2012年9月24日星期一

When we refer to scaffolding

As you can tell, there are numerous points to remember when it comes to scaffolding. Using scaffolding incorrectly can be very dangerous, and life threatening to the people utilising it and around it. It is crucial that all these safety measures are adhered to strictly, and that scaffolding is always constructed by a qualified person.
When we refer to scaffolding we mean the temporary structures designed to support buildings and people during the repair and construction processes gyq4dqd. This system of metal pipes offers a safe way to access the buildings being worked on and a safe place to carry out this work.
 
The earliest forms of these structures are thought to date back to the early 5th century BC where they were depicted on the Berlin Foundry Cup - a drinking cup which has been an important source of ancient Greek metal-working technology. The ancient Egyptians, Nubians and Chinese are also recorded as having used these structures to construct tall buildings.
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2012年9月20日星期四

Erect Your Scaffolding Sructure Safely

Lay out a sturdy platform that will hold the weight of workers and construction supplies. Aluminum or framed plywood decks are available that lock onto scaffolding supports. Follow American National Standards Institute guides for lumber safety if wood planks are used. Lay planks on the support bars with no more than an inch between the boards.
Run toe boards and railing to hold tools and workers on the platform gyq6dra. Cut 2 by 4 lengths to fit between the framing sides and across the ends of the frames. Lay the toe boards at the base of the platform. Place guard rails 19 inches and 42 inches up from the platform. Run additional guard rails between the building and any opening in the scaffold. Secure rails and toe boards with tie wire #18. California law requires railings in place for all scaffold platforms over 7 feet high. Other states call for railings on platforms over 10 feet high.

Use ladders to reach the platforms instead of having workers climb up the frames. Place a ladder firmly against the platform end and secure it on the frame with wire.
Build the staging up to a second level. Set coupling pins on top of the open frame tubes on the first level. Place a frame side over the pins and lock it on with cotter pins. Have your helper hand the frames and braces up to you from the lower level. Work with your helper as a team to attach the cross braces at both ends of the upper level. Move the platform deck or planks from the first level up to the second. Affix toe boards, guard rails and an access ladder for the second platform.
Secure the staging against the building. Clamp wall brackets to the scaffold framing and nail them into the frame of the building every 16 feet up and every 16 feet across. Wire ties help support building braces, but are not secure enough to be used exclusively as braces
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2012年9月8日星期六

Mobile Scaffold Makes Your Construction Work More Convenient

scaffolding towers are used around the world as a stable platform at height, from which work can be done to the outside or inside of a building, a wall or any other construction of considerable size. These towers are generally more stable than ladders because towers sit square on the ground and are not leaned at an angle against a building or wall. A scaffolding tower facilitates work because it provides increased mobility to work-men which, in turn expedites the job. Tasks like painting, for example, take less time because the work-men don't constantly need to reposition ladders. A properly set up scaffold is considered much safer than a ladder. In many scaffolds a work cage is mounted on a columnar support structure which is usually telescopic in nature so as to be compact for mobility and storage and vertically extendible, manually, pneumatically, or hydraulically, so as to permit the workman to reach substantial ceiling heights. As scaffolding tasks are usually mobile in nature, it is very important to know more about the mobile Scaffolds.

These are Aluminum Scaffolds, conventionally mounted on lockable casters to permit the scaffolds to be moved from place to place when the casters are unlocked and to permit the scaffold to be immobilized when the casters are locked gyqdhyo. However, some type of work may require frequent movement of the scaffold at a work site, as for example, when ceiling lights are replaced. In such situations, and in complete disregard of manufacturer's recommendation and safety regulations, the workman may deliberately choose to leave the casters unlocked. By so doing, workman is then able to mount to and stay in the elevated cage and move the scaffold along the floor by grasping the ceiling or wall and exerting a horizontal pull to roll the scaffold on its unlocked casters. Or else, another workman can be at the base of the scaffold, pushing the scaffold along the floor. Common types of mobile scaffolding include ladder jack scaffolding and pump jack scaffolding. In ladder jack scaffolding, the work surface rests on the side brackets.
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2012年9月6日星期四

Banaszynski (2000) provides another example of instructional scaffolding

Banaszynski (2000) provides another example of instructional scaffolding in his article about a project in which a group of eighth-grade history students in Wisconsin examined the Revolutionary War from two points of view—American and British. He began by guiding his students as they undertook a sequential series of activities in order to thoroughly investigate the opposing reactions to causes of the war. Then students contributed to a class timeline which detailed causes, actions and reactions. Banaszynski describes how work continued:
“ After the timeline was completed, the students were arranged in groups, and each group did a critical analysis of primary-source material gyqdlon, focusing on the efforts each side made to avoid the war. This started students thinking about what the issues were and how each side handled them. The next step was to ask a question: Did the colonists have legitimate reasons for going to war against Great Britain? [I] asked each group to choose either the Patriot or Loyalist position and spend a day searching the Internet for primary sources and other materials to support their positions.”

