This document is a report on the construction of a brick wall. It begins with an introduction and objectives. It then covers various topics related to brick walls including types of bricks and mortar, bonding techniques, and the construction process. The report describes the materials and steps to lay each course of bricks accurately and securely. It also identifies the tools and equipment used at each stage of construction. Overall, the report provides a comprehensive overview of building a brick wall from planning to completion.
This document discusses continuous straight stairs. It provides three key points:
1) Continuous stairs have no landings or intermediate newel posts, consisting of a single flight from bottom to top. This makes them the most efficient and economical way to achieve the necessary rise.
2) Although simple in design and construction, they are not popular due to the amount of plan space they occupy. The flight acts as a simply supported slab spanning between landings.
3) The advantages of continuous straight stairs are that they are easy to ascend/descend, simple to build, and require no intermediate structure. The disadvantages are that they use up more linear space than other stair types and do not provide privacy between floors like
Scaffolding is used to provide safe elevated access to work areas. Regulations require that scaffolds be erected by competent persons and include fall protection such as guardrails and toe boards. Scaffold components include boards, guardrails, and brick guards. Common scaffold systems include cuplock and putlog configurations. Safety is paramount, as scaffolds must support all expected loads and prevent falls of workers and falling objects.
The document discusses the fabrication of composite welded steel plate girder bridges being constructed by Northern Railway in Ambala Division on two level crossings at Barnala and Budhwala. Key details include:
- Steel plate girders are being fabricated through cutting, drilling, welding and adding stiffeners before being launched and having an RCC deck cast in-situ to form composite girders.
- The Barnala bridge will be a single 46m span over the railway line, while the Budhwala bridge will have spans of 23m and 37m.
- Foundation works including piles and piers are complete at both sites. Fabrication is ongoing which involves testing steel, cutting plates,
It is used as a mould for a structure in which fresh concrete is pouredÌýonly to harden subsequently.
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Calculation of electrical load of buildingniraj2510
Ìý
This document provides an example calculation of the electrical load of a building with the following specifications: it has 5 floors with 3 flats on each floor, each flat has a 240V single phase supply and 20 wiring points, there is one 15HP lift motor and two 5HP machines, the building receives a 415V 3-phase supply. The summary calculates:
1) The total electrical load is 52.137KW
2) The main switch size is 100A
3) The main cable is 25mm sq copper cable
4) Each flat has 5 sub-circuits
Pre-Fabricated Steel Bridges for Accelerated Bridge Construction (ABC)AISC/NSBA
Ìý
This document discusses the use of prefabricated steel bridges and bridge elements for accelerated bridge construction. Over 800 bridges have used prefabricated bridge elements or systems in the last 3 years, with prefabricated steel bridge systems being most common historically. Examples of completed projects using prefabricated steel bridges, modules, and elements are presented, demonstrating how steel allows for faster construction times, reuse of existing foundations, and accommodation of complex geometries. The benefits of modular steel elements for accelerated bridge construction are outlined, including conventional fabrication, light weight, maximum span lengths, and prefabrication advantages.
This document provides an overview of GlobalGROUP ISO 9001 certified architectural glass hardware products. It includes a table of contents listing various glass fittings, floor springs, door locks, shower fittings, glass clips, and other hardware. Sections provide details on patch fittings, floor springs, sealing strips, and door locks. Images show the products and technical specifications are provided. The document appears to be a catalog for GlobalGROUP's architectural glass hardware and accessories.
The document describes specifications for a glazed ceramic tile sample tested according to ISO standards. It provides details of the sample's visual characteristics and results of various tests to determine dimensions, flatness, water absorption, modulus of rupture, breaking strength, surface abrasion resistance, and resistance to thermal shock and chemicals. Most test results satisfied ISO standards except for breaking strength, likely due to higher than average porosity of 41.1% in the sample caused by non-uniform raw materials and residual moisture from pressing. Property improvements are suggested such as mechanical milling of raw materials and using digital ink injection for glaze coating.
The document discusses cable tray solutions from Thomas & Betts for the oil and gas industry. It describes their high-strength aluminum cable trays that are designed for safety in hazardous locations. It also details innovative fittings and splices that allow for easy installation and transitions between horizontal and vertical runs to maximize efficiency.
