CN105821903A - Synthesized pipe rack with frame composite structure - Google Patents

Abstract

The invention discloses a comprehensive pipe gallery with a frame type combined structure, which comprises unit pipe joints formed by combining unit plates located on the upper and lower sides and side unit plates located on both sides, and the unit pipe joints are assembled in the axial direction to form a comprehensive pipe Corridor; wherein, the unit plate is composed of a plate, a second hollow pipe located at its two ends and a first hollow pipe located at its other two ends, and the side unit plate is composed of a plate and a first hollow pipe located at its two ends Composed of two pipes, the second pipe is the axial splicing end of the unit pipe joint; in the assembly to form the comprehensive pipe gallery, the first pipe constitutes the longitudinal beam of the comprehensive pipe gallery, and the adjacent second pipes are connected to each other to form the skeleton of the comprehensive pipe gallery structure. The longitudinal beams and skeleton structure of the pipe gallery bear the main load, forming a bridge steel web structure to enhance the shear resistance of the pipe gallery, which has been cleverly used; on the basis of the double reinforced structure, the bearing capacity is greatly improved, and the same filling height , the structural wall panel is thinner and saves material.

Description

Frame composite structure comprehensive pipe gallery

technical field

The invention discloses a comprehensive pipe gallery, in particular to a frame-type composite structure comprehensive pipe gallery.

Background technique

At present, most of the urban underground comprehensive pipe gallery is made of reinforced concrete. ～5 meters a joint, the sealing of the joint is a problem, the construction technology requires high requirements, the construction period is long, it is easy to crack and leak during use, the maintenance cost is high, and the entire project uses a large amount of cement, which is not conducive to environmental protection. Among them, the rectangular structure pipes, the walls on both sides, not only bear the vertical load on the upper part, but also bear the lateral load of the side soil layer, and the top plate directly bears the dynamic load and static load, but because only the ordinary Advanced reinforced concrete technology, in order to resist bending moment and bending, enhance its bearing capacity, and prevent instability, the walls need to be set very thick, and the cost is extremely high. For circular reinforced concrete pipes, there is a wedge-shaped corner at the bottom of the pipe, which is difficult to backfill, and its slabs are all large-curvature radian slabs, and its headroom utilization rate is particularly low.

The applicant has been committed to the research and application of steel structures and steel-concrete combined structures. The patent No. 201510960789.X "Steel Urban Underground Comprehensive Pipe Gallery" has been applied for. Its material is made of pure steel, and its bearing capacity is limited, so it cannot be applied to large-diameter sections and high fill. Patent No. 2015106007884 "Prefabricated steel-concrete composite steel pipe and its manufacturing method" has been applied for, patent No. 201510598743.8 "Prefabricated assembled steel-concrete combined pipe and its manufacturing method" and patent No. 201510600759.8 "Steel with spiral reinforcement ring - Concrete Composite Structure Pipeline and Its Manufacturing Method" invention patent, the pipe section in the above-mentioned patents is in the form of a circular section, when this type of pipe section is applied to the urban underground comprehensive pipe gallery, there are the following shortcomings ①, inside the pipe gallery The bottom is curved, not flat, which is inconvenient for maintenance personnel and maintenance equipment to pass through. It is necessary to build a special platform at the bottom of the pipe gallery. ②. The walls on both sides of the pipe gallery are also curved, which is not conducive to the arrangement of pipe racks and pipelines. ③. For integral circular cross-section pipelines, there are difficulties in transportation, and the diameter of the pipe is greater than 3.5 meters or exceeds the limit. ④. There are also transportation disadvantages for the segmented circular arc section. Because the plates are arc-shaped structures, when stacked and transported, the higher the stack, the more the plates are stressed during the transportation process, which is easy to cause the plates Unpredictable arc deformation. In severe cases, it cannot be assembled on site when it is transported to the site, and rework is required. ⑤. Compared with the flat plate, the circular arc plate is difficult to process and control such as arc degree and arc length, and the processing cost is high. ⑥. Rectangular pipe section can adapt to different storey height requirements by simply changing the aspect ratio. ⑦. Compared with circular cross-section pipes, the construction difficulty of rectangular cross-section pipes is less. ⑧. The flexibility of curved unit plates is greater than that of straight unit plates. ⑨. The above-mentioned invention patents all apply the joint force effect of pipe and soil. This principle needs to be realized by the joint deformation of the pipe and the surrounding soil. However, for the urban underground comprehensive pipe gallery, when the deformation of the pipe is too large, it may cause Deformation or damage of racks and pipelines. ⑩. According to the standard requirements of the Ministry of Housing and Urban-Rural Development "Technical Specifications for Urban Comprehensive Pipe Gallery Engineering" in 2015, the circular pipe gallery has a lower space utilization rate than the box-shaped pipe gallery, and the circular pipe gallery only uses the circular pipe gallery to connect Rectangular headroom. For this reason, the height of the circular pipe gallery is higher than that of the box-shaped pipe gallery, and it needs to be buried deeper, which increases the excavation depth and engineering volume of the foundation.

