阅读说明：本技术 高强锚栓的大型锚栓群安装支架及其施工方法 (Large anchor bolt group mounting bracket of high-strength anchor bolt and construction method thereof ) 是由 李忠阳 张军辉 朱沈来 雷志强 王强 李欢鑫 刘素军 于 2019-07-31 设计创作，主要内容包括：本发明涉及建筑基础施工技术领域,公开了一种高强锚栓的大型锚栓群安装支架及其施工方法。本发明包括上下对称设置的上定位板和下定位板,连接上定位板和下定位板的立杆,高强锚栓垂直设置在上定位板和下定位板之间,两端部分别与上定位板和下定位板可拆卸连接；所述高强锚栓与安装支架整体吊装设置；立杆中部设置有沿上定位板的长度方向通长设置的横撑支架,高强锚栓通过U形螺栓固定在横撑支架上,立杆外侧设置有斜撑杆。本发明适用范围广泛,施工效率高,连接整体性强,安装精度高。(the invention relates to the technical field of building foundation construction, and discloses a large anchor bolt group mounting bracket of a high-strength anchor bolt and a construction method thereof. The high-strength anchor bolt comprises an upper positioning plate and a lower positioning plate which are arranged up and down symmetrically, and a vertical rod connecting the upper positioning plate and the lower positioning plate, wherein a high-strength anchor bolt is vertically arranged between the upper positioning plate and the lower positioning plate, and two end parts of the high-strength anchor bolt are respectively detachably connected with the upper positioning plate and the lower positioning plate; the high-strength anchor bolt and the mounting bracket are integrally hoisted; the middle part of the upright stanchion is provided with a cross brace bracket which is arranged along the length direction of the upper positioning plate, the high-strength anchor bolt is fixed on the cross brace bracket through a U-shaped bolt, and the outer side of the upright stanchion is provided with an inclined brace rod. The invention has wide application range, high construction efficiency, strong connection integrity and high installation precision.)

1. large-scale crab-bolt crowd installing support of crab-bolt excels in, its characterized in that: the high-strength anchor bolt comprises an upper positioning plate (1) and a lower positioning plate (2) which are arranged in an up-and-down symmetrical manner, and a vertical rod (3) connecting the upper positioning plate (1) and the lower positioning plate (2), wherein the high-strength anchor bolt (4) is vertically arranged between the upper positioning plate (1) and the lower positioning plate (2), two end parts of the high-strength anchor bolt are detachably connected with the upper positioning plate (1) and the lower positioning plate (2) respectively, and the high-strength anchor bolt (4) and an installation support are integrally; the middle part of the upright rod (3) is provided with a cross brace bracket (6) which is arranged along the length direction of the upper positioning plate (1), a high-strength anchor bolt (4) is fixed on the cross brace bracket (6) through a U-shaped bolt (7), and the outer side of the upright rod (3) is provided with an inclined brace rod (5).

2. The large anchor group installing bracket of high-strength anchor according to claim 1, wherein: the upper positioning plate (1) and the lower positioning plate (2) are formed by splicing unit plates according to designed shapes, the unit plates are steel plate strips, the connecting end surfaces of two sides of each unit plate are wedge surfaces and are aligned with the connecting end surfaces of adjacent unit plates in a splicing mode, and the lower portion of each splicing seam (11) is detachably connected with the top end of the vertical rod (3).

3. the large anchor group installing support of high-strength anchor as claimed in claim 2, wherein: a pair of vertical rods (3) is symmetrically arranged below each splicing seam (11), connecting plates (31) are fixedly welded at the top ends of the vertical rods (3), and the connecting plates (31) are fixedly connected with unit plates on two sides of the splicing seams (11) through bolts.

4. The large anchor group installing support of high-strength anchor as claimed in claim 2, wherein: a group of bolt holes are formed in the flange plate on the lower portion of the vertical rod (3) at intervals in the height direction, the bottom end of the vertical rod (3) vertically penetrates through the lower positioning plate (2) downwards, fixing angle steel (33) is arranged between the vertical rod (3) and the lower positioning plate (2), and the fixing angle steel (33) is fixedly connected with the vertical rod (3) and the lower positioning plate (2) through bolts.