Shoring is used to support trench faces and prevent soil and underground utility movement. It is used when trench depths make sloping back to a safe angle impractical. There are three main types of shoring: timber shoring using wood sheets and posts; hydraulic shoring using prefabricated aluminum or steel struts, wales and sheeting; and pneumatic shoring which is similar but uses air pressure instead of hydraulic pressure. Shoring must be installed from the top down and removed from the bottom up.
The document discusses different types of slabs used in construction. It describes solid ground floors, suspended ground floors, upper floors, precast concrete floors, reinforced concrete slabs, flat plate slabs, waffle slabs, one-way and two-way slabs. It also discusses potential problems with slabs like cracking and dampness, and their causes such as poor construction practices, uneven settlement, inadequate strength of concrete, and improper reinforcement placement.
This document discusses different types of wiring systems used in buildings, including their advantages and disadvantages. It describes cleat wiring, which is the cheapest but only suitable for temporary use. Wooden casing and capping wiring provides better protection but is not suitable for damp places. CTS and TRS wiring uses rubber-sheathed cable and offers longer life though installation requires more skill. Metal-sheathed wiring provides best protection against dampness and chemicals but is more expensive. Conduit wiring, though costly, is best for buildings as it offers maximum safety against fire and mechanical damage.
This document discusses the different types of beams that can be used in construction. It describes beams based on their support conditions, construction materials, cross-sectional shapes, geometry, equilibrium conditions, and method of construction. The main types discussed are simply supported beams, fixed beams, continuous beams, cantilever beams, reinforced concrete beams, steel beams, I-beams, and prestressed concrete beams.
This document discusses hollow block and ribbed slabs, which are concrete slabs reinforced with either hollow concrete blocks or concrete ribs. It outlines the benefits of hollow block slabs, including improved insulation, easier installation without formwork, and reduced weight. Various international codes have different limitations on the design of these slabs, such as the maximum distance between ribs. The document also provides pictures from construction sites and gives an overview of the design process and limitations for hollow block and ribbed slabs according to different codes like ACI, BS, and Eurocode. It concludes with a solved example problem.
Formwork Presentation for Construction TechnologyI'mMiss Lily
Ìý
1. Formwork refers to the temporary structure used to support wet concrete until it is cured and can support itself. Common materials used include wood, steel, aluminum, plastic and plywood.
2. A good formwork must be water tight, strong, and reusable while also considering factors like quality, safety, and economy. It must be able to withstand loads, retain its shape, and be removed without damaging the concrete.
3. Different types of formworks are used for columns, beams, slabs, and other structural elements. Column formwork typically consists of side and end planks joined by yokes and bolts. Beam formworks use thick timber or plywood and are supported by props.
This document provides information about plaster of paris (POP) ceiling installation. It explains that POP is made by heating gypsum and was originally found near Paris, France. It then outlines the steps for installing a POP false ceiling, which includes marking points on the ceiling and walls, installing anchor points, perimeter channels, ceiling angles strips, ceiling sections, and finally attaching plasterboards. Details are given on the packaging and types of POP mouldings available.
tittle is about Design & Fabrication of Hydraulic Lift.
Hydraulic lift is a type of machine that uses a hydraulic cylinder to lift and lower objects by applying relatively small force compared to the weight of the object to be lifted.
It’s working is based on Pascal’s Law
aluminum scaffolding
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scaffolding components diagram
type of scaffolding in construction
mason scaffolding diagrams
types of masonry scaffolding
scaffold parts diagram
parts of scaffolding system
types of scaffolding systems
types of scaffolding systems
scaffolding types with diagram
scaffolding types & design
scaffolding types construction
baker type scaffolding
types of masonry scaffolding
types of scaffolds in education
Scaffolding is a temporary structure erected around buildings during construction to support workers and materials. It consists of standards, ledgers, braces, putlogs, transoms, and boarding. The main types are single scaffolding for bricklayers, double scaffolding for masons, cantilever scaffolding, suspended scaffolding where the platform is raised and lowered by ropes or chains, trestle scaffolding on movable bases like ladders, steel scaffolding using tubes for strength and durability, and patented scaffolding available commercially with special couplings and adjustable platforms.
