CN108204039A - A kind of assembled architecture truss structure - Google Patents

Abstract

The invention belongs to prefabricated construction technical fields in civil engineering, and in particular to a kind of assembled architecture truss structure.Including spaced a plurality of columns, the column is mutually parallel and perpendicular to ground；The upper/lower terminal of the column is connected with floor, beam is equipped between the column and is supported in the floor lower end, support unit is additionally provided between the column and below the beam, the support unit includes a plurality of supporting members, and the supporting member is connect by connecting plate with the column.In order to make up the shortcomings of the prior art, the present invention provides a kind of high capacity, rigidity is larger, industrialization degree is high, energy consumption and anti-earthquake ductility are good, has the assembled architecture truss structure that multiple tracks is provided fortification against earthquakes and rationally failure mode, space are repaired greatly, easily.Each component of structural system carries out whole assembling at the scene after being suitble to industrialized production, part assembled, and construction quality is good, and speed of application is fast.

Description

A prefabricated building truss structure

technical field

The invention belongs to the technical field of prefabricated assembled structures in civil engineering, and in particular relates to an assembled building truss structure.

Background technique

Under the action of large vertical load and horizontal load, the column is often designed with a large section, which affects the building space. In order to save space, if the column section is designed as a special-shaped column, that is, the column adopts T, L, cross-shaped and other cross-sections The thickness of the column limbs is the same as that of the building wall, and its bearing capacity, stiffness, stability and ductility are difficult to meet the requirements.

The prefabricated structure is conducive to energy saving and environmental protection. If the prefabricated reinforced concrete shear wall or steel tube concrete shear wall is directly used, the structure will have a heavy weight, which requires high hoisting machinery, and is not conducive to the structure's earthquake resistance and on-site assembly. In many traditional structures, under the action of earthquakes, etc., the structure failed to perform according to the expected reasonable failure mode, and some failed to form multiple anti-seismic defense lines, resulting in structural collapse and serious casualties, and the building structure was damaged. The subsequent restoration is very difficult.

Contents of the invention

In order to make up for the shortcomings of the above existing technologies, the present invention provides a high bearing capacity, high rigidity, high degree of industrialization, good energy consumption and seismic ductility, multi-channel seismic fortification and reasonable failure mode, large building space, and easy repair. Prefabricated building truss structure.

The present invention is achieved like this:

A prefabricated building truss structure, including a plurality of columns arranged at intervals, the columns are parallel to each other and perpendicular to the ground; the upper and lower ends of the columns are connected with floor slabs, and beams are arranged between the columns and supported on At the lower end of the floor, between the uprights and below the beams, a support unit is provided, and the support unit includes a plurality of support members, and the support members are connected to the uprights through connecting plates.

further:

The supporting member includes one or both of diagonal braces and horizontal braces. More preferably, the supporting unit consists of a plurality of diagonal braces and horizontal braces alternately forming a continuous triangular support structure.

The column is a steel pipe concrete column, including steel pipes, and concrete is poured into the steel pipes. More preferably, the steel tube concrete column is provided with stiffening ribs, and the stiffening ribs are welded to the inner wall of the steel tube by using angle steel or steel plates, and are arranged oppositely at intervals along the height of the column. Wherein the concrete includes ordinary concrete, high-strength concrete, high-performance concrete, steel fiber concrete, recycled aggregate concrete or lightweight aggregate concrete.

The columns adopt special-shaped cross-section columns at the turning point of the structural plane. The special-shaped cross-section columns include L-shaped, T-shaped and cross-shaped cross-sections, and a plurality of rectangular cross-section columns are arranged between the special-shaped cross-section columns.

The connecting plate and the supporting member are fastened by bolts.

The supporting member adopts steel pipe, steel plate, angle steel or channel steel.

The beams are steel beams, prefabricated reinforced concrete beams or composite beams, and the floors are prefabricated floors or composite floors.

The present invention has the following advantages: a prefabricated building truss structure of the present invention broadens the application range of special-shaped section columns and rectangular section columns, has flexible structural forms, saves building space, and at the same time, steel and concrete work together to have a good impact resistance. power performance. The setting of multiple supporting members between adjacent columns in the floor greatly improves the structural bearing capacity, lateral stiffness, ductility and energy dissipation capacity, reduces the column section size, is economical and reliable, and has multiple anti-seismic fortifications. Under the action of the support element, the failure occurs first, and the structural system has a reasonable failure mode. After the disaster, the damaged support unit can be disassembled and replaced, which is convenient and quick. Each component of the structural system is suitable for industrial production, and the overall assembly is carried out on site after partial assembly. The construction quality is good and the construction speed is fast.

Description of drawings

The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the structural elevation view of the present invention.

Figure 2 is a schematic plan view of the column and the support unit.

Figure 3 is a cross-sectional view of the column and the connecting plate, where (a), (b), (c), and (d) respectively represent L-shaped, T-shaped, cross-shaped, and rectangular cross-section columns without stiffeners, and (e), (f), (g), and (h) represent L-shaped, T-shaped, cross-shaped, and rectangular cross-section columns with stiffeners, respectively.

