CN106639051B - Steel-building block combined beam for outer leaf wall of block building - Google Patents
Steel-building block combined beam for outer leaf wall of block building Download PDFInfo
- Publication number
- CN106639051B CN106639051B CN201710089956.7A CN201710089956A CN106639051B CN 106639051 B CN106639051 B CN 106639051B CN 201710089956 A CN201710089956 A CN 201710089956A CN 106639051 B CN106639051 B CN 106639051B
- Authority
- CN
- China
- Prior art keywords
- steel
- building
- steel bars
- building block
- composite beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2002/567—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with posts or pillars made from a plurality of smaller prefabricated elements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/90—Passive houses; Double facade technology
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
A steel-building block composite beam for an outer leaf wall of a block building relates to a composite beam. The invention aims to solve the problems that the existing supporting outer leaf wall or the outer leaf wall hung on the overhanging component does not bear load, the outer leaf wall transmits the self weight to the overhanging component, the wall surface thermal bridge has large area and the wall surface has discontinuous decoration. The invention is divided into a small-span steel-building block composite beam and a large-span steel-building block composite beam; the small-span steel-building block combined beam consists of building blocks, bearing angle steel and angle steel stiffening steel bars; the large-span steel-block composite beam is composed of blocks, bearing angle steel, angle steel stiffening steel bars and a space reinforcing mesh. The combined beam realizes the independent bearing function of the outer leaf wall, changes the stress mode of the existing outer leaf wall supported or hung on the cantilever structure, and provides a new stress mode for the design and construction of the outer leaf wall, and the stress mode is safe and reliable, has reasonable stress, higher stability and convenient construction. The invention is suitable for the outer leaf wall of the block building.
Description
Technical Field
The invention relates to the field of building structures in civil engineering, in particular to a steel-building block composite beam for an outer leaf wall of a block building.
Background
The energy consumption of the building industry in China exceeds the total energy consumption of China by more than 30%, and building energy conservation is an important link for realizing sustainable development of resources in China and plays a key role in implementing strategies for energy and resource conservation. The heat preservation performance, the heat insulation performance and the air tightness of the outer wall are important factors influencing the energy saving of the building, and the energy consumption caused by the outer wall accounts for a large proportion of the total energy consumption of the building. As a new type of heat-insulating wall, the sandwich composite wall is made up by sandwiching a certain high-efficiency heat-insulating material between inner and outer leaf walls and then using rust-proof reinforcing steel bars or tie pieces to tie the inner and outer leaf walls into a whole. The sandwich wall can meet the requirements of wall body on heat preservation and heat insulation, and the heat preservation layer has good durability due to the protection effect of the outer leaf wall on the heat preservation layer, so that the problem of durability which cannot be solved by the outer wall outer heat preservation technology is fundamentally solved. Exterior wall decoration plays an important role in wall art, representing the style and image of a building, and the decorative style of a building group represents the image of a city. Therefore, in order to make the exterior wall decoration have regional characteristics and the function of beautifying the environment, the finding of a reasonable and safe sandwich wall exterior wall form is an important problem in the building industry. The external wall can be built by adopting decorative blocks or split blocks, the decorative effect of the blocks is not inferior to that of natural stone, the manufacturing cost of the blocks is more than half of that of the natural stone, and the blocks can be widely popularized and applied in the external wall. Traditional brickwork sandwich wall supports on continuous structure of encorbelmenting, has not only brought the great problem of wall heat bridge area, has still aroused the discontinuous problem of wall brickwork veneer because of the existence of structure of encorbelmenting, consequently, the application and the development of sandwich wall will receive serious restriction.
Disclosure of Invention
The invention provides a steel-building block composite beam for an outer leaf wall of a block building, aiming at solving the problems that the existing outer leaf wall for supporting or hanging on an overhanging component does not bear load, the outer leaf wall transmits the dead weight to the overhanging component, the thermal bridge area of the wall surface is large and the decorative surface of the wall body is discontinuous.
