CN115559465A - Double-ripple web-concrete combined beam - Google Patents

Abstract

The invention relates to a double-corrugated web-concrete combined beam for buildings, which comprises a metal beam, wherein the length of the metal beam extends along the front-back direction, the metal beam comprises an upper flange, a lower flange, a left web and a right web, the left web and the right web are connected between the upper flange and the lower flange, the left web and the right web are both corrugated webs which extend along the front-back direction, each corrugated web is provided with a plurality of corrugated bulges which are arranged at intervals along the front-back direction, corrugated grooves are formed between every two adjacent corrugated bulges, a filling cavity is formed by enclosing the upper flange, the lower flange, the left web and the right web, and concrete bodies which are fixedly connected with the upper flange, the lower flange, the left web and the right web into an integral structure are poured in the filling cavity. The invention provides the double-corrugated web-concrete composite beam which can improve the bearing capacity and the practical performance of the steel-concrete composite beam for construction, and has the advantages of high bearing capacity, high rigidity, low carbon saving and the like, and the economic and technical indexes are obvious.

Description

A double corrugated web-concrete composite beam

technical field

The invention relates to the field of prefabricated building construction, in particular to a double corrugated web-concrete composite beam.

Background technique

In prefabricated buildings, composite structures have good application prospects. Steel-concrete composite beams have the characteristics of high bearing capacity, high rigidity, and convenient construction, and have attracted much attention in recent years.

Traditional house beams include steel beams whose length extends along the front-to-back direction. The steel beams include upper flanges, lower flanges, and left and right webs fixed between the upper and lower flanges. The left web The plate and the right web are flat plate structures perpendicular to the upper and lower flanges, and the left and right webs, upper and lower flanges enclose a rectangular cavity. Not filled with concrete material.

The existing problems of this kind of beams are: firstly, the vertical bearing capacity, stable bearing capacity and torsional bearing capacity of the rectangular cross-section steel beams are not particularly good; In case of local instability and deformation, in order to improve the shear resistance of the web, the thickness of the web must be increased, which will lead to waste of materials and increase the self-weight of the beam. The web of the steel structure will soon undergo plastic deformation, resulting in local damage, and eventually cause the overall collapse of the steel structure to fail.

Contents of the invention

The object of the present invention is to provide a double corrugated web-concrete composite beam that can improve the force performance and bearing capacity of the existing beam web.

In order to solve the above technical problems, the technical scheme of a double wave web-concrete composite beam in the present invention is as follows:

A double corrugated web-concrete composite beam, including a metal beam whose length extends along the front-to-back direction, the metal beam includes an upper flange, a lower flange, and a left web and a right web connected between the upper flange and the lower flange. The side webs, the left web and the right web are all corrugated webs extending along the front-to-rear direction, and the corrugated web has a plurality of corrugated protrusions arranged at intervals along the front-to-rear direction, and the gap between adjacent corrugated protrusions It is a corrugated groove, and a filling cavity is formed between the upper flange, the lower flange, the left web and the right web, and the filling cavity is poured with upper flange, lower flange, left web, right The web is consolidated into a concrete body of the monolithic structure.

Further, the cross section of the filling cavity is a trapezoidal structure with a small top and a large bottom, or a rectangular structure with the same width at the top and bottom.

Further, the left web extends obliquely from top to bottom toward the left, and the right web extends obliquely from top to bottom toward the right, or the right web is perpendicular to the upper flange and the lower flange.

Further, the lower end of the upper flange and/or the upper end of the lower flange are fixed with pegs that are cast into an integral structure with the concrete.

Further, the left end of the lower flange is the left side protruding flange section of the lower flange protruding leftward from the left web, and the right end of the lower flange is the right outer part of the lower flange protruding rightward from the right web. Convex flange segment.

Further, it also includes a pouring tool for pouring the concrete body into the filling cavity, a plurality of grout holes arranged at intervals along the front and rear directions are opened on the upper flange, and the pouring tool includes a pyramidal bell mouth, a pyramidal bell mouth The inner cavity of the inner cavity constitutes a grouting opening with a large upper part and a smaller one at the lower part. The pouring tool also includes a guide section arranged on the lower side of the pyramid bell mouth. The guide section slant plate between the guide section right side plate, the guide section left side plate, the guide section right side plate and the guide section slant plate form an L-shaped guide section channel, the upper channel opening of the guide section channel and the grouting opening connected, the lower channel port of the channel of the guide section is connected with one end port of the filling cavity, and the grouting port is higher than the filling cavity.

