Jurnal Jabatan Seni Bina
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APPRAISING THE CRITERIA FOR CONTRACTORS’ PREQUALIFICATION ON SELECTED PUBLIC TERTIARY EDUCATIONAL BUILDING PROJECTS IN SOUTHWESTERN NIGERIA
Full text linkThe success of any construction project is dependent on construction contractor to a great extent. Therefore, it is of paramount essence to select a qualified contractor in the execution of construction projects. This study aims at identifying the important criteria for selection of contractor which can be leveraged upon by the client in order to achieve successful building projects. With questionnaire survey adopted, the study recorded high response rate of 65%, out of 120 questionnaires administered on the respondents, above the usual trend of 20-30%. The questionnaire used and data collected were valid and reliable respectively. The Cronbach alpha values of reliability analysis range between 0.732 and 0.910. It was found that the major criteria for tertiary educational building (TEB) projects procured via open tendering route are bid amount and financial soundness while technical ability and management capability are for selective tendering arrangements. Regardless of the routes employed to actualize TEB projects, capital bid, financial status, experience, experience of technical personnel and client-contractor relationship are the most important sub-criteria for contractors’ prequalification. The study recommends that not only construction client should give adequate cognizance to the aforementioned criteria but also the contractor during pursuit of better evaluation of bids technically and financially
ASSESSMENT OF THE LEVEL OF AWARENESS OF SUSTAINABILITY PRACTICES AMONG CONSTRUCTION FIRMS IN NIGER DELTA, NIGERIA
Full text linkThe importance of sustainable development in Niger Delta, Nigeria cannot be overemphasised. Hence the aim of this research is to assess the level of awareness of sustainability practices among construction firms in Niger- Delta, Nigeria. Data were obtained using 1179 copies of structured questionnaire, administered by the researcher and research assistants. The methods of data analysis were simple percentage, mean score, Kruskal – Wallis and Bonferroni- Dunnett test. The average mean score of 3.48 indicates that the level of awareness of sustainability practices among the construction firms in Niger Delta is high. The P-value is less than 0.05 significance level, hence the hypothesis was rejected. This indicates that there is a significant difference in the level of awareness of sustainability practices among the states in Niger Delta, Nigeria. This study concludes that there is a significant difference in the level of awareness among the states. This study also concludes that level of awareness of sustainability practices among construction firms in Niger Delta is high. It can be inferred that the high level of awareness will lead to a high level of adoption of sustainability practices among construction firms which will, in turn, lead to the high performance of the construction firms
KAEDAH PENERAPAN KELESTARIAN PADA BANGUNAN TINGGI DI KOREA SELATAN
Full text linkKajian ini berkaitan dengan penerapan kaedah kelestarian pada bangunan tinggi di Korea Selatan. Kajian ini dikendalikan untuk melihat serta memahami konsep-konsep kelestarian yang bukan hanya merangkumi aspek teknologi hijau tetapi juga aspek alam sekitar, ekonomi dan kemanusiaan. Pelbagai salah faham boleh timbul apabila konsep kelestarian cuba diadaptasikan kepada bangunan tinggi. Kajian literatur dijalankan bagi memahami konsep kelestarian dari sudut global dan juga dari sudut bangunan melalui kajian kes. Kajian kes dijalankan pada dua bangunan di Korea Selatan iaitu bangunan ibu pejabat Amorepacifc HQ oleh David Chipperfield Architects dan juga ibu pejabat Shinsegage International oleh Olson Kundig. Kaedah penerapan elemen kelestarian dapat dilihat melalui pemerhatian ke atas bangunan pilihan serta disusuli dengan kajian literatur bangunan. Diharapkan kajian ini dapat membantu serba sedikit dalam memahami apa itu kelestarian dan bagaimana ia diterapkan kepada bangunan tinggi di Korea, dan seterusnya memberi gambaran bagaimana teknik yang sama dapat digunapakai di Malaysia
PENDEKATAN REKA BENTUK LANSKAP PADA BANGUNAN TINGGI
Full text linkPembangunan pesat masa kini menyaksikan bangunan daripada tipologi bangunan tinggi mendominasi latar langit bandar-bandar di seluruh dunia, terutamanya bandar komersial dan perdagangan. Situasi ini lahir daripada masalah kekurangan tanah, memandangkan tanah adalah satu komoditi yang amat terhad. Semakin kurang tanah, semakin tinggi nilainya lebih-lebih lagi apabila plot tanah tesebut terletak di lokasi strategik, seperti di kawasan bandar ataupun berdekatan dengan hab pengangkutan. Harga tanah yang kian melonjak memaksa pembangun untuk memanfaatkan penggunaan tanah dengan optimum agar pembangunan yang dibina dapat menjamin pulangan yang setimpal. Maka, plot tanah digunakan semaksimum yang mungkin untuk pembinaan bangunan, dan sedikit sahaja ruang dijadikan untuk tujuan landskap. Memandangkan landskap merupakan salah satu perkara yang wajib disediakan oleh pihak pembangun bedasarkan garis panduan yang dikeluarkan