The determining of the load capacity for any structure, is in these days of paramount importance, none more so, than for those involving concrete. Major building structures such as bridges rely on tests involving prestressed concrete beam load test to failure. Introduction For enabling concrete to support a greater load capacity, or to span a greater distance…
Air entrained concrete A major advance in concrete technology in recent years is the introduction of tiny disconnected air bubbles into concrete called air entrainment. Air entrained concrete results from using either an air-entraining cement or an air-entraining admixture during mixing. Adding entrained air to concrete provides important benefits in both plastic and hardened concrete,…
Joining individual and assembled elements together is the bread and butter of structural engineering. A crucial part in many of these joined elements are fasteners: bolts, screws, rivets, welds, clamps, nails, and even adhesives can play a vital role. Ignorance Is Bliss Keeping load bearing assemblies together is the role of structural fasteners. Using the…
As an example the flow under a structure will be considered, see Figure10.2. In this case a sluice has been constructed into the soil. It is assumed that the water level on the left side of the sluice is a distance H higher than the water on the right side. At a certain depth the…
What do pasta, muscles, and a roof truss have in common? They all can be strained, although only one experiences structural engineering strain. A continuing series of articles on fundamental engineering analyses. We’ll Cross That Bridge…. Previous articles introduced the concept of stress as a fundamental engineering calculation. Another useful analysis determines the deformation, or…
The study of the chemical and physical properties of soil helps in managing resources while working with a particular kind of soil. Not all soils have similar properties, and working with them requires understanding soil properties in detail. Understanding the chemical and physical properties of soil means understanding the soil behavior under different temperature and pressure conditions….
Without curing, concrete is just like brittle mixture of various construction ingredients that can break down under excessive loads or even under normal loading conditions. Concrete under water curing, curing concrete below freezing and extremely hot temperatures needs special attention. Curing means hardening of concrete mix under controlled conditions. Temperature and moisture content of concrete…
Disaster is a natural calamity which may be in the form of • Drought • Flood • Cyclone • Forest fire • Landslide • Earthquake • Volcanic eruption etc. DISASTER PREVENTION STRATEGY Construction of dams can prevent flood havoc. Identify the rivers and construct dams to regulate flow of water during heavy rainfalls. Spreading the…
Various techniques are available for creating flooring using wood and wood-like materials. This article will help you to understand the difference in wood flooring vs engineered wood vs wood. The wood and wood like floorings (or wood based flooring) are used in many buildings instead of the marble or carpet floorings. In order to explain what…
To provide a direct comparison between the Robertson (1990) profiling chart and the Eslami-Fellenius chart, three short series of CPTU data were compiled from sites with very different geologic origin where the soil profiles had been established independently of the CPTU. The borehole information provides soil description and water content of recovered samples. For one…