Wall-attached bearing support and application method thereof

Abstract

The invention provides a wall-attached type bearing support and an application method thereof. The wall-attached type bearing support comprises a bearing base, a fastening clamping piece and a horizontal cross rod support. The bearing base is of a plurality of parallel frame structures and is horizontally and fixedly arranged on the shear wall, and the lower sections of the electromechanical pipelines arranged side by side are erected in the multiple parallel frame structures correspondingly and used for providing main supporting force for the lower sections of the electromechanical pipelines. The fastening clamping piece is arranged on the outer wall of the lower section of the electromechanical pipeline in a hooping mode, rib plates are symmetrically arranged on the two sides of the fastening clamping piece respectively, and the electromechanical pipeline is erected on the frame structure of the bearing base through the rib plates on the two sides of the fastening clamping piece. The horizontal cross rod support is horizontally and fixedly arranged on the shear wall, located above the bearing base in parallel and used for providing auxiliary supporting force for the electromechanical pipeline. The stress of the electromechanical pipeline is dispersed to the connecting position of the transverse rod and the shear wall and transferred to the shear wall, the problem that the bearing load of the floor is too large is solved, the structural stability is guaranteed, and the stress is safer and more reliable.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering construction, and in particular to a wall-mounted load-bearing bracket and an application method thereof. Background Art

[0002] The vertical pipe load-bearing bracket is a very important bracket component in the pipeline installation process. The setting form and installation position of the load-bearing bracket determine its own bearing capacity and the load force on the structure. The load-bearing bracket is mainly composed of a load-bearing cross bar, a load-bearing tie rod and a bracket body frame.

[0003] In large high-rise buildings, the layout of pipelines in pipe wells is generally dense. In the early stage of design, the structural unit often fails to fully consider the full load state value of the electromechanical pipelines when designing the load-bearing load of the pipe well floor. At the same time, most of the pipe well floors in high-rise buildings are post-cast bottom plates, and the bearing capacity of the beams and slabs is relatively smaller than that of the integrally cast floors. When the electromechanical unit enters the site for installation in the later stage, the comprehensive pipelines are deepened through the layout and the design of new pipelines. If the load-bearing brackets of all pipelines are subjected to force on the structural plate, it may affect the stability of the structure and cause certain safety hazards. The main factors affecting the site are as follows:

[0004] According to the actual situation on site, most of the pipelines in the pipe well are connected.

[0005] (1) The pipes are densely arranged, and the openings of the same pipe well are larger, so the span of the opening reinforcement beam is large, the bending moment value is small, and the stress point of the beam is also small.

[0006] (1) The electromechanical pipelines in the pipeline well are dense and complex, and the spatial arrangement is relatively compact, which is not enough for the structural unit to design the opening reinforcement load-bearing beam to a larger size.

[0007] (3) The pipes in the integrated pipe shaft are often equipped with air conditioning and power pipes. The operating weight of these pipes cannot be accurately considered within the load range of the floor slab.

[0008] (4) In high-rise buildings, the diameter of risers is generally larger than that in low-rise buildings, which further increases the load-bearing capacity of the floor slab.

[0009] (5) In high-rise buildings, the integrated pipe shaft floor is generally a post-cast floor, which is subjected to relatively less force than the integral casting floor.

[0010] (6) In the pursuit of maximizing the available area of ​​the building, this bracket can minimize the area occupied by the bracket, reduce the size of the pipe shaft, and increase the available area of ​​the floor. Summary of the invention

[0011] The invention aims to provide a pipe load-bearing bracket installed on a shear wall and having a safer and more reliable force-bearing property, and an application method thereof.

[0012] In order to achieve the above technical objectives, the present invention provides the following technical solutions:

[0013] A wall-mounted load-bearing bracket is used to install several electromechanical pipelines arranged in parallel on a shear wall; it includes a supporting base, a fastening clip and a horizontal crossbar bracket; the supporting base adopts several parallel frame structures, which are horizontally fixedly arranged on the shear wall, and the lower sections of the electromechanical pipelines arranged in parallel are respectively erected in the several parallel frame structures, which are used to provide main supporting force for the lower sections of the electromechanical pipelines; the fastening clip clamp is arranged on the outer wall of the lower section of the electromechanical pipeline, and ribs are symmetrically provided on both sides of the fastening clip, and the electromechanical pipeline is erected on the frame structure of the supporting base through the ribs on both sides of the fastening clip; the horizontal crossbar bracket is horizontally fixedly arranged on the shear wall, and is located parallel to the supporting base above, which is used to provide auxiliary supporting force for the electromechanical pipeline.

[0014] Preferably, an adjustable supporting rod is provided in the frame structure of the supporting base, and the supporting rod is welded in the frame structure of each group of the supporting base according to the diameter of the electromechanical pipeline, and is used to install electromechanical pipelines of different diameters on the supporting base.

