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Contribution of Risk Factors for Infrastructure Development of Nepal
Issue:
Volume 5, Issue 3, May 2017
Pages:
124-131
Received:
12 January 2017
Accepted:
25 January 2017
Published:
14 March 2017
Abstract: All most all infrastructure projects are being over running in terms of either time or amount and even deteriorated the quality of the projects. For new professionals and the experts are learning bad train which must be stop it as soon as possible. This is because of contributed risk factors, No body, either government agency of Nepal take care about this risk factors or from public, the infrastructure projects which are losing a lot every minute, quality and money. This research explores to analyze, and mitigate the understanding of risk management in the infrastructures development projects. Deeper understanding by means of detailed study during pre-planning and planning phase is expected to enhance more effective risk management and, therefore, a better productivity and better quality to be achieved, which creates the satisfactions to all stakeholders.
Abstract: All most all infrastructure projects are being over running in terms of either time or amount and even deteriorated the quality of the projects. For new professionals and the experts are learning bad train which must be stop it as soon as possible. This is because of contributed risk factors, No body, either government agency of Nepal take care abo...
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Construction Innovation of Building Complex in Maritime Service Agglomeration Area—Case Study of Shanghai
Pengcheng Wu,
Xuefeng Wang,
Jiawei Ge
Issue:
Volume 5, Issue 3, May 2017
Pages:
132-140
Received:
11 February 2017
Accepted:
3 March 2017
Published:
15 March 2017
Abstract: Agglomeration and building complexes are two mainstreams in modern urban development, planning and construction. The combination of agglomeration theory and building complex theory is proved to be feasible and useful through function analysis of Shanghai Maritime Service Agglomeration (SMSA) area. The findings point out that construction innovation of building complexes should comply with the integral demand of talents, companies and government. In addition to external scale effect, cost reduction, talents attraction and other agglomeration effects, function innovation of SMSA is analyzed and investment is made in four main aspects as comprehensive maritime services, resource & energy saving, environment-friendly & green transformation and environment adaptive yacht harbor operation. The assessment and discussion on the construction project witnessed a great success that social and economic benefits are abundant. The experience of SMSA is summed up to provide theoretical and practical reference for the construction of other building complexes and agglomeration areas.
Abstract: Agglomeration and building complexes are two mainstreams in modern urban development, planning and construction. The combination of agglomeration theory and building complex theory is proved to be feasible and useful through function analysis of Shanghai Maritime Service Agglomeration (SMSA) area. The findings point out that construction innovation...
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Energy Saving Assessment for Building Envelope of Supermarket Based on EnergyPlus and Openstudio
Deependra P. Yadav,
Sushil B. Bajracharya,
Sudip Bhattrai
Issue:
Volume 5, Issue 3, May 2017
Pages:
141-147
Received:
25 February 2017
Accepted:
18 March 2017
Published:
28 March 2017
Abstract: In this paper, a supermarket model located in Kathmandu is established by simulation software EnergyPlus. As one possible approach to improving the energy performance of the commercial building, this study develops an whole building energy simulation model to investigate the influence of two types of alternative walls – a insulated wall, a brick wall with 50 mm air gap and 4 inch additional brick wall on the energy performance of Bhatbhateni department store building at Krishna Galli, Lalitpur, Nepal. Single and double glazed glasses with varies thermal properties has been analyzed. This study finds that the 1 inch insulated external walls significantly improve the performance compared to the non-insulated wall. It is also found that the double glazed glass window models Envision and Reflectasol reduces the largest amount of energy. The results of this study can be used as basis data for estimating the potential energy saving with the replacement of alternative envelope (wall and window) under similar climate and orientation of the buildings.
Abstract: In this paper, a supermarket model located in Kathmandu is established by simulation software EnergyPlus. As one possible approach to improving the energy performance of the commercial building, this study develops an whole building energy simulation model to investigate the influence of two types of alternative walls – a insulated wall, a brick wa...
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Study of Hydraulic Jump Length Coefficient with the Leap Generation by Canal Gate Model
Bambang Sulistiono,
Lalu Makrup
Issue:
Volume 5, Issue 3, May 2017
Pages:
148-154
Received:
22 February 2017
Accepted:
20 March 2017
Published:
7 April 2017
Abstract: The length of hydraulic jump is a parameter needed to design the stilling basin dimension in the downstream of the weir or the other water structure in the river and channel. To determine the hydraulic jump length was needed function with some flow variables associated with the hydraulic jump phenomenon. One of variable to obtain the hydraulic jump was the hydraulic jump length coefficient (Cj). A study to determine the hydraulic jump length coefficient was conducted experimentally in laboratory. The data of experiment result was analyzed by regression technic. The results are the hydraulic jump length coefficient in fixed value and function with variable is a ratio of upstream and downstream depth of the the hydraulic jump.