Therefore, urgently need to solve above-mentioned technical problem.

Contents of the invention

Purpose of the invention: The purpose of the invention is to provide a frame-type combined structure comprehensive pipe gallery with strong bearing capacity, strong shear resistance, good seismic performance and good anti-settlement performance.

Technical solution: The present invention discloses a comprehensive pipe gallery with a frame-type composite structure, which includes a unit pipe joint formed by combining unit plates located on the upper and lower sides and side unit plates located on both sides, and the unit pipe joints are assembled in the axial direction A comprehensive pipe gallery is formed; wherein, the unit plate is composed of a plate, a second hollow pipe located at its two ends and a first hollow pipe located at its other two ends, and the side unit plate is composed of a plate and a hollow pipe located at its two ends Hollow second pipe material, the second pipe material is the axial splicing end of the unit pipe joint; in the assembly to form the comprehensive pipe gallery, the first pipe material constitutes the longitudinal beam of the comprehensive pipe gallery, and the adjacent second pipe materials are connected to each other to form a comprehensive pipe gallery. The skeleton structure of the corridor.

Wherein, when the unit plates and side unit plates are assembled in the circumferential direction to form unit pipe joints, adjacent unit plates are connected by a pair of connecting plates, wherein each end of each unit plate is provided with a Connecting plates, and each connecting plate extends outward from the end of the unit plate, and the extended part serves as a splicing connection surface.

Preferably, when there are multiple plates on the side unit plate, second pipes are arranged side by side between adjacent plates, and the second pipes are circumferentially connected to form a skeleton structure of unit pipe joints.

The invention discloses another comprehensive pipe gallery with a frame-type combined structure, which includes unit pipe joints formed by assembling unit plates along the circumferential direction, and the unit pipe joints are assembled along the axial direction to form a comprehensive pipe gallery; wherein, the unit plates include The first hollow pipe extending in the axial direction of the unit pipe section, the second hollow pipe as the axial splicing end of the unit pipe section, and the plate provided in the space enclosed by the first pipe and the second pipe, while the first The pipes form the longitudinal beams of the comprehensive pipe gallery, and the adjacent second pipes are connected to each other to form the skeleton structure of the comprehensive pipe gallery.

Wherein, when the unit plates are assembled in the circumferential direction to form unit pipe joints, the first pipes at the contact ends of the adjacent unit plates are provided with circumferential connection holes, and the contact surfaces of the adjacent first pipes are spliced connection surfaces.

Preferably, when the unit plates are assembled in the circumferential direction to form unit pipe joints, adjacent unit plates are connected by a pair of connecting plates, wherein each end of each unit plate is provided with a connecting plate, and Each connection plate extends outward from the end of the unit plate, and the extension part serves as a splicing connection surface.

In particular, the first pipe and the second pipe are filled with concrete.

Further, there are protrusions on the outside and/or inside of the plate, the plate is made of a metal plate, and the metal plate itself is bent to form a protrusion; or the metal plate is bent to form a protrusion, and the plate or pipe is connected to the protrusion. combined to form a hollow cavity structure; or spliced by metal plates and metal tubes; or formed by buckling C-shaped steel, channel steel, I-beam, arc steel, angle steel or corrugated plates and metal plates with a hollow cavity Structural panels.

Preferably, the cross-section of the protrusion is a single cross-section or a combination of multiple cross-sections.

Furthermore, when the unit pipe joints are spliced in the axial direction, the second pipe material at the contact end of the adjacent unit plate is provided with an axial connection hole and an axial connection installation operation hole, and the contact surface of the adjacent second pipe material is Splicing connection surfaces.

Wherein, the first pipe material is a spliced steel pipe formed by combining a plurality of steel plates.

Preferably, when there are multiple plates on the unit plate, second pipes are arranged side by side between adjacent plates, and the second pipes are circumferentially connected to form the skeleton structure of the unit pipe joints.