[0015] Preferably, the fastening clips are made of two groups of semicircular tube clamps, the inner arc size of the tube clamps corresponds to the outer arc size of the electromechanical pipeline, so as to clamp the key electromechanical pipeline; the two ends of the tube clamps are respectively provided with clip side ears, and the two groups of tube clamps are connected by fasteners through the clip side ears at both ends, so that the clamp is set on the outer wall of the lower section of the electromechanical pipeline.

[0016] Preferably, a rubber pad is provided between the electromechanical pipeline and the fastening clip, and the rubber pad is used to increase the friction between the electromechanical pipeline and the fastening clip, thereby improving the stability of the fastening clip when clamping.

[0017] Preferably, the two ends of the supporting base and the two ends of the horizontal cross bar bracket are fastened to the shear wall by fasteners through a fixing block 1 and a fixing block 2 respectively.

[0018] Preferably, the supporting base and the horizontal cross bar bracket are connected via a diagonal tie rod, one end of the diagonal tie rod is fixedly arranged on two outer sides of the supporting base, and the other end of the diagonal tie rod is fixedly arranged on fixed block two; the gravity on the supporting base is transmitted to the shear wall respectively via the fixed block one connected thereto, and the diagonal tie rod connected thereto is transmitted via the fixed block two.

[0019] Preferably, a 60° installation setting is adopted between the inclined brace and the shear wall, so as to stably fix the supporting base on the shear wall and transfer the gravity force to the shear wall.

[0020] Preferably, the upper section of the electromechanical pipeline is arranged on the horizontal crossbar bracket through a U-shaped steel bar clamp, which is used to further stably fix it to the shear wall and transfer the gravity of the electromechanical pipeline to the shear wall.

[0021] Preferably, the U-shaped steel bar comprises a semicircular flat steel, both ends of which are respectively connected to a flat steel bar, and the size of the semicircular flat steel is adapted to the outer arc size of the electromechanical pipeline, and is used to clamp electromechanical pipelines of different diameters.

[0022] The present invention also provides an application method of a wall-mounted load-bearing bracket, comprising the following steps:

[0023] Step S1: Preparation

[0024] Step S11: Calculation and material selection: First, perform a stress analysis on the electromechanical pipelines, and then combine the stress analysis of the bracket to calculate the bracket frame channel steel selection, the channel steel selection of the crossbeam and the cable-stayed beam, the installation position and cable-stayed angle of the cable-stayed beam, and the size of the rib plate. By adjusting the size of the channel steel and steel plates of different specifications, they can adapt to water pipes of different specifications and quantities.

[0025] Step S12: prefabricate the fixing block 1 4 and the fixing block 2 5 required to fix the electromechanical pipeline 1, and locate the installation positions of the fixing block 1 4 and the fixing block 2 5 corresponding to the electromechanical pipeline 1;

[0026] Step S2: Install the support base

[0027] A plurality of parallel frame structures are welded into an integrated supporting base, and two ends of the supporting base are fastened to the shear wall through a fixing block 1, and are horizontally fixedly arranged on the shear wall.

[0028] Step S3: Install the horizontal crossbar support

[0029] The two ends of the horizontal cross bar bracket are fastened to the shear wall by fasteners through the fixing block 2, and are fixed horizontally on the shear wall and located parallel to the supporting base to provide auxiliary support for the electromechanical pipelines.

[0030] Step S4: Install the diagonal brace of the load-bearing bracket

[0031] The supporting base and the horizontal cross bar bracket are connected by a diagonal tie rod, one end of the diagonal tie rod is fixedly arranged on the two outer sides of the supporting base, and the other end of the diagonal tie rod is fixedly arranged on the fixed block 2; the diagonal tie rod is formed by welding galvanized channel steel (the size of the steel plate and the model of the channel steel are selected and adjusted according to the size of the water pipe and the number), and the gravity on the supporting base is transmitted to the shear wall through the fixed block 1 connected to it and the diagonal tie rod connected to it through the fixed block 2.

[0032] Furthermore, when a ° installation arrangement is adopted between the diagonal brace and the shear wall, the supporting base can be more stably fixed on the shear wall and transmit the gravity force to the shear wall.

[0033] The position where the supporting base is connected to the diagonal brace is the first fixed force point, which is used to transfer the force on the supporting base to the shear wall through the diagonal brace and the fixed block 2.

[0034] The position where the supporting base is fixed to the shear wall through its own steel plate body in the horizontal direction is the second fixed stress point. The entire load of the electromechanical pipeline on the supporting base is borne through the above two stress points.

