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Monday, November 30, 2015

Midland Asphalt Materials Inc is seeking a project estimator in Bloomsburg, PA location

Midland Asphalt Materials Inc, a renowned company that deals with road resurfacing technology and pavement maintenance, is inviting application for the post of Project Estimator for the office located at Bloomsburg, PA.

The candidate has to develop cost estimation for projects (from initial to completion stage), modify the construction projects, and analytics to help in managing project development process efficiently.

Duties & Responsibilities:

  • Scrutinize documents for creating time, cost, materials, and labor estimates.
  • Arranges and organizes logistics, acquisition, and allotment of materials.
  • Evaluates cost effectiveness of projects or services, finds the true costs toward the progression of the project.
  • Assesses constructability/production analysis of bid documents together with specifications, site conditions, contracts and building codes.
  • Make estimates for the management team toward planning, organizing and scheduling work, choosing vendors or subcontractors.
  • Get in touch with clients, vendors, personnel in other departments or construction operations to converse and prepare estimates and find solution for issues.
  • Execute components of project plan that is essential prior to construction work crews visit the jobsites.
  • Formulate estimates out of different types of bid documents and their major components together with components like bonding, insurance, indemnification, and damage clauses.
  • Participate with pre-bid and job site meetings; Carry outs and/or joins pre-construction, progress and other project/activities and any staff meetings
  • Locate and report real time cost data tracking real cost costs, schedules corresponding to bid proposals with the progression of the project.
  • Make sure that any relevant federal/state prevailing wage rates guidelines are considered, supervised, enforced and retained per project bid requirements.
  • Accomplishes other duties as necessary or assigned.

    In order to submit your application, send CV and salary requirements tomidland.resumes@midlandasphalt.com 

    Eligibilities:

    • Posses BS Degree in Engineering or Construction Management preferred.
    • Atleast 1-2 years’ experience of project cost estimating or working in a similar capacity.
    • Must abide by the company Safety and Loss Prevention Program.

    Other perks include medical, vision, dental and life & disability insurance.

    project estimator

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    Published By
    Rajib Dey
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Friday, November 27, 2015

How to generate reinforcement drawing in Autodesk Advance Concrete 2016

Md Humayun Kabir has made this nice tutorial for construction professionals. In this tutorial, Kabir shows some useful tips for creating reinforcement drawing in Advance Concrete 2016 developed by Autodesk. Advance Concrete 2016 is used to model reinforced concrete structures instantly. It supports Windows 7 64-bit and Windows 8 64-bit.

This construction program contains the following features :-

  • Modeling structural elements like Column, Beam, Slab, Isolated footing, Continuous footing, Pile as well as Stairs, Roofs.
  • Contain material & section libraries with several concrete, masonry and full bricks materials as well as parametric sections.
  • Create view automatically that includes plan views, elevation views, cross section views, isometric views, reinforcement views etc.
  • Create reinforcement drawing efficiently for manual reinforcement like stirrups, straight bars, polygonal bars, meshes etc.
  • Create documents like organizing drawings on layout, inserting frame & title block, generating BOM for concrete volume & formwork area.
  • BIM integration with Graitec compatible software and Revit, IFC 2x3 export/import.
  • Structural analysis for finite element.

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Rajib Dey
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Thursday, November 26, 2015

Detailed Process for effective slab reinforcement

This construction video will highlight the detailed process for complicated slab reinforcement. All steel bars are connected following the design details. Here the concrete ratio is 1:2:4. This video is very useful for Civil Engineering students as well as various structural engineering professionals.

The slabs containing ratio of longer length to its shorter length (Ly/Lx) larger than 2 is known as one way slab or else as two way slab. In one way slab main reinforcement is equivalent to shorter direction and the reinforcement equivalent to longer direction is defined as distribution steel. In two way slab main reinforcement is rendered alongside both direction.

