This practice is a primary professional knowledge and time course for engineering management students after the end of the basic course and before the start of the professional course. Through this practice, the purpose is to increase students' perceptual knowledge of project site construction management, make students think about the organization and management of project construction, ask questions, stimulate students' enthusiasm for learning, understand the contents involved in professional courses, and lay a good foundation for the study of professional courses. Introduction to internship

Internship time: June 8, 2007 to June 9, 2007. Understand various engineering procedures through understanding practice; Understand the design intention, design scheme and construction details by reading the drawings; Understand the practical problems that may occur in engineering construction and learn practical solutions. Through this internship, we can have a more intuitive understanding of the on-site construction and management of building projects, enhance our perceptual knowledge of the basic theories and professional knowledge we have learned, comprehensively apply what we have learned, and solve problems encountered in the project together with the supervisor or construction foreman. Internship content:

Day 1 (07. 1.8): internship mobilization

Instructor: Mr. Zhou gave a detailed explanation of this internship, including the nature and tasks of this internship, teaching content and basic requirements, as well as safety and other related issues. The teaching contents and basic requirements are summarized as follows: 1. Understand the construction drawing of the internship project, understand the nature, scale, production technology, building structure and structural system, the characteristics of foundation and foundation, and personal views on design drawings; 2. Participate in the construction and organization management of the unit project or divisional project (1), understand the construction scheme (foundation and foundation construction method, structural characteristics, main load-bearing structure construction method, construction technical measures and personal views on the construction scheme), (2) understand the project progress plan and operation plan (drawing method, implementation, progress bar diagram or network diagram management plan and personal views on the plan), and (3) understand the preparation and construction budget. 4) Understand the organization and management system of the construction unit, the functions and relationships of various departments, and understand the functions and business scope of technicians. 5) Understand the implementation of new technologies, new processes, new materials and management modernization in the construction site. The next day (07. 2000053800 1

Instructor: Teacher Wu Ziyan.

This workshop consists of two symmetrical parts. Trapezoidal roof truss, I-beam, ceiling. Adopt bent structure, the column is hinged with the roof truss, and the foundation is just connected. This structure can bear a large load and is widely used in metallurgical and mechanical workshops, and its crane tonnage can reach more than 150 tons. The bent structure workshop has large span, high height and large crane tonnage. This structure is reasonable in stress, flexible in architectural design and convenient in construction. Comprises a transverse bent frame consisting of a foundation, upright posts and a roof truss; Longitudinal connection structure: foundation beam, connecting beam, ring beam, ceiling beam, etc. Finally, Mr. Wu also introduced the situation of side lighting and skylight lighting and the relevant knowledge of roof stress, which benefited a lot! Day 3 (07. 1. 12): Visit the industrial workshop of Shaanxi Flywheel Co., Ltd.

Instructor: Teacher Liu Jianmin.

Shaanxi Flywheel Co., Ltd. has two workshops under construction, with a total construction area of 5700m2. Because the No.2 factory building is under construction. We just visited the factory building 1 under the guidance of the supervisor. The steel structure of this workshop has 1 1 columns in the longitudinal wall, and the column spacing is 8m. In steel frame structures, the rigid connections between columns, beams and foundations are usually hinged. Due to the integral combination of beams and columns, this structure has poor rigidity, and it is only suitable for light-weight roof workshops or light-weight workshops or warehouses with crane tonnage not exceeding10t and span not exceeding10m. We mainly understand the characteristics of steel structure, as follows: 1 The material strength is high, and under the same load and constraint, when steel structure is adopted, the self-weight of the structure is usually small. When the span and load are the same, the weight of the rigid frame is only 1/4- 1/3 of that of reinforced concrete. Therefore, steel structure is especially suitable for structures with large span, high height and heavy load, and it is also most suitable for movable structures with disassembly requirements. 2. Steel has good plasticity and toughness. Because of its good plasticity, steel structures generally do not break due to accidental overload or local overload. The toughness of steel makes the steel structure more adaptable to load, and these characteristics of steel provide sufficient guarantee for the safety and reliability of steel structure. 3. The steel is closer to isotropic body, and the calculation is reliable. 4. The weldability of building steel is good. 5. The steel structure is simple to manufacture, convenient to construct and good in assembly. 6. The impermeability of steel is suitable for secret closed structures. 7. Steel materials are easy to corrode. Protective measures should be taken. 8. Steel structure has good heat resistance, but poor spinnability. When the temperature changes, the structure of the factory building will be deformed due to the temperature. Therefore, when the factory building is large in size, in order to avoid excessive temperature stress, temperature joints should be set in the horizontal and vertical directions of the factory building. Finally, through the introduction of the supervisor, we know that more than 500,000 engineering countries set up the supervisor compulsorily, and the supervisor is tripartite, and Party A is responsible for both parties, and Party A pays the supervisor. Day 4 (07. 1. 13): Visit the sales office and building materials market.

