Pile-supported beam pier berthing structure component installation device and installation method thereof

Abstract

The application relates to a high-pile plate beam type wharf berthing component installation device and an installation method thereof, and particularly relates to a high-pile plate beam type wharf berthing component installation device and an installation method thereof. The device comprises a small portal and a simple raft, the small portal comprises four vertical columns and two vertical longitudinal beams fixed at the upper ends of the vertical columns, the bottom of the four vertical columns is fixed on a pile cap, the front end of the two longitudinal beams is provided with a safety limiting cross beam, one walking trolley is arranged on each of the two longitudinal beams, a hoisting main cross beam is arranged between the two walking trolleys, the lower end of the hoisting main cross beam is provided with a main drop chain, and the lower end of the safety limiting cross beam is provided with an auxiliary drop chain. The application effectively solves the difficulty that the berthing component cannot be installed due to the hoisting weight of a tower crane and the limitation of site conditions, saves the construction cost, is high in installation efficiency, and guarantees the construction period of the wharf and the revetment project.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of high-pile slab-beam wharf berthing component installation, in particular to a high-pile slab-beam wharf berthing component installation device and installation method thereof. BACKGROUND

[0002] The high-pile slab-beam wharf takes a cross beam as a main beam and is supported on piles, and is an important component for connecting the piles and the longitudinal beams and the slab. The berthing prefabricated component needs to be installed before the construction of the cross beam. The berthing component is a reinforced concrete structure prefabricated on site, and the weight of a single component is about 2 tons. In the actual construction process, due to the limitation of the lifting capacity of the tower crane front arm and the site conditions, some berthing components cannot be installed by the tower crane or the truck crane, and the cost of the crane ship and the platform is too high, which affects the construction efficiency and economic benefits. SUMMARY

[0003] The present application aims to provide a high-pile slab-beam wharf berthing component installation device and installation method thereof, which effectively solves the difficulty of berthing component installation caused by the limitation of the lifting capacity of the tower crane and the site conditions, saves construction cost, has high installation efficiency, and ensures the construction period of the wharf and revetment project.

[0004] The high-pile slab-beam wharf berthing component installation device provided by the present application comprises a small gantry and a simple raft, the small gantry comprises four vertical columns and two longitudinal beams fixed vertically at the upper ends of the vertical columns, the bottom of the four vertical columns is fixed on a pile cap, the front end of the two longitudinal beams is provided with a safety limiting cross beam, and one walking trolley is arranged on each longitudinal beam; a lifting main cross beam is arranged between the two walking trolleys; the lower end of the lifting main cross beam is provided with a main reversing chain; the lower end of the safety limiting cross beam is provided with an auxiliary reversing chain; the simple raft comprises floating barrels, fixed steel pipes and a transportation platform, the floating barrels are fixed together by being transversely and longitudinally crossed and tied, the upper end of the floating barrels is provided with the transportation platform, safety railings are arranged on the three side edges of the upper end of the floating barrels, and an opening is reserved on one side edge of the upper end of the floating barrels for placing the berthing component.

[0005] Further, a trolley limiting cross beam is arranged in the middle of the two longitudinal beams, and a balance steel wire rope is arranged at the rear end of the two longitudinal beams, and the bottom of the balance steel wire rope is fixed on the pile cap.

[0006] Further, the simple raft comprises floating barrels, fixed steel pipes and a transportation platform, the floating barrels are fixed together by being transversely and longitudinally crossed and tied, the upper end of the floating barrels is provided with the transportation platform, safety railings are arranged on the three side edges of the upper end of the floating barrels, and an opening is reserved on one side edge of the upper end of the floating barrels for placing the berthing component.

[0007] Further, the walking trolley comprises a trolley body and track wheels, the bottom of the trolley body is provided with track wheels matched with the longitudinal beams, the inner side of the trolley body is provided with a safety limiting plate, and the upper end of the trolley body is provided with a lifting main cross beam.

[0008] Further, a diagonal supporting rod is arranged between the front end of the longitudinal beam and the column at the front end.

[0009] Further, a cross beam is arranged at the top end and the middle of the column, and positioning pins are symmetrically arranged at the two ends of the cross beam at the top end.

