifiées.

A critical study of major construction projects in kerala vis-a-vis effectiveness in project implementation

Chapter 1 presents a brief note on the state at which the construction industry stands at present, bringing into focus the significance of the critical study. Relevance of the study, area of investigation and objectives of the study are outlined in this chapter. The 2nd chapter presents a review of the literature on the relevant areas. In the third chapter an analysis on time and cost overrun in construction highlighting the major factors responsible for it has been done. A couple of case studies to estimate loss to the nation on account of delay in construction have been presented in the chapter. The need for an appropriate estimate and a competent contractor has been emphasised for improving effectiveness in the project implementation. Certain useful equations and thoughts have been formulated on this area in this chapter that can be followed in State PWD and other Govt. organisations. Case studies on project implementation of major projects undertaken by Government sponsored/supported organizations in Kerala have been dealt with in Chapter 4. A detailed description of the project of Kerala Legislature Complex with a critical analysis has been given in this chapter. A detailed account of the investigations carried out on the construction of International Stadium, a sports project of Greater Cochin Development Authority is included here. The project details of Cochin International Airport at Nedumbassery, its promoters and contractors are also discussed in Chapter 4. Various aspects of implementation which led the above projects successful have been discussed in chapter 5. The data collected were analysed through discussion and perceptions to arrive at certain conclusions. The emergence of front-loaded contract and its impact on economics of the project execution are dealt with in this chapter. Analysis of delays in respect of the various project narrated in chapter 3 has been done here. The root causes of the project time and overrun and its remedial measures are also enlisted in this chapter. Study of cost and time overrun of any construction project IS a part of construction management. Under the present environment of heavy investment on construction activities in India, the consequences of mismanagement many a time lead to excessive expenditure which are not be avoidable. Cost consciousness, therefore has to be keener than ever before. Optimization in investment can be achieved by improved dynamism in construction management. The successful completion of coristruction projects within the specified programme, optimizing three major attributes of the process - quality, schedule and costs - has become the most valuable and challenging task for the engineer - managers to perform. So, the various aspects of construction management such as cost control, schedule control, quality assurance, management techniques etc. have also been discussed in this fifth chapter. Chapter 6 summarises the conclusions drawn from the above criticalr1 of rhajor construction projects in Kerala.

Construction waste management in India

The management of construction waste is important today. The scarcity in the availability of aggregate for the production of concrete is one of the important problems facing by the construction industry. Appropriate use of the construction waste is a solution to the fast degradation of virgin raw materials in the construction industry. This paper enlightens the importance of reduce, reuse and recycle (3R) concept for managing the construction waste in India

Exposición laboral de agentes químicos carcinógenos presentes en las empresas afiliadas a una ARL en Colombia 2011-2014

Objetivo: Caracterizar los sectores económicos con mayor susceptibilidad de exposición a agentes químicos carcinógenos, categorizados en el grupo 1 por la Agencia Internacional para la Investigación del Cáncer IARC (formaldehído, polvo de madera, benceno y sílice cristalina) afiliadas a una Administradora de riesgos Laborales (ARL) en Colombia entre el periodo 2011 a 2014. Método: Estudio de tipo descriptivo retrospectivo con datos históricos obtenidos desde 2011 hasta 2014. De acuerdo con el número de mediciones que se realizó en cada área y cargo de las empresas objeto de estudio, se utilizó la medición basal para determinar el estado inicial y evaluar de manera concurrente la exposición de estos cuatro agentes químicos. Resultados: En total se obtuvieron 201 mediciones de higiene industrial para cuatro agentes químicos carcinógenos. Los resultados mostraron que índice de riesgo de la exposición a agentes químicos carcinógenos en diferentes empresas, se encuentra en algunos casos en niveles altos o críticos dado que superar los valores máximos permisibles definidos por la Conferencia Americana de Higienistas Industriales de Gobierno (ACGIH). Conclusión: Los trabajadores de diferentes empresas en Colombia están expuestas a diferentes tipos de concentraciones por agentes químicos cancerígenos. Las concentraciones ambientales obtenidas en el ambiente laboral en algunos casos excedieron las concentraciones máximas permitidas, por lo que se recomienda que las empresas e instituciones del país fortalezcan las medidas de prevención, vigilancia y control para minimizar los riegos a que pueden estar expuestos sus trabajadores.

