Multistoried building load-bearing structure with concrete exterior structure and masonry envelope load-bearing internal structure

Abstract

The utility model relates to a load-bearing structure of a multi-storey building with a concrete structure on the outside and a load-bearing masonry inside, which relates to a load-bearing structure of a multi-storey building. The invention comprises an external concrete structure (1), an internal seismic load-bearing wall of masonry (5), and a ring beam (8), the external concrete structure (1) and the ring beam (8) are integrally poured and integrated, and the ring beam ( 8) Corresponding up and down with the inner seismic load-bearing wall (5) of the masonry. The present invention uses the concrete structure to bear the load in the outer wall of the multi-storey building, and the internal layout of the building plane is still designed according to the form of the masonry structure, and the masonry structure is used to bear the load. The invention has the advantages of replacing the solid clay brick used in the outer wall, reducing the weight of the outer wall, being beneficial to earthquake resistance, increasing the indoor use area, being beneficial to heat preservation, and not increasing project investment.

Description

Technical field: [0001] The invention relates to a load-bearing structure of a multi-storey building. Background technique: [0002] (1) The situation of wall reform: For many years, sintered solid clay bricks have been used as load-bearing wall materials for multi-storey buildings because of their low price and convenient construction. They have always been the main wall materials for building houses in my country and even in many countries in the world. The production of solid clay bricks is facing serious problems of land resource shortage and environmental damage. The Chinese government has issued an order to gradually ban the use of solid clay bricks. It has been "banned" in many big cities. The wall reform (referred to as wall reform) is currently underway ), replacing traditional solid clay bricks with new wall materials as the load-bearing walls of multi-storey buildings. The existing structural stress systems include frame structure, frame shear wall structure, she...

AI Technical Summary

Problems solved by technology

The existing structural stress systems include frame structure, frame shear wall structure, shear wall structure, steel structure, wood structure, bottom frame-seismic wall structure, masonry structure, including brick masonry structure and block masonry structure , including multi-row column internal frame structure, but there is no external concrete structure-internal masonry anti-seismic load-bearing wall structure of multi-storey buildings, all of which are built according to the traditional and customary way of building multi-storey and low-rise civil buildings. It is because non-energy-saving buildings were built in the past, because it is cheap and convenient to build non-energy-saving buildings with clay bricks, so there is no need for buildings with external concrete and internal masonry anti-seismic wall structures

Now in multi-storey buildings, the products that replace the load-bearing of clay bricks with wall reform are mainly concrete load-bearing hollow blocks and sintered non-clay load-bearing hollow bricks, that is, the outer walls that were originally borne by solid clay bricks are made of concrete load-bearing hollow blocks or sintered non-clay. The difficulty in promoting new wall materials for the replacement of load-bearing hollow brick walls is that the price of new wall materials is high and the investment in equipment is large: therefore, for small and medium-sized cities, especially in underdeveloped areas, due to the small amount of construction, no matter in terms of equipment investment or construction In terms of cost, it is difficult to introduce new wall production equipment for wall renovation. Now wall renovation is mainly carried out in big cities and developed areas

(2) The outer wall of a multi-storey building is in a disadvantageous state than the inner wall: when the load-bearing inner wall of a multi-storey building, that is, the seismic load-bearing wall, is within the range not greater than the distance specified in the "Code for Seismic Design", the inner seismic load-bearing wall The force is mainly axial force and shear force. There are few openings for doors and windows in the inner wall and they are central compression members. Therefore, it is very beneficial to use masonry to bear the load, which can not only play the role of load bearing but also play the role of separating rooms; but more The external wall stacks of multi-storey buildings at the non-seismic walls are in an unfavorable state. This is because the floor plan of multi-storey buildings generally has many types of units and complex planes. The outer wall at the wall is a member subjected to compression and bending. The masonry structure is a brittle material with poor elastic modulus. When the section thickness is small and the bending stiffness is small, the force on the outer wall is very unfavorable, especially when concrete load-bearing blocks are used as The outer wall is only 190mm because the section of the masonry is too thin. This problem is more prominent. Buildings with concrete load-bearing blocks should not have large open rooms, which limits the structural design of the building.

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