Week 10 Challenge

A portal frame has following details: Portal beam having length of 4m and cross section of 300mm x 600mm (depth) and portal columns have height of 3m and cross section 300mm x 300mm. 1. The portal beam has two Bearing locations 1m from either end. The load from each bearing is 75 kN. Calculate the support reactions and…

1. Mention the need for a metro rail in a developing economy.  Ans:- A metro rail system can play a crucial role in the development of an economy, particularly in a developing country. Here are several key reasons why a metro rail system is often needed in such an economy: Efficient and Reliable Transportation: A…

1. Explain the procedure of transverse analysis of deck slab of a metro viaduct. 2. Explain the STAAD steps how the nodes & beams are created, and supports being assigned to those nodes for a slab in transverse modelling.   For creating of nodes Go to the Geometry tool Put the desired coordinate value such as…

1. What is elastomeric bearings? And what is made of and the uses of them. Ans:- Elastomeric bearings, also known as rubber bearings or elastomeric isolators, are structural components used to provide flexibility, vibration isolation, and load-bearing capability in various types of infrastructure. These bearings are commonly…

1. What is a prestressed I girder? Why should a designer choose I girders when we are having double deck bridges and substantiate your answer with structural clearances? Ans:- A prestressed I girder is a type of structural member commonly used in bridge construction. It consists of a steel or concrete beam in the shape…

1.What are the sectional properties we need upfront for designing a metro viaduct? What is the supporting software for identifying the sectional properties and designing them? Ans:- When designing a metro viaduct, there are several sectional properties that are crucial to consider. These properties include: Cross-sectional…

1.What are the structural components of a bridge? Explain in detail about the foundation, sub structure and super structure components of the bridge Ans:- A bridge consists of several structural components that work together to provide support, stability, and functionality. The main components of a bridge can be broadly…

1. Why is a metro rail needed in countries with developing economy? What is your basic understanding on the differences between a conventional rail system and a metro rail system? Ans: A metro rail system, also known as a rapid transit system or subway, is often considered as an essential infrastructure component in countries…

Given Date:- BASIC DESIGN DATA C/C of expansion gap (Left Span) 13.3 m C/C of bearing (Left Span) 12.3 m Girder overhang beyond bearing (Left Span) 0.35 m Distance of bearing to expansion gap (Left span) 0.5 m C/C of expansion gap (Right Span) 13.3 m C/C of bearing (Right Span) 12.3 m Girder overhang beyond bearing (Left…

DESIGN OF BOX CULVERT FOR 12.00x5.50    1.0 Input Data                                     INPUT DATA :                                  …

DESIGN DATA:- For Spans and Cross-Sections:- 1 C/c of exp joint = 15 m 2 C/c of bearing  = 14 m 3 Dist. Of bearing to exp joint = 0.5 m 4 Total Deck width = 12 m 5 Carriage width = 8.5 m 6 Footpath width (One Side) = 1.5 m 7 Width of Crashbarrier = 1 m 8 Width if median = 1 m   Details of the Superstructure:-…

 DESIGN OF BOX CULVERT FOR 12.00x5.50    1.0 Input Data                                     INPUT DATA :                                …

1)What is the difference between active and passive earth pressure? Active pressure is the condition in which the earth exerts a force on a retaining system and the members tend to move toward the excavation. Passive pressure is a condition in which the retaining system exerts a force on the soil.      …

Span and Cross-Section::- Sl No Items Values Units 1 C/c of expansion joint 28 m 2 C/c of bearing  27.2 m 3 Dist. Of bearing to expansion joint 0.4 m 4 Width of the Total Deck 12 m 5 Carriageway width 8.5 m 6 Footpath width (One Side) 1.5 m 7 Width of CB( RHS) 0.5 m 8 Width of CB ( LHS) 0.5 m     Superstructure…

1. Data Given:-   Length of the linear waterway = 90 mDesign discharge = 700 m3/sSilt factor = 1HFL = 3 m from GLVelocity of water = 1.2 m/sec.Top road level = 100 mGround Level = 93.5 mHFL= 96.5 mDiameter of Pile = 1.2 mVertical capacity = 250 tonnesHorizontal capacity = 35 tonnesWell Diameter = 8 mCapacity = 70…

    DATA GIVEN:- Basic Design Detail Sl. No Span and Cross section Quantity Unit 1 C/c of expansin joint 47.5 m 2 C/c of bearing  45.3 m 3 Dist. Of bearing to expansion joint 1.1 m 4 Total width of the deck 12.5 m 5 Width of the carriageway 8.5 m 6 Footpath width (One Side) 1.5 m 7 Crashbarrier width 1 m…

    Basic Design Data- Sl No Span and Cross section L Unit 1 C/c of expansion joint 14.4 m 2 C/c  bearing  13.4 m 3 Distace of bearing to expansion joint joint 0.5 m 4  Deck width 12 m 5 Carriageway width 9 m 6 Footpath width (One Side) 1.5 m 7 Width of CB 0.5 m 8 Median width 0.5 m  Superstructure…

1)How to fix no. of piles in the deep foundations in a flyover in  Delhi, listing all the loads acting on it and making all the  combinations as per IRC 6. What are the different factors that can impact the number of piles and its depth. How it is different in  wall type abutment and pier (free and fix).…

SOLUTIONS:- 1)What all checks need to be followed in design of well foundation regarding the stability and the design. List out all the necessary clauses from IRC codes applicable. Checks need to be followed in the design of well foundation regarding the stability and the design. They are:- IRC-078 Clause 706.1 for Loads,…

