MINISTRY OF EDUCATION AND TRAINING HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY AND EDUCATION GRADUATION THESIS CIVIL ENGINEERING CAPTONE PROJECT LECTURER: NGUYEN MINH DUC STUDENTS: BUI QUANG TUONG SKL 010787 Ho Chi Minh City, May 2023 HCMC UNIVERSITY OF TECHNOLOGY AND EDUCATION Faculty for High Quality Training Civil Engineering ----- ----- CAPTONE PROJECT GVHD: NGUYEN MINH DUC SVTH: BUI QUANG TUONG ID: 19149049 Ho Chi Minh City, 23 May 20223 CHAPTER 1. ARCHITECH OF CONSTRUCTION I. General: Name of project: Hoang Dieu apartment. Hoang Dieu apartment during on Quang Trung apartment in Vinh city is constructed in 1976 and complicated in 1982.
Due to being built for a long time, the current state of the apartment is quite serious, threatening the lives of residents in the area. Facing that situation, Quang Trung apartment complex has been approved for renovation and construction. Construction Site: Quang Trung Nghe An Apartment is located in Quang Trung Ward, Vinh City, Nghe An. The renovation project of Zone A is invested by Nghe An Oil and Gas Construction Company, Zone B is invested by Nghe An Green Garden Real Estate Joint Stock Company and Hanoi Housing Investment and Development Joint Stock Company No.
30 is the investor construction of zone C. The project is built on an area of 39,174 m2 with a total construction investment of VND 1,534 billion. Area B of Quang Trung apartment has a total area of 30 960 m2. The apartment consists of basement, ground floor, mezzanine and 19 floors.
Particularly, Block 1B is arranged on each floor with 05 apartments to serve residents, depending on the needs of the owner. Architechtural method: The apartment consists of 2 basements, 20 floors, 1 roof; this is a complete-scale architectural work designed to serve the residents of the old Quang Trung apartment complex. Ground size 34m x 38m, with a symmetrical rectangular shape, two central arranged ladder cores combined with the middle corridor. The most important function of the building is to organize living and living space for 2 residents.
Incorporating accompanying service public spaces for residential areas such as socialization spaces, play spaces and accompanying services. Standing traffic system: The vertical transportation system of the project includes: 3 elevators located in the center of the building; 2 stairs on both sides of the building and running along the height of the building. Stepped system, and accessible access at the groud floor to the 1st floor floor. The elevator system is designed to be comfortable, convenient and suitable for the needs of construction use.
Design 2 emergency stairs to meet fire protection requirements of high-rise buildings specified in TCXDVN 6160 – 1996: In the building, there must be at least 2 emergency exits so that people can escape safely when there is a fire and create conditions for firefighting forces to easily operate. The maximum distance from the door of the furthest room to the nearest emergency exit should not be greater than: 50 m for the room between two ladders or two exits; 25 m for rooms with only one ladder or one exit of the auxiliary house; 40 m for rooms between two ladders or two exits; 25 for rooms with only one ladder or one exit of a public house, dormitory or apartment. Horizontal traffic solutions: The commuter traffic corridor of the apartment floor has a width of 4m running straight along the length of the building connecting the apartments to meet the moving needs of people living in the apartments. 3 The corridor is spacious, easy for transporting supplies as well as evacuating when there is an incident.
Straight corridors with emergency exit stairs make it easy for people to find emergency exits when there is a fire. Other technical solutions: 3. Ventilation, lighting: Designed according to artificial lighting standards in civil works. The building has windows around it, so natural light is shone into the rooms.
On the other hand, the building has a cascading well that takes light from the top of the house, creating a feeling of natural light for people living in apartments. In addition, artificial lighting is also arranged so that it can cover all the points that need to be illuminated. The ventilation system of the floors is artificially designed by the central air conditioning system at the technical floors. On all floors, there are naturally ventilated windows.
