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Construction in Ethiopia Alem Tesfahunegn Civil engineer (MSc) Building Design Enterprise – Ethiopia Summary struction process, including a client who intends to hire a Management Company. As the intensive construction in Ethiopia today becomes My main objective in this paper is to highlight a gen- more complex, the demand for housing and project man- eral understanding of project problems with real design, agement services is increasing. During the housing con- tendering, and management and present my own propos- struction the application of project management the pro- als and solutions to the problems. gress against time, cost against tender or budget, quality against specifications is can be confusing for all parties Basic Information about Ethiopia involved in the construction process. Therefor, the main task of this paper is to indicate the problem solutions. Location This menace, first of all any project before its design Ethiopia is located in the Horn of Africa and is the largest starting should have a briefing stage, sketch design stage, country in the continent. It has an area of 1,112,000 km² scheme design stage and detail design. Also design should and it has an elevated central plateau varying between include the climatic design of building materials, earth- 2,000 and 3,000 meters above sea level quake safety and energy conservation for low–cost hous- ing as well as for complex buildings. Apart that, to have quality and effective construction work there should be quality control. Introduction Even though Ethiopia has it’s own several ancient civili- sations, from the 60s there is a great influence by the in- ternational style of architectural design. Because of these, every building is reduced to plain vertical and horizontal lines of concrete blocks, which being unimpressive and ugly, are a menace to the society and a cause of environ- mental degradation. They are also a cause of a complete break to traditional values and cultural patterns. Apart from that, because of the international style influence, the country can not relate itself with tradition while, we have not yet been to able satisfy the basic housing needs of our people even with the modern solutions. But I think, it is very important to learn from mistakes done on built hous- ing blocks that were implemented with out thorough study of function. And it is important to encourage con- Figure 1 Map of Ethiopia struction of buildings with local materials and of course with consideration of functional requirements and proper Population management. The population of Ethiopia is about 58 million. According to the 1997-population census. The population living ur- Aim of the paper ban areas accounted for about 15% and 50% of the popu- lation are under 22 years of age. The average number of As the intensive construction process of today becomes inhabitants per km² is estimated to be 26 people. more and complex, in Ethiopia the demand for profes- sional project management and real design services are Structure of the construction industry increasing. People within the construction do not agree about what the concept project management implies and The construction industry consists of various sectors. this can be confusing for all parts involved in the con- These are the building and residential development sector, civil engineering sector, professional services sector and 1 Alem Tesfahunegn self-building sector. The construction industry consists of tect submits scheme design for approval to the local deferent types and size of firms. These operate in the def- authority. erent sub-markets characterising the construction indus- • Detail Design Stage try. Construction firms must be registered and licensed in Architects proceed to detail design the elements and com- order to undertake any construction work in Ethiopia. The ponents of various spaces and prepares specification for firms are classified according to size, expertise and finan- the project. Quantity surveyor prepares bills of quantities cial capability by the ministry of work and urban devel- and final cost check. Engineers finalise their drawings and opment (MWUD). The self-building sector is character- specifications. ised by an informal sector, consisting of informal groups that supply materials and labour. These informal groups Climatic Design of Buildings are not licensed or registered. However, they employ a great number of people. The professional services sector The decision to incorporate climatic design criteria is consists of architects, civil engineers, electrical engineers, based on the climatic conditions prevailing in a given sanitary engineers, and mechanical engineers, quantity area. The most common design parameters employed in surveyors and surveyors who provided the design exper- passive design of buildings in Ethiopia include orienta- tise. The services of these consultants are not utilised in tion, shading, ventilation, glazing and terminal properties the informal and self-build sectors. There exists a great of materials. separation between the design consultants and the con- tractors. This generates conflict in the construction proc- ess and results in project delays and cost escalations due Building materials to claims. It is important that methods for conflict mitiga- In Ethiopia the major problem is building materials, espe- tion are developed for the industry. cially the roofing materials. As a common practise round tree (usually Eucalyptus tree) and corrugated iron sheets are widely used. Today, these materials have become very Design of buildings expensive so that low-income people are almost unable to build their houses. Reinforced concrete slabs were tried, The design process but they were found out to be difficult to make water tight in most constructions. This in fact could be improved if The design process in building design enterprise (BDE) proper management and good quality control of materials and other consultants of the design of buildings in the were available. But for low cost houses, a rather cheap formal sector is a co-operative effort between the client roofing material should be introduced. Several research and various consultants. The client provides a set of re- works are