The steel-building block composite beam for the outer leaf wall of the block building is divided into a small-span steel-building block composite beam and a large-span steel-building block composite beam;
the small-span steel-building block combined beam consists of building blocks, bearing angle steel and angle steel stiffening steel bars;
the horizontal limb of the bearing angle steel is arranged below the bottommost building block in the small-span steel-building block combined beam, the vertical limb of the bearing angle steel is arranged between the bottommost building block and the cantilever member in the small-span steel-building block combined beam or between the bottommost building block and the heat insulation material in the small-span steel-building block combined beam, the building block is arranged on the upper surface of the horizontal limb of the bearing angle steel, a plurality of groups of stiffening steel bars perpendicular to the upper surface of the horizontal limb are arranged on the upper surface of the horizontal limb of the bearing angle steel, the plurality of groups of stiffening steel bars are arranged along the length direction of the bearing angle steel, and each group of stiffening steel bars is arranged in a vertical mortar joint of an adjacent building block;
the large-span steel-building block combined beam consists of building blocks, bearing angle steel, angle steel stiffening steel bars and a space reinforcing mesh;
the horizontal limb of the bearing angle steel is arranged below the bottommost building block in the large-span steel-building block combined beam, the vertical limb of the bearing angle steel is arranged between the bottommost building block and the cantilever member in the large-span steel-building block combined beam or between the bottommost building block and the heat insulation material in the large-span steel-building block combined beam, the building block is arranged on the upper surface of the horizontal limb of the bearing angle steel, a plurality of groups of stiffening steel bars perpendicular to the upper surface of the horizontal limb are arranged on the upper surface of the horizontal limb of the bearing angle steel, the plurality of groups of stiffening steel bars are arranged along the length direction of the bearing angle steel, and each group of stiffening steel bars is arranged in a vertical mortar joint of an adjacent building block;
the space reinforcing mesh consists of two parallel longitudinal reinforcing steel bars with equal length, a plurality of transverse reinforcing steel bars between the two longitudinal reinforcing steel bars and perpendicular to the longitudinal reinforcing steel bars, and a plurality of pairs of vertical reinforcing steel bars, wherein the vertical reinforcing steel bars are perpendicular to the planes of the longitudinal reinforcing steel bars and the transverse reinforcing steel bars; one end of one of the vertical steel bars in each pair of vertical steel bars is welded with one end of the transverse steel bar, and the other end of the vertical steel bar is a free end; one end of the other vertical steel bar is welded with the middle part of the transverse steel bar, and the other end of the other vertical steel bar is a free end; the vertical reinforcing steel bars welded with one ends of the transverse reinforcing steel bars on the adjacent transverse reinforcing steel bars are arranged in a staggered mode, and the directions of the free ends of the vertical reinforcing steel bars arranged on the adjacent transverse reinforcing steel bars are opposite; the longitudinal steel bars are arranged in horizontal mortar joints of two vertically adjacent building blocks in the large-span steel-building block combined beam, the vertical steel bars are arranged in vertical mortar joints of two horizontally adjacent building blocks in the large-span steel-building block combined beam, and free ends of the vertical steel bars of two vertically adjacent space steel bar nets in the large-span steel-building block combined beam are in staggered lap joint; the vertical reinforcing steel bars in the vertical mortar joints in the bottom building blocks and the angle steel stiffening steel bars are arranged in a staggered mode;
each group of stiffening steel bars comprises two parallel steel bars, and the distance between adjacent groups of stiffening steel bars is 400 mm; the length of the angle steel horizontal limb is 100mm, and the length of the angle steel vertical limb is not more than 160 mm; the strength grade of the building block is not lower than MU7.5, and the strength grade of the masonry mortar is not lower than Mb 7.5; the size of the building block is 390 multiplied by 190 multiplied by 90mm or 190 multiplied by 90 mm; the height of the stiffening steel bar is less than that of the building block; the diameter of the steel bar of the space steel bar mesh is 4-6 mm; the interval of the transverse steel bars is 200 mm; the transverse steel bars are welded with the longitudinal steel bars; the stiffening steel bars are connected with the bearing angle steel in a welding mode.
The preparation method of the small-span steel-block composite beam comprises the following steps:
firstly, cutting reinforcing steel bars to obtain stiffening reinforcing steel bars, and welding the stiffening reinforcing steel bars with bearing angle steel for later use;
secondly, arranging temporary supports under the bearing angle steel, wherein the support distance is not more than 0.8 m;
and thirdly, building bottom skin building blocks between two groups of adjacent stiffening steel bars on the upper surface of the horizontal limb of the bearing angle steel, and then sequentially building the bottom skin building blocks to the designed height to complete the preparation of the small-span steel-building block combined beam.
The preparation method of the large-span steel-building block composite beam comprises the following steps:
cutting reinforcing steel bars to obtain stiffening reinforcing steel bars, welding the stiffening reinforcing steel bars and bearing angle steel, cutting the reinforcing steel bars to obtain vertical reinforcing steel bars, transverse reinforcing steel bars and longitudinal reinforcing steel bars, and welding to obtain a space reinforcing steel bar mesh for later use;
secondly, arranging temporary supports under the bearing angle steel, wherein the support distance is not more than 0.8 m;
building bottom leather building blocks between two groups of adjacent stiffening steel bars on the upper surface of the horizontal limb of the bearing angle steel, arranging a space steel bar mesh on the bottom leather building blocks, then building a second leather building block on the space steel bar mesh, and finally sequentially arranging the space steel bar mesh and building the space steel bar mesh until the design height is reached, thereby completing the preparation of the long-span steel-building block composite beam; the composite beam built on site needs to be maintained to the designed strength before the construction of the outer wall body on the upper part of the composite beam is carried out.