[0035] Step S5: Pipeline hanging and fixed installation

[0036] A plurality of electromechanical pipelines are vertically hoisted by hoisting equipment and passed through a plurality of parallel frame structures of a supporting base, and are clamped on the outer wall of the lower section of the electromechanical pipeline by means of fastening clips. The fastening clips use two groups of semicircular pipe clamps, and the two groups of pipe clamps are connected by fasteners through the side ears of the clamps at both ends, so that the clamps are set on the outer wall of the lower section of the electromechanical pipeline; the electromechanical pipeline is erected on the supporting rod in the frame structure of the supporting base by means of ribs on both sides of the fastening clips, and the weight of the electromechanical pipeline is transferred to the supporting base by means of the ribs, and the two stress points in step S can bear all the loads of the electromechanical pipeline on the entire supporting base, thereby optimizing the coordination work of the civil engineering and electromechanical unit construction, while also reducing the probability of safety hazards, improving the construction quality, and solving the problem of uneven stress on the electromechanical pipeline on the floor in the prior art.

[0037] The upper section of the electromechanical pipeline is set on the horizontal crossbar bracket through a U-shaped steel bar clamp, which can further stably fix the electromechanical pipeline to the shear wall and further transfer the gravity of the electromechanical pipeline to the shear wall.

[0038] Compared with the prior art, the present invention has the following characteristics and beneficial effects:

[0039] (1) The present invention uses the bracket diagonal brace to make the weight of the bracket and its pipes mainly bear the force at the connection between the diagonal brace and the shear wall, thereby transferring the main overall weight from the structural floor to the shear wall, solving the problem of excessive load on the floor and ensuring structural stability.

[0040] (2) The present invention uses the cross-bracing rods of the bracket to place part of the weight of the bracket and its pipes at the connection between the cross-bracing rods and the shear wall, thereby transferring part of the overall weight from the structural floor to the shear wall, solving the problem of excessive load on the floor and ensuring structural stability.

[0041] (3) The present invention connects the support crossbar and the diagonal brace to the shear wall respectively, so that the support as a whole forms a triangle, thereby ensuring the stability of the force on the entire support and solving the problem of instability caused by uneven force on the support.

[0042] (4) The present invention attaches the bracket as a whole to the shear wall, eliminating the provision of the bracket's ground-standing legs. Compared with traditional brackets, this reduces the space limitation of the bracket during installation and optimizes the installation space.

[0043] (5) The present invention can adjust the installation time of the diagonal brace according to actual installation requirements by adjusting the installation sequence of the diagonal brace, thereby optimizing the convenience of pipeline installation and making the installation process more convenient.

[0044] (6) The present invention fixes the pipeline on the load-bearing bracket through the clip and the ribs on the clip, avoiding the situation where the ribs are directly welded to the pipeline, thereby optimizing the convenience of pipeline installation and avoiding the stress of the pipeline caused by the rib welding. At the same time, it can protect the galvanized protective layer of the galvanized steel pipe from being damaged.

[0045] In summary, compared with the prior art, which places the mechanical and electrical pipelines on the structural floor, the present invention places a part of the mechanical and electrical pipelines on the connection between the crossbar and the shear wall, thereby transferring a part of the overall weight from the structural floor to the shear wall, solving the problem of excessive load on the floor, ensuring structural stability, and making the force safer and more reliable. In addition, the present invention does not require the installation of floor-standing legs, thereby reducing the restrictions of the space size on the installation process when the bracket is installed, and increasing the convenience and operability of the actual operation. It solves the technical problem that the weight load of the pipeline cannot be placed entirely on the floor during design, which may cause the floor to be overloaded. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of the three-dimensional structure of a wall-mounted load-bearing bracket provided in an embodiment of the present invention;

[0047] Figure 2 A schematic side structural diagram of a wall-mounted load-bearing bracket provided in an embodiment of the present invention;

[0048] Figure 3 A flow chart of an application method of a wall-mounted load-bearing bracket provided in an embodiment of the present invention.

[0049] The serial numbers in the figure are as follows:

[0050] 1. Mechanical and electrical pipelines; 2. Support base; 3. Support rod; 4. Fixed block 1; 5. Fixed block 2; 6. Horizontal cross bar bracket; 7. Fastening clip; 8. Clip side ears; 9. Rib plate; 10. U-shaped steel bar; 11. Diagonal brace. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0052] Figure 1 A schematic diagram of the three-dimensional structure of a wall-mounted load-bearing bracket provided in this embodiment.

[0053] Figure 2 A schematic diagram of the side structure of a wall-mounted load-bearing bracket provided in this embodiment.

[0054] like Figure 1 and Figure 2 As shown, a wall-mounted load-bearing bracket disclosed in this embodiment is used to install a plurality of electromechanical pipelines 1 arranged in parallel on a shear wall, including a supporting base 2, a fastening clip 7 and a horizontal crossbar bracket 6.

