RESULTS FOR DEFLECTION IN CONCRETE

Definition: movement of a point on a structure or structural element, usually measured as a linear displacement or as succession displacements transverse to a reference line or axis.- ACI Concrete Terminology

Deflection control is an important serviceability consideration in the structural design of concrete buildings. The principal material parameters that influence concrete deflection are modulus of elasticity, modulus of rupture, creep, and shrinkage. While provision of an adequate level of safety against collapse is the primary design consideration, the structural engineer must take into account possible adverse effects of excessive deflections on the performance of the structure at service load levels. Potential problems associated with excessive deflections are well known and include: damage to nonstructural elements such as partitions and windows; jamming of doors and windows, gaps between partitions and floors and between columns and floors; improper operation of equipment; and visual perception of sagging floors and ceilings.

Informational Resources News, Events & Engagements ACI Web Pages

Informational Resources on deflection in concrete

STANDARDS, PRACTICES and MANUALS ON DEFLECTION IN CONCRETE

ACI PRC-435-20: Report on Deflection of Nonprestressed Concrete Structures

SP-017(11): The Reinforced Concrete Design Manual Volumes 1 & 2 Package

ACI PRC-435.8-85: Observed Deflections of Reinforced Concrete Slab Systems, and Causes of Large Deflections (Reapproved 1997)

MNL-7(23) GFRP-Reinforced Concrete Design Handbook

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ACI PRC-209-92: Prediction of Creep, Shrinkage, and Temperature Effects in Concrete Structures (Reapproved 2008)

ACI CODE-349-23: Nuclear Safety-Related Concrete Structures—Code Requirements and Commentary

SP-017(14): The Reinforced Concrete Design Handbook (Metric) Faculty Network

SP-017(14): The Reinforced Concrete Design Handbook (Metric)

ACI PRC-439.6-19: Guide for the Use of ASTM A1035/A1035M Type CS Grade 100 (690) Steel Bars for Structural Concrete

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JOURNAL Articles ON DEFLECTION IN CONCRETE

Immediate Deflection of Cracked Prestressed Concrete Beams Based on Integration of Curvature

Publication: Structural Journal
Date: 1/1/2025

Experimental and Analytical Investigation of Deflection of R-UHPFRC Beams Subjected to Loading–Unloading

Publication: IJCSM
Date: 12/31/2024

Serviceability and Strength of Polypropylene Reinforced Self-Consolidated Concrete Beams Reinforced with GFRP Bars Under Bending Cyclic Loading (Prepublished)

Publication: Structural Journal
Date: 12/19/2024

Fiber-Reinforced Polymer Reinforcing Bar-Reinforced Ultra-High-Performance Concrete Flexural Members with Compression-Controlled Design (Prepublished)

Publication: Structural Journal
Date: 12/17/2024

Structural Performance of Geopolymer Concrete: Bond, Flexural, Shear and Axial Strengths (Prepublished)

Publication: Structural Journal
Date: 12/6/2024

Hooking Effect on Flexural Strength and Toughness of Steel Fiber-Reinforced Concrete Beams

Publication: Materials Journal
Date: 12/1/2024

Split Tensile Behavior of Recycled Steel Fiber-Reinforced Concrete (Prepublished)

Publication: Materials Journal
Date: 11/22/2024

Investigation on Impact-Resistant Behavior of Geopolymer Concrete Beams

Publication: Structural Journal
Date: 11/1/2024

Effective Moment of Inertia of Reinforced Concrete and Reinforced Steel Fiber-Reinforced Concrete One-Way Slabs

Publication: Structural Journal
Date: 11/1/2024

Evaluation of Flexural Strength and Ductility of Hybrid Prestressed Concrete Members

Publication: Structural Journal
Date: 11/1/2024

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Practice oriented papers and articles ON DEFLECTION IN CONCRETE

Serviceability of Concrete Structures for Explosives Operating Locations and Live-Fire Training Facilities

Publication: Special Publication
Date: 12/1/2024

Serviceability of Concrete Structures for Explosives Storage

Publication: Special Publication
Date: 12/1/2024

Further Thoughts on "Tilt-Up Design Pitfalls"

Publication: Concrete International
Date: 10/1/2024

Structural and Deformational Behavior of Flexural Concrete Beams Reinforced with GFRP and BFRP Rebars