Modelling of 25 storey building with the specified properties using ETABS

1.1 Circular section can be assigned using below option   1.2 Unit system In general, we can provide unit system while starting the model as below   1.3 Bay frame inputs Geometry > Structure wizard > Frame models   1.4 Codal standards incorporated in Staad Pro   1.5 Design compressive strength…

Modeling done & screenshots provided below.   (a) Geometry of member   (b) Section of member   (c) Material of member   (d) Support of member   (e) Loading of member   (f) Analysis of member   (g) BMD of section (for 50kn point load)   (h) SFD of section (for 50kn point…

Aim: To find section classifications for given steel sections, deflection values and beam strength for the given data.   1. Section classification ISMB500 b=180mm t=17.2 b/Tf = 10.46, Which is under class-2 limit of 10.5. This is Compact section.   ISMC200 b=75mm t=11.4mm b/Tf=6.57, Which is under class-1 limit…

Aim: To calculate effective length factors, compression member, laced column & battended column for the given problem statement.   1. Determination of effective length of column factor (a) Data: Column height = 10 meter Restraints: Restrained perpendicular to frame (Z-direction) + Free in Horizontal direction…

Aim: To calculate net area of given sections at critical failures, design strength of Sag rods & Tension member. 1. Net area calculation for tension member design (a) 20mm thick plate & 20mm bolt size An = (260x20) - (4x20x20) = 3600 mm2   (b) Plane 1 An = (260x20) - (2x20x20) = 4400 mm2 Plane 2 An = (260x20)…

1. Efficient truss system: Truss-A is Pratt truss and Truss-B is Howe truss in use. Pratt truss develops tension in diagonal members and compression in vertical members. Howe truss develops compression in diagonal members and tension in vertical members. Technically, the longer members are critically risk in buckling during…

Aim:To sketch a G+1 floor residential plan accroding to vastu shastra, and list down the names of the sructural drawings. Procedure: Vastu shastra is the ancient indian science of architecture and acts as a guideline to design your home in the way that enhances positive energy. Our nature is abundant with powerhouses of…

1. Concrete mix design for M35 with fly ash Data required: Grade designation: M35 with 10% of flyash Type of cement: OPC 43 grade conforming to IS 8112 Maximum nominal size of aggregate: 20mm Exposure type: Very Severe  Minimum cement content: 340 kg/m^3 Workability: 100mm slump Method of concrete placing: Pumping…

Project 2 :- Creating a 3D rendered model for a Residential Building in AutoCad AIM: To create the 3D rendered model for a Residential building in AutoCad. Introduction :- 3D CAD, or three-dimensional computer-aided design, is a technology for design and technical documentation, which replaces manual drafting with an automated…

1. Aim :- To Create a 3D Isometric View of the building with plan and elevation given.     Procedure :- Click on AutoCAD application and open this application Type QNEW in command bar and enter Select default setting as Imperial In default…

1. Aim: To draw the 3D wireframe model as shown in the figure. Introduction: The 3Dwireframe model given is a furniture equipment in the house. The 3d wireframe model is drawn in different coordinate systems such as rectangular coordinate system, spherical coordinate system, relative coordinate system and cylindrical…

Aim: To create layout of the Plan and Section A of the project in Challenge 7 as shown in the figure above, in AutoCAD. Introduction: The layout is created in AutoCAD using the template Tutorial-mArch.dwt in a scale 1:50 that given in the Figure. The procedure is explained in detail with diagrams…

1.PROBLEM 1 Aim :- To create the kitchen layout and to provide the hatch. Introduction :- The general commands used for drawing the building is as follows : 1. Line 2. Polygon 3. Rectangle 4. Circle 5. Erase 6. Copy 7. Trim 8. Mirror 9. Offset 10. Extend 11. Array 12. Move 13. Rotate 14. Dimension 15. Text…

Aim: To create templates and convert as shown in the figure using AutoCAD. Procedure: STEP:-1 In the command prompt type UNITS and press enter. Select the required units as desimal and select the required insertion scale. Select layer settings from ribbon tab. From the layer settings tab select create layer option. Enter…

Aim :- To Design and Draft a layout of a Residential Building having plot size of 60' X 20' ( 18.3m X 6m ), facing East-direction using AutoCAD.   Section 1 :- Architectural Drawing Site Plan Layout Ground Floor Plan First Floor Plan Elevation Section View Section 2:- Structural Drawing :- Column Layout Plan…

Aim: To model and design the superstructure frame elements using ETABS and slab design using SAFE software. And to provide design results for longterm effects & wind load optimization technique.   Flow chart for Tall building analysis and design with ETABS software: 1. Architectural plan study & Column shear…

Aim: To analyse and to design the composite high rise building using ETABS. And to design the composite deck profile using Comflor software.   Flow chart for composite high rise building analysis and design: 1. Architectural plan study & Column shear wall position marking 2. Steel beam alignment marking (considering…

Aim: To manually calculate the total imposed loads, dead loads acting in a tall building based on given parameter. To assume the dimensions of the structural member for the given spans and load magnitudes. Also to calculate the earthquake base shear at the foundation level for the given site criteria.   Data: Material…

