The processing form of steel bars and the joint form of steel bars should be determined.

(1) Processing of steel bars: rust removal, straightening, cutting, and bending forming methods of steel bars;

(2) Connection of steel bars: technical points and quality requirements for welding, binding and mechanical connection;

(3) Transportation of steel bars: horizontal and vertical transportation scheme of steel bars;

(4) Installation of steel bars: special parts (tensive parts of the steel bars at beam and column joints, intersections with large embedded parts, etc.) steel bar installation plan.

4. Concrete Engineering

(1) Selection of concrete mixing machinery: Selection of mixer model; calculation of mixer quantity.

(2) Concrete preparation: concrete ingredients requirements; mixing system.

(3) Concrete transportation and transportation: selection and quantity calculation of mixing transport trucks and concrete pumps; construction requirements for concrete mixing transport trucks, concrete pump transportation and pumping concrete.

(4) Concrete pouring: pouring order; pouring requirements; selection and vibration method of concrete vibration machinery; construction joint retention and treatment method.

(5) Concrete curing: maintenance method; maintenance time; maintenance requirements.

5. Scaffolding Engineering

(1) Scaffolding selection (including frames for structural construction and decoration engineering construction);

(2) Determine the design size of the scaffolding;

(3) Methods for setting up scaffolding and safety nets;

(4) Safety technology for scaffolding construction.

6. Masonry Project

(1) The method and quality requirements for building brick walls, block walls and combined walls;

(2) Control requirements for elastic lines and leather number rods.

3.5 Roofing Project Construction Plan

1. Explain the materials used in the roofing project, determine the construction sequence, and clarify the drainage slope requirements;

2. Key points of construction of roof leveling;

3. Materials and construction requirements of roof insulation layer;

4. Methods for laying or construction of roof waterproof materials, overlapping methods for roll waterproof materials, special parts (deformed joints, eaves, water droplets, protruding roof pipes, exhaust holes, upper manholes, horizontal entrances and exits, etc.) waterproof nodes and construction points;

5. Key points and treatment methods for the separation joints of roof protective layer (rigid waterproof layer).

3.6 Decorative project construction plan

1. Ground project: Explain the materials used in the main parts, determine the overall construction procedures, the construction process and construction points of various floor projects.

2. Plastering project: Determine the overall construction procedures, explain the wall materials of each plastering part, and propose corresponding plastering operation points. Construction points of special parts (such as door and window opening plug treatment methods, positive corner protection methods, skirting parts treatment methods, exterior wall window sills, window lintels, awnings, balcony, top pressing and other plastering points).

3. Door and window projects: explain the materials used in doors and windows, determine the overall construction procedures, door and window installation methods (first plug, then plug, etc.) and corresponding measures.

4. Ceiling project: determine the overall construction procedures, key points for the division of ceiling lattice joints (including the layout of lamps, lamp troughs, exhaust ports, fresh air outlets, smoke sensors, automatic spraying, etc.), the treatment methods for ceilings at the junctions of different materials, special parts (such as deformation joints, pipe crossing parts, lamps, exhaust ports, and fresh air outlets), key points for ceiling construction, etc.

5. The partition materials used in the lightweight partition wall project description, determine the overall construction procedures, the construction or installation methods of partition walls of different materials, and the key points of partition wall treatment in special parts (bottom, top, side, door and window openings and other reserved openings, wire trough parts, etc.).

Chapter 4 Construction Progress Plan

The construction progress plan is a coordinated planning and arrangement for the construction sequence, start and end time and mutual connection of various construction processes to achieve the construction period goals set by the project.

4.1 Dividing the construction process

1. The construction process included in the construction progress plan should be a construction construction process that accounts for both the construction period and the working face.

2. The number of construction processes and the thickness of the division depends on the type and needs of the progress plan. The construction process of the unit project construction progress plan must be divided into sub-projects.

3. The division of construction projects should highlight the key points: construction processes with large amounts of labor should be listed separately, and some construction processes with small amounts of labor can be merged into the main construction process; at the same period, the construction processes of the same type of construction can be merged; secondary sporadic construction processes can be merged into one of other projects. For example, if the project volume is too small, it will not be listed (moisture-proof layer, installation of lintels); several projects that are constructed simultaneously or continuously in the same type of construction are merged.

4. The division of the construction process should be combined with the selected construction plan.

5. All construction processes should be arranged roughly in order of construction.

4.2 Calculate the engineering volume

1. The project volume of each construction process should be calculated according to the project volume calculation rules stipulated in the labor quota.

2. The unit of measurement of the project quantity should be consistent with the unit of measurement specified in the labor quota;

3. The calculation of the project volume should be combined with the selected construction methods and safety technical requirements to make the calculation consistent with the actual situation;

4. The calculation of the project volume should be calculated in combination with the construction organization requirements, zoning, segmentation and layered;

5. The combined construction process should calculate the project volume of each construction process separately.

4.3 Determine the amount of labor and the number of mechanical shifts

The labor quota should be applied to determine the labor volume and the mechanical shift volume based on the construction methods and calculated engineering volume of each construction process.

