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A waffle slab or two-way joist slab is a concrete slab made of reinforced concrete with concrete ribs running in two directions on its underside. [1] The name waffle comes from the grid pattern created by the reinforcing ribs. Waffle slabs are preferred for spans greater than 40 feet (12 m), as they are much stronger than flat slabs, flat slabs ...
Since the 1950s there have been several attempts to develop theories for arching action in both one and two-way slabs. One of the principal approaches to membrane action was that due to Park which has been used as a basis for many studies into arching action in slabs. Park's approach was based on rigid plastic slab strip theory, and required ...
A concrete slab is a common structural element of modern buildings, consisting of a flat, horizontal surface made of cast concrete. Steel- reinforced slabs, typically between 100 and 500 mm thick, are most often used to construct floors and ceilings, while thinner mud slabs may be used for exterior paving (see below). [1][2] In many domestic ...
Width. 5 cm (2.0 in) Created. c. 1750 BC. Present location. British Museum, London. The complaint tablet to Ea-nāṣir (UET V 81) [1] is a clay tablet that was sent to the ancient city-state Ur, written c. 1750 BCE. It is a complaint to a merchant named Ea-nāṣir, [a] from a customer named Nanni. It is currently kept in the British Museum. [2]
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The Business Model Canvas is a strategic management template used for developing new business models and documenting existing ones. [2] [3] It offers a visual chart with elements describing a firm's or product's value proposition, [4] infrastructure, customers, and finances, [1] assisting businesses to align their activities by illustrating potential trade-offs.
Slabs are one of the greatest consumers of concrete in many buildings, [14] so reducing the slab mass can make a relatively large difference to the environmental impact of a building's construction. Biaxial slabs may be marginally cheaper than solid slabs, partly due to the lower mass.
The season premiere, which airs Wednesday, Sept. 18, will be a two-hour episode, with subsequent episodes running for 90 minutes. Hosted by Jeff Probst, "Survivor" has been on the air since 2000.