Purpose: This paper aimed to examine the role of knowledge sharing among member enterprises between collaborative innovation activities and innovation performance and between building information modeling (BIM) application and innovation performance in the construction supply chain.Design/methodology/approach: The structural equation model was used in this study. First, the hypothesis of the relationship between collaborative innovation activities, BIM application, knowledge sharing and innovation performance in the construction supply chain was proposed based on experience; then, the research data were collected by investigation; finally, this hypothesis was tested through data analysis.Findings: (1) Collaborative innovation activities in the construction supply chain had a positive impact on explicit knowledge sharing, tacit knowledge sharing and innovation performance. (2) BIM application had a positive impact on explicit knowledge sharing and innovation performance, while it had no significant impact on tacit knowledge sharing. (3) Explicit knowledge sharing had no positive effect on innovation performance, while tacit knowledge sharing had positive effect on organizational performance. (4) Tacit knowledge sharing produced partial mediating effect between collaborative innovation activities, BIM application and innovation performance, while explicit knowledge sharing produced complete mediating effect between BIM application and tacit knowledge sharing.Originality/value: A relationship model among collaborative innovation activities, BIM application, explicit and tacit knowledge sharing and innovation performance in the construction supply chain was proposed, and the rationality of the model was verified by empirical analysis. Discovering the relationships between these factors can be not only conducive to mastering the effect of explicit and tacit knowledge sharing in the collaborative innovation process of construction supply chain, but also play a guiding role for the function development of BIM.

Innovation capability is an important factor to strengthen the market competitiveness of enterprises of the construction supply chain. This study aims to explore the impact of collaborative innovation activities and building information modeling (BIM) application on innovation capability in the construction supply chain and the role of explicit and tacit knowledge sharing in their relationship. The study quantitatively evaluates the relationships among collaborative innovation activities, BIM application, explicit and tacit knowledge sharing, and innovation capability using structural equation modeling with survey data from 210 construction enterprises. The results show that collaborative innovation activities did not directly affect innovation capability but did so indirectly via tacit knowledge sharing. BIM application had a positive impact on explicit knowledge sharing and innovation capability and had no significant impact on tacit knowledge sharing. Tacit knowledge sharing played mediating role between BIM application and innovation capability, and explicit knowledge sharing played mediating role between BIM application and tacit knowledge sharing. This study provides a theoretical basis for the research of innovation management from the perspective of knowledge sharing. Moreover, this study is conducive to improving the implementation strategy of BIM application and collaborative innovation activities.

Purpose: Knowledge sharing is an important way to improve the knowledge system of industrial construction, and the supervision mechanism is an important way to improve the efficiency of knowledge sharing. However, some research works and practices indicate that the effects of applying the supervision mechanism are not obvious. Therefore, the purpose of this paper is to propose an incentive method of knowledge sharing based on the supervision mechanism for promoting knowledge sharing among member enterprises in the industrial construction supply chain. Design/methodology/approach: A basic incentive model and an optimization model of knowledge sharing in the industrial construction supply chain based on the supervision mechanism were developed via the principal–agent theory. Weighted coefficients of explicit and implicit knowledge sharing were introduced into the basic model, while the supervision reward was added into the basic model of the optimization model. The effect of these two models was compared and analyzed via numerical simulation. Findings: The optimal incentive coefficient and effort level of knowledge sharing can be obtained by solving the two aforementioned models. The results of the comparison between the two models indicate that the introduction of a supervisory reward improved the effort level and expected earnings produced by knowledge sharing, but reduced the confirmed equal earnings of member enterprises in the industrial construction supply chain. Research limitations/implications: Mutual transformation between tacit and explicit knowledge was not considered, and supervisory costs were also not considered, in the estimation of the output of knowledge sharing. Practical implications: The new models proposed by this study provide theoretical guidance for the design of knowledge sharing incentive measures in the industrial construction supply chain based on the supervision mechanism. The findings suggest that member enterprises should pay attention to the costs of knowledge sharing, in order to obtain more benefits. Originality/value: This study introduced the weight coefficients of explicit and implicit knowledge sharing into a previous incentive model, proposed an incentive optimization model of knowledge sharing in the industrial construction supply chain based on a supervisory mechanism, and revealed the change rules of related variables that affect the model with the change in weight coefficients. The findings verify the effectiveness of introducing supervisory reward measures and extend the range of theoretical application.

Relational capital and organizational performance were important factors for achieving sustainable development of the supply chain, and knowledge sharing could create and maintain sustainable competitive advantages of the supply chain. This study examined the comprehensive relationship among relational capital, explicit and tacit knowledge sharing, and organizational performance and the mediating roles of explicit and tacit knowledge sharing between relational capital and organizational performance in the supply chain by using data collected from a questionnaire survey. SPSS, AMOS, and a structural equation model were used to analysis these data and the aforementioned relationships. The results confirmed that relational capital had a positive impact on explicit and tacit knowledge sharing, there was no relation to organizational performance, and explicit and tacit knowledge sharing played mediating roles between relational capital and organizational performance in the supply chain. The research results could provide theoretical guidance for managers to formulate sustainable development strategies that maintain good relationships and economic benefits of enterprises in the supply chain.

Falling from height (FFH) is a major safety accident in the architectural/engineering/construction industry and should be prevented as early as possible. Although the current building information modeling (BIM)–based FFH identification methods can locate the FFH hazards. they have various limitations including additional modeling workload, high computational intensiveness, and unreliable performance. In this research, we propose a novel BIM-based method that uses voxels to detect FFH hazards. The result of the validation test shows that the method can generate a more accurate and informative output within less elapsed time than the traditional geometry-based method. The primary contribution of the research lies in that by introducing voxels, the proposed method not only can detect where the FFH hazards are but also can tell if they can be accessed, thus increasing the accuracy of the FFH hazard identification output. Therefore, this method is significant for the early detection and elimination of the potential FFH hazards in building information models.

In order to improve the quality of integrated pipe network design, reduced the illogical arrange and conflict in the blueprint of the integrated pipe network, and provided a zero conflict blueprint for pipe network construction. Based on the 3D information technologies, building aided design module of the metro station integrated pipe network aided construction and management system. Through the parameterized modeling technology, 2D information of the metro station transformed to 3D information model, realized the functions of property management, finding and modify conflict for 3D information modeling. Finally, the system was applied in Ningbo Metro Line 2, solved the problem of conflict in design, provided a collaborative design system for Design Institute.