Open floor support plate and closed floor support plate are two commonly used floor forms in building structures.

開口樓承板指的是具有開啟的孔洞或樓梯口的樓板，而閉口樓承板則是沒有開口的整體樓板。

An open floor support plate refers to a floor slab with open holes or stairwells, while a closed floor support plate is an integral floor slab without openings.

它們的區別主要體現在以下幾個方面：

Their differences are mainly reflected in the following aspects:

結構形式：開口樓承板需要考慮樓梯、電梯等的布置和結構連接，因此在設計上需要增加相應的支撐和加強措施，以保證整體結構的穩定性。而閉口樓承板則更加簡單，只需要考慮自身的荷載傳遞和抗彎承載能力。

Structural form: The layout and structural connection of stairs, elevators, etc. need to be considered for the opening floor support plate. Therefore, corresponding support and strengthening measures need to be added in the design to ensure the stability of the overall structure. The closed floor support plate is simpler, only considering its own load transfer and bending bearing capacity.

施工難度：開口樓承板由于存在開口，施工過程中需要額外的模板支撐和操作，工藝較為復雜，對施工技術要求較高。而閉口樓承板則施工相對簡單，不需要額外的模板支撐和操作。

Construction difficulty: Due to the presence of openings in the opening floor support plate, additional formwork support and operation are required during the construction process, resulting in complex processes and high requirements for construction technology. The construction of the closed floor support plate is relatively simple and does not require additional formwork support and operation.

功能需求：選擇開口樓承板還是閉口樓承板，取決于具體的功能需求。如果樓板需要設置樓梯、電梯通道等開口，那么就需要選擇開口樓承板。如果樓板沒有特殊的開口需求，只需滿足正常的荷載傳遞功能，那么閉口樓承板即可滿足要求。

Functional requirements: Choosing between open or closed floor support panels depends on the specific functional requirements. If the floor needs to have openings for stairs, elevator passages, etc., then it is necessary to choose the opening floor support plate. If the floor slab does not have special opening requirements and only needs to meet the normal load transfer function, then the closed floor support plate can meet the requirements.

需要選擇哪種樓承板取決于具體的設計和使用需求，包括建筑用途、結構形式、荷載要求、施工條件等綜合考慮因素，并根據相關設計規范來進行選擇和設計。在實際工程項目中，通常由設計師或結構工程師根據具體情況進行評估和選擇。

The type of floor support plate to choose depends on specific design and usage requirements, including comprehensive considerations such as building purpose, structural form, load requirements, construction conditions, etc., and is selected and designed according to relevant design specifications. In actual engineering projects, professional designers or structural engineers usually evaluate and select based on specific situations.