What Are the Different Types of Structural Engineering Services?

Structural engineering is a second-level discipline that belongs to the first-level discipline of civil engineering. It mainly uses mechanical methods to analyze and design structures, and to evaluate service status. The broad research object of structural engineering refers to all artificial structures on the earth's surface or in the shallow crust. Narrow structural engineering mainly includes industrial and civil buildings.

Reinforced concrete structural engineering is the dominant construction content of soil and water construction, and it has a very important role in terms of manpower and material consumption and the impact on the construction period. Reinforced concrete structural engineering includes the construction of cast-in-place concrete structures and the factory construction of prefabricated concrete components. The integrity of the cast-in-situ concrete structure is good and the earthquake resistance is strong. Low steel consumption, especially the emergence of some new tool formwork and construction machinery in recent years, has led to the rapid development of cast-in-situ construction of concrete structures. Especially in China, most of the high-rise buildings are cast-in-situ concrete structures. The development of high-rise buildings has also promoted the improvement of reinforced concrete construction technology. The construction of reinforced concrete structures includes major sub-items such as steel bars, formwork and concrete.

Structural lifting engineering is used

(1) Installation of grid structure

1) High-altitude bulk method. This is a method of directly integrating the rods and nodes (or small fight units) of the grid frame into a whole directly at a high altitude.

2) Slitting (blocking) lifting method. The net frame is divided into a plurality of strip-shaped or block-shaped units from a plane, and each strip (block) is assembled on the ground. Then it is hoisted by the hoisting machinery to the position where the juice is set, and then the whole is assembled.

3) Altitude slip method. The method of sliding the grid-like strip-shaped unit from one end to the other end on the building to form a whole after being in place.

4) Overall lifting and overall lifting method. The method of putting the net frame on the ground to form a whole, and using a lifting device to vertically raise (top) the net frame to the design elevation and fix it.

5) Overall hoisting method. After the net frame is assembled into a whole on the ground, it is hoisted to the design position by lifting equipment.

(2) Thin shell structure construction

1) Tall house assembly method for thin shell structure. On the ground, assemble the assembly bracket to the design level, and then suspend the prefabricated shell plate to the assembly bracket for assembly. This lifting method does not require large lifting equipment, but requires a certain number of assembled brackets.

2) High-altitude assembly method without support of thin shell structure. Utilizing the structure that has already been hoisted to support the newly hoisted part does not require assembly racks. When the thin shell structure is radially divided into blocks, this method can be used for assembly. ^[1]