As a thumb rule, dry volume of mortar materials is 30% of brick work. Thumb rule to estimate the shuttering required is 6 times the quantity of concrete or 2. Feminists often make that claim that the rule of thumb used to mean that it was legal to beat your wife with a rod, so long as that rod were no thicker than the husbands thumb. Pile design and construction rules of thumb sciencedirect. The phrase rule of thumb first became associated with domestic abuse in the 1970s, after which the spurious legal definition was cited as factual in a number of law journals, and the u. Civil engineering rule of thumb civil engineering community. Apr 01, 2016 some of the random thoughts are summed up here and i will try to uograde the list further. Thumb rules used in the construction by civil engineering. He is the author of four books including geotechnical engineering. If prepared by hand, not only the process would be laborious but also liable to errors. A mix of folk wisdom, common sense, shared experience, the advice of experts, and the kind of group think thats made websites like wikipedia so vital, rules of thumb is the impulsive compendium of 1,000 general principles that apply to every facet of life.
Wbdg is a gateway to uptodate information on integrated whole building design techniques and technologies. Ofcourse columns have to be designed in accordance to the total forces acting on the structure, but apart from that, it is essential for every civil engineer and architect to remember a few thumb rules so that they are prevented from making. Reinforcement estimation thumb rule method this simplest method is based on the type of structure and the volume of the reinforced concrete elements. Use the figures in this division when estimating the cost of. Shuttering costs is taken as 1518% of the total construction of the building. So never consider units while performing thumb rule. Road, kolkata700 001 updated upto 14122004 july 2004. What are the civil engineering rules of thumb for the. Accurate estimating and budgeting using unit assembly costs james h. Jun 15, 2018 in this channel you can learn about civil engineering update videos which are using generally in civil engineering. So please subscribe our channel for daily update civil engineering. Construction engineering design calculations and rules of thumb. Five questions a project manager should ask about every.
Some of the random thoughts are summed up here and i will try to uograde the list further. These civil engineering reference ebooks are authored by famous civil engineers and renowned writers in the field of civil engineering. Relevant background information is presented to the reader to give context as to when this rule can be applied. Pile design and construction rules of thumb elsevier. Important thumb rules for estimation in civil engineering. What is thumb rule in quantity and cost estimation of a. In detailed estimates, cost is worked out considering all the quantities in detail along with other factors. Rule of thumb cost estimating for building mechanical systems. Shuttering work is done to bring the concrete in shape. All steel members known will be quantified by total linear footage based on the plans and column schedules if available.
This estimate may be treated as the preliminary quick method estimate. This quantity would differ accordingly if a building has a basement. A cost estimate is needed to assess the cost of a construction project. Dutta, estimating and costing in civil engineering, 27th revised edition, new. Uncertainty rules of thumb this is a quick and dirty guide to computing uncertainties from measurements in the sp211 lab. Feb 18, 2017 sometimes a very rough high level engineering cost for a future project might be needed for budget approvals, initial planning, contracting strategy discussions, benchmarking of bid prices or negotiating with the engineering contractors. The most basic requirement for the preparation of a good bid is a precise and accurate estimate. Owners would like to know the cost before starting a project. For this highquality construction rate around 1500 to 2500 per square foot. In all civil engineering works using the basic rule of survering working from whole to part is important while doing any layout.
This is ok, as the estimator will use rules of thumb and historical data to fill in these gaps to produce their estimate. Design examples with stepbystep solutions, along with a generous amount of tables, schematics, and calculations are provided. Design rules of thumb in the early stages of a project, we are often asked how large structural elements will be before we have had a chance to perform the necessary computations. We must take an average of the consumption of each specific material. Visit our site to get information of construction civil engineering software, sheet, e books as well as news, tutorial, jobs, online courses etc. A method for developing quick approximate estimates of costs for generic actions for nuclear power plants, author ball, j r, abstractnote this document is a supplement to a handbook for cost estimating nuregcr3971 and provides specific guidance for developing quick approximate estimates of the cost of. Thumb rules for designing a column layout civil engineering. Method the most common sizing estimate typically estimates the software development effort and then factors in effort for other softwarerelated phases, based on work. Ruleofthumb cost estimating for building mechanical systems. Squarefootassembly squarefoot estimates often also occur early in the project, using historical data to determine current cost. The 2016 national construction estimator lists estimated construction costs to general contractors performing the work with their own crews, as of mid2016. In reinforcement detailed drawings and bar bending schedules, you usually come across the following terms concrete cover, clear cover, nominal cover and effective cover today i will answer.
Thus, one constantly runs into assertions like this. Commission on civil rights published a report on domestic abuse titled under the rule of thumb in 1982. A rule of thumb is a guideline that provides simplified advice regarding a particular subject. The rough cost could also be helpful to plan the manning level in the design office. What are the thumb rules for construction cost estimation. Thumb rules for civil engineers and basic knowledge. Pile design and construction rules of thumb presents geotechnical and civil engineers a comprehensive coverage of pile foundation related theory and practice. Design examples with stepbystep solutions, along with a generous amount of tables, schematics, and calculations are provided to. Because we can not estimate every time according to the individual requirement. Carters explanation of the rule of thumb is an example of erroneous modern day revisionist history. Contents show thumb rule to calculate the concrete volume with respect to area. Manpower productivity thumb rules will be useful to calculate the total manpower required for your next schedule. Thumb rules for civil engineers and basic knowledge civiconcepts. The construction industry uses a lot of rules of thumb, more than any other sector of technology.