The invention has the following beneficial effects:
1. the angle steel stiffening steel bars arranged on the bearing angle steel horizontal limbs in the small-span steel-building block combined beam or the large-span steel-building block combined beam enable the interface shear stress of the building blocks and the angle steel horizontal limbs to be uniform and can be effectively transferred, and the building blocks and the angle steel are ensured to work cooperatively; the bearing angle steel has a bearing effect on the building block in the construction stage of the small-span steel-building block composite beam or the large-span steel-building block composite beam, and the bearing angle steel and the building block work cooperatively in the use stage of the composite beam;
2. the invention provides a steel-building block composite beam middle-and-small span steel-building block composite beam for a block building outer leaf wall, which not only serves as a part of the outer leaf wall, but also can bear the self weight of the steel-building block composite beam and the self weight of the outer leaf wall on the composite beam, realizes the independent bearing function of the outer leaf wall, changes the stress mode of the existing outer leaf wall support or suspension on an overhanging structure, provides a new stress mode for the design and construction of the outer leaf wall, and has the advantages of safety, reliability, reasonable stress, higher stability and convenient construction;
3. the steel-building block composite beam for the outer leaf wall of the block building can be built on site and can also be prefabricated in factories;
4. the upper building block of the steel-building block composite beam for the outer leaf wall of the block building can be a common building block or a building block with a decorative function, the lower angle steel can also adopt other forms of section steel, and the space reinforcing mesh can also adopt other materials and forms with a reinforcing function.
5. According to the invention, the vertical steel bars in the space steel bar mesh are arranged in the vertical mortar joints in a staggered manner, and the vertical steel bars at the lower part of the horizontal steel bar mesh are required to be inserted into the vertical mortar joints of the lower-skin building blocks when each layer of steel bar mesh is in place, so that the building quality is not influenced;
6. the outer leaf wall formed by the composite beam has a building facade only containing a building block surface without an overhanging structure or a supporting mechanism surface, and the decoration function and the continuous outer wall veneer of the outer leaf wall can comprehensively improve the decoration function of the outer wall by using the decoration building block or the splitting building block;
7. according to the construction convenience, the space between the steel-building block composite beam supports (namely the span of the beam) and whether a reinforcing mesh is embedded in the mortar joint of the building block can be comprehensively considered;
8. the composite beam does not have a supporting structure exposed outdoors, thereby greatly reducing the heat bridge area of the outer wall surface and further improving the heat insulation effect of the sandwich wall.
Description of the drawings:
FIG. 1 is a schematic structural view of a medium-small span steel-block composite beam for a block building external leaf wall according to the present invention;
FIG. 2 is a schematic structural view of a large-span steel-block composite beam in the steel-block composite beam for the outer leaf wall of the block building of the invention;
FIG. 3 is a schematic structural view of a bearing angle steel 2 in the steel-block composite beam for the block building external leaf wall of the invention;
FIG. 4 is a schematic view of a space reinforcing steel bar net structure in the steel-block composite beam for the outer leaf wall of the block building according to the present invention;
fig. 5 is a schematic structural view of a large-span steel-block composite beam for supporting an outer leaf wall of a block building, which is formed by four blocks.
The specific implementation mode is as follows:
the technical scheme of the invention is not limited to the specific embodiments listed below, and any reasonable combination of the specific embodiments is included.
The first embodiment is as follows: the present embodiment will be described with reference to fig. 1 to 5, and the steel-block composite beam for an external leaf wall of a block building according to the present embodiment is divided into a small-span steel-block composite beam and a large-span steel-block composite beam;
the small-span steel-building block combined beam consists of a building block 1, bearing angle steel 2 and angle steel stiffening steel bars 3;
the horizontal limb of the bearing angle steel 2 is arranged below the bottommost building block in the small-span steel-building block composite beam, the vertical limb of the bearing angle steel 2 is arranged between the bottommost building block and the cantilever member in the small-span steel-building block composite beam or between the bottommost building block and the heat insulation material in the small-span steel-building block composite beam, the building block 1 is arranged on the upper surface of the horizontal limb of the bearing angle steel 2, a plurality of groups of stiffening steel bars 3 perpendicular to the upper surface of the horizontal limb are arranged on the upper surface of the horizontal limb of the bearing angle steel 2, the plurality of groups of stiffening steel bars 3 are arranged along the length direction of the bearing angle steel 2, and each group of stiffening steel bars 3 is arranged in a vertical mortar joint of the adjacent building block 1;
the large-span steel-block combined beam consists of a block 1, a bearing angle steel 2, an angle steel stiffening reinforcement 3 and a space reinforcing mesh;
