CN203547018U

CN203547018U - Prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam

Info

Publication number: CN203547018U
Application number: CN201320652570.XU
Authority: CN
Inventors: 吴顺红; 罗泽平; 王少重; 周帆
Original assignee: Hubei Hongyi Building Decoration Engineering Co Ltd
Current assignee: Hubei Hongyi Building Decoration Engineering Co Ltd
Priority date: 2013-10-22
Filing date: 2013-10-22
Publication date: 2014-04-16
Anticipated expiration: 2023-10-22

Abstract

The utility model discloses a prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam, and belongs to the field of building components. The prestressed tooth hole-shaped web T-shaped steel reinforced concrete composite beam is composed of a prefabricated profile steel framework, a prefabricated steel reinforced concrete lower beam and a cast-in-place steel reinforced concrete upper beam. The prefabricated profile steel framework is composed of full-length tooth hole-shaped web T-shaped steel, prestressed steel bars and common constructional steel bars. A tooth hole-shaped web is provided with a lap joint rod, wherein the two sides of the lap joint rod extend outward perpendicularly. The prestressed steel bars and the common constructional steel bars are symmetric about the full-length tooth hole-shaped web, arranged around a cross stay bar and hooped through transverse stirrups to form a cage, and the cage is connected with the T-shaped steel integrally. Concrete is poured along tooth holes of the web and the transverse stirrup cage to form the prefabricated steel reinforced concrete lower beam. On the spot, the steel reinforced concrete upper beam is cast in place on the lower beam along the top surface of the T-shaped steel to form the composite beam, or the cast-in-place steel reinforced concrete upper beam and a floor cast-in-place layer are integrally formed. According to the design, the self weight of a beam body is reduced, the resultant force between the poured concrete and the profile steel is enhanced, and the bearing capacity and anti-seismic property of the T-shaped steel reinforced concrete composite beam are improved.

Description

A kind of prestressing force perforation shape web T-steel concrete combination beam

technical field

A kind of prestressing force perforation of the utility model shape web T-steel concrete combination beam, belongs to building unit field.

Background technology

Fast development along with building industry, existing conventional steel structure, wooden construction, masonry structure and reinforced concrete structure, can not meet development need, the steel reinforced concrete compound beam body structure that developed recently gets up, more traditional beam body has better performance, but, existing girder with rolled steel section en cased in concrete is the combination of single type Steel concrete substantially, along with building beam span increases, or the increasing of load, show gradually its weak point, for this reason, need exploitation can be suitable for the combining structure beam of different spans and load, acquisition is than traditional steel-concrete structure beam, bearing capacity is large, rigidity is large, the combining structure beam body that anti-seismic performance is good, to meet differing heights, the building demand of span.

Utility model content

The purpose of this utility model is to provide a kind of prestressing force perforation shape web T-steel concrete combination beam, T-steel web is perforation shape, reduce shaped steel deadweight, strengthened the engaging force of concreting and shaped steel simultaneously, improved bearing capacity and the anti-seismic performance of steel reinforced concrete compound beam.

The purpose of this utility model is achieved by the following technical solution:

A kind of prestressing force perforation of the utility model shape web T-steel concrete combination beam, by precasting reinforcing bar, prefabricated reinforcing bar concrete lower part beam and cast-in-place steel reinforced concrete top beam, formed, described precasting reinforcing bar is comprised of elongated perforation shape web T-steel, prestressed reinforcement, ordinary constitution reinforcing bar, there is respectively the affixed stiffener that is provided with through hole at described elongated perforation shape web T-steel two ends, at the castellated plates basifacial of its perforation shape web, are provided with the vertical overhanging needling to both sides, prestressed reinforcement, ordinary constitution reinforcing bar respectively symmetrical elongated perforation shape web is arranged on around needling, insert in the corresponding aperture of stiffener at its two ends respectively correspondence, and through perforation shape web perforation hoop, be connected into transverse reinforcement hoop cage through transverse reinforcement hoop, be integrally connected with elongated perforation shape web T-steel, along elongated perforation shape web perforation and transverse reinforcement hoop cage concreting, form precast concrete reinforcing bar yi word pattern lower beam, at the construction field (site), in precast concrete reinforcing bar yi word pattern lower beam, along the cast-in-situ concrete of elongated perforation shape web T-steel end face, prefabricated steel reinforced concrete top beam, be shaped to compound beam, or along elongated perforation shape web T-steel end face, implement the cast-in-place moulding of one of cast-in-situ concrete reinforcing bar top beam and precast floor slab in-situ layer.

The symmetrical elongated perforation shape web of described prestressed reinforcement is separately positioned on the upper and lower of needling, and ordinary constitution reinforcing bar is located at respectively prestressed reinforcement both sides.

Described perforation shape web T-steel two ends stiffener, is connected with respectively H shaped steel connector, and this H shaped steel connector web has connecting hole.

A kind of prestressing force perforation of the utility model shape web T-steel concrete combination beam, T-steel has perforation shape web, reduced the deadweight of girder steel, shape steel web and concrete bonding force while building have been strengthened simultaneously, not only improved to a certain extent the bearing capacity of girder steel, in profile of tooth web both sides, be provided with symmetrical needling, be not significantly increased on the basis of shaped steel weight, needling is as a part for precasting reinforcing bar, effective enhanced type steel and concrete bonding force, improve the integrated carrying ability of structure, needling top and the bottom are provided with prestressed reinforcement simultaneously, when beam bearing load, beam lower limb produces pulling force, top edge produces pressure, when prestressing force and load action, can obtain good balance, improve arrangement works performance, improve the use ability of beam, and during site operation, can implement the cast-in-place moulding of one of cast-in-situ concrete reinforcing bar top beam and precast floor slab in-situ layer, meet the civilian and public building needs of the middle low layer of general span.