The principle of the invention: firstly, in the assembly of the comprehensive pipe gallery, the first pipe material as the longitudinal beam of the comprehensive pipe gallery and the second pipe material forming the skeleton structure of the comprehensive pipe gallery bear the main load, which can prevent lateral instability and increase the overall strength;

Secondly, in the present invention, the first pipe material on the upper and lower unit plates and the plate with protrusions on the side unit plates on the side form a bridge corrugated steel web structure, and the shear principle of the bridge corrugated steel web structure is adopted. The principle of shear resistance of bridge steel web structure is mainly to replace concrete web with bridge corrugated steel web. The shear capacity of bridge corrugated steel webs is related to wave amplitude and wavelength. Relevant experiments show that the critical load decreases with the increase of wave length, but increases with the increase of wave amplitude. At the same time, when the wave amplitude tends to zero and the wavelength tends to infinity, the corrugated web becomes an ordinary flat plate. Obviously, under the same conditions, the critical load of the former is higher than that of the latter, indicating that the corrugated web has certain advantages in shear resistance. At present, the maximum single-span length of corrugated steel web bridges in China has reached 160 meters, and has the following stress characteristics:

1. The stress distribution is uniform. In the corrugated steel web box girder bridge, the concrete slab resists bending and the corrugated steel web resists shear; almost all the bending moments are borne by the upper and lower concrete slabs, while the shear force is basically borne by the corrugated steel web The web is borne, and the stress distribution in the web is approximately uniform, which is conducive to the full play of the material, as shown in Figure 1;

2. The radius of gyration of the section is increased, which improves the structural efficiency; the concrete in the corrugated steel web box girder bridge is concentrated at the upper and lower plates, and the radius of gyration is almost increased to the maximum value, which greatly improves the structural efficiency of the section;

3. The problem of web cracking is avoided, and the durability is good; traditional prestressed concrete box girder bridges are affected by external force loads and concrete shrinkage and creep, and cracks often appear in the web, resulting in weakened concrete sections and corrosion of steel bars. , while the corrugated steel web box girder bridge will not have the above problems, and the durability is better;

4. The torsional and anti-distortion stiffness is small. Compared with the ordinary concrete box girder, the torsional stiffness and anti-distortion stiffness of the corrugated steel web box girder section are reduced, but the corrugation can be improved by properly setting the diaphragm Torsional and distortional stiffness of steel-web box girders.

In addition, the plate with protrusions adopts the principle of large moment of inertia. The principle of large moment of inertia is to shape the straight plate into a plate with a raised structure in section, so that the section moment of inertia is greatly improved, and the bending, torsion and anti-bending The ability to deform is significantly improved, which in turn greatly increases the load-carrying capacity of the plate compared to a straight plate, and the degree of performance improvement depends on the shape and size of the protrusions.

In the present invention, the steel pipe concrete structure used as the longitudinal beam and the beam frame of the whole structure is used as the main pressure-bearing member to improve the strength of the whole structure. Among them, the working principle of steel pipe concrete structure is used. The steel pipe concrete structure refers to the structural member formed by filling the steel pipe with concrete and its core concrete to bear the external load together. According to the different cross-sectional forms, it can be divided into circular steel pipe concrete, square, square, Rectangular steel tube concrete and polygonal steel tube concrete, etc., as shown in Figure 2.

As a compression member, CFST can give full play to the superior compressive properties of concrete and the superior tensile properties of steel. When the steel tube concrete structure is under pressure, the radial direction of the concrete is constrained by the steel tube, and an interaction force is generated between the steel tube and the concrete, which is called the hoop force. This clamping force changes the stress state of the concrete, changing the one-way compression to three-way compression, so that the core concrete has stronger compressive strength and deformation resistance, as shown in Figure 3. The effect of steel pipe clamping greatly improves the mechanical properties of concrete and overcomes the brittleness of concrete. On the other hand, the concrete filling in the steel pipe enhances the stability of the steel pipe wall, and the mechanical performance is greatly improved. Thin-walled steel pipes are prone to local buckling failure, but the steel pipes in CFST structures are filled with concrete to increase the lateral stiffness of the pipe wall.

Performance characteristics of concrete filled steel pipe structure:

Superior mechanical properties:

It is proved by experiments and theoretical calculations that the compressive strength bearing capacity of CFST structure can reach 1.7-2.0 times of the sum of the corresponding individual bearing capacity of steel tube and concrete, as shown in Figure 4, that is, N3=(1.7-2.0)×(N1 +N2), where N1, N2, and N3 respectively represent the maximum bearing capacity of various structures.

