Redistribution of internal forces in composite concrete girders made continuous vs. time

Foam Concrete Precast Elements in Composite Concrete-GFRP Plate Girders

This paper is focused on using foam concrete as structural element in polymer-concrete composite plate girders. Trial mixes of foam concrete and different proportions of foam agent were considered to obtain the suitable mix that can be used as structural element in composite girders system. Details of the experimental investigations on foam concrete precast slabs and polymer-concrete composite ...

Strengthening of Scaled Steel-Concrete Composite Girders and Steel Monopole Towers with CFRP

Cost-effective rehabilitation and/or strengthening of steel structures currently demanded by the telecommunications industry and transportation departments. Rehabilitation is often required due to crosssection losses resulting from corrosion damage and strengthening may be required due to changes in the use of a structure. Current strengthening techniques, have several disadvantages including t...

Performance of Self-consolidating Concrete in Prestressed Girders

Continuous and discrete homotopy operators: A theoretical approach made concrete

Using standard calculus, explicit formulas for the one-dimensional continuous and discrete homotopy operators are derived. It is shown that these formulas are equivalent to those in terms of Euler operators obtained from the variational complex. The continuous homotopy operator automates integration by parts on the jet space. Its discrete analogue can be used in applications where summation by ...

What do internal capital markets do ? Redistribution vs . incentives ∗ Axel

In this paper we explain the apparent ”diversification discount” of conglomerates without assuming inefficient-cross subsidisation through internal capital markets. Instead we assume that an internal capital market efficiently redistributes scare resources across a conglomerate’s divisions between successive production periods. The need for redistribution arises from the fact that resources may...