1 / 18

arch

arch. Presentation made by : Karelia DIAZ VANESSA QUINTERO. CONTENTS. WHAT IS AN ARCH? ARCH THROUGH THE AGES HOW IS IT CONSTRUCTED? TYPES OF ARCHES. WHAT IS AN ARCH?. Triumph Arch , Paris. It’s a structure that spans a space and supports structure and weight above it.

libra
Télécharger la présentation

arch

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. arch Presentationmadeby: Karelia DIAZ VANESSA QUINTERO

  2. CONTENTS • WHAT IS AN ARCH? • ARCH THROUGH THE AGES • HOW IS IT CONSTRUCTED? • TYPES OF ARCHES

  3. WHAT IS AN ARCH? TriumphArch, Paris It’s a structure that spans a space and supports structure and weight above it. The arch can be called a curved lintel.

  4. ARCH THROUGH THE AGES Etruscans: The arch was used in any kind of monument. -Gates, bridges, drains- Porta Augusta, EtruscanbuildingwherethearchiscombinedwithGreek ideas.

  5. Romans They took many great strides in the development of the arch. They invented the idea of setting an arch on top of two tall pedestals to span a walkway such as a public highway. Triumphalarch

  6. The Romans used arches for: • Bridges • Aqueducts • Gates • Entrances • - A symbol of military victory

  7. COLOSSEUM: Itsouterwallappears composed almost completely of arches. Barrel vault Groined vault

  8. MEDIEVAL TIMES Arches and butresseswereusedforsupportinggreatweight of stoneceilings in cathedrals. Arches were also often found in long rows in cathedrals to help supporting each other. The pointed arch began to be developed.

  9. MilanCathedral Reims Cathedral

  10. ISLAMIC CULTURE The Islamic arch was found about the same time in the Middle East. Horseshoe-shapedarch Stackedarches

  11. Arches are made of wedge-shaped blocks, called voussoirs. How is an arch constructed? • The topmost voussoir is called the keystone. • Most arches require support from other arches, walls, or buttresses.

  12. In reinforced concrete construction, the principle of the arch is used so as to benefit from the concrete's strength in resisting compressive stress.

  13. Types of Arches • Arches have many forms, but all fall into three basic categories: Circular, pointed, and parabolic. Arches can also be configured to produce vaults and arcades.

  14. Roundedarch Arches with a circular form. Were commonly employed by the builders of ancient, heavy masonry arches. Several rounded arches placed in-line, end-to-end, form an arcade, such as the Roman aqueduct. • Arcade

  15. Pointedarches This innovation allowed for taller and more closely spaced openings, typical of Gothic architecture. • Vaults “Adjacent arches that are assembled side by side.“ “Strongly expressed ribs at the vault intersections, were dominant architectural features of Gothic cathedrals.”

  16. Parabolicarches Of any arch type, the parabolic arch produces the most thrust at the base, but can span the largest areas. It is commonly used in bridge design, where long spans are needed.

  17. Conclusion Nowadays, using construction materials, like iron and steel, allows new ways of designing a modern arch. Also, structural inventions provide a great freedom of design and a means of covering great spans without a massive substructure. This structure is the witness of human history and evolution of architecture.

  18. REFERENCes • http://theriverlands.tripod.com/Writings/Arch/arch.html • http://en.wikipedia.org/wiki/Arch_bridge • http://en.wikipedia.org/wiki/Arch • Encyclopaedia Britannica, vol. 1. Chicago: Encyclopaedia Britannica, Inc., 1974, pp. 1098 - 1099.

More Related