The instructor continued scaffolding by interviewing the groups to probe for misconceptions, need for redirection, or re-teaching. Students later compared research and wrote essays that were analyzed and evaluated by fellow students using rubrics; groups then composed essays that included the strongest arguments from the individual works. The project, Banaszynski says, was an enormous success; students began the unit working as individuals reliant upon him for instruction. As work proceeded, the feedback framework was altered so that students were guiding each other and, in turn, themselves. Banaszynski’s role in guiding the research and leading the reporting activities faded as the project continued and requirements became more complicated. As a result, students were able to appreciate their mastery of both materials and skills.
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2012年9月3日星期一

The DIY Step Ladder Scaffold

Are you working on a home project that requires a ladder, just to find that moving the ladder over and over and over again is the worst part of the project? If so, it's time to think about making a scaffolding from two step ladders. You won't have to go up and down the ladder nearly as many times.
Get two ladders that are of the same style and height. This is important because you will want the steps to be even so your scaffolding doesn't slant.

Open the ladders. You will need the back side of each ladder to face the other. For the old fashioned step ladder, this is the side with rungs and not steps. Some of the newer ladders are the same on both sides, so it doesn't matter. Space the two about 6 feet apart.
Secure a platform between the two. The platform can be either a 2-by-12, 8-foot wood board or a metal scaffolding found at most hardware stores.
Place the scaffolding on the same step of each ladder by sliding it through the ladder frame and allowing it to sit when there is a minimum of 6 inches of board extending out the front of each ladder.
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2012年9月2日星期日

Common Materials of Scaffolding

Tubes are either steel or aluminum, although composite scaffolding uses filament wound tubes of glass fiber in a nylon or polyester matrix. If steel they are either 'black' or galvanized. The tubes come in a variety of lengths and a standard diameter of 48.3 mm. (1.5 NPS pipe). The chief difference between the two types of tubes is the lower weight of aluminum tubes (1.7 kg/m as opposed to 4.4 kg/m) and also a greater flexibility and so less resistance to force. Tubes are generally bought in 6.3 m lengths and can then be cut down to certain typical sizes.
Boards provide a working surface for users of the scaffold. The board ends are protected by metal plates called hoop irons or sometimes nail plates. Timber Scaffold boards in the UK should comply with the requirements of BS 2482. As well as timber, steel or aluminum decking is used or laminate boards. Couplers are the fittings which hold the tubes together. The most common are called scaffold couplers, there are three basic types: right-angle couplers, putlog couplers and swivel couplers. .

Boards provide a working surface for users of the scaffold. The board ends are protected by metal plates called hoop irons or sometimes nail plates. Timber Scaffold boards in the UK should comply with the requirements of BS 2482. Couplers are the fittings which hold the tubes together. The most common are called scaffold couplers, there are three basic types: right-angle couplers, putlog couplers and swivel couplers. To join tubes end-to-end joint pins (also called spigots) or sleeve couplers are used, or both together. Only right angle couplers and swivel couplers can be used to fix tube in a 'load-bearing connection'. Single couplers are not load-bearing couplers and have no design capacity.
Other common materials include base plates, ladders, ropes, anchor ties, reveal ties, gin wheels, sheeting, etc.
Despite the metric measurements given many scaffolds measure tubes and boards in imperial units. With tubes from 21 feet down and boards from 13 ft. down.
Ladder Style Scaffold Frame

2012年9月1日星期六

spoken and the best scaffolding contractor can be found at our company

The Consumers Choice Awards provide a service throughout North America by promoting business excellence amongst local communities. This program is designed to allow Consumers the opportunity to reward Companies that have provided the most pleasurable business experience. Leger Marketing an independent research firm has been contracted by the Consumers Choice Awards to conduct the Consumer surveys that are used to name businesses with superior conduct. Leger asks the public questions such as where to find the best scaffolding contractor. Public response is used to determine the top businesses in each category then the names of the favored Companies are placed to a vote. The majority of Consumer Votes is used to name the recipients of the award. we have been voted as being the best scaffolding contractor. Local Companies compete yearly for this award, as it is a compliment from the community. The Consumers have spoken and the best scaffolding contractor can be found at our company.

Thank you to the Consumers Choice Awards for continually promoting outstanding relationships between Consumers and local businesses and to Urban Scaffolding for providing the best scaffolding in our company.
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