Who can give me a simpler construction scheme? (practical work)

Brother, be specific about what you want! Installation scheme of scaffolding and facilities in sales department. Compilation basis 1, construction drawing of sales department of wanda plaza Kaifu, Changsha 2, construction safety inspection standard (JGJ59-99)3, technical specification for the use of construction machinery JGJ33-20054, relevant laws, regulations and local regulations 5. Technical specification for safety of working at heights in building construction (JGJ80) Technical specification for safety of fastener-type steel pipe scaffold in building construction (JGJG 130-200 1) 7. Load specification for building structures (GB50009-200 1)8. Building construction manual fourth edition II. Project Overview Changsha Kaifu wanda plaza is located in Changsha City, Hunan Province, with Fuqing Street in the east and Fuqing Street in the west. It is divided into four areas: A, B, C and D, with a total construction area of about 6.5438+0.005 million square meters, including 800,000 square meters above ground and 205,000 square meters underground. There are two floors underground, 48 floors above ground, and the building height is nearly 170 meters. The sales department project is a three-story steel structure project with a building height of17.4m. In order to facilitate the construction of the external wall of the sales department and ensure the safety of the construction personnel, it is planned to erect floor-standing double-row scaffolding on the outside of the sales department to the top floor. Through the investigation of the construction site, it is found that only after the upper layer of backfill soil outside the sales department is treated can the long skids be placed, and the vertical pole foundation of the floor-standing double-row scaffold in the sales department is located on the long skids. III. Construction preparation 1, technical preparation (1) Project construction management personnel and labor service team construction management personnel must be familiar with construction drawings and special construction schemes, and scaffold erection should be carried out in strict accordance with design requirements and current national safety standards. (2) The builder shall organize operators to make detailed technical disclosure and safety disclosure for this sub-project, and make clear the key points, difficulties and matters needing attention in the construction process, operation methods, defect treatment and safety precautions, etc. , and let each operator who accepts the disclosure sign for confirmation. 2. Preparation of machines and tools (materials): Standard steel pipes with a thickness of 3.5mm and a diameter of 48mm shall be adopted, and the quality of materials shall be strictly checked when entering the site. Site construction is strictly prohibited if the wall thickness is not enough. Fasteners are standard fasteners of 1kg/ piece, and cross fasteners, rotary fasteners and direct fasteners are reasonably matched. Cushion: 40mm thick wooden springboard can be used for the whole length setting, or wooden boards with an area of not less than 0. 15㎡ and a thickness of not less than 30mm can be used for paving. Federated eye network: The newly purchased green safety net should be used, and the federated eye network with damaged, sundries or inconsistent colors is strictly prohibited for the facade protection of the outer frame. Safety bag net: the safety bag net used in the lower layer of the working face must be able to withstand the high impact load of 100kg weight 100 m, with complete appearance and quality assurance certificate. After entering the site, an impact test shall be conducted and reported to the supervision owner for approval before it can be put into use. Bamboo springboard, bamboo glue board, wooden board, etc. Other machine materials, such as cutting machine, iron wire, binding wire, wrench, tool kit and "three treasures" for operators' safety, should be reasonably configured. 3. Manpower preparation: the labor service company must be equipped with a professional scaffolding team for scaffolding, requiring skilled operation, certificates, admission education and complete safety technical disclosure. The number of scaffolder shall not be less than 10 to meet the requirements of site construction. At the same time, provide a sufficient number of general workers to carry out auxiliary work such as material transfer and cleaning. Four. Erection method: this sales department project adopts floor-standing double-row scaffolding for erection. 1. Erection scope of floor-standing double-row scaffolding: floor-standing double-row scaffolding from the existing ground to the roof elevation, around the building sideline of the whole sales department1.2m.. The erection scheme of floor-standing double-row scaffolding is as follows: 2. The terrain around the sales department is flat. Because the sales department building is surrounded by backfill soil and construction waste, the floor-standing scaffold foundation cannot be directly located on it. The treatment method adopted is to level the backfill soil within 2 meters of the outer edge of the building with an excavator and roll it back and forth to achieve sufficient flatness, strength and stability. 