Good plasticity, toughness and shock resistance:

Under the action of compression-bend-shear cyclic load, the structure has particularly good energy absorption performance, basically no stiffness degradation, and its seismic performance is much superior to that of reinforced concrete structures.

Saving raw materials, remarkable economic effect:

Under the condition of the same bearing capacity, when the steel structure is replaced by the steel pipe concrete structure, the amount of steel can be reduced by about 50%; when the reinforced concrete is replaced, the amount of concrete can be saved by more than 50%, the weight of the structure can be reduced by more than 50%, and the weight of the structure can be reduced by 50%. More than 100% of the structural cross-sectional area, saving 100% of the formwork.

In the present invention, steel pipes, concrete and plates are organically combined, and their respective characteristics and advantages are fully utilized to assume different roles in the overall structure.

Beneficial effects: compared with the prior art, the present invention has the following significant advantages:

(1) In the frame-type composite structure integrated pipe gallery, the first pipe material forms the longitudinal beam of the comprehensive pipe gallery, and the second pipe is connected circumferentially to form the skeleton structure of the comprehensive pipe gallery. The longitudinal beam and skeleton structure bear the main load, improving the load capacity of the pipe gallery capacity; the first pipe is connected with the side unit plates to form the bridge steel web structure of the comprehensive pipe gallery, which enhances the shear resistance of the pipe gallery, in which the plate is used not only as the wall plate of the pipe gallery, but also as the shear bridge steel web of the pipe gallery The web of the structure has been cleverly used; on the basis of this double-reinforced structure, the bearing capacity of the pipe gallery is greatly improved. Under the same filling height, the wall panels of the structure are thinner and save materials;

(2) The steel web structure of the bridge makes the axial length of the pipe gallery very long, so that the distance between the second pipes can be increased, and the number of the second short steel pipes can be reduced, thereby reducing the difficulty of making the pipe gallery and reducing the amount of construction , to reduce the amount of materials; due to the application of the bridge steel web shear structure, in addition to the special treatment of the lower foundation of the second pipe, the foundation between the second pipes does not need special treatment, and the gallery body can even be suspended, saving engineering costs;

(3) Fill the steel pipe with concrete, and use the principle of pipe-soil joint force to further improve its bearing capacity. Under the same filling height, the structural wall panel is thinner and saves materials;

(4) The moment of inertia of the plate cross section of the comprehensive pipe gallery is high, the bearing capacity is improved, and its wall thickness can be greatly reduced, which reduces the cost of materials, and when the strength of the corrugated plate is high, the distance between the steel pipes can be increased , reducing the use of materials, and also reducing the amount of concrete and the weight of the pipe gallery, which greatly reduces the manufacturing cost and improves the construction progress;

(5) Compared with the circular cross-section pipes, the structure of the comprehensive pipe gallery improves the utilization rate of the internal clearance, the clear width and clear height of the passage, and compared with the circular cross-section pipes, under the condition of ensuring the same internal clearance space, the pipe The height of the corridor is significantly reduced, which can reduce the foundation excavation depth and reduce the amount of civil engineering;

(6) The bottom flat surface or small curvature arc surface of the comprehensive pipe gallery can be used without paving, and its internal pipeline layout is more convenient, and can be directly used as a passage for passing people or vehicles, which solves the problem of backfilling circular cross-section pipes. The most important and most difficult problem is the backfilling construction and compaction degree of the wedge-shaped angle at the bottom;

(7) The comprehensive pipe gallery is a semi-flexible structure with good seismic performance, good anti-settlement performance, can absorb small deformation, and is not easy to crack; and special connecting members can be used between adjacent unit plates, which is conducive to improving the sealing performance And it is easy to install, the pipe joints and pipe joints are hidden inside the structural parts, and the pipe joints are hidden inside the pipe gallery, which affects the appearance;

(8) The comprehensive pipe gallery is a piece-assembled structure with fast construction speed and short construction period. A single section of pipe gallery can be as long as 15 to 25 meters (as long as the transportation conditions permit, it can be longer). There are few joints in the pipe gallery and it is easy to seal.

