The following is a technical guide for slab on grade home construction. Jun 14, 2017 though this step is discussed at the last of construction sequences, follow up have to be done during and after construction. There are 16 different types of slabs in construction. Without support, the slab has little chance of supporting. Formworks requirements for different structural members are different and they are named based on type of structural member. Now, installation of slab on grade come with the use of construction equipment. Formwork shuttering is a temporary mould to provide support to fresh concrete when.
Guide to the design and construction of reinforced. The construction and design of concrete slabs on grade. Grdslab is a spreadsheet program written in msexcel for the purpose of analysis of concrete slabs on grade. The following is a technical guide for slabongrade home construction. Slabongrade construction technical guide deciding to build your home with a slabongrade foundation instead of a conventional basement or raised crawlspace foundation can greatly reduce your environmental impact during construction, and has the potential to. Periodic evaluation of performance of structure should be done. The construction of the proposed project will begin once the. It is the cheapest way to build a ground slab, but it requires a good quality ground which can suppo. The following key e floor and slab construction are given where appropriate.
Guidelines for high performance slabongrade construction the euclid chemical company. Jun 03, 2019 to begin the actual construction, the clearing of the ground from where the location of the project will be built is the first thing to consider. Dictionary of construction terminology slab on grade. Expansion joint in slabongrade structural engineering. Aug 23, 2016 with the right design, the detractors of slab foundations can be reduced or doneawaywith entirely, and the benefits can be maximized, making slab on grade a fantastic choice for home building in ottawa. Post tension slab design software post tension slab design software mck26 structural op 18 aug 16 14.
Guide material testing guide mix design guide rate analysis. To begin the actual construction, the clearing of the ground from where the location of the project will be built is the first thing to consider. Figures 412 through 414 show variations where the slab is the primary location for insulation. Posttension basics how posttensioned slabs are built the. A slab on grade is a ground floor slab that is continuously supported by the ground underneath, without load transfer to any beams or foundations. Calculators for structural engineers, construction professionals and steel building specifiers. In this activity, the construction personnel task is to free the construction site for any obstruction and debris that may obstruct and delay the construction. How to build high quality slabs on grade a concrete construction primer on what it takes to build concrete slabs from proper subgrade preparation to adequate curing concrete slabs are used to support everything from patio furniture, to foot traffic, to semitrailer trucks.
Scroll down this page to see an example of a typical construction schedule for a large custom home. For a slab on grade internal to a building such as the basement of an enclosed building i dont used expansion joints because the temperature variation will be minimal and the ground will help control the expansion and contraction. Concrete slab on grade analysis calculator for post or. Mar 17, 20 this video show the procedure to form up a slab on ground. Slab on grade or grade slab types construction procedure. Design is defined as the decisionmaking process of planning, sizing, detailing, and developing specifications preceding construction of slabs on ground. Slab on grade foundation design slab on grade design. Specifically, a concrete slab on grade may be subjected to concentrated post or wheel loading. Aci committees 360, design of slabs on ground, and 302, construction of concrete floors, have been at the forefront of the effort to provide the industry with the tools to produce slabs that are flat and level, with a densely finished surface, stable joints, and limited cracking while being capable of supporting applied loads. Figures 49 through 411, and 415 show configurations with insulation on the exterior surface of the foundation. Shallow foundations include spread footing foundations, mat slab foundations, slab on grade foundations, pad foundations, rubble trench. For residential construction, tendons at 48 inches on center are common.
Commercial construction building sequence pmmang project. I work as a construction detailer and for example an rc retaining wall would be poured in a number of stages base and wall kicker first, wall second and lastly slab over if present. Soil investigations it is considered imperative that a soils investigation be made on any site on which a design is to prepared. Some of them are outdated and many of them are frequently used everywhere. Technical assignment 2 reston station phase 1 garage reston, va jonathan a fisher. Production of a quality concrete slab requires proper techniques and adequate planning.
Slabongrade construction is when a concrete floor slab is poured at grade level to provide a foundation for a home. The key is to do it right, which is probably the subject of an entire book, most of which will be written here momentarily if i make one more sweeping generalization. Adaptabi is bridge design software with construction sequencing and. Guide to the design and construction of reinforced concrete. Adapt corporation specializes in structural concrete design software for. Slabongrade slab is the concrete or other material platform placed as base for construction. Prior to start the construction, contractors excavate the soil adjacent to the area where the foundation should be constructed and ensure that the ground has sufficient strength to support the structure.
Economically design posttensioned and reinforced concrete floors including slabs, mats, and rafts, with exceptional visibility into compliance, efficiency, and practicality. These slabs may be supported on continuous foundations, piers or piles and grade beams, or grade beams directly on isolated footings, for example. We therefore recommend that terracon be retained to monitor this portion of the work. Slab on grade construction is when a concrete floor slab is poured at grade level to provide a foundation for a home. The formwork shall be designed to withstand construction loads such as fresh concrete pressure and weight. Both slab on grade and structural slabs can be created using this formwork. Installing of grade slab mesh and concrete work is then to be followed. Design is defined as the decisionmaking process of planning, sizing, detailing, and developing specifications preceding construction of slabs onground. Information on other aspects, su ch as materials, construction methods, placement of concrete, and finishing techniques, is. Aci 360, design of slabsongrade, refers to this as a type b slab. Microsoft project detailed schedule penn state engineering. It is very necessary to check the levels of foundation before concrete work. Once you have finalised all the legal and documentation requirements and you have obtained a building permit from your local council the construction process can begin.
