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Pipeline comprehensive branch suspension frame
In the installation engineering, the sliced racks of various majors such as drainage, HVAC, electrical, and fire protection are integrated together, planning and designing, and integrating into a uniform bracket system, which is conducive to saving costs, accelerating construction progress, improving the progress of construction, improving it The quality of observation and the maximum space saves space. The construction method of pipeline comprehensive bearing frames applied and summarized in the instance appreciation engineering is used for everyone to learn to apply!
There are many technical advantages of comprehensive pipelines for pipelines
The water supply drainage system, air -conditioning water system, air -conditioning wind system, fire -resistant supervisor, and strong and weak bridge can use the same hanging frame to eliminate the complex process of interspersing the installation of mounts and improve work efficiency.
The normal installation method is scattered and crossed. The comprehensive supporting framework method is adopted to replace the neatly and orderly comprehensive mounts instead of the traditional branch frame form. The wiring is clearer, clear, and the perception and quality are greatly improved. Under the premise of meeting the layout of various pipelines, the overall occupation space is effectively controlled.
When designing the tributaries, consider the limit of the maximum stress of all the slices, and the actual force is far less than this, such as the maximum value of the horizontal force at the same time. After loading calculation, the intensity of the comprehensive tributaries is guaranteed, which is more secure and reliable compared to the traditional branch of hanging racks.
The reduction of the rack has reduced the amount of building materials and saved costs. Save resources and reduce the noise and solid waste pollution generated during the processing of on -site processing and material processing.
Learning pipeline comprehensive bracket hanging frame construction process
First of all, deepen all majors such as water drainage, HVAC, electrical, and fire protection are deepened, and tools such as BIM are optimized to optimize the layout to comprehensively arrange each professional pipeline. According to the results of the comprehensive layout of the pipeline, the preliminary plan for the suspension frame is formulated. Calculate the spacing and overload weight according to the scheme, then determine the size of the boom and beam by calculating the results, and then formulate a sliced scheme and large drawing. Finally, the plan and large samples are made, made, and installed according to the plan.
① Combined with the on -site deepening design
② Comprehensive layout of various professional pipelines
③ Determine the spacing and overload calculations
④ Calculate the size and material selection
⑤ Design a comprehensive branch suspension scheme and big picture
⑥ Sliging rack materials preparation and processing
Skill rack installation
⑧ Creation and inspection test of the racks
1 Combined with the on -site deepening design
First of all, clear design and specification requirements, and familiar with the drawings on the spot.
2 Comprehensive layout of various professional pipelines
1. Principles of comprehensive arrangement of engineering pipelines
1) Big tube priority. Due to large cross -section and large diameter pipelines, such as air -conditioning ventilation pipelines, drainage pipes, cooling water pipelines, smoke exhaust pipes, etc. occupy a large space. First arrange in the plane map.
2) Strong and weak electricity. Because weak electric lines such as telecommunications, cable TVs, computer networks, and other building smart lines are disturbed by the electromagnetic field of strong electric lines, the strong electric line and weak electric lines should not be laid in the same cable groove.
3) There is no pressure. Refers to pressure pipes and no pressure pipelines. No pressure pipeline. Such as domestic sewage, feces sewage drainage pipes, rain drainage pipes, condensed water drainage pipes, etc. are depending on gravity drainage. Therefore, the horizontal pipe section must maintain a certain degree of slope, which is necessary and sufficient condition for smooth drainage. Therefore, when crossing the pressure pipeline, there should be a pipeline to avoid.
4) Electric avoiding heat and water. The electrical lines should not be arranged above the hot water pipe, the above of the steam pipeline, and the vertical below of the water pipe.
2. Consider the characteristics of each professional
1) The key to the construction technology of the comprehensive support frame is familiar with the characteristics of various professional pipelines. There are relatively unlimited restrictions on pipelines and bridges. The factors that must be considered should not be affected by other pipelines to ensure that the slope is reasonable and the drainage is smooth.
2) Consider the height of the setting of insulation and thermal insulation pads.
