CN204199188U - A kind of head tower vertical turning lifting mechanism - Google Patents
A kind of head tower vertical turning lifting mechanism Download PDFInfo
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- CN204199188U CN204199188U CN201420639370.5U CN201420639370U CN204199188U CN 204199188 U CN204199188 U CN 204199188U CN 201420639370 U CN201420639370 U CN 201420639370U CN 204199188 U CN204199188 U CN 204199188U
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Abstract
The utility model relates to head tower vertical transfer technical field of construction, disclose a kind of head tower vertical turning lifting mechanism, comprise lower end and the hinged head tower of abutment surface, also comprise strut and tie, the lower end of described strut and tie and the lower end of head tower hinged, the centre of head tower is provided with Connection Block, Connection Block is connected with head tower bolt, load-bearing drag-line is provided with between Connection Block and strut and tie upper end, both sides abutment surface being positioned at head tower are respectively equipped with drag-line holder, drag-line holder is provided with anchor case, wherein be provided with traction cable away from the anchor case on the drag-line holder of head tower, the outer end of traction cable is rotationally connected by cable connector and strut and tie upper end, reaction drag-line is provided with in anchor case wherein on the drag-line holder of head tower, reaction drag-line is rotationally connected by connector and Connection Block, anchor beam is provided with between anchor case and drag-line holder.Therefore, the utility model has use safety, convenience, the beneficial effect of stability under loading in head tower vertical turning lifting process.
Description
Technical field
The utility model relates to head tower vertical transfer technical field of construction, particularly relates to a kind of head tower vertical turning lifting mechanism.
Background technology
Bridge needs head tower is installed, head tower is as the stress point of various reinforcement cable wire, for supporting whole bridge, head tower lower end and abutment surface hinged, need head tower vertical turning lifting to vertical direction, traditional bridge steel tower vertical transfer construction, the rigidity strut and tie of stress check calculation structure to be generally two ends be all steel work, pull bar and depression bar are all be articulated and connected with head tower structure.Though the method effectively can complete the stress check calculation of head tower vertical transfer, there is following shortcoming: it is not strong that rigidity strut and tie exceedes applicability in the structure of certain scale at head tower height; Time-consuming, effort when the steel work pull bar that length exceedes certain scale is installed, and installation quality not easily ensures; Push-and-pull rod is from great, and material materials are many, and cost is high; When arranging many pull bars, different pull bar is difficult to keep length consistent, causes pull bar unbalance stress; During many pull bar unbalance stress, not easily adjust; Improperly can produce flexural tensile stress as controlled in push-and-pull rod loading process, self structure is easily destroyed.Due to above-mentioned shortcoming, during head tower vertical transfer is constructed, rigidity strut and tie structure stress is complicated, constructional difficulties, and strut and tie is vulnerable to flexural stress, cause deformation, at the head tower vertical turning lifting initial stage, pull bar, depression bar are very little for the component of vertical direction, therefore the initial stage that promotes needs to apply huge load, requires very high to loading equipemtn.
Utility model content
The utility model, in order to solve the problems referred to above in prior art, provides a kind of use safety, convenience, the head tower vertical turning lifting mechanism of stability under loading in head tower vertical turning lifting process.
To achieve these goals, the utility model adopts following technical scheme:
A kind of head tower vertical turning lifting mechanism, comprise lower end and the hinged head tower of abutment surface, also comprise strut and tie, the lower end of described strut and tie and the lower end of head tower hinged, the centre of described head tower is provided with Connection Block, described Connection Block is connected with head tower bolt, load-bearing drag-line is provided with between described Connection Block and strut and tie upper end, the two ends of load-bearing drag-line are provided with cable connector, cable connector and Connection Block, be rotationally connected between strut and tie, both sides abutment surface being positioned at head tower are respectively equipped with drag-line holder, drag-line holder is provided with anchor case, wherein be provided with traction cable away from the anchor case on the drag-line holder of head tower, the outer end of traction cable is rotationally connected by cable connector and strut and tie upper end, reaction drag-line is provided with in anchor case wherein on the drag-line holder of head tower, reaction drag-line is rotationally connected by connector and Connection Block, anchor beam is provided with between anchor case and drag-line holder, the two ends of described anchor beam are respectively by rotating shaft and anchor case, drag-line holder is rotationally connected, the rotating shaft at anchor beam two ends is mutually vertical.