[0010] A high-pile slab beam type wharf berthing component installation method, comprising the following steps:

[0011] Step 1: according to the site conditions of the high-pile slab beam type wharf, a small portal frame is made;

[0012] Step 2: the small portal frame made in step 1 is hoisted to the pile cap by the tower crane, and the bottom of the four columns of the small portal frame is fixed on the pile cap;

[0013] Step 3: after the small portal frame is installed, the simple raft is hoisted into the water within the maximum lifting range of the tower crane, and is temporarily fixed with the cross beam of the small portal frame by a steel wire rope;

[0014] Step 4: the berthing component is hoisted to the simple raft by the tower crane for temporary fixing, the simple raft is manually pulled to the berthing component installation position, and is temporarily fixed with the pile cap;

[0015] Step 5: after the main and auxiliary hoisting chains are connected with the lifting ring at the upper end and the steel wire rope at the lower end of the berthing component, the main and auxiliary hoisting chains are pulled for lifting;

[0016] Step 6: after the berthing component is hoisted and turned over, the main hoisting chain is loosened, the berthing component is lowered to the installation height, the walking trolley is manually pulled to accurately position the berthing component, the elevation and plane position are rechecked, the reserved main reinforcement of the berthing component is welded with the reinforcement of the pile cap, the main hoisting chain is loosened until it is withdrawn, and the installation of the berthing component is completed.

[0017] Further, in step 2, the four columns of the small portal frame are temporarily welded and fixed with the reinforcement of two pile caps according to the installation position of the berthing component, the balance steel wire ropes at the rear ends of the two longitudinal beams are connected with the reinforcement of the pile cap by high-strength U-shaped shackles, and the small portal frame is fixed by diagonal pulling with the adjacent pile cap by a steel wire rope to increase stability.

[0018] Further, in step 5, the main and auxiliary hoisting chains are pulled for lifting, after the berthing component is hoisted away from the simple raft, the main hoisting chain continues to lift, while the auxiliary hoisting chain is loosened, until the auxiliary hoisting chain is completely withdrawn, and the hoisting and turning over of the berthing component are completed.

[0019] Further, according to the site condition of the high-pile slab-beam wharf, the step 1 is to cut and weld the materials such as 16# and 12# I-beams according to the size of safety calculation to form a small gantry; the length of the longitudinal beam 11 of the small gantry 1 is 9.7m, the height of the column 12 is 2.5m, the distance between the front end column 12 and the rear end column 12 is 6.4m, the width of the cross beam 19 is 1.5m, the distance between the safety limiting cross beam 13 and the trolley limiting cross beam 16 is 1.8m, the total weight of the small gantry 1 is about 828.7kg, which meets the requirement of the maximum amplitude / maximum lifting weight 1.1t of the tower crane, the small gantry is hoisted and moved by the tower crane as a whole, and the construction efficiency is greatly improved; the simple raft is made of 30 floating barrels fixed by a fastener type steel pipe, and a transportation platform is arranged on the upper surface of the floating barrel.

[0020] Further, the steps 2-6 are repeated to hoist the small gantry as a whole to the next installation position of the high-pile slab-beam wharf, and the next berthing component is continuously installed until the whole project construction is completed.

[0021] The high-pile slab-beam wharf berthing component installation device and the installation method thereof have the following beneficial effects:

[0022] 1. The installation of the prefabricated berthing component can be effectively solved, and the construction is particularly suitable for the situation that the conventional hoisting equipment cannot be used and the number of berthing components to be installed is small.

[0023] 2. The difficulty that the berthing component cannot be installed due to the lifting weight of the tower crane and the site condition limitation is effectively solved, the installation efficiency is high, and the construction period of the wharf and the revetment project is ensured.

[0024] 3. The use of the ship is reduced, the construction efficiency is improved, and the construction cost is reduced.

[0025] 4. The berthing component is installed by using the inverted chain combined with the walking trolley, the operation is simple, the accurate positioning can be realized, and the installation quality of the berthing component is effectively improved.

[0026] 5. The simple raft and the small gantry are simple and easy to manufacture, and the materials used are mostly waste steel, which saves the cost.

[0027] Therefore, the difficulty that the berthing component cannot be installed due to the lifting weight of the tower crane and the site condition limitation is effectively solved, the construction cost is saved, the installation efficiency is high, and the construction period of the wharf and the revetment project is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings disclose the specific embodiments of the present application, wherein,

[0029] Figure 1is a structural schematic diagram of the present application;

[0030] Figure 2 is a structural sectional view of the walking trolley of the present application;

[0031] Figure 3 is a structural schematic diagram of the simple raft of the present application;

[0032] Figure 4 is a structural manufacturing diagram of the walking trolley of the present application;

[0033] Figure 5 is a structural manufacturing diagram of the simple raft of the present application;

[0034] Figure 6 is a process flow diagram of the present application;

[0035] Figure 7 is a use state diagram of the present application;

[0036] Figure 8 is a normal stress checking diagram in the lifting process in embodiment 4 of the present application;

[0037] Figure 9 is a normal stress checking diagram in the installation process in embodiment 4 of the present application;

