
Explore the design of precast, prestressed hollow core slabs using ACI code, including hollow core geometry, strand layouts, and deflection control for spans up to 16 meters.
Explain pretensioning hollow core slabs by strand jacking up to 0.7–0.8 FBU, transferring tension to concrete as compression; cast by extrusion, slab forming, or flow forming, then curing and cutting.
Examine how hollow cores are supported on beams by core pills, with bearing lengths, and understand the final hollow-core arrangement, bays, and core-film use to resist shear.
Explore the design of a prestressed hollow-core beam with an 11 m span and 8 strands of 12.7 mm, covering flexure, shear, deflection, and transfer steps under ACI guidance.
Design a holocore with the concise beam software, configuring US units, selecting the ACI38-19 code, and defining 11 m beam section and CIP cast in situ bore as a load.
Define hollow core concrete material properties in concise beam software, including density 2500 kg/m3, f'c 40 MPa, FR 3.9 MPa, EC 4700 pi sqrt(f'c), and transfer and tubing stage values.
Define hollow core precast parameters, adjust mix properties such as slump, cement content, air content, and aggregate size, and assess losses, curing, and climate-zone considerations with SEI and PCI methods.
Define and apply load types and load groups to hollow core beams, including self-weight, dead load, and live load. Assign stages from casting to final surface and set load durations.
Precast & Prestressed Concrete Design Using ACI and Concise Beam.
Precast and prestressed concrete systems are transforming modern commercial construction, especially across Gulf region projects where speed, quality control, and structural efficiency are critical.
This course provides a practical, real-world, step-by-step guide to designing prestressed hollow core slabs and prestressed beams according to ACI provisions using Concise Beam software.
This is not just theory.
You will complete a full real design example exactly as it is done in professional engineering offices.
In this course, you will:
Understand the structural behavior of prestressed members.
Learn how hollow core slabs are manufactured in precast factories.
Read and interpret shop drawings and connection details.
Apply loads and ACI design provisions correctly.
Perform full modeling and design using Concise Beam.
Follow a professional workflow used in real precast companies.
By the end of this course, you will confidently design prestressed elements for commercial buildings.
Outcome
After completing this course, you will:
Design prestressed hollow core slabs confidently
Apply ACI provisions correctly
Use Concise Beam professionally
Understand real precast factory workflow
What Makes This Skill Valuable?
Precast and prestressed systems are widely used in:
Shopping malls
Warehouses
Commercial buildings
Parking structures
Industrial facilities
Engineers with practical prestressed design experience are in high demand — especially in fast-growing construction markets.