[0055] The supporting base 2 adopts several parallel frame structures, both ends of which are fastened to the shear wall through a fixing block 4, and are horizontally fixed on the shear wall. The lower sections of several parallel electromechanical pipelines 1 are respectively erected in several parallel frame structures, which are used to provide the main supporting force for the lower sections of the electromechanical pipelines 1.

[0056] The fastening clamp 7 is arranged on the outer wall of the lower section of the electromechanical pipeline 1. The fastening clamp 7 adopts two groups of semicircular pipe clamps. The inner arc size of the pipe clamp corresponds to the outer arc size of the electromechanical pipeline 1, so as to clamp the key electromechanical pipeline 1; the two ends of the pipe clamp are respectively provided with clamp side ears 8, and the two groups of pipe clamps are connected by fasteners through the clamp side ears 8 at both ends, so that the clamp is arranged on the outer wall of the lower section of the electromechanical pipeline 1.

[0057] Furthermore, in order to stably clamp the electromechanical pipeline 1, the present invention arranges a rubber pad between the electromechanical pipeline 1 and the two groups of pipe clamps, and the rubber pad is used to increase the friction between the electromechanical pipeline 1 and the fastening clamp 7, thereby improving the stability of the two groups of pipe clamps when clamping the electromechanical pipeline 1.

[0058] A rib plate 9 is welded on the central axis of the outer side of each group of tube clamps. The two rib plates 9 after the two groups of tube clamps are connected are symmetrically arranged, which is equivalent to the rib plates 9 being symmetrically arranged on both sides of the fastening clamps 7. The two rib plates 9 set the electromechanical pipeline 1 on the frame structure of the supporting base 2, and the weight of the electromechanical pipeline 1 is transferred to the supporting base 2 through the rib plates 9.

[0059] Furthermore, in order to adapt to different critical electromechanical pipelines 1, this embodiment provides an adjustable supporting rod 3 in the frame structure of the supporting base 2. The supporting rod 3 is welded in the frame structure of each group of supporting bases 2 according to the pipe diameter size of the electromechanical pipeline 1, and the electromechanical pipeline 1 is mounted on the supporting rod 3 in the frame structure of the supporting base 2 by fastening the ribs 9 on both sides of the clip 7.

[0060] Both ends of the horizontal crossbar bracket 6 are fastened to the shear wall by means of fasteners through the fixing block 2 5 , and are horizontally fixed on the shear wall and located parallel to the supporting base 2 , so as to provide auxiliary support force for the electromechanical pipeline 1 .

[0061] Furthermore, in this embodiment, the supporting base 2 and the horizontal cross bar bracket 6 are connected by a diagonal tie rod 11, one end of the diagonal tie rod 11 is fixedly arranged on the two outer sides of the supporting base 2, and the other end of the diagonal tie rod 11 is fixedly arranged on the fixed block 2 5; the diagonal tie rod 11 is formed by welding galvanized channel steel (the size of the steel plate and the model of the channel steel are selected and adjusted according to the size of the water pipe and the quantity), and the gravity on the supporting base 2 is transmitted to the shear wall through the fixed block 4 connected thereto and the diagonal tie rod 11 connected thereto through the fixed block 2 5.

[0062] When the inclined brace 11 and the shear wall are installed at an angle of 60 degrees, the supporting base 2 can be more stably fixed on the shear wall and transmit the gravity to the shear wall.

[0063] This embodiment includes two fixed stress points. The first stress point is the position where the supporting base 2 is connected to the diagonal brace 11, and the second stress point is the position where the supporting base 2 is fixed to the shear wall in the horizontal direction through the steel plate body. These two stress points bear all the loads of the electromechanical pipeline 1 on the entire supporting base 2.

[0064] By fixing the supporting base 2 and the diagonal brace 11 on the shear wall and then fixing the electromechanical pipeline 1 on the supporting base 2, the overall weight of the electromechanical pipeline 1 is dispersed, the coordination work of the civil engineering and electromechanical construction is optimized, and the probability of safety hazards is reduced. The construction quality is improved, and the problem of uneven force on the electromechanical pipeline 1 on the floor in the prior art is solved.

[0065] Furthermore, in this embodiment, in order to further stably fix the electromechanical pipeline 1 to the shear wall and transfer the gravity of the electromechanical pipeline 1 to the shear wall, the upper section of the electromechanical pipeline 1 is clamped on the horizontal crossbar bracket 6 through a U-shaped steel bar 10. The U-shaped steel bar 10 includes a semicircular flat steel, and the two ends of the semicircular flat steel are respectively connected to the flat steel bar. The size of the semicircular flat steel is adapted to the outer arc size of the electromechanical pipeline 1, and is used to clamp electromechanical pipelines 1 of different diameters.

[0066] Figure 3A flow chart of an application method of a wall-mounted load-bearing bracket provided in an embodiment.

