CN111851815A - A curtain wall vertical keel support structure - Google Patents

Abstract

The invention discloses a curtain wall vertical keel support structure, which comprises: the pin, fossil fragments end support width of cloth and fossil fragments outer support width of cloth. The support structure provided by the technical scheme can properly release the restraint of two ends of the vertical keel along the length direction of the curtain wall, and reduce the temperature internal force restraint; meanwhile, the out-of-plane rotation of the vertical keel can be provided properly, and the bending moments at two ends are reduced remarkably; the design of the support is optimized, stress concentration is reduced, and temperature stress is reduced.

Description

A curtain wall vertical keel support structure

technical field

The invention belongs to the field of civil structures, in particular to a vertical keel support structure of a curtain wall.

Background technique

Large-scale venues, such as airports, railway stations, gymnasiums and other large-span roof structures, often use large curtain walls for their facades. The curtain wall is supported by vertical keels in the form of hollow trusses. The vertical keels are connected horizontally by horizontal members. Both ends of the vertical keels are connected to the floor slab at the lower end and the ring beam at the upper end through hinge supports.

When the longitudinal length and height of the curtain wall are large, the curtain wall will expand greatly in the longitudinal direction under the action of ambient temperature rise and solar radiation. Because the two ends of the vertical keel can only rotate within the hinge, and cannot move and rotate along the longitudinal direction of the curtain wall, and the middle of the vertical keel is deformed differently under the lateral action of the horizontal connection system at different heights, resulting in the spindle-shaped lateral deformation of the vertical keel. , and its vertical middle is the most deformed. The large lateral deformation of the vertical keel may cause the two ends of the vertical keel to bear a large bending moment. When the design of the end of the vertical keel and the support is unreasonable, it may lead to the cracking of the end of the vertical keel or the support. There have been similar engineering diseases, such as the effect of extreme loads, such as strong wind, which may threaten the safety and stability of the structure.

SUMMARY OF THE INVENTION

One aspect of this technical solution is to provide a vertical keel support structure for a curtain wall, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

The utility model relates to a vertical keel support structure of a curtain wall, comprising: a pin, a keel end bearing width and a keel outer bearing width. The keel end support width includes an end support base plate and two end support connection tongues, the two end support connection tongues are parallel to each other, and both are fixedly connected to the end support base plate through their roots, and the end supports are connected to each other. The width of the root of the tongue is equal to the width of the bottom plate of the end support, the distance between the two pieces of the end support connecting tongue is a distance H, and the end support connecting tongue is provided with a first pin hole; The support web includes an outer support base plate and an outer support connection tongue, the root of the outer support connection tongue is fixedly connected with the outer support base plate, and the outer support connection tongue is provided with a second pin hole, so The thickness of the outer support connection tongue is h; the outer support connection tongue is located between the two pieces of the end support connection tongue, and the pin passes through the first pin hole and the second pin hole, The thickness of the outer support connecting tongue satisfies h=H/2.

The double-end bearing connection tongue design of the keel end bearing web can ensure that the keel end bearing web and the keel have the same in-plane and out-of-plane bending stiffness; Toward keels have the same out-of-plane stiffness without stress concentration at the ends due to sudden stiffness changes. The outer support connecting tongue and the two end support connecting tongues maintain a gap, that is, the clear distance between the double-end support connecting tongues is twice the thickness of the outer support connecting tongue. This can ensure that when the curtain wall rises and falls due to temperature, the lower end of the curtain wall can slip along the longitudinal direction of the curtain wall to a certain extent, and the temperature stress can be released through displacement.

Further, the end support connecting tongue and the end support bottom plate are fixedly connected by a double-sided groove welding process. In addition, the connecting tongue of the outer support and the bottom plate of the outer support are fixedly connected by a double-sided groove welding process.

Further, the inner diameter of the first pin hole is 10 mm larger than the diameter of the pin. The inner diameter of the second pin hole is 2 mm larger than the diameter of the pin.

Further, the end of the pin is provided with a thread, and the relative fixation of the pin and the keel end support web is realized through cooperation with the nut. The pin adopts the structure of a screw and a nut, the thread is located at the end, and the surface corresponding to the two first pin holes and between them is a cylindrical surface. A gasket is also arranged between the nut and the connecting tongue of the end support.

Further, the first pin hole is rounded on both sides, and the rounded corner radius is 1/4 of the thickness of the connecting tongue of the end support.

Further, the distance from the first pin hole to the top of the end support connecting tongue is a, and the distance from the second pin hole to the bottom plate of the outer support is b, so that b≧a+200mm is satisfied. The outer support bottom plate has a large height, which ensures the increase of bearing capacity and stability, and allows the outer support bottom plate to have enough deformation space under the action of the out-of-plane bending moment transmitted by the support, reducing the bending stress, especially is the stress at the connection to the base plate of the outer support.

The invention has the following advantages: the support structure provided by the technical solution can moderately release the restraint of the two ends of the vertical keel along the length direction of the curtain wall, and reduce the temperature and internal force constraints; at the same time, it can also moderately provide the out-of-plane rotation of the vertical keel, which significantly reduces the Bending moment at both ends; optimize bearing design to reduce stress concentration and temperature stress.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings that are used in the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present invention, but not all of the embodiments, and those skilled in the art can obtain other design solutions and drawings according to these drawings without creative work.