Thank you for showing interest in buying our book technical calculation and estimators manhours manual you can buy the electronic v ersion of the manual containing all the figurest and other relat ed data at the following prices. Pdf scientific basis and rules of thumb in civil engineering. Application of thumb rule for the estimation of various building. What is thumb rule in quantity and cost estimation of a residential building in civil engineering. Nov 02, 2017 what is thumb rule, how we develop thumb rule for the calculation of different quantities and for the estimate of the building materials. Construction engineering design calculations and rules of thumb 1st edition. What is a good rule of thumb for estimating annual maintenance costs on. Rebar the thumbrule to follow is 120 kg of rebar per cum of concrete. The goal of whole building design is to create a successful highperformance building by applying an integrated design and team approach to the project during the. This paper examines a process for developing accurate project estimates.
My project is killing me 7 rules of thumb for the savvy. Cost estimating fundamentals and tricks of the trade. Civilax based to server in civil engineering provides etabs and sap2000 tutorials, civil engineering spreadsheets, civil engineering e books and many more civil engineering downloads. Its mission is to provide and support safe, reliable, and costeffective transportation options to improve livable communities and. In this channel you can learn about civil engineering update videos which are using generally in civil engineering. It acts as a binder which binds aggregate and sand together in concrete.
Aug 05, 2017 civilax based to server in civil engineering provides etabs and sap2000 tutorials, civil engineering spreadsheets, civil engineering e books and many more civil engineering downloads. Useful estimations and rules of thumb for optomechanics. In doing so, it defines the concept of rule of thumb and describes several examples of project management rulesof thumb. The rate of construction in this type of class is about to 1100 per square foot. In this construction video tutorial, one will learn the fundamentals of thumb rules which are applied in making the rough estimation of the various materials. A online respiratory for free estimating books where contractor users can download cost estimating books pdf through a huge estimating ebooks.
Thumb rules for civil engineers to estimate the shuttering area. Civil engineering books download free, ebooks, references. Accuracy of estimation depends upon the accuracy of drawing, specifications and assumptions. Automobile, bio, chemical, civil, electrical, electronics communications, industrial, instrumentation, marine. Ruleofthumb cost estimating for building mechanical. Accurate estimating and budgeting using unit assembly costs konkel, james h. This course is prepared for 3 rd mechanical and civil engineering students, at beirut arab university.
Methods of reinforcement quantity estimation in concrete. In lab, you measure some quantities which are subject to experimental uncertainty and use them to compute other quantities which are uncertain because they depend on the measurements. Manual for civil engineering works coal india limited civil engineering department 10, n. In thumb rules, the units are not the same when we compare to get the results. How we develop thumb rule for building estimations civil. Now it is important to know how much cement was consumed in 1 square feet area. What is thumb rule, how we develop thumb rule for the calculation of different quantities and for the estimate of the building materials. The invited paper opening the special section in 2016 was entitled scientific basis and rules of thumb in civil engineering. Engineering rule of thumb formulas engineering formulas pdf. It is a general principle that gives practical instructions for accomplishing or. To develop thumb rule for each construction material. The estimation or rule of thumb is concisely stated. There are different methods for estimating the quantities of reinforcement.
Construction engineering calculations and rules of thumb begins with a brief, but rigorous, introduction to the mathematics behind the equations that is followed by selfcontained chapters concerning applications for all aspects of construction engineering. Estimating by rules of thumb is used to produce a sizing estimate, when you do not have a lot of detail and are not contractually committed to the accuracy of the estimates. Thumb rule to calculate the steel quantity required for slab, beams, footings. Accurate estimating and budgeting using unit assembly costs. The rule of thumb for wifebeating hoax robert sheaffer.
Without accurate project estimates, project managers will lack the insight required to develop and manage a projects schedule, budget, and scope. Based on the authors experience as a pe, the book brings concise theory and extensive calculations, examples and case studies that can be easily applied by professional in their daytoday challenges. Many of the books below are standard textbooks of civil engineering which are taught and studied in universities and relavant departments. An approximate or rough estimate is prepared in a short time to get a rough idea of the cost.
Material estimation for construction works or projects deals with calculation of quantities of various materials, labors etc. In this article, we will go through the essential thumb rules to be followed for giving a column layout. Basic rules for design of column by thumb rule civil. Collected by tom parker for over 25 years, these are rules that are practical, quirky, and as entertaining to read as they are relevant to. How to estimate the cost of a steel superstructure for a. Sometimes a very rough high level engineering cost for a future project might be needed for budget approvals, initial planning, contracting strategy discussions, benchmarking of bid prices or negotiating with the engineering contractors. Cement is the most used material in any construction. Construction engineering design calculations and rules of. A corresponding equation, if applicable, is also included. The details of how the rule should be applied and when it is useful are also discussed. What is the rule of thumb in estimating the cost to build building. There are two types of error, which affect the accuracy and precision of your.