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بلوک کد اختصاصی

پل ها

پل هادسته: شهرسازی
بازدید: 2 بار
فرمت فایل: doc
حجم فایل: 242 کیلوبایت
تعداد صفحات فایل: 17

A bridge is a structure built to span a gorge valley road railroad track river body of water or any other physical obstacle for the purpose of providing passage over the obstacle Designs of bridges will vary depending on the function of the bridge and the nature of the terrain where the bridge is to be constructed

قیمت فایل فقط 1,000 تومان

خرید

The first bridges were made by nature — as simple as a log fallen across a stream. The first bridges made by humans were probably spans of wooden logs or planks and eventually stones, using a simple support and crossbeam arrangement. Most of these early bridges could not support heavy weights or withstand strong currents. It was these inadequacies which led to the development of better bridges.

قیمت فایل فقط 1,000 تومان

خرید

برچسب ها : پل ها , پل ها , Bridges

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