CN106760187B - A kind of novel high-performance reinforced beam and preparation method thereof - Google Patents

A kind of novel high-performance reinforced beam and preparation method thereof Download PDF

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Publication number
CN106760187B
CN106760187B CN201710019463.6A CN201710019463A CN106760187B CN 106760187 B CN106760187 B CN 106760187B CN 201710019463 A CN201710019463 A CN 201710019463A CN 106760187 B CN106760187 B CN 106760187B
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China
Prior art keywords
steel plate
folding shape
concrete
muscle
steel
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Expired - Fee Related
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CN201710019463.6A
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CN106760187A (en
Inventor
吴清贵
曹新明
韦雪
莫大霖
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Guizhou University
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Guizhou University
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)

Abstract

The invention discloses a kind of novel high-performance reinforced beams, the intrinsic steel reinforcement cage of beams of concrete is cast in pre- including beams of concrete ontology, both ends are symmetrical arranged curved plate in steel reinforcement cage and the curved plate lower end is indulged muscle with lower part respectively and is fixedly connected, middle part setting span centre intersects folding shape and can be rotated steel plate and the span centre and intersect folding shape and can be rotated steel plate lower end in steel reinforcement cage is fixedly connected with the vertical muscle in lower part, the present invention effectively improve conventional steel bar concrete beam span is small and shear-carrying capacity and the problems such as poor ductility, improve the anti-bending bearing capacity and its ductility of normal reinforced concrete beam.And the present invention can make full use of mechanical property, the recoverability of every material in beam strong, and the sectional dimension of the type beam is small compared with normal reinforced concrete beam size, can be with effectively save space, so as to effectively save building cost.