AIM OF THE EXPERIMENT:- How hydrology and geotechnical studies (preliminary and detail studies, zone of influence) are used in fixing span  as per IRC standards and type of bridge. Mention the clauses applicable for the same. Determine the scour depth at the pier and abutment location having silt factor =3 Design…

AIM OF THE EXPERIMENT:  To Define all loads to be applied in the abutment of the bridge as per IRC 6 and mention the clauses. Check for overturning and sliding of 4 m height of Abutment (from ground level), embedded 2 m in ground.  THEORY:  Abutment:-An abutment is the substructure at the ends…

1.What are different type of foundation in bridges and how selection of type is made? Ans:- The different types of foundation in bridges is generally as follows: Shallow foundation Deep foundation Shallow Foundations:- A shallow foundation is a type of foundation that transfers building loads to the earth very near the…

AIM OF THE EXPERIMENT:- To calculate the water current forces, centrifugal forces, wave forces, snow loads, temperature loads, Barge Impact load for the bridge structure shown below DATA GIVEN:- Maximum Crest elevation for the wave = 3.0 m Number of Main Girder = 4 Size of Main I Girder = Flange as 2.0 x 0.3m and Depth…

AIM OF THE EXPERIMENT: To determine the snow load acting on the bridge structure and perform analysis in Staad.Pro. THEORY:- Snow Load:- Snow load is the downward force on a building's roof or camber of an highway by the weight of accumulated snow and ice. The roof or the entire structure can fail if the…

AIM OF THE EXPERIMENT: To determine the wave load acting on the bridge model and perform analysis Staad.Pro. THEORY:-  Wave loading is most commonly the application of a pulsed or wavelike load to a material or object. This is most commonly used in the analysis of piping, ships, or building structures which…

AIM OF THE EXPERIMENT: To determine the temperature load acting on bridge structure and perform analysis in Staad.Pro. THEORY:- Temperature Loads:- A thermal load is defined as the temperature that causes the effect on buildings and structures, such as outdoor air temperature, solar radiation, underground…

AIM OF THE EXPERIMENT:  To determine the Barge Impact load acting on bridge and analyze accordingly in Staad.Pro. THEORY:- Barge Impact Load:- Barge impact is a potential hazard for bridge piers located in navigation waterways. The dynamic impact process is influenced by many factors, including barge…

AIM OF THE EXPERIMENT: To determine the centrifugal load acting on bridge and perform analysis in Staad.Pro. THEORY:- Centrifugual Force:- Centrifugal force is the apparent outward force on a mass when it is rotated. Think of a ball on the end of a string that is being twirled around, or the outward motion…

AIM OF THE EXPERIMENT: To determine the water current loads acting on bridge and perform analysis accordingly in Staad Pro. THEORY:- Water Current Load:- A Water Current Load is the amount of stream water that is passed from a catchment to the component receiving at the substructure of bridge. Objective:-…

AIM OF THE EXPERIMENT:-  To determine wind load acting on the bridge and perform analysis in Staad Pro. THEORY:- Basic Wind Speed is based on peak gust velocity averaged over a short time interval of about 3s and corresponds to mean heights above ground level in an open terrain Figure 1 gives basic wind speed map…

AIM OF THE EXPERIMENT:- To determine the pipe load acting on bridge and analyse accordingly in Staad.Pro. DATA GIVEN Width of Bridge = 3m Location = Bank of River Narmada Diameter of Pipe 1 = 700 mm NB DI Diameter of Pipe 2 = 200 mm NB DI Length of Bridge = 24m Let us assume water is flowing through the pipe since…

AIM OF THE EXPERIMENT:- Calculate the dead load , IRS live loads , Earth pressure load , wind load and seismic loads for the bridge structure at Ahmedabad Metro rail project shown in the figure.  Assume the unit weight of soil as 18 kN/m3 . Use IS 875  code book for finding the Basic wind speed at the site location.…

AIM OF THE EXPERIMENT:- To calculate the Earth Pressure acting on the abutment of the wall and perform analysis on Staad Pro. THEORIES:- ABUTMENT: Abutment are the end supports of the bridge or any culvert which supports the lateral loads or pressure that are acting on the bridge. Earth Pressure:- Earth pressure is the…

AIM OF THE EXPERIMENT:- To apply IRS railway loads on a given bridge section and model it in Staad Pro. DATA GIVEN:- Width of the bridge is 26m. Span of the Bridge Deck=25m Girder Type=I Section No. of Girders=8 Nos. THEORY:- IRS- INDIAN RAILWAYS STANDARD IRS code were developed by Indian Railways for the purpose of Design…

AIM OF THE EXPERIMENT:- To apply IRC Loads in a given section and perform analysis in STAAD Pro. SOFTWARE REQUIRED:- STAAD Pro. V8i Theories:- IRC- The Indian Roads Congress (IRC) is the Apex Body of Highway Engineers in the country. The IRC was set up in December, 1934 on the recommendations of the Indian Road Development…

AIM OF THE EXPERIMENT:- To Calculate the Dead Load of the Box Girder given in the above figure and apply it in Staad Pro. and perform analysis. SOFTWARE REQUIRED:- Staad Pro. THEORY:- Deadload:- A constant load in a structure (such as a bridge or building) that is due to the weight of the members, the supported structure,…