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1. The tic-tac-toe frame is a connecting rod installed on the chassis of the vehicle, due to the shape like"wells", so it is called a tic-tac-toe frame, and its main role is to strengthen the overall rigidity of the frame chassis. usually with anterior and posterior parietal chin; The front and rear bottoms together are known as the Equalizer Pole Five-Piece Set.
2. Gantry.
Mobile lifting gant) is a new type of small lifting gantry developed according to the daily production needs of small and medium-sized factories (companies) to handle equipment, warehouse import and export, lifting and maintenance of heavy equipment and material transportation. It is suitable for manufacturing molds, auto repair shops, mines, civil construction sites and lifting occasions.
3. Tower crane.
Tower crane) is referred to as tower crane, also known as tower crane, which originated in Western Europe. A rotating crane with a boom mounted on the upper part of a towering tower. The working space is large, mainly used for the vertical and horizontal transportation of materials and the installation of building components in housing construction.
It is composed of three parts: metal structure, working mechanism and electrical system.
The metal structure includes the tower body, boom and base, etc. The working mechanism has four parts: lifting, luffing, slewing and walking. The electrical system includes motors, controllers, power distribution cabinets, connecting lines, signals and lighting devices.
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Tower cranes, gantry (Tic-tac-toe) material hoists and external elevators.
1 tower crane.
Tower cranes (referred to as tower cranes) have been widely used in construction and have become indispensable construction machinery in construction and installation.
Because the crane arm of the tower crane and the tower body can be formed into a mutually perpendicular shape, so the crane can be installed close to the construction of the building, the effective working range of the tower crane is superior to the crawler, the tire crane, and its working height can reach 100-160m. The tower crane is superior to other lifting machinery, coupled with its convenient operation and simple luffing characteristics, it is the leading machinery for lifting, transportation and hoisting operations in the construction industry in the future.
2. Gantry, well-shaped material hoist.
Gantry and well-shaped frames are used for vertical transportation of materials in construction. Gantry frame and tic-tac-toe frame are named because of the shape and structure of the frame.
The gantry frame is composed of a ceiling beam and two columns, which are shaped like a door frame; The derrick is composed of rods on four sides, a cross-sectional frame shaped like the word "well", and the hanging basket for lifting the goods runs up and down in the middle of the frame body.
The safety protection devices of gantry and well-shaped material elevator are: docking device, broken rope protection device, hanging basket safety door, floor mouth docking railing, feeding port protective shed, ultra-high limit device, lower limit limiting device, overload limiter and communication device. The installation and dismantling of the gantry and well-shaped material hoist must prepare a special construction plan.
And it should be carried out by a qualified team.
3 External elevators.
The external elevator for building construction, also known as the attached wall lift, is a vertical derrick (column) guide rail external cage elevator. It is mainly used for the construction of industrial and civil high-rise buildings, and the vertical transportation of high-rise materials and personnel for bridges, mines and water towers.
The construction principle of the elevator is to suspend the carrying ladder cage and the counterweight on the fixed pulley at the top of the column with a wire rope, and the column is rigidly connected with the building structure. The ladder cage is driven by electricity, and the ladder cage moves vertically along the column guide rail by virtue of the reaction force of the fixed rack on the column.
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For the structural construction of super high-rise reinforced concrete buildings, attached tower cranes should be preferred for vertical transportation machinery.
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Tower cranes, derricks, construction elevators, truck cranes, etc.
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Vertical transportation machinery in construction mainly includes: various cranes (divided into truck cranes, crawler cranes, tower cranes, mast lifting cranes, etc.); material hoist (elevator, gantry hoisting, etc.); Poor training and demolition of concrete pumps (car pumps, concrete floor pumps, sky pumps, etc.).
When excavating earthworks, it is necessary to prevent subsidence and deformation of adjacent buildings or structures, roads, pipelines, etc. If necessary, it should consult with the design unit or construction unit, take protective measures, and observe the settlement or displacement during construction.
If cultural relics or ancient tombs are found during the construction, they should be properly protected, and should be reported to the relevant local departments in time before the construction can be continued. If permanent markers for surveying or long-term observation points set up by the geological and Zhongzheng departments are found, they should be protected.
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Vertical transportation equipment commonly used in the construction of high-rise buildings includes () and so on.
a.The winch is equipped early;
b.tower cranes;
c.construction of external elevators;
d.concrete pumps; Chiropractic.
Correct answer: Tower Crane Land Field Finger Machine; construction of external elevators; concrete pumps;
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The vertical transportation systems commonly used in the construction of high-rise buildings include: tower cranes, construction elevators, derricks, etc.
1 tower crane.
The tower crane is a highly flexible vertical transportation equipment with a large lifting capacity and working radius, which can meet the lifting and transportation needs in the construction of high-rise buildings. There are two kinds of tower cranes: fixed and mobile, and the mobile type includes two types: rail type and tire type, which can move horizontally along the track or tires.
2. Construction elevators.
The construction elevator is a kind of vertical transportation equipment specially used in the construction of high-rise buildings, with a high lifting height and fast transportation speed, which can meet the vertical transportation needs of materials, equipment and personnel in the construction of high-rise buildings. There are two types of construction elevators: attached and free-style, the attached construction elevator needs to be attached to the building, while the free-type construction elevator does not.