In addition, the project also has floor gaps to create more ventilation for the building. Air conditioning systems are provided for all floors. Ventilation throat along the stairs, elevator hall. Use exhaust fans to vent the toilet areas that are directed to the roof.
Electrical system: Power supply system: The 3-phase power source taken from the regional electrical cabinet is fed into the electrical engineering room to distribute to the floors and then distribute to the rooms. In addition, the building is also equipped with a backup generator located in the basement (with a transformer to avoid noise and vibration affecting daily life) when a power failure occurs, it will automatically supply power to the elevator, common corridor, fire protection system and protection. The entire power line is underground (installed simultaneously with construction). The main power supply system comes in a technical box threaded in the electrical gene and placed underground in walls and floors, ensuring no passage through wet areas and facilitating when repairs are needed.
On each floor, a safe electrical system is installed: 4 automatic power shutoff system from 1A to 80A is arranged by floor and by area (ensuring fire safety). Information and signal system: Designed underground in the wall, using coaxial cable with a signal splitter for rooms including: TV signal, telephone, Internet. Water supply and drainage system: Water supply system: Water is taken from the city's water supply system through a flow meter into the building's underground tank and roof water tank. The building's water will be supplied mainly from the roof water tank, in case the water from the supply system is insufficient, it will be pumped from the underground water tank to replenish.
The piping system is underground in floors, in walls and technical boxes. The water pumping system for the project is designed to be fully automatic to ensure that the water in the roof water tank system is always enough to supply for daily life. Drainage – ventilation system: the drainage system is designed with two lines. A dirty drainage line directly to the area drainage system, a toilet drain pipe is directed into the treatment septic tank and then leads to the area drainage system.
Rainwater on the roof will drain through the water collection holes that flow into stormwater drainage pipes with a 𝜙140𝑚𝑚 downward diameter. Fire projection: Fire alarm systems are installed in each apartment. The fire extinguishers are fully equipped and arranged in the corridors, stairs. under the guidance of the State Fire Protection Board.
Arrange the fire extinguishing system including fire hydrants in the aisles, halls. with the maximum distance in accordance with TCVN 2622 – 1995. As well as an automatic fire extinguishing system when a marine sensor detects overheating in each apartment. The building with 2 stairs, with dimensions to ensure the evacuation when a fire occurs.
Lightning projection system: Equipped with lightning protection system in accordance with the requirements and 5 standards of lightning protection of high-rise buildings (Designed according to TCVN 46 – 2007). Wastewater treatment system: Garbage is collected on the floors through garbage containers arranged on the floors, every day there will be cleaning workers to collect garbage and there will be a department to take the garbage out. The garbage booth is designed discreetly and carefully treated to avoid odors that pollute the environment. There will be garbage collection rooms in the center of the floors to facilitate garbage collection.
All wastewater is piped into the treatment tunnel to be located in the tunnel, the wastewater will be deposited and treated before being discharged. Communication system, technology in the building: The building will be installed with internet cable system, television cable in the form of centralization distributed to each apartment. Security systems include: CCTV systems along corridors, elevators, entrances. Access control systems, public sound systems, fire protection systems, intercom radio systems.
Building technology system includes: application technology for energy management control, central ventilation and air conditioning systems, pumping and drainage systems,. Building technology system includes: application technology for energy management control, central ventilation and air conditioning systems, pumping and drainage systems,. Supply of material: The construction works are in Nghe An, so the supply of materials must be suitable for moving conditions. Materials are delivered to the construction site according to construction requirements and stored in temporary warehouses.
Construction machinery and equipment: 6 Means for construction from the ground floor and above include: Tower crane: transports materials within a radius of use. Hoist: transports people and materials upward. Mixer: mix concrete and plastered mortar. Concrete pump: pump concrete horizontally and building height.
Electronic full-station machine: column heart positioning, walls. Mercury machine: measure high difference. Concrete awl dressing. Machine for welding, cutting, pulling steel.