the horizontal limb of the bearing angle steel 2 is arranged below the bottommost building block in the large-span steel-building block composite beam, the vertical limb of the bearing angle steel 2 is arranged between the bottommost building block and the cantilever member in the large-span steel-building block composite beam or the vertical limb of the bearing angle steel 2 is arranged between the bottommost building block and the heat insulation material in the large-span steel-building block composite beam, the building block 1 is arranged on the upper surface of the horizontal limb of the bearing angle steel 2, the upper surface of the horizontal limb of the bearing angle steel 2 is provided with a plurality of groups of stiffening steel bars 3 vertical to the upper surface of the horizontal limb, the plurality of groups of stiffening steel bars 3 are arranged along the length direction of the bearing angle steel 2, and each group of stiffening steel bars 3 is arranged in a vertical mortar joint of an adjacent building block;
the space reinforcing mesh consists of two parallel longitudinal reinforcing steel bars 7 with equal length, a plurality of transverse reinforcing steel bars 6 and a plurality of pairs of vertical reinforcing steel bars 5, wherein the transverse reinforcing steel bars 6 are arranged between the two longitudinal reinforcing steel bars 7 and are perpendicular to the longitudinal reinforcing steel bars 7, and the vertical reinforcing steel bars 5 are perpendicular to the planes of the longitudinal reinforcing steel bars 7 and the transverse reinforcing steel bars 6; one end of one vertical steel bar 5 in each pair of vertical steel bars 5 is welded with one end of the transverse steel bar 6, and the other end is a free end; one end of the other vertical steel bar 5 is welded with the middle part of the transverse steel bar 6, and the other end is a free end; the vertical steel bars 5 welded with one ends of the transverse steel bars 6 on the adjacent transverse steel bars 6 are arranged in a staggered manner, and the directions of the free ends of the vertical steel bars 5 arranged on the adjacent transverse steel bars 6 are opposite; the longitudinal steel bars 7 are arranged in horizontal mortar joints of two vertically adjacent building blocks 1 in the large-span steel-building block composite beam, the vertical steel bars 5 are arranged in vertical mortar joints of two horizontally adjacent building blocks 1 in the large-span steel-building block composite beam, and free ends of the vertical steel bars 5 of two vertically adjacent space steel bar nets in the large-span steel-building block composite beam are arranged in a staggered lap joint mode; the vertical reinforcing steel bars 5 in the vertical mortar joints in the bottom building blocks and the angle steel stiffening steel bars 3 are arranged in a staggered mode; the transverse steel bars 6 are welded with the longitudinal steel bars 7; the stiffening steel bars 3 are connected with the bearing angle steel 2 in a welding mode.
The embodiment has the following beneficial effects:
1. the angle steel stiffening steel bars arranged on the bearing angle molten steel horizontal limbs in the small-span steel-building block combined beam or the large-span steel-building block combined beam enable the interface shear stress of the building blocks and the angle molten steel horizontal limbs to be uniform and effectively transmitted, and the building blocks and the angle steel are ensured to work cooperatively; the bearing angle steel has a bearing effect on the building block in the construction stage of the small-span steel-building block composite beam or the large-span steel-building block composite beam, and the bearing angle steel and the building block work cooperatively in the use stage of the composite beam;
2. the steel-building block composite beam for the block building outer leaf wall not only serves as a part of the outer leaf wall, but also can bear the dead weight of the steel-building block composite beam and the outer leaf wall on the composite beam, so that the independent bearing function of the outer leaf wall is realized, the stress mode that the existing outer leaf wall is supported or hung on the cantilever structure is changed, a new stress mode is provided for the design and construction of the outer leaf wall, and the stress mode is safe and reliable, reasonable in stress, high in stability and convenient to construct;
3. the steel-building block composite beam for the outer leaf wall of the block building can be built on site and can also be prefabricated in a factory;
4. the upper building block of the steel-building block combined beam for the block building external leaf wall can be a common building block or a building block with a decorative function, the lower angle steel can also adopt other forms of section steel, and the space reinforcing mesh can also adopt other materials and forms with a reinforcing function.
5. According to the embodiment, the vertical steel bars in the spatial steel bar nets are arranged in the vertical mortar joints in a staggered manner, and the vertical steel bars at the lower parts of the horizontal steel bar nets are required to be inserted into the vertical mortar joints of the lower-skin building blocks when each layer of steel bar net is in place, so that the building quality is not influenced;
6. the outer leaf wall formed by the composite beam in the embodiment has the advantages that the building vertical surface only contains the surface of the building block, but no overhanging structure or supporting mechanism surface is generated, the decorative building block or split building block is used for the outer leaf wall, and the decorative function and the continuous outer wall veneer of the outer leaf wall can comprehensively improve the decorative function of the outer wall;
7. according to the construction convenience degree, the space between the steel-block composite beam supports (namely the span of the beams) and whether the reinforcing mesh is embedded in the mortar joints of the blocks can be comprehensively considered;
8. the composite beam does not have a supporting structure exposed outdoors, so that the heat bridge area of the outer wall surface is greatly reduced, and the heat insulation effect of the sandwich wall is further improved.