[0038] Figure 10 is a shear stress checking diagram in the lifting process in embodiment 4 of the present application;

[0039] Figure 11 is a shear stress checking diagram in the installation process in embodiment 4 of the present application;

[0040] Figure 12 is a force decomposition diagram in the lifting process in embodiment 4 of the present application;

[0041] Figure 13 is a force decomposition diagram in the installation process in embodiment 4 of the present application;

[0042] Figure 14 is a cantilever strength checking diagram before the lifting and installation processes in embodiment 4 of the present application;

[0043] Reference signs: 1, small gantry; 11, longitudinal beam; 12, stand column; 13, safety limiting cross beam; 14, lifting main cross beam; 141, main drop chain; 15, auxiliary drop chain; 16, trolley limiting cross beam; 17, balance steel wire rope; 18, oblique support rod; 19, cross beam; 191, positioning pin; 3, simple raft; 31, floating barrel; 32, fixed steel pipe; 33, transportation platform; 34, safety rail; 4, pile cap; 5, walking trolley; 51, trolley main body; 52, track wheel; 53, safety limiting plate; 6, ship berthing component. DETAILED DESCRIPTION

[0044] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0045] like Figures 1-3 As shown, the high-pile plate beam type dock mooring component installation device provided by the present invention includes a small gantry 1 and a simple raft 3. The small gantry 1 includes four columns 12 and two longitudinal beams 11 fixed vertically at their upper ends. The bottoms of the four columns 12 are fixed on the pile caps 4. The front ends of the two longitudinal beams 11 are provided with safety limit beams 13, and each of the two longitudinal beams 11 is provided with a walking trolley 5; a lifting main beam 14 is provided between the two walking trolleys 5; the lower end of the lifting main beam 14 is provided with a main fall chain 141; the lower end of the safety limit beam 13 is provided with an auxiliary fall chain 15; the simple raft 3 includes a floating barrel 31, a fixed steel pipe 32 and a transport platform 33. The floating barrel 31 is fixed together by the fixed steel pipe 32 cross-bundled horizontally and vertically, the upper end of the floating barrel 31 is provided with a transport platform 33, the three sides of the upper end of the floating barrel 31 are provided with safety railings 34, and an opening is reserved on one side of the upper end of the floating barrel 31 for placing the mooring component 6.

[0046] Example 1

[0047] like Figure 7 As shown, when using the present invention, first, a tower crane is used to lift the small gantry 1 onto the pile cap 4, and the bottoms of the four columns 12 of the small gantry 1 are fixed to the pile cap 4. The simple raft 3 is then hoisted and launched into the water to within the maximum lifting capacity of the tower crane and temporarily secured to the crossbeam 19 of the small gantry 1 using steel wire ropes. Next, the mooring member 6 is hoisted onto the simple raft 3 using the tower crane for temporary fixation. The simple raft 3 is manually towed to the installation location of the mooring member 6 and temporarily secured to the platform cap. Then, connect the main fall chain 141 and the auxiliary fall chain 15 to the lifting ring at the upper end and the wire rope at the lower end of the mooring component 6 respectively, and then pull the main fall chain 141 and the auxiliary fall chain 15 to lift it; finally, loosen the main fall chain 141 to lower the mooring component 6 to the installation height, and manually pull the walking trolley 5 to accurately position the mooring component 6. After verifying the elevation and plane position, firmly weld the reserved main reinforcement of the mooring component 6 to the platform cap reinforcement, loosen the main fall chain 141 until it is withdrawn, and complete the installation of the mooring component 6.

[0048] A trolley-limiting crossbeam 16 is positioned between the two longitudinal beams 11. Balancing wire ropes 17 are installed at the rear ends of the beams 11, with their bases secured to the pile caps 4. The trolley-limiting crossbeam 16 limits the position of the trolley 5, enhancing safety. The balancing wire ropes 17 at the rear ends of the beams 11 are connected to the reinforcement of the pile caps 4 using high-strength U-shaped shackles. The wire ropes are used to secure the small portal frame 1 to the adjacent pile caps 4, providing increased stability.

[0049] The simple raft 3 comprises floating barrels 31, fixed steel pipes 32 and a transport platform 33. The floating barrels 31 are fixed together by the fixed steel pipes 32 and steel wires. The upper end of the floating barrels 31 is provided with the transport platform 33. The upper end of the floating barrels 31 is provided with safety railings 34 on three sides. The upper end of the floating barrels 31 is provided with an opening on one side for placing the berthing member 6. The 30 floating barrels 31 are fixed together by the fixed steel pipes 32 and steel wires. The floating barrels 31 are provided with wooden boards as the transport platform 33 for transporting the berthing member 6. The difficulty that the berthing member cannot be installed due to the lifting weight of the tower crane and the limitation of the site conditions is effectively solved. Meanwhile, the construction cost is saved.