Detailing Requirements of RCC Slab as per IS456: 2000

a) Nominal Cover:
For Mild exposure – 20 mm
For Moderate exposure – 30 mm
However, if the diameter of bar is less than 12 mm, or cover may be decreased to 5 mm. Therefore for core reinforcement up to 12 mm diameter bar and for mild exposure, the nominal cover will be 15 mm.

b) Minimum reinforcement: The reinforcement in either direction in slab must not be lower than
• 0.15% concerning the total cross sectional area for Fe-250 steel
• 0.12% concerning the total cross-sectional area for Fe-415 & Fe-500 steel.

c) Spacing of bars: The utmost spacing of bars must not surpass
• Main Steel – 3d or 300 mm whichever is lesser.
• Distribution steel –5d or 450 mm whichever is lesser Where, ‘d’ denotes the operative depth of slab. Note: The least clear spacing of bars must not be lower than 75 mm (Preferably 100 mm) even if code does not suggest any value.

d) Maximum diameter of bar: The maximum diameter of bar in slab, must not surpass D/8, where D denotes the total thickness of slab.


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Published By
Rajib Dey
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Friday, November 20, 2015

Detailed Process for effective slab reinforcement

This construction video will highlight the detailed process for complicated slab reinforcement. All steel bars are connected following the design details. Here the concrete ratio is 1:2:4. This video is very useful for Civil Engineering students as well as various structural engineering professionals.

The slabs containing ratio of longer length to its shorter length (Ly/Lx) larger than 2 is known as one way slab or else as two way slab. In one way slab main reinforcement is equivalent to shorter direction and the reinforcement equivalent to longer direction is defined as distribution steel. In two way slab main reinforcement is rendered alongside both direction.

Detailing Requirements of RCC Slab as per IS456: 2000

a) Nominal Cover:
For Mild exposure – 20 mm
For Moderate exposure – 30 mm
However, if the diameter of bar is less than 12 mm, or cover may be decreased to 5 mm. Therefore for core reinforcement up to 12 mm diameter bar and for mild exposure, the nominal cover will be 15 mm.

b) Minimum reinforcement: The reinforcement in either direction in slab must not be lower than
• 0.15% concerning the total cross sectional area for Fe-250 steel
• 0.12% concerning the total cross-sectional area for Fe-415 & Fe-500 steel.

c) Spacing of bars: The utmost spacing of bars must not surpass
• Main Steel – 3d or 300 mm whichever is lesser.
• Distribution steel –5d or 450 mm whichever is lesser Where, ‘d’ denotes the operative depth of slab. Note: The least clear spacing of bars must not be lower than 75 mm (Preferably 100 mm) even if code does not suggest any value.

d) Maximum diameter of bar: The maximum diameter of bar in slab, must not surpass D/8, where D denotes the total thickness of slab.


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Published By
Rajib Dey
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Thursday, November 19, 2015

Strength of Doubly Reinforced Concrete Beam (compression steel not yielding)

Some useful construction tips to calculate the nominal flexural strength Mn concerning the reinforced concreterectangular section. It is illustrated in figure 9-3(a).

The provided section is reinforced twice with steel in tension and compression zone of the section. The guidelines of ACI-318 is followed for calculating the nominal flexural strength Mn. The highest value of applicable strain at the utmost concrete fiber is supposed to be 0.003.

For fc' grerater than 4000 psi the value of ß1 is calculated as given below;
ß1 = 0.85 - 0.05 {( fc' -4000)/1000} = 0.8
Assume that the compression steel has yielded when the strength is reached (strain in concrete is 0.003).


Given that tension steel consists of 4 bars of #10 (dia 1.27 in.).
Area of one bar of #10 = 1.27 in2.
As = 4-#10 bars. = 4 (1.27) = 5.08 in2.


Area of compression steel , As' = 2-#7 = 2(0.6) = 1.2 in2. The internal forces acting on the section shown in figure 9-3(c) are calculated as given below;
Cc = 0.85 fc' ba = 0.85 (5) (14) a = 59.5 a 
Cs = (fs' - 0.85 fc') As' = (60 - 0.85*5) 1.2 = 66.9 kips
T = As fy = (5.08) (60) = 304.8 kips


Applying static equilibrium, we get Cc + Cs = T;
59.5 a + 66.9 = 304.8
therefore depth of stress block, a = (304.8- 66.9)/59.5 = 3.998 in Depth of neutral axis x = a / ÃŸ1 = 3.998/0.8 = 4.997 in



Strength of Doubly Reinforced Concrete Beam

Strength of Doubly Reinforced Concrete Beam

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Published By
Rajib Dey
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Tuesday, November 17, 2015

How to estimate a Civil Engineering Project

This construction video will provide step-by-step guidance for creating estimates for various Civil Engineering Projects.

