CN203669204U - Trussed steel reinforced concrete coupling beam - Google Patents

Trussed steel reinforced concrete coupling beam Download PDF

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Publication number
CN203669204U
CN203669204U CN201320778145.5U CN201320778145U CN203669204U CN 203669204 U CN203669204 U CN 203669204U CN 201320778145 U CN201320778145 U CN 201320778145U CN 203669204 U CN203669204 U CN 203669204U
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CN
China
Prior art keywords
coupling
web
chord
reinforced concrete
truss
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Expired - Fee Related
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CN201320778145.5U
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Chinese (zh)
Inventor
胡强
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Guangxi University of Science and Technology
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Guangxi University of Science and Technology
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Priority to CN201320778145.5U priority Critical patent/CN203669204U/en
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Publication of CN203669204U publication Critical patent/CN203669204U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a trussed steel reinforced concrete coupling beam. The trussed steel reinforced concrete coupling beam comprises a concrete connecting beam, wherein a trussed steel skeleton is arranged in the concrete connecting beam; the trussed steel skeleton extends into a shear wall of which two ends are connected with the concrete coupling beam; the trussed steel skeleton is formed by a chord member and a web member; the chord member is connected with the web member; the chord member has a T-shaped section; the web member is an inclined web member or vertical web member; the inclined web member forms a cross shape; the inclination angle of the inclined web member is 30-60 degrees; the crossed inclined web members are repeatedly compressed and deformed, so as to dissipate earthquake energy to a certain extent. A truss rod member and concrete have strong binding power, and a shear key does not need to be arranged. The coupling beam is large in rigidity, good in ductility, and strong in energy-dissipating capacity; the advantages of two materials, namely the concrete and rolled steel are fully utilized and played. The trussed steel reinforced concrete coupling beam has the characteristics of reasonable structure, steel conservation, construction simplification and convenience in construction.