5. The large anchor group installing support of high-strength anchor as claimed in claim 2, wherein: the unit plate is a linear or arc-shaped strip, and the central angle corresponding to the arc-shaped strip is not more than 120 degrees.

6. The large anchor group installing support of high-strength anchor as claimed in claim 2, wherein: the unit plate is provided with an oblong through hole, and the high-strength anchor bolt (4) vertically penetrates through the oblong through hole and the cushion block (41) and then is locked and fixed through a nut.

7. the large anchor group installing bracket of high-strength anchor according to claim 1, wherein: the top end of the diagonal brace (5) is welded and fixed with the outer side wall of the vertical rod (3), the bottom end of the diagonal brace is provided with a diagonal brace base (51), and the included angle between the diagonal brace (5) and the vertical rod (3) is 20-35 degrees.

8. the large anchor group installing bracket of high-strength anchor according to claim 1, wherein: the cross brace support (6) is the closed frame that closes and form by the channel-section steel is enclosed, include dead lever (61) with pole setting (3) welded fastening, with dead lever (61) parallel arrangement's spreader bar (62), and connecting rod (63) of connecting dead lever (61) and spreader bar (62), dead lever (61) notch level is outside, the length direction who follows locating plate (1) leads to long the setting, be located the top of diagonal brace (5) top tie point, with pole setting (3) lateral wall welded fastening, high strength anchor (4) are fixed on dead lever (61) or spreader bar (62) through U-shaped bolt (7).

9. the large anchor group installing bracket of high-strength anchor according to claim 1, wherein: the end face of the bottom of the upright rod (3) is provided with a supporting base (32), and the upper surface of the upper positioning plate (1) is provided with hanging rings at intervals.

10. The construction method of the large-sized anchor bolt group installing bracket of a high-strength anchor bolt as set forth in any one of claims 1 to 9, wherein: the method comprises the following steps:

Step one, prefabricating a component: prefabricating the vertical rods (3), the unit plates, the cross brace brackets (6) and the diagonal braces (5) in a factory, and conveying the vertical rods, the unit plates, the cross brace brackets and the diagonal braces to a construction site;

secondly, determining the size of the mounting bracket and the setting height of the high-strength anchor bolt (4) according to the setting position and the setting condition of the anchor bolt group, and assembling and connecting the mounting bracket in an idle site of a construction site;

step three, mounting a high-strength anchor bolt (4); according to design requirements, mounting a high-strength anchor bolt (4) on the ground;

Fourthly, installing the large anchor bolt group in place; integrally hoisting the mounting bracket and the high-strength anchor bolt (4) which are connected into a whole to a preset construction area, and correcting the setting area and the integral positioning of the anchor bolt group;

step five, accurately calibrating the high-strength anchor bolt (4) by adopting a high-precision total station;

Step six, after the calibration is completed, concrete is poured;

rechecking the space position of the anchor bolt at any time in the concrete pouring process, and avoiding the displacement of the high-strength anchor bolt (4) in the pouring and vibrating processes;

And seventhly, after the concrete pouring is finished, recovering the upper positioning plate (1).

Technical Field

The invention relates to the technical field of building foundation construction, in particular to a large anchor bolt group mounting bracket of a high-strength anchor bolt and a construction method thereof.

Background

the installation of ordinary rag crab-bolt adopts locating plate and crab-bolt welding usually, forms a fixed whole, then buries in the major structure and is connected fixedly with the ground. The technical requirement is lower, and the range of application is extensive, and the commonality is strong, but rag bolt's setting need set up fixed support and collocation scaffold frame operation platform and carry out the construction, and field work volume is big, and the efficiency of construction is low, and construction cost is high.

along with the development of building science and technology, the installation of anchor bolt crowd develops gradually, forms a miniature anchor bolt crowd with a plurality of anchor bolts and locating support welded fastening, then wholly installs, has improved the efficiency of construction to a certain extent, but the locating support modular prefabrication, the setting that only is applicable to the anchor bolt crowd of a type, and to the infrastructure of different designs, the suitability is relatively poor, has more restriction, and the commonality is poor.

and high strength anchor bolt is because the material is special, does not allow the welding, consequently can't adopt above-mentioned ordinary anchor bolt's mounting means. The existing installation mode is that the high-strength anchor bolt is connected with the positioning plate bolt and then embedded in the main body structure together, but the connection firmness is poor, the displacement is easy to occur in the pouring process of the main body structure, the construction workload is large, and the construction efficiency is low.