Percepción del riesgo biológico en el personal asistencial en un hospital de alta complejidad de la ciudad de Bogotá.

OBJETIVOS: Identificar la percepción del riesgo biológico de los trabajadores asistenciales del Hospital Central de la Policía Nacional en la ciudad de Bogotá. METODOS: se realizó un estudio analítico de corte transversal para describir la percepción acerca del riesgo biológico en 159 trabajadores asistenciales de un hospital de alta complejidad en la ciudad de Bogotá (Colombia), la información se recolectó por medio de la utilización de la encuesta validada nota técnica 578 (Portell M, Solé M, 2001). Se realizó la caracterización de la población por variables de sexo, edad, tiempo de experiencia y servicio al cual pertenece y se promediaron las respuestas obtenidas para cada ítem encuestado, obteniendo una clasificación para cada dimensión de percepción de riesgo baja (1 a 3), media (4 a 5) o alta (6 a 7). Resultados: De los 159 trabajadores asistenciales encuestados el 80.4% eran de género femenino, el 22.2% pertenecían al servicio de urgencias, el 16,5% al servicio de medicina interna y el 9.5% al servicio de pediatría, de los encuestados el 62.9% fueron auxiliares de enfermería, el 21,4% enfermeras jefes y el 6.9% médicos. Se obtuvo una percepción de riesgo alta (media aritmética mayor de 5) para todas las variables incluidas en la encuesta, demostrando conocimiento de todo el personal acerca de la alta exposición a accidentes de tipo biológico. No se encontró asociación entre la labor desempeñada y la percepción del riesgo biológico, sin embargo, se encontró una asociación entre el tiempo de experiencia del trabajador y una disminución en la magnitud del riesgo percibido (Chi cuadrado de asociación, p=0.042). Conclusiones: Los trabajadores asistenciales identifican la magnitud del riesgo biológico al que se encuentran expuestos en sus labores del día a día, sin embargo, es necesaria una mayor participación por parte del personal directivo y de los responsables de la prevención en temas de reacción ante accidentes y en la valoración del riesgo, especialmente en personas que llevan mucho tiempo desempeñando la labor.

Perfil epidemiológico de la prevalencia de hipoacusia en un grupo de empleados que trabaja en el ambiente urbano, 2015

El propósito de este estudio es determinar la relación entre la exposición ocupacional y los niveles de audición en trabajadores urbanos en espacio abierto (aseo urbano en general). Se realizó un estudio de corte transversal con 491 personas que incluyen hombres y mujeres, cuyo ambiente laboral es el espacio abierto de la ciudad. Los datos se obtuvieron durante los exámenes médicos periódicos realizados en el año 2014 a los empleados de una empresa cuya actividad económica es el aseo urbano, que incluye recolección de basuras, cuidado forestal y de prados de uso común, y limpieza del borde de los andenes. Se realizó estadística descriptiva para las características demográficas y razón de disparidad u Odds Ratio (OR) para buscar la relación de antecedentes y hábitos personales con el riesgo de desarrollar pérdida auditiva. De las 491 personas expuestas a niveles altos de ruido ocupacional, 62% presentó pérdida auditiva, de los cuales la mayoría se desempeña como guadañadores y cortadores de césped, y son personas que llevan trabajando entre 1-5 años en la empresa. Se encontró un aumento estadísticamente significativo entre la baja escolaridad y el riesgo de sufrir hipoacusia (p=0.0001) y un efecto protector del uso de motocicleta y audífonos. La enfermedad vascular periférica, la práctica de tejo y la diabetes mostraron una fuerte tendencia a aumentar el riesgo. La pérdida auditiva encontrada en este grupo no se puede relacionar directamente con la exposición ocupacional a ruido, a pesar de ser trabajos que se llevan a cabo en el espacio urbano. Sin embargo, la baja escolaridad favorece la lesión auditiva y puede verse acelerada por enfermedades de alta prevalencia como diabetes y practicas recreacionales locales.

