CN206529229U - It is a kind of to increase the tower crane device of independence and freedom height - Google Patents

Abstract

The utility model discloses a tower crane device for increasing the independent free height, comprising a tower body, the tower body is divided into an upper tower body and a lower tower body, wherein the upper tower body is composed of the standard tower body of the first tower crane, and the lower tower body The tower body is composed of the tower body foundation of the second tower crane and several standard joints; the upper tower body and the lower tower body are connected through conversion joints. The tower crane conversion section of the tower crane device of the utility model installs the tower body with the standard configuration of the first tower crane on the foundation and several standard joints of the second tower crane of a certain larger type, so that the first tower crane has the same standard configuration as the second tower crane. The same or similar independent free height under the circumstances, to achieve the purpose of raising the independent free height of the first tower crane.

Description

A tower crane device with increased independent free height

technical field

The utility model relates to a construction equipment, in particular to a tower crane device capable of increasing the independent free height.

Background technique

In some construction projects, there are tall buildings or group towers within the scope of the tower arm around the tower crane. The tower crane cannot be equipped with attachment devices because the structure has not yet been constructed or other reasons, and the sum of the depth of the foundation pit and the height of nearby buildings exceeds the tower crane alone. The free height, or the tower crane in the group tower operation cannot avoid, and the tower crane will not be able to rotate normally. There are two traditional solutions: one is to use a boom-type tower crane or a tower crane with a larger specification, but the rental fee is too high and uneconomical; the other is to limit the rotation angle of the tower crane, but it is prone to failure and unsafe .

Contents of the invention

Purpose of the invention: The purpose of this utility model is to address the deficiencies of the prior art, and provide a tower crane device that can solve the need for high-rise buildings or group tower operations within the range of rotation of the tower arm around the tower crane, and can increase the independent free height.

Technical solution: The tower crane device with increased independent free height described in the utility model includes a tower body, and the tower body is divided into an upper tower body and a lower tower body, wherein the upper tower body is composed of the standard tower body of the first tower crane , the lower section of the tower body is composed of the tower body foundation of the second tower crane and several standard sections, and the lifting height parameter of the second tower crane is higher than the lifting height parameter of the first tower crane; the upper section of the tower body and the lower section The towers are connected by a conversion joint. The upper side of the conversion joint is provided with an upper connecting piece that matches the basic section of the first tower crane, and the lower side is provided with a connecting piece that matches the standard section of the second tower crane. The lower connector.

A further preferred technical solution of the utility model is that the conversion joint is composed of two vertically intersecting load-bearing beams, and the upper connecting piece and the lower connecting piece are respectively located on the upper and lower sides of the four corners of the conversion joint.

Preferably, the load value of the conversion joint is determined by the foundation load of the first tower crane.

Preferably, the lower tower body is composed of the tower body foundation of the second tower crane and several standard sections, and the tower body foundation includes the foundation section of the second tower crane and the base of the second tower crane.

Preferably, the base of the second tower crane is a fixed outrigger or a pre-embedded foundation section.

Beneficial effects: (1) The tower crane conversion section of the tower crane device of the present utility model installs the tower body with the standard configuration of the first tower crane on the foundation and several standard sections of the second tower crane of a certain larger type, so that the first tower crane has The same or similar independent free height as the standard configuration of the second tower crane achieves the purpose of raising the independent free height of the first tower crane, and the other parameters of the tower crane device are consistent with the first tower crane except for the independent free height. The power is low, and the rental fee is much lower than that of the second tower crane with high specifications directly, which saves the construction cost;

(2) All the loads of the first tower crane in the middle and upper part of the utility model are borne by the conversion joint, so the load value of the conversion joint is determined by the foundation load of the first tower crane, the support is stable, and the upper tower body and the lower tower body are effectively connected. Simultaneously in the utility model, the base part of the whole tower crane device adopts the tower body foundation of the second tower crane, which ensures the stability of the tower crane device and ensures construction safety.

Description of drawings

Fig. 1 is the structural representation of tower crane device described in the utility model;

Fig. 2 is the structural representation of conversion joint described in the utility model;

Fig. 3 is a top view of the conversion joint described in the utility model;

In the figure 1-upper tower body, 2-lower tower body, 3-transition section, 11-first foundation section, 12-first standard section, 21-base, 22-second foundation section, 23-second standard section , 31-load-bearing beam, 32-upper connector, 33-lower connector.

detailed description

The technical scheme of the utility model will be described in detail below with the accompanying drawings, but the protection scope of the utility model is not limited to the described embodiments.