Further, the double wave web-concrete composite beam also includes two left and right additional reinforcement groups, and each additional reinforcement group includes at least two additional reinforcements whose lengths are arranged at intervals along the front and rear directions.

Further, the additional reinforcing bars of the additional reinforcing bar group on the left are welded and fixed on the left side of the left corrugated protrusion of the left web, and the additional reinforcing bars of the additional reinforcing bar group on the right are welded and fixed on the right side of the right web The right side of the corrugated protrusion; or, the additional reinforcement of the left additional reinforcement group is welded and fixed on the right side of the right corrugated protrusion of the left web, and the additional reinforcement of the right additional reinforcement group is welded and fixed On the left side of the left corrugated protrusion of the right web, each additional steel bar is consolidated with concrete to form an integral structure.

Further, the additional reinforcing bars of the additional reinforcing bar group on the left are connected to each left corrugated protrusion of the left web along the front-rear direction; On each right corrugated protrusion.

Further, each additional reinforcing bar group includes two additional reinforcing bars arranged at intervals up and down, and the height of the two additional reinforcing bars in each additional reinforcing bar group is divided into thirds corresponding to the height of the web.

The beneficial effects of the present invention are as follows: in the present invention, the left web and the right web are corrugated webs, and the corrugated webs can meet the requirements of high out-of-plane rigidity and stable load bearing under the condition of small thickness. At the same time, the corrugated web plate is used, which greatly increases the contact area and connection strength between the web plate and the concrete body, and can significantly reduce the slip between the concrete body and the metal beam, making the two better synergistic. The synergy between the metal beam and the filling material inside the metal beam, that is, the concrete body, provides a composite beam with high bearing capacity and good torsion resistance. Of course, the setting of the internal filling material can also prevent the inside of the metal beam from rusting.

Description of drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present disclosure are shown by way of illustration and not limitation, and the same or corresponding reference numerals indicate the same or corresponding parts, wherein:

Fig. 1 is the structural representation of embodiment 1 of a kind of double corrugated web-concrete composite beam in the present invention;

Fig. 2 is a side view of Fig. 1;

Figure 3 is a top view of Figure 1

Fig. 4 is a perspective view of Fig. 1;

Fig. 5 is a schematic diagram of the cooperation between the additional reinforcement and the corresponding web in Fig. 1;

Fig. 6 is the corrugation figure of left side web in embodiment 1;

Fig. 7 is the use state diagram of pouring tool;

Fig. 8 is a structural representation of the pouring tool in Fig. 7;

Fig. 9 is a side view of Fig. 8;

Figure 10 is a top view of Figure 8;

Figure 11 is a perspective view of Figure 8;

Fig. 12 is a diagram of the use state of the upper support in Embodiment 1;

Fig. 13 is a diagram of the use state of the under-supported support in Embodiment 1;

Fig. 14 is a schematic structural view of Embodiment 2 of a double corrugated web-concrete composite beam in the present invention;

Figure 15 is a perspective view of Figure 14;

Fig. 16 is a schematic diagram of cooperation between the additional reinforcement and the left web in Embodiment 3 of a double wave web-concrete composite beam in the present invention;

Fig. 17 is a schematic structural view of Embodiment 4 of a double wave web-concrete composite beam in the present invention;

Fig. 18 is a schematic diagram of cooperation between the additional reinforcement and the left web in Fig. 17;

Fig. 19 is a usage state diagram of Embodiment 4;

Fig. 20 is a waveform diagram of the left web in Embodiment 5 of a double wave web-concrete composite beam in the present invention;

Fig. 21 is a waveform diagram of the left web in Embodiment 6 of a double wave web-concrete composite beam in the present invention;

Fig. 22 is a waveform diagram of the left web in Embodiment 7 of a double wave web-concrete composite beam in the present invention;

Fig. 23 is a waveform diagram of the left web in Embodiment 8 of a double wave web-concrete composite beam in the present invention;

Explanation of reference signs: 1. Metal beam; 1-1, upper flange; 1-2, left web; 1-3, lower flange; 1-4, concrete body; 1-5, grout hole; 1-6, additional reinforcement; 1-7, web on the right side; 1-8, left side convex flange section of the lower flange; 1-9, right side convex flange section of the lower flange; 1-10, The right corrugated protrusion of the left web; 1-11, the left corrugated protrusion of the left web; 1-12, the connection section of the steel bar; 1-13, the perforation of the steel bar; 2, the floor; 3, the shear connection 4. Filling wall; 5. Floor surface; 6. Protective material; 7. Pouring tools; 7-1. Left side panel of guide section; 7-3. Right side panel of guide section; slab; 7-5, guide section channel; 7-6, grouting opening; 8, stud; 9, pre-embedded steel bar for floor slab; 10, post-cast concrete body.

detailed description

In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. Rather, these embodiments are provided for the purpose of making the disclosure of the present invention more thorough and comprehensive.

