General Structural Drawing of a Circular Culvert

Main technical standards: 1. Design load: highway - Class I; 2. Environment category of the structure: Class I; 3. Design safety level: Level III Main materials: 1. Pipe body concrete: C30 concrete. 2. Pipe body reinforcement: R235 reinforcement and HRB335 reinforcement are used. 3. Foundation: C 20 concrete is used for pipe body foundation. 4. Opening: C20 concrete is used as cap stone. 6. C20 concrete is used for splayed wall body, straight wall body, straight wall body and foundation. 7. C20 rubble concrete shall be used for the river bed paving and diaphragm wall at the portal, and the strength grade of rubble stone shall not be less than MU50. ...... Design calculation: ①. This general drawing checks the strength and crack width of the section according to the two methods of bearing capacity limit state and normal service limit state. ② Calculation theory: the calculation is based on rigid pipe joint, that is, the deformation of the pipe joint is not considered, and the friction between the soil column at the top of the culvert and the surrounding fill is not considered. The angle distribution method is used for calculation, and the semi infinite elastic body theory is used for calculation. ③ The pipe joint reinforcement is analyzed according to the pure bending section. The two-way reinforcement pipe wall is used to set two layers of reinforcement inside and outside the circle. The pipe joint reinforcement is designed by crack control. ④ The vehicle load is used as a variable action, and the self weight of the fill and pipe body is used as a permanent action. The effect combination shall be carried out according to the specification requirements. ⑤ Soil weight: calculated according to soil column weight theory, internal friction angle φ=35 °, soil volume weight: 18KN/m3. ...... Structure: ①. Pipe joints are divided into standard pipe joints and auxiliary pipe joints for length adjustment. The standard pipe joint is 2m long, and the auxiliary pipe joint is 1m and 0.5m long. ② The water flow condition at the portal is good, and the splayed wall type portal should be used. When the splayed portal is used, the tapered slope protection should be used to ensure the stability of the end wall and improve the drainage. ③ Pipe joint structure: the gap between pipe joints shall be filled with asphalt yarn and asphalt oakum soaked in asphalt, and the outer ring shall be fully coated with two layers of hot asphalt. ④ . Foundation structure: C20 concrete foundation is used for general soil sections, and sand gravel cushion is used below; C20 reinforced concrete is used in soft foundation section. ... 1 sheet in total.

Data introduction: main technical standards: 1. Design load: highway - Class I; 2. Environment category of the structure: Class I; 3. Design safety level: Level III Main materials: 1. Pipe body concrete: C30 concrete. 2. Pipe body reinforcement: R235 reinforcement and HRB335 reinforcement are used. 3. Foundation: C 20 concrete is used for pipe body foundation. 4. Opening: C20 concrete is used as cap stone. 6. C20 concrete is used for splayed wall body, straight wall body, straight wall body and foundation. 7. C20 rubble concrete shall be used for the river bed paving and diaphragm wall at the portal, and the strength grade of rubble stone shall not be less than MU50. ...... Design calculation: ①. This general drawing checks the strength and crack width of the section according to the two methods of bearing capacity limit state and normal service limit state. ② Calculation theory: the calculation is based on rigid pipe joint, that is, the deformation of the pipe joint is not considered, and the friction between the soil column at the top of the culvert and the surrounding fill is not considered. The angle distribution method is used for calculation, and the semi infinite elastic body theory is used for calculation. ③ The pipe joint reinforcement is analyzed according to the pure bending section. The two-way reinforcement pipe wall is used to set two layers of reinforcement inside and outside the circle. The pipe joint reinforcement is designed by crack control. ④ The vehicle load is used as a variable action, and the self weight of the fill and pipe body is used as a permanent action. The effect combination shall be carried out according to the specification requirements. ⑤ Soil weight: calculated according to soil column weight theory, internal friction angle φ=35 °, soil volume weight: 18KN/m3. ...... Structure: ①. Pipe joints are divided into standard pipe joints and auxiliary pipe joints for length adjustment. The standard pipe joint is 2m long, and the auxiliary pipe joint is 1m and 0.5m long. ② The water flow condition at the portal is good, and the splayed wall type portal should be used. When the splayed portal is used, the tapered slope protection should be used to ensure the stability of the end wall and improve the drainage. ③ Pipe joint structure: the gap between pipe joints shall be filled with asphalt yarn and asphalt oakum soaked in asphalt, and the outer ring shall be fully coated with two layers of hot asphalt. ④ . Foundation structure: C20 concrete foundation is used for general soil sections, and sand gravel cushion is used below; C20 reinforced concrete is used in soft foundation section. ... 1 sheet in total.