The second embodiment is as follows: the present embodiment is described with reference to fig. 3, and the present embodiment is different from the first embodiment in that: each group of stiffening reinforcing steel bars 3 comprises two parallel reinforcing steel bars, and the distance between adjacent groups of stiffening reinforcing steel bars 3 is 400 mm. Other steps and parameters are the same as in the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: the length of the horizontal limb of the angle steel is 100mm, and the length of the vertical limb of the angle steel is not more than 160 mm. Other steps and parameters are the same as in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment mode and one of the first to third embodiment modes is: the strength grade of the building block 1 is not lower than MU7.5, and the strength grade of the masonry mortar is not lower than Mb 7.5. Other steps and parameters are the same as in one of the first to third embodiments.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: the size of the building block 1 is 390 multiplied by 190 multiplied by 90mm or 190 multiplied by 90 mm. Other steps and parameters are the same as in one of the first to fourth embodiments.
The sixth specific implementation mode: the present embodiment is described with reference to fig. 2, and is different from one of the first to fifth embodiments in that: the height of the stiffening steel bar 3 is less than that of the building block 1. Other steps and parameters are the same as in one of the first to fifth embodiments.
The seventh embodiment: the difference between this embodiment and one of the first to sixth embodiments is: the steel bar diameter of the space steel bar mesh is 4-6 mm. Other steps and parameters are the same as in one of the first to sixth embodiments.
The specific implementation mode is eight: the present embodiment differs from one of the first to seventh embodiments in that: the interval of the transverse steel bars 6 is 200 mm. Other steps and parameters are the same as in one of the first to seventh embodiments.
The specific implementation method nine: the embodiment is described with reference to fig. 2 to 5, and the preparation method of the small-span steel-block composite beam of the embodiment comprises the following steps:
firstly, cutting reinforcing steel bars to obtain stiffening steel bars 3, and welding the stiffening steel bars with bearing angle steel 2 for later use;
secondly, temporary supports are arranged below the bearing angle steel 2, and the support distance is not more than 0.8 m;
thirdly, building bottom leather building blocks between two groups of adjacent stiffening steel bars 3 on the upper surfaces of the horizontal limbs of the bearing angle steels 2, and then sequentially building the bottom leather building blocks to the designed height to complete the preparation of the small-span steel-building block composite beam.
The embodiment has the following beneficial effects:
1. the angle steel stiffening steel bars arranged on the bearing angle molten steel horizontal limbs in the small-span steel-building block combined beam or the large-span steel-building block combined beam enable the interface shear stress of the building blocks and the angle molten steel horizontal limbs to be uniform and effectively transmitted, and the building blocks and the angle steel are ensured to work cooperatively; the bearing angle steel has a bearing effect on the building block in the construction stage of the small-span steel-building block composite beam or the large-span steel-building block composite beam, and the bearing angle steel and the building block work cooperatively in the use stage of the composite beam;
2. the steel-building block composite beam for the block building outer leaf wall not only serves as a part of the outer leaf wall, but also can bear the dead weight of the steel-building block composite beam and the outer leaf wall on the composite beam, so that the independent bearing function of the outer leaf wall is realized, the stress mode that the existing outer leaf wall is supported or hung on the cantilever structure is changed, a new stress mode is provided for the design and construction of the outer leaf wall, and the stress mode is safe and reliable, reasonable in stress, high in stability and convenient to construct;
3. the steel-building block composite beam for the outer leaf wall of the block building can be built on site and can also be prefabricated in a factory;
4. the upper building block of the steel-building block combined beam for the block building external leaf wall can be a common building block or a building block with a decorative function, the lower angle steel can also adopt other forms of section steel, and the space reinforcing mesh can also adopt other materials and forms with a reinforcing function.
5. According to the embodiment, the vertical steel bars in the spatial steel bar nets are arranged in the vertical mortar joints in a staggered manner, and the vertical steel bars at the lower parts of the horizontal steel bar nets are required to be inserted into the vertical mortar joints of the lower-skin building blocks when each layer of steel bar net is in place, so that the building quality is not influenced;
6. the outer leaf wall formed by the composite beam in the embodiment has the advantages that the building vertical surface only contains the surface of the building block, but no overhanging structure or supporting mechanism surface is generated, the decorative building block or split building block is used for the outer leaf wall, and the decorative function and the continuous outer wall veneer of the outer leaf wall can comprehensively improve the decorative function of the outer wall;
7. according to the construction convenience degree, the space between the steel-block composite beam supports (namely the span of the beams) and whether the reinforcing mesh is embedded in the mortar joints of the blocks can be comprehensively considered;
8. the composite beam does not have a supporting structure exposed outdoors, so that the heat bridge area of the outer wall surface is greatly reduced, and the heat insulation effect of the sandwich wall is further improved.
