At present, light wood structure houses account for more than 85% of houses in North America.

Nail, bolt, toothed plate connection and general or special metal connection can be adopted between components, mainly nail connection.

Light wood structure can be used to build residential, small tourism and commercial buildings.

▲ the average wage increase in China’s manufacturing industry 4 has increased the demand for building quality and reliability.

It is a wood structure system integrating load-bearing system and enclosure structure.

With the development of the times and science and technology, modern wood structure buildings adopt new materials, new processes and industrialized precision production.

It is applicable to residential buildings, hospitals, nursing homes, nursing homes, nurseries, kindergartens, sports buildings, etc.

In China, wood structure is mainly used in Low-Rise villas and scenic spot buildings, and is not suitable for solving the housing problem of a large number of people.

Ancient China was once one of the most magnificent periods for the development of wooden structures.

▲ China’s first 300000 ton VLCC cargo ship “yuandahu” 6 energy conservation, environmental protection and green construction.

Moreover, wood itself is a combustible material, and the problem of building fire prevention is prominent.

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Fabricated wood structure ▲ before the invention of steel and cement, wood was one of the main building materials in Beijing Palace Museum.

The mode of workshop production and on-site assembly will greatly reduce the emission of pollutants, allocate the use of resources more reasonably, and achieve the effect of energy conservation and environmental protection.

▲ with the rise of labor cost in canning processing 3 in the past and present, the improvement of people’s living standards and the emergence of aging population, physical strength will become an expensive resource and labor cost will continue to rise.

It has excellent air tightness, water tightness, thermal insulation, moisture retention, sound insulation, flame retardant and other insulation properties.

Glued wood structure is suitable for single-layer industrial buildings and large and medium-sized public buildings with multiple functions, such as stadiums and gymnasiums with large space and large span.

With the rise of China’s comprehensive national strength, it can be seen from the revision of the unified standard for reliability design of building structures this year that our requirements for building engineering construction will only be higher and higher.

▲ log building sanatorium 4 wood structure composite system wood structure composite building refers to a structural system composed of wood structure or its components, components and other materials (such as steel, reinforced concrete or masonry and other non combustible structures).

The log structure is made of square wood, round wood or glued wood components with unified specifications and shapes.

After the rapid development in recent decades, China’s cast-in-situ construction technology can be said to have reached the level of perfection, but why vigorously advocate the development of precast buildings now? Why should China develop precast buildings? 1 urbanization development after the reform and opening up, a large number of agricultural labor force poured into the city, urbanization developed rapidly, the average life span of mankind was prolonged, the total population increased rapidly, and the housing problem became increasingly prominent.

It is not only conducive to the healthy development of the domestic construction industry, but also enables China’s strong engineering construction capacity to serve the world.

▲ a light wood concrete upper and lower composite building wood structure summary wood structure building can achieve harmony and unity between man and nature.

The log building itself has breathability and can adjust indoor humidity.

▲ the earliest precast buildings made of glued wood materials can be traced back to the wooden frame assembled houses used during the immigration to America in the 17th century.

Fabricated steel structure ▲ family insurance company building in Chicago in 1885, the world’s first 42 meter high skyscraper came out, which is located in the family insurance company building in Chicago, USA.

Compared with the lower reinforced concrete structure, the upper wood structure has light weight and less lateral stiffness, and has the characteristics of non-uniform structure with lower weight and upper light, lower stiffness and upper flexibility.

▲ warm water swimming pool in Chaolai City, Hyogo, Japan ▲ Mannheim multi-function hall 3 log structure system.

From the aspects of improving quality, reasonably speeding up the construction period, environmental protection and energy conservation, the precast building under the industrialization mode has unique advantages.

1 light wood structure system light wood structure is a single-layer or multi-layer building structure composed of wood frame wall, floor and roof system made of specification wood, wood-based structural board or gypsum board.

The walls of glued wood houses can adopt light wood structure, glass curtain wall, masonry wall and other structural forms.

Palaces or temples connected by hand-made mortise and tenon emerge one after another.

The traditional construction industry will produce a large number of environmental pollutants such as construction dust, construction noise and construction waste.

Since then, steel has dominated the complex out of gauge buildings such as long-span, ultra-high and special-shaped buildings with its light and high-strength characteristics..

(5) one belt, one road, the domestic construction overcapacity, and the development of cast buildings is conducive to external output capacity.

Today’s wood structure system can be roughly divided into the following four categories.

Compared with traditional wood structure buildings, they have more advantages such as green environmental protection, comfort and durability, thermal insulation and energy saving, structural safety, excellent seismic and sound insulation, and have more advantages than reinforced concrete structures and masonry structures.

The components are mainly connected by bolts, pins, nails, shear plates and various metal connectors.

▲ a large number of rural people flock to cities.

2 with the progress of science and technology and the explosive development of human science and technology, the construction industry will inevitably change from labor-intensive industry to technology intensive industry.

▲ light wood structure system 2 glued wood structure system glued wood structure is a building structure system made of laminated wood components glued with 20 ~ 45mm thick sawn timber.

The three forms of cast structures have their own advantages, and what form should be adopted should be adjusted to local conditions.

The upper wood structure and the lower reinforced concrete structure are connected through bolts and pull-out connectors embedded in the concrete to realize the transmission of horizontal shear in the wood structure and pull-out force in the boundary members of the shear wall of the wood structure.

▲ neat precast building construction site three directions of precast building at present, according to the selection of structural materials, precast building has three main development paths, namely precast wood structure, precast steel structure and precast concrete structure.