Erection of multi-storey industrial building

Contents

Contents

Introduction

Source Data

1. General characteristics of the building under construction

2. Characteristics of used structures

3. Specification of structural elements

4. Joints of mounted structures

5. Determination of labor intensity of installation works

6. Selection of mounting devices and installation of structures

7. Selection of installation crane by technical characteristics

8. Selection and determination of the number of vehicles

9. Organization of storage areas

10. Technical and economic indicators of work performance

11. Safety Technics

12. List of used literature

Introduction

The construction of buildings and structures consists of a number of construction works, which, in turn, are divided into separate processes. At the same time, the construction work is carried out in a certain technological sequence: preparatory work - the work of the underground part, or the so-called "zero cycle," - the construction of the above-ground part - finishing work - the improvement of the territory.

In order to reduce the construction time, these types of work are combined in time, that is, carried out in-line, which allows you to use machines and mechanisms more efficiently, increase labor productivity and reduce the cost of construction.

Installation of building structures is a leading technological process that largely determines the structure of object flows, the overall pace of construction of the facility, the order and methods of other construction work. At the same time, it should be borne in mind that the performance of all types of construction work, including the installation of structures, should be linked into a single technological process - a flow, the final goal of which is to obtain finished products in the form of a building or structure.

The in-line construction method is based on the application of the principles of continuity and uniformity of processes in construction production. To organize in-line production, it is necessary: to divide the common front of construction work (when erecting a building or structure) into separate grips. The grippers are chosen so that the labor intensity of the work on each of them differs by no more than 15... 20%, which ensures approximately the same duration of work on each gripper. Then flows are assigned and their direction is determined, for which whole complex of works on construction of objects is divided into constituent construction processes and each of them is fixed to teams or links, maximally combining execution of these processes on grips in time and space.

In accordance with SNiP 3.01.01 - 85 "Organization of construction production, each construction shall be provided with design documentation for the organization of construction and performance of works. The documentation should be based on best practices and the latest achievements of construction science and technology and should include the implementation of plans to increase the level of labor productivity and mechanization, reduce labor intensity and reduce the cost of work.

These rules stipulate that such documentation shall consist of construction organization projects (PIC) and work execution projects (PWP).

Projects of the construction organization are developed at the stage of the project assignment. PIC for the entire period of construction, for the entire scope of work according to the design assignment, and thereby establish the optimal duration of construction in general, its queues, launch complexes, individual large facilities in connection with the standards of construction duration (SNiP 1.04.03 - 85).

Work execution projects are developed according to the working drawings of the preparatory and main construction periods of buildings and structures or launch complexes. At the same time, decisions taken in the PIC, taking into account local organizational and technical conditions, are laid down as the basis for the PPR.

The work execution projects for the main industrial, housing, civil and agricultural facilities include: the work execution schedule and the network schedule for the facility (in the case of the construction of the complex of facilities - the consolidated schedule and the consolidated network schedule); list, scope and schedule of preparatory works; construction plot plan for various stages of construction (most often for "zero cycle" work and installation of structures of the above-ground part); schedule of receipt of required resources, and during installation from vehicles ("from wheels") - hourly schedules of transport and installation of structures; Job instructions for performance of works, diagrams, justifications and descriptions; Explanatory note reflecting necessary explanations of the project materials, substantiation of decisions and feasibility indicators.

When developing process instructions for the production of individual construction processes, choosing the method of work execution and their complex mechanization, the purpose of the building or structure, its volume-planning and structural characteristics play a decisive role.

General characteristics of the building under construction. [5]

A five-story industrial building in frame and panel design has been designed. The axial dimensions of the building are 60 x 18 m. The volumetric - planning solution is a grid of columns 6 x 6 m. The floor height is 4.8 m. The binding of the extreme columns to the longitudinal laying axes is zero. At the ends of the building, the columns are moved 500 mm. The columns are located in 2 tiers and have a square section of 400 x 400 mm, 400 x 600 mm.

Along the girders lying in the transverse direction, they are laid in the longitudinal direction of the plate, and the floor has a height, including the floor, of 1200 mm. The coating does not differ in design from the slab. The roof is flat with an external drainage.

A staircase is arranged to go from floor to floor. The height of one march is 1800 mm, therefore, between the floors the staircase is 5 marches. The walls are made of railway panels hung on columns. Panels are fixed to columns using steel corners. The transfer panels are mounted on support tables made of steel sheets. Thickness of horizontal seams between panels - 15 mm, and vertical - 20 mm. Seams of panel walls are filled with elastic synthetic gaskets, and outside they are covered with sealing mastic. In the end walls there are two metal gates measuring 2.4 x 4.8 m. The gate openings are bordered by railway frames attached to the columns of the frame by welding embedded parts.

In the longitudinal walls, glazing is arranged for the entire length of the building. Window openings are filled with steel bindings, height 1.2 and 1.8 m, width - 6 m. The facade of the building is made of wall panels 6 m wide and 1.2 and 1.8 m high.

The depth of sealing the columns into the foundation is used equal to 1050 mm, since at the inter-floor floor - the support of the plates on the girder shelves.

2. Characteristics of used structures [5]

2.1. Columns. Columns with square and rectangular sections 400x400 are adopted in this course design. Embedded parts are provided in columns. Since the building is 5 storeys, we accept 3 columns with a height of 9580mm, 11230mm and 2520mm

2.2. Rigele.Girders for a building with floors resting on the shelves of girders have a height of 800. In case of conjugation with the column, the reinforcement outlets of both elements are welded, embedded parts of the crossbar and the column cantilevers are welded with subsequent grouting of the joint

2.3. Slabs. All slabs have a U-shaped section with a height of 400 mm. In the span of the plate there are 3 intermediate transverse ribs with a height of 200 mm. Shelf thickness 50 mm. Main slabs with a width of 1500mm are accepted, as well as good slabs, which are placed only on the outer rows of columns, the width of which is 750 mm. Main inter-column plates are arranged along axes of columns and welded to embedded parts of girders in 4 places. Places of conjugation of 2 plates are frozen.

2.4. Curtain panels. The main height of the panels is 900, 1200 and 1800mm, the thickness of the panels is 300mm, the material is light concrete .

2.5. Stairwell. The stairwell is designed as a separate structure with load-bearing brick walls. Deformation joints are provided between the walls of the staircase and reinforced concrete structures. The thickness of the staircase is 380mm. The stairwell consists of prefabricated reinforced concrete platforms and marches.

Determination of technical and economic indicators of the assembly process. [5]

The technical and economic indicators of the installation process are given as the result of the design decision and, depending on the significance, can be divided into main and auxiliary. Key indicators include:

- Labor intensity for the whole scope of work per person-cm. It is determined by calculation by summation of labor costs, = 653.784 people;

- Labor costs for installation 1t. structures of chelsm/t is determined by dividing the sum of labor costs for installation works by the total weight of structures, = 0.98 hours/t;

- Cost of installation of 1t structures, RUB It is determined by dividing the cost of installation work by the total weight of structures, 1.75 rubles;

- Work execution period, days, according to work schedule 66 days

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