The detailed implementation mode is ten: the embodiment is described with reference to fig. 2 to 5, and the preparation method of the long-span steel-block composite beam of the embodiment comprises the following steps:
firstly, cutting reinforcing steel bars to obtain stiffening steel bars 3, welding the stiffening steel bars with bearing angle steel 2, cutting the reinforcing steel bars to obtain vertical reinforcing steel bars 5, transverse reinforcing steel bars 6 and longitudinal reinforcing steel bars 7, and welding to obtain a space reinforcing steel bar mesh for later use;
secondly, temporary supports are arranged below the bearing angle steel 2, and the support distance is not more than 0.8 m;
and thirdly, building bottom skin building blocks between two groups of adjacent stiffening steel bars 3 on the upper surfaces of the horizontal limbs of the bearing angle steels 2, arranging a space steel bar mesh on the bottom skin building blocks, then building a second skin building block on the space steel bar mesh, and finally sequentially arranging the space steel bar mesh and building the space steel bar mesh until the design height is reached, thus finishing the preparation of the long-span steel-building block combined beam.
The embodiment has the following beneficial effects:
1. the angle steel stiffening steel bars arranged on the bearing angle molten steel horizontal limbs in the small-span steel-building block combined beam or the large-span steel-building block combined beam enable the interface shear stress of the building blocks and the angle molten steel horizontal limbs to be uniform and effectively transmitted, and the building blocks and the angle steel are ensured to work cooperatively; the bearing angle steel has a bearing effect on the building block in the construction stage of the small-span steel-building block composite beam or the large-span steel-building block composite beam, and the bearing angle steel and the building block work cooperatively in the use stage of the composite beam;
2. the steel-building block composite beam for the block building outer leaf wall not only serves as a part of the outer leaf wall, but also can bear the dead weight of the steel-building block composite beam and the outer leaf wall on the composite beam, so that the independent bearing function of the outer leaf wall is realized, the stress mode that the existing outer leaf wall is supported or hung on the cantilever structure is changed, a new stress mode is provided for the design and construction of the outer leaf wall, and the stress mode is safe and reliable, reasonable in stress, high in stability and convenient to construct;
3. the steel-building block composite beam for the outer leaf wall of the block building can be built on site and can also be prefabricated in a factory;
4. the upper building block of the steel-building block combined beam for the block building external leaf wall can be a common building block or a building block with a decorative function, the lower angle steel can also adopt other forms of section steel, and the space reinforcing mesh can also adopt other materials and forms with a reinforcing function.
5. According to the embodiment, the vertical steel bars in the spatial steel bar nets are arranged in the vertical mortar joints in a staggered manner, and the vertical steel bars at the lower parts of the horizontal steel bar nets are required to be inserted into the vertical mortar joints of the lower-skin building blocks when each layer of steel bar net is in place, so that the building quality is not influenced;
6. the outer leaf wall formed by the composite beam in the embodiment has the advantages that the building vertical surface only contains the surface of the building block, but no overhanging structure or supporting mechanism surface is generated, the decorative building block or split building block is used for the outer leaf wall, and the decorative function and the continuous outer wall veneer of the outer leaf wall can comprehensively improve the decorative function of the outer wall;
7. according to the construction convenience degree, the space between the steel-block composite beam supports (namely the span of the beams) and whether the reinforcing mesh is embedded in the mortar joints of the blocks can be comprehensively considered;
8. the composite beam does not have a supporting structure exposed outdoors, so that the heat bridge area of the outer wall surface is greatly reduced, and the heat insulation effect of the sandwich wall is further improved.