Stairs are designed to provide passage between different levels of a building. They consist of steps divided into smaller vertical distances. Stairs should be located for easy access and be well-lit and ventilated. There are various technical terms used in stair construction like baluster, handrail, newel post, soffit, and tread. Stairs can be straight, turning, circular, or geometrical. Straight stairs run in one direction while turning stairs change direction. Circular stairs have winder steps radiating from the center. Geometrical stairs have non-rectangular shapes with continuous handrails. Proper stair design and construction is important for safety and accessibility.
Formwork is a temporary mold into which concrete is poured and shaped. It must be strong enough to support the weight of wet concrete and construction loads. Common materials for formwork include timber, steel, plastic, and aluminum. Proper construction and removal of formwork is important for quality, safety, and economy of concrete structures. Failure to properly brace, support, or remove formwork can lead to collapse during construction.
Session 5 design of rcc structural elements PROF YADUNANDANAjit Sabnis
Ìý
This document provides an overview of designing reinforced concrete (RCC) elements such as slabs, beams, columns, footings, staircases, and water tanks. It begins with defining design as sizing the structure to have a low probability of limit states like failure or excessive deformation being exceeded. Probability and real-world parameters like strain are considered rather than deterministic calculations. The general design process is outlined as preliminary sizing based on codes, defining loads and combinations, analyzing to get member forces, and designing reinforcement. Guidelines for preliminary slab, beam, and column sizing are provided based on span-to-depth ratios. Different slab types like one-way and two-way systems are also introduced.
Electrical wiring is the process of connecting cables and wires from various devices like lights, fans, switches, and sockets to the main distribution board for continuous power supply. There are different types of electrical wiring systems including cleat wiring, wooden casing and capping wiring, CTS or TRS or PVC sheath wiring, lead sheathed or metal sheathed wiring, and conduit wiring. Conduit wiring can be surface or open conduit wiring or concealed or underground conduit wiring depending on where steel or PVC pipes are used to run the wires. Buildings come in different types including residential for personal houses, industrial for companies, and workshops for product manufacturing.
Mild steel consists of iron alloyed with less than 0.3% carbon. Mild steel frames are commonly used in building construction as they allow for ductility and malleability. A mild steel frame uses a skeleton structure of vertical steel columns and horizontal beams arranged in a grid pattern to support floors, roofs, and walls. This technique enabled the construction of skyscrapers. Various steel construction materials are discussed, including cuplocks, steel plates, props, acrospans, channels, jacks, joint pins, couplers, mild steel pipes, and steel challis. Their uses, properties, sizes, and specifications are described.
The document discusses hydraulic lifts, including their history and operating principles. It describes two main types - direct acting and suspended hydraulic lifts. Direct acting lifts have a ram that moves equal to the lift's movement, while suspended lifts use a ram, pulleys, and wire rope to lift a cage. Hydraulic lifts operate using Pascal's law and pressurized fluid to move loads between floors. They have applications in material handling and accessibility. Modern innovations have increased lift speeds and improved energy recovery.
The document describes an automatic hydraulic jack project. It provides background on hydraulics, including Pascal's law and the relationship between pressure, force and area. It then discusses the basic components of a hydraulic system, including a pump, motor, valves, conduits and controller. The project uses syringes to act as actuators and directional control valves. Water is used as the transmission medium, with the syringes working together to lift a load automatically via gears, a motor and controller. Advantages include easy operation and control while disadvantages include potential rupturing losing needed pressure.
This document provides an overview of GlobalGROUP ISO 9001 certified architectural glass hardware products. It includes a table of contents listing various glass fittings, floor springs, door locks, shower fittings, glass clips, and other hardware. Sections provide details on patch fittings, floor springs, sealing strips, and door locks. Images show the products and technical specifications are provided. The document appears to be a catalog for GlobalGROUP's architectural glass hardware and accessories.
