arcauated structure

different types of structure one of them is arcuated structure

1. ARCUATED STRUCTURE PRESENTED TO AR. KUMAR ABHISHEK AR. ANIQA SAUD PRESENTED BY RUSHALI SRIVASTAVA AKASH MEGHA SINGH ZUBAIR

2. ARCUATED A term applied to a building structurally dependent on the use of arches or the arch principle

3. ARCUATED STRUCTURE h Arch Vault Dome

4. Arch Definition A curved structure member that is used to span an opening and to support loads from above. The arch is basic element for the make of the vault and domes . Is an essential element of the architecture of early civilizations.

5. Classification of arches 1- According to Geometry 2-According to number of centers 3-According to materials

6. According to Geometry Segmental arch Horse shoe arch Pointed arch semi circular arch Lancet arch

7. 2- According to number of centers

8. 3-According to Materials 1-Brick arches A-rough brick arches / un wedge B- Axed brick arches / wedge shape 2- Stone arches A- Rabble b- Ashlar 3- Concrete arches (Modern arches) A-pre cast concerted b- Monoliths concrete 4- wooden arch

9. Technical parts:

10. structural behaviour Forces acting in arches and vault are characterized by a thrust. Intensity of horizontal thrust is generated by the weight of the voussoir . A ction of different voussoir on below ones create a line of thrust. L ine of thrust determine the stability of arch and vault.

11. Main Construction Technique Centering frame work from wood

12. Vault Vault

13. vault Definition Vaults are extended arches used to create large open rooms and high, covered passageway. Is an arch shaped structure usually of masonry used as the ceiling of room or other enclosed space

14. Materials A –Brick B- Concert C - stone D-timber Geometry It made from extension the arch element Building techniques 1- Ribbed vault 2- Quad partite ribbed vault 3- Gross vault 4- Cloister vault 5-Light vault 6-Fan vault Classification of Vault

15. Main Construction system As like arch the centering is a main construction method for vault

16. A corbel arch- is an arch like construction method that uses the architectural technique of corbelling to span a space or a void in a structure such as an entranceway in a wall or as the span of a bridge. Corbelled

17. RADIATING :An arch in which each voussoir is carved with motifs placed along the radius of the arch. (as opposed to a tangential arch). RADIATING ARCH

18. A dome is a hollow semi-spherical structural element Domes evolved from arches, by rotation arch 360 degree DOME

19. Types of Domes 1- According to Geometry Semi circular dome HEMISPHERICAL DOME

20. Onion dome:- Is a dome tapering smoothly to a point 1- According to Geometry Saucer dome :- it’s a low pitched shallow dome

21. 2- According to Building technique Corbel dome Geodesic dome Monolithic dome Umbrella dome dome on pendentives Squinch dome

22. Domes are also characterized by a thrust. When a dome is generated by interaction of two vault similar forces are applied on it. And additional circular force act on it due to construction of dome in a circular manner around a vertical axis. This is the force which help in balancing the dome. Load transfer in dome

23. A pendentive is constructive device which allows the placement of the circular dome over the square room or elliptical over the rectangular room. pendentives A squinch in architecture is a construction filling in the upper angles of a square room so as to form a base to receive a dome. squinch

24. Dome on Pendentives and squinch

25. How Arch Convert to Vault and dome

26. CASE STUDY ON

27. Case Study : Bara Imambara The Bara Imambara is a famous monument of Lucknow with historical, cultural and heritage importance Bara Imambara was built in 1784 by the Nawab of Awadh , Asaf - ud-Daula . It is for this reason that it is of known as Asafia imambara . It is said that the bara Imambara is the world's largest arched room without any pillars and the Nawabs used to hold their public hearings here. Have a circular garden in center enclosed by arcaded cloisters.

28. CONSTRUCTION DETAILS The whole building is made of Lakhanui bricks (small size brick No wood or metal has been used in the construction. This special contemporary style of construction makes the structure unique and amazing s ) and lime plaster. The main hall of the Imambara is 162 ft (‪49.3776m)‬ in length and 53 ft. 6 in .(16.33m) wide. The arched roof of this vaulted hall has , no beams or intervening supports appear to hold the 16 ft. thick slab which is estimated to be 2,00,000 tons in weight. The Kharbooja Hall

29. CONSTRUCTION DETAIL The ceiling of the h all is 50 ft (15.2m). high above the floor . It is a four- storey building where each floor is very much different from the other one. Designed by architect Kifayt Ullah The amazing hollow walls of the central hall not only keeps it cool during summer but also help to lighten the load of the structure . Magnificent labyrinth with 489 identical doorways and more than 1000 passages. PASSAGES ROOF

30. FRONT ELEVATION

31. MATERIAL FOR ARCUATED STRUCTURE Iron Wrought iron Cast iron Steel Stainless steel Concrete Reinforced concrete Prestressed concrete Aluminium Alloy Masonry Timber

32. HOW MUCH WIDE WE CAN TAKE A SPAN OF DOME …? Domes in this span range cover about a hectare, or roughly the area of one football field . Covering areas of this size without columns was an impossible task until the advent of metal structures in the late 19th century. Following are some examples : Marchwood Silverdome: The Veolia Marchwood silver dome is masterful in its architecture with twin chimneys Stretching upward through the elegantly curved roof . Designed by renowned French architect Jeanrobert Mazaud , became a reality in 2007. its spans 110m

33. HOW MUCH WIDE WE CAN TAKE A SPAN OF DOME …? Mexico City Velodrome :  a long span sports and performance venue, is the 80 x 120m Belem Guerrero Velodrome in Mexico City. its span is 115m it serves as a training and practice facility for cyclists. also transforms into an arena of music and interesting lighting for live performances and the production of music videos