Delta Structural Technology, Inc. is construction firm
specializing in the design and installation of Fiber Reinforced Polymers
(FRP's). We provide stamped plans and calculations for our projects
based on structural information provided for us by the structural
engineer of record. Delta Structural Technology, Inc. provides turn-key
design and installation. click
here to download specific
material data sheets and design information.
Providing confinement and external reinforcement, the Fibrwrap TM
System adds strength and ductility to existing concrete structures.
Single and Bi-directional, high strength hybrid fibers suspended in
an epoxy matrix form the FRP composite. In comparison to traditional
A36 steel, the SEH51 E-Glass Fibrwrap TM System weighs one-third the
weight of steel and has two times the tensile strength. By containing
the concrete, damaged columns, beams, and walls as well as under designed
structures, retrofitted with the Fibrwrap TM System, will significantly
increase in shear strength, flexural strength and ductility. The Fibrwrap
TM Systems conforms to the existing structures during application,
allowing retrofits of rectangles, octagons, squares, ovals, flares,
and many other geometric shapes, without significantly altering the
original architectural design. The system can be applied to beams,
walls, slabs, and columns.
Click
for larger image.
Fiber reinforced polymers have the highest strength
or stiffness-to-weight ratios among engineering materials. The structural
properties of FRP's are derived primarily from the internal fibers
at a fiber-to-matrix ratio of 60:40 or higher. There are many types
of structural fibers available; carbon, poly-aramid, glass/e-glass,
boron and alumina fibers that reinforce polymers. Material properties
are often misunderstood with FRP's, partly due to representation of
the higher properties of dry fiber rather than the composite properties
of the matrix after emersion in the epoxy. Proper saturation of the
fabric into the matrix must be achieved for these materials to reach
their designed structural properties. Surface preparation is also
a critical factor when applying FRP's. There are more than a quarter
million deficient or obsolete structures in the US alone. Extensive
testing of FRP's have provided design values for axial load enhancement,
shear enhancement, flexural increases, and blast mitigation allowing
cost-effective solutions to existing structural elements. The ICBO
(International Conference of Building Officials) have recently made
provisions to existing codes and have issued acceptance criteria (AC125)
for the use of FRP's on masonry structures. FRP material specifications
should incorporate ICBO approval and specific controls and guidelines
set forth in ACI 440F-2 and AC125 to ensure safety and design assurance |
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| ©2000 Delta Structural Tech, Inc.
3601 N Loop 336 W | Conroe, Texas 77304
T: 281.821.3006 | F: 936.539.2118
info@fiberwrap.com; erik@fiberwrap.com
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