Description

Truss-like steel reinforced concrete coupling beam
Technical field
The utility model relates to a kind of coupling beam, particularly a kind of truss-like steel reinforced concrete coupling beam.
Background technology
Coupling beam is the important component of coupled shear walls.At horizontal loading, as under geological process, wall limb produces flexural deformation, makes coupling beam produce deformation and internal force, and the distortion of coupling beam simultaneously is also played certain effect of contraction to wall limb, improves the stress of wall limb.The coupling beam of good working ductility, under geological process, coupling beam enters plasticity prior to wall limb, beam-ends forms plastic hinge, not only can absorb large energy, delay the surrender of wall limb, coupling beam makes shear wall keep enough Rigidity and strengths to the effect of contraction of wall limb to a certain extent.The reasons such as coupling beam is because span-depth radio is little, and the wall limb rigidity that is attached thereto is large, under horizontal force action, its internal force is often very large, even if take to reduce the various measures of coupling beam internal force when design, still difficult the design of coupling beam is met the requirements.Therefore, finding the quality of the enough coupling beam form relations of good, the rigidity of anti-seismic performance and bearing capacity to the anti-seismic performance of shear wall, is the key technology in coupled shear walls structure.
Domestic and international many scholars have carried out a large amount of research to coupling beam, have proposed respectively the coupling beam forms such as reinforced concrete coupling beams, improved reinforced concrete coupling beams, steel work coupling beam, steel reinforced concrete coupling beam.Reinforced concrete coupling beams simple structure, easy construction, cheap, but its deformability is not good enough, and cross section rotational deformation is limited in one's ability, often causes diagonal tension failure or shearing slip to destroy, and energy dissipation capacity is declined.The shortcomings such as there is larger lifting the aspects such as its ductility of improved reinforced concrete coupling beams, energy-dissipating property, but also have more deficiency, as complicated in structure construction, deformation performance is not enough.Steel coupling beam has obvious advantage at aspects such as intensity, ductility, constructions compared with concrete coupling beam, and conveniently replaced maintenance after large shake, but have that steel using amount is large, the problem such as coupling beam insufficient rigidity and fire retardant anticorrosion.Steel reinforced concrete coupling beam has good ductility, energy-dissipating property, but also have that steel using amount is large, the shortcoming such as adhesive property deficiency between Steel concrete.
Summary of the invention
The technical problems to be solved in the utility model is: provide a kind of anti-seismic performance good, there is enough rigidity and bearing capacity, be easy to design a kind of truss-like steel reinforced concrete coupling beam.
The technical scheme solving the problems of the technologies described above is: a kind of truss-like steel reinforced concrete coupling beam, comprise concrete coupling beam, in described concrete coupling beam, be provided with truss-like reinforcing bar, this truss-like reinforcing bar stretches in the shear wall that two ends are connected with concrete coupling beam, described truss-like reinforcing bar is made up of chord member and web member, described chord member is connected with web member, and described chord member is T section, and described web member is diagonal web member and perpendicular web member.
Further technical scheme of the present utility model is: described diagonal web member and perpendicular web member are angle steel, and described chord member and web member are weldingly connected.
The angle of inclination of described diagonal web member is 30 °~60 °.
Described chord member is upper chord and lower chord, described perpendicular web member is montant, described diagonal web member is coupling beam middle part brace and beam anchorage brace, described montant, coupling beam middle part brace and beam anchorage brace are welded on respectively between upper chord and lower chord, and described coupling beam middle part brace and beam anchorage brace are cross-shaped respectively.
The span-depth radio of described truss-like steel reinforced concrete coupling beam is less than or equal at 1 o'clock, and its middle part internode number is 1 internode; In the time that the span-depth radio of truss-like steel reinforced concrete coupling beam is greater than 1, its middle part internode number is 2 internodes.
Owing to adopting technique scheme, the truss-like steel reinforced concrete coupling beam of the utility model, compared with existing coupling beam, has following beneficial effect:
1. the utility model is a kind of novel coupling beam form proposing based on above-mentioned technical background, to avoiding above-mentioned coupling beam form deficiency, makes full use of steel and concrete bi-material advantage separately, obtains the New Type of Coupling Beam form of structure of excellent earthquake resistance.In concrete coupling beam in the utility model, be provided with truss-like reinforcing bar, give full play to the advantage of steel and concrete bi-material, the anti-seismic performances such as the rigidity, ductility, energy-dissipating property of concrete coupling beam are increased substantially, the coupling beam insufficient rigidity of avoiding the easy flexing of steel work coupling beam plate and may existing, avoid the poor shortcoming of steel reinforced concrete coupling beam adhesive property, thereby avoided existing coupling beam deficiency separately; And truss member and concrete have larger adhesion stress, do not need to arrange shear connector.
2. the utility model adopts steel truss type reinforcing bar, make simple, easy construction, be easy to design, steel are saved to a certain extent, simultaneously, the chord member of truss-like reinforcing bar replaces or part replaces longitudinal reinforcement, diagonal web member to replace intersecting in concrete coupling beam the effect of diagonal bar and part stirrup, has simplified the arrangement of reinforcement of concrete coupling beam complexity.In addition, do the used time at larger earthquake, the diagonal web member that intersects passes through tension and compression plastic strain dissipation seismic energy repeatedly, has further improved the energy-dissipating property of coupling beam.
3. truss-like steel reinforced concrete coupling beam of the present utility model is to adopt steel truss to improve the ductility of concrete coupling beam, the New Type of Coupling Beam form of hysteretic energy performance as reinforcing bar.Meanwhile, concrete has stressed and bilayer effect topping concurrently, improves the local stability of reinforcing bar resistance to overturning, steel plate, is more conducive to the energy-dissipating property of coupling beam.Truss-like reinforcing bar of the present utility model is chord member by T-steel, and angle steel is web member, is connected by weld seam, can meet the seismic design demand of coupling beam by the different arrangement form of web member.In the utility model, diagonal web member is cross-shaped, intersects the diagonal web member tension and compression deformation seismic energy that can dissipate to a certain extent repeatedly.
Below, in conjunction with Figure of description and specific embodiment, the technical characterictic of the truss-like steel reinforced concrete coupling beam to the utility model is further described.
Brief description of the drawings
Fig. 1: be the structural representation of the truss-like steel reinforced concrete coupling beam of the utility model.
Fig. 2: be the I-I sectional view in Fig. 1.
In above-mentioned accompanying drawing, each label declaration is as follows:
1-upper chord, 2-lower chord, 3-montant, 4-coupling beam middle part brace, 5-beam anchorage brace, 6-shear wall.
Detailed description of the invention
A kind of truss-like steel reinforced concrete coupling beam, comprise concrete coupling beam, in described concrete coupling beam, be provided with truss-like reinforcing bar, this truss-like reinforcing bar stretches in the shear wall 6 that two ends are connected with concrete coupling beam, and described truss-like reinforcing bar is made up of chord member and web member, described chord member and web member welding, described chord member is T section, described web member is diagonal web member and perpendicular web member, and described diagonal web member and perpendicular web member adopt angle steel, and the angle of inclination of described diagonal web member is 30 °~60 °.
Described chord member is upper chord 1 and lower chord 2, described perpendicular web member is montant 3, described diagonal web member is coupling beam middle part brace 4 and beam anchorage brace 5, described montant 3, coupling beam middle part brace 4 and beam anchorage brace 5 are welded on respectively between upper chord 1 and lower chord 2, described montant 3 is vertically welded between upper chord 1 and lower chord 2, described coupling beam middle part brace 4 is cross-shaped and is welded between upper chord 1 and lower chord 2, described beam anchorage brace 5 or being cross-shaped is welded between upper chord 1 and lower chord 2, or beam anchorage brace 5 one end are welded on upper chord 1 or lower chord 2, the other end is welded on montant 3, beam anchorage brace 5 and montant 3 are K shape.
Described truss-like steel reinforced concrete coupling beam middle part internode number can arrange different numerical value according to the span-depth radio of truss-like steel reinforced concrete coupling beam, and for example, the span-depth radio of truss-like steel reinforced concrete coupling beam is less than or equal at 1 o'clock, and its middle part internode number is 1 internode; In the time that the span-depth radio of truss-like steel reinforced concrete coupling beam is greater than 1, its middle part internode number is 2 internodes; Described truss-like steel reinforced concrete coupling beam middle part internode number can be selected as the case may be, and makes diagonal web member angle of inclination unlikely excessive or too small; Figure 1 shows that there is the steel bone joist frame of 2 internodes at truss-like steel reinforced concrete coupling beam middle part.
One conversion as the present embodiment: the angle of inclination of described diagonal web member can suitably be adjusted according to actual conditions.