still on the way to find a replacement for the quirements and constraints that the consultants attempt corrugated iron sheet. Even though concrete results are satisfy during the design process. To satisfy the client not yet obtained. brief, a design team is constituted which consist of all the consultants. The team in most cases is headed by the ar- Earthquake safety chitect or by the consultant in recent times. The consultant is appointed by the client and takes care of the client’s in- Since the Great Rift Valley pass through Ethiopia, some terests according to the general condition of construction. cities are categorised under the seismic zone of Ethiopia. The contributions of each consultant in the design process Now days due to this, every building is designed consid- can be summarised as follows: ering the expected maximum earthquake loads. According to the Ethiopian standard code of practise, comparisons • Brief Stage Between wind loads and earthquake loads are considered Client provides the design brief that consists of the re- and every building is designed based on the worst condi- quirements and constraints to the design team. tion. • Sketch Design Stage Architect prepares a preliminary sketch to satisfy the de- Building regulations signs brief and possibly provides alternative proposal. Quantity surveyor prepares preliminary cost estimates The building code sets out building regulations and re- based on the Architect’s design sketch. Quantity surveyor quirements. It is a legal document and it confers powers provides the initial cost plan that forms the basis of cost to all the local authorities to over see that the building control and budgeting. Client approves sketch and cost es- code and building by-laws are maintained in the areas of timates. their jurisdiction. But since the housing policy of Ethiopia • Scheme Design Stage was not strong in the past, several disorganised urban Architect designs to a greater detail to meet the submis- plans, designs, construction methods are visible. To over- sion requirements of the local authority. Quantity sur- come these problems, research works on up grading low- veyor undertakes various costs, checks and ensures that income housing, proposing new low-cost housing pro- the budget is not exceeded. Architect provides scheme de- jects, introducing new sanitation methods, use of local signs to the civil (structural), mechanical and electrical building materials and transfer of construction technology engineers for the engineering design of the project. Archi- are still in progress. It is my belief that the out come will be beneficial and applicable in the country to somehow overcome the housing problems of the country. 2 Construction in Ethiopia Standardisation Construction and management Standardisation in building is a process of creating vari- ous elements in building to a certain specification size and Project organisation quality. Standardisation is an important principle of ra- Most common form of project organisation practised in tionalisation and requires that buildings be built of stan- Ethiopia is the line staff organisation; figure below shows dardised components. The other benefits of standardisa- Construction organisation structure. Deferent organisa- tion include reduced Construction time, improved quality tions have deferent levels depending on the magnitude of and reduced costs. In Ethiopia there has been standardisa- project and staff available. tion programs in the industry, and also major manufactur- ers have been offering standardised product range. Stan- dardised materials available to the industry include roof- ing materials, pre-cast concrete materials, steel windows, Client doors and electrical fittings. Con- Energy conservation Consultant tractor Ethiopia’s main sources of energy are wood fuel, petro- leum and hydro electricity. Alternative sources of energy like biogas; solar energy is being developed. Ethiopia is currently facing energy crisis. For example even though De- Contract Material housing problems exist, the growth in demand for elec- sign admini test tricity is more than expected and the situation is more se- stration and rious for fuel wood, where the shortages have led to rise supervision in prices of charcoal. Use of fuel wood is also an impor- tant cause of deforestation. Energy conservation guideline Inspection for buildings does not exist and energy use is not regarded as major design criteria in buildings. The designers are Project designing more and more energy incentive buildings that Engineer relay more on air-conditioning, artificial lighting and me- chanical ventilation systems. There is a need for research studies on energy use in buildings and the possibilities of energy conservation. Low-income housing Project Finance Purchas- Labourer The provision of adequate shelter for every family has engineer ing been the long-term objective of the government. In urban areas there is a high population growth that has led to de- Table 1 Project Organisation table velopment of squatter settlements. The situation is charac- terised by reduced access to basic infrastructure like water There are various stages involved in the construction pro- sanitation, building and planing regulations that discour- cess. age development of low-income housing and weakening • Construction activities: effective building activities municipal authorities. The projected housing need, taking require the co-operation of experts of various disci- in to account the population growth rate is about plines i.e., to construct within the agreed limits of 100,000,000 up to the year 2010. The Ethiopian govern- cost and time. ment has developed several strategies and programmes • To construct within a specified quality and according aimed at alleviating housing shortage. These include set- to the contract documents. tlement up grading, site and service schemes, tenant pur- • To control function includes feed back and belongs chase, encouraging owner building and institutional pro- principally to the client although all other functions vision of housing to employees. should have their Own control activities. To meet this need the government should revise the na- The building project management function is best, if per- tional housing policy and encourage development of low- formed by specialised professional management or or- cost materials technology and it’s dissemination. The ganisation. The project management has control over the government should ensure the housing finance is made entire process, co-ordinates it and has authority to make available to developers and homebuilders. decision on any problems that may arise. Its authority is The government should provide land infrastructure for exercised continuously rather than intermittently. The housing development. To reduce speculation on land, the project management is able to detect and resolve conflicts government should introduce direct tax on idle land. The between quality and cost or between cost and time. role of the NGO’s, in the provision of shelter should be encouraged. 