Claims (6)
1. The utility model provides a steel-building block combination beam for aggregate building outer leaf wall which characterized in that: the steel-building block composite beam for the outer leaf wall of the block building is divided into a small-span steel-building block composite beam and a large-span steel-building block composite beam;
the small-span steel-block combined beam consists of a block (1), a bearing angle steel (2) and a stiffening steel bar (3);
the horizontal limb of the bearing angle steel (2) is arranged below the bottommost building block in the small-span steel-building block composite beam, the vertical limb of the bearing angle steel (2) is arranged between the bottommost building block and the cantilever member in the small-span steel-building block composite beam or between the bottommost building block and the heat insulation material in the small-span steel-building block composite beam, the building block (1) is arranged on the upper surface of the horizontal limb of the bearing angle steel (2), a plurality of groups of stiffening steel bars (3) perpendicular to the upper surface of the horizontal limb are arranged on the upper surface of the horizontal limb of the bearing angle steel (2), the plurality of groups of stiffening steel bars (3) are arranged along the length direction of the bearing angle steel (2), and each group of stiffening steel bars (3) is arranged in a vertical mortar joint of the adjacent building blocks (1);
the large-span steel-block combined beam consists of blocks (1), bearing angle steel (2), stiffening steel bars (3) and a space reinforcing mesh;
the horizontal limb of the bearing angle steel (2) is arranged below the bottommost building block in the large-span steel-building block combined beam, the vertical limb of the bearing angle steel (2) is arranged between the bottommost building block and the cantilever member in the large-span steel-building block combined beam or between the bottommost building block and the heat insulation material in the large-span steel-building block combined beam, the building block (1) is arranged on the upper surface of the horizontal limb of the bearing angle steel (2), a plurality of groups of stiffening steel bars (3) perpendicular to the upper surface of the horizontal limb are arranged on the upper surface of the horizontal limb of the bearing angle steel (2), the plurality of groups of stiffening steel bars (3) are arranged along the length direction of the bearing angle steel (2), and each group of stiffening steel bars (3) is arranged in a vertical mortar joint of adjacent building blocks;
the space reinforcing mesh consists of two parallel longitudinal reinforcing steel bars (7) with equal length, a plurality of transverse reinforcing steel bars (6) between the two longitudinal reinforcing steel bars (7) and perpendicular to the longitudinal reinforcing steel bars (7) and a plurality of pairs of vertical reinforcing steel bars (5), wherein the vertical reinforcing steel bars (5) are perpendicular to the planes of the longitudinal reinforcing steel bars (7) and the transverse reinforcing steel bars (6), one end of one vertical reinforcing steel bar (5) in each pair of vertical reinforcing steel bars (5) is welded with one end of the transverse reinforcing steel bar (6), and the other end of the vertical reinforcing steel bar is a free end; one end of the other vertical steel bar (5) is welded with the middle part of the transverse steel bar (6), and the other end is a free end; the vertical reinforcing steel bars (5) welded with one ends of the transverse reinforcing steel bars (6) on the adjacent transverse reinforcing steel bars (6) are arranged in a staggered mode, and the directions of the free ends of the vertical reinforcing steel bars (5) arranged on the adjacent transverse reinforcing steel bars (6) are opposite; the longitudinal steel bars (7) are arranged in horizontal mortar joints of two vertically adjacent building blocks (1) in the large-span steel-building block composite beam, the vertical steel bars (5) are arranged in vertical mortar joints of two horizontally adjacent building blocks (1) in the large-span steel-building block composite beam, and free ends of the vertical steel bars (5) of two vertically adjacent space reinforcing steel bar nets in the large-span steel-building block composite beam are in staggered lap joint; the vertical reinforcing steel bars (5) in the vertical mortar joints in the bottom building blocks and the stiffening reinforcing steel bars (3) are arranged in a staggered manner;
the transverse steel bars (6) are welded with the longitudinal steel bars (7); the stiffening steel bars (3) are welded with the bearing angle steel (2);
the preparation method of the small-span steel-building block composite beam comprises the following steps:
firstly, cutting reinforcing steel bars to obtain stiffening steel bars (3) and welding the stiffening steel bars with bearing angle steel (2) for later use;
secondly, temporary supports are arranged below the bearing angle steel (2), and the support distance is not more than 0.8 m;
thirdly, building bottom skin building blocks between two groups of stiffening steel bars (3) adjacent to the upper surface of the horizontal limb of the bearing angle steel (2), and then sequentially building the bottom skin building blocks to the designed height to complete the preparation of the small-span steel-building block composite beam;
the preparation method of the large-span steel-building block composite beam comprises the following steps:
firstly, cutting reinforcing steel bars to obtain stiffening reinforcing steel bars (3) and welding the stiffening reinforcing steel bars with bearing angle steel (2), cutting the reinforcing steel bars to obtain vertical reinforcing steel bars (5), transverse reinforcing steel bars (6) and longitudinal reinforcing steel bars (7), and welding to obtain a space reinforcing steel bar mesh for later use;
secondly, temporary supports are arranged below the bearing angle steel (2), and the support distance is not more than 0.8 m;
thirdly, building bottom skin building blocks between two groups of stiffening steel bars (3) adjacent to the upper surface of the horizontal limb of the bearing angle steel (2), arranging a space steel bar net on the bottom skin building blocks, then building a second skin building block on the space steel bar net, and finally sequentially arranging the space steel bar net and building the space steel bar net till the designed height, namely finishing the preparation of the long-span steel-building block composite beam;
the size of the building block (1) is 390 multiplied by 190 multiplied by 90mm or 190 multiplied by 90 mm;
the height of the stiffening steel bar (3) is less than that of the building block (1).
2. The steel-block composite beam for the outer leaf wall of the block building according to claim 1, wherein: each group of stiffening steel bars (3) comprises two parallel steel bars, and the distance between adjacent groups of stiffening steel bars (3) is 400 mm.
3. The steel-block composite beam for the outer leaf wall of the block building according to claim 1, wherein: the length of the horizontal limb of the bearing angle steel is 100mm, and the length of the vertical limb of the bearing angle steel is not more than 160 mm.
4. The steel-block composite beam for the outer leaf wall of the block building according to claim 1, wherein: the strength grade of the building block (1) is not lower than MU7.5, and the strength grade of the masonry mortar is not lower than Mb 7.5.
