BIM(building information modeling) has been actively applied to construction industries and to maximize its application through the life cycle of structure, various relevant technologies have been proposed. In particular, 4D sequencing management and 5D cost-related management were introduced as an improved version of the design review and interface control by 3D information design. On the other hand, the virtual construction using virtual construction equipment can sophisticatedly handle capacity, dynamic movement, collision boundaries of actual construction machines but it still stays at a low level in a technical sense. In this study, simulation systems based on BIM involving virtual construction equipment have been developed; then it is applied to the actual construction project to evaluate the safety and efficiency of construction equipments. It was confirmed that the simulation systems can be utilized to construct virtual construction site by using an effective 3D library of construction equipment and can plays a key role to secure construction safety and economic feasibility. Specifically, the simulation system are very useful for decision making by construction managers to select the optimum equipment and construction method with a better understanding for safety and cost-saving.

공공 건설공사 수행 중 계약기간내 공사를 완성하지 못하고 공사기간이 연장된 경우 그 지 연 사유에 대한 귀책과 추가비용 발생의 부담주체를 놓고 계약당사자간에 논란과 분쟁이 심화되고 있다. 건설공사에 있어서 공기지연에 따른 전체 공사기간이 연장된 경우 그 원인 제공을 누가 했 는지에 대한 책임을 분명히 할 필요가 있다. 공기지연 원인의 책임구분의 결과는 분명 일 방의 권리와 타방의 손해로 직결되고 명확한 책임구분이 되지 않는 경우 분쟁이 발생하게 되며 결과적으로 어느 일방은 정당하지 않은 손해를 입게 된다. 계약법상 공사기간의 연장은 계약상대자에게 책임이 있는 사유로 인해 약정한 계약기간 내 에 공사를 완성할 수 없는 경우와, 발주기관의 사정에 의해서 공사가 연장되는 경우가 대 부분을 차지하고 있다. 일반적으로 공기지연 사건이 발생한 경우 클레임을 제기하는 주체에 그 입증책임이 있는데 보통 계약상대자인 건설사가 주장·입증을 하게 된다. 이때 이를 증명 입증시 공식적인 문서 즉, 채무자에게 채무가 있고 이를 이행하지 않는 사실과 채무자에게 귀책사유가 있는 사실, 그로 인해 일정한 손해가 발생한 사실에 대한 근거를 함께 제시하여 명확히 밝혀야 한다. 또한 그 입증 결과에 따른 손해배상으로서 계약상대자인 시공사의 책임없는 사유로 인한 계약기간의 연장이 입증되면 발주기관에 연장기간 동안 발생된 ‘실비’ 보상 요구와 계약금 액 증액 청구 등의 행위가 가능함을 명심해야 한다. 하지만, 공기 연장으로 인해 발생한 손 실에 대한 보상이 가능한지의 여부는 계약당사자가 계약 문서를 통해 어떻게 합의 하였는 지에 따라 결정될 것이지만, 공기지연에 대한 귀책이 발주자나 시공자 모두에게 없는 경우 라면 원칙적으로 공기 연장은 가능하나 이에 대한 보상은 가능하지 않은 것으로 이해하여 야 한다

This study investigates the trend on application technologies of advanced composite materials and outlook on research development to the challenges associated with innovative applications of advanced composite materials in construction: 1) initiation of new construction materials; 2) development of rehabilitation techniques for aging infrastructural systems; 3) implementation of greener construction approaches; and 4) introduction of multifunctional advanced composite materials. This fundamental investigation will assure wide field implementation of advanced composite materials in construction.

This study is intended to evaluate a risk of overseas construction companies. To achieve this, a survey was empirically carried out to overseas construction site experts. The results were as follows. The relative importance of parent factors showed that‘social culture’(0.157) was the highest, followed by ‘institutional regulation’(0.150),‘environment’(0.145),‘productivity’ (0.142),‘economic finance’(0.137),‘market condition’(0.136) and‘political policy’(0.133). As for the above-mentioned findings, the most important risk factor in overseas construction was social culture of entry countries, followed by construction-related legal system. All construction companies, contractors and design companies said that social culture was the most important parent factor, varying from construction industry. And they said that workforce availability was also the most important in the importance of sub-factors, followed by conflict due to the differences in lifestyle. Consequently, it is important to manage risk for socio-cultural factors in overseas construction, risk for double workforce, and risk for the differences in thinking or lifestyle by the participation of multinational workforce.

