Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A precast concrete step unit formed of left and right sidewalls, risers, and treads, wherein left and right sidewalls are assembled from a plurality of pre-cast sidewall panel modules, including at least one stepped panel module and at least one rectangular panel module. The panel modules are joined edge-to-edge at seams, with cement and/or with hardware. Pre-cast concrete tread modules extend at least between the left and right sidewalls and are mounted onto respective stepped edge surfaces of the right and left sidewalls. Pre-cast concrete riser modules also extending at least between the right and left sidewalls and mounted onto tread modules. These each extend vertically to successive stepped edge surfaces. Reinforcing cross brace members are fastened to the inward surfaces of the left and right sidewalls and extend at crossed diagonals between them. The precast modules each weight about 200 pounds or less and can be carried by two workmen. One-piece concrete footing pieces can be used to support the lower edges of the sidewall panel modules.
A precast concrete step unit formed of left and right sidewalls, risers, and treads, wherein left and right sidewalls are assembled from a plurality of pre-cast sidewall panel modules, including at least one stepped panel module and at least one rectangular panel module. The panel modules are joined edge-to-edge at seams, with cement and/or with hardware. Pre-cast concrete tread modules extend at least between the left and right sidewalls and are mounted onto respective stepped edge surfaces of the right and left sidewalls. Pre-cast concrete riser modules also extending at least between the right and left sidewalls and mounted onto tread modules. These each extend vertically to successive stepped edge surfaces. Reinforcing cross brace members are fastened to the inward surfaces of the left and right sidewalls and extend at crossed diagonals between them. The precast modules each weight about 200 pounds or less and can be carried by two workmen. One-piece concrete footing pieces can be used to support the lower edges of the sidewall panel modules.
Modular precast concrete steps
SMITH WILLIAM H (Autor:in)
14.11.2017
Patent
Elektronische Ressource
Englisch
IPC:
E04F
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
,
Ausbau von Bauwerken, z.B. Treppen, Fußböden