Design is defined as the decisionmaking process of planning, sizing, detailing, and developing specifications preceding construction of slabsonground. Introduction concrete slabs on grade are a very common type of concrete construction. Concrete slab on grade analysis calculator for post or wheel. In construction, a grade slab is a relatively flat concrete structure built on top of the soil at ground level.
The sequence of work to be followed in the construction of a building is the at most important procedures of. Sequence of work in building construction the constructor. The structural world topics general the sequence of actual construction tie beam reinforcement, grade slab, and concreting. Powered by a sophisticated fem solver increasing capacity and substantially speeding up solution for large and complex models, spmats v8.
Develop and report on criteria for design of slabs on grade, except highway and airport pavements 1. This method of reinforcing concrete enables a designer to take advantage of the considerable benefits provided by prestressed concrete while retaining the flexibility afforded by the castinplace method of building concrete structures. The grade surrounding foundation perimeter should be inspected for expected slope. Slabongrade and posttensioned slab software adaptsog. Nov 25, 2008 posttensioned concrete is a term heard more and more in the construction industry today. Concrete floor slab construction process includes erection of formwork, placement of reinforcement, pouring, compacting and finishing concrete and lastly removal of formwork and curing of concrete slab. Post tension slab design software structural engineering. Grdslab concrete slab on grade analysis spreadsheet. The perimeter of the grade slab is thicker than the rest of surface, this thicker section acts as a mini footing and helps to distribute top loads more evenly across the surrounding soil. There are many different soil conditions and corresponding slab designs. Construction sequence of a typical floor formwork erection based on traditional manual method wall form panel on the lower floor to be removed and lifted onto.
Guide for concrete floor and slab construction aci 302. Column rcc reinforced cement concrete column is a structural member of. The use of concrete vibrator is essential so you could. This simple slab design differs from the reinforced slab technique used for elevated concrete floors, and does not require support from underground footers or foundation walls. The depth of a concrete slab floor is very small compared to its span. Get in touch with us to find out more about how windmill construction and the benefits of slab on grade. The construction and design of concrete slabs on grade d. A sample construction schedule and custom home building time. Concrete slab on grade rough framing roofing rough electrical rough plumbing rough hvac installation of windows.
The sikafiber software for calculating fiberreinforced concrete slabs on. Safes age adjusted modulus of elasticity method for flat plate slab analysis was found to be. Geotechnical engineering report pavilion construction. The result is a lightly reinforced slab designed to offset the effects of temperature and shrinkage of the concrete. So slabonground means that the building has a concrete or other material slab or platform placed right on ground soil. It was produced using microsoft project scheduling software and includes most, but not all, of the activities involved in the process of building a new house in maryland. Concrete construction how to build high quality slabs on. Optimize your fiberreinforced concrete slab on grade.
The variations presented later in this paper have been derived empirically. Slab on grade belongs to concrete floor slabs which are poured at grade or ground level to develop a foundation for a home. In this article, ill give a detailed explanation of each slab where to. Flat concrete structure built on top of the soil at ground level and does not require support from underground footers or foundation walls. I use smooth dowels and not a key as mentioned above. Bridge design software with 4d construction sequencing and time. Safe is the ultimate tool for designing concrete floor and foundation systems. How to use this guide s n n n that are found in aci 302. The following is a detailed technical guide for slabongrade foundation construction, including build videos, so your new home build gets a. With the right design, the detractors of slab foundations can be reduced or doneawaywith entirely, and the benefits can be maximized, making slab on grade a fantastic choice for home building in ottawa. Jan 06, 2014 there are many different soil conditions and corresponding slab designs. It is a horizontal structural component, with top and bottom surfaces parallel or near so. August 23, 2016 by windmill construction slab on grade 0 comments.
Slab thickness, t area of steel provided, as pca note. Following the schedule analysis a detailed structural system estimate is. A slab pour requires efficient planning so that all of the elements that go into producing a highquality slab are done in time before the concrete sets and done correctly. This grade slab acts as the foundation for a home or building, and provides a stable base for w. Pgsuper models the various construction stages with construction events. A shallow foundation is a type of building foundation that transfers building loads to the earth very near to the surface, rather than to a subsurface layer or a range of depths as does a deep foundation. When following the normal sequence of constructing the slab, striking off, and then finishing, a concrete contractor encounters many types of tools and equipment needed to make the job successful. Soilstructure slab on grade software simplifies the calculation of a uniform concrete slab subjected to three loads. What is grade slab and what is the difference between. A few fundamentals residential slab on grade construction involves clearing and leveling the soil where one is going to build a home, forming and pouring a concrete pad the slab, and stick framing the walls and decks of the home on the slab.