The estimate includes detailed as well as abstract estimation.



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Published By
Rajib Dey
www.constructioncost.co
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Monday, November 16, 2015

Brief overview of Pin-jointed Truss and different Analysis methods

Truss belongs to a structure that contains straight members to build up one or more triangular units. Generally Pin-joints are used to tie the members of truss at the end. The joints concerning a truss are defined as nodes. External forces and reactions can only function at the nodes and produce forces in the members to be axial forces (tensile or compressive).

If all the members and nodes are positioned inside a two dimensional plane, it is called plane truss. If a truss consists of members and nodes and expands into three dimensions, it is called space truss.

Trusses are inherent parts of various structures like bridges, roof supports, transmission towers, space stations etc.

Truss are defined as:-

a) Statically establish; all the unidentified forces (support reaction and member forces) can be specified with the use of equations of static equilibrium. (provided m+r = 2j).

b) Indeterminate; equations of static equilibrium can’t solely find out unknown forces, provided m+r> 2j.

c) Unstable; not appropriate to bear load; provided m+r < 2j; Where ‘m’ denotes member’s no in a truss; ‘r’ denotes number of reaction components; And ‘j’ denotes number of joints in a truss;

Analysis methods:

Two methods are available for determining the forces in the members concerning a truss;

(i) Methods of Joints : This method focuses on the equilibrium of the all joints concerning the truss. There exists two equations of static equilibrium ?Fx & ?Fy.So one has to start with the joint containing lower than 2 unknown forces. Go through problem 3-1 (civilengineer.webinfolist.com)

(ii) This method is useful while finding out the forces in a few members. Under this method, a fictitious is passed over the members in which forced should be set and to obtain unidentified forces, select the equilibrium of the left hand side or the right hand side of the truss.Go through problem 3-2 (civilengineer.webinfolist.com)

Bubble deck

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Rajib Dey
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Thursday, November 12, 2015

Some useful construction tips for laying brick columns & soldier course

The following construction video is presented to provide some useful tips for constructing a brick column by applying some effective brick laying patterns & soldier course.

Brickwork is masonry constructed with a bricklayer. Generally, rows of bricks are termed as courses which are placed on top of one another horizontally with equally sized bricks to construct a brick wall.

The word course is more or less applied along with unit masonry like brick, cut stone, or concrete masonry units ("concrete block").

Video How To Lay Brick Columns and Soldier Courses


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Rajib Dey
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Tuesday, November 10, 2015

Make precious design calculation with RC-spreadsheets package version 4B.2

RC-spreadsheets package version 4 are designed by adhering to both Eurocode 2 and BS 8110-1:1997. The most updated version alias 4B.2 contains enhancements regarding to punching shear, column design and pilecap design as well as resolving bug.

The advanced engineer will be greatly benefitted by obtaining the transparent and precise design calculations.

The post-graduates and newbie engineers can easily gather knowledge on concrete design and familiar with analyzing 'what if' scenarios.

The individual user can solve their queries by pursuing through the cells to recognize the logic applied.



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Published By
Rajib Dey
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Monday, November 9, 2015

A position is vacant for Senior Engineer in Houston, Texas

Bechtel, the globally recognized engineering, project management, and construction company, is seeking a Senior Project Engineer on permanent basis. The location of the job will be Houston, Texas, United State.