Preventive measures against industrial accidents should take into account the safeguards of unsafe states, education, and managerial measures to control the underlying sources of unsafe and unsafe behavior. Technical and managerial problems are also attributable to the educational cause. In particular, in the in-house safety education system, many construction sites form formal safety education.Inherent safety education is the best safeguard against disaster prevention. In the future, the safety education coordinator and the safety education coordinator of the management and supervision of the safety supervisor and hazardous hazard workers will need to improve the active legal system that can be pursued by all trained persons.

The damage caused by dry weather accounts for a great deal of importance throughout the industry. construction safety manager is responsible for the most practical and important task of preventing disasters. Job training is critical to improve the ability of the safety manager. Therefore, an analysis of the operational system and the educational contents of the institution is required. The purpose of this study is to apply a specific training model for occupational training to activate the construction safety task system and improve the job competency of the safety manager. To create a specific educational model, the criteria and units of the construction safety management area presented by the NCS(National Competency Standards) were applied. Based on the task experience, the task experience was divided into four levels of managers, intermediate managers, advanced managers, senior managers, and the class of managers according to the level of duty assigned by each level of staff, organized by each level of class, and determined the method of teaching and assessing teaching methods. In the improvement of job training, the quality of education should be improved by dividing the educational content according to the level of task competency. In addition, it can be expected to increase the effectiveness of training fees and improve the quality of education by enhancing the educational quality of education fees and improving the quality of education by implementing the training sessions to implement the training sessions of the entrusted services to practice the education of the entrusted services. Applying a specific task training model along with these institutional improvements is expected to facilitate the activation of job training, enabling the ability of the safety manager to become a crucial factor in preventing the overall development of the project.

The purposes of this study are to analyze risks of construction step BIM(Building Information Modeling) applied project and improve it. Recently, construction industry has emphasized an importance of BIM for efficient utilization of various information. In the whole life cycle of huge construction project, there are cases introducing BIM and projects applying BIM are gradually increased to the work of construction step. However, the process of cooperation is not established, so the contents of BIM process of construction step are just showing rough fields and concepts of working utilization, so it's restrictive to utilize BIM actively on constructions step. Through results of case study in this research, Construction company risks of BIM business should be efficiently treated with Fuzzy-FMEA that is more precise than existing danger evaluation.

Safety accidents, which are called industrial accidents in construction work, are often caused by unstable physical and personal conditions combined during preparation and execution of work. It is difficult to manage all the construction works, but especially in the field of apartment construction work, complex and many kinds of works are being carried out at the same time. In the current construction, safety regulations such as safety management guidelines are generally well maintained, but the execution of manpower resources that can fulfill them is limited, and it is difficult to reduce the accident rate and loss cost. Therefore, in this study, it is a reality that most of the types of construction work are under contruction by subcontracting contract, so they are limit by methods of manual maintenance and safety education. Currently, the subcontractor is also allowed to perform safety management through the composition of the safety management review body, but it is operated formally. So alternatives to this were studied. As a result, safety accidents occur in the subcontractor's workplace due to vertical integration, which is a characteristic of the construction industry. Therefore, the safety management should be carried out by the subcontractor as well as the subcontractor It is concluded that effective and practical safety management can be achieved when management based on the personality that can communicate with each other through the management team is able to reduce the accident rate and loss cost.

This paper provides based on the research of previous researchers of the learning organization, this study selected the factors that would influence the introduction effect of the learning organization operation in the construction companies. The result of this study is that the learning organization operating system has the effect of job performance, job satisfaction, organizational commitment and ultimate The results of this study are as follows.

This study is intended to look into the effects of employee's working environment on work loss and productivity in overseas construction sites of Korean construction companies. To achieve this, a survey was empirically carried out to overseas construction site experts. The results were as follows. The weight by 5 loss factors of overseas construction projects showed that project management environment was the highest, followed by construction company environment, owner environment, government support environment and entry country environment, which the biggest work loss factor was the project management section. The weight by loss factors of entry country environment showed that local environment was highest, followed by social environment, economical environment, political environment and cultural environment. In other words, awareness and management of weak social bases, which are not well-institutionalized as properties of most preferred loss, are important in that local environment of new entry countries is the most important thing. As for the above-mentioned findings, the most important project management of overseas construction projects will need to take advantage and have know-how for construction companies' ability to cope with a crisis or the most preferred management and loss prevention of owner environment, government support environment and entry country environment.

