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  1. Match the definitions with the appropriate words.

  1. a girder a)a horizontal member spanning an opening and

carrying a load

  1. a bridging anchor b) a horizontal member carrying a load of a floor

  2. a floor joist c) a diagonal brace between the horizontal beams

  3. a roof joist d) a large beam carrying the ends of other beams

  4. a beam e) a horizontal member carrying a load of a roof

  1. Agree or disagree with the following statements.

  1. Joists are laid in a parallel series across the girders or a bearing wall to which they are attached.

  2. To provide a smooth horizontal the ends of the joists are grooved.

  3. Additional strength may be given in the form of joist anchors between the horizontal beams.

  4. Beams may be of wood, steel or other metals, reinforced or prestressed concrete, plastics.

  5. Stone is easier to cut and transport in comparison with timber.

  6. Timber has a good tensile as well as compressive strength.

  7. Iron beams became structurally important elements only in the late 18th century with the widespread introduction of prestressed concrete.

  8. Reinforced concrete became a highly versatile structural material.

  1. Fill in the gaps with the words from the text.

  1. In building construction a beam is a horizontal member … an opening and … a load

  2. The load may be a floor or roof in a building, in which case the beam is called a floor … or a roof … .

  3. Bridging anchors are diagonal … between the horizontal beams.

  4. Beams may be even brickwork with steel … in the bond between bricks.

  5. Timber has a … strength along the grain to match its … strength.

  6. Reinforced concrete became a highly … structural material.

  1. Answer the following questions.

  1. What is a beam?

  2. What types of beams do you know?

  3. What are joist anchors used for?

  4. How may the additional strength to the floor be given?

  5. What materials are beams made of?

  6. Why is timber better material than stone?

  7. When did iron become important?

  8. What are the advantages of reinforced concrete beams?

  1. Give the English equivalents.

  • более подходящий материал

  • универсальный строительный материал

  • металлическая арматура

  • широкое распространение чугуна

  • размещение стержней арматуры

  • по направлению волокна

  • обеспечивать большую жесткость

  • под контролем проектировщика

  1. With your partner compare the structural characteristics of timber and stone beams. Speak on the usage of iron and reinforced-concrete beams.

  1. Read the text and describe Light Beams. Say what projects they are designed for.

Lightweight steel beams and joists introduced

Fabricated from cold-rolled steel, the new Light Beam structural Beams and joists are up to 55 percent lighter than conventional hot-rolled I-beams according to LBN Corporation, a research and development company. The design of Light Beam's cross section allows for a combination of different thickness of steel to provide strength where needed while avoiding excess weight. Designed for large commercial and industrial projects, it is believed to be particularly appropriate for seismic and high-wind zones. The beam, 8 to 30 inches deep, can span 75 feet without bracing for practical loading conditions. Light Beams are manufactured from high-strength 50 KSI bare, painted, or galvanized steel; parts are prepunched, precut, and prenotched, and rolled-formed, and joined in an automated process. All connections in the field are made with bolts; welding is not required.