To promote the development of timber–steel composite (TSC) structures, this paper proposes a TSC I-beam with an as webs, covered timber board on its upper and lower surfaces bolted together; effect varying ratio thickness to bending performance was investigated. Considering same total height beam cross-section variation height, three groups six specimens were designed fabricated carry out load ...

Expressions were presented which can be used to estimate the strengths of continuous fiber reinforced composite laminates containing pin-loaded holes. The expressions apply to laminates containing either a single pin loaded hole, a single row of pin loaded holes, or two parallel rows of pin loaded holes.

This paper presents a novel bolt-loosening detection technique using image information of bolted joints in steel bridges. Firstly, existing bolt-loosening detection techniques are reviewed and their benefits and limitations are analyzed. Secondly, a bolt-loosening detection algorithm using image processing techniques is newly proposed for bolted joints in steel bridges. It consists of 3 steps: ...

Abstract The pretensioning force in bolted joints enhances the lateral strength of connections, and causes embedment metal washers into wood. Despite significance behavior design joints, its mechanism has yet to be fully understood. In this study, a washer wood along radial direction was examined through three-dimensional nonlinear finite-element analysis (FEA). FEA results were validated by co...

BOG (Boil off Gas) compressor deals with the gas evaporated from the LNG storage tank. Its working temperature is lower than-120℃. There are two types of starting process for BOG compressor: Direct Starting and No-load Starting. During the starting process, the temperature on cylinder will change rapidly and result in additional thermal stress to some parts on the cylinder, especially to the bo...