[0050] The walking trolley 5 comprises a trolley body 51 and track wheels 52. The bottom of the trolley body 51 is provided with the track wheels 52 matched with the longitudinal beams 11. The inner side of the trolley body 51 is provided with safety limit plates 53. The upper end of the trolley body 51 is provided with the lifting main cross beam 14. The walking trolley 5 is manually pulled. The track wheels 52 walk on the longitudinal beams 11. The safety limit plates 53 can prevent the trolley body 51 from separating from the longitudinal beams 11. The walking trolley 5 makes the berthing member 6 accurately in place through the lifting main cross beam 14 and the main drop chain 141. After the elevation and plane position are reviewed, the berthing member 6 is welded with the reserved main reinforcement and the cap steel reinforcement. The main drop chain 141 is loosened until it is withdrawn. The installation of the berthing member 6 is completed.

[0051] The inclined support rods 18 are arranged between the front ends of the longitudinal beams 11 and the columns 12. The inclined support rods 18 can improve the fixing force and supporting force between the longitudinal beams 11 and the columns 12, improve the safety and facilitate the installation of the berthing member.

[0052] The top end and the middle of the column 12 are provided with cross beams 19. The two ends of the cross beam 19 at the top end are symmetrically provided with positioning pins 191. The positioning pins 191 facilitate the installation of the longitudinal beams 11 on the cross beams 19, facilitate the processing of the small gantry 1 and facilitate the installation of the berthing member 6 by using the small gantry and the simple raft.

[0053] Embodiment 2

[0054] A high-pile slab beam type wharf berthing member installation method comprises the following steps:

[0055] Step 1: According to the site conditions of the high-pile slab beam type wharf, a small gantry 1 is made.

[0056] Step 2: The small gantry 1 made in step 1 is lifted to the pile cap 4 by the tower crane. The bottom of the four columns 12 of the small gantry 1 is fixed on the pile cap 4.

[0057] Step 3: After the small gantry 1 is installed, the simple raft 3 is lifted into the water to the maximum lifting range of the tower crane and is temporarily fixed with the cross beams 19 of the small gantry 1 by steel wires.

[0058] Step 4, use the tower crane to hoist the berthing member 6 to the temporary fixing of the simple raft 3, manually pull the simple raft 3 to the berthing member 6 installation position, and temporarily fix with the cap;

[0059] Step 5, after connecting the main and auxiliary chains 141 and 15 with the lifting ring at the upper end and the steel wire rope at the lower end of the berthing member 6, pull the main and auxiliary chains 141 and 15 to hoist;

[0060] Step 6, after the berthing member 6 is hoisted and turned, the main chain 141 is loosened, the berthing member 6 is lowered to the installation height, the walking trolley 5 is manually pulled to accurately position the berthing member 6, the reserved main reinforcement of the berthing member 6 is welded with the cap reinforcement after checking the elevation and plane position, the main chain 141 is loosened until it is withdrawn, and the installation of the berthing member 6 is completed.

[0061] Repeat steps 2-6 above to hoist the small gantry 1 to the next installation position of the high-pile slab girder wharf, continue to install the next berthing member 6, until the entire project construction work is completed.

[0062] Example 3

[0063] As shown in Figures 6-7 , a berthing member installation method for a high-pile slab girder wharf includes the following steps:

[0064] Step 1, according to the site conditions of the high-pile slab girder wharf, 16# and 12# I-beams and other materials are cut according to the safety calculation size, processed and welded into shape to make the small gantry 1; the length of the longitudinal beam 11 of the small gantry 1 is 9.7m, the height of the column 12 is 2.5m, the distance between the front and rear columns 12 is 6.4m, the width of the cross beam 19 is 1.5m, the distance between the safety limiting cross beam 13 and the trolley limiting cross beam 16 is 1.8m, the total weight of the small gantry 1 is about 828.7kg, which meets the requirements of the maximum amplitude and maximum lifting weight of the tower crane 1.1t, the small gantry 1 is hoisted and moved by the tower crane, and the construction efficiency is greatly improved; the simple raft 3 is made of fastener type fixed steel pipe 32 reinforced 30 floating barrels 31, the upper surface of the floating barrel 31 is paved with a transport platform 33, and the safety rail 34 is about 50cm high;