Instructor: Teacher Chen Jiyong.

Today, I visited the "Park World" sales office and a world building materials market. The sales office of "Park Tianxia" is located at No.21Taoyuan South Road, Lianhu District, with a building scale of101385m2, a building area of 93,393m2 and 855 houses. Purchase price: The land price is divided into five grades. The contract price is153.58 million yuan, the commencement date is 2006-3- 1 and the completion date is 2007- 10-25. Through the introduction of the sales office lady, we know that the first phase of the project has been sold out and the second phase has not yet broken ground. The whole living environment is elegant, and the green area accounts for 40%. All the houses are middle and high-rise, and 65,438+02-65,438+03,000 yuan shall be paid in advance, which can be paid in installments in the future; After that, we came to the building materials market. Because of the dazzling array of building materials, we only made a cursory visit, focusing on the situation of the floors. There are four kinds of wood floors commonly used in general family decoration: solid wood flooring, open wood flooring and laminate flooring. Bamboo flooring is generally used less in family decoration, so I won't introduce it here. Different wood floors have different materials, different production processes, different decorative effects, different prices and different quality. From the origin of wood flooring, it can be divided into domestic wood flooring, joint venture wood flooring and imported wood flooring. In Beijing's decoration materials market, solid wood flooring is mainly made in China, with a small amount of imported products; Mingmu solid wood flooring is mostly a joint venture product; Laminated flooring is mostly imported products. There are many kinds of wooden floors, with different specifications and sizes. Day 5 (07. 1. 15): Professional Summary

Instructor: Teacher Wu Ziyan.

Teacher Wu focused on two aspects: first, the development history and research direction of engineering management were summarized; Secondly, it briefly introduces some contents of Introduction to Civil Engineering. Engineering management cultivates compound talents. As a student majoring in engineering management, you must have relevant technical, management, economic and legal knowledge. In addition, you must obtain several related certificates! The introduction of civil engineering focuses on the understanding of architectural engineering, including the mechanical characteristics of various basic components; Basic structural types and stress characteristics of high-rise buildings; Basic steps of building structure design. Day 6 (07. 1. 16): Visit the construction site-steel bars.

Instructor: Teacher Zhang Jianping.

Enhanced knowledge. The ratio of steel bars is large, which can bear both pressure and tension; Concrete has a small specific gravity, but it can withstand pressure, but not tension. If all buildings are made of steel, not only the cost is high, but also the thermal insulation performance is poor, so the ground can't bear such a big pressure; If the building is made entirely of concrete, it is cheap, but it is not strong. However, by adding steel bars to concrete, the advantages of both have been utilized. Steel binding, the binding of the underlying foundation steel bar must be laid out first, and the number of joints per span steel bar is only 25%, that is, there is only one joint for four steel bars. In addition, the joint should be located in the compression zone as far as possible. In the process of building walls, if there are corners or intersections between walls, the two walls should be built together. In the process of leaving a gap, you can leave an oblique gap. If you want to leave a straight seam, you must leave a straight seam, with Rachel bars, but not a negative seam. In the process of concrete construction, we should pay special attention to the mixture ratio of concrete and pay attention to the hot curing; Connection mode of steel bars: At present, the connection modes of steel bars used in China's construction market include: steel bar binding and overlapping, mechanical cold extrusion connection, steel bar resistance welding, steel bar flash butt welding, steel bar arc welding, steel bar electroslag pressure welding, steel bar pneumatic butt welding, submerged arc welding of embedded steel bars, threaded sleeve connection, etc. At present, the main methods used are: lap welding, flash welding, electroslag welding, air pressure welding and threaded connection. Day 7 (07. 1. 17): Visit the trial building of beilin district People's Court.

Instructor: Teacher Zhang Jianping.