Description

A kind of novel high-performance reinforced beam and preparation method thereof
Technical field
The present invention relates to construction engineering technical field, especially a kind of novel high-performance reinforced beam and its production side Method.
Background technique
General normal reinforced concrete beam has the shortcomings that ductility is poor, span is small, every material cannot make full use of.These Disadvantage seriously hinders beams of concrete in the development of building engineering field.Now, domestic experts and scholars are in order to solve regular reinforcement These disadvantages of concrete component propose a variety of steel reinforced concrete reality abdomens and laced beam, but these beams all have some defects. Such as: sliding between concrete and fashioned iron, because of welding stress and deformation caused by welding, cut brittle break, ductility difference etc. Problem.
Summary of the invention
The technical problems to be solved by the present invention are: in order to better solve, normal reinforced concrete beam ductility is poor, span The problems such as small, every material cannot make full use of, the present invention makes full use of material mechanical performance used, provides a kind of construction Simply, the good a kind of novel high-performance reinforced beam and preparation method thereof of mechanical property, with overcome it is in the prior art not Foot.
The present invention is implemented as follows:
A kind of novel high-performance reinforced beam, including beams of concrete ontology and to be cast in beams of concrete intrinsic in advance Steel reinforcement cage, both ends are symmetrical arranged curved plate in steel reinforcement cage and the curved plate lower end is indulged muscle with lower part respectively and is fixedly connected, Middle part setting span centre intersection folding shape can be rotated steel plate in steel reinforcement cage and the span centre intersects folding shape and can be rotated steel plate lower end and lower part Vertical muscle is fixedly connected.
In a kind of novel high-performance reinforced beam above-mentioned, the span centre, which intersects folding shape, can be rotated steel plate by two pieces of foldings Shape steel plate is constituted, wherein folding shape steel plate upper end is located at beams of concrete body upper part, which indulges muscle with lower part and fix Connection, one of folding shape steel plate middle part setting steel plate, which stitches, enables other one piece of folding shape steel plate to be inserted into steel plate seam so that two pieces of foldings Shape steel plate, which forms span centre intersection folding shape, can be rotated steel plate.
A kind of production method of novel high-performance reinforced beam, specifically includes the following steps:
Step 1: intersecting folding shape according to design requirement processing both ends curved plate, the span centre of concrete engineering can be rotated steel plate, Muscle and curved plate bottom, span centre are indulged in lower part again intersect folding shape and can be rotated steel plate bottom and is connected in advance by welding or be mechanically connected It is connected together, but the curved plate of two sides and folding shape steel plate only cannot indulge muscle with same root lower part and connect;
Step 2: the structure for first having formed step 1 is placed in beam bottom portion two when pressing design requirement banding steel cage Between the longitudinal reinforcement of side, then the binding of upper longitudinal bar 3, lower part vertical muscle 4, stirrup 5 is carried out, eventually forms a kind of novel high-performance steel Concrete Beam Reinforced steel reinforcement cage;
Step 3: the somewhere position that the muscle cage bound is placed in structural system is carried out pouring for concrete.
In a kind of production method of novel high-performance reinforced beam above-mentioned, the concrete is high-performance coagulation Soil, normal concrete, wherein beam body span centre is high-performance mixed mud, other positions are normal concrete.
Specific design principle is: when reinforced beam generates bending under external force, girder span middle and upper part concrete Longitudinal reinforcement tension in lower part while compression, tension drive span centre intersection folding shape to can be rotated steel plate and produce relative rotation, the span centre The folding shape steel plate that intersecting folding shape can be rotated in steel plate also rotates, and the upper end for rolling over shape steel plate generates horizontal movement component to beam-ends To reduce compression suffered by concrete in girder span, at the same both ends curved plate tension indulge muscle (i.e. lower part indulge muscle by Draw) pulling force under generate the movement into girder span, in ipsilateral curved plate and roll over the concrete of shape steel plate in this way and be in and be pressurized The bending resistance and shear-carrying capacity and ductility of beams of concrete can be improved in state, such working mechanism
By adopting the above-described technical solution, compared with prior art, the present invention solves conventional steel bar concrete beam Shear-carrying capacity and ductility are poor, improve common anti-bending bearing capacity and its ductility.And the present invention can make full use of every in beam Mechanical property, the recoverability of material are strong, and the sectional dimension of the type beam is small compared with normal reinforced concrete beam size, can be effective Space is saved, so as to effectively save building cost.
Detailed description of the invention
Attached drawing 1 is the principle of the present invention schematic diagram;
Attached drawing 2 is reinforcement cage structure schematic diagram in the present invention;
Attached drawing 3 is the structural schematic diagram one for rolling over shape steel plate, the vertical muscle in lower part, end curved plate connecting elements;
Attached drawing 4 is the structural schematic diagram two for rolling over shape steel plate, the vertical muscle in lower part, end curved plate connecting elements.
Specific embodiment
The embodiment of the present invention: a kind of novel high-performance reinforced beam, as shown in attached drawing 1-4, including beams of concrete Ontology and it is cast in the intrinsic steel reinforcement cage of beams of concrete in advance, both ends curved plate 1 arranged symmetrically and the arc in steel reinforcement cage Steel plate lower end is indulged muscle 4 with lower part respectively and is fixedly connected, and there are two types of forms for the plate of the both ends curved plate 1: with ribbing and not with ribbing Steel plate, middle part setting span centre intersection folding shape can be rotated steel plate 2 in steel reinforcement cage and the span centre intersects folding shape and can be rotated 2 lower end of steel plate It indulges muscle 4 with lower part to be fixedly connected, the curved plate 1, span centre intersection folding shape can be rotated steel plate 2 and indulge being fixedly connected for muscle 4 with lower part Mode is welding or mechanical connection.
Wherein span centre intersection folding shape can be rotated steel plate 2 and be made of two blocks of folding shape steel plates, wherein folding shape steel plate upper end 6 is located at Beams of concrete body upper part, the folding shape steel plate lower end are indulged muscle 4 with lower part and are fixedly connected, and steel is arranged in the middle part of one of folding shape steel plate Plate stitch 7 enable other one piece of folding shape steel plate be inserted into steel plate seam 7 make two blocks of folding shape steel plates form span centres to intersect folding shapes rotatable Steel plate 2, the upper end that span centre intersection folding shape can be rotated folding shape steel plate upper end 6 in steel plate 2 meet related to the vertical range of beam bottom Design requirement, intersection folding shape can be rotated 2 lower end steel plate of steel plate and horizontal plane oblique is angled, and the angular range is by specifically setting Meter requires to determine.
A kind of production method of novel high-performance reinforced beam, specifically includes the following steps:
Step 1: intersecting folding shape according to design requirement processing both ends curved plate, the span centre of concrete engineering can be rotated steel plate, Muscle and curved plate bottom, span centre are indulged in lower part again intersect folding shape and can be rotated steel plate bottom and is connected in advance by welding or be mechanically connected It is connected together, but the curved plate of two sides and folding shape steel plate only cannot indulge muscle with same root lower part and connect, and be detailed in attached drawing 3 and 4, it is attached It is left side curved plate, the vertical muscle in one of folding shape steel plate connection same root lower part in Fig. 3, and in attached drawing 4 is right side arc-shaped steel Plate, another block of folding shape steel plate connect the lower part different from attached drawing 3 and indulge muscle;
Step 2: the structure for first having formed step 1 is placed in beam bottom portion two when pressing design requirement banding steel cage Between the longitudinal reinforcement of side, then the binding of upper longitudinal bar, lower part vertical muscle, stirrup is carried out, eventually forms a kind of novel high-performance reinforcing bar Concrete beam reinforcing cage;
Step 3: the somewhere position that the muscle cage bound is placed in structural system is carried out pouring for concrete, this is mixed Solidifying soil is high performance concrete, normal concrete, and wherein beam body span centre is high-performance mixed mud, other positions are common coagulation Soil.
The description of above scheme is the invention being intended to facilitate those of ordinary skill in the art to understand and use, and is familiar with The personnel of art technology obviously easily can make various modifications to embodiment, and therefore, the present invention is not limited to above-mentioned realities Scheme, those skilled in the art according to the method for the present invention, all should by improvement and modification made without departing from the scope of the present invention Within protection scope of the present invention.