Calculation formula:

Where P - the amount of labor required for each construction process or the number of mechanical shifts;

Q——The quantity of engineering for each construction process;

H——The time quota adopted.

If a construction project consists of several sub-projects or the projects listed in the construction progress plan are inconsistent with the project content in the construction quota, the weighted average time quota can be calculated using the weighted average time quota.

The weighted average time quota is:

4.4 Determine the working days of each construction process

1. Calculate the number of days based on the number of people equipped or the number of mechanical units:

Calculation formula:

Where T - the number of days of operation in each construction process;

b——Daily working shifts (usually one shift system, special ones can use two shift system)

n——The number of workers or machinery units per shift arranged during the construction process; the number of people that the construction unit may arrange should be considered when determining the number of workers.

2. Reverse progress according to construction period requirements

The number of workers or the number of machinery can be determined based on the construction period.

4.5 Prepare initial plan for construction progress plan

1. Determine the main branch projects and organize their flow construction;

2. Cooperate with the main branch projects, arrange other branch projects, and organize their flow construction;

3. When preparing a preliminary plan for the construction progress plan, consider the reasonable construction sequence of each sub-project;

4. Preliminary plan for preparing construction progress plans should strive to ensure continuous construction in the same construction process, especially the leading construction process should be arranged for continuous construction, and other non-direct construction processes should be interspersed, overlapped or parallel operations with the leading construction process as much as possible.

5. The flow construction of each branch project is overlapped according to its construction order and the initial plan for the construction progress plan is arranged.

4.6 Inspection and adjustment of construction progress plan

1. Inspection of construction progress plan

(1) Check whether the total construction period of the initial plan meets the specified construction period;

(2) Check whether the construction sequence and parallel, overlap and technical intermittent of the construction process are reasonable;

(3) Check whether the workers in the leading construction process are continuously constructed, whether the flow and overlap construction are carried out to the maximum extent, and whether other construction processes are in line with the leading construction process;

2. Layout of mixing stations, processing sheds, and material component yards

1) Layout of mixing station

The mixer (station) should be arranged as close to the use location and within the service scope of the lifting equipment. It should be arranged as low as possible in the downwind direction.

When using a tower crane to transport concrete, the mixer should be arranged within the service scope of the tower crane, so that the tower crane's hoisting bucket can be directly unloaded from its discharge port and hooked to lift.

The mixer should have a back-end feeding site; each mortar mixer is 15m2; the mixing station layout should be considered together with the layout of sand and cement warehouses, and the sand yard and cement warehouse should be arranged near the back-end of the mixer. The mixing station should also be equipped with a reservoir.

2) Layout of processing shed

The processing shed can be slightly far away from the building and close to the corresponding material yard and finished product yard;

The steel bar and formwork processing shed should be arranged a little far away around the proposed building, and there will be corresponding material yards and finished products yards. The associated processing sheds should be appropriately concentrated.

For steel bar processing sheds, the prefabricated processing site of components should be as close as possible to the crane service scope to avoid secondary handling. The steel bar processing sheds should be close to the steel bars and their finished product yards. The hoist hangars are 6~12m2/t; the prefabricated site of components should be as close to the installation site as possible.

The formwork processing shed should be selected at a place far away from the fire source. The formwork processing shed should be close to the wood and formwork yard. The wood processing shed should be close to the wood and formwork 0.3 m2/m3, the scaffolding yard (building area/100*1), and fire protection facilities should be arranged nearby. The area of ​​the wood processing shed is: 2m2/person; chainsaw room: 40~80m2.

3) Warehouse and yard layout

The area of ​​the warehouse and yard should be determined by calculation.

The location of the warehouse should be determined based on the performance of the storage materials and the warehouse usage function. Generally, the warehouse should be selected as much as possible in places with higher terrain, better drainage around the surrounding area, and more convenient transportation. The cement warehouse should be 0.124 t/m2 close to the mixing station. The layout of the yard of materials and components should be shortened as much as possible to avoid secondary transport. Sand should be 0.249 m3/m2 close to the mixing station, and the bricks and component yards should be arranged as close to the vertical transportation machinery as possible. Formwork and scaffolding yards should be arranged where loading, unloading, picking, sorting and conveniently arranged and close to the road. Wood, steel bars, and water and electricity equipment warehouses (building area/100*0.2) should be arranged in conjunction with the processing shed. The tool library is arranged near the worker's work area, with a peak number of people *0.2.

Formwork and scaffolding yards should be arranged in places that are easy to load, unload, use, and are arranged close to the road.

Wood, steel bars, and water and electricity equipment warehouses should be arranged in conjunction with processing sheds.

The tool library is arranged near the worker's work area. Flammable goods warehouses should meet fire protection requirements. Fire protection facilities should be arranged nearby and away from the fire source. A fire protection distance of no less than 4m is left between each shed; flammable and explosive warehouses and insulation board yards should be installed during decoration.
To be continued...