Advanced Materials Research Vols. 243-249

Abstract: Informationization of construction resource and integration management of construction project is the key technology to achieve the project management informationized. Combining the knowledge base, decision support models, network planning technique and process management of computer all together, this article proposes a solution for integrated management system of construction project.

Abstract: This study examines construction waste generation and management in Taiwan. We verify the factors probable affecting the output of construction wastes by using data for the output of declared construction wastes produced from demolition projects in Taiwan in the last year, expert interviews, and research achievements in the past, and find “ on-site separation” is the factor with effects on the output of construction wastes via cross-correlation by algorithms such as K-Means and Decision Tree C5.0. It can be seen that the output (0.092(t/M³) with on-site separation or 0.329(t/M³) without on-site separation is highly correlated with the composition ratio of construction wastes and referred to as a valid conclusion.

Abstract: A fuzzy neural network (FNN) model embedded with a modified particle swarm optimizer (MPSO) is proposed in this study for cost estimation of construction projects. The proposed method has advantages over traditional FNN approaches in ways of generalization ability and automatic parameter optimization. Comparative studies show that this improved model is also superior to those of BP (back propagation) neural network, PSO-BP and PSO-FNN. Effectively improved accuracy of the developed model in cost estimation of construction project was discussed in case studies. This study provides a base for decision-making in the management of construction project.

Abstract: Combination with the characteristics of large public buildings, taking well considerations of maintenance of buildings on safety and reliability of the circumstances. Decision-making models of the large public building maintenance cycle was proposed based on maintenance of quality comprehensive evaluation. To quantify the degree of recovery of large public buildings based on the quality of maintenance using the method of AHP and Multi-level fuzzy comprehensive evaluation method. To make reasonable amendments on the reliability of experience according to the recovery degree of the reliability. In order to calculate the maintenance cycle of the large public buildings , the two models of maximum reliability and minimum total cost of building structure and equipment pipe components are applying with, and then to making dynamic arrangements of preventive maintenance cycle according to the quality of the maintenance.

Abstract: Recently, safety accident emergency management of construction project is an important issue not only for investors and governments but also for the companies that are in construction industry. Designing and evaluating safety accident emergency management is also crucial for the same sector’s development. Proposed method is based on fuzzy TOPSIS, which combined TOPSIS with triangular fuzzy numbers both in the rating of alternative and the weight of criterion. The closeness coefficient under fuzzy environment is calculated by using the concept of fuzzy positive-ideal solution and fuzzy negative-ideal solution. Then the rankings of the projects are determined according to their results.

Abstract: According to the characteristics of subway construction in Tianjin, a risk assessment indicator system has been established in subway construction. On the basis of traditional AHP (Analytic Hierarchy Process), the introduction of the concept of triangular fuzzy numbers evaluates the weight of risk factors in a more accurate and objective way. Adopting a fuzzy comprehensive evaluation mathematical model, by constructing membership matrix, the metro construction is not difficult to quantify the risk factors with the scientific evaluation methods. It can be proved that fuzzy comprehensive evaluation method used in subway construction process is a scientific, effective evaluation method.

Abstract: At present, there are a lot of means analyzing high-rise building fire risk index, but few of these combine the multi-criteria decision and the fuzzy evaluation. The Analytical hierarchical process (AHP) doesn’t consider the fuzziness of people's judgment, and the consistency test is very difficult. This paper will combine related principles of fuzzy mathematics with the AHP, by establishing fuzzy consistent judgment matrix to make high-rise building risk factors’ weight sequencing more accuracy and rational. The paper will also put forward its own views and suggestions in order to attract the attention of the concerned departments, so that the incidence of high-rise building fires can be reduced.

Abstract: In order to promote the development of crisis management in large-scale public buildings, to make solutions for the insufficient crisis management ,poor implementation and other issues. Crisis strategy evaluation system of large public buildings is proposed through the use of literature research and coding method from the perspective of their own. Three dimensions of 16 evaluations are proposed ,including basic security strategy, risk strategy of emergency response, recovery strategy in the hole life cycle of crisis management. In this section, the research and the calculation method are given, and to determine the index weight by expert investigation method. In order to make clear our strengths and weaknesses when facing emergencies through scientific and reasonable evaluation of current crisis management evaluation strategy. Such is so helpful to improve the theory of crisis management of large public buildings in the application and optimizing risk management, and so is to provid a more complete and effective decision basis for the crisis management strategy of large public buildings when facing emergencies.

Abstract: Although the infrastructure development projects under PPP operation which can fill the funding gap as a result of increasing demand for infrastructure development and reduced public sector funding capacity have been practiced since the late 80s, the $560 million Bird’s Nest (National Stadium) is the first stadium project in China using this procurement method. This project is generally considered as a successful case by most of the practioners and experts despite the operation right transfer occurred in 2009. Compared to the use of PPP in other field such as transportation, power generation and waste management, development of sports facilities for mega sport event with this model has its own unique features, risks and opportunities. This research identifies and analyzes the risks and opportunities through case study of the Bird’s Nest project. A survey and several interviews are conducted to solicit expert opinions from experienced practitioners and experts. According to the analysis, government behavior related risks and project level risks are found to be two groups of risks which are quite different for major sports facilities projects and general PPP projects.

Abstract: Due to the great negative impact, the construction industry needs to undergo a paradigm shift from traditional construction to sustainable construction. To reach the goal of sustainable development, the construction industry needs to intensify its efforts to move to a knowledge intensive mode. Based on the analysis of e-Cognos and the concept of ontology, this paper proposes that e-Cognos ontology can be applied in the development of sustainable construction process ontology, which is a key part of knowledge management system (KMS). Following this, the application process of ontology-based KMS is analyzed using IDEF0 modeling method. Finally, this paper analyzes interorganizational collaboration model in sustainable project.