It should be noted that, unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of the present invention. Terms used in the description of the present invention are only for the purpose of describing specific embodiments, and are not used to limit the present invention.

An embodiment of a double wave web-concrete composite beam in the present invention is shown in Figures 1 to 13:

It includes a metal beam 1 whose length extends along the front-to-back direction. The metal beam includes an upper flange 1-1, a lower flange 1-3, and a left web 1-2 and a right side connected between the upper flange and the lower flange. Webs 1-7, the upper and lower flanges are all flat plate structures, the left and right webs are corrugated webs extending along the front and rear directions, and the corrugated webs have multiple The corrugated protrusions are arranged at intervals, and there are corrugated grooves between adjacent corrugated protrusions. The corrugated pattern of the corrugated web is shown in Figure 6. Due to the sequential arrangement of corrugated protrusions and corrugated grooves, for the left web, the bottom of the corrugated groove constitutes the left corrugated protrusion of the left web. 1-11, the corrugated protrusions of the left web facing the right web constitute the right corrugated protrusions 1-10 of the left web. For the right web, the groove bottom of the corrugated groove forms the right corrugated protrusion of the right web, and the corrugated protrusion of the right web facing the left side forms the left corrugated protrusion of the right web. Raised side corrugations.

A filling cavity is enclosed between the upper flange, lower flange, left web and right web, and the filling cavity is poured with the upper flange, lower flange, left web and right web to form Concrete body of monolithic structure 1-4. In this embodiment, the concrete body is made of self-compacting, micro-expansion, and good fluidity concrete. For example, the concrete body is made of lightweight concrete, high-strength concrete, high-ductility concrete, ultra-high performance concrete or recycled concrete. The concrete It can be absorbed into the body and has good fire resistance.

In this embodiment, the left web extends obliquely from top to bottom toward the left, and the right web extends obliquely from top to bottom toward the right, and the cross-section of the filling cavity is a trapezoidal structure with a small top and a large bottom.

The lower end of the upper flange and the upper end of the lower flange are fixed with studs 8 poured into an integral structure with the concrete body. The setting of the studs can further enhance the synergy between the metal beam and the concrete body.

The left end of the lower flange is the flange section 1-8 on the left side of the lower flange protruding from the left web, and the right end of the lower flange is the right outer flange segment protruding from the right web on the right. Flange segments 1-9.

The double corrugated web-concrete composite beam also includes a pouring tool 7 for pouring the concrete body in the filling cavity. The upper flange is provided with a plurality of grout holes 1-5 arranged at intervals along the front and rear directions. The pouring tool Including the pyramidal bell mouth, the inner cavity of the pyramidal bell mouth forms a grouting mouth 7-6 with a large upper part and a smaller one at the lower part. The pouring tool also includes a guide section arranged on the lower side of the pyramidal bell mouth. The guide section right side plate 7-3 and the guide section slant plate 7-4 arranged between the guide section left side plate and the guide section right side plate, the guide section left side plate, the guide section right side plate and the guide section slant plate surround An L-shaped guide section channel is formed, the upper side channel opening of the guide section channel is connected with the grouting opening, the lower side channel opening of the guiding section channel is connected with one end port of the filling cavity, and the grouting opening is higher than the filling cavity.

The corrugated web-concrete composite beam also includes two left and right additional reinforcement groups, and each additional reinforcement group includes two additional reinforcement bars 1-6 whose lengths are arranged at intervals along the front and rear directions.

The additional reinforcement of the left additional reinforcement group is welded and fixed on the right side of the right corrugated protrusion of the left web, and the additional reinforcement of the right additional reinforced group is welded and fixed to the left corrugated protrusion of the right web on the left side of the . The height of the two additional steel bars of each additional steel bar group is trisected corresponding to the height of the web, and the height of the web refers to the distance between the upper flange and the lower flange.

