Blog

Movable Scaffolding Systems (1-day course)

Movable Scaffolding Systems (1-day course)

This 8-hour course (on-site, on-demand) explores the use of movable scaffolding systems (MSS) for span-by-span and balanced cantilever construction of prestressed-concrete bridges.
Nose-Deck Interaction in Launched Bridges

Nose-Deck Interaction in Launched Bridges

Download this milestone publication of Dr. Rosignoli (1998, ASCE Journal of Bridge Engineering) on the pre-sizing and design optimization of incrementally launched bridges.
Precast Segmental Bridges (1-day course)

Precast Segmental Bridges (1-day course)

This 8-hour course (on-site, on-demand) provides exhaustive coverage of span-by-span and balanced cantilever construction of precast segmental and macro-segmental bridges.
Prestressed Composite Box Girders with Steel Corrugated-Plate Webs

Prestressed Composite Box Girders with Steel Corrugated-Plate Webs

The combined use of external post-tensioning and steel corrugated-plate webs leads to light, efficient bridge superstructures that are less expensive and simple to maintain.
Robustness and Stability of Self-Launching Gantries and MSS

Robustness and Stability of Self-Launching Gantries and MSS

Download this publication of Dr. Rosignoli (2007, IABSE Structural Engineering International) on the design review of bridge construction machines.
Segmental Precasting vs. In-Place Casting with MSS

Segmental Precasting vs. In-Place Casting with MSS

Explore pros and cons of the two most popular methods for span-by-span construction of prestressed-concrete bridges.
Self-Launching Erection Machines for Precast Concrete Bridges

Self-Launching Erection Machines for Precast Concrete Bridges

Download this long publication of Dr. Rosignoli (2010, PCI Journal) on the loads, kinematics, performance, productivity and structure-equipment interaction of self-launching gantries.
Short-Line Match Casting of Precast Segmental Bridges

Short-Line Match Casting of Precast Segmental Bridges

Short-line match-casting operations have a critical role in assuring geometry control, quality and durability of precast segmental bridges and in avoiding premature joint failure.
Side-Shifting Gantries for Balanced Cantilever Bridges

Side-Shifting Gantries for Balanced Cantilever Bridges

Simultaneous erection of adjacent decks with side-shifting self-launching gantries is lowering the entry threshold of balanced cantilever construction to 50-55m constant-depth spans.
Simulation Engines and Launched Bridges

Simulation Engines and Launched Bridges

Computer simulations analyze construction processes, process performance under different conditions, functional relations, process sensitivity, bottlenecks, and process optimization.
Span-By-Span Casting with Movable Scaffolding Systems (MSS)

Span-By-Span Casting with Movable Scaffolding Systems (MSS)

Span-by-span casting with MSS is a cost-effective alternative to precast-segmental construction in medium-length prestressed-concrete bridges.
Span-By-Span Construction of Precast Segmental Bridges

Span-By-Span Construction of Precast Segmental Bridges

Span-by-span construction with self-launching gantries is the most common, and often the most cost-effective, construction method for precast segmental bridges.