As often, people like to compare heritage and modern buildings, observing their pattern; researching their building frame; appreciating their splendid design and in contrast of any different between heritage and modern buildings. Let’s have a look about heritage building. The Taj mahal, a vast white marble mausoleum mosque, is located at the right side of the yamuna river in the city of Agra in uttar pradesh, more than 200 kilometers from new Delhi.It is composed of halls, bell towers, minarets and pools, all of which are made of pure white marble and inlaid with glass and agate.Tagore said the Taj mahal was “a tear on the cheek of eternity.”It also shows the beauty of the Taj mahal and its sad and beautiful story.
I remembered that I’ve watched an American television show, called “Prison Break”, the warden wants to build a Taj mahal model to give his wife as a gift for their fiftieth anniversary of marriage, but due to the complexity of building structure, he can’t do it by himself and he has to ask Michael who majored in architecture of help, Unexpectedly, Michael used this opportunity to escape. You can say that Taj mahal represents love and holiness in our heart, going to the Taj mahal to do pilgrimage or giving a model that it is a way to show your love.
But Taj mahal is turning to yellow and black. For more than 350 years, the monsoon rains in agra have been enough to wash the dust off the walls of the Taj mahal. But as pollution has increased over the past few decades, parts of the marble on the Taj mahal have turned yellow and black. On the other side of the Taj, the winding yamuna river is also being polluted by sewage and waste dumping, attracting millions of mosquito-like insects and worsening the pollution. Insects make their homes on the back of the Taj mahal and excrete a green substance on the walls during mating. Experts have blamed the discoloration on toxic gases from factories along the yamuna river and the burning of feces and garbage around agra, according to new Delhi television. MC Mehta, a lawyer who works to maintain air quality near the Taj mahal, said his battle to move the polluting industries around the monument had been ignored and that “The Taj was dying”, he said sadly. Heritage building need to be protect, We use modern technology to help the ancient architecture keep its original appearance.
Most modern buildings are based on reinforced concrete and then built with various structures, frames or other structures. The characteristic of modern building: exterior modelling is concise, anacreontic, pure and fresh, generous. Good building should use qualified steel, As a Chinese civilization with a long and splendid history of thousands of years, iron smelting is one of the beautiful exotic flowers.After more than 2000 years of development, China’s iron and smelting industry reached its peak in the Ming and Qing Dynasties, and was also in the leading position in the world.
A general term for building materials of black and nonferrous metals and their composite materials with other materials. The construction metal material is one of the three kinds of materials that constitute the material foundation of civil engineering. Metal materials include:
Structure steel, mainly Angle steel, i-steel, channel steel, square steel, crane rail, metal doors and Windows, steel sheet pile steel (see hot rolled steel, cold curved steel, doors and Windows metal). Steel reinforcement used in reinforced concrete structures is divided into wire (5 ~ 9mm in diameter) or small section (>9mm in diameter). The former is hot-rolled coil (including heat-treated steel bar) and the latter one is straight round or threaded steel (see hot-rolled steel bar and heat-treated steel bar for prestressed concrete).
- The plate
It is mainly steel for steel structure, and medium and thick plate and thin plate are mainly used in building structure. Medium and thick plates are widely used in building buildings, structures, vessels and equipment, such as buildings, towers, Bridges, pressure vessels, offshore oil platforms and construction machinery.Thin plate is widely used in roof, wall and floor of building structure (see steel plate, pressure plate) after being pressed and shaped. All of these steel materials in Asia market sell as competitive price with such good quality, certainly we may refer as Tata Steel, JSW Steel or SAIL in India local market, and also sinosources.com as famous steel online platform in China recent years.
Mainly used in steel structures such as truss and mast (see steel pipe).
Waste metal products. The main products used in civil engineering are steel wire (including wire for welding rod), wire rope, prestressed steel wire and twisted wire. The low-carbon steel wire in the steel wire is mainly used for tower frame cabling, binding steel bar and scaffolding, making round nails, screws, etc., as well as cold-drawn low-carbon steel wire for steel mesh or small prestressed components. Prestressed steel wire and its twisted wire are the main materials of prestressed structure.
Both modern architecture and ancient architecture are the essence of human wisdom and will become the witness and milestone of the development of human civilization.