[0065] Step 2, use the tower crane to lift the small gantry 1 made in step 1 to the pile cap 4, and fix the bottom of the four columns 12 of the small gantry 1 on the pile cap 4; according to the installation position of the berthing member 6, temporarily weld and fix the four columns 12 of the small gantry 1 with the steel bars of the two pile caps 4 respectively, and use high-strength U-shaped shackles to connect the balance wire rope 17 at the rear end of the two longitudinal beams 11 with the steel bars of the pile cap 4, and use wire ropes to diagonally fix the small gantry 1 with the adjacent pile cap 4 to increase stability;

[0066] Step 3, after the installation of the small gantry 1 is completed, lift the simple raft 3 into the maximum lifting range of the tower crane, and temporarily fix it with the cross beam 19 of the small gantry 1 by wire ropes;

[0067] Step 4, make full use of the lifting capacity of the tower crane, and use the tower crane to lift the berthing member 6 to the simple raft 3 for temporary fixation, manually pull the simple raft 3 to the installation position of the berthing member 6, and temporarily fix it with the pile cap;

[0068] Step 5, after connecting the main chain 141 (5t load) and the auxiliary chain 15 (2t load) with the lifting ring at the upper end and the wire rope at the lower end of the berthing member 6 respectively, pull the main chain 141 and the auxiliary chain 15 to lift; after lifting the berthing member 6 from the simple raft 3, continue to lift the main chain 141, and at the same time, loosen the auxiliary chain 15 until the auxiliary chain 15 is completely withdrawn, thereby completing the lifting and overturning of the berthing member 6;

[0069] Step 6, after the berthing member 6 is completed, loosen the main chain 141 to lower the berthing member 6 to the installation height, manually pull the walking trolley 5 to accurately position the berthing member 6, recheck the elevation and plane position, and then weld the reserved main reinforcement of the berthing member 6 with the steel bars of the pile cap, loosen the main chain 141 until it is withdrawn, thereby completing the installation of the berthing member 6.

[0070] Repeat steps 2-6 above to lift the small gantry 1 to the next installation position of the high-pile slab-beam wharf, and continue to install the next berthing member 6 until the entire project construction is completed.

[0071] Example 4

[0072] As shown in Figures 6-7 , a berthing member installation method for a high-pile slab-beam wharf includes the following steps:

[0073] Step 1, as shown in Figure 4As shown, according to the site conditions of the high-pile slab girder wharf, 16# and 12# I-beams and other materials are cut according to the size of the safety calculation, processed and welded into shape, and the small gantry 1 is completed. The length of the longitudinal beam 11 of the small gantry 1 is 9.7m, the height of the column 12 is 2.5m, the distance between the front end column 12 and the rear end column 12 is 6.4m, the width of the cross beam 19 is 1.5m, the distance between the safety limiting cross beam 13 and the trolley limiting cross beam 16 is 1.8m, and the total weight of the small gantry 1 is about 828.7kg, which meets the requirements of the maximum amplitude / maximum lifting weight 1.1t of the tower crane. The small gantry 1 is hoisted and moved by the tower crane as a whole, and the construction efficiency is greatly improved.

[0074] 1. Mechanical calculation of the small gantry 1:

[0075] Normal stress calculation:

[0076] (1) During hoisting (considering hoisting by two hooks of the main and auxiliary drop chains 141 and 15):

[0077] As shown in Figure 8 , according to the most unfavorable condition, the maximum hoisting is 2.3T, the distance L between the main and auxiliary drop chains 141 and 15 is 1.5m,

[0078] After hoisting, each hook generates a force of 1.15T, F=1150kg×9.8N / kg=11.27KN

[0079] The uniform load of the I16 I-beam itself is: Q=0.201KN / m

[0080] The bending moment of the concentrated load is: FL / 4=11.27KN×1.5 / 4=4.23KN×m

[0081] The bending moment of the uniform load is: QL2 / 8=0.201×1.5×1.5 / 8=0.06KN×m

[0082] The total bending moment is: M=4.29KN×m

[0083] Normal stress: σ=M / W=4290000 / 141000=30.425MPa<[205MPa]

[0084] It meets the requirements.

[0085] (2) During installation (hoisting by one hook of the main or auxiliary drop chain 141 or 15),

[0086] As shown in Figure 9 , the distance L between the main and auxiliary drop chains 141 and 15 is 1.5m, and the hook generates a force of 2.3T after hoisting, F=2300kg×9.8N / kg=22.54KN

[0087] The uniform load of the I16 steel itself is: q = 0.201 KN / m

[0088] The bending moment of the concentrated load is: FL / 4 = 22.54 KN x 1.5 / 4 = 8.46 kn x m

[0089] The bending moment of the uniform load is: QL 2 / 8 = 0.201 x 1.5 x 1.5 / 8 = 0.06 KN x m

[0090] The total bending moment is: M = 8.52 KN x m

[0091] Normal stress: σ = M / W = 8520000 / 141000 = 60.43 MPa <[205 MPa]

[0092] It meets the requirements.