Abstract: The length of hydraulic jump is a parameter needed to design the stilling basin dimension in the downstream of the weir or the other water structure in the river and channel. To determine the hydraulic jump length was needed function with some flow variables associated with the hydraulic jump phenomenon. One of variable to obtain the hydraulic jump...
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Investigation of Major Success Factors on Building Construction Projects Management System in Addis Ababa, Ethiopia
Mamaru Dessalegn Belay,
Esayas Alemayehu Tekeste,
Sintayehu Assefa Ambo
Issue:
Volume 5, Issue 3, May 2017
Pages:
155-163
Received:
20 January 2017
Accepted:
1 March 2017
Published:
10 April 2017
Abstract: Major success factors (MSFs) in construction industry are inputs to project management practice which can lead directly or indirectly to project success. Ethiopia is one of the developing countries which cannot achieve its construction project goals due to lack of adherence to different major success factors. This is also true in in the study area of Addis Ababa. The purpose of this study was to investigate major success factors in building construction projects of Addis Ababa. The data collection was conducted using questionnaire, desk review and interview. 120 questionnaires were distributed to 7 contractors, 4 clients, 5 consultants and 2 others companies. From 120 questionnaires, 81 questionnaires were returned back and used for analysis. From 68 identified major management success factors; decision making effectiveness, project delivery system, timely decision by owner/owner’s representative, contractor’s cash flow, leadership skills of project manager and adequacy of fund are the most significant success factors. Considering results of this research, in order to accomplish building construction projects successfully the management should have effective decision making ability. The project delivery system also has great role for accomplishing building projects successfully.
Abstract: Major success factors (MSFs) in construction industry are inputs to project management practice which can lead directly or indirectly to project success. Ethiopia is one of the developing countries which cannot achieve its construction project goals due to lack of adherence to different major success factors. This is also true in in the study area ...
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Analytical Investigation of the Effect of Brick Partition Wall on Building Frame
Md. Mahmudul Hasan,
Md. Shamim Al Razib,
Supriya Mondal
Issue:
Volume 5, Issue 3, May 2017
Pages:
164-168
Received:
23 March 2017
Accepted:
31 March 2017
Published:
13 April 2017
Abstract: Structural analysis of building frames represents an important field of application of digital computers to use stiffness approach in order to evaluate their complete stress and deflection behavior. Generally a frame is analyzed without the presence of brick wall in the frame. In the present study, if the brick walls present in the frame whatever the variation of reaction, bending moment, shear force, displacement or deflection of the frame which is then compared to the frame without the brick wall. In the present investigation a five storied building frame has been analyzed under various load combinations. From the frame analysis, it has been investigated that if no nodes of brick wall are coincide with the nodes of beam and column then whatever its effect on moment, reaction, shear force, displacement or deflection. This type of building frames are highly undesirable in lateral loads and also in seismically active areas because in this case there are no connection between the brick wall and the beams and columns, and due to this reason the building frames which have consistently performed very poor behavior and cracks may occur under the beams and also at the side of partition wall. In another case, if a brick wall node is coincided with beam and column nodes then its effects on the results are measured. The whole work has been performed by using computer software STAAD-PRO from which different parameters are computed. If there are well connections between beams and brick nodes, it increases the stiffness of the structure. This reveals significance of frame analysis which provides an accurate and economical solution. A good agreement between the values of various force functions given by approaches is exhibited. It is found that regular system of bays and same length and thickness of connecting beam is favorable for reducing deflection in partition wall. If there are proper connections among the brick walls and the beams and also with the columns than the deflection will be decreased and Stiffness will be increased.
Abstract: Structural analysis of building frames represents an important field of application of digital computers to use stiffness approach in order to evaluate their complete stress and deflection behavior. Generally a frame is analyzed without the presence of brick wall in the frame. In the present study, if the brick walls present in the frame whatever t...