When in use, the double corrugated web-concrete composite beam in the present invention can be supported with the floor slab as an upward support, as shown in Figure 12, the floor 2 is directly fixed on the upper end of the upper flange, and the double corrugated web - The left and right sides of the concrete composite beam are provided with protective materials 6 made of concrete, and the protective material is also formed by pouring concrete. The bottom of the double corrugated web-concrete composite beam is fixed on the filling wall 4, so that the double corrugated Web-concrete composite beams are protected on all sides to avoid rusting of metal beams.

The double corrugated web-concrete composite beam in the present invention can also realize the under bearing support with the floor, the under bearing support is shown in Figure 13, the end of the floor 2 on the left is supported on the left side of the lower flange and the outwardly convex flange section On the upper side, the end of the floor slab 2 on the right is supported on the right side of the lower flange, and an infill wall 4 is arranged on the upper end of the upper flange, and an infill wall 4 is arranged on the lower end of the lower flange, and the infill wall 4 and The pair of metal beams on the floor 2 also form a four-sided protective structure to avoid rusting of the metal beams.

In this embodiment, the thickness range of the left web and the right web is 1-6mm, the angle α between the left web, the right web and the lower flange is 20°~89°, the left web , The corrugation height hr range of the right web is 10~100mm. The width of the left side convex flange section of the lower flange and the right side convex flange section of the lower flange shall not be less than 50 mm; when the cross section of the left web and the right web is a trapezoidal corrugation curve or an arc angle trapezoidal corrugation curve, The ratio of the expanded length of the wavelength to the wavelength of the web corrugation ranges from 1.1 to 1.5.

The manufacturing process of the double corrugated web-concrete composite beam in this embodiment is as follows:

(a) According to the force requirements of the composite beam, design and calculate the width of the upper and lower flanges, the thickness of the upper and lower flanges, the height of the left web, the right web, the height of the double corrugated web (hr) and the inclination angle (α);

(b) According to the design parameters, prepare materials and carry out accurate lofting, numbering and marking;

(c) cutting steel materials such as flanges, webs, additional reinforcement and studs;

(d) Correction and shaping of the raw material deformation, cutting deformation, etc. that have occurred;

(e) Complete the rust removal treatment and antirust paint coating on all steel surfaces;

(f) machining of steel edges and ends;

(g) making several grout holes on the upper flange;

(h) The upper flange, double corrugated web, lower flange, additional reinforcement and studs are assembled into a whole by welding connection;

(i) Pour the internal filling material with the help of pouring tools until the pouring stops when the grout hole overflows;

(j) sealing the slurry outlet;

(k) Remove the pouring tools and remove excess filling material when the internal filling material is hardened;

(l) Transport the double corrugated web-concrete composite beam to the construction site, install and fix it for subsequent beam-slab connection, and spray fire-resistant paint.

The double corrugated web-concrete composite beam in the present invention is composed of an upper flange, a double corrugated web, a lower flange, internal filling materials, additional steel bars and pegs. The double corrugated web adopts corrugated steel plates with different cross-section forms, and forms a trapezoidal cross-section with the upper and lower flanges, which has good torsional performance; The corrugated web with small thickness has high out-of-plane stiffness and stable bearing capacity, and at the same time, together with the studs, it increases the bonding with the internal filling material. Additional reinforcement increases the axial stiffness of the composite beam along the corrugation direction. The internal filling material prevents local buckling of the double corrugated web, and the steel constrains the internal filling material. The invention has high out-of-plane rigidity, stable bearing capacity and torsion resistance, saves steel consumption, flexible floor layout, reduces anti-corrosion and fire prevention costs, saves formwork process and formwork, and has remarkable economic benefits.

Compared with the prior art, the main technical characteristics of the present invention are:

1. The present invention adopts double corrugated web made of steel, and the double corrugated web refers to the left web and the right web, which can effectively improve the out-of-plane stable bearing capacity of the web and the overall stability of the composite beam, reducing The thickness of the web plate saves steel. Double corrugated web-concrete composite beams use corrugated webs instead of flat webs, and the corrugated webs themselves form shear resistance. The corrugated webs have high out-of-plane rigidity and stable bearing capacity when the thickness is small, and can be thinner The thicker the thickness, the higher the shear bearing capacity can be obtained, the steel consumption can be saved, and the economic performance is remarkable.