Strut and tie, load-bearing drag-line, head tower forms triangle, strut and tie, traction cable, ground also forms triangle, so just form stable triangle stress system, traction cable provides tractive force, thus head tower is slowly erected, at the setting initial stage, load-bearing drag-line can provide a larger vertical component for head tower, thus the effective initial tensile force reducing traction cable, in uphill process, the axial of strut and tie is just in time load-bearing drag-line, the resultant direction of traction cable, therefore strut and tie is only subject to axial active force, torsion force can not be subject to, strut and tie can not be out of shape, stability under loading in head tower uphill process, reaction drag-line plays the effect of safeguard protection in head tower uphill process, simultaneously when shaft tower rises to 90 degree time, reaction drag-line plays spacing effect, prevent head tower overturning.
As preferably, described drag-line holder is connected with abutment surface by pre-embedded steel slab, the downside of described pre-embedded steel slab is provided with some vertical angle steel, angle steel, pre-embedded steel slab are embedded in the concrete of abutment surface, the below being positioned at pre-embedded steel slab in concrete is also provided with some fining twisted steels, be welded to connect between drag-line holder and pre-embedded steel slab, be provided with connecting hole bottom pre-embedded steel slab, drag-line holder, the upper end of described fining twisted steel is passed connecting hole and passes through nut check.During traction cable traction, drag-line holder bears huge pulling force, therefore in order to ensure the stability of drag-line holder, adopting angle steel, fining twisted steel as built-in fitting, strengthening the connective stability between drag-line holder and pre-embedded steel slab.
As preferably, the lower end of described fining twisted steel is provided with and bears cover.Bearing cover can prevent fining twisted steel from deviating from from concrete.
As preferably, be also provided with the stiffener net of some layers of level between described fining twisted steel, angle steel, stiffener net is connected by steel wire with the junction of fining twisted steel, angle steel.Stiffener net can increase and concrete contact surface, and fining twisted steel, angle steel are connected in one in concrete, entirety is more stable simultaneously.
Therefore, the utility model has use safety, convenience, the beneficial effect of stability under loading in head tower vertical turning lifting process.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is A place close-up schematic view in Fig. 1.
Fig. 3 is B place close-up schematic view in Fig. 1.
Fig. 4 is C place close-up schematic view in Fig. 1.
Fig. 5 is D place close-up schematic view in Fig. 1.
In figure: abutment surface 1 head tower 2 strut and tie 3 Connection Block 4 load-bearing drag-line 5 cable connector 6 drag-line holder 7 anchor case 8 traction cable 9 reaction drag-line 10 anchor beam 11 pre-embedded steel slab 12 angle steel 13 fining twisted steel 14 nut 15 stiffener net 16 bears cover 17
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of head tower vertical turning lifting mechanism as depicted in figs. 1 and 2, comprise lower end and the hinged head tower 2 of abutment surface 1, also comprise strut and tie 3, the lower end of strut and tie and the lower end of head tower hinged, the centre of head tower 2 is provided with Connection Block 4, Connection Block 4 is connected with head tower bolt, load-bearing drag-line 5 is provided with between Connection Block 4 and strut and tie 3 upper end, as shown in Figure 3 and Figure 4, the two ends of load-bearing drag-line are provided with cable connector 6, cable connector and Connection Block, be rotationally connected between strut and tie, both sides abutment surface 1 being positioned at head tower are respectively equipped with drag-line holder 7, drag-line holder is provided with anchor case 8, traction cable 9 is provided with in anchor case on drag-line holder 7 on the right side of head tower 2 on abutment surface, the outer end of traction cable 9 is rotationally connected by cable connector and strut and tie 3 upper end, reaction drag-line 10 is provided with in anchor case on drag-line holder on the left of head tower on abutment surface, reaction drag-line 10 is rotationally connected by connector and Connection Block 4.
As shown in Figure 5, anchor beam 11 is provided with between anchor case 8 and drag-line holder, the two ends of anchor beam are respectively by rotating shaft and anchor case, drag-line holder is rotationally connected, the rotating shaft at anchor beam two ends is mutually vertical, drag-line holder 7 is connected with abutment surface by pre-embedded steel slab 12, the downside of pre-embedded steel slab 12 is provided with some vertical angle steel 13, angle steel, pre-embedded steel slab is embedded in the concrete of abutment surface, the below being positioned at pre-embedded steel slab in concrete is also provided with some fining twisted steels 14, the lower end of fining twisted steel is provided with and bears cover 17, in the present embodiment, angle steel has 15, array distribution in 3X5, fining twisted steel has 8, array distribution in 2X4, be welded to connect between drag-line holder and pre-embedded steel slab, pre-embedded steel slab, connecting hole is provided with bottom drag-line holder, the upper end of fining twisted steel is passed connecting hole and is locked by nut 15, also be provided with the stiffener net 16 of some layers of level between fining twisted steel, angle steel, stiffener net is connected by steel wire with the junction of fining twisted steel, angle steel.
