Straight joint for sandwich panels and method of fabricating same

Abstract

A straight joint and method for connecting two adjacent construction elements, such as sandwich panels, so as to reduce or minimize thermal bridging across the elements. The sandwich panels each have a core, an outer layer, a cavity defined by a portion of the core, and a pathway through the outer layer to the cavity. The panels are erected such that the panel cores are in contact with one another. Bonding material is injected into the cavity through the pathway to seal the joint and maintain the panels in fixed relation to one another.

Description

TECHNICAL FIELD OF THE INVENTION[0001]The present invention relates generally to constructing buildings, and more particularly, to connecting adjacent sandwich panels with a straight joint without creating a thermal bridge across the joint.DESCRIPTION OF THE RELATED ART[0002]There is an increasing demand for lower-cost buildings such as houses, warehouses and office space. The demand for lower cost buildings is particularly strong in developing countries where economic resources may be limited and natural resources and raw materials may be scarce. For example, in areas of the Middle East or Africa, conventional building materials such as cement, brick, wood or steel may not be readily available or, if available, may be very expensive. In other areas of the world, poverty may make it too costly for people to build houses or other buildings with conventional materials.[0003]The demand for lower-cost housing also is high in areas afflicted by war or natural disasters, such as hurricane...

AI Technical Summary

Benefits of technology

[0005]The present invention provides an alternative to conventional construction materials and techniques. Buildings, such as houses, commercial buildings, warehouses, or other structures can be constructed by composite sandwich panels, which have an insulative core and one or more outer layers. The buildings can be constructed by connecting several sandwich panels together with a bonding material, and usually screws, rivets, nails, etc., are not needed for such connections. Generally, composite sandwich panels offer a greater strength to weight ratio over traditional materials that are used by the building industry. The composite panels are generally as strong as, or stronger than, traditional materials including wood-based and steel-based structural insulation panels, while being lighter in weight. The composite sandwich panels also can be used to produce light-weight buildings, such as floating houses or other light-weight structures. Because they weigh less than traditional building materials, composite sandwich panels are generally less expensive to transport.

[0006]Sandwich panels are generally more elastic or flexible than conventional materials such as concrete, steel or brick and, therefore, monolithic buildings made from sandwich panels are more durable than buildings made from conventional materials. For example, sandwich panels also may be non-flammable, waterproof and very strong and durable, and in some cases able to resist hurricane-force winds (up to 300 Kph (kilometers per hour)). The panels also may be resistant to the detrimental effects of algae, fungicides, water, and osmosis. As a result, buildings constructed from sandwich panels are better able to withstanding earthquakes, floods, tornados, hurricanes, fires and other natural disasters than buildings constructed from conventional materials.

[0009]The pathway between the panel cores is closed by the bonding material, which also holds or secures the panels to one another to form a rigid, monolithic wall. The resulting straight joint minimizes, reduces or eliminates thermal transmissions from one side of the panel to the other side of the panel.

[0019]According to another embodiment of the straight joint, the panel cores inhibit thermal transmissions across the joint.

Problems solved by technology

The demand for lower cost buildings is particularly strong in developing countries where economic resources may be limited and natural resources and raw materials may be scarce.

For example, in areas of the Middle East or Africa, conventional building materials such as cement, brick, wood or steel may not be readily available or, if available, may be very expensive.

In other areas of the world, poverty may make it too costly for people to build houses or other buildings with conventional materials.

These devastating events often lead to widespread destruction of large numbers of buildings and houses, especially when they occur in densely populated regions.

The rebuilding of areas affected by these events can cause substantial strain on the supply chain for raw materials, making them difficult or even impossible to obtain.

Furthermore, natural disasters often recur and affect the same areas.

If a destroyed building is rebuilt using the same conventional materials, it stands to reason that the building may be destroyed or damaged again during a similar event.

Prefabricated buildings, however, are made from conventional materials that may be scarce or expensive to obtain.

Thermal bridges are particularly undesirable for external walls of a structure where temperatures may vary greatly from the outside of the structure to the inside of the structure.

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