Garage floor slab design pdf

In most cases, the slab thickness is designed as an unreinforced concrete section. Reinforced concrete slab design guidelines a effective span of slab. Structural modeling and analysis of concrete floor slabs. Custom home design cad northwest workshop and garage plans. Use of slab foundations can also make it more difficult to install wiring, plumbing, and ductwork, so. Chapter 4, floor construction 71 the primary design consideration in choosing the minimum size and the maximum span and spacing of floor joists, trusses, beams, girders, and headers is adequate support for dead and live. However, even interior climate controlled spaces can experience temperature ranges of 40 o to 60 of. Design of heavy duty concrete floor slabs on grade. Flat slab analysis, design and detailing pdf civil engineering. After determining a standard design vehicle through the investigation of small to medium vehicles made in korea, finite element analyses were conducted to obtain the maximum member forces at each slab location. Th e floor slab design procedure presented the maximum allowable stationary live load is lim. Reinforced concrete slab design and detailing guidelines for depth of slab, loads on slab, reinforcement guide for oneway and twoway slabs as per is 456. The difficult part of automating concrete design is the floor slab. Interior floor slabs are usually not subjected to the same severe temperature gradients experienced by outside pavements.

The wire reinforcing institute recommends the use of the subgrade drag theory for slabs up to 150 feet in length. They are used for storing vehicles and goods, and provide maneuvering areas and access for delivery vehicles. Although coldformed steel framing for floor systems also is permitted by the irc, it is not covered here. Recommend design process for residential garage floor joists the use of wood members to support a garage floor is a common practice for sloping lots. Pdf slabs are the flooring systems of most structures including office, commercial and residential buildings, bridges, sports stadiums and. Concrete design procedures generally follow the strength design method contained in aci318, although certain aspects of the procedures may be considered conservative relative to conventional residential foundation applications. Stresses in floor slabs on grade resulting from vehicular loads are a function of. Garage plans and garage blue prints from the garage plan shop. Moreover, the design and construction details of this parking garage are used to illustrate code requirements, flat slab analysis, design details, and the construction of gfrprc flat slabs. This manual p rescribes the criteria for the design of concrete floor slabs on grade in buildings for heavy.

A civil engineer should study these lectures and materials for structural engineering acumen. If you are new to radiant heat, our design and construction manual is a must read. After the floor has set, the garage walls are built upon and bolted to the foundation wall. Open floor plan with garage options 23064jd architectural. The slab thickness depends on the type of loads on the floor slab. Reinforced concrete sk 33 section through slab showing stress due to moment. The load on slab comprises of dead load, floor finish and live load. In addition, a costanalysis comparison between steelrc and gfrprc designs is presented. Garage floor slab construction process includes the preparation of base, erection of formwork, placement of reinforcement. This manual p rescribes the criteria for the design of concrete floor slabs on grade in buildings for heavy loads and is applicable to all elements responsible for military construction. Guide to formwork for concrete aci 34704 shall be followed for the design of formworks. Slabs are elements forming floor and roofs in building which normally carry uniformly distributed loads. Unless your yard is perfectly flat, youll need to cut and fill to provide a level surface. Design of slab examples and tutorials by sharifah maszura syed mohsin.

It is the responsibility of the owner andor builder to ensure these garage plans comply with local building codes. Sixinch slab on grade with 12 bars 6 on center both directions for temperature steel. This creates additional space under the garage that may be used for occupancy. Tips for a better concrete garage floor slab the spruce. For preliminary design, an average value of 50 horizontal lux 5 hfc for basic and equivalent for other conditions may be calculated.