Living up to the value agenda: the empirical realities of through-life value creation in construction

Current research agendas are increasingly encouraging the construction industry to operate on the basis of 'added value'. Such debates echo the established concept of 'high value manufacturing' and associated trends towards servitization. Within construction, the so-called 'value agenda' draws heavily from the notion of integrated solutions. This is held to be especially appropriate in the context of PFI projects. Also relevant is the concept of service-led projects whereby the project rationale is driven by the client's objectives for delivering an enhanced service to its own customers. Such ideas are contextualized by a consideration of broader trends of privatization and outsourcing within and across the construction industry's client base. The current emphasis on integrated solutions reflects long-term trends within privatized client organizations towards the outsourcing of asset management capabilities. However, such trends are by no means uniform or consistent. An in-depth case study of three operating divisions within a major construction company illustrates that firms are unlikely to reorientate their business in response to the 'value agenda'. In the case of PFI, the tendency has been to establish specialist units for the purposes of winning work. Meanwhile, institutionally embedded operating routines within the rest of the business remain broadly unaffected.

Modelling the construction projects using plans of work

An overview of organization in the construction industry is identified from plans of work published in the UK. This provides a basis for identifying the essential steps through which any construction project must pass. It is shown that all construction projects pass through a set of stages of work, consisting of inception, feasibility, scheme design, detail design, contract formation, construction and commissioning. Although there may be changes to the sequence and importance of these stages, their identification helps in making judgements about organizational structure on construction projects.

Construction subcontracts: for what we are about to receive

This paper is from a study on specialist and trade contracting in the construction industry. The research was commissioned by CIRIA and undertaken by the University of Reading in conjunction with Sir Alexander Gibb & Partners Ltd. The purpose of the work was to provide guidance for effective and equitable practice in the management of projects where much of the work is executed, and possibly designed, by specialist and trade contractors (STCs). As part of this study, a preliminary investigation into the nature and origins of specialist contracting was undertaken, in conjunction with a survey of the problems confronting STCs. This paper presents that phase of the project.

Construction management contracts: law and practice

The context of construction management (CM) reveals that this method of procurement is as much a management philosophy as a contract structure. It is important to consider legal and contractual issues in this context. The interplay between management and law is complex and often misunderstood. Before considering specific issues, the use of contractual remedies in business agreements is discussed. In addition, the extent to which standardising a form of contract detracts or contributes to the success of projects is also considered. The dearth of judicial decisions, and the lack of a standard form, render it difficult to be specific about legal issues. Therefore, the main discussion of legal issues is centred around a recently completed research project which involved eliciting the views of a cross-section of experienced construction management clients, consultants and trade contractors. These interviews are used as the basis for highlighting some of the most important legal points to consider when setting up CM projects. The interviews revealed that the advantage of CM is the proximity of the client to the trade contractors and the disadvantage is that it depends on a high degree of professionalism and experience; qualities which are unfortunately difficult to find in the UK construction industry.