Many industrial accidents have occurred continuously in the manufacturing industries, construction industries, and service industries of Korea. Fatal accidents have occurred most frequently in the construction industries of Korea. Especially, the trend analysis of the accident rate and fatal accident rate is very important in order to prevent industrial accidents in the construction industries systematically. This paper considers forecasting of the accident rate and fatal accident rate with static and dynamic time series analysis methods in the construction industries. Therefore, this paper describes the optimal accident rate and fatal accident rate by minimization of the sum of square errors (SSE) among regression analysis method (RAM), exponential smoothing method (ESM), double exponential smoothing method (DESM), auto-regressive integrated moving average (ARIMA) model, proposed analytic function model (PAFM), and kalman filtering model (KFM) with existing accident data in construction industries. In this paper, microsoft foundation class (MFC) soft of Visual Studio 2008 was used to predict the accident rate and fatal accident rate. Zero Accident Program developed in this paper is defined as the predicted accident rate and fatal accident rate, the zero accident target time, and the zero accident time based on the achievement probability calculated rationally and practically. The minimum value for minimizing SSE in the construction industries was found in 0.1666 and 1.4579 in the accident rate and fatal accident rate, respectively. Accordingly, RAM and ARIMA model are ideally applied in the accident rate and fatal accident rate, respectively. Finally, the trend analysis of this paper provides decisive information in order to prevent industrial accidents in construction industries very systematically.

In construction work, safety accidents often occur in combination with unstable physical and human conditions during preparation and execution of work. In Korea, the accident rate is higher to that of any country in the world. Therefore, it is necessary to take measures by fundamental prescription. In this paper, in the case of construction safety management, we tried to find a reasonable alternative through a questionnaire survey to apply to subcontracting and small-scale construction. In conclusion, workers who are well aware of the task could be able to reduce the accident rate by deploying them as safety management officers after receiving the training.

This paper provides a basic organizational commitment research for the study was conducted academic research, especially acidic improvements in the construction industry for a job commitment on organizational commitment. In this paper, first results are derived for literature to study and improve productivity and derive a major cause of job involvement of construction companies based on it for critical that the rationale organization.

Full embroidery industrial accidents in recent years has shown a declining trend. But disaster embroidery of domestic construction industry were more than 20,000 deaths per year is about 500 people. The government has introduced a construction site often changing the recruitment of new construction based on health and safety as an alternative to road safety education training yisuje of construction workers, daily work periods short. Certificate of Basic OSH Training in Constructions had also been evaluated as successful by reducing the accident rate problem. It is conducted in private educational institutions has occurred on the friction between workers and employers and training costs are difficult to approach workers in the education standards for such facilities due to the superintendent. Educational institutions are institutions that have been caused by excessive competition lowered levels of education. There is also a lack of evaluation that the training is limited to the basic safety knowledge. These details are brought formal safety education purposes only and is introducing the results of other self jyeotgi difficult to reap the proceeds to good effect. In this study, we propose a plan for improving operational problems and enemy status based on research data presented after the Certificate of Basic OSH Training in Construction.

The scope of this study is the construction conformity assessment system according to the new paradigm of construction management To minimize the differences between domestic and international state, construction Conformity Assessment is subdivided into system certification and product certification. For the former, WASCON(Worldwide Assessment System of Construction Quality Maturity Stage) is applied. For the latter, AQUA(Advanced Quality Assessment System) was developed and adopted to model project for demonstration. Both systems are designed to enable quantified rating, integrated into PQCS(Project Quality Certification), which is an advanced project quality certification system. The construction work observing PQCS will gain quality score on its own quality certificate(Quality mark on construction itself or facilities is also available, if needed or preferred by customers). This Quality Rating System will inspire and encourage any related parties. PQCS score would let supplier/constructor recognize how much themselves are operating effectively and efficiently, offering them the opportunity of redeeming their weaknesses.