Inter-wythe Slip Design Criteria for Non-Composite Insulated Walls

Authors

Abdelrahman Awawdeh, University of Nebraska - LincolnFollow
Fray F. Pozo-Lora, University of Nebraska - LincolnFollow
Marc Maguire, University of Nebraska - LincolnFollow

Date of this Version

Spring 2023

Citation

Awawdeh, A., Pozo-Lora, F. F., Maguire, M. (2023) "INTER-WYTHE SLIP DESIGN CRITERIA FOR NON-COMPOSITE INSULATED WALLS" PCI/NBC 2023, Columbus, OH.

Comments

This article was submitted to the Precast/Prestressed Concrete Institute Convention and National Bridge Conference

Abstract

Non-composite insulated wall connector design is governed by ICC-ES AC320. This standard works entirely in the loading domain, asking the engineer to prevent connector failure due to tension and shear loading. In this paper, the authors discuss additional criteria related to thermal loading and out-of-plane wind loading that create displacement demand in the non-composite connectors. Loads suitable for such analyses are not well defined. Loads are assumed and demonstrated herein and shown to cause significant displacement demand on connectors. Limited non-composite wythe connector testing is available, and some results are presented here. A comparison indicates that outright failure of non-composite connectors is unlikely for current designs, but fatigue due to thermal and wind loading may be of important consideration, in particular for tall panels.