Detailed ways

Please refer to Figs. 1 to 3, a prefabricated building truss structure of the present invention includes a steel pipe concrete column 1, the steel pipe concrete column 1 includes a steel pipe 11, and concrete 12 filled into the steel pipe 11, the concrete 12 Ordinary concrete, high-strength concrete, high-performance concrete, steel fiber concrete, recycled aggregate concrete or lightweight aggregate concrete can be used. The upper and lower ends of the concrete-filled steel pipe column 1 are connected with a floor 3, and a beam 2 is arranged between the concrete-filled steel pipe columns 1 and supported on the lower end of the floor 3, and the concrete-filled steel pipe column 1 is located between the A supporting unit 4 is provided below the beam 2, and the supporting unit 4 includes a plurality of supporting members, and the supporting members are connected to the concrete filled steel pipe column 1 through a connecting plate 5. The connecting plate 5 is welded on the side of the section thickness of the column limb of the concrete filled steel pipe column 1 by a steel plate, and is arranged intermittently along the column height.

The concrete-filled steel tube column 1 adopts special-shaped cross-section columns at the turning point of the structural plane, including L-shaped, T-shaped and cross-shaped cross-sections, and a plurality of rectangular cross-section columns are arranged between the special-shaped cross-section columns, as shown in Fig. 2 and Fig. 3 . The CFST column 1 has no stiffeners and stiffeners, as shown in Figure 3. The stiffeners 13 are welded on the inner side of the steel pipe 11 by using angle steel or steel plates, and are arranged in opposite directions continuously along the height of the column.

The end of the supporting member is provided with the same bolt holes as those on the connecting plate 5 , and the connecting plate 5 is fastened with bolts 6 . The support unit 4 can be alternately provided with diagonal braces 41 and cross braces 42, or only diagonal braces 41 can be provided, and steel pipes, steel plates, angle steels or channel steels can be used.

The beam 2 is a steel beam, a prefabricated reinforced concrete beam or a laminated beam, and the floor 3 is a prefabricated floor or a laminated floor.

The steel pipes 11, stiffeners 13, support members, and connecting plates 5 mentioned above can be made of carbon steel, stainless steel or fire-resistant steel.

During construction, several concrete-filled steel tube columns 1 and support units 4 can be assembled first and then hoisted according to hoisting machinery requirements, saving on-site construction time and ensuring construction quality.

An assembled concrete-filled steel tube column truss structure system of the present invention broadens the application scope of special-shaped steel tube concrete columns and rectangular steel tube concrete columns, and has a flexible structure and saves building space. At the same time, steel and concrete work together to have good force bearing performance. The setting of multiple supporting members between adjacent concrete-filled steel tube columns 1 in the floor greatly improves the structural bearing capacity, lateral stiffness, ductility and energy dissipation capacity, reduces the column section size, is economical and reliable, and has multiple seismic fortifications, Under the action of earthquake, etc., the support unit 4 is damaged first, and the structural system has a reasonable failure mode. After the disaster, the damaged supporting member can be disassembled and replaced, which is convenient and quick. Each component of the structural system is suitable for industrial production, and the overall assembly is carried out on site after partial assembly. The construction quality is good and the construction speed is fast.

Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments we have described are only illustrative, rather than used to limit the scope of the present invention. Equivalent modifications and changes made by skilled personnel in accordance with the spirit of the present invention shall fall within the protection scope of the claims of the present invention.

Claims (10)

1. A prefabricated building truss structure, characterized in that: comprise a plurality of columns arranged at intervals, the columns are parallel to each other and perpendicular to the ground; the upper and lower ends of the columns are connected with floor slabs, and the lower ends of the floor slabs are parallel to each other. A beam and a support unit are sequentially arranged between adjacent columns, and the support unit includes a plurality of support members, and the support members are connected to the columns through connecting plates. 2. The prefabricated building truss structure according to claim 1, characterized in that: the supporting members include one or both of diagonal braces and cross braces. 3. The prefabricated building truss structure according to claim 2, characterized in that: the support unit is composed of a plurality of diagonal braces and cross braces alternately forming a continuous triangular support structure. 4. The prefabricated building truss structure according to claim 1, characterized in that: the column is a steel tube concrete column, including steel tubes, and concrete is poured into the steel tubes. 5. The prefabricated building truss structure according to claim 4, characterized in that: the concrete-filled steel tube column is provided with a stiffening rib, and the stiffening rib is welded to the inner wall of the steel tube by angle steel or steel plate, and along the height of the column Interval facing setting. 6. A prefabricated concrete-filled steel tube column truss structure system according to claim 4, wherein the concrete comprises ordinary concrete, high-strength concrete, high-performance concrete, steel fiber concrete, recycled aggregate concrete or lightweight aggregate concrete. 7. The prefabricated building truss structure according to claim 1, characterized in that: the column adopts a special-shaped cross-section column at the turning point of the structural plane, and the special-shaped cross-section column includes L-shaped, T-shaped and cross-shaped cross-sections. A plurality of rectangular section columns are arranged between the section columns. 8. The prefabricated building truss structure according to claim 1, characterized in that: the connecting plate and the supporting member are fastened by bolts. 9. The prefabricated building truss structure according to claim 1, characterized in that: the supporting member is steel pipe, steel plate, angle steel or channel steel. 10. The prefabricated building truss structure according to claim 1, wherein the beams are steel beams, prefabricated reinforced concrete beams or composite beams, and the floors are prefabricated floors or composite floors.