A sagging floor in a basement or crawl space usually triggers fears of a costly foundation repair. In many cases the fix is far simpler: a lally column, a steel post that supports an unsupported joist or beam and transfers its load to a footing below. Contractors have used these columns for decades because they […]
Steel is one of the most efficient structural materials in construction, but it is also one of the worst insulators. A steel beam carries heat and cold in and out of a building almost effortlessly, a problem known as thermal bridging. The heat that leaks through steel framing wastes energy and can trigger condensation, corrosion,
A retaining wall holds back soil on a slope and turns unusable grade into flat, walkable ground. The wall resists two forces at once: the weight of the soil behind it and the pressure of water trapped in that soil. The engineering measures to prevent retaining wall distress and failures start with the same site
Remodeling plans often start with the same tempting idea: knock down a wall to open up the floor plan. Before anyone picks up a sledgehammer, the wall itself decides whether the plan is safe. A load-bearing wall supports the floors, the roof, and any walls above it, then transfers that weight down through the framing
The word damping appears in two very different places. In plant nurseries, damping-off disease kills seedlings when soil-borne fungi rot stems at the soil line, a problem gardeners fight with airflow, dry soil, and careful watering. In structural engineering, damping describes how a building sheds the energy of wind, traffic, and earthquakes instead of letting
Visitors to a well-tended garden often ask how the owner keeps up with all the work. Engineers hear a similar question about structures: how does a bridge, a warehouse floor, or a precast beam keep carrying load year after year without trouble? Nobody manages that by guessing. Every member is sized against a known relationship
Every wall, pipe, and beam in a building eventually transfers its weight to something below it, and that chain of support decides whether a structure settles gracefully or fails early. Contractors who understand the full range of support systems can price jobs accurately, pass inspections, and avoid expensive callbacks. The subject starts small with pipe
Mass timber is moving into the high-rise market. Updates to U.S. building codes now permit taller mass timber structures, and developers are responding with projects that reach ten, twelve, and even eighteen stories in some jurisdictions. That growth raises a direct engineering question: how do these buildings perform in a major earthquake? For existing structures,
Hurricane ties are the small metal connectors that anchor roof rafters and trusses to the wall framing below them. In a high-wind event, wind pushes up on the roof and these straps keep it from peeling away from the walls. Engineers rate them for uplift and lateral loads, and building codes in hurricane and seismic
For decades, framing connections meant nails, and heavy connections meant bolts. Structural screws have carved out a middle ground: fasteners engineered to carry real loads, drive in fast, and hold without pre-drilling. They show up in trusses, rafters, multi-ply beams, deck posts, and railings, and they have made their way into the prescriptive rules of