[0093] Shear stress checking:

[0094] (1) During hoisting (hoisted by the main and auxiliary hoisting chains 141 and 15)

[0095] As shown in Figure 10 , the distance L between the main and auxiliary hoisting chains 141 and 15 is 1.5 m, and the cross-sectional area of the I16 steel is A = 26.136 cm 2

[0096] Shear stress g = Q / A = 2.16 MPa <[125 MPa]

[0097] It meets the requirements.

[0098] (2) During installation (hoisted by one of the main or auxiliary hoisting chains 141 or 15)

[0099] As shown in Figure 11 , the distance L between the main and auxiliary hoisting chains 141 and 15 is 1.5 m,

[0100] Shear stress g = Q / A = 4.313 MPa <[125 MPa]

[0101] It meets the requirements.

[0102] Tension checking of the balance wire rope 17 at the rear end of the longitudinal beam 11:

[0103] (1) During hoisting

[0104] The self weight of the small gantry is: 828.73 KG

[0105] The weight of the ship berthing component and the gantry m = 3128.73 KG

[0106] G = mg = 30.662 KN

[0107] The force decomposition is shown in Figure 12 Fig. 2, the length of the longitudinal beam 11 of the small gantry 1 is 9.7 m, the distance between the auxiliary hoist chain 15 and the main hoist chain 141 is 1.0 m, the distance between the main hoist chain 141 and the front end stand 12 is 0.6 m, the distance between the front end stand 12 and the rear end stand 12 is 6.4 m, the distance between the rear end stand 12 and the end of the longitudinal beam 11 is 1.5 m, and the total weight of the small gantry 1 is about 828.7 kg,

[0108] 11270 x 1.6 + 11270 x 0.6 + 15331 x 6.4 = F x 7.9

[0109] F = 15560 N < 104370 N (the tension limit of the 13 mm balance steel wire rope 17)

[0110] The requirement is met.

[0111] (2) During the installation process

[0112] The force decomposition is shown in Figure 13 Fig. 2,

[0113] 22540 x 0.6 + 15331 x 6.4 = F x 7.9

[0114] F = 14132 N < 104370 N (the tension limit of the 13 mm steel wire)

[0115] The requirement is met.

[0116] The cantilever strength is checked before the hoisting and installation process:

[0117] (1) The trolley 5 is at the most front end according to the most unfavorable condition, the distance between the main hoist chain 141 and the trolley limiting beam 16 is 1.0 m, as shown in Figure 14 Fig. 2,

[0118] The total weight of the front end cantilever part is: m = 2435.3858 kg

[0119] Each I-beam bears a weight of 1217.6929 kg

[0120] F = 1217.6929 x 9.8 = 11933.4 N

[0121] The bending moment at point C is: M = 11933.4 x 1.8 = 21480103 N x mm

[0122] The normal stress is: M / W = 21480103 / 141000 = 152.34 MPa < 205 MPa

[0123] The requirement is met.

[0124] (2) Shear stress

[0125] The shear force on point C is: 11933.4 N

[0126] Shear stress g = Q / A = 4.567 MPa < 125 MPa

[0127] The requirement is met.

[0128] 2. Simple raft buoyancy check:

[0129] As shown in Figure 5 , the simple raft 3 is made of 30 floating barrels 31 reinforced by fastener type fixed steel pipe 32. The floating barrels 31 are made of waste gasoline barrels ф0.55x0.9m, a total of 30. The fixed steel pipe 32 is made of ф45mm steel pipe frame. The upper surface of the floating barrel 31 is paved with a transport platform 33, and the safety rail 34 is about 50cm high.

[0130] Using the formula method: F 浮 = ρ 液 gV 排

[0131] Where ρ 液 = 1.05 x 10 3 kg / m 3 , g = 9.8 N / kg, F 浮 = G = 22540 N

[0132] V 排 = F 浮 / ρ 液 g = 22540 / (1050 x 9.8) = 2.2 m 3

[0133] The volume of a single floating barrel is: (0.55 ÷ 2) 2 x 3.14 x 0.9 = 0.2137 m 3

[0134] The total volume of the simple raft is: floating barrels (made of waste gasoline barrels) a total of 30,

[0135] 0.2137 x 30 = 6.4115 m 3 > V 排

[0136] The requirement is met.