3) The air duct is the largest space occupation. You can consider setting up a two -layer mount to the high duct rack high on the sideline. In this way, there can be room for the pipeline under the air duct.
4) Understand the requirements of the racks of the professional pipelines, and determine the reasonable sliced frame layout spacing, form, material and specification models.
5) Consider the construction of ceiling keels decorated, especially the setting of the main keel, which clarifies its layout location and height size.
3. Clarify the comprehensive layout of the bearing frame, use the computer to draw a preliminary construction layout diagram to clarify the layout plan.
According to the preliminary determination of the feasibility of the on -site verification plan, according to the specific wall settings, the distribution of the top beam board, combined with the location of the coil, fan and other equipment, make the plan to determine the form, material, model, model, model, and model The specifications, finally the solution is practical and feasible.
3 Determine the spacing and overload calculations
1. Calculation spacing of the pipe rack
The calculation spacing of the pipe rack can be set to 1.5 meters, 3.0 meters, and 6.0 meters.
2. overload calculation
1) Equipment, air duct, cable bridge, and various pipelines
Equipment and air duct self -weight refer to the equipment for the factory qualification certificate and the specific data of the inspection report; the cable bridge frame is calculated by reference to the “hardware manual”; various types of steel pipelines are self -respect, and the pipe diameter DN15 ～ DN150 shall be based on national standards For ordinary steel pipes, DN200 ～ DN500 is calculated according to the minimum thick tube of the “Seamless Steel Pipe for Transfer of the Transportation of fluids”. The plastic pipeline is self -weight, and the pipe diameter is 20mm to 315mm. The pipe weight of the pipe weight of the “hard polyethyl chloride pipe for water” is calculated.
2) Install overload calculation
The device is calculated according to the load load; the air duct is calculated according to the self -weight of the air duct; the cable bridge is calculated based on the weight of the load cable and the sum of the bridge self -weight.
(1) Insulation pipeline: Calculate according to the pipeline self -weight, full pipe water weight, 60mm thick insulation layer, and 10%of the additional weight calculation. The capacity of thermal insulation material is calculated according to 100kg/m³ of rock wool.
(2) No insulation pipeline: Calculate the additional weight of the pipeline self -weight, full pipe water weight and the above two items within the distance between the design pipe rack.
(3) The distance between the distance between the various pipelines is included in the valve weight (the bending pipe holding tube includes the weight of the valve). When there is a valve in the pipe rack, enhanced measures should be taken in the valve section.
(4) The computing weight of the pipe rack is calculated by 10kg less than 10kg, and more than 10kg of more than 10kg is made of 10kg, such as 24.3 to 30kg.
3) Design load
(1) Vertical load
Considering factors such as manufacturing and installation, the standard load of the pipeline spacing is multiplied by the load sub -item coefficient of 1.35.
(2) Horizontal load
Calculated by 0.3 times the vertical load.
(3) Earthquake load
Calculate the earthquake effect according to the earthquake defense intensity ≤8 degrees. Do not consider wind load.
4 Calculate the size and material selection
The boom is calculated by the stretching component by the axis and considers a certain amount of corrosion. The net area of the boom is calculated according to the formula and meets the national standard GB/T17116.3. The maximum use of a rod uses the lottery below.
AN-Board Cross-section area (MM²)
N-boom tension design value (n)
F-steel strength design value (n/mm²)
Maximum load for booms
1) Calculation of beams bending strength
RX, RY-section plastic development coefficient
MX, My- The curved moment (N-MM) of the section of the calculation of the calculation of the X-axis and the Y-axis
WNX, WNY-check-ups facing the X-axis and the net section of the Y-axis resistance (MM³)
2) Calculation of beams of shear resistance
R-shear strength (n/mm²)
The shear force of V-Calculation cross-section along the plane of the abdomen (n)
S-computational shear is above the scrutiny at the face of neutralized shaft (MM³)
IX-Mao section inertia (MM⁴)
TW-abdominal thickness (MM)
FV-steel shear strength design value (n/mm²)
3. Connection calculation
The welding connection and bolt connection are related to the relevant formula of the design specifications of the steel structure, and the length of the weld required and the connection bolt size is calculated.