Description of drawings

Fig. 1 is the schematic diagram of the shear principle of bridge steel web structure of the present invention;

Fig. 2 is the schematic cross-sectional view of the steel pipe concrete structure of the present invention;

Fig. 3 is the stressed schematic diagram of concrete of the present invention;

Fig. 4 is the schematic diagram of axial stress of steel concrete of the present invention;

Figure 5(a)-5(b) is a schematic cross-sectional view of the first type of projections of the present invention;

Figure 6(a)-6(i) is a schematic cross-sectional view of the second type of projections of the present invention;

Figure 7(a)-7(b) is a schematic cross-sectional view of the third type of protrusion of the present invention;

Figure 8(a)-8(c) is a schematic cross-sectional view of the fourth type of protrusion of the present invention;

Fig. 9 (a) is a schematic diagram of the plate structure in the present invention;

Fig. 9 (b) is a schematic diagram of the plate end face in the present invention;

Fig. 10 is a schematic structural view of the first pipe of the present invention;

Fig. 11 is a schematic structural view of a second pipe of the present invention;

Fig. 12 is a schematic structural view of the second pipe as the axial connection end of the present invention;

Fig. 13 is a schematic structural view of a unit plate with a connecting plate in the present invention;

Fig. 14 is a schematic structural view of the side unit plate with connecting plate of the present invention;

Fig. 15 is a structural schematic diagram of a unit pipe joint of the present invention;

Fig. 16 is a schematic cross-sectional view of the comprehensive utility gallery of the present invention;

Fig. 17 is a partial enlarged view of place A in Fig. 16;

Fig. 18 is a schematic diagram of a longitudinal section of a comprehensive pipe gallery with a frame-type combined structure of the present invention;

Fig. 19 is a schematic diagram of the splicing structure of the first pipe material of the present invention.

detailed description

The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

As shown in FIG. 15 , the first frame-type combined structure integrated pipe gallery 100 disclosed in the present invention includes unit pipe sections 103 formed by combining and assembling unit plates 101 located on the upper and lower sides and side unit plates 102 located on both sides. The plates in the unit plates are all straight, as shown in Fig. 13 and Fig. 14 . Wherein, the plates in the unit plates can be arc-shaped or straight plates with small curvature, wherein the arc-shaped plates make the torsional rigidity of the unit plates higher, and the ability to resist vertical instability is stronger. Improve weld quality to a certain extent and reduce stress concentration. When the plate of the lower unit plate is straight, it can be used without paving, and its internal pipeline layout is more convenient, and it can be directly used as a passageway for passing people or vehicles.

As shown in Figure 15 and Figure 16, the unit pipe section 103 is rectangular. At the same time, a single pipe gallery can be as long as 15 to 25 meters. As long as the transportation conditions permit, the length can be longer, so that the joints of the entire pipe gallery are reduced and the airtightness is improved. Even better; the obtained unit pipe joints 103 are assembled in the axial direction to form a comprehensive pipe gallery 100 of frame-type composite structure.

As shown in FIG. 13 , the unit plate 101 is composed of a plate 106 , a second hollow pipe 105 located at two ends thereof, and a first hollow pipe 104 located at the other two ends thereof, as shown in FIGS. 10 and 11 . As shown in Figure 14, the side unit plate 102 is composed of a plate 106 and a second pipe 105 located at its two ends, and the second pipe 105 is the axial splicing end of the unit pipe section 103. , the first pipe material 104 forms the longitudinal beam of the comprehensive pipe gallery 100, the adjacent second pipe materials 105 are connected to each other to form the skeleton structure of the comprehensive pipe gallery 100, and the first pipe material 104 is circumferentially connected with the side unit plates 102 The bridge steel web structure forming the comprehensive pipe gallery 100. In the frame-type composite structure comprehensive pipe gallery, the first pipe material as the longitudinal beam of the comprehensive pipe gallery and the second pipe material of the skeleton structure of the pipe gallery bear the main load of the pipe gallery, which improves the bearing capacity of the pipe gallery; at the same time, the first pipe material and the side unit plate The steel web structure of the bridge formed by the circumferential connection of the plates enhances the shear resistance of the pipe gallery, and the plates are used as both the wall plate of the pipe gallery and the web of the shear bridge structure of the gallery body, which are cleverly used; On the basis of the reinforced structure, the bearing capacity of the pipe gallery is greatly improved. Under the same filling height, the wall panels of the structure are thinner and save materials; at the same time, the shear structure of the corrugated steel web bridge makes the axial length of the pipe gallery very long. In this way, the distance between the second pipes can be increased, and the number of the second short steel pipes can be reduced, thereby reducing the difficulty of making the pipe gallery, reducing the amount of construction, and reducing the amount of materials; due to the application of the corrugated steel web bridge shear structure, so Except that the foundation at the lower part of the second pipe needs special treatment, the foundation between the second pipes does not need special treatment, and the gallery body can even be suspended, which saves engineering costs.