[0067] like Figure 3 As shown, according to the above-mentioned wall-mounted load-bearing bracket, the present invention also provides an application method thereof, comprising the following steps:

[0068] Step S1: Preparation

[0069] Step S11: Calculation and material selection: First, perform a stress analysis on the electromechanical pipelines, and then combine the stress analysis of the bracket to calculate the bracket frame channel steel selection, the channel steel selection of the crossbeam and the cable-stayed beam, the installation position and cable-stayed angle of the cable-stayed beam, and the size of the rib plate. By adjusting the size of the channel steel and steel plates of different specifications, they can adapt to water pipes of different specifications and quantities.

[0070] Step S12: prefabricate the fixing block 1 4 and the fixing block 2 5 required to fix the electromechanical pipeline 1 , and locate the fixing block 1 4 and the fixing block 2 5 at installation positions corresponding to the electromechanical pipeline 1 .

[0071] Step S2: Install the support base 2

[0072] A plurality of parallel frame structures are welded into an integrated supporting base 2, and both ends of the supporting base 2 are fastened to the shear wall through a fixing block 4, and are horizontally fixedly arranged on the shear wall.

[0073] Step S3: Install the horizontal crossbar support 6

[0074] The two ends of the horizontal cross bar bracket 6 are fastened to the shear wall by fasteners through the fixing block 2 5 , and are horizontally fixed on the shear wall and located parallel to the supporting base 2 to provide auxiliary support for the electromechanical pipeline 1 .

[0075] Step S4: Install the diagonal brace 11 of the load-bearing bracket

[0076] The supporting base 2 and the horizontal cross bar bracket 6 are connected by a diagonal tie rod 11, one end of the diagonal tie rod 11 is fixedly arranged on the two outer sides of the supporting base 2, and the other end of the diagonal tie rod 11 is fixedly arranged on the fixed block 2 5; the diagonal tie rod 11 is formed by welding galvanized channel steel (the size of the steel plate and the model of the channel steel are selected and adjusted according to the size of the water pipe and the quantity), and the gravity on the supporting base 2 is transmitted to the shear wall through the fixed block 4 connected to it and the diagonal tie rod 11 connected to it through the fixed block 2 5.

[0077] Furthermore, when the inclined brace 11 and the shear wall are installed at a 60° angle, the supporting base 2 can be more stably fixed on the shear wall and transmit the gravity to the shear wall.

[0078] The position where the supporting base 2 is connected to the diagonal brace 11 is the first fixed force point, which is used to transfer the force on the supporting base 2 to the shear wall through the diagonal brace 11 and the fixed block 2 5.

[0079] The position where the supporting base 2 is fixed to the shear wall through its own steel plate body in the horizontal direction is the second fixed stress point, and the entire load of the electromechanical pipeline 1 on the supporting base 2 is borne through the above two stress points.

[0080] Step S5: Pipeline hanging and fixed installation

[0081] A plurality of electromechanical pipelines 1 are vertically hoisted by hoisting equipment and passed through a plurality of parallel frame structures of the supporting base 2, and are clamped on the outer wall of the lower section of the electromechanical pipeline 1 by means of fastening clips 7. The fastening clips 7 adopt two groups of semicircular pipe clamps, and the two groups of pipe clamps are connected by fasteners through the side ears 8 of the clips at both ends, so that the clamps are set on the outer wall of the lower section of the electromechanical pipeline 1; the electromechanical pipeline 1 is erected on the supporting rod 3 in the frame structure of the supporting base 2 by means of the ribs 9 on both sides of the fastening clips 7, and the weight of the electromechanical pipeline 1 is transferred to the supporting base 2 by means of the ribs 9, and the two stress points of step S3 can bear all the loads of the electromechanical pipeline 1 on the entire supporting base 2, thereby optimizing the coordination work of the civil engineering and electromechanical unit construction, while also reducing the probability of safety hazards, improving the construction quality, and solving the problem of uneven stress on the electromechanical pipeline 1 on the floor in the prior art.

[0082] The upper section of the electromechanical pipeline 1 is clamped on the horizontal crossbar support 6 through the U-shaped steel bar 10, which can further stably fix the electromechanical pipeline 1 to the shear wall and further transfer the gravity of the electromechanical pipeline 1 to the shear wall.