2. The present invention adopts double corrugated webs made of steel, which increases the bonding between the corrugated webs and the internal filling material. Double corrugated web-concrete composite beams use corrugated steel webs to greatly increase the contact area between the steel plate and the internal filling material, which can significantly reduce the slip between the steel beam and the internal filling material, so that the two can work together better; at the same time , studs can be arranged on the upper and lower flanges to further enhance the cooperative work of steel and internal filling materials.

3. The present invention welds additional steel bars on the inner side of the double corrugated web, which is beneficial to improve the stability and stress performance of the components along the corrugated direction during the manufacturing and transportation process and the composite beam in the structure. The axial stiffness of the double corrugated web-concrete composite beam along the corrugation direction is improved by arranging additional steel bars on the inner side, the outer side of the double corrugated web or at the half-wave position, forming a corrugated steel-concrete composite structure with higher rigidity. It is beneficial to improve the stability and stress performance of the component during the manufacturing and transportation process and the composite beam along the corrugated direction in the structure.

4. The double corrugated web-concrete composite beam of the present invention has higher bearing capacity and rigidity. The internal filling material of the double corrugated web composite beam and the external pouring material can effectively prevent the local buckling of the double corrugated web and improve the ultimate bending bearing capacity of the composite beam, while the double corrugated web and the upper and lower flanges can effectively prevent the local buckling of the double corrugated web. The filling material also has a restraining effect, which can increase the stiffness of the section, avoid the overall instability and local buckling damage of the composite beam, and improve the local stability and overall stability of the component.

5. According to the function of the building, the double corrugated web-concrete composite beam can flexibly adopt the upper or lower floor support mode, which improves the flexibility of the floor layout. When the floor-supporting type is adopted, the concrete floor in the composite beam structure bears pressure, and the steel beam bears tension. The material properties of the two materials are fully utilized to greatly increase the bearing capacity; the addition of concrete floors increases the stiffness of the beams. When the under-supported floor is used, the lower flange of the double corrugated web-concrete composite beam is protruded outward, and the floor is placed on the lower flange of the composite beam, which improves the overall stability of the composite beam and effectively prevents the composite beam from being under load. Destruction due to bending and torsional instability; the composite beam forms a surrounding enclosure to the floor in the bay, which increases the in-plane rigidity of the floor, and the structural integrity is better; the upper surface of the floor is flush with the upper surface of the upper flange, reducing the beam height At the same time, the height of the building is increased. When the net height of the floors is equal, the height of the building can be reduced, and the overall flatness of the structure is increased, and the economic benefits are remarkable.

6. The present invention can greatly reduce the exposed area of steel when the double corrugated web-concrete composite beam is used in the building structure, and reduce the cost of anti-corrosion. Double corrugated web-concrete composite beams have filling materials inside, and external floors, filling walls, protective materials or post-cast materials wrap double corrugated webs and upper and lower flanges, which greatly reduces the exposed area of steel leakage and effectively reduces fire protection. And the time and expense of anti-corrosion.

7. The filling material inside the double corrugated web-concrete composite beam of the present invention can absorb heat and has good fire resistance. In the event of a fire, the steel beams are exposed to fire, and the internal filling materials can better absorb the heat transferred from the surface of the steel beams, delay the temperature rise of the components, and improve the fire resistance of the entire structure.

8. The present invention saves the process of setting up formwork and templates during construction, and reduces the cost. Flanges and double webs can be directly used as formwork for pouring internal filling materials and beam-slab connection nodes, saving formwork and formwork costs, facilitating construction, shortening construction period, and reducing project cost.

Embodiment 2 of a double corrugated web-concrete composite beam is shown in Figures 14 to 15: Embodiment 2 is different from Embodiment 1 in that one of the webs is perpendicular to the upper and lower flanges, and in the present invention In other embodiments, the left web and the right web may both be perpendicular to the upper flange and the lower flange.

An embodiment 3 of a double corrugated web-concrete composite beam is shown in Figure 16: the difference between embodiment 3 and embodiment 1 is that the additional steel bars 1-6 are welded and fixed on the outer side of the corresponding web, specifically, the left side The additional reinforcement of the additional reinforcement group is welded and fixed on the left side of the left corrugated protrusion 1-11 of the left web, and the additional reinforcement of the additional reinforced group on the right is welded and fixed on the right corrugated protrusion of the right web. up on the right side. The additional reinforcing bars between the corresponding two corrugated protrusions constitute the exposed reinforcing bar connecting section 1-12, which is convenient for connecting with other reinforcing bars. The connection between the reinforcing bar connecting section and other reinforcing bars can be referred to embodiment 4.