And some equipment and means for construction such as scaffolding system, formwork, struts, covering nets. Labor resources: In addition to the main source of labor available in construction teams, when the project needs manpower, workers can be hired from outside. The selection of workers for the construction of works must ensure sufficient qualifications and skills. In addition, workers must be trained in site safety.
Ability to supply electricity, water: Water supply capacity: The water used in the construction site is designed from the water supply system, stored in water tanks and pumped to high floors when constructed. Therefore, it is necessary to ensure the necessary flow throughout the construction process. Power supply capacity: The project is located near the traffic main axis, with a 3-phase electrical system that will connect to the electrical infrastructure of the construction site. In addition, during construction, use an additional backup generator to ensure safety and continuity for the construction site.
7 CHAPTER 2: MATERIAL AND PRELIMINARY SIZE OF CONSTRUCTION I. Type of material: 1. Concrete: The project uses concrete of durable grade B30: Calculated compressive strength: 𝑅𝑏 = 17 𝑀𝑃𝑎 Calculated tensile strength: 𝑅𝑏𝑡 = 1.5 × 103 𝑀𝑃𝑎 Coefficient of working conditions: 𝛾𝑏 = 1 1. Reinforcement: Works using plain steel CB300 – T với 6 ≤ 𝜙 ≤ 40 and ribbed steel CB400 – V với 6 ≤ 𝜙 ≤ 50 • Ribbed steel CB400 – V, with 6 ≤ 𝜙 ≤ 50 Calculated tensile strength: 𝑅𝑠 = 350 𝑀𝑃𝑎 Calculated compressive strength: 𝑅𝑠𝑐 = 350 𝑀𝑃𝑎 Calculated tensile strength (stifrup, oblique): 𝑅𝑠𝑤 = 280 𝑀𝑃𝑎 Elastic modulus of steel: 𝐸𝑠 = 2.0 × 105 𝑀𝑃𝑎 Coefficient of working conditions: 𝛾𝑠 = 1 • Steel bars CB300 – V, with 𝜙 ≥ 10 Calculated tensile strength: 𝑅𝑠 = 260 𝑀𝑃𝑎 Calculated compressive strength: 𝑅𝑠𝑐 = 260 𝑀𝑃𝑎 Calculated tensile strength (reinforcement, oblique): 𝑅𝑠𝑤 = 210 𝑀𝑃𝑎 Elastic modulus of steel: 𝐸𝑠 = 2.0 × 105 𝑀𝑃𝑎 Coefficient of working conditions: 𝛾𝑠 = 1 1.
Calculating values 𝝃𝑹 , 𝜶𝑹 : Follow TCVN 5574 – 2018, entry 8.3, value 𝜉𝑅 is determined by the formula: 8 𝑥𝑅 0.8 𝜉𝑅 = = ℎ0 1 + 𝜀𝑠,𝑒𝑙 𝜀𝑏2 Where: 𝜀𝑠,𝑒𝑙 : is the relative deformation of tensile reinforcement when the stress is equal𝑅𝑠 𝑅𝑠 𝜀𝑠,𝑒𝑙 = 𝐸𝑠 𝜀𝑏2 : is the relative deformation of compressed concrete when the stress is equal to𝑅𝑏 , Follow the directions in Table 9 and the section 6.2 TCVN 5574 – 2018 • Concrete B30 steel CB400 – V: 𝑅𝑠 350 𝜀𝑠,𝑒𝑙 = = = 1.474 • Concrete B30 steel CB300 – V: 𝑅𝑠 260 𝜀𝑠,𝑒𝑙 = = = 1. Preliminary size of construction: 2. Preliminary size of slab: Choose the largest sized floor cell to calculate the floor thickness:8.5𝑚 𝐷 ℎ𝑠 = ×𝑙 𝑚 9 Where: 𝐷: depends on the load on the large or small floor (0.