Technical Specifications

E8879.01-119-19
Page 5 of 15
4.0 Structural Performance Testing of Assembled Railing Systems
Re: ICC-ES
™
AC273 - Section 4.2.1
4.1 General
Railing assemblies were tested in a self-contained structural frame designed to accommodate
anchorage of a rail assembly and application of the required test loads. The specimen was loaded
using an electric winch mounted to a rigid steel test frame. High strength steel cables, nylon
straps, and load distribution beams were used to impose test loads on the specimen. Applied
load was measured using an electronic load cell located in-line with the loading system.
Deflections were measured to the nearest 0.01 in using electronic linear displacement
transducers.
4.1 Railing Assembly Description
The Designer’s Image guardrail system consisted of aluminum top and bottom rails with spaced
pickets between the rail members. The railing systems had an overall top rail length (inside of
post to inside of post) of 93-1/2 in with an overall rail height (top of top rail to bottom of bottom
rail) of 32-1/2 in. Top and bottom rails attached to aluminum post mounts via metal straight
brackets on one end and preservative treated 4x4 SYP wood post via metal straight brackets on
the other end. One support block was utilized and was located at the midspan of the bottom rail.
See Section 5.4 Fastening Schedule for connection details. See drawings in Appendix A and
photographs in Appendix B for additional details.