Embodiment 4 of a double corrugated web-concrete composite beam is shown in Figures 17-18: the difference between Embodiment 4 and Embodiment 3 is that the additional reinforcement of the additional reinforcement group on the left is connected to the left side along the front and rear direction The corrugated protrusions 1-11 on the left side of the web plate; the additional reinforcement bars of the additional reinforcement bar group on the right side are connected to the corrugated protrusions on the right side of the web plate along the front and rear directions. Specifically, each left side corrugated protrusion of the left web is provided with steel bar perforations 1-13 extending along the front and rear directions, and each right side corrugated protrusion of the right web is provided with steel bar perforations extending along the front and rear direction. Rebars are respectively threaded and connected in the corresponding steel bar piercing holes, and the connection between the additional steel bars and the corresponding webs can be realized only by piercing, or at the same time, spot welding between the opening edge of the steel bar piercing and the additional steel bars This solution can greatly reduce the welding labor for connecting the additional steel bars and the web, reduce labor intensity and welding pollution, and effectively avoid the welding deformation of the web.

The additional reinforcing bars between correspondingly connected two corrugated protrusions form a bare reinforcing bar connecting section, which is convenient for connecting with other reinforcing bars. Specifically, as shown in Figure 19, when the under-supported support is used, the end of the floor 2 on the left is supported on the left side of the lower flange, and the end of the floor on the right is supported on the right side of the lower flange. On the side protruding flange section, during the pouring process of the floor slab, embedded steel bars 9 are fixed. The left end of the steel bar protrudes from the right floor toward the left, and the right end of the embedded steel bar on the left floor extends between the corresponding two adjacent left corrugated protrusions on the corresponding left web, and the right end of the embedded steel bar on the left side is in contact with the left side. Connecting sections 1-12 of the corresponding additional reinforcing bars are in contact, and the embedded reinforcing bars are bound to the corresponding connecting sections of reinforcing bars with tie wires. Similarly, the embedded reinforcing bars in the floor slab on the right are also connected to the corresponding reinforcing bars of the additional reinforcing bar group on the right. Section binding, and then post-cast concrete body is poured between the floor slab and the corresponding web, the post-cast concrete body fixes the web, steel bar connection section, floor slab pre-embedded steel bar and floor pouring into an overall structure, through the setting of the exposed steel bar connection section, It facilitates the connection of additional steel bars and pre-embedded steel bars in the floor slab, and facilitates the formation of an integral structure between the floor slab and the double corrugated web-concrete composite beam.

Embodiment 5 of a double corrugated web-concrete composite beam is shown in Figure 20: Embodiment 5 is different from Embodiment 1 in that in this embodiment, the cross-sectional waveforms of the left web and the right web are Rectangular waveform.

Embodiment 6 of a double corrugated web-concrete composite beam is shown in Figure 21: Embodiment 6 is different from Embodiment 1 in that in this embodiment, the cross-sectional waveforms of the left web and the right web are Rectangle with rounded corners.

An embodiment 7 of a double corrugated web-concrete composite beam is shown in Figure 22: the difference between embodiment 7 and embodiment 1 is that in this embodiment, the cross-sectional waveforms of the left web and the right web are Trapezoidal waveform, the notch size of the corrugated groove is smaller than the cavity size.

An embodiment 8 of a double corrugated web-concrete composite beam is shown in Figure 23: the difference between embodiment 8 and embodiment 1 is that in this embodiment, the cross-sectional waveforms of the left web and the right web are Sine waveform.

In the above descriptions of this specification, unless otherwise clearly specified and limited, terms such as "fixed", "installed", "connected" or "connected" should be interpreted in a broad sense. For example, as far as the term "connection" is concerned, it may be a fixed connection or a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary , or it can be the internal communication of two elements or the interaction relationship between two elements. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

According to the above description of this specification, those skilled in the art can also understand the terms used as follows, such as "upper", "lower", "front", "rear", "left", "right", "length", "width" ", "Thickness", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential", "Center", " Terms indicating orientation or positional relationship, such as "longitudinal", "transverse", "clockwise" or "counterclockwise", are based on the orientation or positional relationship shown in the drawings of this specification, which are only for the convenience of explaining the solution of the present invention and simplify the description, rather than express or imply that the device or element involved must have the specific orientation, be constructed and operate in a specific orientation, so the above orientation or positional relationship terms cannot be understood or interpreted as Limitations on the Protocols of the Invention.

