Design specification for hoisting of single storey industrial plant structure

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The preparations before hoisting are as follows:

The preparation work before the hoisting of the components includes cleaning up the site, paving the road, preparing the foundation, transporting, stacking and assembling and reinforcing the components, inspecting, cleaning, elastic line, numbering and the installation of lifting and hoisting machinery. Whether the preparation work is sufficient will directly affect the construction progress, installation quality, safe production and civilized construction of the entire structural installation project.

Hoisting requirements:

The rolling method used in soil construction to load and unload mobile equipment, the thickness of the roller bar should be consistent, and the annual width should be 50cm longer than the width of the supporting row, and it is strictly forbidden to fill the roller bar with gloves. When loading and unloading the truck, the slope of the piping shall not be greater than 20 °, the erection of the raceway should be smooth and solid, the joints should be staggered, the speed of rolling should not be too fast, and the rope should be used if necessary.

During the installation process, if problems are found, measures should be taken in time to deal with them before continuing to lift.

When hoisting large-scale tower equipment with a lever, a plurality of winches are operated jointly, and the winch speed of each winch must be approximately the same, so as to ensure that the force of each lifting point on the tower body tends to be roughly uniform, so as to avoid uneven stress and deformation of the tower body.

When using the rotary method or the knockdown method to hoist the tower tank, the hinge wrist installed at the bottom of the tower body must have the ability to resist the horizontal thrust generated in the lifting process, the left and right slip ropes of the tower body must be firm in the lifting process, and when the tower body rotates in place at the height, make it slowly fall into the foundation, avoid accidents and deformation.

When installing equipment on a frame or on a building, its strength and stability should meet the requirements of the installation conditions. After the equipment is installed and positioned, it should be connected and fastened or welded according to the requirements of the drawing, and the strength and stability required by the design can be decoupled only after it has been satisfied, otherwise it must be temporarily fixed.

The above content refers to Encyclopedia - Hoisting.

Preparation before hoisting.

Structural pre-installation preparations include site clearance.

Single-storey industrial plant structure hoisting:The structural installation components of the prefabricated single-storey industrial plant include columns, crane beams, foundation beams, connecting beams, roof trusses, skylight frames, roof panels and supports. The hoisting process of the component includes binding, lifting, alignment, temporary fixing, correction, final fixing and other processes.

The layered segmented flow hoisting method is to divide the multi-storey house into a number of construction layers, and each construction layer is divided into a number of installation sections. The crane is installed in the order of columns, beams and plates in each section until all the components of the section are installed, and then transferred to another installation section. After all the components of the first floor are installed and finally fixed, the components of the previous layer are installed.

Answer: Destroy. <>Advantages of single-storey industrial plant structure hoisting:

1. Because the same type of components are hoisted each time, the rigging does not need to be replaced frequently, and the operation method is basically the same, so the hoisting speed is fast and the hoisting efficiency is high;

2. Compared with the comprehensive hoisting method, you can choose a small crane and replace the hoisting boom rod with different types of components to meet the requirements of the lifting capacity and lifting height of different types of components, and give full play to the efficiency of the crane;

3. Component classification and hoisting, can also be divided into batches, component prefabrication, hoisting, transportation organization is convenient; The site layout is relatively simple and the discharge conditions are good;

4. It can provide sufficient time for component correction, joint welding, pouring and curing.

The above content reference: Encyclopedia - sub-piece hoisting method.

Dear, I have received your problem, the solution to the relevant problems is as follows, I hope to help you The design basis for the hoisting of single-layer industrial plants such as key room structure is as follows: from the general situation of the project, it can be seen that the number of components is large and the difference is large, if the comprehensive hoisting law is adopted, the crane type is replaced frequently, and the replacement of blind oak or sling is also very ordinary, resulting in the phenomenon of consuming effort and time. And the sub-piece hoisting method hoisting the components that are not different each time, the rigging does not need to be replaced frequently, the operation method is simple and basically the same, there is a distance time in the middle, and the working surface and time can be supplied for the follow-up work. Based on the above analysis, the construction plan is positioned and hoisted in parts.

The hoisting of columns and wind-resistant columns adopts the rotary method, and the stacking of roof trusses adopts diagonal stacking.