Embodiment: A tower crane device for increasing independent free height, as shown in FIG. 1 , includes an upper tower body 1 and a lower tower body 2 connected up and down through a conversion joint 3 .

The upper tower body 1 is composed of the first foundation section 11 and the first standard section 12 of the first tower crane, and the lower tower body 2 is composed of the base 21 of the second tower crane, the second foundation section 22 and several second standard sections 23, and The hoisting height parameter of the second tower crane is higher than the hoisting height parameter of the first tower crane.

The transition section 3 is composed of two vertically intersecting load-bearing beams 31, and the load value of the transition section 3 is determined by the foundation load of the first tower crane. The upper side of the four corners of the conversion section 3 is provided with an upper connecting piece 32 matching the first basic section 11 , and the lower side is provided with a lower connecting piece 33 matching the second standard section 23 .

If the independent free height h of the standard configuration of the selected first tower crane is required to achieve the independent free height H, the specific erection steps of the tower crane device are as follows:

(1) Select another larger type of second tower crane whose free height can reach H. Usually, the second tower crane has a larger hoisting weight, a larger foundation, and a larger cross-section tower than the first tower crane. Festival;

(2) Whether it is feasible to be calculated by the tower crane manufacturer, and relevant explanatory documents shall be issued;

(3) Issue the design drawing of the tower crane conversion section. The upper and lower interfaces must match the upper and lower tower sections, and it is determined through calculation. Since the tower crane conversion section needs to bear all the load of the upper first tower crane, the design load value of the tower crane conversion section can be based on the first tower crane. Calculate the base load on the manual;

(4) Entrust a professional processing unit to complete the processing and production of the conversion section, and issue a certificate of conformity, with an accuracy within ±2mm;

(5) The base uses the standard fixed outriggers or pre-embedded foundation sections of the second tower crane, and the foundation section uses the standard foundation sections of the second tower crane;

(6) When erecting the tower, first install the tower section of the second tower crane, then install the tower crane conversion section, and finally install the first tower crane section normally, and install and dismantle the tower crane to consider appropriate lifting equipment;

(7) The structural openings reserved for structural construction shall be reserved with reference to the size of the second tower section and the tower crane conversion section to meet the needs of tower demolition.

In this embodiment, the outrigger-fixed tower crane of model TC7525-16D is used as the first tower crane, and the tower crane of model TC7052 is used as the second tower crane as an example to describe in detail.

The independent free height of TC7525-16D outrigger fixed tower crane is 49.5 meters:

1 x TC7525 basic section (7.5m) + 1 x TC7525 reinforced section (3m) + 13 x TC7525 standard section (3m) = 49.5m.

By using the tower crane conversion section, the independent free height reaches 69 meters under the condition of using the standard configuration of the tower body of the TC7525 tower crane, the foundation of the TC7052 tower crane, and the standard section of the TC7052 tower crane:

1×TC7052 basic section (6m)+2×TC7052 standard section (6m)+1×transition section (1.5m)+1×TC7525 basic section (7.5m)+1×TC7525 reinforced section (3m)+13 ×TC7525 standard section (3 meters)

=69 meters.

It can be seen that the height of the tower wall, tower, and slewing mechanism will be greatly increased (about 10-20 meters).

As stated above, although the invention has been shown and described with reference to certain preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. a kind of increase the tower crane device of independence and freedom height, including tower body, it is characterised in that the tower body is divided into epimere tower body With hypomere tower body, wherein the epimere tower body is made up of the standard configuration tower body of the first tower crane, hypomere tower body by the second tower crane tower body Basic and some section standard knot compositions, and hoisting depth of the hoisting depth parameter higher than first tower crane of second tower crane Parameter；By changing section connection between the epimere tower body and the hypomere tower body, the upside of the conversion section is provided with and institute State the epimere connector that the base section of the first tower crane matches, downside is provided with what is matched with the standard knot of second tower crane Hypomere connector.

2. the tower crane device of increase independence and freedom height according to claim 1, it is characterised in that the conversion section is by two The spandrel girder composition of individual square crossing, the epimere connector is located at the corner of the conversion section with the hypomere connector respectively Both sides up and down.

3. the tower crane device of increase independence and freedom height according to claim 2, it is characterised in that the lotus of the conversion section Load value is determined by the given tensile load of the first tower crane.

4. it is according to claim 1 increase independence and freedom height tower crane device, it is characterised in that the hypomere tower body by The basic and some section standard knot composition of the tower body of second tower crane, the tower body basis includes the base section and the second tower of the second tower crane The base hung.

5. the tower crane device of increase independence and freedom height according to claim 4, it is characterised in that second tower crane Base is fixed supporting leg or embedded foundation section.