in the current engineering practices, buildings are commonly designed for an effective lifetime of 50 years. this lifetime can increase the cost of buildings with short lifetimes and can reduce the safety level of buildings with large lifetimes. in this paper, a “service-life factor” has been defined. applying this factor into the nominal values of live, earthquake, wind, and snow loads, the ef...

Abstract Due to the need for structures with refined properties bear against different loading conditions, recently, carbon nanotubes (CNTs) have been used widely reinforce them. The extremely high stiffness of CNTs makes them significant as one best reinforcements improve mechanical behaviors structures. This work focuses on microbeam buckling response an initial curvature that includes three ...

In the present study, abrasive wear tests were conducted to investigate effect of hygrothermal ageing on friction and resistance glass/Polytetrafluoroethylene (PTFE) composites. Non-hybrid hybrid composites manufactured with PTFE coated two-dimensional plain weave (2D), three-dimensional knitted (3D), satin (SW) fabrics a steel metal mesh (MM). Hybrid glass MM by placing it top bottom laminate....

• Hygrothermal material properties of bio-based insulators were determined. Bio-based materials provide high thermal resistance and water vapour permeability. Properties insulations are comparable with conventional materials. performance buildings is one key element to the sustainable design, health, comfort indoor environment. Building sustainability depends on all associated lifespan stages, ...

Abstract Mould may grow in wood frame wall assemblies when subjected to excessive moisture load over prolonged periods of time. To permit estimating the risk wood-frame assemblies, one approach is use hygrothermal simulations. This process requires access relevant climate data and as well, knowledge experience regarding simulation tools. As it not be practical undertake such an analysis for eac...

The study investigates through hygrothermal modelling the effect of different boundary conditions and varying measured vapour diffusion resistivity values on performance five pliable membranes. Previously, this research quantified variable water properties building membranes were assessed under humidity using gravimetric wet dry cup test method. better represent experienced by materials in enve...