Wherein the second pipe material 105 is connected end to end along the circumferential direction to form a skeleton structure, to block the steel pipe nozzles of the first pipe material 104 and the second pipe material 105, and to fill the first pipe material 104 and the second pipe material 105 with concrete 107, as shown in Figure 18 As shown, the present invention uses the principle of pipe-soil joint force to further improve its bearing capacity. Under the same filling height, the structural wallboard is thinner and saves materials.

In the present invention, there are protrusions 108 on the outside and/or inside of the plate 106, as shown in Figures 9(a) and 9(b). Wherein the plate 106 on the unit plate 101 is at least one, in order to increase the length of the unit plate 101, it can also be spliced by a plurality of plates, and the second pipe 105 is arranged side by side between the adjacent plates 106, the second pipe 105 are connected circumferentially to form the skeleton structure of the unit pipe section 103 . Similarly, the plate 106 on the side unit plate 102 is at least one piece. In order to increase the length of the side unit plate 102, it can also be spliced by multiple plates, and the second pipe 105 is arranged side by side between adjacent plates 106. The second pipes 105 are circumferentially connected to form a skeleton structure of the unit pipe section 103 . Wherein, the first pipe material 104 may be a spliced steel pipe. The steel pipe can be directly spliced by angle steel and bending parts to replace the whole profile, as shown in Figure 19, so as to facilitate the assembly of the entire structure on site and simplify the structure.

In the present invention, steel pipes form a rectangular frame as a skeleton structure to bear the main load and improve the bearing capacity; the pipe gallery is a box-shaped structure with protrusions, so the pipe gallery has a certain vertical pressure bearing capacity.

The above-mentioned protrusions 108 can be buckled separately on the plate 106, as shown in Fig. 5(a) and 5(b). The above-mentioned plate 106 is composed of a metal plate 109, wherein the protrusion 108 can be formed by bending the metal plate 109 itself. There are openings on the periphery of the cross section of the protrusion 108, as shown in Figures 6 (a) to 6 (g); wherein the unit plate is made of a metal plate 109, and the protrusion 108 can be a hollow cavity structure with a closed cross section periphery, and the hollow The cavity structure can be formed by bending the metal plate 109 itself, and the bent cross-sectional shape can be rectangular, circular, etc., and the gap formed between the hollow cavity structure and the metal plate 10+ is welded, as shown in Figure 6 ( h), 6(i).

It is also possible to bend the metal plate 109 to form the shape of the protrusion 108, and combine the plate or pipe with the protrusion 108 to form a hollow cavity structure, as shown in Figure 7 (a) and 7 (b), wherein the bent formed The shape of the cavity can be grooved, arc-shaped, semi-circular, etc., and the plates used can be straight plates, channel steel, C-shaped steel, arc-shaped plates, etc. The section form of the protrusion 108 is a single section form or a combination of multiple section forms. When the cross-sectional form of the protrusion 108 is a combination of various cross-sectional forms, it may be composed of a semi-rectangular cross-section and a semi-circular cross-section at intervals.

Plate 106 among the present invention can also be spliced by metal plate 109 and metal pipe 110, as shown in Figure 8 (a)-8 (c); The angle steel or the corrugated plate is fastened with the metal plate 109 to form a plate 106 with a hollow cavity structure. As above, bending the straight plate to form a plate with a shape such as arc, corrugation, and groove can increase the vertical bearing capacity of the unit plate.

The plate cross-sectional moment of inertia of the frame-type composite structure comprehensive pipe gallery is high, the bearing capacity is improved, the wall thickness can be greatly reduced, and the material cost is reduced. When the strength of the corrugated plate is high, the distance between the steel pipes can be increased. It reduces the use of materials, the amount of concrete and the weight of the pipe gallery, which greatly reduces the manufacturing cost and improves the construction progress.

When the above-mentioned unit plates 101 and side unit plates 102 are assembled in the circumferential direction to form unit pipe joints 103, adjacent unit plates are connected by a pair of connecting plates 112, as shown in Fig. 16 and Fig. 17 . Wherein, a connecting plate 112 is provided at the end of each unit plate, and each connecting plate 112 extends outward from the end of the unit plate, and the extended part serves as a splicing connection surface. For example, the extension parts of a pair of connecting plates 112 can be provided with circumferential connecting holes 111 and connected by bolts. Among them, the splicing connection surface shown in Figure 16 is in the horizontal direction, which is beneficial to drilling. The rest of the splicing connection surface can improve the rigidity and strength of the pipe joint during construction. The end position of the side unit plate can be leveled by using the above connecting plate, which is beneficial to installation and sealing; the connecting plate on the bottom unit plate facilitates the alignment of the side unit plate and plays the role of a guide slot; the outside of the comprehensive pipe gallery The bolt connection is convenient for installation; while the contact surface of adjacent unit plates is sealed, the seal of the extension part is added, and the double seal improves the sealing performance.