3. Setting of stow-wood: On the premise that the ground around the sales department is flat and qualified, two rows of stow-wood are set at 300mm and 1200mm outside the building to ensure its overall flatness. 4. Positioning of the vertical pole: The vertical pole must be located on the skids with a length of1300mm in two rows outside the building. The first row of poles is 300mm away from the building facade, and the second row of poles is 900mm away from the first row of poles. The horizontal spacing of vertical poles is 1.2m, and the step distance is1.8m. The vertical joints of vertical poles are butt joints, and the joint positions are staggered by 50%. 5. Setting of sweeping poles and horizontal poles: Sweeping poles are set vertically and horizontally 200mm from the ground, and then a row of horizontal poles are set up every 900mm upwards, and a horizontal pole should be added at the upper and outer sides of the working surface. 6. Small bar setting: the bar is set above the bar and located at the intersection of the bar and the bar. It is advisable to extend a fist from both sides of the horizontal bar, and the length of the outside must be the same. 7. Before putting into use, the sweeping poles, vertical poles, horizontal poles and cross bars used in this project must be painted yellow on the surface of steel pipes; Before putting into use, the steel pipes used for support must be painted with red and white stripes, with a spacing of 5008. Scissors setting: Two sets of scissors are set from the first vertical pole at the corner, each set from both ends of the facade, and the scissors are set continuously from bottom to top. The clear distance between the intermediate bracing should not be greater than 15m, the diagonal angle of the bracing steel pipe is 60, and the lap length of the joint is 65438+. Schematic diagram of scissors bridging: 9. Connecting rod arrangement: In order to enhance the lateral stiffness and stability of the scaffold, connecting rods are arranged between buildings on the outer scaffold. In this project, at the position of the first row of sweeping poles, each steel column is provided with a wall connector, which leads from the longitudinal sweeping poles and is reinforced by locking the steel columns with short steel pipes. When the height of double bent frame is more than 6m, it is necessary to set up wall connecting pieces, one every 6m vertically and horizontally, and in principle, it shall not exceed two steps and three spans. According to the actual situation of the construction site of this project, steel columns or steel beams can be locked on the wall connectors, as shown in the following schematic diagram: (1) By locking the structural steel columns with the small bars on the external scaffold columns, the external scaffold is connected and reinforced with the structural main body; (2) The structural steel column is locked with the small cross bar on the external scaffold column, so that the external scaffold is connected with the structural main body for reinforcement: the connectors are arranged at the joint of the column and the horizontal bar as far as possible, perpendicular to the scaffold frame. 10. safety net: a safety net should be hung on the outside of the scaffold, and the lower opening of the net should be firmly tied to the column or building. The distance between the fixed points should not be greater than 50cm, and the lower edge should be provided with baseboards. The upper and lower nets should be closely spliced. 1 1. Pedals: 15 thick wood plywood, painted yellow and black (150) on the outside, with a width of 180, one every three steps, and set inside the column and outside the safety net. 12. Scaffolding: The scaffold is made of bamboo springboard, bamboo veneer or wooden board, with a width of 0.3m, and the operation floor is required to be closed in two steps. After the scaffold is laid, it is required to tie and fix it with 16# iron wire with the main rail. In addition to laying a layer of scaffolding, the bottom layer of scaffolding needs to be covered with old wooden Fang and fixed with φ 14 steel bars. 13. Horizontal pocket net: The horizontal safety pocket net is required to be closed layer by layer at the floor position, and must be fully hung within 300mm from the building. The bag net is white, and the main bars on both sides are tied tightly. 14, horizontal hard protection: every 10m, a horizontal hard protection is set on the outer frame, and bamboo springboard or wooden board is fully paved and tied. 15. Schematic diagram of scaffolding effect outside the building: V. Precautions for scaffolding 1. Scaffolding must be carried out in strict accordance with the construction plan and the current national scaffolding norms. 2, scaffolding must be carried out by professional scaffolder, scaffolder should hold relevant certificates, witness the corresponding. 3. Scaffolds shall be erected in strict accordance with the erection sequence, and shall be tied with the structure or temporarily jacked in time to ensure the safety of the erection process. 