Job Role:

  • Plans, schedules, manages, and organizes complete level of engineering work for a global business unit generally in one discipline in a project or staff group. Accomplish work for customary engineering practice but may involve complicated features like settling conflicting design requirements, inadequacy of conventional materials and/or difficult coordination requirements.
  • Accomplishes work by applying Bechtel Standard Application Programs (BSAPs) and proper 2-D and 3-D computer aided design and computer aided engineering (CAD and CAE) tools.
  • Plans, coordinates or produces equipment or work specifications, bid evaluations and award recommendations for equipment.
  • Organizes engineering efforts in areas entrusted with specialty and other engineering groups or disciplines, together with the client, suppliers, and contractors and between other groups.
  • When delegated, undertakes a lead technical role over other engineers or project subgroups for executing particular tasks.
  • Provides support in on-the-job-training of assigned personnel as well as input for their performance evaluations.
  • Drafts letters independently to vendors and clients.
  • Evaluates bid analyses and makes recommendation.
  • Composes or supports in preparing conceptual studies, designs, reports or proposals.
  • Accomplishes or helps in solving problem analysis and original design.
  • Prepares as well as offers support in generating cost estimates, quantity take-offs and staffing requirements for proposals, forecasts and change orders.
  • Evaluates and verifies work of subordinate engineers.
  • Supports the formation of a work environment that cultivates ingenuousness, faith, communication, teamwork, empowerment, innovation, and satisfaction.

Senior Engineer
Image Courtesy: suproindia.com

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Rajib Dey
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Saturday, November 7, 2015

How to use ETABS 2015 for designing a Reinforced Concrete Building efficiently

This is an exclusive construction video that demonstrate how to use ETABS 2015, the incorporated software package toward the structural analysis and design of buildings, to create the design of a reinforced concrete building having ramp and wall.

This most updated version of construction software contains superior 3D object based modeling and visualization tools, ardently rapid linear and nonlinear analytical functionalities, advanced and expansive design capabilities for unlimited materials, and insightful graphic displays, reports, and schematic drawings which facilitate the users to instantly and precisely resolve and understand analysis and design results.

We Provide Videos Tutorial for Civil Engineering Relating to Structural Detailing, Structural Modeling, Analysis and Design Software such as: CSI ETABS, CSI SAP2000, CSI SAFE, CSI Column, Autodesk Robot Structural Analysis, Autodesk Revit Structure, Autodesk AutoCAD Structural Detailing, AFES Foundation Design Software, Mathcad for Civil Engineering, spColumn, RCM ACI Builder and ACCOMS GEAR and GRASP.


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Rajib Dey
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Friday, November 6, 2015

How to design, model and analysis of Space Truss with SAP2000-19

This is an exclusive presentation for Civil Engineering students. By going through this construction video, one can learn how to create the design, modeling and analysis of Space Truss alias Triangular Arch Truss through SAP2000-19, an exclusive integrated, productive and practical structural program.

As defined by architecture and structural engineering field, a space frame or space structure refers to a truss-like, lightweight rigid structure built up with interwoven struts in a geometric shape. Space frames are applied to range vast areas by means of few interior supports.

Similar to truss, a space frame is endurable due to the constitutional hardness of the triangle. Adjustable loads (bending moments) are delivered as tension and compression loads along the length of each strut.

    In a space truss or space frame structure, there exists a three-dimensional truss to combat with lateral forces. In a normal truss, horizontal, vertical, and diagonal members function on a single plane whereas a space truss applies diagonal connections which seperate outside of the plane.

    A space truss generally appears as various interlocking pyramidal outlines. A tetrahedron shape belongs to the elementary space truss, containing six members which converge at four joints.

    Structural Analysis: Space Truss - Download in PDF


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Rajib Dey
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Thursday, November 5, 2015

Bubble deck slab system can reduce your building cost significantly

Bubble deck slab belongs to the kind of slab where bubbles or ellipsoid, formed with waste plastic material, are used to replace some portion of the concrete to lessen the self-weight of the structure.

This type of slab is designed by following the Euro and the British codes. In 1990, JORGEN BREUNING had developed a new system where ellipsoids are locked amid the top and bottom reinforcementmeshes and a natural cell structure is formed similar to a solid slab.

The slab is made having the same features of a solid slab, but contains significantly less weight because of the reduction of unnecessary concrete.