Main technical standards: 1. Design load: highway - Class I; 2. Environment category of the structure: Class I; 3. Design safety level: Level III Main materials: 1. Pipe body concrete: C30 concrete. 2. Pipe body reinforcement: R235 reinforcement and HRB335 reinforcement are used. 3. Foundation: C 20 concrete is used for pipe body foundation. 4. Opening: C20 concrete is used as cap stone. 6. C20 concrete is used for splayed wall body, straight wall body, straight wall body and foundation. 7. C20 rubble concrete shall be used for the river bed paving and diaphragm wall at the portal, and the strength grade of rubble stone shall not be less than MU50. ...... Design calculation: ①. This general drawing checks the strength and crack width of the section according to the bearing capacity limit state and the normal service limit state. ② Calculation theory: the calculation is based on rigid pipe joint, that is, the deformation of the pipe joint is not considered, and the friction between the soil column at the top of the culvert and the surrounding fill is not considered. The angle distribution method is used for calculation, and the semi infinite elastic body theory is used for calculation. ③ The pipe joint reinforcement is analyzed according to the pure bending section. The two-way reinforcement pipe wall is used to set two layers of reinforcement inside and outside the circle. The pipe joint reinforcement is designed by crack control. ④ The vehicle load is used as a variable action, and the self weight of the fill and pipe body is used as a permanent action. The effect combination shall be carried out according to the specification requirements. ⑤ Soil weight: calculated according to soil column weight theory, internal friction angle φ=35 °, soil volume weight: 18KN/m3. ...... Structure: ①. Pipe joints are divided into standard pipe joints and auxiliary pipe joints for length adjustment. The standard pipe joint is 2m long, and the auxiliary pipe joint is 1m and 0.5m long. ② The water flow condition at the portal is good, and the splayed wall type portal should be used. When the splayed portal is used, the tapered slope protection should be used to ensure the stability of the end wall and improve the drainage. ③ Pipe joint structure: the gap between pipe joints shall be filled with asphalt yarn and asphalt oakum soaked in asphalt, and the outer ring shall be fully coated with two layers of hot asphalt. ④ . Foundation structure: C20 concrete foundation is used for general soil sections, and sand gravel cushion is used below; C20 reinforced concrete is used in soft foundation section. ... 1 sheet in total.

The drawings include: cross section of culvert body, elevation plan of portal, portal form drawing, taper slope portal size drawing, splayed portal drawing, pipe culvert plan, etc.

Technical indicators of slab culvert: 1. Aperture: 1.5m, 2.0m, 3.0m, 4.0m, 6.0m. 2. Two types are designed according to the filling height at the culvert top: 1) The separated foundation reinforced concrete slab culvert is generally applicable to the filling thickness at the culvert top of 0.5m~4.0m. 2) The integral foundation reinforced concrete slab culvert is generally applicable to the top of the culvert with a filling thickness of 2.0m~16.5m. 3. The skew degree of culvert φ is 0 °～ 45 °. 4. Portal type: taper slope, drop well, splay. 5. Design load: highway Class I. ...... Technical indicators of circular pipe culvert: 1. Aperture: 1.0m, 1.25m, 1.5m. 2. Filling height of pipe top: 0.50~6.00m. 3. The skew degree φ of culvert is 0 °, 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 °, 45 °. 4. Portal type: conical slope, drop well. 5. The minimum allowable bearing capacity of the foundation is required to be 200Kpa, which is consistent with the specific culvert design drawings. 6. Design load: highway Class I. ...... Technical indicators of stone arch culvert: 1. Span: 2.0, 3.0, 4.0, 5.0 m. 2. Intersection angle: 90 ° (refers to the intersection angle between culvert axis and route). 3. Load: highway - Class I. 4. Fill height: 2.0~20.0m. 5. Rise span ratio: 1/3. ...... 51 sheets in total,

This drawing is the general drawing design of reinforced concrete circular pipe culvert, including the general layout, structural drawing of culvert body, longitudinal section, plan, structural drawing of pipe joint reinforcement, etc. ... 18 sheets in total.

The drawing is the general drawing design for the construction of reinforced concrete circular pipe culvert, including the vertical section view, plan view, elevation view of the opening, as well as the general layout of the pipe culvert, and the structural drawing of prefabricated pipe joints. ... 16 sheets in total.

Technical indicators: 1. Aperture: 1.25 m; 2. Filling height of pipe top: 0.50~8.00 m; 3. Inclination φ: (refers to the included angle between the normal direction of the road centerline) 0 °~45 ° (one degree); 4. Opening form: cone slope; 5. Design load: highway - Class I Designed in 2015, there are 3 CAD design drawings in total.

Structural Drawing of Reinforced Concrete Pipe Joint Reinforcement of Circular Pipe Culvert

Detailed drawing of structural node of reinforced concrete circular pipe culvert oblique culvert taper slope portal

（1） Design calculation: 1. The allowable stress and ultimate stress are used to calculate the stress and crack of the section respectively. 2. Live load calculation theory: the calculation is based on rigid pipe joint, which does not consider the deformation of the pipe joint, nor the friction between the soil column at the top of the culvert and the surrounding fill. The angle distribution method is used for calculation, and the semi infinite elastic body theory is used for calculation. 3. The pipe joint reinforcement is analyzed according to the pure bending section. The two-way reinforcement pipe wall is used to set two layers of reinforcement inside and outside the circle, and different grades of reinforcement are used according to the pipe diameter. The pipe joint reinforcement is designed by crack control. 4. When the fill thickness is ≤ 6m, the impact of live load shall be considered. However, since there is little difference between the two loads on the stress of pipe joint and there is no difference in reinforcement, the two loads shall be combined. When the fill thickness is>6m, the impact of live load is not considered. 　　

This data is a general design drawing of reinforced concrete circular pipe culvert, including 1m and 1.5m aperture. The design is accurate and the drawing is complete, which has certain reference value for bridge and culvert designers. 　　...... Designed in 2000, there are 7 CAD design drawings in total.