Strut and tie, load-bearing drag-line, head tower forms triangle, strut and tie, traction cable, ground also forms triangle, so just form stable triangle stress system, traction cable provides tractive force, thus head tower is slowly erected, at the setting initial stage, load-bearing drag-line can provide a larger vertical component for head tower, thus the effective initial tensile force reducing traction cable, in uphill process, the axial of strut and tie is just in time load-bearing drag-line, the resultant direction of traction cable, therefore strut and tie is only subject to axial active force, torsion force can not be subject to, strut and tie can not be out of shape, stability under loading in head tower uphill process, reaction drag-line plays the effect of safeguard protection in head tower uphill process, simultaneously when shaft tower rises to 90 degree time, reaction drag-line plays spacing effect, prevent head tower overturning.
Claims (4)
1. a head tower vertical turning lifting mechanism, comprise lower end and the hinged head tower of abutment surface, it is characterized in that, also comprise strut and tie, the lower end of described strut and tie and the lower end of head tower hinged, the centre of described head tower is provided with Connection Block, described Connection Block is connected with head tower bolt, load-bearing drag-line is provided with between described Connection Block and strut and tie upper end, the two ends of load-bearing drag-line are provided with cable connector, cable connector and Connection Block, be rotationally connected between strut and tie, both sides abutment surface being positioned at head tower are respectively equipped with drag-line holder, drag-line holder is provided with anchor case, wherein be provided with traction cable away from the anchor case on the drag-line holder of head tower, the outer end of traction cable is rotationally connected by cable connector and strut and tie upper end, reaction drag-line is provided with in anchor case wherein on the drag-line holder of head tower, reaction drag-line is rotationally connected by connector and Connection Block, anchor beam is provided with between anchor case and drag-line holder, the two ends of described anchor beam are respectively by rotating shaft and anchor case, drag-line holder is rotationally connected, the rotating shaft at anchor beam two ends is mutually vertical.
2. a kind of head tower vertical turning lifting mechanism according to claim 1, it is characterized in that, described drag-line holder is connected with abutment surface by pre-embedded steel slab, the downside of described pre-embedded steel slab is provided with some vertical angle steel, angle steel, pre-embedded steel slab are embedded in the concrete of abutment surface, the below being positioned at pre-embedded steel slab in concrete is also provided with some fining twisted steels, be welded to connect between drag-line holder and pre-embedded steel slab, be provided with connecting hole bottom pre-embedded steel slab, drag-line holder, the upper end of described fining twisted steel is passed connecting hole and passes through nut check.
3. a kind of head tower vertical turning lifting mechanism according to claim 2, it is characterized in that, the lower end of described fining twisted steel is provided with and bears cover.
4. a kind of head tower vertical turning lifting mechanism according to Claims 2 or 3, it is characterized in that, be also provided with the stiffener net of some layers of level between described fining twisted steel, angle steel, stiffener net is connected by steel wire with the junction of fining twisted steel, angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639370.5U CN204199188U (en) | 2014-10-30 | 2014-10-30 | A kind of head tower vertical turning lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420639370.5U CN204199188U (en) | 2014-10-30 | 2014-10-30 | A kind of head tower vertical turning lifting mechanism |
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| Publication Number | Publication Date |
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| CN204199188U true CN204199188U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420639370.5U Active CN204199188U (en) | 2014-10-30 | 2014-10-30 | A kind of head tower vertical turning lifting mechanism |
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| CN (1) | CN204199188U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464001A (en) * | 2015-11-05 | 2016-04-06 | 中铁十八局集团有限公司 | Construction method of backward vertical rotation of steel tower |
| CN110219249A (en) * | 2019-06-28 | 2019-09-10 | 中铁大桥局第七工程有限公司 | A kind of unidirectional vertical transfer device and its installation method for the oblique head tower of single limb |
-
2014
- 2014-10-30 CN CN201420639370.5U patent/CN204199188U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105464001A (en) * | 2015-11-05 | 2016-04-06 | 中铁十八局集团有限公司 | Construction method of backward vertical rotation of steel tower |
| CN110219249A (en) * | 2019-06-28 | 2019-09-10 | 中铁大桥局第七工程有限公司 | A kind of unidirectional vertical transfer device and its installation method for the oblique head tower of single limb |
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