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Governance in Land Acquisition and Compensation for Infrastructure Development
Subash Ghimire,
Arbind Tuladhar,
Sagar Raj Sharma
Issue:
Volume 5, Issue 3, May 2017
Pages:
169-178
Received:
15 March 2017
Accepted:
31 March 2017
Published:
17 April 2017
Abstract: Investment in infrastructure development such as road, railways, airport, hydropower, irrigation and town development for public purpose is very important for the development of any country and needs a huge quantity of land. The main objective of the paper is to find out the gaps on land acquisition and compensation processes for infrastructure development projects in Nepal. This research paper is based on the desk study using the experiences of the cases in infrastructure development projects in China, India, Malaysia and Norway. In this study, we emphasize three main issues for identifying the gaps in land acquisition and compensation and these are i) law and regulations, ii) procedure for land acquisition and compensation, and iii) land valuation approaches for compensation. The relevant land governance elements such as public participation, access to information, fair compensation, transparent procedure and stakeholder co-ordination are derived using the World Bank Land Governance Assessment Framework (LGAF) and UN-FAO Voluntary Guideline of Governance of Tenure. The study shows that the practices and processes in compulsory purchase and compensation are quite different in different countries due to its legal, social and political contexts. The study reveals that the different countries have different law and regulations, procedure for land acquisition and land valuation approaches depending upon social, political and economic conditions of the country. The major gap identified from the study about the situation in Nepal is the implementation aspects of land acquisition, compensation and land valuation system in reference to good governance principles namely public participation, access to information, transparent procedure and stakeholder’s interaction.
Abstract: Investment in infrastructure development such as road, railways, airport, hydropower, irrigation and town development for public purpose is very important for the development of any country and needs a huge quantity of land. The main objective of the paper is to find out the gaps on land acquisition and compensation processes for infrastructure dev...
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Study on Mechanical Characteristics of Tunnel Support System in Sandy Cobble Stratum
Gong Juan,
Li Borong,
Zhang Xu,
Wang Chenzhong,
Liu Yikai,
Shen Mindong
Issue:
Volume 5, Issue 3, May 2017
Pages:
179-187
Received:
21 April 2017
Published:
22 April 2017
Abstract: Because the sand gravel stratum with loose structure, good gradation, easy disturbance, poor stability, deformation and other characteristics of long duration, large deformation and collapse failure phenomenon is extremely easy to cause in the tunnel construction, leading to a primary support structure for strong deformation or even destruction, serious impact on the tunnel construction and safety, is one of the main problems encountered in tunnel construction. The paper based on the engineering background of Gongboxia sand gravel stratum tunnel, studied the Sandy pebble tunnel primary support stiffness and the influence of strength characteristics, also mechanical impact characteristics of secondary lining and timing. By studying the mechanical behavior of tunnel support system, the paper puts forward the parameters of the initial support of the sand gravel tunnel, and makes clear the relationship between the stress of the supporting arch and the stress of the lining and the timing of the two lining. The research results can provide supporting design reference for sand pebble stratum tunnel and similar projects.
Abstract: Because the sand gravel stratum with loose structure, good gradation, easy disturbance, poor stability, deformation and other characteristics of long duration, large deformation and collapse failure phenomenon is extremely easy to cause in the tunnel construction, leading to a primary support structure for strong deformation or even destruction, se...
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Influence of Silica Fume Incorporation on the Fresh, Thermal and Mechanical Properties of Expanded Polystyrene (EPS) Foamed Concrete
Magdy A. Abd-ElAziz,
Ahmed Serag Faried,
Mahmoud M. A. Kamel
Issue:
Volume 5, Issue 3, May 2017
Pages:
188-195
Received:
7 April 2017
Accepted:
15 April 2017
Published:
23 May 2017
Abstract: This paper aims to study the fresh, thermal and mechanical properties of lightweight concrete (LWC) incorporating expanded polystyrene foam (EPS) beads as a lightweight aggregate (LWA). Various mixtures of EPS foamed concrete are produced by partial replacing normal aggregates by 0%, 15%, 25%, 35% and 50% of EPS foam beads by volume. In EPS foamed concrete, the ordinary Portland cement (OPC) was replaced by silica fume (SF) with different ratios 0%, 5%, 10 and 15% by weight. Sixteen mixtures are prepared to investigate the fresh, thermal and mechanical properties of EPS foamed concrete. The test program includes determination of fresh density, slump, compacting factor, compressive strength, splitting tensile strength, flexural strength, modulus of elasticity and thermal conductivity. Generally, using of EPS beads in concrete decreases its mechanical properties and thermal conductivity, although the workability improvement. Replacing the OPC with SF improves the mechanical properties of EPS foamed concrete, this improvement continues to the percentage of 10% and ultimate improvement in the ratio of 5%. Modulus of elasticity improves in EPS foamed concrete with SF content till 25% EPS foam. The workability of EPS foamed concrete decreases with the increasing of SF ratios.
Abstract: This paper aims to study the fresh, thermal and mechanical properties of lightweight concrete (LWC) incorporating expanded polystyrene foam (EPS) beads as a lightweight aggregate (LWA). Various mixtures of EPS foamed concrete are produced by partial replacing normal aggregates by 0%, 15%, 25%, 35% and 50% of EPS foam beads by volume. In EPS foamed ...
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