Claims (5)

1. a truss-like steel reinforced concrete coupling beam, comprise concrete coupling beam, it is characterized in that: in described concrete coupling beam, be provided with truss-like reinforcing bar, this truss-like reinforcing bar stretches in the shear wall (6) that two ends are connected with concrete coupling beam, described truss-like reinforcing bar is made up of chord member and web member, described chord member is connected with web member, and described chord member is T section, and described web member is diagonal web member and perpendicular web member.
2. truss-like steel reinforced concrete coupling beam according to claim 1, is characterized in that: described diagonal web member and perpendicular web member are angle steel, described chord member and web member are weldingly connected.
3. truss-like steel reinforced concrete coupling beam according to claim 1, is characterized in that: the angle of inclination of described diagonal web member is 30 °~60 °.
4. according to the truss-like steel reinforced concrete coupling beam described in the arbitrary claim of claim 1-3, it is characterized in that: described chord member is upper chord (1) and lower chord (2), described perpendicular web member is montant (3), described diagonal web member is coupling beam middle part brace (4) and beam anchorage brace (5), described montant (3), coupling beam middle part brace (4) and beam anchorage brace (5) are welded on respectively between upper chord (1) and lower chord (2), and described coupling beam middle part brace (4) and beam anchorage brace (5) are cross-shaped respectively.
5. truss-like steel reinforced concrete coupling beam according to claim 4, is characterized in that: the span-depth radio of described truss-like steel reinforced concrete coupling beam is less than or equal at 1 o'clock, and its middle part internode number is 1 internode; In the time that the span-depth radio of truss-like steel reinforced concrete coupling beam is greater than 1, its middle part internode number is 2 internodes.
CN201320778145.5U 2013-12-02 2013-12-02 Trussed steel reinforced concrete coupling beam Expired - Fee Related CN203669204U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320778145.5U CN203669204U (en) 2013-12-02 2013-12-02 Trussed steel reinforced concrete coupling beam

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Application Number Priority Date Filing Date Title
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Publications (1)

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CN203669204U true CN203669204U (en) 2014-06-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103615069A (en) * 2013-12-02 2014-03-05 广西科技大学 Trussed steel rib concrete coupling beam
CN111559001A (en) * 2019-02-13 2020-08-21 河南天久装配式建筑有限公司 Manufacturing method of light sandwich concrete angle steel truss girder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103615069A (en) * 2013-12-02 2014-03-05 广西科技大学 Trussed steel rib concrete coupling beam
CN111559001A (en) * 2019-02-13 2020-08-21 河南天久装配式建筑有限公司 Manufacturing method of light sandwich concrete angle steel truss girder

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140625

Termination date: 20141202

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