Aslan 200 Design

HB Home / Aslan FRP Home / Aslan 200 CFRP

Codes & Standards

Design Examples

ACI committee 440 is the most authoritative and prolific consensus standards body involved in the publication of design guidelines for the use of FRP bars.
Hughes Brothers has been an active participant in 440 committee activities since 1994. Committee 440 documents are based on research performed world-wide.

For structural strengthening using the "near surface mount" or NSM method, design guidance is provided in the ACI 440.2R-08 "Guide for the Design an Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures".
The NSM method is considered an "externally bonded" strengthening method as the bars are embedded in the concrete cover of existing structural members.

For new construction, design with Aslan 200 CFRP bars is dictated by ACI 440.1R-06, "Guide for the Design and Construction of Structural Concrete Reinforced with FRP Bars".

This third iteration document, can be purchased from the ACI International bookstore (linked by this text) $70.50 for non-members and $43.00 for ACI members. This document and all other ACI 440 publications are included in the "Manual of Concrete Practice" which many engineering firms obtain.

Material properties of FRP bars are validated with a complete set of test methods from ACI. Document 440.3R-04 "Guide Test Methods for Fiber Reinforced Polymers for Reinforcing or Strengthening Concrete Structures".

ASTM committee D30 is transitioning the 440 test methods to individual ASTM test methods such as ASTM D7205 "Tensile Properties of Fiber Reinforced Polymer Matrix Composite Bars".

In 2008, ACI committee 440 published "Specifications for Construction with Fiber Reinforced Polymer Reinforcing Bars" document 440.5-08. Written in mandatory language, this document offers guidance o the contractor and site inspector describing limitations and allowances for the delivery storage, handling, fabrication, bar placement, field repair and cutting and concrete placement for projects incorporating the use of Aslan FRP bars.

A companion document to the "Construction Specifications" is the 440.6-08 "Specifications for Carbon and Glass Fiber-Reinforced Polymer Bar Materials for Concrete Reinforcement". This document describes the minimum permitted constituent materials, limits thereof, minimum performance requirements for carbon and glass FRP bars.
This document essentially is the reference standard a designer would use to ensure materials procured for their design would be furnished in accordance with design performed by the 440.1R-06 guidelines. At this time, this is the closest thing to an ASTM A619 type specification for FRP bars.
All Aslan FRP bars meet or exceed the material properties of 440.6-08.

Codes & Standards

To aid the designer unfamiliar with the various FRP design guides and standards, Hughes Brothers has engineering assistance available in house. Our staff of engineers are intimately involved in the authorship of the various design guides, standard and test methods and are available to help with your specific project.
We will NOT stamp designs, rather we are here to "compliment" your efforts for a successful implementation of Aslan FRP bars.
Using industry standard consensus design methods, we will furnish you with a design proposal based on the inputs you provide us. Hughes Brothers will not perform any structural analysis and our scope is limited to design advice only to the engineer of record concerning implementation of Aslan FRP bars.

To assist you, our staff needs a clear understanding of:
- Geometry of the concrete member -- electronic or CAD drawings are most helpful
- Moment and shear forces the member is subject to
- Concrete strengths

email Hughes Bros. engineering staff