Claims (4)

1. a kind of novel high-performance reinforced beam, including beams of concrete ontology are cast in the intrinsic steel of beams of concrete with pre- Muscle cage, it is characterised in that: both ends are symmetrical arranged curved plate (1) in steel reinforcement cage and the curved plate lower end is vertical with lower part respectively Muscle (4) is fixedly connected, and middle part setting span centre intersection folding shape, which can be rotated steel plate (2), in steel reinforcement cage and the span centre intersects folding shape to turn Muscle (4) are indulged with lower part and are fixedly connected in dynamic steel plate (2) lower end.
2. a kind of novel high-performance reinforced beam according to claim 1, it is characterised in that: the span centre intersects folding Shape can be rotated steel plate (2) and be made of two blocks of folding shape steel plates, wherein folding shape steel plate upper end (6) is located at beams of concrete body upper part, it should Folding shape steel plate lower end is indulged muscle (4) with lower part and is fixedly connected, and setting steel plate seam (7) makes other one in the middle part of one of folding shape steel plate Block folding shape steel plate can be inserted into steel plate seam (7) and two pieces of folding shape steel plates formation span centres intersection folding shapes is made to can be rotated steel plate (2).
3. a kind of production method of novel high-performance reinforced beam, it is characterised in that: specifically includes the following steps:
Step 1: intersecting folding shape according to design requirement processing both ends curved plate, the span centre of concrete engineering can be rotated steel plate, then Lower part indulges muscle and curved plate bottom, span centre and intersects folding shape and can be rotated steel plate bottom and pass through to weld or be mechanically connected to be connected in advance Together, but the curved plate of two sides and folding shape steel plate only cannot indulge muscle with same root lower part and connect;
Step 2: the structure for first having formed step 1 is placed in beam two sides of the bottom and indulges when pressing design requirement banding steel cage To between reinforcing bar, then carry out upper longitudinal bar (3), the binding of muscle, stirrup (5) is indulged in lower part, eventually form a kind of novel high-performance steel Concrete Beam Reinforced steel reinforcement cage;
Step 3: the somewhere position that the muscle cage bound is placed in structural system is carried out pouring for concrete.
4. a kind of production method of novel high-performance reinforced beam according to claim 3, it is characterised in that: described Concrete is high performance concrete, normal concrete, and wherein beam body span centre is high-performance mixed mud, other positions are common coagulation Soil.
CN201710019463.6A 2017-01-11 2017-01-11 A kind of novel high-performance reinforced beam and preparation method thereof Expired - Fee Related CN106760187B (en)

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CN112227597A (en) * 2020-09-30 2021-01-15 贵州路桥集团有限公司 H-shaped steel concrete composite beam
CN114562070B (en) * 2022-03-19 2023-08-08 池州建投鼎晟预制构件有限公司 Bearing capacity resistant structure of prestressed concrete beam

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JP3830767B2 (en) * 2001-03-12 2006-10-11 トピー工業株式会社 Continuous girder for bridge
CN2727292Y (en) * 2004-03-11 2005-09-21 陈星� Built-in skeleton-frame steel string concrete beam
CN101117835A (en) * 2007-09-05 2008-02-06 哈尔滨工业大学 Reinforcement built-in anti-shear steel plate concrete combination beam
CN206428890U (en) * 2017-01-11 2017-08-22 贵州大学 A kind of novel high-performance reinforced beam

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Granted publication date: 20190412