Disclosure of Invention

The invention provides a large anchor bolt group mounting bracket of a high-strength anchor bolt and a construction method thereof, wherein the large anchor bolt group mounting bracket has the advantages of wide application range, high construction efficiency, strong connection integrity and high mounting precision.

The technical problem to be solved is that: the common anchor bolts and the positioning bracket are welded and fixed to form an anchor bolt group, so that the anchor bolt group is narrow in application range, more limited, only suitable for small anchor bolt group construction and poor in universality; the high-strength anchor bolt is pre-buried after being fixed with the positioning plate through the bolt, the connection firmness is poor, the deviation is easy to occur in the construction process, the construction workload is large, and the construction efficiency is low.

In order to solve the technical problems, the invention adopts the following technical scheme:

The invention relates to a large anchor bolt group mounting bracket of a high-strength anchor bolt, which comprises an upper positioning plate and a lower positioning plate which are arranged up and down symmetrically, and a vertical rod connecting the upper positioning plate and the lower positioning plate; the high-strength anchor bolt is vertically arranged between the upper positioning plate and the lower positioning plate, and two end parts of the high-strength anchor bolt are detachably connected with the upper positioning plate and the lower positioning plate respectively; the high-strength anchor bolt is integrally hoisted with the mounting bracket, a cross brace bracket which is arranged along the length direction of the upper positioning plate is arranged in the middle of the vertical rod, the high-strength anchor bolt is fixed on the cross brace bracket through a U-shaped bolt, and an inclined support rod is arranged outside the vertical rod.

The large anchor bolt group mounting bracket for the high-strength anchor bolt is characterized in that the upper positioning plate and the lower positioning plate are formed by splicing unit plates according to designed shapes, the unit plates are steel plate strips, the connecting end surfaces of two sides of each unit plate are wedge surfaces and are spliced and aligned with the connecting end surfaces of adjacent unit plates, and the lower part of a splicing seam is detachably connected with the top end of the vertical rod.

the large anchor bolt group mounting bracket of the high-strength anchor bolt is characterized in that a pair of vertical rods are symmetrically arranged below each splicing seam, the top ends of the vertical rods are fixedly welded with connecting plates, and the connecting plates are respectively fixedly connected with unit plates on two sides of the splicing seams through bolts.

The large anchor bolt group mounting bracket for the high-strength anchor bolt is characterized in that a group of bolt holes are formed in the flange plate at the lower part of the vertical rod at intervals in the height direction, the bottom end of the vertical rod vertically penetrates through the lower positioning plate downwards, and a fixing angle steel is arranged between the vertical rod and the lower positioning plate and is fixedly connected with the vertical rod and the lower positioning plate through bolts.

The large anchor bolt group mounting bracket of the high-strength anchor bolt further comprises unit plates which are straight-line-shaped or arc-shaped strips, and the central angle corresponding to each arc-shaped strip is not more than 120 degrees.

The large anchor bolt group mounting bracket for the high-strength anchor bolt is characterized in that the unit plate is provided with an oblong through hole, and the high-strength anchor bolt vertically penetrates through the oblong through hole and the cushion block and is locked and fixed through the nut.

the large anchor bolt group mounting bracket of the high-strength anchor bolt further comprises an inclined strut base arranged at the bottom end of the inclined strut, wherein the top end of the inclined strut is welded and fixed with the outer side wall of the vertical rod, and the included angle between the inclined strut and the vertical rod is 20-35 degrees.

The invention relates to a large anchor bolt group mounting bracket of a high-strength anchor bolt, in particular to a cross brace bracket which is a closed framework formed by enclosing channel steel, and comprises a fixed rod welded and fixed with an upright rod, a cross brace rod arranged in parallel with the fixed rod and a connecting rod for connecting the fixed rod and the cross brace rod, wherein the notch of the fixed rod faces outwards horizontally, the fixed rod is arranged along the length direction of an upper positioning plate, is positioned above the connecting point of the top of an inclined brace rod and is welded and fixed with the side wall of the upright rod, and the high-strength anchor bolt is fixed on the fixed rod or the cross brace rod through.

