SIMPLIFIED MODELLING OF NOVEL NON-WELDED JOINTS FOR MODULAR STEEL BUILDINGS

Prefabricated modular steel (PFMS) construction is a more efficient and safe method of constructing a high-quality building with less waste material and labour dependency than traditional steel construction. It is indeed critical to have a precise and valuable intermodular joining system that allows for efficient load transfer, safe handling, and optimal use of modular units' strength. Thus, the purpose of this study was to develop joints using tension bolts and solid tenons welded into the gusset plate (GP). These joints ensured rigid and secure connectivity in both horizontal and vertical directions for the modular units. Using the three-dimensional (3D) finite element (FE) analysis software ABAQUS, the study investigated the nonlinear lateral structural performance of the joint and two-storey modular steel building (MSB). The solid element FE models of joints were then simplified by introducing connectors and beam elements to enhance computational efficiency. Numerous parameters indicated that column tenons were important in determining the joint's structural performance. Moreover, with a standard deviation (SD) of 0.025, the developed connectors and beam element models accurately predicted the structural behaviour of the joints. As a result of their simplification, these joints demonstrated effective load distribution, seismic performance, and ductility while reducing computational time, effort, and complexity. The validity of the FE analysis was then determined by comparing the results to the thirteen joint bending tests performed in the reference.

Digital Transformation of Supply Chains With Mobile IoT

Today, mobile IoT (m-IoT) connectivity is one of the significant enablers of Supply Chain 4.0 with its capabilities of secure connectivity over large areas at low cost and with low device complexity. The purpose of this chapter is to shed light on the evolution of m-IoT paradigm within context of supply chain management. The potential of LTE, 4G, and future 5G technologies and the impact of m-IoT enabling technologies, LTE-M, and NB-IoT on digital transformation of SCM are investigated through commercial deployments; current status and future directions are discussed in terms of supply chain efficiency and supply chain visibility. Accordingly, this chapter first outlines the technical architecture and features of NB-IoT and LTE-M technologies and then explores how m-IoT connectivity is creating value for supply chains through commercial deployment examples. Exploration of m-IoT potential on supply chain operations will ensure new insights and opportunities for further advancement and evolution of IoT paradigm as a means of productivity.

Digital Transformation of Supply Chains With Mobile IoT

Today, mobile IoT (m-IoT) connectivity is one of the significant enablers of Supply Chain 4.0 with its capabilities of secure connectivity over large areas at low cost and with low device complexity. The purpose of this chapter is to shed light on the evolution of m-IoT paradigm within context of supply chain management. The potential of LTE, 4G, and future 5G technologies and the impact of m-IoT enabling technologies, LTE-M, and NB-IoT on digital transformation of SCM are investigated through commercial deployments; current status and future directions are discussed in terms of supply chain efficiency and supply chain visibility. Accordingly, this chapter first outlines the technical architecture and features of NB-IoT and LTE-M technologies and then explores how m-IoT connectivity is creating value for supply chains through commercial deployment examples. Exploration of m-IoT potential on supply chain operations will ensure new insights and opportunities for further advancement and evolution of IoT paradigm as a means of productivity.

Patterns of digitalisation in machinery-building industries: evidence from Russia

Digitalisation in machinery-building is expected to enhance productivity and drive the digital transformation of other industries. The extant literature sparsely describes pathways of different sectors in digitalisation, considering the heterogeneous characteristics of firms and sectors. Emerging economies with important state participation represent a particular interest in this area of research. To this end, a multiple case study method was used to describe a set of determinants revealed from the literature on Russian technological development and innovation in manufacturing. Two different patterns were identified. The first one was typical for large leading firms with state participation, which have a global market presence and a substantial level of interoperability, currently turning into a service business model. Private firms that follow the second pattern focus on physical and digital infrastructure upgrading targeted at particular issues to secure connectivity across departments. The state participation does not have a decisive role in digitalisation decisions; however, it affects the participation of companies in national digital initiatives. This study is a preliminary analysis of the determinants associated with corporate digitalisation from the sectoral perspective. Since both national and corporate strategies are ongoing, it seems premature to make generalised conclusions. Instead, the paper provides useful insights for management and policy that refer to digital technology uptake by machinery-building industries.