Fig. 1 is the front view of described curtain wall vertical keel support structure;

Figure 2 is a right side view of the vertical keel support structure of the curtain wall.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

Embodiment 1, as shown in Figures 1 and 2, a vertical keel support structure of a curtain wall, including: a pin 010, a keel end support width 020, and a keel outer support width 030. The keel end support web 020 includes an end support bottom plate 021 and two end support connection tongues 022 . The two pieces of end support connecting tongues 022 are parallel to each other, and both are fixedly connected to the end support bottom plate 021 through their roots. The double-end bearing connecting tongue 022 of the keel end bearing web 020 is designed to ensure that the keel end bearing web 020 and the keel have the same in-plane and out-of-plane bending stiffness. The width of the root of the end support connecting tongue 022 is equal to the width of the end support bottom plate 021 . The outer surface of the end support connecting tongue 022 is flush with the side surface of the keel, which can ensure that the vertical keel has the same out-of-plane stiffness, and will not cause stress concentration at the end due to sudden stiffness changes. The distance between the two pieces of the end support connecting tongue 022 is 90mm, and the end support connecting tongue 022 is provided with a first pin hole; the keel outer support width 030 includes an outer support bottom plate 031 and an outer support Connection tongue 032, the root of the outer support connection tongue 032 is fixedly connected with the outer support bottom plate 031, the outer support connection tongue 032 is provided with a second pin hole, the outer support connection tongue 032 The thickness is 45mm. The outer support connecting tongue 032 is located between the two end support connecting tongues 022, and the pin passes through the first pin hole and the second pin hole. The thickness of the outer support connecting tongue 032 and the distance between the two end support connecting tongues 022 are 2:1. This size ratio can ensure that when the curtain wall rises and falls due to temperature, the lower end of the curtain wall can slide along the longitudinal direction of the curtain wall to a certain extent. , the temperature stress is relieved by displacement.

As a further preferred embodiment, the end support connecting tongue 022 and the end support bottom plate 021 are fixedly connected by a double-sided groove welding process. In addition, the outer support connecting tongue 032 and the outer support bottom plate 031 are fixedly connected by a double-sided groove welding process.

As a further preferred embodiment, the inner diameter of the first pin hole is 10 mm larger than the diameter of the pin 010 . The inner diameter of the second pin hole is 2 mm larger than the diameter of the pin 010 . At the same time, the rounded corners on both sides of the first pin hole are matched, and the rounded corner radius is 1/4 of the thickness of the connecting tongue 022 of the end support. The keel 040 can be allowed to rotate out of plane around the cylinder of the pin 010 in the support structure, and through the rotation, the out-of-plane bending moment acting on the keel is released.

As a further preferred embodiment, the end of the pin is provided with a thread, and the pin and the keel end support web 020 are relatively fixed by cooperation with the nut. The pin adopts the structure of a screw and a nut, the thread is located at the end, and the surface corresponding to the two first pin holes and between them is a cylindrical surface. A washer is also provided between the nut and the connecting tongue 022 of the end support.

As a further preferred embodiment, the distance from the first pin hole to the top end of the end support connecting tongue 022 is a, and the distance from the second pin hole to the outer support bottom plate 031 is b, then b≥a+200mm . The outer support bottom plate 031 has a large height, which ensures the increase of bearing capacity and stability, and allows the outer support bottom plate 031 to have enough deformation space under the action of the out-of-plane bending moment transmitted by the support to reduce the bending stress. , especially the stress at the connection with the outer support bottom plate 031 .

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples," or the like, is meant to incorporate the embodiment. A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, The scope of the invention is defined by the claims and their equivalents.

Claims (9)

1. a curtain wall vertical keel support structure, is characterized in that, comprises: pin; The keel end support width includes an end support base plate and two end support connection tongues, the two end support connection tongues are parallel to each other, and both are fixedly connected to the end support base plate through their roots, and the end support connection The width of the root of the tongue is equal to the width of the bottom plate of the end support, the distance between the two pieces of the end support connecting tongue is a distance H, and the end support connecting tongue is provided with a first pin hole; The outer support plate of the keel comprises an outer support base plate and an outer support connection tongue, the root of the outer support connection tongue is fixedly connected with the outer support base plate, and the outer support connection tongue is provided with a second the pin hole, the thickness of the connecting tongue of the outer support is h; The outer support connecting tongue is located between the two pieces of the end support connecting tongue, the pin passes through the first pin hole and the second pin hole, and the thickness of the outer support connecting tongue satisfies h =H/2. 2 . The vertical keel support structure of the curtain wall according to claim 1 , wherein the end support connecting tongue and the end support bottom plate are fixedly connected by a double-sided groove welding process. 3 . 3 . The vertical keel support structure of the curtain wall according to claim 1 , wherein the connecting tongue of the outer support and the bottom plate of the outer support are fixedly connected by a double-sided groove welding process. 4 . 4 . The vertical keel support structure for a curtain wall according to claim 1 , wherein the inner diameter of the first pin hole is 10 mm larger than the diameter of the pin. 5 . 5 . The vertical keel support structure of the curtain wall according to claim 4 , wherein the inner diameter of the second pin hole is 2 mm larger than the diameter of the pin. 6 . 6 . The vertical keel support structure of the curtain wall according to claim 5 , wherein the ends of the pins are provided with threads, and the pins and the keel end support widths are relatively fixed by cooperation with nuts. 7 . 7 . The vertical keel support structure of the curtain wall according to claim 6 , further comprising a washer, and the washer is located between the nut and the connecting tongue of the end support. 8 . 8 . The vertical keel support structure of the curtain wall according to claim 1 , wherein the first pin hole is rounded on both sides, and the radius of the rounded corner is 1/4 of the thickness of the connecting tongue of the end support. 9 . 9 . The vertical keel support structure of the curtain wall according to claim 1 , wherein the distance from the first pin hole to the top of the end support connecting tongue is a, and the second pin hole is to the bottom plate of the outer support. 10 . The distance is b, then b≥a+200mm is satisfied.

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