The document describes specifications for a glazed ceramic tile sample tested according to ISO standards. It provides details of the sample's visual characteristics and results of various tests to determine dimensions, flatness, water absorption, modulus of rupture, breaking strength, surface abrasion resistance, and resistance to thermal shock and chemicals. Most test results satisfied ISO standards except for breaking strength, likely due to higher than average porosity of 41.1% in the sample caused by non-uniform raw materials and residual moisture from pressing. Property improvements are suggested such as mechanical milling of raw materials and using digital ink injection for glaze coating.
The document discusses cable tray solutions from Thomas & Betts for the oil and gas industry. It describes their high-strength aluminum cable trays that are designed for safety in hazardous locations. It also details innovative fittings and splices that allow for easy installation and transitions between horizontal and vertical runs to maximize efficiency.
Shoring is used to support trench faces and prevent soil and underground utility movement. It is used when trench depths make sloping back to a safe angle impractical. There are three main types of shoring: timber shoring using wood sheets and posts; hydraulic shoring using prefabricated aluminum or steel struts, wales and sheeting; and pneumatic shoring which is similar but uses air pressure instead of hydraulic pressure. Shoring must be installed from the top down and removed from the bottom up.
The document discusses different types of slabs used in construction. It describes solid ground floors, suspended ground floors, upper floors, precast concrete floors, reinforced concrete slabs, flat plate slabs, waffle slabs, one-way and two-way slabs. It also discusses potential problems with slabs like cracking and dampness, and their causes such as poor construction practices, uneven settlement, inadequate strength of concrete, and improper reinforcement placement.
This document discusses different types of wiring systems used in buildings, including their advantages and disadvantages. It describes cleat wiring, which is the cheapest but only suitable for temporary use. Wooden casing and capping wiring provides better protection but is not suitable for damp places. CTS and TRS wiring uses rubber-sheathed cable and offers longer life though installation requires more skill. Metal-sheathed wiring provides best protection against dampness and chemicals but is more expensive. Conduit wiring, though costly, is best for buildings as it offers maximum safety against fire and mechanical damage.
This document discusses the different types of beams that can be used in construction. It describes beams based on their support conditions, construction materials, cross-sectional shapes, geometry, equilibrium conditions, and method of construction. The main types discussed are simply supported beams, fixed beams, continuous beams, cantilever beams, reinforced concrete beams, steel beams, I-beams, and prestressed concrete beams.
This document discusses hollow block and ribbed slabs, which are concrete slabs reinforced with either hollow concrete blocks or concrete ribs. It outlines the benefits of hollow block slabs, including improved insulation, easier installation without formwork, and reduced weight. Various international codes have different limitations on the design of these slabs, such as the maximum distance between ribs. The document also provides pictures from construction sites and gives an overview of the design process and limitations for hollow block and ribbed slabs according to different codes like ACI, BS, and Eurocode. It concludes with a solved example problem.
Formwork Presentation for Construction TechnologyI'mMiss Lily
Ìý
1. Formwork refers to the temporary structure used to support wet concrete until it is cured and can support itself. Common materials used include wood, steel, aluminum, plastic and plywood.
2. A good formwork must be water tight, strong, and reusable while also considering factors like quality, safety, and economy. It must be able to withstand loads, retain its shape, and be removed without damaging the concrete.
3. Different types of formworks are used for columns, beams, slabs, and other structural elements. Column formwork typically consists of side and end planks joined by yokes and bolts. Beam formworks use thick timber or plywood and are supported by props.
This document provides information about plaster of paris (POP) ceiling installation. It explains that POP is made by heating gypsum and was originally found near Paris, France. It then outlines the steps for installing a POP false ceiling, which includes marking points on the ceiling and walls, installing anchor points, perimeter channels, ceiling angles strips, ceiling sections, and finally attaching plasterboards. Details are given on the packaging and types of POP mouldings available.
tittle is about Design & Fabrication of Hydraulic Lift.
Hydraulic lift is a type of machine that uses a hydraulic cylinder to lift and lower objects by applying relatively small force compared to the weight of the object to be lifted.