oleh pihak berkuasa tempatan, arkitek dan pembangun datang dengan pelbagai idea dan cara untuk mereka membentuk landskap pada bangunan tinggi. Justeru, objektif kajian ini dijalankan adalah untuk mengenal pasti pendekatan yang diguna pakai oleh pembangun dan arkitek dalam reka bentuk landskap pada bangunan tinggi. Kajian dilakukan dengan menggunakan kaedah kajian pustaka terlebih dahulu, lalu disertakan dengan beberapa buah kajian kes. Kajian ini juga membincangkan pendekatan reka bentuk landskap yang diaplikasikan dalam jenis bangunan yang berbeza. Hasil kajian ini merungkai beberapa contoh bangunan tinggi di Malaysia berserta pendekatan landskap yang diguna pakai pada bangunan tersebut bepandukan situasi, status, dan konteks bangunan tersebut.Kata Kunci: Landskap, bangunan tingg
RETROFITTING OF A HISTORIC PUBLIC BUILDING FOR ENERGY EFFICIENCY: EXPLORING MEASUREMENTS AND ATTITUDES FOR HERITAGE CONSERVATION PROFESSIONALS
Full text linkIn the last few decades, there is a trend towards the energy performance enhancement and improve of the indoor comfort conditions of heritage buildings. The architectural heritage and aesthetic value do not allow typical retrofit intervention. All the Governmental and planning directives are mainly sympathize on saving energy in existing buildings and are not afford the historical buildings. Architectural Heritage bodies (national and international) have to act to determine type of energy retrofit measurements that can be applied to historical buildings to conserve their value. In the other hand there is a need to enhance the energy efficiency and environmental sustainability of historic buildings. The aim of this project is to reduce the energy use of a heritage building through technical interventions and selecting specific retrofit measurements. Then evaluate each of these interventions through sustainable tools. Designing energy efficiency retrofits for existing buildings has benefit for environmental, economic, social, and health sectors. This study describe a methodology for adopting IES-VE Virtual Environment - Integrated Environmental Solutions tool as energy and environmentally conscious decision-making aids. The methodology has been developed to monitor buildings for potential improvements and to support the development of retrofit strategies. Here present a case study of a banqueting renovation project, implementing IES approaches to energy efficiency retrofits in Historical public building (HPB). To generate energy savings, there are several alteration of improving were added to the building. In each alteration for the building energy consumption and mean radiant temperature were examined. The results reveal that with all the improvements that applied to the building there is a potential in reducing 45% the total system energy demand. Restoration of historical building is of paramount interest for preserving the character and history of a locality. Environment friendly retrofitting, on the other hand, helps reducing the footprint of such old energy inefficient structures. Simulation of various energy efficient retrofitting is of paramount interest for planners to decide upon the best option for optimal performance of the building. Although a number of articles have been published in this area, every new building comes with unique challenges, therefore unique in its own way and highly significant
THE EFFECTIVENESS OF USING FURNISHINGS TO IMPROVE THE HOUSING ACOUSTIC OF LOW-COST FLATS IN MALAYSIA
Full text linkThe acoustical performance of high-rise residential housing in the marketplace of Malaysia is under satisfactory as the residents are consistently dealing with internal and external noises. One of the most practical solutions to improve housing indoor acoustic comfort is by introducing furniture and furnishings which can absorb sound energy. The objective of this research is to evaluate and compare the acoustical performance of public low-cost multi-storey housing (PPR low-cost flats) in Kuala Lumpur in unfurnished and furnished conditions. Three scenarios: (1) empty housing unit without any furnishing, (2) housing unit furnished with basic furniture, (3) housing unit furnished with basic furniture and extra furnishings (carpet and curtains), were modelled in Google SketchUp and exported into ODEON Room Acoustic Software 13.0 for simulation. Results were then compared in the parameter of Reverberation Time (T30) and Speech Transmission Index. Based on results, scenario (3) demonstrated the best improved result in overall after evaluating the performance of acoustical criteria. The more the furniture and furnishings with higher absorption coefficient introduced in the housing unit, the lesser the Reverberation Time and higher Speech Transmission Index, resulting in a better indoor acoustical environment
SYSTEM PATHOGENS INHIBITING CONSTRUCTION PROJECT RISK MANAGEMENT PERFORMANCE: DELIBERATE IGNORANCE PERSPECTIVE
