Connections [DN-32]-DN-32: Connections Handout

DN-32: Connections Handout

Pdf Summary

This document provides an overview of connection design concepts and considerations for architectural precast concrete enclosure systems. The purpose of connections is to transfer forces between precast concrete elements and the supporting structure, and they must consider various forces such as gravity load, wind, seismic, and volume changes. Simple and repetitive field connections are recommended for rapid installation and economy. Compliance with building codes and meeting functional and aesthetic requirements is essential. Design coordination between all participants, including the precast concrete supplier, the Structural Engineer of Record (SER), and the architect, is crucial. Considerations for wind, seismic, blast resistance, and fire protection are discussed as well. Compatibility of connections, joints, sealants, and other facade elements must be considered to accommodate building drift. Tolerances and clearances should be anticipated to accommodate dimensional variations. Connection design and detailing are crucial for the successful implementation of architectural precast concrete enclosure systems. Various types of connections are used depending on the purpose and location of the panel, such as direct bearing, eccentric bearing, tieback, panel-to-panel alignment, column cover, slab to bearing wall, slab to side wall, and wall-to-wall connections. The responsibility for supplying field hardware depends on the structure and local practice. Connections must meet strength, ductility, volume change accommodation, durability, constructability, and economic criteria. They also need to be protected from weather and fire. Overall, connection design and installation are important for the stability and durability of architectural precast concrete enclosures.

Keywords

connection design

architectural precast concrete

enclosure systems

forces transfer

gravity load

wind forces

seismic forces

volume changes

field connections

building codes