It’s working is based on Pascal’s Law
aluminum scaffolding
scaffolding wikipedia
types of scaffolding pictures
types of scaffolding
scaffolding components diagram
type of scaffolding in construction
mason scaffolding diagrams
types of masonry scaffolding
scaffold parts diagram
parts of scaffolding system
types of scaffolding systems
types of scaffolding systems
scaffolding types with diagram
scaffolding types & design
scaffolding types construction
baker type scaffolding
types of masonry scaffolding
types of scaffolds in education
Scaffolding is a temporary structure erected around buildings during construction to support workers and materials. It consists of standards, ledgers, braces, putlogs, transoms, and boarding. The main types are single scaffolding for bricklayers, double scaffolding for masons, cantilever scaffolding, suspended scaffolding where the platform is raised and lowered by ropes or chains, trestle scaffolding on movable bases like ladders, steel scaffolding using tubes for strength and durability, and patented scaffolding available commercially with special couplings and adjustable platforms.
Stairs are designed to provide passage between different levels of a building. They consist of steps divided into smaller vertical distances. Stairs should be located for easy access and be well-lit and ventilated. There are various technical terms used in stair construction like baluster, handrail, newel post, soffit, and tread. Stairs can be straight, turning, circular, or geometrical. Straight stairs run in one direction while turning stairs change direction. Circular stairs have winder steps radiating from the center. Geometrical stairs have non-rectangular shapes with continuous handrails. Proper stair design and construction is important for safety and accessibility.
Formwork is a temporary mold into which concrete is poured and shaped. It must be strong enough to support the weight of wet concrete and construction loads. Common materials for formwork include timber, steel, plastic, and aluminum. Proper construction and removal of formwork is important for quality, safety, and economy of concrete structures. Failure to properly brace, support, or remove formwork can lead to collapse during construction.
Session 5 design of rcc structural elements PROF YADUNANDANAjit Sabnis
Ìý
This document provides an overview of designing reinforced concrete (RCC) elements such as slabs, beams, columns, footings, staircases, and water tanks. It begins with defining design as sizing the structure to have a low probability of limit states like failure or excessive deformation being exceeded. Probability and real-world parameters like strain are considered rather than deterministic calculations. The general design process is outlined as preliminary sizing based on codes, defining loads and combinations, analyzing to get member forces, and designing reinforcement. Guidelines for preliminary slab, beam, and column sizing are provided based on span-to-depth ratios. Different slab types like one-way and two-way systems are also introduced.
Electrical wiring is the process of connecting cables and wires from various devices like lights, fans, switches, and sockets to the main distribution board for continuous power supply. There are different types of electrical wiring systems including cleat wiring, wooden casing and capping wiring, CTS or TRS or PVC sheath wiring, lead sheathed or metal sheathed wiring, and conduit wiring. Conduit wiring can be surface or open conduit wiring or concealed or underground conduit wiring depending on where steel or PVC pipes are used to run the wires. Buildings come in different types including residential for personal houses, industrial for companies, and workshops for product manufacturing.
Mild steel consists of iron alloyed with less than 0.3% carbon. Mild steel frames are commonly used in building construction as they allow for ductility and malleability. A mild steel frame uses a skeleton structure of vertical steel columns and horizontal beams arranged in a grid pattern to support floors, roofs, and walls. This technique enabled the construction of skyscrapers. Various steel construction materials are discussed, including cuplocks, steel plates, props, acrospans, channels, jacks, joint pins, couplers, mild steel pipes, and steel challis. Their uses, properties, sizes, and specifications are described.
The document discusses hydraulic lifts, including their history and operating principles. It describes two main types - direct acting and suspended hydraulic lifts. Direct acting lifts have a ram that moves equal to the lift's movement, while suspended lifts use a ram, pulleys, and wire rope to lift a cage. Hydraulic lifts operate using Pascal's law and pressurized fluid to move loads between floors. They have applications in material handling and accessibility. Modern innovations have increased lift speeds and improved energy recovery.
The document describes an automatic hydraulic jack project. It provides background on hydraulics, including Pascal's law and the relationship between pressure, force and area. It then discusses the basic components of a hydraulic system, including a pump, motor, valves, conduits and controller. The project uses syringes to act as actuators and directional control valves. Water is used as the transmission medium, with the syringes working together to lift a load automatically via gears, a motor and controller. Advantages include easy operation and control while disadvantages include potential rupturing losing needed pressure.