[0083] In this embodiment, with respect to the calculation and material selection in step S11, this embodiment lists the following data for detailed description:

[0084] This example uses a nine-tube four-layer fixed bracket for selection and calculation

[0085] Pipe weight:

[0086] Pipe type: two DN200, two DN250, pipeline length is three to ten floors above ground, pipeline length = 33 meters

[0087] DN200 pipe weight = 0.02466 * (outer diameter - wall thickness) * wall thickness * 9.8 * pipe length = 10.2KNDN250 pipe weight = 0.02466 * (outer diameter - wall thickness) * wall thickness * 9.8 * pipe length = 16.9KNAdditional weight of pipe (insulation, wing plate, etc.) is considered according to 1.2

[0088] Total weight of DN200 pipe = 10.2KN*1.2 = 12.2KN

[0089] Total weight of DN250 pipe = 16.9KN*1.2 = 20.3KN

[0090] Water pressure thrust in the pipeline:

[0091] There are no elbows and heads at the riser, and no water pressure thrust

[0092] Bellows compensator reaction force:

[0093] The compensator reaction force is calculated according to the maximum temperature difference when the compensator is subjected to force, the direction is downward, and the linear expansion coefficient of the steel pipe is: 12X10 -6

[0094] DN200 pipe is a hot water pipe:

[0095] Installation temperature: 5℃ Operating temperature: 55℃

[0096] Pipeline elongation = pipeline length * temperature difference * steel linear expansion coefficient = 19.8mm DN250 pipe is a chilled water pipe:

[0097] Installation temperature: 5℃ Summer temperature: 35℃

[0098] Pipeline elongation = pipeline length * temperature difference * steel linear expansion coefficient = 11.9mm

[0099] The reference selection of compensator is as follows Table 1:

[0100] Table 1

[0101]

[0102]

[0103] DN200 compensator reaction force = pipe elongation * compensator stiffness = 19.8 * 1615 = 32KN DN250 compensator reaction force = pipe elongation * compensator stiffness = 11.9 * 4180 = 49.7KN Total load:

[0104] The pipeline dynamic load coefficient is considered according to 1.2:

[0105] DN200 pipeline total load = (total pipeline weight + hydraulic thrust + compensator reaction force) * 1.2 = 53KN

[0106] DN250 total pipe load = (total pipe weight + hydraulic thrust + compensator reaction force)

[0107] *1.2=84KN

[0108] Cross arm selection review:

[0109] The 905mm section was selected as the most unfavorable section for re-calculation.

[0110] F1=2*F2=2*F3=F4=21KN

[0111] According to "03S402: Indoor pipe supports and hangers"

[0112] Calculation of beam bending strength:

[0113] 1.5M x / (r x *W nx )+1.5M y / (r x *W nx )≤0.85f

[0114] r x 、r y — Section plastic development coefficient, generally 1.05 for profiles

[0115] M X 、M Y —Bending moments of the cross section around the X-axis and the Y-axis (N-mm)

[0116] W nx , W ny —Net section resistance moment of the verified section to the X-axis and the Y-axis (mm 3 )

[0117] f—design value of tensile strength of steel (N / mm 3 )

[0118] The tensile strength of steel is 370 according to Q235

[0119] According to the force calculation, we can get:

[0120] M X =9061.9N*mm M Y =2504.2N*mm

[0121] Check the hardware manual

[0122] Performance parameters of 14# channel steel:

[0123] W nx =87.4W ny =14.1

[0124] Substituting into the formula we get

[0125] 1.5M x / (r x *W nx )+1.5M y / (rx *W nx )=201.2<314.5,

[0126] The conclusion is: the bending strength of 14# channel steel meets the requirements.

[0127] Calculation of shear strength of beams:

[0128] τ=1.5√(V x 2 +V y 2 ) / S1≤0.85f v

[0129] τ—shear strength (N / mm 2 )

[0130] V x 、V y — Maximum shear forces on the beam section about the x-axis and y-axis

[0131] S1—beam cross-sectional area

[0132] fv—safety allowable stress, 160MPa for general steel

[0133] According to the force calculation, we can get:

[0134] V x =31674N V y =8887N Substituting into the formula we get:

[0135] τ=1.5(V x 2 +V y 2 ) / S1=23.15≤136,

[0136] The conclusion is: the shear strength of 14# channel steel meets the requirements.

[0137] Tripod bracket selection review:

[0138] The triangular bracket at the center is the most unfavorable bracket.

[0139] The upper pull rod is subjected to a tensile force of N1. The steel section judgment formula refers to the calculation formula for the tension of the hanger rod in "03S402: Indoor Pipe Supports and Hangers".

[0140] A N ≥1.5N1 / 0.85f

[0141] A n —Steel cross-sectional area, mm 2

[0142] N1=Pv / sinα

[0143] According to the support force analysis, we can get:

[0144] P V =161500N N1=186484N

[0145] According to the hardware manual, channel steel No. 14, An = 2131mm 2 , f takes the tensile strength of steel as 370MPa

[0146] By calculation, we can get: 1.5N1 / 0.85f=889<2131,

[0147] Therefore, the upper pull rod is made of No. 14 channel steel to meet the requirements.

