(insulation thickness 70mm).
Self weight of DN100 galvanized steel pipe: 10.88kg/m (wall thickness 4mm).
(2) BIM based collision detection: the BIM models of buildings, structures, electromechanical systems, etc.
In order to avoid the problem that it is difficult to coordinate among disciplines during construction, BIM (three-dimensional modeling technology) is used for comprehensive arrangement of pipelines of various disciplines, so as to shorten the construction period and efficient construction.
Insulation weight of DN32 galvanized steel pipe: 1.61kg.
Total weight of insulation: 38.86kg.
Dead weight of DN50 galvanized steel pipe: 5.29kg/m (wall thickness: 3.8mm).
According to JB / zq4763-2006 expansion bolt specification table, the allowable tensile force of each M16 expansion bolt anchored on 150# concrete is 12250n.
Pipe weight: dn400 seamless steel pipe weight: 102.59kg/m.
(4) Advantages of BIM Technology in mechanical and electrical pipeline installation serious lack of intuitiveness of drawings in the process of traditional building electrical design, and BIM Technology just makes up for the shortcomings of traditional design drawings, and the contents of drawings are more intuitive, which is its unique advantage and an important reason why it is widely used in building electrical design, and can promote the continuous optimization and improvement of electrical design.
The spacing of the support is set as l = 3.3m.
2.2 role of BIM Technology (1) BIM design visualization according to the CAD design drawings, use Revit and other series of software to create the building, structure and electromechanical BIM models of the project, which can carry out dynamic visual display of the design results, so that the owner and the construction party can intuitively understand the design scheme, test the constructability of the design, and find the existing problems in advance before construction.
Collision detection report (3).
(insulation thickness 60mm).
Self weight of DN250 seamless steel pipe: 45.92kg/m.
created are imported into professional collision detection and construction simulation software through IFC or RVT files to carry out comprehensive collision detection and analysis of structural components and pipelines, and simulate the whole construction process or important links and processes of the project, so as to find problems in design in advance and reduce construction costs Design change and optimization of construction scheme.
Similarly, the vertical bending moment at each point is approximately equal.
(insulation thickness 70mm).
Pipeline insulation weight: centrifugal glass wool with nominal density of 38kg / m3dn400 seamless steel pipe according to gbt17794-2017.
The spacing of the four pipe supports is 2.5m, so the vertical bending moment at each point is T1 = pv1a1 + pv2a2 + pv3a3 + pv4a4-t2t2 = (pv1a1 + pv2a2 + pv3a3 + PV4A) / LT2 = 9353n, T1 = 10707nm = L / 4 × 20060/4=3.1 × The flexural section modulus of 106n / mm10# channel steel is 39.7cm3[ σ]= sixteen point two × 106/39.7 × The horizontal allowable stress of 1000 = 312mpa10# channel steel is 455mpa, meeting the requirements.
5.
Use the BIM model of electromechanical pipelines for engineering deepening design, comprehensively arrange the electromechanical pipelines in the three-dimensional model, and use olive mountain and modeling master software to comprehensively arrange the supports and hangers of the arranged comprehensive pipelines.
The support adopts 10# channel steel and M16 expansion bolt to be anchored on the structural beam and slab of the basement.
Insulation weight of DN80 galvanized steel pipe: 3.31kg.
(wall thickness 7.1mm).
Through BIM Technology , during the comprehensive design of electromechanical pipelines, the designers design and plan the pipeline system according to the architectural design drawings, establish a visual digital model, and comprehensively reflect the internal space status and structure of the building.
(3) Vertical bending moment at each point of the beam.
Self weight of 10# channel steel: 9.98kg/m, weight of pipe: 1667.4kg2 Pipe medium weight: dn400 seamless steel pipe medium: 879.2kgdn300 seamless steel pipe medium: 494.55kgdn250 seamless steel pipe medium: 343.4375kgdn80 galvanized steel pipe medium: 35.168kgdn65 galvanized steel pipe medium: 27.475kgdn50 galvanized steel pipe medium: 13.74kgdn100 galvanized steel pipe medium: 27.475kgdn150 galvanized steel pipe medium: 61.818kgdn150u-pvc pipe medium: 61.818kgdn32 galvanized steel pipe medium: 5.62 Total weight of 6kg pipeline medium: 1780.6kg3.
Comprehensive layout of electromechanical pipelines based on BIM.
Dead weight of DN32 galvanized steel pipe: 3.44kg/m (wall thickness: 3.2mm).
(insulation thickness 50mm).
(insulation thickness 50mm).
vertical load g; 1.
Compared with ordinary residential building projects, the project has complex structure and no standard floor structure.
Key technology 2.1 comprehensive support calculation (1) layout the most unfavorable points in the basement of Jincheng culture and Art Center are two dn400 seamless steel pipes, two DN300 seamless steel pipes, two DN250 seamless steel pipes, two DN80 galvanized steel pipes, one DN65 galvanized steel pipe, two DN50 galvanized steel pipes, one DN100 galvanized steel pipe, one DN150 galvanized steel pipe, two DN32 galvanized steel pipes One de110u-pvc pipe shares a comprehensive support.
With a total construction area of 45818 square meters, the functions of the culture and Art Center project mainly include: Grand Theater (1200 seats), mass art museum, children’s Art Center, underground garage and auxiliary supporting rooms.
Insulation weight of DN300 seamless steel pipe: 10.2kg.
Dead weight of DN80 galvanized steel pipe: 8.38kg/m (wall thickness 4mm).
(wall thickness 10mm).
1.
The designers can complete the design optimization by observing the architectural model..
Meet the requirements.
Project overview Jincheng culture and Art Center construction project is located in the north of Fengtai East Street and the east of Wenhua Road, the main urban area of Jincheng city.
(2) .
2.
Self weight of DN150 galvanized steel pipe: 17.81kg/m (wall thickness 4.5mm).
Insulation weight of DN250 seamless steel pipe: 8.82kg.
Vertical load g = (pipe weight + pipe medium weight + insulation weight) × 1.35=3487 × nine point eight × 1.35 = 46133n, (where: vertical load G is based on page 6 of atlas 03s402, “considering manufacturing and installation factors, the standard load of pipe spacing multiplied by 1.35 load partial factor”); If there are 12 expansion bolts in total, the tensile force of each expansion bolt is 3845n.
(insulation thickness 70mm).
The distribution and installation of power pipelines and power channels are intuitively presented in the model.
Insulation weight: 12.95kg.
(wall thickness 8mm).
4.
Insulation weight of DN50 galvanized steel pipe: 1.97kg.
Self weight of DN300 seamless steel pipe: 62.54kg/m.
Dead weight of DN65 galvanized steel pipe: 7.11kg/m (wall thickness 4mm).
The designed local clearance height of the basement of the project is small, and there are many three-dimensional crossing arrangements of various professional pipelines, including fire hydrant pipelines, sprinkler, deluge and water cannon pipelines, domestic water supply and hot water pipelines, wastewater, sewage and rainwater pipelines, air conditioning water, heating pipelines, air ducts, cable bridges and other pipelines.
It is easy to cause the problems of pipeline crossing and repeated construction with the traditional concept of mechanical and electrical installation of residential buildings.
The electromechanical pipeline of the project is complex and has complete functions.