Aim: To draw the preliminary scheme for the horizontal and vertical allignments for the proposed bridge. And to model the bridge with relevant stages from diaphragm to live load application and to design the concrete, prestress and steel components with respect to relevant indian standards.   Since the bridge is symmetrical,…

Aim: To investigate the given site condition of the proposed bridge construction. And to choose the more suitable bridge form superstructure. To model the form in LUSAS with all given loadings of train & shown imposed loads.   Calculation of total horizontal length required for the bridge to connect two abutements:…

Aim: To model a tall building in ETABS for the given architectural drawing along with the given parameters and to design their frame elements.   Procedure in ETABS modeling: a) Column spacing and wall spacing marking in the architectural drawing b) Story assignment   c) Grid assignment   d) Material assignment…

1. Answer: Water cement ratio = Weight of water / Weight of cement Assuming 1 liter of water = 1 kg W/C ratio = 50/250 = 0.2   Cement weight = 250 kg Sand weight = 250 kg Aggregate weight = 500 kg So, the mix ratio 250 : 250 : 500 which is 1:1:2 1:1:2 mix ratio is equivalent to M25   We can not allow this mix…

Aim: To model a Bat shaped Tensile membrane in RFEM and to perform form-finding & Cutting pattern analysis with design.   Step-1: Create a new project with enabling 'Form finding' & 'Cutting pattern' options.   Step-2: Create nodes for the membrane modeling   Step-3: Draw lines connecting the nodes…

Aim: To model a Multiple mast tensile structure and to do form-finding analysis   Step-1: Project naming and creation using "New Project"   Step-2: Switch on the RF-FORM FINDING TOOL     Step-3: Provide Nodes at required points using "New Nodes" option   Step-4: Connect the nodes with analysis…

Aim: To model and to analyse G+3 building with relevant seismic inputs based on the given data, using ETABS software. Also for the resultant column reactions, Deep foundations have to be designed with Piles and pilecap using SAFE software. Also Typical floor structural plan, Column rebar, Beam rebar, Pilecap rebar and…

Aim: To manually calculate the spread footing dimensions and reinforcement details with respect to limit state design of soil and structure.   Calculation of Gross soil pressure: Unfactored load = 2000/1.5 = 1333 kN Assume thickness of footing (t) = 0.5 m Depth of footing as given in data (h) = 2 m, So soil surcharge…

Aim: To create the most feasible structural framing plan with all seismic requirements from the given architectural drawing. and to model the framing plan into G+7 building using ETABS.   Preparation on framing plan & Modelling with ETABS: Step-1: Based on the given architectural drawing, the probable column sizes…

Aim: To analyse the given Model and to extract the reinforcement details for specified RC wall. and to detail the RC wall using AUtoCAD with compiance to ductility IS 13920-2016 standard.   Extracting Design details from ETABS: Step-1: Analyse > Check model Using above toolpath, the given model is checked without…

Aim: To analyse the given ETABS model and to extract the design results and detailing of two mentioned RC columns. Also the calculation for special confining reinforcement has to be ensured based on clause 8.1 of IS 13920-2016. Design of RC columns: Step-1: Analyse > Check model Analyse > Run analysis Using the above…

Aim: To analyse the given ETABS model and to extract the design results and detailing of two mentioned RC beams. Also the design recheck for Grid-A RC beam has to be done. Design of RC beams: Step-1: Analyse > Check model Analyse > Run analysis Using the above toolpath, the given model is first checked for its errors…

Aim: To model and analyse all the Buildings from A to K, with the given structural specifications. And to compare the analysis results between models based on the different configurations.   Modelling of Building-A:   Modelling of Building-B:     Modelling of Building-C:     Modelling of Building-D:…

Aim: To model and analyse a 25 storey building with the given specifications and to cross check the parameters as per IS1893 provisions.   Step-1: Edit > Edit stories and Grid system Using the user defined grid input, The horizontal and vertical grid legends have been assigned with 4 meter bay on either sides  …

Answer for Question-1:   Criteria       Restraint of Floor shrinkage Since all four corners of floor is restricted to experience shortening, this RC wall system possess good control of shrinkage. The edges of Floor are restricted to floor shortening. Whereas the corners are prone to shortening/shrinkage…

Answer for Question-1: Aim: To assess the given structural plan with respect to seismic irregularities Irregularity in terms of symmetry: As depicted in the above images, the building structural elements are mirror both in X-axis and Y-axis. So, it hold good symmetrical property in both the principal directions.  Irregularity…

Aim: To compute the values of the seismic parameters based on the given structural data.   Formation of mass matrix: m = `[[m,0,0,0,0],[0,m,0,0,0],[0,0,m,0,0],[0,0,0,m,0],[0,0,0,0,m]]`   Influence vector: Since the degrees of freedom move along the direction of the lateral force, the influence vector will be…

Answer for Question-1:   Aim: To compute lateral stiffness of one storey building with the given parameters.   Basic formulas of stiffness coefficient of Beams and frames:   Steps: 1. Let us assume three different cases to apply for each degree of freedom. `K_11`where first number denotes node of degree…

AIM: To assess the type, cause and feasible rectification for the given structural issues based on the following building photos. Before going in to the assessment, it is better to first distinguish the terms, a Damage and a Failure of a structure. Damage of a Structure: A damage can occur in a structural frame or an element…