For any structural design load calculations plays an important role in the overall performance of building.
All structural components and connections along the load path must have adequate strength to resist wind or snow loads in a manner that will not hamper structural stability and serviceability.
Many times load path deflections are a result of insufficient connections between structural and precast components.
Major Type of Connections Includes:
Wet and dry connections are most commonly used to transfer shear forces. Wet connections use reinforced concrete to form the junction between elements.
Dry connections use anchor-bolt settings to transfer loads. Engineers choose dry connections over wet because of construction simplicity. Wet connections are preferred when the structure is subjected to cyclic or seismic loading conditions.
To transfer shear and tension loads between Precast Concrete Structure Design Elements and structural steel, embedded anchor bolts and headed studs are preferred choice. Anchor-bolt settings must be designed and detailed to ensure that if there is a connection failure it starts with anchor steel but not in surrounding concrete.
The contractor may review anchor-bolt settings, failure modes, test outputs and erection schedule to select right expansion anchor. Expansion anchors are used to verify the sufficiency of the specific anchor-bolt settings. They will not be installed in concrete where there is a possibility of abrasion, cracking or deflection.
All structural components and connections along the load path must have adequate strength to resist wind or snow loads in a manner that will not hamper structural stability and serviceability.
Many times load path deflections are a result of insufficient connections between structural and precast components.
Major Type of Connections Includes:
- Column to column
- Beam to column
- Girder to beam
- Wall to beam
- Wall to Slab
- Wall to foundation
Wet and dry connections are most commonly used to transfer shear forces. Wet connections use reinforced concrete to form the junction between elements.
Dry connections use anchor-bolt settings to transfer loads. Engineers choose dry connections over wet because of construction simplicity. Wet connections are preferred when the structure is subjected to cyclic or seismic loading conditions.
To transfer shear and tension loads between Precast Concrete Structure Design Elements and structural steel, embedded anchor bolts and headed studs are preferred choice. Anchor-bolt settings must be designed and detailed to ensure that if there is a connection failure it starts with anchor steel but not in surrounding concrete.
The contractor may review anchor-bolt settings, failure modes, test outputs and erection schedule to select right expansion anchor. Expansion anchors are used to verify the sufficiency of the specific anchor-bolt settings. They will not be installed in concrete where there is a possibility of abrasion, cracking or deflection.
Nikunj Patel is a design engineer working at Outsource Structural Drafting for the past 4 years. He loves designing Expert industrial equipments and can always be found in the lab discussing, brainstorming and tweaking designs. He has also worked on architectural projects taking interest in every aspect of design and analysis.
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