Abstract: A plurality of pre-formed panels are provided. Each panel comprises construction boards held apart from each other by spaced apertured metal strength members (2) to form a sandwich construction. Each strength member is provided with at least one bar (10) extending beyond an edge of the construction boards. Each strength member has a bar receiving portion (63) associated with its end opposite the at least one bar. To construct a wall, a first such panel is first erected with its strength members (2) extending vertically and with the bars (10) projecting above the remainder of the panel. The void between the construction boards is then filled with a settable material. A second panel is located vertically above the first by slotting the bars of the first panel into bar receiving portions of strength members in the second panel. Thereafter, the void between the construction boards of the second panel is filled with the settable material.

Abstract: A plurality of pre-formed panels are provided. Each panel comprises construction boards held apart from each other by spaced apertured metal strength members (2) to form a sandwich construction. Each strength member is provided with at least one bar (10) extending beyond an edge of the construction boards. Each strength member has a bar receiving portion (63) associated with its end opposite the at least one bar. To construct a wall, a first such panel is first erected with its strength members (2) extending vertically and with the bars (10) projecting above the remainder of the panel. The void between the construction boards is then filled with a settable material. A second panel is located vertically above the first by slotting the bars of the first panel into bar receiving portions of strength members in the second panel. Thereafter, the void between the construction boards of the second panel is filled with the settable material.

Abstract: A connector which provides a joint between two double skin composite panels of a structure. Each double skin composite panel comprises a pair of metal icing plates joined together by a plurality of cross-members and filled , at least partially, with a cementitious filler material. Each cross-member is connected to both facing plates and the connector comprises one or more seamless sections.

Abstract: A double skin composite panel comprising two steel facing plates of thickness between 2 mm and 32 mm is joined together by cross-members. Each cross-member is aligned generally normal to the facing plates and is spaced from its neighboring members by a distance of between 10 and 80 times the thickness of the centers of the facing plates, the separation between the facing plates being between 30 mm and 800 mm. A filler material, e.g. concrete, is introduced into the spacing between the facing plates.