The construction unit of this project is Zhejiang Huaiyun. Today, Teacher Zhang and a chief engineer show us around. First, the chief engineer introduced the general situation of the project. The main building of the court is 23 stories high (including 2 underground floors), and the wall is frame-shear wall structure, with a building life of 70 years. Then the chief engineer showed us around the ground components and introduced the types and usage of steel bars, including the use of steel bar bending machine and straightening machine. Frame-shear wall structure, also known as frame-shear wall structure, is a structure that arranges a certain number of shear walls to form flexible and free use space to meet different building functional requirements. At the same time, there are enough shear walls and considerable stiffness. The mechanical characteristics of frame-shear wall structure is a new stress form composed of two different lateral force resisting structures, so its frame is different from pure frame structure, and the shear wall in frame-shear wall structure is also different from shear wall structure. Because, in the lower floor, the displacement of shear wall is small, and the frame is pulled to deform according to the bending curve, and the shear wall bears most of the horizontal force, but in the upper floor, the displacement of shear wall is increasing, which tends to be outward, while the frame tends to be inward. The shear wall of the frame is deformed according to the shear curve, and the frame bears not only the horizontal force generated by the external load, but also the additional horizontal force that pulls the shear back. The shear wall not only bears the horizontal force generated by the load, but also bears the negative shear force due to an additional horizontal force. Even if the floor shear force generated by the external load of the upper floor is small, considerable shear force appears in the frame. Finally, the chief engineer brought the Gantt chart of the project, and we discussed the construction procedure, how to control the construction speed, and the coping strategies for the project delay caused by unexpected reasons. He pointed out the key path and total duration of Gantt chart, and explained that Gantt chart can only explain the logical relationship of working procedures, and the specific construction should be carried out according to the time scale network diagram of the project. And there should be a progress report of the project every week. If there is any accident, a meeting should be held to discuss and make a specific plan.

Day 8 (07. 1. 18): Visit the construction site-pile foundation.

Instructor: Teacher Liu Jianmin.

Today, I visited two foundations, both of which are pile foundations, one with 22 floors and the other with 24 floors, both of which are 35 meters deep and bearing capacity of more than 400 tons. Pile foundation is generally composed of pile body and pile cap. Pile foundation includes: end-bearing piles, and the structural force is directly transferred to the bearing stratum (rock stratum) through the pile foundation, which is suitable for geological conditions with hard rock stratum at a certain depth below the ground. Friction pile, which transfers structural force to soil through friction between pile body and soil layer, is suitable for buildings with light structural weight and less stress. Enlarging foundation: the contact area between pile foundation and soil is large, so the force per unit area on soil is small, the requirement for soil strength is low, and the buried depth is shallow. It is suitable for geological conditions with deep buried depth or shallow buried depth. Both have their own advantages and disadvantages, and there are no clear applicable conditions. The specific situation should be determined according to the economic and technical conditions of the scheme. Pile foundation belongs to underground concealed engineering, which is closely related to the engineering geology and hydrological conditions in the construction area. The survey data on the foundation is an important basis for the design and construction of pile foundation, so we must firmly grasp the actual geological data, otherwise the rigorous formula will only be a dead letter, which is far from the actual situation. Bored cast-in-place pile is widely used mainly because it has the advantages of simple equipment, convenient construction, obvious economic benefits and strong adaptability.

Internship experience: Internship is a good opportunity for students who are about to enter the society to get familiar with the society. Internship is our first stop to understand the society. Through this internship, I have an intuitive understanding of the on-site construction and management of building engineering, enhanced my perceptual knowledge of the basic theories and professional knowledge I have learned, and comprehensively applied what I have learned to solve the problems encountered in the project with the supervision engineer and chief engineer. And in this internship, I have a more realistic understanding of the responsibilities and functions of all parties in the construction project, and deeply understand all kinds of contradictions, constraints and practical problems contained in the project construction; I have witnessed the hard work of construction workers and the originality and practicability of their various technologies in actual construction. For example, the binding of steel bars and the binding of the underlying foundation steel bars must be laid out first, and the number of joints per span of steel bars is only 25%, that is, four steel bars have only 1 joint. In addition, the joint should be located in the compression zone as far as possible. In the process of building walls, if there are corners or intersections between walls, the two walls should be built together. In the process of leaving a gap, you can leave an oblique gap. If you want to leave a straight seam, you must leave a straight seam, with Rachel bars, but not a negative seam. In the process of concrete construction, we should pay special attention to the mixture ratio of concrete and pay attention to the hot curing. What I saw and heard on the construction site further stimulated my love and yearning for this major, and also made me deeply realize that if I want to make a difference in the construction industry, I should make more efforts not only in theory but also in practical application. At the same time, I deeply feel a responsibility, and hope that through my own efforts, I will contribute my strength to the great construction of the motherland and realize my own value. Student's signature: * * * * * * * * * *