5. The steel-block composite beam for the outer leaf wall of the block building according to claim 1, wherein: the steel bar diameter of the space reinforcing mesh is 4-6 mm.
6. The steel-block composite beam for the outer leaf wall of the block building according to claim 1, wherein: the interval of the transverse steel bars (6) is 200 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089956.7A CN106639051B (en) | 2017-02-20 | 2017-02-20 | Steel-building block combined beam for outer leaf wall of block building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710089956.7A CN106639051B (en) | 2017-02-20 | 2017-02-20 | Steel-building block combined beam for outer leaf wall of block building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106639051A CN106639051A (en) | 2017-05-10 |
| CN106639051B true CN106639051B (en) | 2022-09-09 |
Family
ID=58845142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710089956.7A Active CN106639051B (en) | 2017-02-20 | 2017-02-20 | Steel-building block combined beam for outer leaf wall of block building |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106639051B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108265882B (en) * | 2018-02-02 | 2024-04-09 | 厦门源昌城建集团有限公司 | Steel plate-stone composite beam for large-span space and construction method thereof |
| CN111395573A (en) * | 2020-03-31 | 2020-07-10 | 哈尔滨达城绿色建筑股份有限公司 | Construction method of assembled outer leaf wall of sandwich wall of block building |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2103680B (en) * | 1981-08-07 | 1985-04-11 | Press Bat Holdings Ltd | Lintel and wall comprising same |
| CN1601023A (en) * | 2003-09-23 | 2005-03-30 | 汪荣勋 | Building blocks for forming wall body, formed wall body and usage of building blocks |
| CN204238447U (en) * | 2014-01-20 | 2015-04-01 | 山东农业大学 | Middle-size and small-size building block reinforcing reinforced mesh |
| CN105780964B (en) * | 2016-03-09 | 2017-12-12 | 盐城工学院 | A kind of light block filling wall and frame structure construction technique |
| CN206681206U (en) * | 2017-02-20 | 2017-11-28 | 哈尔滨达城绿色建筑技术开发股份有限公司 | Glomeration builds siphonal lobe wall steel block combined beam |
-
2017
- 2017-02-20 CN CN201710089956.7A patent/CN106639051B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106639051A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100386487C (en) | Multi-rib structure system and its connection construction method | |
| CN103924710B (en) | Low layer assembled combined wall house Plate Welding node structure | |
| RU153413U1 (en) | HOLLOW BUILDING WITH ASSEMBLY STEEL STRUCTURE | |
| CN104594561A (en) | Prefabricated reinforced concrete column with high-performance concrete frame and construction method | |
| CN111648492A (en) | A construction method of a built-in assembled H-shaped steel skeleton Tibetan stone masonry wall | |
| CN107447901A (en) | Anti-seismic prefabricated floor and floor antidetonation splicing construction | |
| CN110578377B (en) | High-performance autoclaved aerated concrete integrated plate inner wall structure for assembled building | |
| CN108301531A (en) | Assembled built-in heat insulation layer concrete composite wall-light steel frame-floor connecting node | |
| CN203821591U (en) | Steel frame-reinforcement brickwork shear wall combined structure | |
| CN108643396A (en) | Assembled built-in heat insulation layer foamed concrete composite wall-light steel frame connecting node | |
| CN106639051B (en) | Steel-building block combined beam for outer leaf wall of block building | |
| CN211690939U (en) | Double-sided superposed sandwich heat-insulation shear wall using heat-insulation concrete | |
| CN208168032U (en) | Assembled built-in heat insulation layer concrete composite wall-light steel frame-floor connecting node | |
| CN105604245A (en) | Production method of steel-section-concrete +-shaped section column | |
| CN108643346A (en) | Assembled built-in heat insulation layer foamed concrete composite wall-light steel frame-floor connecting node | |
| CN202466964U (en) | Composite cold bridge-free external wall panel with concrete close-column gypsum | |
| CN205329970U (en) | Precast concrete wallboard and wall panel structure system of dark frame in area of structure thereof | |
| CN204357000U (en) | A kind of precast and assembled reinforced concrete spinous process of the seventh cervical vertebra frame | |
| CN102587541B (en) | Composite mortar lightweight hollow wall structure with concealed beam and line-shaped expanded metal lath | |
| CN105544867A (en) | A steel-concrete composite special-shaped column | |
| CN202627317U (en) | Steel wire mesh bending formed type reinforced concrete column (with special-shaped cross section)-wallboard damping house | |
| CN206815590U (en) | A kind of wallboard installation node based on frame system | |
| CN102127942A (en) | Energy-saving earthquake-resistant cored beam-free building floor slab | |
| CN105604246A (en) | Construction method of steel-section-concrete T-shaped section column | |
| CN211143352U (en) | Steel wire framework heat-insulating prefabricated slab and assembled composite floor slab |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |