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HC-Lecture07-Heavy-Timber - Heavy Construction Heavy...

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Heavy Construction Heavy Construction Lecture #07 Lecture #07 Heavy Timber Frame Construction L Prieto-Portar 2008
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Timber Construction History. Until the 1880’s all construction was primarily heavy timber and masonry. The US was covered with forests, and wood was both plentiful and cheap. Furthermore, practically everybody had basic carpentry skills, and many were skilled craftsmen. Most timber connections were made with wood (dowels, wedges, etc), and iron nails and other metal fasteners were expensive. It was common for a family that moved away from a village, to burn down their house in order to recover all the nails and fasteners. Why are there so few timber projects today? Timber has become very expensive. The world’s demand for timber (Japan, China, Europe, etc) has driven up the prices of our own supplies. In addition, there are better structural materials available for residential and commercial projects. In 1884, the Home Insurance Company building in Chicago became the first structural steel building in the world. Shortly after, the combination of concrete with steel reinforcing bars
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HC-Lecture07-Heavy-Timber - Heavy Construction Heavy...

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