The large anchor bolt group mounting bracket for the high-strength anchor bolt is characterized in that a supporting base is arranged on the end face of the bottom of the upright stanchion, and lifting rings are arranged on the upper surface of the upper positioning plate at intervals.

The invention relates to a construction method of a large anchor bolt group mounting bracket of a high-strength anchor bolt, which comprises the following steps:

step one, prefabricating a component: prefabricating the vertical rods, the unit plates, the cross brace brackets and the diagonal braces in a factory, and conveying the vertical rods, the unit plates, the cross brace brackets and the diagonal braces to a construction site;

secondly, determining the size of the mounting bracket and the setting height of the high-strength anchor bolt according to the setting position and the setting condition of the anchor bolt group, and assembling and connecting the mounting bracket in an idle site of a construction site;

step three, mounting a high-strength anchor bolt; according to design requirements, mounting a high-strength anchor bolt on the ground;

fourthly, installing the large anchor bolt group in place; integrally hoisting the mounting bracket and the high-strength anchor bolt which are connected into a whole to a preset construction area, and correcting the setting area and the integral positioning of the anchor bolt group;

Step five, accurately calibrating the high-strength anchor bolt by adopting a high-precision total station;

step six, after the calibration is completed, concrete is poured;

Rechecking the space position of the anchor bolt at any time in the concrete pouring process, and avoiding the displacement of the high-strength anchor bolt in the pouring and vibrating processes;

And seventhly, after the concrete pouring is finished, recovering the upper positioning plate.

Compared with the prior art, the large anchor bolt group mounting bracket of the high-strength anchor bolt and the construction method thereof have the following beneficial effects:

the large anchor bolt group mounting bracket of the high-strength anchor bolt has simple structure, a plurality of anchor bolts are mounted on the bracket in advance, then are hoisted to a construction area along with the bracket in an integral way, then concrete pouring is carried out, and the high-strength anchor bolt and the mounting bracket are poured into the concrete together to form a part of a supporting structure, thereby not only playing a role in positioning and fixing the high-strength anchor bolt, but also improving the rigidity of the supporting structure; and the construction process is greatly simplified, the high-strength anchor bolt is quickly installed, the installation efficiency and the installation precision are improved, the cross operation amount of a construction site and civil engineering construction is greatly reduced, the construction efficiency is improved, the construction period is shortened, and the construction cost is reduced.

the high-strength anchor bolt is detachably connected with the mounting bracket through the bolt without any welding, so that the damage of welding construction to the high-strength anchor bolt is avoided, and the rigidity of the high-strength anchor bolt is ensured. The components are detachably connected, and can be connected into different shapes and sizes according to the setting requirements of the high-strength anchor bolt on a construction site, the application flexibility is high, the application range is wide, the occupied space of each component is small, and the components are convenient to move and transport.

after concrete pouring is completed, the upper positioning plate can be detached and reused, so that material waste is reduced, and construction cost is reduced.

the present invention will be further explained with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a large anchor group mounting bracket of the high-strength anchor according to the present invention;

FIG. 2 is a schematic structural view of the connection between the high-strength anchor bolt and the bracket;

FIG. 3 is a schematic view of a detailed structure of the connection between the high-strength anchor bolt and the cross-brace bracket;

FIG. 4 is a schematic top view of the mounting bracket at the cross brace bracket;

FIG. 5 is a schematic structural view of a connecting joint between the top of the vertical rod and the upper positioning plate;

Fig. 6 is a schematic structural view of a connecting node between the bottom of the vertical rod and the lower positioning plate.

reference numerals:

1-positioning a plate; 11-splicing seams; 2-lower positioning plate; 3-erecting a rod; 31-a connecting plate; 32-a support base; 33-fixed angle steel; 4-high-strength anchor bolts; 41-cushion block; 5-diagonal brace rods; 51-a diagonal brace base; 6-a cross brace bracket; 61-a fixing rod; 62-transverse supporting rods; 63-connecting rods; 7-U-shaped bolt.

