EDITORIAL

The first issue of the fifth volume of the IBRACON Structures and Materials Journal is now released (Volume 5, Number 1, February 2012). The seven articles published in this issue cover relevant topics on concrete structures and materials. The first two address steel fiber reinforced concrete pipes: part 1 discusses technological analysis of the mechanical behavior and part 2 presents a numerical model to simulate the crushing test. Simplified damage models applied in the numerical analysis of reinforced concrete structures are presented in the third article. The fourth one reports studies on cement-base bearing pads for connections in precast concrete, focusing on the surface roughness. The influence of low temperature on the evolution of concrete strength is discussed in the fifth article. The sixth addresses reliability of buildings in service limit state for maximum horizontal displacements. The closing article presents a discussion on a variable limit for the instability parameter of wall-frame or core-frame bracing structures.

We appreciate the interest and dedication of authors and reviewers, responsible for the consolidation of our journal. Thanks to them we are opening the fifth volume without interruptions or delays.

Américo Campos Filho, José Luiz Antunes de Oliveira e Sousa, Luiz Carlos Pinto da Silva Filho and Romildo Dias Toledo Filho

Editors

Publication Dates

• Publication in this collection
  03 July 2013
• Date of issue
  Feb 2012