Calculation of Stiffness in Structural elements

Given below is a floor plan of a building. The red lines running East-west are beams supported by the girders spanning North-South between columns. The floor system is 120 mm thick normal weight concrete floor. The floor finish and mech loads on the floor is 3 kPa. The live load on the floor is 5 kPa. All beams have cross…

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1. 1. State the primary load cases to be considered for design. ANSWER: Dead Load (IS-875: PART1) Live Load (IS-875: PART2) Wind Load (IS-875: PART3) Snow Load (IS-875: PART4) Seismic Load (IS 1893: 2016)     2. What is a One – Way slab? ANSWER: One way slab is the slab in which the ratio of its longer…

1. 1. How will you assign the Circular section to a column? ANSWER: Go to the properties panel. Click on the define option. Select the circular section from the list. Specify the desired diameter of the circular section. Click on add and a circular section of the specified diameter will be created. Now, select the section…

1. 1. Write the steps involved to upload a .std file through web mail? ANSWER:   Open the staad software and locate the share option available on the intro screen. After clicking on the share button, select send mail option. Then, browse for the. std file on your machine and hit send.      2. Name…

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1. Model the isolated footing provided in the week 11 challenge on SAFE. Analyze and design it to verify the size, depth, and steel provided as per calculations. 2. A column of size 600x600 carrying an unfactored gravity load (DL+LL) of 1175 KN is to be supported on a pile cap, which ultimately transfers the load to the…

Design a square footing for a column size of 400x400. The compression axial load for the load combination of (1.5 DL + 1.5 LL) is 2000 KN. The safe soil bearing capacity is 150 KN/m2 at a depth of 2 meters below E.G.L. Participants are free to go for either a tapered or stepped footing. Besides the total axial load, also…

The architectural drawings for a G+7 residential building in zone 5 have been provided. The floor plan is the same for all 7-floor levels. Possible column positions have also been provided. Conceptualize a framing plan layout and then model the building in Etabs. The following architectural drawings have been provided:…

The ETABS file for a G+6 building is provided. Run the analysis and design of the RCC shear walls (shown in the tabs model). The following challenge deals specifically with the shear wall of size 300x1500 at grid A-11 in the structural model. Extract values of longitudinal steel ratio, boundary element length, and shear…

The ETABS file for a G+4 building is provided. Run the analysis and design of the RCC Moment Resisting Frame. The following challenge deals specifically with two columns at the following grid intersections. 3A 3B Provide details of longitudinal reinforcement for the two columns, from foundation to terrace level. Sketch…

Detailed design of beams in Etabs 2018.The ETABS file for a G+4 building is provided. Run the analysis and design the RCC Moment ResistingFrame. The following challenge deals specifically with two continuous beams in the 1st floor.         1) 3 span continuous beam along grid A       …

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Model a 25 story building on ETABS with structural properties as specified below. Ground floor or plinth floor level can be taken at a height of 1.5 metres from the base. Each of the successive 25 storeys has a storey height of 3 metres. Structural Element Sizes  Beams : 300 × 400 mm  Columns : 800 ×…

Question 1:The building shown, 20 × 35 m in plan, has columns on a 5 × 5 m grid and shear walls (with dimensions shown in m, 250 mm in thickness) in three alternative arrangements, (a), (b), (c), all with the same total cross-sectional area of the shear walls. Compare the three alternatives, taking into account…

Question 1: Comment on the layout of the framing plan concerning earthquake resistance in the two horizontal directions X or Y (dots are columns, lines depict beams). Look into aspects of symmetry, redundancy, and bi-directional stiffness and ductility.     ANSWER:   Aspect of Symmetry When we observe the…

Question 1:   A five-story structure with 5 translational DOF is shown here. Each story has mass ‘m’. The eigenvalue problem has been solved and the 5 periods of vibration Tn and their corresponding mode shapes, φn has been derived.     SOLUTION:         As…

Question 1: Compute lateral stiffness of the one-story frame with an intermediate realistic stiffness of the beam. The system has 3 DOFs as shown. Assume L = 2h and Elb = Elc                           Question 2: For the following structures: Determine…