The thickness of the garage floor slab depends on many factors such as types of loads coming upon the slab, climatic condition, design mix of the concrete and span of the concrete. Recommended practice for design and construction 11 parking structures have become important elements in todays urban and suburban environments. Slab insulation methods, calculating heat loss, tubing options, system options and much more, all written in easy to understand language for the homeowner with pictures and diagrams. Standard thickness of the garage floor slab used worldwide is 6 inches. The pictorial to the right illustrates the four main sections getting started, foundations, floor framing. If your garage floor is going to see constant traffic from heavy vehicles, it is recommended that you pour your floor at least six to eight inches thick. Here, we have tried to gather various reading materials available in the web about flat slab floor system in one place. Flat slab analysis and design pdf flat slab design pdf 1. We are designing a 22 x 24 garage with a music studio below. The floor plan shows the location of interior and exterior walls, doors, windows, stairs, closets, cabinets, flooring, appliances, plumbing fixtures, fireplaces, posts and beams. A civil engineer must know all the aspects regarding the flat floor system.

Owners have realized that parking services represent the first and last impression a visitor receives of the facility, and that can be a pivotal factor when con. At that time, this technique brought a considerable deadload reduction and was essentially seen as a substitute for traditional reinforced concrete. Improve comfort and save energy in homes with slabongrade floors office of building technology, state and community programs. Wood design procedures are used to design the connections between the foundation system and the structure above and follow the allowable stress design method for wood construction. Your floor must also be treated and sealed properly so that heavy loads like large trucks do not cause the concrete to crack. This publication provides basic design guidance and construction details for raised wood floor foundations. Design of slab for flexure 067 m unit width of slab. While this provision also lessens the impact of a prohibition on live load reduction for parking garage deck members, the changes were made for totally unrelated reasons. Shear strength of beamless slabs usually a controlling factor. Refer to aci 223 for procedures for the design and construction of shrinkagecompensating concrete slabsonground. The 78 durapoly xl pex is a large diameter tubing with the same wall thickness as the commonly used 12 pex.

Copper within concrete is highly susceptible to corrosion and a lifespan of 50 years for a radiant floor was considered exceptional. The following definitions have been adopted for the manual. Aci 360, design of slabsongrade, refers to this as a type b slab. Elevated garage floor concentrated live load structuralint. Flat slab analysis, design and detailing pdf flat slab system is an important division of concrete floor system. The lateral loads are independently resisted by shear walls. The minimum thickness can be determined by many factors. The cement and concrete association of australia is.

Building codes provide minimum standards to support garage applications and should be followed. The thickness of a floor slab must be determined early in design because the weight of the slab is an important part of the dead load of the structure. Many people understand that wood shrinks and expands as temperature and humidity ebb and flow through the year. Moreover, the design and construction details of this parking garage are used to illustrate code requirements, flatslab analysis, design details, and the construction of gfrprc flat slabs. Twoway joist concrete slab floor waffle slab system analysis and design design the concrete floor slab system shown below for an intermediate floor with partition weight of 50 psf, and unfactored live load of 100 psf. It determines the stability of what you place on top of it and has to be designed in accordance with the weather and soil conditions that exist on the property where you plan on building a garage. Following are the rcc slab design and detailing guidelines. Whichever design is followed, the keys to an effective slab. These detached garages add value and curb appeal to almost any home while fitting neatly into the backyard or beside the house.

Openings in concrete floor slabs buildings if you took an advanced concrete design course, you probably had a good introduction to the design of twoway slabs. Sep 03, 2011 reinforced concrete sk 33 section through slab showing stress due to moment. For slabonground floors it provides an understanding of the footingslab selection, design, detailing and construction requirements contained in as 2870 and. It was actually the widespread use of the posttensioned slabonground which induced this interest in design procedure and in many studies of reported slab failures. The other type of garage foundation is a monolithic slab meaning one piece of concrete, poured all at one time. Twoway joist concrete slab floor waffle slab system. Guide for design and construction of concrete parking lots aci 330r01 concrete parking lots serve many transportation facilities, industrial plants, commercial developments, and multifamily housing projects. Heavy loads in building s such as warehouses include moving load s, stationary live loads, and wall loads.

