How to use photovoltaic reinforced ribs

How to design adaptive rib-stiffened concrete slabs?

A new method to design adaptive rib-stiffened concrete slabs is presented in this paper. A rib layout optimization process employing heuristics based on the principal stress directions has been formulated. A search method based on a greedy algorithm was proposed to solve the combinatorial problem for rib layout optimization.

How rib design improve buckling resistance?

After form-finding of the the initial structural shape, topology optimization was conducted to develop the reinforcing rib pattern to increase its buckling resistance. The use of optimized rib layouts greatly increased the rigidity of the shell, which was confirmed by finite element simulations. 1. Introduction

How much energy does a rib-stiffened slab save?

Energy savings of 32%, 45%, and 56% were achieved with respect to the passive voided slab, passive rib-stiffened slab, and the passive flat slab, respectively. The equivalent carbon (kgCO 2 -equivalent) was computed by assuming that the slab is built in southwest Germany.

How do ribs & reinforcement work?

Adding ribs and reinforcement to align along specific paths, i.e., principal stress directions, is a well-known strategy inspired by the Michell-like optimum structures.

What are the steps in rib fabrication process?

The fabrication process roughly consists of the following steps: (a) 3D Printing of formwork for the ribs, (b) inserting reinforcement into the rib formwork, (c) 3D printing a cap to close the rib formwork, (d) casting the ribs, (e) casting the solid part of the slab.

Do adaptive rib-stiffened slabs resist external loads?

Although the adaptive rib-stiffened slab in this study is subjected to biaxial bending, the ribs resist external loads predominantly through uniaxial bending because the configuration is obtained through a heuristic based on principal stress directions.