Detailed Description

As shown in fig. 1 to 6, the large anchor bolt group mounting bracket of the high-strength anchor bolt of the invention comprises an upper positioning plate 1 and a lower positioning plate 2 which are arranged up and down symmetrically, a vertical rod 3 connecting the upper positioning plate 1 and the lower positioning plate 2, and a supporting base 32 positioned at the bottom end of the vertical rod 3; the high-strength anchor bolt 4 is vertically arranged between the upper positioning plate 1 and the lower positioning plate 2, and two end parts of the high-strength anchor bolt are detachably connected with the upper positioning plate 1 and the lower positioning plate 2 respectively.

As shown in fig. 2, the upper positioning plate 1 and the lower positioning plate 2 are formed by splicing unit plates according to the design shape of a main body structure, the unit plates are steel plate strips with the thickness not less than 6mm, the unit plates are linear or arc strips, the central angle corresponding to the arc strips is not more than 120 degrees, the connecting end surfaces at two sides of each unit plate are wedge surfaces and are spliced and aligned with the connecting end surfaces of adjacent unit plates, the lower parts of the splicing seams 11 are detachably connected with the top ends of the vertical rods 3, and a pair of vertical rods 3 is symmetrically arranged below each splicing seam 11; the unit plate is provided with an oblong through hole, the high-strength anchor bolt 4 vertically penetrates through the oblong through hole and the cushion block 41 and then is locked and fixed through a nut, and the arrangement of the oblong through hole facilitates fine adjustment of the arrangement position of the high-strength anchor bolt 4 in the horizontal direction. The upper surface interval of the upper positioning plate 1 is provided with rings for hoisting the whole mounting bracket.

as shown in fig. 5, the upright 3 is an i-steel, the top end is fixedly welded with a connecting plate 31, the connecting plate 31 is fixedly connected with the unit plates on both sides of the splicing seam 11 through bolts, the connecting plate 31 is a rectangular steel plate with the thickness not less than 6mm, the length perpendicular to the splicing seam 11 is not less than 200mm, the bottom end of the upright 3 vertically passes through the lower positioning plate 2 downwards, the bottom end surface is provided with a supporting base 32, the supporting base 32 is a rectangular steel plate with the thickness not less than 6mm, the side length is not less than 200mm, the upper surface is fixedly welded with the bottom end surface of the upright 3 to ensure that the whole bracket can be stably supported on the ground, as shown in fig. 6, a fixed angle steel 33 is arranged between the upright 3 and the lower positioning plate 2, the fixed angle steel 33 is fixedly connected with the upright 3 and the lower positioning plate 2 through bolts, a group, the fine adjustment of the installation height of the high-strength anchor bolt 4 is facilitated. According to the anchor bolt crowd set up the position and set up the specific conditions of height, select the pole setting 3 of co-altitude, when making whole support place on mounted position's structural foundation, can realize the co-altitude position that 4 settings of high-strength anchor bolt in certain extent.

the outside of the vertical rod 3 is also provided with an inclined strut 5, the top end of the inclined strut 5 is welded and fixed with the outer side wall of the vertical rod 3, the bottom end of the inclined strut is provided with an inclined strut base 51, the inclined strut base 51 is a rectangular steel plate with the thickness not less than 6mm, the side length not less than 200mm, the upper surface of the inclined strut is welded and fixed with the bottom end face of the inclined strut 5, an included angle between the inclined strut 5 and the vertical rod 3 is 20-35 degrees, a certain supporting effect can be achieved, the stability of the whole support is ensured, a large space cannot be occupied, and construction of an.

As shown in fig. 3 and 4, a cross brace support 6 is horizontally arranged in the middle of the vertical rod 3, the cross brace support 6 is a closed frame formed by enclosing channel steel, and includes a fixing rod 61 welded and fixed to the vertical rod 3, a cross brace 62 arranged in parallel with the fixing rod 61, and a connecting rod 63 connecting the fixing rod 61 and the cross brace 62, the notch of the fixing rod 61 is horizontally outward, and is arranged along the length direction of the upper positioning plate 1, and is located above the top connection point of the diagonal brace 5 and welded and fixed to the side wall of the vertical rod 3, and the high-strength anchor bolt 4 is fixed to the fixing rod 61 or the cross brace 62 through a U-shaped bolt 7.