4, all kinds of fasteners must be tightened (the tightening degree should be appropriate), deformed bars and unqualified fasteners (with long and loose fasteners, etc.). ) cannot be used. 5. Installation workers must wear safety helmets and wear safety belts, which should be hung high and used low. 6, the erection process should always pay attention to correct the verticality and deviation of the bar, to avoid excessive deviation. 7, unfinished scaffolding, at the end of the day, be sure to ensure the stability of the shelf, so as to avoid accidents. 8, scaffolding, bamboo springboard binding, lap conform to the requirements of the specification. Intransitive verb Precautions for Scaffolding 1. After the scaffold erection is completed and the team self-inspection is qualified, it shall be reported to the construction unit, supervision unit and construction unit for inspection, and it can be put into use only after it is qualified. 2, the main structure construction, it is forbidden to internal full frame, structural side brace and scaffolding connection. 3, decoration construction process, scaffolding even the wall pole need to shift, must be approved by the project department by a professional scaffolder after operation, must be removed before adding even the wall pole, and ensure the close connection rear can dismantle, should be restored in time after dismantling. 4. The dense mesh safety net dismantled during construction shall be restored in time. 5. Workers operating on scaffolding must wear safety helmets and wear safety belts. Seat belts should be hung high and used low. 6. Before turning and moving the bamboo springboard and scaffolding on the outer frame, the garbage and sundries on the bamboo springboard and scaffolding should be removed in time. 7. Workers should pay attention to prevent scratches on tools, materials and concrete fragments when operating on an outer frame. Thrown from under and outside the scaffold. 8. Professional scaffolder and safety officer should conduct regular inspection during the use of scaffolding. It is forbidden to put people and things on the shelves when potential safety hazards are found, and timely rectification is in place. Seven. Precautions for scaffold removal 1. Scaffolding should be dismantled immediately after use, and safety inspection should be carried out before dismantling to confirm that there is no potential safety hazard. If there are hidden dangers that affect the safety of the dismantled scaffold, the scaffold should be trimmed and reinforced first to ensure that no danger occurs during the dismantling process. 2. When dismantling scaffolding, the garbage and sundries on scaffolding and bamboo springboard (or bamboo basketry board) should be removed first. It is forbidden to throw them down at high altitude when removing them. Large pieces are transported into the container by vertical transportation equipment, and can be transported into the container by broom. 3. Before dismantling scaffolding, the scope, quantity, time, sequence and method of dismantling, the number of vertical transportation equipment for objects, the methods and conditions of horizontal transportation on scaffolding, personnel organization, command and communication, safety measures and warning areas for dismantling should be made clear. 4. In strict accordance with the demolition sequence, from top to bottom, those who build it will be demolished first, and those who build it first will be demolished later. The demolition sequence of the same part is: railing → scaffolding → bracing → main rail → small rail → column. 5. Generally, when the external scaffold is dismantled, it is forbidden to work simultaneously in the vertical direction, and other vertical operations need to be arranged in advance. 6. When dismantling scaffolding, the lower entrance must be stopped. In addition to this, the guardian should pay special attention to it, and obvious stop signs and fences should be set at the entrance, and this device must be set inside and outside. 7. Around the dismantled scaffold, a sign of "No Entry" should be set in the falling range, and a special person should be assigned to supervise it to ensure that no other personnel will enter when dismantling the scaffold. 8. The vertical transportation equipment used for dismantling scaffolding should be transported by pulleys and ropes or by tower cranes. Littering is strictly prohibited, and the operators and users shall be disclosed, with clear contact terms and methods and clear responsibilities, so as to ensure the safe operation of vertical transportation equipment when dismantling scaffolding. 9. After removed scaffold steel pipes, fasteners and other materials are transported to the ground, they should be cleaned up in time, and those that are qualified, need to be reused after renovation and should be scrapped should be distinguished, and neatly stacked according to specifications. Qualified parts should be maintained in time and then sent to the warehouse for standby. 10, when the scaffolding of this project is dismantled, the operation should be stopped in windy, heavy rain and foggy days. 1 1. When dismantling, operators should wear safety helmets, fasten safety belts, wear non-slip shoes with soft soles and tie their legs. 12, scaffolding demolition must be carried out by a professional scaffolder, and detailed safety technical disclosure shall be made before the demolition operation.