China's largest wooden drum tower|Bianjing Tower
Bianjing Tower in Dai County, Shanxi Province, is known as the largest wooden drum tower in China. The building has a unique structure and exquisite design, fully demonstrating the charm of ancient Chinese architectural art.
Architectural features:
Bianjing Building is a three-story, four-eaved, waist-wrapped flat-seat hip roof structure, with each floor being seven bays wide and five bays deep.
There are corridors on the first, second and third floors, and the eaves adopt a hip roof design.
The column grid is uniquely arranged, with three circles of column grids on the first floor: the inner circle is the columns that go straight to the third floor, up to 18 meters high and 55 centimeters in diameter; the middle circle is the columns that go straight to the second floor; the outer circle of columns is shorter, at 3.75 meters.
Brick walls are used to protect the golden pillars and old eaves pillars on the first and second floors to stabilize the pillars.
The building is seven bays wide and five bays deep, with corridors all around, and the structure is compact and rhythmic.
The building is 26.7 meters high, and the upper floor has a double-eaved hip roof.
There is a brothel on the second floor and a platform under the brothel on the third floor, which increases the layering and viewing experience of the building.
There are brackets under the eaves of each floor, with a total of seven types of brackets, and the structure is unique.
Characteristics of Ming Dynasty architecture and the inheritance and innovation of Bianjing Tower:
In the middle of the Ming Dynasty, the prosperous development of agriculture and handicraft economy, the rise of industrial and commercial towns, and the progress of science and technology and culture provided favorable conditions for the development of Ming Dynasty architecture. There are many Ming Dynasty relics in Shanxi, showing the characteristics of the era that are similar to the style of Song and Yuan Dynasties in the early period, conservative and rigorous in the middle period, and complicated in the late period.
Bian Jing Tower has innovated the beam structure points based on the inheritance of the beam structure of the Yuan Dynasty. By simplifying things, many unnecessary complicated components and artistic processing were eliminated, making the structure more concise and clear. At the same time, due to the improvement of technical capabilities, pavilion-style buildings no longer use the fork column structure, but instead use through columns; brackets are often used at the joints between inner columns and beams, lintels, etc.; and cross beams are often placed between eaves columns and golden columns, protruding after intersecting with the eaves columns.
The reason why the amount of dougong materials used in the Ming Dynasty dropped sharply:
The structural relationship between the beam and purlin and the dougong changed: This change shook the dougong's independent load-bearing and irreplaceable position in the cantilevered eaves, reducing the demand for dougong materials.
Timber shortage: During the Ming Dynasty, due to population growth and increased construction demand, timber resources became relatively scarce, which also prompted architects to reduce the use of wooden components such as dougong in their designs.
The popularization of bricks in construction: With the popularization of building materials such as bricks and tiles, people began to use masonry structures to replace traditional wooden structures, which further reduced the demand for wooden components such as brackets.