Construction contracts: law and management (3rd edition)

This book is aimed primarily at students for whom the study of building or civil engineering contracts forms part of a construction-based course. We have had in mind the syllabus requirements for first degrees in Building, Civil Engineering, Architecture, Quantity Surveying and Building Surveying, as well as those of postgraduate courses in Construction Management and Project Management. We have also assumed that such students will already have been introduced to the general principles of English law, especially those relating to contract and tort. As a result, while aspects of those subjects that are of particular relevance to construction are dealt with here, the reader must look elsewhere for the general legal background. In producing this third edition, we have again been greatly assisted by the many helpful comments made by reviewers and users of its predecessor. Nonetheless, our basic aim is identical to that which underpinned the first edition: to provide an explanation of the fundamental principles of construction contract law, rather than a clause-by-clause analysis of any particular standard-form contract. As a result, while we draw most frequently upon JCT 98 for our illustrations of particular points, this merely reflects the pre-eminent position occupied by that particular form of contract in the UK construction industry. We conclude by repeating our previous warning as to the dangers inherent in a little learning. Neither this book, nor the courses for which it is intended, seek to produce construction lawyers. The objective is rather to enable those who are not lawyers to resolve simple construction disputes before they become litigious, and to recognize when matters require professional legal advice. It should be the aim of every construction student to understand the legal framework sufficiently that they can instruct and brief specialist lawyers, and this book is designed to help them towards that understanding.

Roles in construction projects: analysis and terminology

Standard form contracts are typically developed through a negotiated consensus, unless they are proffered by one specific interest group. Previously published plans of work and other descriptions of the processes in construction projects tend to focus on operational issues, or they tend to be prepared from the point of view of one or other of the dominant interest groups. Legal practice in the UK permits those who draft contracts to define their terms as they choose. There are no definitive rulings from the courts that give an indication as to the detailed responsibilities of project participants. The science of terminology offers useful guidance for discovering and describing terms and their meanings in their practical context, but has never been used for defining terms for responsibilities of participants in the construction project management process. Organizational analysis enables the management task to be deconstructed into its elemental parts in order that effective organizational structures can be developed. Organizational mapping offers a useful technique for reducing text-based descriptions of project management roles and responsibilities to a comparable basis. Research was carried out by means of a desk study, detailed analysis of nine plans of work and focus groups representing all aspects of the construction industry. No published plan of work offers definitive guidance. There is an enormous amount of variety in the way that terms are used for identifying responsibilities of project participants. A catalogue of concepts and terms (a “Terminology”) has been compiled and indexed to enable those who draft contracts to choose the most appropriate titles for project participants. The purpose of this terminology is to enable the selection and justification of appropriate terms in order to help define roles. The terminology brings an unprecedented clarity to the description of roles and responsibilities in construction projects and, as such, will be helpful for anyone seeking to assemble a team and specify roles for project participants.

Contemporary organizational theory in the management of construction projects

The level of insolvencies in the construction industry is high, when compared to other industry sectors. Given the management expertise and experience that is available to the construction industry, it seems strange that, according to the literature, the major causes of failure are lack of financial control and poor management. This indicates that with a good cash flow management, companies could be kept operating and financially healthy. It is possible to prevent failure. Although there are financial models that can be used to predict failure, they are based on company accounts, which have been shown to be an unreliable source of data. There are models available for cash flow management and forecasting and these could be used as a starting point for managers in rethinking their cash flow management practices. The research reported here has reached the stage of formulating researchable questions for an in-depth study including issues such as how contractors manage their cash flow, how payment practices can be managed without damaging others in the supply chain and the relationships between companies" financial structures and the payment regimes to which they are subjected.

Cash flow management in construction firms

The level of insolvencies in the construction industry is high, when compared to other industry sectors. Given the management expertise and experience that is available to the construction industry, it seems strange that, according to the literature, the major causes of failure are lack of financial control and poor management. This indicates that with a good cash flow management, companies could be kept operating and financially healthy. It is possible to prevent failure. Although there are financial models that can be used to predict failure, they are based on company accounts, which have been shown to be an unreliable source of data. There are models available for cash flow management and forecasting and these could be used as a starting point for managers in rethinking their cash flow management practices. The research reported here has reached the stage of formulating researchable questions for an in-depth study including issues such as how contractors manage their cash flow, how payment practices can be managed without damaging others in the supply chain and the relationships between companies’ financial structures and the payment regimes to which they are subjected.