There are two common reasons for opting only to support a structure:
1. You only need a small part of your foundation replaced but the rest of the house, additions or sections are fine and do not need to be lifted.
2. You would like to turn your crawlspace or short basement into a full basement but do not want your house ending up at a higher elevation than what it is now.
Shoring is the provision of temporary support to buildings that are not safe or need to be supported while work is being done. It is important that when cutting new openings in walls for doors and windows or replacing lintels above openings that these are not attempted without first supporting the building. If this work is done without suitable support there is a chance that the building may be damaged or even collapse.
There are a few different Shoring Methods that can be used: raking shores, flying shores and dead shores.
Raking shores consist of inclined boritis called rakers. One end of the raker is placed against the wall whilst the other sits on the ground. They are used to support walls that have begun to lean or bulge. The most effective support is given if the raker meets the wall at an angle of 60 to 70 degrees. In tightly packed areas like the Stone Town, this angle will be determined by the space available, and the width of the footway.When providing support to an unsafe building, it is often necessary to use both raking and dead shores together
Flat boriti struts used to provide temporary support to two parallel walls where one or both show signs of failure. The most common use for this kind of support in the Stone Town is where one house in a terrace has collapsed and some support has been lost to the houses on either side. For distances between walls of up to 9m or less, a single shore may be used. For distances up to 15m, a compound or double flying shore is needed. A single flying shore consists of a horizontal length of boritis set between the walls in need of support. The ends rest on needles set into the wall and are stiffened by inclined struts above and below at either end. The struts also provide added support to the walls and must be set to coincide with floors. As with the raking shore, timbers must be placed with care in order to avoid damage.
Stout boritis placed vertically are used to support floor and roof slabs weakened by rotting boritis. They also form part of the support system needed before new openings can be cut through existing walls. Additionally, dead shores should be used to relieve damaged walls of much of the weight of floor slabs set into them. When used to support floors whilst new openings are cut through the walls the props support needles. Needles are very strong timbers or sections of steel placed right through the wall and at 90 to its face. The needle supports the weight of the work above and transmits it to the dead shore.
When using dead shores to support a failing floor or roof slab it is very important that all of the slabs to the rooms beneath are supported in the same way. This will ensure that the weight of the slab in need of support is carried right through the building and down to the ground. Any cellars or rooms below ground level must also be strutted. Shores are placed on sole plates of timber planking laid parallel to the walls and set about 1/3 of the width of the room in. The purpose of this is to spread the weight transmitted through each of the props over a wider area of slab and make it easier for the props in the rooms beneath to continue the load down to the ground. Directly above the sole plates, heading boards must be nailed to the underside of the boritis of the slab above.
The shores themselves are placed between the two sets of horizontal planks and firmly tightened into position by driving home sets of folding wedges placed between the tops of the shores and the heading boards. The props, when in position, can be further strengthened by nailing planks diagonally across them, reducing any tendency to bend.
If this is something you are looking for foundation support in New Jersey, New York, Connecticut and Houston, Texas please call W.A. Building Movers for a free quote!
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House lifting is the process of separating a building from its foundation and temporarily lifting it with hydraulic screw jacks. The process is the first step in structure relocation in which the building is moved to a different location.
House raising allows you to increase livable space without having to move.House raising can be a less invasive construction process and cost less (than new construction) because you are not disrupting what exists on upper floors.
The process is used when the homes slab and footings are poured together. Initially this involves tunneling under the home and driving push piers based on soil type, to exposing the footing or grade beams.
House Jacking is the process of separating a building from its foundation and temporarily raising it with hydraulic screw jacks. The process is the first step in structure relocation in which the building is moved to a different location.
House moving means picking a house up from its foundation and setting it down elsewhere. See why house moving is an alternative to buying a new house..
Structure Lifting, Lowering, & Sliding. For projects in which cranes or other conventional handling equipment cannot be used because of excessive weight, dimensions or space limitations, the Heavy Lifting System often provides an effective solution.
Foundation Repair and cracking can present significant structural problems for your home along with a reduction in the home’s value. Repairing the foundation of a home is time sensitive—if not repaired quickly, it can lead to additional problems that are unrepairable, and the structure will be unsafe to live in.
Raising a foundation is an extreme form of repair in which a house is lifted, the old foundation is removed and a new one is built. This is done in situations where the house is intact, but the supporting structure has extreme damage.
The term “foundation leveling” refers to the process of leveling an uneven concrete slab, crawl space or basement foundation to a satisfactory elevation. Foundation leveling can be accomplished using a wide-variety of different foundation repair methods.
We have the expertise and the resources to handle any size disaster and can respond immediately to storm and flooding conditions. Professionals are dedicated to responding immediately to water and storm damage emergencies.
Underpinning is the process of strengthening the foundation of an existing building or other structure. Underpinning may be necessary for a variety of reasons: The original foundation isn’t strong or stable enough. The usage of the structure has changed.
House leveling is a term used to describe the process of lifting a home as close to its original state as possible. Leveling a house is usually accomplished by performing foundation repair. A home that is sinking at one end or multiple places likely has a structural problem.
Heavy Equipment & Storage space is a must-have for your super heavy and awkwardly sized equipment, parts, tools, and machinery. WA conveniently store heavy equipment and bulk items from floor to ceiling.
If pyrite or pyrrhotite are present in the rocks underneath buildings, the swelling can push on the foundation, walls, and basement floor of the building, causing cracks and other structural damage. In some cases, groundwater can then transport sulfates into the cracked foundation, causing further damage.
Presence of pyrrhotite in the concrete combined with moisture and oxygen. Critical element is moisture and the interaction of pyrrhotite with moisture and oxygen. Homes with small amounts of pyrrhotite (less than 0.3%) still can experience crumbling foundations.