Bubble deck slab system was first introduced in The Millennium Tower in Holland.

Advantages of Bubble Deck Slab System:

  • Preserves 30 to 50 % weight than a equivalent solid slab – equal stiffness.
  • 20% concrete lessening in other components.
  • The decreased weight of the slab will lead to a modification in design to longer spans and/or condensed deck thickness.
  • It can be easily used with seismic as it minimizes the total weight of the building.
  • Minimize concrete usage – 1 kg recycled plastic substitutes 100 kg of concrete.
  • With this system the cost of the building is decreased by 8 to 10 %.

Bubble deck
Image Courtesy: blog.archpaper.com

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Rajib Dey
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Wednesday, November 4, 2015

An effective road paving method to construction a long-lasting road or walkway

This construction video focuses on some exclusive process for efficient road paving. Road pavement belongs to the long lasting surface material set on an area projected for defending sustain vehicular or foot traffic, like road or walkway.

Now-a-days asphalt or concrete become very popular to set on a compacted base course. Permeable paving methods are also undertaken in recent times toward low-impact roadways and walkways.

There are various types of road pavements which range from Asphalt, Concrete, Composite Pavement, Recycling, Bituminous surface, Gravel Surface, Other Surfaces like Brick, cobblestone, sett, wood plank, and wood block.

Asphalt pavement is most popular all through the globe. Under this method a paving team is formed. The trucker driver is considered as the first person in the paving team who fulfils the asphalt into the paver's hopper.

Two individual conveyors together transmit the material via the machine to the backside, where it is allocated consistently amid paver and screed through two separately controlled rotating screw conveyors. While paving a standard mix, the temperature must be over 110 °C to arrange adequate time for compaction.


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Rajib Dey
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Tuesday, November 3, 2015

How to design a single reinforced concrete beam

This construction video will be very helpful for Civil Engineering Students to learn how to create the design concerning a singly reinforced concrete beam through step-by-step processes.

Reinforced concrete belongs to one of the primary building materials applied in engineered structures and it provides the following benefits :-

  • Reinforced concrete contains superior compressive strength with regards to most other materials utilized in construction.
  • Good fire resistance capability as compared to steel. It can defend against fire for a long period. It is also weather resistant.
  • It is endurable and offers low maintenance cost.
  • To some specific sorts of structures like dams, piers and footings, it can be the most cost effective structural material.
  • It can be cast to accommodate with the desired shape and extensively applied in pre-cast structural components.
  • It complies with unyielding members through least apparent deflection.
  • Yield strength of steel is about 15 times the compressive strength of structural concrete and well over 100 times its tensile strength.
  • Formability.


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Rajib Dey
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Monday, November 2, 2015

Pavers Mate (Block Paving Sand Screed Tool) is a useful construction tool for domestic block paving

Pavers Mate is an easy to use & useful construction tool that is specifically developed to create the exact layer each time toward domestic block paving as well as minor commercial area jobs through the application of sand screed. Pavers Mate can also facilitate the placing of calibrated paving slabs with a cement screed. While placing paving on a cement screed, the Pavers Mate can be used to set any size area.

Pavers Mate contains a 930mm Polypropylene screed and with this one can place 900 mm long paver. The additional 30mm of the tool is exceeded to make sure that the paver going to be placed contains a full layer and make the process simpler for the user to screed again for the next paver.

The screed is changeable with sliding up or down to the desired depth based on the measuring increments on the back of the screed for arranging to the exact depth and tightening the wing knobs/adjusters manually to clamp it into place.

After completing this simple step, set the ware plate end of the level on the datum paver and provide good pressure against the paver and do not provide any pressure on the other end Drag across the surface to generate the accurate layer every time.

This tool excludes rocking pavers and minimizes cracks which may generally occur with irregular layers.

Some exclusive features of Pavers Mate:


  • Place paving smoothly & easily.
  • Generate the accurate patio.
  • Lightweight.
  • Work with all types of calibrated pavings.
  • Removes Rocky Paving.


Link for purchase bricky.com


Block Paving Sand Screed Tool
Image Courtesy: bricky.com

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Rajib Dey
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