Tutor Perini Ordered to Pay $175M Over Philadelphia Hotel Project

Responsibility for floor slab deflection problems was a key issue on the 51-story tower project.

On Tutor Perini Project, Floor Slab Deflection Problem Apparently Had No Clear Owner

Who should have figured out floor slab cambering?

FGIA Updates Aerosol Foam Standard for Window Installation

The Fenestration and Glazing Industry Alliance (FGIA) has updated a specification describing the use of aerosol foams developed specifically for application with fenestration products. AAMA 812-25, “Voluntary Practice for Assessment of Frame Deflection When Using Propellant Expanding Foam Sealants for Air-Sealing Rough Openings of Fenestration Installations,” an FGIA document, is now available for purchase in the […] <p>The post FGIA Updates Aerosol Foam Standard for Window Installation first appeared on CCR-Mag.com.</p>

Factoring deflection and movement into fire stopping for accurate early specification

John Gardner, national specification manager at FSi Promat, looks at how deflection and movement can affect fire stopping - and how to address it. The post Factoring deflection and movement into fire stopping for accurate early specification appeared first on Planning, Building & Construction Today.

New from CEMCO®—Super Seal-X fire-rated deflection bead

Super Seal-X is a permanently flexible fire-rated drywall accessory that takes the place of fire sealant and is ideal for vertical wall joints into exterior walls and dissimilar materials. The post New from CEMCO®—Super Seal-X fire-rated deflection bead appeared first on Construction Specifier.

Belinda Carr - How to Stop Thermal Bridging with T Studs

Wood is a conductor or a thermal bridge. It allows heat to flow easily from the exterior to the interior or vice versa. To solve this problem, a company in the States, called US Engineered Wood, has invented the T-Stud, a framing member that improves the energy efficiency of buildings by acting like a thermal break instead of a thermal bridge.

Andun Engineering Consultants - Demolition of Prestressed Structures - Post Tensioned Demolition CPD Webinar 02112020

This webinar provides an overview of the design methodology considerations when demolishing a prestressed structure. This includes looking at the hazards posed by post tensioned structures and the demolition methodologies to mitigate them. Case Studies: Regent Street, Old Slade Lane, Teapot Lane, Hunterscombe

Practical Engineering - What is Prestressed Concrete, 27112018

Prestressing reinforcement doesn't necessarily make concrete stronger. But it does increase the serviceability of concrete members by reducing the amount of deflection under load This video explains the two most common types of prestressed concrete: pre-tensioned and post-tensioned Prestressed concrete is used in all kinds of structures from bridges to buildings to silos & tanks. It’s a great way to minimize cracking and take fuller advantage of the incredible strength of reinforced concrete

CABE - Structural-Safety: Learning Lessons from Structural Failures, 13112019

This presentation from Structural-Safety discusses the importance of learning lessons from structural failures and why these lessons must be re-learned by each generation to prevent similar occurrences happening again. Examples of major safety incidents, such as the collapse of a steel frame building in London and the collapse of a masonry wall at a school in Edinburgh are discussed

The Efficient Engineer - Understanding the Deflection of Beams

In this video we take a look at five methods that can be used to predict how a beam will deform when loads are applied to it. These are the double integration method, Macaulay's method, the principle of superposition, the moment-area method, and Castigliano's theorem, which is based on strain energy.