Full text linkRisks have emerged as one of the most significant project management concerns due to their effects on construction project performance. Several literature attributes the increasing consequences of risks to low awareness and ineffective management practices. This paper draws attention to the existence of latent pathogens affecting the efficiency of risk management performance (RMP). The objective was to determine whether construction stakeholders’ ‘deliberate ignorance’ of inherent risk management pathogens classified as complexity, complicatedness, mindlessness, and project pathologies affects RMP. A survey questionnaire administered to 135 certified construction project managers in Nigeria provided the data used for the study. Data analysis engaged descriptive statistics and Fuzzy Set Theory. The result revealed that ineffective RMP arise mainly from factors related to project complexity and mindlessness. Complexity increases project uncertainty without appropriate tools to address them; while the criticality of the relationships between risks elements continuously vary in practice. Mindlessness depicts stakeholders’ ‘wilful ignorance’, biased perception, and mind-set towards risk management. The results suggest that reducing project complexity, biased perceptions and improving stakeholders’ capacity would benefit RMP. Therefore, improving the capacity of stakeholders and developing appropriate tools to address the changing nature of risks are areas to improve RMP
Application of Theory of Constraints in Quantity Surveying Firm
Full text linkAs the construction projects grow in size and complexity, the roles of Quantity Surveying (QS) firms which provide QS services getting more significant. Theory of Constraints (TOC) views every process in a system are linked and bottleneck constraint needs to be identified and dealt with so that to achieve continuous improvement in the whole operation. So far, no research conducted on bottleneck constraints in QS firms working environment as well as the application of TOC to the constraints. Removing constraints are the most effective way to improve the overall system performance. As QS firm does not involve inventory, the TOC application and its impacts might be different. This research focused on how TOC approach could be applied in solving the bottleneck constraint appeared in the QS firm. This study adopted questionnaire surveys and semi-structured interviews with QS practitioners, which directly involved in the management of the QS firm. Descriptive and content analysis are adopted to analyse the identified bottleneck constraint, TOC methodology used to deal with the constraint, as well as the impacts of TOC to the QS firms. The discussion outcome further explains the TOC methodology used to deal with the constraint appeared and the impacts of applying it. In overall, the most common bottleneck constraint in the QS firms is the delay of other project participants. TOC can be applied in QS firm working environment and it brings positive impacts as it aids in the decision-making in QS firms
KESAN TERHADAP PENGGUNAN SISTEM FASAD KACA PADA BANGUNAN TINGGI
Full text linkKajian ini dijalankan dengan membuat penelitian bagaimana fasad hijau diterapkan pada bangunan pencakar langit. Kajian ini difokuskan lebih terperinci mengenai pengaplikasian sistem fasad kaca kepada bangunan tinggi. Pelbagai persoalan timbul kebelakangan ini seperti keberkesanan bangunan tinggi di Malaysia yang mengaplikasikan sistem fasad kaca samada untuk menangani permintaan tuntutan tenaga dalam bangunan atau hanya bercirikan estetik. Penghijauan fasad secara umumnya memberikan potensi penyejukan di permukaan bangunan tinggi, yang sangat penting semasa musim panas di iklim panas. Kesan pendinginan fasad hijau juga memberi kesan kepada iklim dalaman di dalam bangunan dengan menghalang pemanasan bangunan. Justeru, tumpuan kajian diberikan kepada pengenalan pelbagai jenis sistem fasad hijau dan analisis kesan sistem fasad kaca pada perubahan suhu dan kesan terma. Kajian ini merupakan keperluan kepada projek Rekabentuk Studio Sarjana Senibina 2 bertemakan bangunan pencakar langit dan bertujuan membantu secara tidak langsung turut memberi gambaran kepada projek studio sarjana senibina 2 bagi projek bangunan pencakar langit dan aplikasi sistem fasad kaca pada sesebuah bangunan tinggi
TIPOLOGI PERUMAHAN BANDAR MIKRO BAGI GOLONGAN BUJANG B40 DI KUALA LUMPUR
Full text linkKajian ini dijalankan bertujuan mengenalpasti dan memahami tipologi rekabentuk perumahan bandar mikro yang sedang mengambil tempat di Bandaraya Kuala Lumpur. Tipologi perumahan bandar mikro yang dibangunkan ini terletak di tengah pusat bandar dan dikhususkan kepada golongan sasar B40 yang baru memulakan karier serta mempunyai pendapatan yang rendah. Kedua, cadangan tipologi perumahan bandar mikro juga dikaji sebagai usaha untuk memahami lebih terperinci mengenai konsep perumahan bandar mikro, reka bentuk dan kepentingannya di kawasan perbandaran. Kaedah yang digunakan untuk penyelidikan ini adalah dengan pemerhatian di tapak kajian melalui kaedah kajian kes. Kajian ini akan dijalankan ke atas perumahan bandar mikro DBKL serta cadangan rekabentuk dari firma arkitek tempatan iaitu Firma Tetowowe Atelier sebagai kajian kes bagi memastikan matlamat kajian ini dapat dicapai. Oleh itu, hasil kajian dan dapatan yang diperoleh ini akan dimanfaatkan sebagai pendedahan dan panduan kepada para arkitek dan perekabandar dalam memahami rekabentuk tipologi perumahan bandar mikro khususnya di Malaysia