The floor area is 4 deep before it thickens into a short wall formed around the perimeter, 6 wide and 8 above grade and 12 below. Pdf design of reinforced concrete slabs ninos dinkha. Elevated garage floor concentrated live load structural. All garage plans purchased through are provided asis and are ed by their respective architects and designers. Slope floor slab toward the largest door at 18 per foot. These materials are originally located at different websites. Improve comfort and save energy in homes with slabon. Simplified slab design approach for parking garages with. Garage concrete floor slab construction, thickness and cost. Chapter 3 design loads for residential buildings methods for determining design loads are complete yet tailored to typical residential conditions. It is potable and ultraviolet resistant for protection against sun damage during installation. The recommendations derived from these and other studies vary from extremely light to extremely heavy.

Floor slab design floors are designed as slabs on grade. The major structural components of a slabongrade foundation are the floor slab itself and either grade beams or foundation walls with footings at the perimeter of the slab see figures 42 and 43. Therefore it is reasonable to design for the maximum temperature range that the slab will experience during its service life. Reinforced concrete design 1 design of slab examples. Masonry design procedures follow the allowable stress design method of aci530. Engineered suspended garage slab i realize the garage floor needs to be engineered, and it will be after my design process is complete, but just for interest sake, what might this look like. For preliminary design, an average value of 50 horizontal lux 5 hfc for basic.

Flat slab analysis, design and detailing pdf civil. For slab onground floors it provides an understanding of the footing slab selection, design, detailing and construction requirements contained in as 2870 and. Tm 580912 concrete floor slabs on grade subjected to heavy. Reinforcing is added to control shrinkage cracking and maximize the distance between designed joints. This article discusses the similarities and differences between traditional frame methods and finite element methods for the design of floor slab systems.

For this reason, some supplemental design guidance is provided when practical and technically justified. Twocar garage plans are designed for the storage of two automobiles. In most cases, skeletal members such as beams, col umns, and frames made from them can be. Floor plan sheet floor plans are horizontal cuts through each floor level of the home, usually at 5 above the floor. The type 1 foundation shown at the left is usually suitable for a onestory garage design that your building official can be certain will never be used for human habitation. Reinforced concrete slab design and detailing guide is456. The garage foundation is the most important part of your building project from a longterm perspective. Recommend design process for residential garage floor joists.

This is the heavy duty garage plans collection, made larger, stronger, better. An unreinforced edge thickened concrete slab may be used where the ground is uniform and provides a satisfactory foundation bearing. Guide for design and construction of concrete parking lots. Concrete slab moisture can cause problems with the adhesion of floorcovering material, such as tile, sheet flooring, or carpet and bondrelated failures of nonbreathable floor coatings. This manual provides a wealth of general information about radiant heat. House w loft 770 sq ft excellent floor plans apartment with garage pdf floorplan 1528 sqft model metal buildings shops with color schemes and metal garage buildings in alabama check out the pic for many tips and ideas. Here are my minimum requirements for a typical slab on grade.

Design of foundations for detached individual garages or blocks of garages should avoid damage caused by differential loads and uneven settlement. Design of concrete floors with particular reference to post. The following is a discussion of the design of these elements. Main garage floor plan p2 loft and roof framing plans e1 main garage front elevation. Find the following parameters for design moments in step 2 per unit width step 4 note. For most sheds, a concrete slab foundation is essential. Many radiant floors, most using copper tubing buried within concrete slabs, were installed and used successfully in the 1960s and 70s. Thats why it is necessary to include expansion joints along the edges of the concrete garage floor as well as around posts or other protrusions in the slab. Therefore, flexural design of slabs and beams is more economical under aci 31802 than under prior editions of aci 318. It is an inexpensive approach to a combination floorfooting system that can even be used in deepfrost country if the soils drain well so as to prevent frost heave damage to any part of the garage foundation and. The design of suspended floors should conform to requirements of aci 318 and aci 421. Specific design requirements for concrete floor construction are found in aci 360r for slabsonground, aci 223r for shrinkagecompensating concrete floors. Pdf composite floor slab design and construction researchgate. Tm 580912 concrete floor slabs on grade subjected to.