Civil Engineering Construction

Course Design Tasks (Single-storey Industrial Plant Structure Hoisting), Xi'an University of Architecture and Technology, School of Civil Engineering, Construction Teaching and Research Department.

March 2o12.

Book. First, the purpose of the design.

This course is designed for the design of single-storey industrial plant structure hoisting. It is one of the main teaching links of the course "Civil Engineering Construction". Through the design of this course, students will initially master the steps and methods of structural installation engineering design, consolidate the theoretical knowledge learned, and use the knowledge learned to analyze and solve the problems in the structural hoisting of single-storey industrial plants.

Second, the design content and requirements.

1. Select the crane type and model. 2. Hoisting process of main structural components.

3. Determine the hoisting plan of the plant and start the route of the heavy machine. 4. Two-stage construction plan design: (1) Layout drawing of column and roof truss prefabrication stage; (2) Floor plan of components in the hoisting stage. 5. Design results.

1) The design specification must have the crane type, model, the hoisting process of the components, the reason for the determination of the plant hoisting plan, the analysis and calculation process, the description of the two-stage construction layout, and attach the necessary sketches.

2) One construction plan for each of the two phases (No. 2, scale 1:250). In the second figure, the schematic diagram of the hoisting check of the middle roof panel and the schematic diagram of the second driving route of the crane should be separately represented. 3. Design conditions.

1. Project overview.

This project is a single-layer reinforced concrete prefabricated workshop of a factory, the workshop has a total of three spans (i.e., 12 meters, 18 meters, 24 meters), and its plane position, plant axis size and profile are shown in Figure 1, 2, 3.

2. Technical and economic conditions for construction.

1) Geology: According to the survey report, the soil is a first-class macroporous loess, the bearing capacity of the natural foundation is 15t m2, and the groundwater level is 6 7 meters below the surface;

2) Before hoisting, the foundation has been constructed and backfilled to the meter;

3) The columns and roof should be roof trusses and 12-meter-span two-hinged arch roof trusses, all of which are prefabricated on site; Crane beams, contact beams, foundation beams and prestressed large roof panels are made in the prefabricated component processing plant, transported to the site by car and discharged;

4) The steel skylight beam system is made in two sections in the metal structure factory, transported to the site for assembly and discharge; (5) Appendix 1 of the list of load-bearing components of structural installation projects;

6) the existing and 1252 crawler crane of the construction unit is available, and its working stool performance is shown in Figure 4,5,6 working performance curve; The crane dimensions are shown in Figure 7 and Schedule 2;

1) column foot is 80cm away from the center of the foundation in the prefabricated plan of the column, and the spreader weighs 200kg; (2) The beam weighs 500kg; sunroof frame reinforcement additional weight 500kg; (3) The beak frame can be extended by 3m and weighs 500kg.

Table 1 List of prefabricated components.

Continued from Table I. Table 2 Main dimensions of the fuselage single.

Bits: m.

Summary. Fourth, the selection of the crane and the calculation of the working parameters of the structure hoisting using the truck crane QY16 type, hoisting the main components of the working parameters are: the roof truss using two-point binding hoisting.

Required lifting capacity q=q1+q2=( kn requires lifting height to see figure h=h1+h2+h3+h4=(

1) At the construction site of the plant, the components should be transported to the hoisting site before hoisting, the position of the support pad should be correct, and the position of the lifting point should meet the design requirements during loading and unloading. (2) The site where the components are stacked should be flat and solid. (3) When the components are in place, they should be shelved on the pad key banquet wood or manuscript silver bracket according to the force of the design, and should be kept stable.

3. Structural hoisting method After the old steel roof truss is made in the factory, it is transported to the site for hoisting by car. The roof system includes roof trusses, purlins, and roof panels. The hoisting process of each component is as follows:

Page 2 Lashing Ignition - Lifting - Alignment - Temporary Fixation - Correction - Post-fixation of the most segment macro.

Fourth, the crane refers to the selection of the calculation of the working parameters of the structure hoisting using the truck crane loss friend silver QY16 type, hoisting the main components of the working parameters are: the roof truss using two-point binding hoisting. Required lifting capacity q=q1+q2=(pin banquet kn requires lifting height see figure h=h1+h2+h3+h4=(.)