4. The regulations of the deflection of beam beams and the length of the compression component
The bending beam is not greater than L/200 (L is the span of the bending component, twice the length of the cantilever and the extension of the extension of the cantilever). The permitted length ratio of components should not exceed 120.
5. Material selection requirements
1) If there is no special indication in this design, it is calculated according to weight. Under the conditions of 5.2.3, this design can be used directly. When there is a shockproof requirement, the rubber layer of 3mm of the surrounding pads should be placed at the tube card.
2) The pipeline hanging rack is composed of four parts: the roots of the suspension frame, a biography, a horizontal, and a tube card. It can be combined as needed. At the same time, it should be noted that the diameter of the boom at the root of the hanging rack must be horizontal with the suspension of each suspension frame. The diameter of the rod is the same.
3) This design only considers the strength and deformation of the rack itself. When the pipe diameter is large, the effects of the structural strength of the beam, board, column, steel frame and other structural intensity must be verified by the structural professional designer.
4) The standard parts used in the racks should be produced by professional manufacturers. The steel used for self -made pipe racks should be used in Q235B steel. When making, the drilling can not be cut. The electrode stick is E4300 ～ E4313.
5 Design Comprehensive Sliging Scheme and Large Map
For details, please refer to the following figure (a large sample diagram of the comprehensive sling). The construction can be autonomously adjusted and changed according to different on -site construction conditions and uses.
Six hanging rack materials preparation and processing
1. The rust removal and anticorrosive of steel
After the steel enrollment is accepted by the supervision, the steel is used to remove the steel with an angle rushing machine. After the rust removal is completed, the steel compressor is used to resist the paint paint.
2. Processing and production of the root of the comprehensive tributaries
The roots of the comprehensive mounts are made of [10 tank steel processing, the production method is as follows: oxygen and acetylene cut off the slot steel, and then use oxygen and acetylene to open on one side of the groove steel segment, the opening size is 50mm × 13mm; finally , Polish the processed roots with an angle rushing machine.
3. Welding at the root of the comprehensive bearing
After the root processing is completed, welded it with the original reserved bearing iron, so that they were firmly connected. The upper part of the bearing frame should be flat with the embedded parts, and shall not exceed or below the embedded parts. The thickness of the weld must not be less than 4mm, and the full length is full welding.
4. Antorgiography at the root of the comprehensive tributaries
After the root welding is completed, the welding residue is cleaned up, and the Red Dan rust paint is used to prevent corrosion treatment.
5. Processing of hanging beams
After the root welding of the comprehensive tributary suspension frame is completed, according to the design and construction drawings of the cable bridge, air duct, and water pipe, combined with the actual situation of the construction site; use the sand wheel cutting machine and table diamonds, to ∠40 × 4, ∠50 × 5, ∠63 × 6 corner steel is processed. The support, hanging, and brackets should be uniformly processed and the form is consistent. The corner steel of the bracket, the corner steel of the bracket, and the tube of the slot steel are used to use mechanical drilling to strictly prohibit the punching of electrical welding.
7 hanging rack installation
1. Installation of a boom
Install the boom in the strip hole of the root.
2. Installation of the hanging beam
The hanging beams of various uses are installed on different elevations according to the requirements of the design plan. The corner steel and slot steel used in support, hanging, and brackets should be consistent.
8 correction and inspection test of 8 suspension frames
1. Correction of a comprehensive tributaries
After the installation of the comprehensive bearing rack in each area is completed, the standards and latitude instruments are used to correct and flatten the boom and hanging beam of the comprehensive bracket.
2. overload test
The load -bearing is suspended on the bearing frame, and the load is twice the equipment, air duct, cable bridge, various pipelines and sliced frames, and the total coexistence of the load of the load. The suspension time is 12 hours. The test results should be embedded with firm parts, tight welding at the root of the suspension, and the unlicensed suspension frames are qualified.
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F-steel strength design value (n/mm²)