One of the most important equipment used in transporting goods and people is the hydraulic lift. By the way of hydraulics, such lifts are able to carry heavy loads with great ease, and lift it vertically. Hydraulic lifts come in the form of passenger lift, service lifts (to carry goods to higher floors etc.
Hydraulic elevator systems lift a car using a hydraulic ram, a fluid-driven piston mounted inside a cylinder.
Hydraulic lifts use pressurized fluid to raise or lower platforms through hydraulic cylinders and pumps. There are two main types: direct acting lifts where the cylinder stroke directly lifts the platform, and suspended lifts where the platform is lifted by a pulley system connected to the cylinder. Hydraulic lifts apply Pascal's law to transmit pressure equally throughout the confined fluid, allowing the lifts to precisely move platforms between floors to transport passengers or cargo. They are commonly used in buildings, industrial applications, and material handling.
The document describes how to construct a hydraulic jack to demonstrate Pascal's law. It explains that Pascal's law states that a pressure change in a confined fluid is transmitted undiminished throughout the fluid. It then provides instructions for assembling the hydraulic jack using various syringes, tubes, and other materials. The jack works by using fluid pressure to lift a cylinder when pressure is applied by squeezing one syringe, demonstrating how pressure is transmitted through an incompressible fluid according to Pascal's law.
This document describes a Torin 'Big Red' hydraulic car jack. It lists the jack's specifications, including a 3 ton lift capacity and a height range of 5-19.4 inches. The document identifies the jack's components, which include a valve and cylinders, and describes how the system works by pumping the handle to transfer fluid and raise the jack. It provides a schematic and discusses pros and cons, such as its heavy weight but ability to lift most cars with ease.
This document summarizes a student's final project report on improving the design of a car jack. The student conducted research on existing car jack designs and identified key issues like them requiring significant strength and energy to operate. The objective of the project was to redesign the car jack to be more functional and consider human factors. The student followed a process flow chart that included problem analysis, literature review, concept creation, testing, and conclusion. The scope was to design a 3-ton hydraulic car jack that optimizes human power usage by replacing the long arm with a foot pedal for easier operation. CAD drawings and testing of the new design were also part of the project scope.
The document describes the design and analysis of a car jack using CAD software CATIA and FEA software ANSYS. It was a summer training project completed by two students to fulfill their degree requirements. The project involved modeling a scissor jack in CATIA, analyzing it using ANSYS to determine stresses and efficiency, and optimizing the design to improve the jack's life and performance. The document provides background on different types of jacks, prior research, and specifications and working of scissor jacks to support the project objectives.
Specially designed for disabled people.
Wider door width – 900mm minimum.
Button panel at lower level – 800mm from
floor.
1. The document discusses the history and components of lift systems used in buildings. It describes the development of safety elevators in the 1800s and categories of lifts based on their functions.
2. The key components of lift systems are identified as the lift car, shaft, doors, controls, and safety devices. Selection factors for lifts include capacity, speed, type of building, and user requirements.
3. Common types of lifts are electric lifts, which use electric motors and cables, and hydraulic lifts, which use hydraulic fluid pressure. Arrangement and
Md Shahadat ali constructed three projects - an impulse bottle demonstrating Newton's third law, an RC plane applying Bernoulli's theorem without a kit, and a hydraulic crane based on Pascal's law. The hydraulic crane uses a wooden structure, pipes, syringes of different diameters, rubber bands, pens, an iron ball, and glue to lift heavy objects like in factories, saving both time and money over manual labor.
This document describes a remote controlled electrically operated hydraulic jack. It uses a wiper motor to power a hydraulic system that lifts a vehicle. The wiper motor's rotary motion is converted to reciprocal motion through gears to operate the hydraulic jack plunger. An infrared remote control system is used to operate the wiper motor and lift the vehicle remotely without physical exertion. The system aims to help those who are physically challenged by remotely lifting a car jack with a battery-powered motor and hydraulic system.
Hydraulic cranes use hydraulic power to lift and lower heavy loads. They consist of a vertical post with a jib and tie attached. A hydraulic jigger contains a movable ram inside a fixed cylinder. Pressurized water forces the ram to move, increasing the distance between pulley blocks and lifting the load via a wire rope. To lower loads, water is released from the cylinder, allowing the ram to move in the opposite direction and decreasing the distance between pulley blocks. Hydraulic cranes are widely used for loading and unloading ships, warehouses, workshops, and heavy industries.