[0148] The formula for determining the cross section of a beam is:

[0149] σ=N2 / φA L ≤[σ] t

[0150] N2=P V / tanα

[0151] φ—compression rod stability coefficient, which is determined according to the slenderness ratio of the compression rod and is taken as 1.

[0152] A L —Cross-sectional area of ​​diagonal brace, mm 2

[0153] [σ]t—allowable stress is 215MPa

[0154] P V =161500N N2=93242N

[0155] According to the hardware manual, the cross-sectional area of ​​channel steel No. 14 is Ab = 2131 mm 2 ,

[0156] Calculation can be obtained

[0157] σ=43.75<215,

[0158] Therefore, No. 14 channel steel is selected for the crossbeam to meet the requirements.

[0159] The pipe load-bearing bracket provided by the present invention has stable installation. Through force analysis, the installation dimensions and angles of the transverse bracket and the diagonal brace are set, and the overall force of the pipe is attached to the shear wall, ensuring that the pipe is more stable and safer during operation. Especially for power pipes or pipes with thermal displacement, the vibration of the pipe during operation can be transmitted to the shear wall, greatly reducing the impact on the structural floor and ensuring the stability of the floor structure. In high-rise buildings and narrow pipe wells, the application method of the load-bearing bracket in the present invention is particularly important.

[0160] Compared with the prior art, which places the mechanical and electrical pipelines under stress on the structural floor, the present invention places a part of the mechanical and electrical pipelines under stress at the connection between the crossbar and the shear wall, thereby transferring a part of the overall weight from the structural floor to the shear wall, solving the problem of excessive load on the floor, ensuring structural stability, and making stress safer and more reliable. In addition, the present invention does not require the installation of floor legs, thereby reducing the restrictions of the space size on the installation process when the bracket is installed, and increasing the convenience and operability of the actual operation. It solves the technical problem that the weight load of the pipeline cannot be completely placed on the floor during design, which may cause the floor to be overloaded.

[0161] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0162] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0163] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wall-mounted load-bearing bracket, used for mounting a plurality of electromechanical pipelines (1) arranged in parallel on a shear wall; characterized in that: It comprises a supporting base (2), a fastening clip (7) and a horizontal crossbar bracket (6); The supporting base (2) adopts a plurality of parallel frame structures, which are fixedly arranged horizontally on the shear wall, and the lower sections of the plurality of parallel electromechanical pipelines (1) are respectively erected in the plurality of parallel frame structures, so as to provide main supporting force for the lower sections of the electromechanical pipelines (1); The clamp of the fastening clip (7) is arranged on the outer wall of the lower section of the electromechanical pipeline (1), and ribs (9) are symmetrically arranged on both sides of the fastening clip (7), and the electromechanical pipeline (1) is mounted on the frame structure of the supporting base (2) through the ribs (9) on both sides of the fastening clip (7); The horizontal crossbar bracket (6) is fixedly arranged horizontally on the shear wall and is located parallel to and above the supporting base (2), and is used to provide auxiliary supporting force for the electromechanical pipeline (1).

2. A wall-mounted load-bearing bracket according to claim 1, characterized in that: An adjustable supporting rod (3) is provided in the frame structure of the supporting base (2); the supporting rod (3) is welded in the frame structure of each group of the supporting bases (2) according to the diameter of the electromechanical pipelines (1), and is used to install electromechanical pipelines (1) of different diameters on the supporting bases (2).

3. A wall-mounted load-bearing bracket according to claim 1, characterized in that: The fastening clips (7) are two groups of semicircular pipe clips, the inner arc size of the pipe clips corresponding to the outer arc size of the electromechanical pipeline (1), so as to clamp the key electromechanical pipeline (1); the two ends of the pipe clips are respectively provided with clip side ears (8), and the two groups of pipe clips are connected by fasteners through the clip side ears (8) at the two ends, so that the clamp is set on the outer wall of the lower section of the electromechanical pipeline (1).

4. The wall-mounted load-bearing bracket according to claim 1, characterized in that: A rubber pad is provided between the electromechanical pipeline (1) and the fastening clip (7), and the rubber pad is used to increase the friction between the electromechanical pipeline (1) and the fastening clip (7), thereby improving the stability of the fastening clip (7) when clamping.

5. The wall-mounted load-bearing bracket according to claim 1, characterized in that: The two ends of the supporting base (2) and the two ends of the horizontal crossbar bracket (6) are respectively fastened to the shear wall via a fixing block 1 (4) and a fixing block 2 (5) using fasteners.

6. A wall-mounted load-bearing bracket according to claim 5, characterized in that: The supporting base (2) and the horizontal crossbar bracket (6) are connected via an inclined brace (11), one end of the inclined brace (11) is fixedly arranged on the two outer sides of the supporting base (2), and the other end of the inclined brace (11) is fixedly arranged on a second fixed block (5); the gravity on the supporting base (2) is transmitted to the shear wall respectively via the first fixed block (4) connected thereto, and the inclined brace (11) connected thereto via the second fixed block (5).