3 Alem Tesfahunegn Project financing Tendering documents Building and financing within the country: Tendering documents are important guide to the bidders There are various forms of financing building projects in and should therefore contain enough and unambiguous in- Ethiopia. Depending on the type and the nature of the pro- formation regarding obligation of the parties involved. ject. To minimise the housing problem in the country, es- Tendering document must contain pecially in densely populated cities, the government as • Information on the kind and quality of materials, well as privet owners are constructing many new rental • Information on the required quality of the finished apartments. For the private sector, there is a special loan work, arrangement from housing and saving bank of Ethiopia. • Information on administration and legal matters To minimise the housing problem and having owned usually the descriptions are referred to existing house each person, the agricultural and industrial devel- general documents as far as possible. opment bank of Ethiopia is giving loans for house build- In Ethiopia, some of the references are ers. To be eligible to get a loan from the bank, it is a re- • national or international standards, quirement that the client should manage to have at least • general conditions, 35% of the total estimated cost of the building. Then he • Regulations laws and by laws. could obtain the rest 65% from the respective banks. The combined interest per year is 10.5% since the government After all the above descriptions are stated in the specifica- through the country owns land. It should be noted that it tions, the contractor submits his prices mainly depending could be obtained from the government by leasing. Usu- on the estimated quantities of the Project. For variations ally the lease will last for about 99 years. But due to further negotiations will be made between the client and shorter loan term and the higher interest value, very few the contractor. have used the opportunity, in addition the average in- The transfer technology is best undertaken through comes of the middle class are too low to cover the pay- joint ventures between local and foreign contractors. ment of their loans to the banks regularly. Therefore, the main problems encountered by the sector should be Information technology clearly identified and studied. The Ethiopian socio-economic development is based on Budget and budget control local and traditional technologies, which have evolved over centuries in response to the subsistence needs of the Cost estimates are prepared at end of the design stage to people. However, recent appropriate technologies, such as establish the project budget. Consultant Quantity Sur- computer for design, latest machinery for construction veyor appointed undertakes preparations of the cost esti- etc. is nevertheless taking ground in all sectors of the Na- mates of the project by the client. The Quantity Surveyor tional economy. Especially, in the housing sector where, uses several methods to prepare cost estimates depending over the past few years, thousands of housing units have on type of project. This estimate is normally used as a been constructed utilising not only locally available build- yardstick for cost control during design, tendering and ing materials, but also designed and executed Ethiopian Construction process. The main objective for establishing national tool and equipment. a cost estimate is to be used as a basis for cost control during execution of the construction project, to establish Experiences to use in future projects target budget for the given project, to determine the scope of the project and to establish cash flow and cost forecast- As far as I have the access with designers and quantity ing. surveyors, based on the experiences of the Lund Univer- sity short course of international construction manage- Quality and construction control ment, I will work with concerned parts • First of all any project before design starting must Quality control is the responsibility of the contractor. have a briefing stage, sketch design stage, scheme However it could be categorised into two parts i.e. design stage and detail design stage. • The quality of workmanship • Design should include the climatic design of • The construction materials. building materials, earthquake safety and energy Concerning the workmanship, it is usual to have experi- conservation for low-cost housing as well as for enced Foreman to be on the Construction Site continu- complex buildings. ously until the project is completed. • As far as quality is needed for construction of Apart from this, the building materials are tested to en- buildings, quality control is expected to make pe- sure the qualify i.e. since the Ethiopian standard code of riodic quality checks and ensure that the contractor practise sets minimum quality requirements, the materials complies with all the quality controls. should fulfil the standards specified by the code before using them in the construction project. These qualitative Conclusions tests are mostly done according to the Ethiopian standards It is important that training extends beyond the academic institution, by building design enterprise, as well as by the training, the professional disciplines should ensure con- university and other firms. tinuos professional developments of its various members. 4
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