Final Project_ Design and FEM Analysis of Scissor JackMehmet Bariskan
Ìý
The document describes the design and finite element analysis of a scissor jack. It includes an overview of scissor jack components and operation, as well as calculations of forces and stresses on members. A series of mesh refinement studies were performed on the carrier member, lifting arms, and shaft screw to determine maximum stresses and displacements under expected loading conditions.
DESIGN AND FABRICATION OF A POWER SCISSOR JACKsasank babu
Ìý
The document describes the design and fabrication of a power scissor jack. It provides background on screw jacks used in World War II vehicles and discusses various types of lifting devices such as levers, screws, and gears. The document is a project report submitted to fulfill the requirements for a Bachelor of Technology degree in Mechanical Engineering. It includes chapters on power screws, design of the scissor jack components, drawings, manufacturing methods, fabrication, and conclusions.
This document discusses factors to consider when designing lifts, including population, handling capacity, and quality of service. It provides guidelines for calculating population based on building occupancy type and floor area. Handling capacity is calculated using a formula considering average passengers carried per trip, waiting interval, and total peak population. Quality of service is measured by passenger waiting time, with intervals classified as excellent, good, or fair. Round trip time is also calculated, considering time for passenger entry/exit, door operation, acceleration/deceleration, and travel speeds. Recommended lift speeds are provided for different building types.
This document summarizes the key components and principles of hydraulic cranes. It explains that hydraulic cranes use hydraulics rather than cables to raise and lower loads, with the hydraulic system converting mechanical energy into hydraulic energy via a pump and transmitting it through fluid lines and valves to actuators that do mechanical work. It also describes how hydraulic cranes operate based on Pascal's law that pressure transmitted through a confined fluid acts equally on all surfaces.
A scissor lift with trolley is a device that uses extension mechanisms to raise a platform or table to adjustable heights. It can be powered hydraulically, pneumatically, electrically, or manually. The document then describes the specific design of a scissor lift with a DC motor, including calculations of the required torque and dimensions for different payloads. Diagrams and lists of parts are provided. Potential applications are in automotive, construction, and transportation industries. Maintenance is required periodically.
This document provides details about the design and construction of a remote controlled motorized hydraulic jack. The summary is:
The remote controlled motorized hydraulic jack uses a 12V DC motor connected via a crankshaft to the hydraulic jack. The motor is powered by a 12V power supply and controlled remotely using a transmitter and receiver. The power supply steps down household AC voltage to 12V DC using a transformer, rectifier, and voltage regulators. The remote control allows single-person operation of the jack to lift vehicle tires without manual labor.
A hydraulic jack uses a liquid to transmit pressure through a system of connected cylinders to lift heavy loads using minimal force. It operates based on Pascal's principle that pressure in an enclosed liquid is transmitted equally in all directions. A small piston is used to pressurize the liquid, and this pressure is magnified in a larger piston due to the difference in their surface areas, allowing the jack to exert great lifting force with little effort. Common components include compressible fluid, pistons, valves, and a scissor mechanism to achieve lifting through a linked folding structure.
The document discusses the development of an electric car jack that can be automatically operated from inside the vehicle to make changing tires and performing repairs easier, especially for the elderly, disabled, and women. Current manual car jacks require significant physical effort and are difficult to use, while commercial lifts are too large and expensive for individual car owners. The proposed electric screw jack integrated into the vehicle aims to provide automatic and easy lifting of the car for repairs without much physical effort.
Integration of Additive Manufacturing (AM) with IoT : A Smart Manufacturing A...ASHISHDESAI85
Ìý
Combining 3D printing with Internet of Things (IoT) enables the creation of smart, connected, and customizable objects that can monitor, control, and optimize their performance, potentially revolutionizing various industries. oT-enabled 3D printers can use sensors to monitor the quality of prints during the printing process. If any defects or deviations from the desired specifications are detected, the printer can adjust its parameters in real time to ensure that the final product meets the required standards.