1. What is the mode of failure or damage of the beams in the figure above? Are the damages repairable? Elaborate   QUESTION ONE a) OBSERVATIONS: Reinforcement at the bottom portion of the beam is exposed due to the crushing of concrete. The beam top is intact and the cracks have developed from the bottom towards the…

1) Use the Architecture/ Structure Project file developed by you in Week 6 to 8. Export the Revit architecture and structure model to Navisworks Cache file following the export settings discussed in class.   STEPWISE PROCEDURE: Before starting the Navisworks software, you need to open your Revit model and convert…

1) Using Dynamo creates a set of sinusoidal points and create a curve and create a surface out of the curve.   STEPWISE PROCEDURE: Open The Dynamo linked to your Revit File Open an Architectural template in Revit. Go to the Manage tab and click on the Dynamo logo to enter the Software. A typical Dynamo intro page…

1) Use the shortcut keys in Revit discussed in class to complete the following tasks and list them below           a. Using 3D model create a section box           b. To create similar doors and windows in a floor plan layout         …

1) What are HVAC systems? Why are they essential in the modeling of buildings?   What are HVAC systems? HVAC (Heat Ventilation and Air Conditioning) systems are mechanical setups arranged for buildings to maintain the suitable temperature within the structures so as to provide environmental ease to the building inhabitants…

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1) Open an architectural template. Using the Manage tab set project base point and project shared coordinates for the project.   COMPLETE STEPWISE PROCEDURE TO SET UP SHARED COORDINATES AND PROJECT BASE POINT IN REVIT: Open up a new Architectural template Open the Revit software. Click on the "new" option under the…

1) Why are building codes or standards essential for the modeling/ efficiency of drawings in Revit?   ANSWER: Before getting into why building codes are essential for modeling efficiency in Revit, let us first look at what building codes actually are? So, building codes are formal norms and regulations that are supposed…

1) Based on the project saved from Week 3, proceed from the First Floor Level. Model a Ceiling from the architecture tab above the walls at the first-floor level.    COMPLETE STEPWISE PROCEDURE TO TO INSERT A CEILING INTO YOUR FLOOR PLAN IN REVIT: Open the floor level you want to add a ceiling to from the project…

1) Use the project file created from Week 2. Use it for this assignment. Based on your layout from week 2, use the floor tool under the architecture tab and select the floor with appropriate material and thickness using the property browser to create a layout in the Ground floor level. Align the floor plan with grids created…

1) What is BIM? Summarize the features of BIM and the benefits of using BIM over 2D CAD tools.   BIM refers to "Building Information Modeling" which means documenting every piece of information related to a building project on a single platform. When we aim to start a building project, there are loads of information…

1) From the file menu, create a new project (Structural / Architectural / Construction template ) and name the project appropriately.   STEPWISE PROCEDURE: Open the Revit software and wait for it to load. Go to the "File" tab and click on "New". After choosing the new option, click on the new project menu. A new project…

AIM: TO CREATE A FULL-FLEDGED 3D RENDERED MODEL OF A RESIDENTIAL BUILDING USING AUTOCAD.   INTRODUCTION:  AutoCAD is pretty functional when it comes to 2d designing and drafting of various structures including residential apartment buildings. All the tools and commands within the software let you create every…

1. Creating a 3D-Elevation of a Room Plan with Pre-defined Dimensions and Two Window  Designs on Two Faces of the room.   STEPWISE PROCEDURE: Create the plan view of the room with a standard room size Use the "Rectangle" command and select the dimensions option to give them out to out length and breadth of the…

1. Creating a Small Furniture Element in Three-Dimensional Layout to Showcase its Surface Features.   STEPWISE PROCEDURE: Create a rectangle of the size 3'x3' in the XY-3D plane. Extrude the same rectangle in the negative Z-plane. While extruding the object, give the extrusion height as -2'-6". Give an offset of 6"…

1. Creating two viewports vertically aligned in a predefined Architectural template with the standard paper size to accommodate the plan and a section of the residential building previously designed.   STEPWISE PROCEDURE:   Select the template from the list given within the AutoCAD predefined layouts. Switch…

1. DRAFTING A KITCHEN LAYOUT WITH THE STANDARD PLATFORM DESIGN INCLUDING ABOVE AND BELOW THE COUNTER PLANS.   A) Designing Below Counter Plan   Draw the outer line plan with the correct dimensioning.   Design the platform with the standard style to accommodate the kitchen essentials.    Draw the…

