this study simulates the temperature field and temperature stress of concrete face slabs, considering the cold waves that occur during construction as well as the contact friction between the face slabs and the cushion layer. the results show that when a cold wave occurs during construction, the surface and center temperature of the face slabs continually drop with the outside air temperature, ...

The purpose of this investigation was to study the intra-oral effects of multiple daily applications of NaF lozenges upon acid-softened enamel. Bovine enamel slabs were softened with 0.1 mol/L lactate buffer at pH 4.0 for 14 hrs and subsequently mounted in a mandibular removable Hawley appliance. Control slabs were worn for seven days by eight adult male subjects who brushed their natural denti...

Abstract In cross-laminated timber (CLT) buildings, in order to reduce the disturbing transmission of sound over flanking parts, special insulation layers are used between CLT walls and slabs, together with insulated angle-bracket connections. However, influence such connections on seismic resistance structures has not yet been studied. this paper, experimental investigation panels installed be...

Earthquakes and seismic surveys provide estimates of depths of subducting slabs, but only at scattered locations. To construct a useful three dimensional model of slab geometry we must interpolate slab depths at uniformly sampled locations on the earth’s surface, and the interpolation method should account for the curvature of that surface. In addition to estimates of depths from earthquake loc...

Multi-objective optimisation of concrete floors for economic and environmental performance is critical in the present context since building construction sector responsible a rising share global economy greenhouse gas emissions. This study explores how designs with optimum cost embodied carbon are governed by selection floor system column spacing. Discrete were generated parametrically varying ...

The objective of this study was to develop prediction mathematical equations to compute reinforcement steel quantity in traditional residential buildings based on 158 sets of data collected in the West Bank in Palestine. The records related to the quantities were collected from consultancy firms that provide reinforced concrete design services. The data were collected for residential buildings ...

Structural pounding between adjoining multistory buildings with different total heights and story levels has been repeatedly identified as a frequent cause of severe damage during seismic excitations. This phenomenon is very intense when upper floor slabs short hit the columns taller more flexible structures within their deformable length. On other hand, it well accepted that infill masonry pan...

The evaluation of structures is imperative as these age and exposed to different external internal stresses resistances. strength any structure inclusive its structural components, can be determined from health safety. This study aimed evaluate the safety Flores Hall Valencia through use Non-Destructive Test specifically Rebound Hammer consequently propose Preventive Maintenance Management Plan...

The design of the flow method construction a multi-story residential building with stone walls and prefabricated reinforced concrete floor structures has its own features, namely, presence mechanized non-mechanized (manual) processes, which implies significant difference in number performers when coordinating flows among themselves. Taking into account importance ensuring rhythmic execution for...

Walls of corridors and chambers in the Neolithic dolmens of Portugal and Spain were constructed using megalithic slabs or masonry. When constructed with slabs, the slabs were arranged using two very different construction systems, based either on placement of an orthostat or on imbrication of the slabs. Although generally dolmens are described with orthostats, on the Iberian Peninsula are most ...