The length of high-strength anchor bolt 4 is longer, the length of high-strength anchor bolt 4 in the project that this embodiment was used reaches 6m, it is fixed near top board 1 and bottom plate 2, the straightness that hangs down of high-strength anchor bolt 4 is difficult to control, the skew takes place easily, and the overall structure stability with the support formation is relatively poor, set up stull support 6, not only can effectively strengthen the wholeness between a plurality of high-strength anchor bolts 4, and can strengthen the joint strength of high-strength anchor bolt 4 and support, avoid high-strength anchor bolt 4 at follow-up concrete placement in-process, because the emergence is collided and is shifted, ensure construction quality.

The invention relates to a construction method of a large anchor bolt group mounting bracket of a high-strength anchor bolt, which comprises the following steps:

Step one, prefabricating a component: prefabricating the vertical rods 3, the unit plates, the cross brace brackets 6 and the diagonal braces 5 in a factory, and conveying the vertical rods, the unit plates, the cross brace brackets and the diagonal braces to a construction site;

secondly, determining the size of the mounting bracket and the setting height of the high-strength anchor bolt 4 according to the setting position and the setting condition of the anchor bolt group, and assembling and connecting the mounting bracket in an idle site of a construction site;

arranging unit plates according to the arrangement shape of the anchor bolt group, connecting and fixing the unit plates with the upright stanchion 3 to complete the connection of the upper positioning plate 1, the lower positioning plate 2 and the upright stanchion 3, then welding and fixing the cross brace bracket 6 on the upright stanchion 3, opening holes on the upper positioning plate 1 and the lower positioning plate 2 according to the arrangement position of the high-strength anchor bolt 4, determining the arrangement position of a U-shaped bolt 7 on the cross brace bracket 6, and completing the assembly of the mounting bracket;

step three, installing a high-strength anchor bolt 4; according to design requirements, mounting the high-strength anchor bolt 4 on the ground;

the high-strength anchor bolt 4 penetrates through corresponding holes in the upper positioning plate 1 and the lower positioning plate 2, two ends of the high-strength anchor bolt 4 are fixed with the upper positioning plate 1 and the lower positioning plate 2 respectively by utilizing a nut and a cushion block 41, and the middle part of the high-strength anchor bolt is locked and fixed on a fixing rod 61 or a transverse stay bar 62 through a U-shaped bolt 7;

Fourthly, installing the large anchor bolt group in place; integrally hoisting the mounting bracket and the high-strength anchor bolt 4 which are connected into a whole to a preset construction area, and correcting the setting area and integral positioning of the anchor bolt group;

A reflective sheet is pasted on the upper surface of the upper positioning plate 1 to serve as a control point, the specific position is designed according to the actual situation on site so as to facilitate the measurement of the total station, the reflective sheet is arranged at the corner position as much as possible, and each single bracket body is not less than 5;

Step five, accurately calibrating the high-strength anchor bolt 4 by adopting a high-precision total station;

After the integral correction is finished, performing spot check on the high-strength anchor bolt 4, wherein the spot check method is to measure the center of the high-strength anchor bolt 4 by a total station, the deviation is less than 3mm, and the spot check proportion is 30%;

step six, after the calibration is completed, concrete is poured;

Rechecking the space position of the anchor bolt at any time in the concrete pouring process, and avoiding the displacement of the high-strength anchor bolt 4 in the pouring and vibrating processes;

Specifically, a control point reserved on the upper positioning plate 1 is monitored in real time through a total station, meanwhile, a side station is carried out in the pouring process, concrete is symmetrically poured from two sides of the high-strength anchor bolt 4 support during pouring, and direct impact on the support is avoided;

step seven, after the concrete pouring is finished, recovering the upper positioning plate 1;

And (3) removing the nuts and gaskets at the tops of the high-strength anchor bolts 4, removing the bolts for fixing the connecting plate 31 and the upper positioning plate 1, and taking down the upper positioning plate 1 piece by piece, so that the high-strength anchor bolts can be repeatedly used, and the construction cost is reduced.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.