[0137] Step 2, use the tower crane to hoist the small gantry 1 made in step 1 to the pile cap 4, and fix the bottom of the four columns 12 of the small gantry 1 on the pile cap 4; according to the installation position of the berthing member 6, the four columns 12 of the small gantry 1 are respectively temporarily welded and fixed with the pile cap 4 steel reinforcement, the balance wire rope 17 at the rear end of the two longitudinal beams 11 is connected with the pile cap 4 steel reinforcement by using high-strength U-shaped shackles, and the small gantry 1 is fixed by using wire ropes to pull adjacent pile caps 4 to increase stability;

[0138] Step 3, after the small gantry 1 is installed, the simple raft 3 is hoisted to the maximum hoisting range of the tower crane, and is temporarily fixed with the cross beam 19 of the small gantry 1 by using wire ropes;

[0139] Step 4, make full use of the hoisting capacity of the tower crane, use the tower crane to hoist the berthing member 6 to the simple raft 3 for temporary fixation, manually pull the simple raft 3 to the installation position of the berthing member 6, and temporarily fix it with the pile cap;

[0140] Step 5, after the main and auxiliary hoisting chains 141 and 15 are connected with the upper end lifting ring and the lower end wire rope of the berthing member 6, the main and auxiliary hoisting chains 141 and 15 are pulled to hoist; after the berthing member 6 is hoisted and turned over, the main hoisting chain 141 continues to hoist, and the auxiliary hoisting chain 15 is loosened, until the auxiliary hoisting chain 15 is completely withdrawn, and the hoisting and turning over of the berthing member 6 is completed;

[0141] Step 6, after the berthing member 6 is hoisted and turned over, the main hoisting chain 141 is loosened, so that the berthing member 6 is lowered to the installation height, the walking trolley 5 is manually pulled to accurately position the berthing member 6, the reserved main reinforcement of the berthing member 6 is welded with the pile cap steel reinforcement after the height and plane position are rechecked, the main hoisting chain 141 is loosened until it is withdrawn, and the installation of the berthing member 6 is completed.

[0142] Repeat steps 2-6 above to hoist the small gantry 1 to the next installation position of the high-pile slab-beam wharf, continue to install the next berthing member 6, until the whole project construction is completed.

[0143] The high-pile slab-beam wharf berthing member installation device and the installation method thereof provided by the application take the installation of 9 berthing members as an example to analyze the economic benefits, as shown in the following table:

[0144] Economic benefit analysis table

[0145]

[0146] From the above table, the high-pile slab-beam wharf berthing component installation device and installation method provided by the application can install 9 berthing components at a cost of 80,000 yuan, compared with the cost of 1,200,000 yuan for installation by a crane ship, thereby saving 1,120,000 yuan.

[0147] The high-pile slab-beam wharf berthing component installation device and installation method provided by the application, the floating barrel is made of waste gasoline barrels, before the waste gasoline barrels are used, the residual gasoline should be thoroughly cleaned to prevent oil pollution to seawater. The small gantry and the simple raft are both made of waste materials, thereby saving steel and profiles, and indirectly reducing the emission of waste gas, waste water and waste residue during steel smelting. Meanwhile, the method avoids the use of large ship machines, reduces the consumption of large ship machines and manpower, effectively solves the difficulty of installation of berthing components caused by the lifting capacity of tower cranes and site conditions, saves construction cost, has high installation efficiency, and ensures the construction period of wharfs and revetment projects.

Claims

1. The high pile plate beam type dock berthing component installation device is characterized by: The invention comprises a small portal frame (1) and a simple raft (3), wherein the small portal frame (1) comprises four columns (12) and two longitudinal beams (11) vertically fixed at their upper ends, the bottoms of the four columns (12) are fixed on the pile cap (4), the front ends of the two longitudinal beams (11) are provided with a safety limit beam (13), and the two longitudinal beams (11) are each provided with a walking trolley (5); a lifting main beam (14) is provided between the two walking trolleys (5); the lower end of the lifting main beam (14) is provided with a main fall chain (13) 41); an auxiliary fall chain (15) is provided at the lower end of the safety limit beam (13); the simple raft (3) comprises a floating bucket (31), a fixed steel pipe (32) and a transport platform (33); the floating bucket (31) is fixed together by the fixed steel pipe (32) by cross-binding in the horizontal and vertical directions; the upper end of the floating bucket (31) is provided with a transport platform (33); the upper three sides of the floating bucket (31) are provided with safety railings (34); and an opening is reserved on one side of the upper end of the floating bucket (31) for placing a mooring member (6).

2. The high pile plate beam type dock berthing component installation device according to claim 1 is characterized in that: A trolley limiting crossbeam (16) is provided in the middle of the two longitudinal beams (11), and a balancing steel wire rope (17) is provided at the rear end of the two longitudinal beams (11), and the bottom of the balancing steel wire rope (17) is fixed on the pile cap (4).

