Old Structural Floor Systems Concrete With Arches

Arches catenaries and beams.

Old structural floor systems concrete with arches. There are number of factors that influence the economy of floor systems such as building type architectural layout span length between columns and aesthetic features. Techspan is a three hinged precast concrete arch system consisting of half arch units that meet at the crown supported by precast or cast in place footings sized for site specific conditions. Mse walls are easily customized and built at the ends of the arch tunnel forming a standalone bridge tunnel or hydraulic structure. Four types of concrete floor systems are used in icf home construction.

Cast iron wrought iron structural steel and reinforced concrete framing systems terra cotta arch construction cinder concrete slabs and many proprietary systems were introduced during this period. The dense structural blocks have tremendous strength and are incredibly light weight as compared to any other masonry building material. This is not an arch system it is exactly what stevenspm states using tile as a stay in place form. The standard thicknesses for exterior wall blocks was 6 8 or 12.

Floor systems can be divided into three broad groups. The 12 inches is the vertical depth from the bottom of the concrete joist web up to the bottom of the slab. Concrete on steel joists concrete on steel deck concrete slab and joist and precast concrete. This is a renovation project and no structural drawings are available.

The years between the 1870s and 1940s represented a golden age of new technology in structural systems. Also called building tile structural terra cotta hollow tile and clay block the material is an extruded clay shape with substantial depth that allows it to be laid in the same manner. In increasing their buildings resistance to fire floor systems have typically been made of masonry and concrete. They were heavy and the arched nature of the construction required significant amounts of plaster mortar cement or concrete to flatten the floors and ceilings.

Then you have 2 1 2 of slab for a total joist height of 14 1 2. Over 4 storeys i ve always seen a steel structural skeleton with the blocks used as infill. But this cost differential narrows in designs with very long clear spans over 20. I am trying to assess the load carrying capacity of the floor.

Based on the drawings put together by a firm that has done a very basic inspection the building uses clay tile arched floor system with steel beams spaced at 6 0 o c. A typical flooring system would involve a span of iron joists at regular intervals spanned by flattened brick arches 5 brick spans were problematic however. 12 was the most common for 3 or 4 storeys. These cate gories are of course the three basic methods of supporting vertical load across a horizontal span but.