7. The wall-mounted load-bearing bracket according to claim 5, characterized in that: The inclined brace (11) and the shear wall are installed at an angle of 60 degrees, so as to stably fix the supporting base (2) on the shear wall and transmit the gravity to the shear wall.

8. The wall-mounted load-bearing bracket according to claim 1, characterized in that: The upper section of the electromechanical pipeline (1) is clamped on the horizontal crossbar support (6) by a U-shaped steel bar (10) so as to be further stably fixed to the shear wall and transfer the gravity of the electromechanical pipeline (1) to the shear wall.

9. The wall-mounted load-bearing bracket according to claim 7, characterized in that: The U-shaped steel bar (10) comprises a semicircular flat steel, the two ends of which are respectively connected to a flat steel bar, the size of the semicircular flat steel being adapted to the outer arc size of the electromechanical pipeline (1), and being used to clamp electromechanical pipelines (1) of different diameters.

10. The application method of the wall-mounted load-bearing bracket according to any one of claims 1 to 9, characterized in that: The steps include: Step S1: Preparation Step S11: Calculation and material selection: First, perform a stress analysis on the electromechanical pipeline, and then combine the stress analysis on the bracket to calculate the selection of bracket frame channel steel, the selection of crossbeam and cable-stayed beam channel steel, the installation position and cable-stayed angle of the cable-stayed beam, and the size of the rib plate. By adjusting the size of channel steel and steel plates of different specifications, they can adapt to water pipes of different specifications and quantities; Step S12: prefabricate the fixing block 1 4 and the fixing block 2 5 required to fix the electromechanical pipeline 1, and locate the installation positions of the fixing block 1 4 and the fixing block 2 5 corresponding to the electromechanical pipeline 1; Step S2: Install the support base (2) A plurality of parallel frame structures are welded into an integrated supporting base (2), and both ends of the supporting base (2) are fastened to the shear wall via a fixing block (4), and are fixedly arranged horizontally on the shear wall; Step S3: Install the horizontal crossbar support (6) The two ends of the horizontal crossbar bracket (6) are fastened to the shear wall by means of fasteners through the second fixing block (5), and are fixedly arranged horizontally on the shear wall and are located parallel to the upper side of the supporting base (2) to provide auxiliary support force for the electromechanical pipeline 1; Step S4: Install the diagonal brace (11) of the load-bearing bracket The supporting base (2) and the horizontal crossbar bracket (6) are connected via an inclined brace (11), one end of the inclined brace (11) is fixedly arranged on the two outer sides of the supporting base (2), and the other end of the inclined brace (11) is fixedly arranged on the second fixing block (5); the inclined brace (11) is made of galvanized channel steel by welding, and the gravity on the supporting base (2) is transmitted to the shear wall through the first fixing block (4) connected thereto and the inclined brace (11) connected thereto through the second fixing block (5); The position where the supporting base (2) is connected to the diagonal brace (11) is the first fixed force point, which is used to transfer the force on the supporting base (2) to the shear wall through the diagonal brace (11) and the second fixed block (5); The position where the supporting base (2) is fixed to the shear wall through its own steel plate body in the horizontal direction is the second fixed stress point, and the entire load of the electromechanical pipeline (1) on the entire supporting base (2) is borne through the above two stress points; Step S5: Pipeline hanging and fixed installation A plurality of electromechanical pipelines (1) are respectively vertically hoisted by hoisting equipment and passed through a plurality of parallel frame structures of a supporting base (2), and are clamped on the outer wall of the lower section of the electromechanical pipeline (1) by means of a fastening clamp (7). The fastening clamp (7) uses two groups of semicircular pipe clamps, and the two groups of pipe clamps are connected by means of fasteners through clamp side ears (8) at both ends, so that the clamp is set on the outer wall of the lower section of the electromechanical pipeline (1); the electromechanical pipeline (1) is clamped by means of ribs (9) on both sides of the fastening clamp (7). 1) The support rod (3) is erected on the frame structure of the support base (2), and the weight of the electromechanical pipeline (1) is transferred to the support base (2) through the rib plate (9). The two stress points in step S3 can bear the entire load of the electromechanical pipeline (1) on the entire support base (2), thereby optimizing the coordination of the construction between the civil engineering and electromechanical units, while also reducing the probability of safety hazards, improving the construction quality, and solving the problem of uneven stress on the electromechanical pipeline (1) on the floor in the prior art; The upper section of the electromechanical pipeline (1) is set on the horizontal crossbar bracket (6) through a U-shaped steel bar (10) clamp, which can further stably fix the electromechanical pipeline (1) and the shear wall, and further transfer the gravity of the electromechanical pipeline 1 to the shear wall.

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