1. CREATING THE STANDARD TITLE BLOCK TEMPLATES OFTEN USED WHILE SUBMITTING THE ARCHITECTURAL DRAWINGS.   STEPWISE PROCEDURE Title Block One: Create the Table Layout using the rectangle command and draft all four sides of the table. Using line, offset, and extend commands, draw the inner structure of the table to complete…

AIM:  TO DESIGN AND DRAFT A RESIDENTIAL BUILDING FOR THE GIVEN PLOT SIZE. AND TO CREATE A SECTION AND FRONT ELEVATION SHOWCASING ALL THE NECESSARY DETAILS OF THE BUILDING. ALSO, TO PROVIDE RELEVANT BASIC STRUCTURAL DRAWINGS FOR THE SAME.   INTRODUCTION:   Plot size is very important from the design point…

1. Create the Plan and Sections as shown in the Figures. Use proper dimension techniques and dimension styles to document the project. Assume the sizes of the doors and windows as per construction standards. Refer to sections for stair details if required.   ANSWER:   STEPWISE PROCEDURE   1. DRAFTING THE…

  1. Draw the elevation and details of a wardrobe as shown in the Figure below. After sketching, you need to provide the dimensions and text with the use of layers. Use proper text styles and dimension methods to document it. Also, assume dimensions, wherever needed. Note: All dimensions are in mm.   STEPWISE…

AIM: TO TABULATE COLUMN SCHEDULE DETAILS. TO CREATE A SCHEDULE FOR WINDOWS INCLUDING ALL THE NECESSARY DETAILS REQUIRED AT THE SITE. TO LIST ALL THE ARCHITECTURAL DRAWINGS FOR A COMPLETE BUILDING PROJECT. AND TO CREATE A BEAM SECTION AS PROVIDED IN THE QUESTION.   INTRODUCTION:  Autocad allows you to enter the…

  AIM:  TO CREATE A RESIDENTIAL LAYOUT OF A BUILDING WITH ACCURATE POSITIONING OF STAIRCASE AND PRECISE PROVISION OF DOORS TO FACILITATE ACCESS INTO DIFFERENT ROOMS AS PER THE MEASUREMENTS GIVEN. TO CREATE A SEATING PLAN TO ACCOMMODATE FOUR CHAIRS AND A CIRCULAR TABLE IN SYMMETRY WITH THE POSITIONS OF ALL FOUR…

  AIM: To Create Different Constructional Geometries Using Chamfer, Fillet, and other Relative Commands in Autocad.   INTRODUCTION: Chamfer and Fillet are two of the often-used commands used while carrying out civil drafting works. Hence, it is important to know how and when to use these commands as…

  AIM: CREATION OF FOOTING DETAILS, A FLOOR PLAN, AN ISOMETRIC VIEW OF STEPS, AND WALL USING THE RELEVANT COMMANDS IN AUTOCAD.   INTRODUCTION: AutoCAD consists of many tools and commands that can be invoked as per the drawing requirements. Architectural as well as structural components can be drawn very easily…

AIM: TO CREATE DIFFERENT GEOMETRIES USING COORDINATE SYSTEMS IN AUTOCAD.   INTRODUCTION: AutoCAD allows you to use two main coordinate systems to create the needed drawings at your ease. The names of the two coordinate systems are Absolute and relative coordinate systems. The relative coordinate system is further…

AIM: TO PLAN A G+1 RESIDENTIAL BUILDING IN ACCORDANCE WITH THE VASTU SHASTRA RECOMMENDATIONS. AND TO LIST THE GOOD FOR CONSTRUCTION (GFC) STRUCTURAL DRAWINGS REQUIRED AT THE SITE FOR EASE OF CONSTRUCTION. ALSO, TO CALCULATE THE LOADS DUE TO DIFFERENT STRUCTURAL COMPONENTS OF THE HOUSE THAT WE HAVE PLANNED.   INTRODUCTION:…

Calculate the Concrete Mix Design for M35 grade concrete with fly ash & M50 grade concrete without Fly ash                                                            …