Accompanying drawing explanation

Fig. 1 the utility model compound beam schematic perspective view;

Fig. 2 the utility model perforation shape web T-steel and needling schematic diagram;

Fig. 3 the utility model perforation shape web T-steel two ends and stiffener, H shaped steel connector connection diagram;

Fig. 4 the utility model prestressed reinforcement and ordinary constitution reinforcement placement schematic diagram;

The prefabricated reinforcing bar concrete lower part of Fig. 5 the utility model beam schematic diagram;

The A-A schematic cross-section of the above-mentioned Fig. 5 of the prefabricated reinforcing bar concrete lower part of Fig. 6 the utility model beam;

Fig. 7 the utility model compound beam and with the cast-in-place moulding of the one vertical section schematic diagram of precast floor slab in-situ layer.

The specific embodiment

How existing accompanying drawings the utility model is implemented:

A kind of prestressing force perforation of the utility model shape web T-steel concrete combination beam, , by precasting reinforcing bar, prefabricated reinforcing bar concrete lower part beam and cast-in-place steel reinforced concrete top beam form, by precasting reinforcing bar, the concrete lower part of precoating beam D and cast-in-situ concrete top beam B form, described precasting reinforcing bar is by elongated perforation shape web T-steel 1, prestressed reinforcement 7, ordinary constitution reinforcing bar 6 forms, the affixed stiffener 3 that is provided with through hole respectively at the two ends of described elongated perforation shape web T-steel 1, castellated plates basifacial at its perforation shape web is provided with the vertical overhanging needling 2 to both sides, the symmetrical elongated perforation shape web of prestressed reinforcement 7 is separately positioned on the upper and lower of needling, and ordinary constitution reinforcing bar respectively symmetry is located at prestressed reinforcement 6 both sides, insert respectively in the corresponding through hole of two ends stiffener 3 at the two ends of prestressed reinforcement 7 and ordinary constitution reinforcing bar 6, and through perforation shape web perforation hoop, be connected into transverse reinforcement hoop cage through transverse reinforcement hoop 8, is integrally connected with elongated perforation shape web T-steel, along perforation shape web perforation and transverse reinforcement hoop cage concreting, form precast concrete reinforcing bar yi word pattern lower beam D, at the construction field (site), on precast concrete reinforcing bar yi word pattern lower beam D, along elongated perforation shape web T-steel end face cast-in-situ concrete reinforcing bar top beam B, be shaped to compound beam, referring to Fig. 1, or take and put after precast floor slab C at the both sides platform P of moulding prefabricated concrete reinforcing bar lower beam D, along elongated perforation shape web T-steel end face, implement the cast-in-place moulding of one of in-situ layer C-1 of cast-in-situ concrete reinforcing bar top beam B and precast floor slab C referring to Fig. 7.

Described prefabricated perforation shape web T-steel two ends are connected with respectively H shape shaped steel connector 4, and these H shape shaped steel connector 4 webs have connecting hole.

Claims

1. a prestressing force perforation shape web T-steel concrete combination beam, it is characterized in that, by precasting reinforcing bar, prefabricated reinforcing bar concrete lower part beam and cast-in-place steel reinforced concrete top beam, formed, described precasting reinforcing bar is comprised of elongated perforation shape web T-steel, prestressed reinforcement, ordinary constitution reinforcing bar, there is respectively the affixed stiffener that is provided with through hole at described elongated perforation shape web T-steel two ends, at the castellated plates basifacial of its perforation shape web, are provided with the vertical overhanging needling to both sides, prestressed reinforcement, ordinary constitution reinforcing bar respectively symmetrical elongated perforation shape web is arranged on around needling, insert in the corresponding aperture of stiffener at its two ends respectively correspondence, and through perforation shape web perforation hoop, be connected into transverse reinforcement hoop cage through transverse reinforcement hoop, be integrally connected with elongated perforation shape web T-steel, along elongated perforation shape web perforation and transverse reinforcement hoop cage concreting, form precast concrete reinforcing bar yi word pattern lower beam, in precast concrete reinforcing bar yi word pattern lower beam, along elongated perforation shape web T-steel end face cast-in-situ concrete reinforcing bar top beam, be shaped to compound beam, or along elongated perforation shape web T-steel end face, implement the cast-in-place moulding of one of cast-in-situ concrete reinforcing bar top beam and precast floor slab in-situ layer.

2. a kind of prestressing force perforation shape web T-steel concrete combination beam according to claim 1, it is characterized in that, the symmetrical elongated perforation shape web of prestressed reinforcement is separately positioned on the upper and lower of needling, and ordinary constitution reinforcing bar is located at respectively prestressed reinforcement both sides.

3. a kind of prestressing force perforation shape web T-steel concrete combination beam according to claim 1, is characterized in that, perforation shape web T-steel two ends stiffener, is connected with respectively H shaped steel connector, and this H shaped steel connector web has connecting hole.