3. a derrick. A derrick is a simple vertical transportation equipment in the construction of high-rise buildings, which is usually used in the construction of buildings with low heights. The derrick is composed of columns, beams, lifting equipment, rigging and other components, which has the advantages of simple structure, convenient installation and low cost.
However, due to its limited lifting height and bearing capacity, it needs to be selected and configured according to the specific construction situation.
Precautions for the construction of high-rise buildings:
1. Construction safety measures.
High-rise buildings are high in height and large in volume, making construction difficult and safety risks high. Therefore, it is necessary to take effective safety measures to ensure the safety of construction personnel during the construction process. It is necessary to establish and improve the safety management system, strictly abide by the relevant safety regulations, do a good job in safety training and disclosure, and ensure that every construction personnel understand the safety operation procedures.
At the same time, it is necessary to conduct regular safety inspections to discover and solve potential safety hazards in a timely manner.
2. Construction quality management.
The quality of high-rise buildings is related to the safety of people's lives and property, so construction quality management is the key. It is necessary to establish and improve the quality management system, strictly control the quality of materials, construction technology and quality inspection, and ensure that the quality of each link meets the requirements. At the same time, it is necessary to pay attention to technological innovation and upgrading, and improve the quality and efficiency of construction.
3. The construction environment is protected by socks.
The construction of high-rise buildings will have a certain impact on the environment, so it is necessary to pay attention to environmental protection. Effective measures should be taken to reduce the impact of noise and dust on the surrounding environment, and keep the construction site clean and hygienic. At the same time, it is necessary to arrange the construction time reasonably to avoid affecting people's normal life during the peak period.
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Answers]: a, b, d, e
p336-338
Vertical conveyor hail machinery and equipment trust silver choice: tower cranes, construction elevators, sliding banquet material hoisting frames, concrete pumps.
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Vertical transportation operations are a critical part of high-rise building construction. It involves the transportation of materials, equipment, and people inside the building. In this process, vertical transportation operations have the following characteristics:
1.Large transport volumes.
High-rise buildings are often made up of many floors, so they require a lot of materials, equipment, and people to get in and out. The volume of these supplies is enormous, requiring the use of equipment such as large lifts, freight elevators and escalators. The operation of these equipment requires a lot of energy, and at the same time, a lot of money is invested in maintenance and maintenance.
2.The cost of machinery is large.
Vertical transportation operations require the use of a wide variety of machinery and equipment, such as lifts, freight elevators, escalators, etc. The operation of these machines requires a lot of energy and requires regular maintenance and upkeep. Therefore, machinery expenses are an important cost in vertical transportation operations.
3.It has a great impact on the construction period.
The smoothness of vertical transportation operations directly affects the progress of the entire building construction. If there is a problem with the vertical transportation operation, the materials, equipment and personnel inside the building will not be able to enter and exit in a timely manner, which will delay the construction of the entire project. Therefore, in the construction of high-rise buildings, the management and scheduling of vertical transportation operations are very important.
To sum up, vertical transportation operations in the construction of high-rise buildings have the characteristics of large transportation volume, large mechanical costs and great impact on the construction period. Therefore, when carrying out vertical transportation cluster pin operations, it is necessary to select appropriate machinery and equipment, and carry out effective management and scheduling to ensure the smooth progress of the entire building construction.
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The combination of vertical ridge shelter transportation hail song commonly used in the construction of super high-rise buildings includes ().
a.Fast hoist, ten concrete pumps, ten construction elevators.
b.Tower crane ten fast hoist ten construction elevators.
c.Tower crane ten fast hoist ten concrete source field Zheng pump ten construction elevator.
d.Fast hoist ten concrete pumps.
e.Tower crane ten construction elevators.
Correct answer: abce
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In engineering construction, vertical transportation is an indispensable part. It is mainly used to transport building materials and other items from the ground to the sky, so as to realize the smooth progress of various work of construction projects. The following are commonly used vertical transportation tools.
The first is the lift. The elevator is simple and easy to use, which can meet the multiple needs of the construction site. It is generally divided into two types: cargo lifts and personnel lifts.
At construction sites, cargo lifts are mainly used for the vertical transportation of high-altitude construction equipment and materials, while personnel lifts can be lifted or closed for convenient, fast and safe personnel transportation services.
The second type is the tower crane. Tower crane is a very important construction machinery on the construction site, mainly used for the vertical transportation of materials and equipment at the construction site, with functions such as lifting, installation, transportation and unloading. In high-shirt cracked buildings and large-scale projects, tower cranes are almost indispensable.
Some large buildings even require multiple tower cranes.
The third type is scaffolding. Scaffolding is widely used in construction projects, it can not only provide a stable working platform, but also serve as a vertical passage for the transportation of goods. Generally speaking, scaffolding can also be divided into two types: tubular scaffolding and portal scaffolding.
Tubular scaffolding has a simple and easy-to-use structure and is easy to build, while portal scaffolding is more suitable for cantilevering and aerial work.
In general, vertical transportation vehicles play an important role in the construction of construction projects. Choosing the right vertical transportation tool can make the construction of a construction project more efficient, safe and convenient. Therefore, the construction party needs to make reasonable planning and scientific management when selecting and using vertical transportation tools to ensure the safety and smooth progress of the construction site.
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