In the present invention, when the unit pipe joints 103 are spliced in the axial direction, the second pipe material 105 at the contact end of the adjacent unit plates is provided with an axial connection hole 113 and an axial connection installation operation hole 114, and the contact surface of the adjacent steel pipes is Splicing connection surfaces. For example, flange bolt connection can be used. In order to facilitate the connection and operation of bolts, an axial connection installation operation hole 114 is provided near the axial connection hole 113 in the steel pipe, and an installation and operation hole 114 is provided on the first pipe material 104 and the second pipe material 105. The flow hole 115 of pouring concrete 107 is used as pouring hole and overflow hole when pouring concrete, as shown in FIG. 12 . Of course, the contact surfaces of adjacent steel pipes can also be directly welded.

The second frame-type composite structure comprehensive pipe gallery 100 disclosed in the present invention, wherein the difference between the second frame-type composite structure comprehensive pipe gallery 100 and the first frame-type composite structure comprehensive pipe gallery 100 is that the second frame The comprehensive pipe gallery 100 of the type combined structure includes unit pipe joints 103 formed by assembling the unit plates 101 along the circumferential direction, and the unit pipe joints 103 are assembled along the axial direction to form the comprehensive pipe gallery 100 of the frame type combined structure; wherein, the unit plates 101 It includes the first pipe material 104 extending along the axial direction of the unit pipe section 103, the second pipe material 105 as the axial splicing end of the unit pipe section 103, and the plate material 106 provided in the space enclosed by the first pipe material 104 and the second pipe material 105, At the same time, the first pipe 104 forms the longitudinal beam of the comprehensive pipe gallery 100, the second pipe 105 is connected circumferentially to form the skeleton structure of the comprehensive pipe gallery 100, and the unit plates 101 located on the side walls of the comprehensive pipe gallery 100 form a comprehensive The bridge steel web structure of pipe gallery 100.

When the unit plates 101 in the comprehensive pipe gallery 100 of the second frame-type combined structure of the present invention are assembled along the circumferential direction to form the unit pipe joints 103, the first pipe material 104 at the contact end of the adjacent unit plates 101 is provided with a circumferential connection hole 111 , and the contact surface of the adjacent first pipe material 104 is a splicing connection surface. At the same time, when the unit plates 101 in the comprehensive pipe gallery 100 of the second frame-type combined structure are assembled along the circumferential direction to form the unit pipe joints 103, the adjacent unit plates 101 can also be connected by a pair of connecting plates 112, wherein each Each end of the unit plate 101 is provided with a connecting plate 112 , and each connecting plate 112 extends outward from the end of the unit plate 101 , and the extended part serves as a splicing connection surface.

Compared with the circular cross-section pipeline, the structure of the frame-type combined structure comprehensive pipe gallery of the present invention improves the utilization rate of the internal clearance, the clear width and clear height of passage, and compared with the circular cross-section pipeline, it can ensure the same internal clearance space. Next, the height of the pipe gallery is significantly reduced, which can reduce the foundation excavation depth and reduce the amount of civil engineering; secondly, the bottom of the pipe gallery is flat or small curvature arc surface, which can be used without paving, and its internal pipeline layout is more convenient , can be directly used as a passing passage for people or vehicles, which solves the most important and difficult problem of backfill construction and compaction at the bottom wedge angle when backfilling circular cross-section pipes; moreover, the pipe gallery is a semi-flexible structure, earthquake-resistant Good performance, good anti-settling performance, can absorb slight deformation, and is not easy to crack; and special connecting members can be used between adjacent unit plates, which is conducive to improving sealing performance and convenient installation. The frame-type combined structure comprehensive pipe gallery can generally be applied to underground common trenches, municipal public pipelines, underground water collection pipes, water supply and drainage pipes, pedestrian or vehicle passages, and protection pipes for underground pipelines.

