How to optimize the design of modern building stone curtain wall

The dry-hanging stone curtain wall on the outer wall is highly respected for its unique natural solemnity, gorgeous color style and appearance. It not only effectively prevents the stone wall alkali, discoloration, hollowing, falling off and other defects caused by the traditional decorative stone wet slurry method, but also has short construction period, high installation accuracy, good decoration effect, reducing the weight of the building, and improving the seismic performance. Advantages, especially the characteristics of strong installation ability and safe use. It has been widely used in the decoration of building exterior walls and is favored by owners and architects. The curtain wall industry is with the rapid development of the construction industry. The building curtain wall is the combination of building technology, function and architectural art in the surrounding structure of the building, and it is the advanced exterior decoration of today's buildings. Stone is an ancient building material. Stone has become one of the first choice materials for outdoor decoration because of its noble and elegant, durable, stable and solemn, returning to nature, bringing people the taste of life and returning to nature. This article briefly discusses the optimal design of stone curtain walls in modern buildings, hoping to help relevant practitioners. Foreword The optimization design of modern architectural stone curtain wall usually determines the precise size of stone, color, material, joint material, etc. according to architectural drawings. A detailed vertical dimension drawing of the stone and the node details of each complex part were drawn, and then the corresponding mechanical strength was calculated according to the requirements of weight, size, earthquake resistance, and wind pressure, and the dry hanging method of the stone keel system was determined. When determining the specific shape and processing size of dry hanging stone, accurate verification must be carried out to ensure that it is foolproof (especially when using more expensive imported stone) to avoid huge economic losses. At present, the design unit usually only provides the facade grid form of the curtain wall dry hanging stone and a small number of node diagrams. The construction unit cannot carry out construction according to the drawing. Therefore, it is necessary to optimize the design of the slate and related dry hanging system, which is usually hanging slab construction. Responsibilities of the unit. Due to the uneven technical level, many stone projects do not even have corresponding mechanical calculations and field test verification. The selection and determination of stone and dry hanging system are carried out based on daily construction experience. Due to insufficient strength or excessive strength, it is easy to cause material waste. The optimization design of stone curtain wall needs to determine the stone, the selected dry hanging method and the mechanical calculation of the stone and dry hanging system, and determine the size specifications of the keel system, buried parts, connecting parts, etc., in order to ensure the safety of the stone curtain wall, under certain conditions The calculated results were tested on site mechanical properties. 1. When optimizing the design of stone selection materials, the design unit and construction unit should cooperate with each other according to the designer's requirements for the architectural effect of the curtain wall grid form and material color, and provide various stone samples to the builder to help them determine as soon as possible Stone used. According to the stone data, we should pay attention to the technical performance indicators such as the surface characteristics, color and texture of the stone. Although the stone supplier provides the physical performance indicators of the stone, as a natural material, the physical properties of the stone have undergone great changes and need to be re-determined in order to establish the corresponding design indicators for the stone design. 2. Choosing the dry hanging method The dry hanging of stone has steel nail type, through seam type, short groove type, rear bolt type, etc. There are two commonly used types: short groove type and rear bolt type. In contrast, the short groove type has lower cost, but is not as safe as the rear bolt type. It is usually used in situations where the weight of the stone is not too large or the safety factor is not too high; the rear bolt type is dry hanging stable, but the cost is higher. When the thickness of the stone is 30mm, the area> 1.5m2) or the safety performance of the stone is high. 3. Mechanical calculation of stone and dry hanging system First determine the load and action form of the curtain wall, then determine the dry hanging method of the stone, then determine the calculation model of the stone slab, and then calculate the load value of the dry hanging system. Finally, according to the load value of the dry hanging system, determine the structure of the dry hanging system and the specifications and dimensions of the spreader, joints, buried parts, horizontal keel and vertical keel. The design of the stone and its dry hanging system should meet the requirements of the national standard metal stone curtain wall engineering technical code.