Double Mat Slab Reinforcement Details

Figures 5 2 through 5 4 show the design detail for a mixing or loading pad floor slab with one layer of reinforcing.

Double mat slab reinforcement details.

The main reinforcing in a single barrel reinforced concrete box culvert slab is the bottom transverse reinforcing steel. Typically reinforced with a double layer of rebar throughout its pad a mat slab is capable of bearing loads at virtually any point and distributing heavy loads across an expanse of weak subsoil. This detailing corner describes practices that can be used to simplify the design detailing and placement of mat reinforcement. 2 7 development and splices of reinforcing steel 2 8 joint details 2 9 reinforcing steel supports 2 10 special details for seismic design of frames joints walls diaphragms and two way slabs 2 11 corrosion resistant coatings for reinforcing steel details and detailing of concrete reinforcement aci 315 99 reported by aci committee 315.

With heavy reinforcing bar mats in the bottom top or both locations within the mat depth. Concrete slab reinforcement deformed steel double mat. Thermal cracking in mat slabs can be managed by the type and amount of cement used by adding pozzolans by increasing the amount of reinforcing steel by reducing the. Though little known 10 years ago today mat slabs are a standard solution for building sites with difficult soil conditions.

Schedules for a mixing and loading pad floor slab on grade with one layer of reinforcing are shown in tables 5 5 alternate and 5 6. Reinforced concrete box culvert wall is the vertical reinforcing steel on both sides of the wall. Improper detailing of the reinforcement can result in constructibility issues impacting other trades the schedule and costs. ˇ ˆ ˆ ˆ.

ˆ ˇ ˆ ˇ ˆ figure 5 2. The main reinforcing in a bridge slab supported by beams is both the top and the bottom transverse reinforcing steel. For practical purposes according to pca s design and control of concrete mixtures kosmatka kerkhoff and panarese portland cement association 2002 slabs and footings more than 3 feet thick qualify as mass concrete.