3. The high pile plate beam type dock berthing component installation device according to claim 1 is characterized in that: The traveling trolley (5) comprises a trolley body (51) and a track wheel (52), wherein the bottom of the trolley body (51) is provided with a track wheel (52) adapted to the longitudinal beam (11), the inner side of the trolley body (51) is provided with a safety limit plate (53), and the upper end of the trolley body (51) is provided with a lifting main beam (14).

4. The high pile plate beam type dock berthing component installation device according to claim 1 is characterized in that: An oblique support rod (18) is provided between the front end of the longitudinal beam (11) and the front end column (12).

5. The high pile plate beam type dock berthing component installation device according to claim 1 is characterized in that: Crossbeams (19) are provided at the top and middle of the column (12), and positioning pins (191) are symmetrically provided at both ends of the crossbeam (19) at the top.

6. The installation method of the high-pile sheet beam type dock berthing component installation device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: According to the site conditions of the high-pile sheet beam wharf, a small portal frame (1) is manufactured; Step 2, using a tower crane to lift the small portal frame (1) manufactured in step 1 to the pile cap (4), and fixing the bottoms of the four columns (12) of the small portal frame (1) on the pile cap (4); Step 3, after the small portal frame (1) is installed, the simple raft (3) is hoisted into the water to the maximum lifting range of the tower crane, and is temporarily fixed to the crossbeam (19) of the small portal frame (1) with a steel wire rope; Step 4, using a tower crane to hoist the mooring component (6) to the simple raft (3) for temporary fixation, manually towing the simple raft (3) to the installation position of the mooring component (6), and temporarily fixing it to the platform cap; Step 5, after connecting the main fall chain (141) and the auxiliary fall chain (15) to the lifting ring at the upper end and the steel wire rope at the lower end of the mooring member (6), the main fall chain (141) and the auxiliary fall chain (15) are pulled to lift; Step 6, after the mooring member (6) is lifted and turned over, the main fall chain (141) is loosened to lower the mooring member (6) to the installation height, and the walking trolley (5) is manually pulled to accurately position the mooring member (6). After checking the elevation and plane position, the main reinforcement of the mooring member (6) is firmly welded to the cap reinforcement, and the main fall chain (141) is loosened until it is withdrawn, completing the installation of the mooring member (6).

7. The installation method of the high-pile sheet beam type dock berthing component installation device according to claim 6 is characterized in that: In the step 2, the four uprights (12) of the small portal frame (1) are temporarily welded and fixed to the two pile cap (4) steel bars according to the installation position of the mooring member (6), the balancing steel wire ropes (17) at the rear ends of the two longitudinal beams (11) are connected to the pile cap (4) steel bars using high-strength U-shaped shackles, and the small portal frame (1) is fixed to the adjacent pile cap (4) by means of steel wire ropes to increase stability.

8. The installation method of the high-pile sheet beam type dock berthing component installation device according to claim 6 is characterized in that: In step 5, the main fall chain (141) and the auxiliary fall chain (15) are pulled to lift the berthing component (6). After the berthing component (6) is lifted off the simple raft (3) as a whole, the main fall chain (141) continues to lift the berthing component, while the auxiliary fall chain (15) is loosened until the auxiliary fall chain (15) is completely withdrawn, thereby completing the lifting and flipping of the berthing component (6).

9. The installation method of the high-pile sheet beam type dock berthing component installation device according to claim 6, characterized in that: In the step 1, according to the on-site conditions of the high-pile plate beam type wharf, 16# and 12# I-beams are cut according to the dimensions of the safety verification, processed and welded to form a small portal frame (1); the longitudinal beam (11) of the small portal frame (1) is 9.7m long, the column (12) is 2.5m high, the distance between the front column (12) and the rear column (12) is 6.4m, the crossbeam (19) is 1.5m wide, the safety limit beam (13) and the trolley limit beam ( 16) is 1.8m, the total weight of the small gantry (1) is about 828.7kg, and the total weight is about 828.7kg, which meets the requirement of the maximum amplitude / maximum lifting weight of the tower crane of 1.1t. The small gantry (1) is hoisted and moved as a whole by the tower crane; the simple raft (3) is made of 30 floating barrels (31) reinforced with fastener-type fixed steel pipes (32), and the upper surface of the floating barrel (31) is paved with a transport platform (33), and the safety railing (34) is about 50cm high.

10. The installation method of the high-pile sheet beam type dock berthing component installation device according to claim 6, characterized in that: Repeat steps 2 to 6 above to hoist the small portal frame (1) as a whole to the next installation position of the high-pile sheet beam wharf, and continue to install the next berthing component (6) until the entire project construction operation is completed.

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