Claims (12)

1. a frame type combined structure pipe gallery, it is characterized in that: include being formed unit tube coupling (103) by the unit sheet bar (101) being positioned at top and bottom and side unit plate (102) composite assembly being positioned at two sides, this unit tube coupling (103) is assembled vertically forms pipe gallery (100)；Wherein, the second tubing (105) that described unit sheet bar (101) by sheet material (106), is positioned at its two ends hollow and the first tubing (104) being positioned at its other two ends hollow form, described side unit plate (102) is by sheet material (106) and is positioned at second tubing (105) of its two ends hollow and forms, and this second tubing (105) is the axial splice ends of unit tube coupling (103)；In assembly forms pipe gallery (100), first tubing (104) constitutes the longeron of pipe gallery (100), and adjacent second tubing (105) is interconnected to form the framing structure of pipe gallery (100).

Frame type combined structure pipe gallery the most according to claim 1, it is characterized in that: during described unit sheet bar (101) and side unit plate (102) circumferentially assembled formation unit tube coupling (103), connected by a pair connecting plate (112) between adjacent cells plate, wherein, the end of each unit sheet bar is equipped with a connecting plate (112), and each connecting plate (112) stretches out from the end of unit sheet bar, extension is as splicing joint face.

Frame type combined structure pipe gallery the most according to claim 1, it is characterized in that: when the sheet material (106) on described side unit plate (102) is polylith, being provided with the second tubing (105) between adjacent sheet metal (106) side by side, this second tubing (105) circumference connects the framing structure forming unit tube coupling (103).

4. a frame type combined structure pipe gallery, it is characterized in that: including being formed unit tube coupling (103) by unit sheet bar (101) is circumferentially assembled, this unit tube coupling (103) is assembled vertically forms pipe gallery (100)；Wherein, described unit sheet bar (101) include the hollow extended along unit tube coupling (103) axial direction the first tubing (104), surround space as second tubing (105) of hollow of unit tube coupling (103) axially splice ends and this first tubing (104) and the second tubing (105) in the sheet material (106) that is provided with, the most described first tubing (104) forms the longeron of pipe gallery (100), and described adjacent second tubing (105) is interconnected to form the framing structure of pipe gallery (100).

Frame type combined structure pipe gallery the most according to claim 4, it is characterized in that: during described unit sheet bar (101) circumferentially assembled formation unit tube coupling (103), offer circumference connecting hole (111) on the contact end the first tubing (104) of adjacent cells plate (101), and the contact surface of adjacent first tubing (104) is splicing joint face.

Frame type combined structure pipe gallery the most according to claim 4, it is characterized in that: during described unit sheet bar (101) circumferentially assembled formation unit tube coupling (103), connected by a pair connecting plate (112) between adjacent cells plate (101), wherein, the end of each unit sheet bar (101) is equipped with a connecting plate (112), and each connecting plate (112) stretches out from the end of unit sheet bar (101), extension is as splicing joint face.

7. according to the frame type combined structure pipe gallery described in claim 1 or 4, it is characterised in that: described first tubing (104) and the second tubing (105) interior fill concrete (107).

8. according to the frame type combined structure pipe gallery described in claim 1 or 4, it is characterized in that: there is projection (108) outside of described sheet material (106) and/or inner side, described sheet material (106) is made up of metallic plate (109), and this metallic plate (109) bent upon itself forms projection (108)；Or metallic plate (109) is bent to form projection (108) shape, form hollow cavity structure with sheet material or tubing with this projection (108) combination；Or be spliced by metallic plate (109) and metal tube (110)；Or formed the sheet material (106) with hollow cavity structure by C-type steel, channel-section steel, I-steel, arc-shaped steel, angle steel or corrugated plating with metallic plate (109) fastening.

Frame type combined structure pipe gallery the most according to claim 8, it is characterised in that: the cross section of described projection (108) is single section form or multiple section form combines.

10. according to the frame type combined structure pipe gallery described in claim 1 or 4, it is characterized in that: when described unit tube coupling (103) is spliced vertically, offer axial connecting hole (113) on the contact end the second tubing (105) of adjacent cells plate and axially connect installation handle hole (114), and the contact surface of adjacent second tubing (105) is splicing joint face.

11. according to the frame type combined structure pipe gallery described in claim 1 or 4, it is characterised in that: described first tubing (104) is the spliced steel pipe that plurality of steel plates combines.

12. according to the frame type combined structure pipe gallery described in claim 1 or 4, it is characterized in that: when the sheet material (106) on described unit sheet bar (101) is polylith, being provided with the second tubing (105) between adjacent sheet metal (106) side by side, this second tubing (105) circumference connects the framing structure forming unit tube coupling (103).