In addition, terms such as "first" or "second" used in this specification to refer to numbers or ordinal numbers are used for descriptive purposes only, and should not be interpreted as express or implied relative importance or implied indications The number of technical characteristics. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this specification, "plurality" means at least two, such as two, three or more, etc., unless otherwise specifically defined.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. The utility model provides a dual ripple web-concrete combination beam, includes the metal roof beam that length extended along the fore-and-aft direction, and the metal roof beam includes top flange, bottom flange and connects left side web and right side web between top flange, bottom flange, its characterized in that: left side web, right side web are along the fore-and-aft direction extension and arrange the corrugated web, and the corrugated web has a plurality of corrugated protrusions along fore-and-aft direction interval arrangement, is the ripple recess between the adjacent corrugated protrusion, encloses into between top flange, bottom flange, left side web and the right side web and fills the chamber, pours into the intracavity and becomes overall structure's concrete body with top flange, bottom flange, left side web, right side web consolidation.

2. The dual corrugated web-concrete composite beam of claim 1, wherein: the cross section of the filling cavity is in a trapezoidal structure with a small upper part and a big lower part or in a rectangular structure with an equal upper part and a equal width.

3. The dual corrugated web-concrete composite beam of claim 1, wherein: the left web plate extends obliquely from top to bottom towards the left, the right web plate extends obliquely from top to bottom towards the right, or the right web plate is perpendicular to the upper flange and the lower flange.

4. The dual corrugated web-concrete composite beam of claim 1, wherein: and the lower end of the upper flange and/or the upper end of the lower flange are/is fixedly provided with a stud which is cast into an integral structure with the concrete.

5. The dual corrugated web-concrete composite beam of claim 1, wherein: the left end of the lower flange is a lower flange left convex flange section which protrudes to the left from the left side web plate, and the right end of the lower flange is a lower flange right convex flange section which protrudes to the right from the right side web plate.

6. The dual corrugated web-concrete composite beam of claim 1, wherein: still including be used for to fill the intracavity and pour concrete body's the instrument of pouring, set up a plurality of grout outlet along front and back direction interval arrangement on the top flange, the instrument of pouring includes pyramid horn mouth, pyramid horn mouth's inner chamber constitutes big-end-up's grout mouth, the instrument of pouring is still including setting up in the guide section of pyramid horn mouth downside, the guide section includes guide section left side board, guide section right side board and set up in guide section left side board, the guide section swash plate between the guide section right side board, guide section left side board, guide section right side board and guide section swash plate enclose into the guide section passageway of an L shape, the upside passway of guide section passageway links to each other with the grout mouth, the downside passway of guide section passageway links to each other with the one end port of filling the chamber, the grout mouth is higher than and fills the chamber.

7. The double-wave web-concrete composite beam as claimed in any one of claims 1 to 6, characterized in that: the double-wave web plate-concrete combined beam further comprises a left additional steel bar group and a right additional steel bar group, wherein each additional steel bar group comprises at least two additional steel bars with the lengths arranged at intervals along the front-back direction.

8. The dual wave web-concrete composite beam of claim 7, wherein: the additional steel bars of the left additional steel bar group are welded and fixed on the left side surface of the left corrugated bulge of the left web plate, and the additional steel bars of the right additional steel bar group are welded and fixed on the right side surface of the right corrugated bulge of the right web plate; or the additional steel bars of the left additional steel bar group are welded and fixed on the right side surface of the right corrugated bulge of the left web plate, the additional steel bars of the right additional steel bar group are welded and fixed on the left side surface of the left corrugated bulge of the right web plate, and each additional steel bar and the concrete are consolidated into an integral structure.

9. The dual wave web-concrete composite beam of claim 7, wherein: the additional steel bars of the additional steel bar group on the left side penetrate through the left side corrugated bulges of the web plate on the left side along the front-back direction; the additional reinforcing steel bars of the right additional reinforcing steel bar group penetrate through the right corrugated bulges of the right web plate along the front-back direction.

10. The dual wave web-concrete composite beam of claim 7, wherein: each additional steel bar group comprises two additional steel bars which are arranged at intervals up and down, and the height of the two additional steel bars of each additional steel bar group is trisected by the height of the corresponding web plate.

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