Featured Articles

What are the key points to consider when establishing a mineral warehouse on the coast of Nigeria?

-
图片
👉 Project location: Nigerian coast 👉 Project type: Mine warehouse (span 100 metres, length 125 metres) 1. Structural Design  Span and Length:  The mine warehouse has a span of 100 metres and a length of 125 metres, employing a large-span steel structure design to ensure structural stability and load-bearing capacity.  It is recommended to use a steel truss structure or space frame structure to meet the large-span requirements and optimise material usage.  The structural design must consider wind loads, seismic loads, and dynamic loads during the operation of the bucket wheel excavator. Foundation Design:  Since the project is located by the sea, the foundation may be relatively soft. It is recommended to use deep foundation design (such as pile foundations) to ensure structural stability.  Foundation construction must consider the impact of groundwater levels and saline-alkali environments, and foundation reinforcement should be carried out when necessa...
发表评论

What are the options for building a mosque for 5,000 people in Saudi Arabia?

-

 

I. Design codes and loading requirements

💖1. Saudi Building Code (SBC 301) Core Parameters

Seismic design: according to Class II site category, seismic acceleration of 0.25g, seismic force calculation using the equivalent lateral force method, the main structure displacement angle limit of 1/200.

Wind load: basic wind pressure is 0.75kN/m² (100-year return period), equivalent wind pressure is 1.2kN/m² after considering height coefficient, local wind suction coefficient is 1.5.

Snow load: reference to the historical data of Mecca area, the additional roof load is calculated as 0.5kN/m².

💖2. Functional space indicators

1.5000 people worship space needs main hall net area ≥3500m² (calculated at 0.7m²/person).

2.suggests a 45m x 80m rectangular plan, with a central dome 30m in diameter, flanked by wavy vaults.

II. Specialised disaster-resistant design 

    💖1. Wind-resistant design

1. Installation of deflector plate (angle 25°) in the gable to reduce vortex vibration.

        2. Experimentally verified by Xuzhou Sufang Wind Tunnel: the wind pressure                  coefficient is reduced by 37% when the wind angle is 45°.


💖2. Seismic construction

1. Adopt double lateral force-resisting system: central dome as rigid frame + peripheral arch as articulated support

2. Viscous dampers (damping coefficient C=2500kN-s/m) are set up at 1/4 of the span.

III.Recommended technology mix programmes

💖body structure:Single-layer mesh shell + space truss arch on both sides
هيكل الجسم: غلاف شبكي أحادي الطبقة + قوس دعامة فراغي على كلا الجانبين

💖protective structure:Aluminium-magnesium-manganese panels with vertical locking edges + photovoltaic
هيكل واقي: ألواح من الألومنيوم والمغنيسيوم والمنغنيز مع حواف قفل عمودية + خلايا كهروضوئية

评论

发表评论

此博客中的热门博文

What Are The Architectural Features Of The Space Frame Fabrication?

-
图片
What Are The Architectural Features Of The Space Frame Fabrication? Buildings processed by space frame   are a good form of construction, because the materials used are mainly metal, which have better toughness than other materials. This will not only help enhance the load-bearing capacity of the building itself, but also shorten the construction period. To reduce the difficulty of construction, let's talk about the characteristics of space frame   production   buildings： space frame 1. The   components of space   frame has good mechanical properties, and its stiffness and overall stability are better than those of general planar structures. 2. The space frame   structure has certain regularity and is convenient for construction. There are a   large number of same form components and nodes in the space frame   structure, which brings convenience to factory production and structural installation, ensu res   the quality of the project, acceler...
阅读全文

The development status of the space frame structure

-
图片
The development status of the space frame structure space frame   structure has been developed greatly in the last 30 years, and has been widely used inside and outside. space frame   structure plan arrangement is flexible, space shape is beautiful, convenient for building shape processing and decoration, decoration, can adapt to different span, different plane shape, different support conditions, different functional needs of the building.   Especially in the roof structure of large and medium span, the space frame   structure shows its superiority and is used in large number of large sports buildings, public buildings, industrial buildings, and also widely used in the roof of some small buildings, such as gas stations, toll stations, large canopies. In recent years, with the wide application of electronic computers and the development of computing technology, the design efficiency of the space   frame structure has been greatly improved. The construction and i...
阅读全文

What is the truss welding method?

-
图片
  truss roof Most of the rods in joist structures are welded at the nodes. Before welding, the webs and chords need to be cut in advance according to the shape of the weld seam of each member to be welded, which requires cutting of the web ends and slotting of the chords. Since the joist structure is intersected by coherent line between the rods and rods, the shape of rod end section is complicated, so in the actual cutting process, two methods of mechanical automatic cutting process and manual cutting process are generally used.
阅读全文