De Oversteek Bridge – A Unique Tied-Arch Bridge

De Oversteek Bridge

De Oversteek Bridge – A Unique Tied-Arch Bridge Heavy traffic in the city of Nijmegen made it necessary to construct an alternative route to cross the river Waal, De Oversteek bridge is a part of a new city by-pass. Bridge was able to satisfy city request of five lane crossing with a two lane-cycle path … Read more

Structural Engineering Seminar Topics : State-of-Art

Segmental Construction Method Progressive placement

Seminar Topics on Structural Engineering: State-of-Art Find latest and state of the art topics for civil engineering Projects, Seminars, Dissertations and Presentations on Structural Engineering. CivilDigital.com brings you series of uncommon and exclusive civil engineering project topics. Selecting the right project topic has a major impact on your career. Choosing civil engineering project topic can … Read more

Failure modes in beams | Types of Failure in Reinforced Concrete Beams

Development Of Cracks in Beams

Failure Modes in beams There are two common types of failure in slender, non Prestressed flexural elements that carry the load in one direction only are Compression failure of the Compressive Chord “ductile flexural failure”:  After yielding of the reinforcement, if no redistribution of forces is possible, the deformations of the beam become important while … Read more

Significance of Delayed Ettringite Formation and Damage Mechanisms

Cracks due to delayed ettringite formation

Significance of Delayed Ettringite Formation and Damage Mechanisms Ettringite is formed in hydrated Portland cement system as a result of the reaction of calcium aluminate with calcium sulfate, both present in Portland cement. In the cement system, the presence of ettringite depends on the ratio of calcium sulfate to tri-calcium aluminate (C3A); when this ratio … Read more

Modern Technologies on Foundation Retrofitting

foundation problem

Foundation Retrofitting The foundation of any type of structure is the only element of a building unexposed to weather conditions. There is no reason why they have to be taken for granted as this fact makes it almost impossible for foundation repair(foundation retrofitting) to take place. And if in case they would be, it requires … Read more

Shotcrete – Concrete Repairing Techniques

Shotcrete in Concrete Repair Shotcrete is defined as “mortar or concrete pneumatically projected at high speed onto a surface” (American Concrete Institute, 1990). There are two basic types of shotcrete—dry mix and wet mix. In dry mix shotcrete, the dry cement, sand, and coarse aggregate, if used, are premixed with only sufficient water to reduce dusting. This mixture is … Read more

Segmental Construction Of Bridge Seminar

Segmental bridge construction

Segmental Construction Of Bridge – Seminar (with ppt) Submitted by : Gaurav Jhalani Introduction of Bridge A bridge is a structure built to across a obstacles such as a body of water, valley, or road, for the purpose of providing passage over the obstacle. Designs of bridges depending on the function of the bridge, length … Read more

Composite Slabs & Columns – Advantages and Basic Concepts

Profiled steel sheeting

Composite Slabs & Columns – Advantages and Basic Concepts Read Introduction on Composite Structures Here Composite slabs  Consist of profiled steel decking with an in-situ reinforced concrete topping. The decking(profiled steel sheeting) not only acts as permanent formwork to the concrete, but also provides sufficient shear bond with the concrete so that, when the concrete … Read more

Temporary Supporting Structures

Temporary Supporting Structures

Temporary Supporting Structures Classifications Formworks/shuttering Scaffolding Shoring Underpinning Form work-requirements Strength Rigidity Less leakage True to size Smooth surface Easy removal Supports Economy in formwork Forms of regular sizes and shapes Allow reuse Design structural components to allow use of commercially available forms Clean and oil forms after use Pre-fabricate the forms on the ground … Read more