Infrastructure Health in Civil Engineering Volume 2: Applications and Management

Continually increasing demands on infrastructures mean that maintenance and renewal require timely, appropriate action that maximizes benefits while minimizing cost. To be as well informed as possible, decision-makers must have an optimal understanding of an infrastructure’s condition—what it is now, and what it is expected to be in the future.
Written by two highly respected engineers, the second volume, Infrastructure Health in Civil Engineering: Applications and Management, integrates the decision making concept into theoretical and practical issues.
It covers:
- State-of-the-art practice and future directions
- Use of probability and statistics in areas including structural modeling
- Specific practical applications, including retrofitting and rehabilitation in response to earthquake damage, corrosion, fatigue, and bridge security
- Use of IHCE for management and maintenance of different types of structures using pre-stressed and reinforced concrete, and fiber-reinforced polymers (FRPs)
- Numerous practical case studies, as well as coverage of the latest techniques in the use of sensors for damage detection and load testing
Built to correspond to the ideas presented in its companion volume, Theory and Components, this is an invaluable guide to optimized, cost-saving methods that will help readers meet safety specifications for new projects, as well as the aging infrastructure at great risk of failure.

Infrastructure Health in Civil Engineering Volume 1: Theory and Components

Continually increasing demands on infrastructures mean that maintenance and renewal require timely, appropriate action that maximizes benefits while minimizing cost. To be as well informed as possible, decision-makers must have an optimal understanding of an infrastructure’s condition—what it is now, and what it is expected to be in the future.
Written by two highly respected engineers, the first volume, Infrastructure Health in Civil Engineering: Theory and Components, integrates the decision making concept into theoretical and practical issues.
It includes:
- An overview of the infrastructure health in civil engineering (IHCE) and associated theories
- In-depth description of the four components of SHCE: measurements, structural identification, damage identification, and decision making
- Discussion of how IHCE and asset management are applied
- An exploration of infrastructure health management
Built to correspond to the ideas presented in its companion volume, Applications and Management, this is an invaluable guide to optimized, cost-saving methods that will help readers meet safety specifications for new projects, as well as aging infrastructures at high risk for failure.

ETABS MODELING ACCORDING TO EUROCODES

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Seismic performance of RC frames with concentric internal steel bracing

Analysis of beams on nonlinear winkler foundation

Enhancing the Capacity of Concrete Bridges

Enhancing the capacity of concrete bridges, published by the Concrete Bridge Development Group, covers reinforced and prestressed concrete highway and railway bridges and masonry arch bridges. The different types of strengthening available to industry are comprehensively covered. In many cases repair will be required before strengthening can be undertaken, but this report does not cover repair as such and reference must be made to other documents that discuss repairs in more detail. The main emphasis is on the contractor and site operations so that it can be used as a working document. The report covers buildability, contractual issues, traffic management and delay, safety, etc, which are often a major consideration in the choice of strengthening options. Design aspects are only covered briefly, but designers and owners will find a comprehensive list of strengthening methods that may provide more scope for solving their particular problems.

The total or partial replacement of a bridge is probably the ultimate solution, but it is also the most costly. The benefits and cost of various strengthening options are presented and contrasted with those of replacement. The strengthening of concrete structures was a relatively difficult operation until the developments of recent years, which have opened up a range of new possibilities. In any structure the quantity of prestressing steel and reinforcement is designed to meet the original loads to be applied, and until recently there were few options or strategies for changing that proportion. However, the introduction of advanced composite materials has opened up new strategies where the advantages of these materials can be exploited to the full.

The range of intervention using the strengthening options can extend from the minimal (do nothing) to complete replacement of the structure. Some of the early options contained in the report can be described more as gaining strength from the existing structure rather than as pure strengthening. At the other end of the scale methods are described which involve major reconstruction of parts of the bridge, where it is difficult to decide at what point strengthening stops and reconstruction begins. In many cases it is economic to save as much of the structure as possible, but more often the overriding factor is how the existing structure can be given additional strength to carry modern-day loads with minimal disruption to the traffic carried over or under the bridge.