Theoretical concepts, practi cal applications, basis of. Feb 08, 2015 reinforced concrete building design sketch up animation. Subgrade the subgrade must be properly compacted and drained in order to give the bearing support assumed in design. Online concrete slab on grade analysis calculator for slab subjected to interior concentrated post or wheel loading assuming slab is reinforced for shrinkage and temperature only.
So under structural plans in the project browser, lets go to level one. Construction sequence of raft or mat foundation civil. Slab on grade construction technical guide deciding to build your home with a slab on grade foundation instead of a conventional basement or raised crawlspace foundation can greatly reduce your environmental impact during construction, and has the potential to offer significant financial savings as well. If youve lived your entire life in canada or america, chances are you havent. Though this step is discussed at the last of construction sequences, follow up have to be done during and after construction. Design floors and foundations reliably and efficiently, saving time and money, and overcoming the most common concerns you face as a designer. Wall frame components and construction sequence duration. Crawlspace, basement, monolithic, stem wall with slab on grade.
Euclid chemical concrete floor systems design guide. With computer software creating schedules and managing projects has never. Aci 360, design of slabs on grade, refers to this as a type b slab. Slab on grade can be done successfully anywhere you would build a house with strip footings and stemwalls for a joisted floor. Posttensioned slab on grade foundation 3d fem design software adaptsog product overview adaptsog is a complete threedimensional 3d finite element fem analysis and design tool for the analysis and design of posttensioned foundations slabs on expansive soils. This page is about how to build a thickened edge concrete slab on grade fpsf footing on soil with a high water table to prevent frost heave, by first installing drainage below the slab. In 1965 the writer developed a complete, overall design system, later modified to con. Excavation, forming, and placement of the concrete foundations, footings, piers, grade beams, elevator pits and walls, installation of anchor bolts, elevator tubes and other required activities except the forming and placement of the first floor slab, which is completed later to ensure that it isnt damaged by construction activities. Then for the given parameters, the slab flexural, bearing, and shear stresses are checked, the estimated crack width is determined, the. Now that you have a list of construction activities to include in your schedule, put them in a sequence that approximates the construction sequence.
Tools of productivity concrete construction magazine. Event 1 construct girders and erect piers event 2 erect girders event 3 remove temporary strands and cast diaphragms event 4 cast deck event 5 construct traffic barriers. This video show the procedure to form up a slabonground. The following steps relate to the sequence of construction for a typical house some steps may vary depending on the method of construction and type of structure being built. Tf 700r07 page 2 residential slabonground construction. In this section several typical slabongrade sections are illustrated and described. What id like to do in the video is to create basically a slab on grade. Tie beam reinforcement, grade slab, and concreting the. Guidelines for high performance slab ongrade construction the euclid chemical company. On the other hand i have taken a picture of a bunker that was not completed, showing only the floor slab and a small kicker for the walls. Formwork shuttering for different structural members beams. Slabs may be supported on two sides only or have beams on all four sides. Close monitoring of the construction operations discussed herein will be critical in achieving the design subgrade support.
Tie beam reinforcement, grade slab, and concreting. Concrete slab, a very common and important structural element, are constructed to provide flat, useful surfaces. Have you ever been in a house that didnt have a basement. Slab on grade construction for dummies untaught engineer. But the methodology is there if you want to go to those extremes.
The sequence of actual construction the structural world. Concreting to wall and floor completed cycle repeated similarly to the upper floors start bar for column or wall. Heavy loads in building s such as warehouses include moving load s, stationary live loads, and wall loads. Slab on grade a type of foundation with a concrete floor which is placed directly on the soil. You will probably find several paths through the project. Posttension basics how posttensioned slabs are built. Asce, secb course content slab on grades construction. Guide to the design and construction of reinforced concrete flat slabs contents membersof the projectsteeringgroup list of tables vii iv list of figures v 1. Before casting slab on grade, the earth is excavated up to the required depth and compacted to expel air voids. Posttensioned, reinforced concrete slab design software ram.
Reinforced concrete, and prestressed beam, slab, foundation, building and. Concrete formworks shutterings are required for fresh concrete constructions such as walls, slabs, beams, columns, footings etc. Roof slab of building is poured after completion of masonry works. Construction schedulinglearn how to schedule your next. Construction of posttensioned slabs on grade is very similar to using reinforcing steel, except for the tensioning step. Grading and drainage plans, when available, may be helpful in identifying some of these significant fea. Technical assignment 2 penn state college of engineering. Download free demo updated august 8, 2019 soilstructure slab on grade software simplifies the calculation of a. Cables are arranged as indicated by the engineer and chaired to run through the center of the slab. How to build high quality slabs on grade the concrete network. Floor slabs can range from a simple residential basement slab to a heavyduty industrial floor. Aug 27, 2015 guide to the design and construction of reinforced concrete flat slabs contents membersof the projectsteeringgroup list of tables vii iv list of figures v 1.
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